forked from AuroraMiddleware/gtk
dfba226908
Sun Nov 5 04:24:53 2000 Owen Taylor <otaylor@redhat.com>
* gtk/gtkcellrenderertextpixbuf.c: Make parent_class
static.
Tue Sep 19 10:54:22 2000 Owen Taylor <otaylor@redhat.com>
* gtk/gtkimcontext*.[ch] gtk/gtkimmulticontext.[ch]
gtk/gtktextlayout.[ch] gtk/gtktextview.c gtk/gtkentry.c:
Add support for positioning the cursor within the preedit string.
Mon Sep 18 23:56:32 2000 Owen Taylor <otaylor@redhat.com>
* gtk/gtktextview.c: Check for bindings after passing
events to im context filter.
Mon Sep 18 11:50:51 2000 Owen Taylor <otaylor@redhat.com>
* gtk/gtktextlayout.c (add_preedit_attrs): Handle
empty attribute lists properly.
Sun Sep 17 10:08:16 2000 Owen Taylor <otaylor@redhat.com>
* gtk/queryimmodules.c (main): Return non-zero exit
status if errors were encountered querying any
modules.
Sat Sep 16 14:01:52 2000 Owen Taylor <otaylor@redhat.com>
* gtk/gtk.h: include gtkmodule.h gtkoldeditable.h,
don't include gtkthemes.h.
* gtk/testgtk.c gtk/testtext.c: Set environment variables
to point
* gtk/Makefile.am: Add new .c and .h files, build
gtk-query-immodules and use it to create a gtk.immodules
file for use of test programs.
* gtk/gtkpreview.c: remove extra blank line.
Sat Sep 16 13:21:04 2000 Owen Taylor <otaylor@redhat.com>
* gtk/gtkimcontextsimple.c (gtk_im_context_simple_add_table):
Add the ability to add extra tables beyond the default
one, and also the ability to have compose sequences
that are prefixes of other compose sequences.
* gtk/gtkimcontextsimple.c: Export a preedit string which
consists of possible candidates for keystrokes that have
been entered but not yet committed.
* gtk/gtkimcontext.[ch] gtk/immulticontext.[ch]
gtk/gtkimcontextsimple.[ch]: add gtk_im_context_reset()
* gtk/gtkmulticontext.[ch] (gtk_im_multicontext_append_menuitems):
Add a function to add input-method switching menu items
to a menu.
* gtk/gtkimmulticontext.[ch]: Properly handly set_client_window
when switching input methods.
* gtk/gtkimcontextsimple.[ch]: Change the format of
the compose table to allow compose tables of different
lengths / sequence.
Sat Sep 16 13:05:48 2000 Owen Taylor <otaylor@redhat.com>
* gtk/gtkimmodule.[ch]: Support routines for loading
GtkIMContext implementations dynamically at runtime.
* gtk/queryimmodules.c: Program to query the available
input modules and write the results into a file.
* gtk/gtkrc.[ch] (gtk_rc_get_im_module_file): Add
extra config options "im_module_file" (cache file for
input method modules), and "im_module_path" - path
to look for modules when generating cache file.
This doesn't scale.
Sat Sep 16 13:09:06 2000 Owen Taylor <otaylor@redhat.com>
* gtk/gtkthemes.[ch] gtk/gtkmodule.[ch]: Move most of the
generic code from gtkthemes into a new abstraction
GtkModule which has the logic for implementing
a loadable module which implements a number of
GObject types.
Sat Sep 16 13:07:13 2000 Owen Taylor <otaylor@redhat.com>
* gtk/gtkeditable.[ch]: Convert GtkEditable from
a class into an interface
* gtk/gtkoldeditable.[ch]: Move the old editable
implementation into here, so legacy widgets can
still rely on the implemenation. GtkOldEditable
exports GtkEditable. Make selection handling
code use new text conversion functions (and
handle UTF-8 as a side-effect). Use GtkClipboard
for CLIPBOARD.
* gtk/gtktext.[ch] gtk/gtkcombo.c gtk/gtkspinbutton.c:
Adopt to match above changes.
* gtk/gtkentry.[ch]: Implement GtkEditable directly,
avoid GtkOldEditable implementation. Restructure
to reduce number of places that modify state directly.
Move to GtkBindingSet. Display the preedit string.
Queue recomputation of PangoLayout and scroll position
to improve effiency of doing complex changes naively.
Add a menu with cut/copy/paste and input method selection.
Thu Sep 14 22:11:05 2000 Owen Taylor <otaylor@redhat.com>
* gtk/gtktextlayout.[ch]: Add gtk_text_layout_set_preedit_string()
to set preedit string and attributes; display preedit string by
inserting string and attributes at cursor when creating the
GtkTextLineDisplay.
* gtk/gtktextlayout.c: Move all conversions between byte
positions in PangoLayout and GtkTextIter into new functions
line_display_iter_to_index/index_to_iter that properly
handle the preedit string.
* gtk/gtktextmark.[ch]: Restore gtk_text_mark_get_name, modify
it to return const char * (eventually will end up
as GCONST char *, most likely.)
* gtk/gtktextview.[ch]: Handle the preedit string, call
gtk_im_context_reset() as necessary, add a menu to switch
input methods.
* gtk/gtktextlayout.[ch]: Remove useless
gtk_text_layout_get_log_attrs() function.
4917 lines
149 KiB
C
4917 lines
149 KiB
C
/* GTK - The GIMP Toolkit
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* gtktextview.c Copyright (C) 2000 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include <string.h>
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#include "gtkbindings.h"
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#include "gtkdnd.h"
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#include "gtkintl.h"
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#include "gtkmain.h"
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#include "gtkmenu.h"
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#include "gtkmenuitem.h"
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#include "gtksignal.h"
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#include "gtktext.h"
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#include "gtktextdisplay.h"
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#include "gtktextview.h"
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#include "gtkimmulticontext.h"
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#include "gdk/gdkkeysyms.h"
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#include <string.h>
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#define FOCUS_EDGE_WIDTH 1
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#define DRAG_THRESHOLD 8
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#define SCREEN_WIDTH(widget) text_window_get_width (GTK_TEXT_VIEW (widget)->text_window)
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#define SCREEN_HEIGHT(widget) text_window_get_height (GTK_TEXT_VIEW (widget)->text_window)
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enum {
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MOVE_CURSOR,
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SET_ANCHOR,
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INSERT_AT_CURSOR,
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DELETE_FROM_CURSOR,
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CUT_CLIPBOARD,
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COPY_CLIPBOARD,
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PASTE_CLIPBOARD,
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TOGGLE_OVERWRITE,
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SET_SCROLL_ADJUSTMENTS,
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LAST_SIGNAL
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};
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enum {
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ARG_0,
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ARG_HEIGHT_LINES,
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ARG_WIDTH_COLUMNS,
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ARG_PIXELS_ABOVE_LINES,
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ARG_PIXELS_BELOW_LINES,
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ARG_PIXELS_INSIDE_WRAP,
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ARG_EDITABLE,
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ARG_WRAP_MODE,
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LAST_ARG
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};
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static void gtk_text_view_init (GtkTextView *text_view);
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static void gtk_text_view_class_init (GtkTextViewClass *klass);
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static void gtk_text_view_destroy (GtkObject *object);
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static void gtk_text_view_finalize (GObject *object);
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static void gtk_text_view_set_arg (GtkObject *object,
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GtkArg *arg,
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guint arg_id);
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static void gtk_text_view_get_arg (GtkObject *object,
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GtkArg *arg,
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guint arg_id);
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static void gtk_text_view_size_request (GtkWidget *widget,
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GtkRequisition *requisition);
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static void gtk_text_view_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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static void gtk_text_view_realize (GtkWidget *widget);
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static void gtk_text_view_unrealize (GtkWidget *widget);
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static void gtk_text_view_style_set (GtkWidget *widget,
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GtkStyle *previous_style);
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static void gtk_text_view_direction_changed (GtkWidget *widget,
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GtkTextDirection previous_direction);
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static gint gtk_text_view_event (GtkWidget *widget,
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GdkEvent *event);
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static gint gtk_text_view_key_press_event (GtkWidget *widget,
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GdkEventKey *event);
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static gint gtk_text_view_key_release_event (GtkWidget *widget,
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GdkEventKey *event);
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static gint gtk_text_view_button_press_event (GtkWidget *widget,
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GdkEventButton *event);
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static gint gtk_text_view_button_release_event (GtkWidget *widget,
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GdkEventButton *event);
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static gint gtk_text_view_focus_in_event (GtkWidget *widget,
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GdkEventFocus *event);
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static gint gtk_text_view_focus_out_event (GtkWidget *widget,
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GdkEventFocus *event);
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static gint gtk_text_view_motion_event (GtkWidget *widget,
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GdkEventMotion *event);
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static void gtk_text_view_draw (GtkWidget *widget,
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GdkRectangle *area);
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static gint gtk_text_view_expose_event (GtkWidget *widget,
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GdkEventExpose *expose);
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static void gtk_text_view_draw_focus (GtkWidget *widget);
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/* Source side drag signals */
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static void gtk_text_view_drag_begin (GtkWidget *widget,
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GdkDragContext *context);
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static void gtk_text_view_drag_end (GtkWidget *widget,
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GdkDragContext *context);
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static void gtk_text_view_drag_data_get (GtkWidget *widget,
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GdkDragContext *context,
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GtkSelectionData *selection_data,
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guint info,
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guint time);
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static void gtk_text_view_drag_data_delete (GtkWidget *widget,
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GdkDragContext *context);
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/* Target side drag signals */
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static void gtk_text_view_drag_leave (GtkWidget *widget,
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GdkDragContext *context,
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guint time);
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static gboolean gtk_text_view_drag_motion (GtkWidget *widget,
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GdkDragContext *context,
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gint x,
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gint y,
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guint time);
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static gboolean gtk_text_view_drag_drop (GtkWidget *widget,
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GdkDragContext *context,
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gint x,
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gint y,
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guint time);
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static void gtk_text_view_drag_data_received (GtkWidget *widget,
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GdkDragContext *context,
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gint x,
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gint y,
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GtkSelectionData *selection_data,
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guint info,
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guint time);
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static void gtk_text_view_set_scroll_adjustments (GtkTextView *text_view,
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GtkAdjustment *hadj,
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GtkAdjustment *vadj);
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static void gtk_text_view_move_cursor (GtkTextView *text_view,
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GtkMovementStep step,
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gint count,
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gboolean extend_selection);
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static void gtk_text_view_set_anchor (GtkTextView *text_view);
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static void gtk_text_view_scroll_pages (GtkTextView *text_view,
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gint count);
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static void gtk_text_view_insert_at_cursor (GtkTextView *text_view,
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const gchar *str);
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static void gtk_text_view_delete_from_cursor (GtkTextView *text_view,
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GtkDeleteType type,
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gint count);
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static void gtk_text_view_cut_clipboard (GtkTextView *text_view);
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static void gtk_text_view_copy_clipboard (GtkTextView *text_view);
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static void gtk_text_view_paste_clipboard (GtkTextView *text_view);
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static void gtk_text_view_toggle_overwrite (GtkTextView *text_view);
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static void gtk_text_view_unselect (GtkTextView *text_view);
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static void gtk_text_view_validate_onscreen (GtkTextView *text_view);
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static void gtk_text_view_get_first_para_iter (GtkTextView *text_view,
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GtkTextIter *iter);
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static void gtk_text_view_scroll_calc_now (GtkTextView *text_view);
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static void gtk_text_view_set_attributes_from_style (GtkTextView *text_view,
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GtkTextAttributes *values,
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GtkStyle *style);
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static void gtk_text_view_ensure_layout (GtkTextView *text_view);
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static void gtk_text_view_destroy_layout (GtkTextView *text_view);
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static void gtk_text_view_reset_im_context (GtkTextView *text_view);
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static void gtk_text_view_start_selection_drag (GtkTextView *text_view,
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const GtkTextIter *iter,
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GdkEventButton *event);
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static gboolean gtk_text_view_end_selection_drag (GtkTextView *text_view,
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GdkEventButton *event);
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static void gtk_text_view_start_selection_dnd (GtkTextView *text_view,
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const GtkTextIter *iter,
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GdkEventMotion *event);
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static void gtk_text_view_start_cursor_blink (GtkTextView *text_view);
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static void gtk_text_view_stop_cursor_blink (GtkTextView *text_view);
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static void gtk_text_view_value_changed (GtkAdjustment *adj,
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GtkTextView *view);
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static void gtk_text_view_commit_handler (GtkIMContext *context,
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const gchar *str,
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GtkTextView *text_view);
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static void gtk_text_view_preedit_changed_handler (GtkIMContext *context,
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GtkTextView *text_view);
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static void gtk_text_view_mark_set_handler (GtkTextBuffer *buffer,
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const GtkTextIter *location,
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GtkTextMark *mark,
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gpointer data);
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static void gtk_text_view_get_virtual_cursor_pos (GtkTextView *text_view,
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gint *x,
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gint *y);
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static void gtk_text_view_set_virtual_cursor_pos (GtkTextView *text_view,
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gint x,
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gint y);
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static GtkAdjustment* get_hadjustment (GtkTextView *text_view);
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static GtkAdjustment* get_vadjustment (GtkTextView *text_view);
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static void gtk_text_view_popup_menu (GtkTextView *text_view,
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GdkEventButton *event);
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/* Container methods */
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static void gtk_text_view_add (GtkContainer *container,
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GtkWidget *child);
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static void gtk_text_view_remove (GtkContainer *container,
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GtkWidget *child);
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static void gtk_text_view_forall (GtkContainer *container,
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gboolean include_internals,
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GtkCallback callback,
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gpointer callback_data);
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/* FIXME probably need the focus methods. */
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typedef struct _GtkTextViewChild GtkTextViewChild;
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struct _GtkTextViewChild
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{
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GtkWidget *widget;
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GtkTextChildAnchor *anchor;
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/* These are ignored if anchor != NULL */
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GtkTextWindowType type;
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gint x;
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gint y;
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};
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static GtkTextViewChild* text_view_child_new_anchored (GtkWidget *child,
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GtkTextChildAnchor *anchor,
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GtkTextLayout *layout);
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static GtkTextViewChild* text_view_child_new_window (GtkWidget *child,
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GtkTextWindowType type,
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gint x,
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gint y);
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static void text_view_child_free (GtkTextViewChild *child);
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static void text_view_child_realize (GtkTextView *text_view,
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GtkTextViewChild *child);
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struct _GtkTextWindow
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{
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GtkTextWindowType type;
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GtkWidget *widget;
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GdkWindow *window;
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GdkWindow *bin_window;
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GtkRequisition requisition;
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GdkRectangle allocation;
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};
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static GtkTextWindow *text_window_new (GtkTextWindowType type,
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GtkWidget *widget,
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gint width_request,
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gint height_request);
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static void text_window_free (GtkTextWindow *win);
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static void text_window_realize (GtkTextWindow *win,
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GdkWindow *parent);
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static void text_window_unrealize (GtkTextWindow *win);
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static void text_window_size_allocate (GtkTextWindow *win,
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GdkRectangle *rect);
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static void text_window_scroll (GtkTextWindow *win,
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gint dx,
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gint dy);
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static void text_window_invalidate_rect (GtkTextWindow *win,
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GdkRectangle *rect);
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static gint text_window_get_width (GtkTextWindow *win);
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static gint text_window_get_height (GtkTextWindow *win);
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static void text_window_get_allocation (GtkTextWindow *win,
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GdkRectangle *rect);
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enum
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{
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TARGET_STRING,
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TARGET_TEXT,
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TARGET_COMPOUND_TEXT,
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TARGET_UTF8_STRING,
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TARGET_TEXT_BUFFER_CONTENTS
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};
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static GtkTargetEntry target_table[] = {
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{ "GTK_TEXT_BUFFER_CONTENTS", GTK_TARGET_SAME_APP,
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TARGET_TEXT_BUFFER_CONTENTS },
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{ "UTF8_STRING", 0, TARGET_UTF8_STRING },
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{ "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
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{ "TEXT", 0, TARGET_TEXT },
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{ "text/plain", 0, TARGET_STRING },
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{ "STRING", 0, TARGET_STRING }
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};
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static GtkContainerClass *parent_class = NULL;
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static guint signals[LAST_SIGNAL] = { 0 };
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GtkType
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gtk_text_view_get_type (void)
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{
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static GtkType our_type = 0;
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if (our_type == 0)
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{
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static const GtkTypeInfo our_info =
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{
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"GtkTextView",
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sizeof (GtkTextView),
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sizeof (GtkTextViewClass),
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(GtkClassInitFunc) gtk_text_view_class_init,
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(GtkObjectInitFunc) gtk_text_view_init,
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/* reserved_1 */ NULL,
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/* reserved_2 */ NULL,
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(GtkClassInitFunc) NULL
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};
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our_type = gtk_type_unique (GTK_TYPE_CONTAINER, &our_info);
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}
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return our_type;
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}
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static void
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add_move_binding (GtkBindingSet *binding_set,
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guint keyval,
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guint modmask,
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GtkMovementStep step,
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gint count)
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{
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g_return_if_fail ((modmask & GDK_SHIFT_MASK) == 0);
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gtk_binding_entry_add_signal (binding_set, keyval, modmask,
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"move_cursor", 3,
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GTK_TYPE_ENUM, step,
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GTK_TYPE_INT, count,
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GTK_TYPE_BOOL, FALSE);
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/* Selection-extending version */
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gtk_binding_entry_add_signal (binding_set, keyval, modmask | GDK_SHIFT_MASK,
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"move_cursor", 3,
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GTK_TYPE_ENUM, step,
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GTK_TYPE_INT, count,
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GTK_TYPE_BOOL, TRUE);
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}
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|
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static void
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gtk_text_view_class_init (GtkTextViewClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GtkObjectClass *object_class = GTK_OBJECT_CLASS (klass);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
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GtkBindingSet *binding_set;
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parent_class = gtk_type_class (GTK_TYPE_CONTAINER);
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|
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/*
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* Arguments
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*/
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gtk_object_add_arg_type ("GtkTextView::height_lines", GTK_TYPE_INT,
|
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GTK_ARG_READWRITE, ARG_HEIGHT_LINES);
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gtk_object_add_arg_type ("GtkTextView::width_columns", GTK_TYPE_INT,
|
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GTK_ARG_READWRITE, ARG_WIDTH_COLUMNS);
|
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gtk_object_add_arg_type ("GtkTextView::pixels_above_lines", GTK_TYPE_INT,
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GTK_ARG_READWRITE, ARG_PIXELS_ABOVE_LINES);
|
|
gtk_object_add_arg_type ("GtkTextView::pixels_below_lines", GTK_TYPE_INT,
|
|
GTK_ARG_READWRITE, ARG_PIXELS_BELOW_LINES);
|
|
gtk_object_add_arg_type ("GtkTextView::pixels_inside_wrap", GTK_TYPE_INT,
|
|
GTK_ARG_READWRITE, ARG_PIXELS_INSIDE_WRAP);
|
|
gtk_object_add_arg_type ("GtkTextView::editable", GTK_TYPE_BOOL,
|
|
GTK_ARG_READWRITE, ARG_EDITABLE);
|
|
gtk_object_add_arg_type ("GtkTextView::wrap_mode", GTK_TYPE_ENUM,
|
|
GTK_ARG_READWRITE, ARG_WRAP_MODE);
|
|
|
|
|
|
/*
|
|
* Signals
|
|
*/
|
|
|
|
signals[MOVE_CURSOR] =
|
|
gtk_signal_new ("move_cursor",
|
|
GTK_RUN_LAST | GTK_RUN_ACTION,
|
|
GTK_CLASS_TYPE (object_class),
|
|
GTK_SIGNAL_OFFSET (GtkTextViewClass, move_cursor),
|
|
gtk_marshal_VOID__ENUM_INT_BOOLEAN,
|
|
GTK_TYPE_NONE, 3, GTK_TYPE_MOVEMENT_STEP, GTK_TYPE_INT, GTK_TYPE_BOOL);
|
|
|
|
signals[SET_ANCHOR] =
|
|
gtk_signal_new ("set_anchor",
|
|
GTK_RUN_LAST | GTK_RUN_ACTION,
|
|
GTK_CLASS_TYPE (object_class),
|
|
GTK_SIGNAL_OFFSET (GtkTextViewClass, set_anchor),
|
|
gtk_marshal_VOID__VOID,
|
|
GTK_TYPE_NONE, 0);
|
|
|
|
signals[INSERT_AT_CURSOR] =
|
|
gtk_signal_new ("insert_at_cursor",
|
|
GTK_RUN_LAST | GTK_RUN_ACTION,
|
|
GTK_CLASS_TYPE (object_class),
|
|
GTK_SIGNAL_OFFSET (GtkTextViewClass, insert_at_cursor),
|
|
gtk_marshal_VOID__POINTER,
|
|
GTK_TYPE_NONE, 1, GTK_TYPE_STRING);
|
|
|
|
signals[DELETE_FROM_CURSOR] =
|
|
gtk_signal_new ("delete_from_cursor",
|
|
GTK_RUN_LAST | GTK_RUN_ACTION,
|
|
GTK_CLASS_TYPE (object_class),
|
|
GTK_SIGNAL_OFFSET (GtkTextViewClass, delete_from_cursor),
|
|
gtk_marshal_VOID__ENUM_INT,
|
|
GTK_TYPE_NONE, 2, GTK_TYPE_DELETE_TYPE, GTK_TYPE_INT);
|
|
|
|
signals[CUT_CLIPBOARD] =
|
|
gtk_signal_new ("cut_clipboard",
|
|
GTK_RUN_LAST | GTK_RUN_ACTION,
|
|
GTK_CLASS_TYPE (object_class),
|
|
GTK_SIGNAL_OFFSET (GtkTextViewClass, cut_clipboard),
|
|
gtk_marshal_VOID__VOID,
|
|
GTK_TYPE_NONE, 0);
|
|
|
|
signals[COPY_CLIPBOARD] =
|
|
gtk_signal_new ("copy_clipboard",
|
|
GTK_RUN_LAST | GTK_RUN_ACTION,
|
|
GTK_CLASS_TYPE (object_class),
|
|
GTK_SIGNAL_OFFSET (GtkTextViewClass, copy_clipboard),
|
|
gtk_marshal_VOID__VOID,
|
|
GTK_TYPE_NONE, 0);
|
|
|
|
signals[PASTE_CLIPBOARD] =
|
|
gtk_signal_new ("paste_clipboard",
|
|
GTK_RUN_LAST | GTK_RUN_ACTION,
|
|
GTK_CLASS_TYPE (object_class),
|
|
GTK_SIGNAL_OFFSET (GtkTextViewClass, paste_clipboard),
|
|
gtk_marshal_VOID__VOID,
|
|
GTK_TYPE_NONE, 0);
|
|
|
|
signals[TOGGLE_OVERWRITE] =
|
|
gtk_signal_new ("toggle_overwrite",
|
|
GTK_RUN_LAST | GTK_RUN_ACTION,
|
|
GTK_CLASS_TYPE (object_class),
|
|
GTK_SIGNAL_OFFSET (GtkTextViewClass, toggle_overwrite),
|
|
gtk_marshal_VOID__VOID,
|
|
GTK_TYPE_NONE, 0);
|
|
|
|
signals[SET_SCROLL_ADJUSTMENTS] = widget_class->set_scroll_adjustments_signal =
|
|
gtk_signal_new ("set_scroll_adjustments",
|
|
GTK_RUN_LAST,
|
|
GTK_CLASS_TYPE (object_class),
|
|
GTK_SIGNAL_OFFSET (GtkTextViewClass, set_scroll_adjustments),
|
|
gtk_marshal_VOID__POINTER_POINTER,
|
|
GTK_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
|
|
|
|
gtk_object_class_add_signals (object_class, signals, LAST_SIGNAL);
|
|
|
|
/*
|
|
* Key bindings
|
|
*/
|
|
|
|
binding_set = gtk_binding_set_by_class (klass);
|
|
|
|
/* Moving the insertion point */
|
|
add_move_binding (binding_set, GDK_Right, 0,
|
|
GTK_MOVEMENT_POSITIONS, 1);
|
|
|
|
add_move_binding (binding_set, GDK_Left, 0,
|
|
GTK_MOVEMENT_POSITIONS, -1);
|
|
|
|
add_move_binding (binding_set, GDK_f, GDK_CONTROL_MASK,
|
|
GTK_MOVEMENT_CHARS, 1);
|
|
|
|
add_move_binding (binding_set, GDK_b, GDK_CONTROL_MASK,
|
|
GTK_MOVEMENT_CHARS, -1);
|
|
|
|
add_move_binding (binding_set, GDK_Right, GDK_CONTROL_MASK,
|
|
GTK_MOVEMENT_WORDS, 1);
|
|
|
|
add_move_binding (binding_set, GDK_Left, GDK_CONTROL_MASK,
|
|
GTK_MOVEMENT_WORDS, -1);
|
|
|
|
/* Eventually we want to move by display lines, not paragraphs */
|
|
add_move_binding (binding_set, GDK_Up, 0,
|
|
GTK_MOVEMENT_DISPLAY_LINES, -1);
|
|
|
|
add_move_binding (binding_set, GDK_Down, 0,
|
|
GTK_MOVEMENT_DISPLAY_LINES, 1);
|
|
|
|
add_move_binding (binding_set, GDK_p, GDK_CONTROL_MASK,
|
|
GTK_MOVEMENT_DISPLAY_LINES, -1);
|
|
|
|
add_move_binding (binding_set, GDK_n, GDK_CONTROL_MASK,
|
|
GTK_MOVEMENT_DISPLAY_LINES, 1);
|
|
|
|
add_move_binding (binding_set, GDK_a, GDK_CONTROL_MASK,
|
|
GTK_MOVEMENT_PARAGRAPH_ENDS, -1);
|
|
|
|
add_move_binding (binding_set, GDK_e, GDK_CONTROL_MASK,
|
|
GTK_MOVEMENT_PARAGRAPH_ENDS, 1);
|
|
|
|
add_move_binding (binding_set, GDK_f, GDK_MOD1_MASK,
|
|
GTK_MOVEMENT_WORDS, 1);
|
|
|
|
add_move_binding (binding_set, GDK_b, GDK_MOD1_MASK,
|
|
GTK_MOVEMENT_WORDS, -1);
|
|
|
|
add_move_binding (binding_set, GDK_Home, 0,
|
|
GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
|
|
|
|
add_move_binding (binding_set, GDK_End, 0,
|
|
GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
|
|
|
|
add_move_binding (binding_set, GDK_Home, GDK_CONTROL_MASK,
|
|
GTK_MOVEMENT_BUFFER_ENDS, -1);
|
|
|
|
add_move_binding (binding_set, GDK_End, GDK_CONTROL_MASK,
|
|
GTK_MOVEMENT_BUFFER_ENDS, 1);
|
|
|
|
add_move_binding (binding_set, GDK_Page_Up, 0,
|
|
GTK_MOVEMENT_PAGES, -1);
|
|
|
|
add_move_binding (binding_set, GDK_Page_Down, 0,
|
|
GTK_MOVEMENT_PAGES, 1);
|
|
|
|
|
|
/* Setting the cut/paste/copy anchor */
|
|
gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_CONTROL_MASK,
|
|
"set_anchor", 0);
|
|
|
|
/* Deleting text */
|
|
gtk_binding_entry_add_signal (binding_set, GDK_Delete, 0,
|
|
"delete_from_cursor", 2,
|
|
GTK_TYPE_ENUM, GTK_DELETE_CHARS,
|
|
GTK_TYPE_INT, 1);
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_d, GDK_CONTROL_MASK,
|
|
"delete_from_cursor", 2,
|
|
GTK_TYPE_ENUM, GTK_DELETE_CHARS,
|
|
GTK_TYPE_INT, 1);
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, 0,
|
|
"delete_from_cursor", 2,
|
|
GTK_TYPE_ENUM, GTK_DELETE_CHARS,
|
|
GTK_TYPE_INT, -1);
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_Delete, GDK_CONTROL_MASK,
|
|
"delete_from_cursor", 2,
|
|
GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
|
|
GTK_TYPE_INT, 1);
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_d, GDK_MOD1_MASK,
|
|
"delete_from_cursor", 2,
|
|
GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
|
|
GTK_TYPE_INT, 1);
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, GDK_CONTROL_MASK,
|
|
"delete_from_cursor", 2,
|
|
GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
|
|
GTK_TYPE_INT, -1);
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_k, GDK_CONTROL_MASK,
|
|
"delete_from_cursor", 2,
|
|
GTK_TYPE_ENUM, GTK_DELETE_PARAGRAPH_ENDS,
|
|
GTK_TYPE_INT, 1);
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_u, GDK_CONTROL_MASK,
|
|
"delete_from_cursor", 2,
|
|
GTK_TYPE_ENUM, GTK_DELETE_PARAGRAPHS,
|
|
GTK_TYPE_INT, 1);
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_MOD1_MASK,
|
|
"delete_from_cursor", 2,
|
|
GTK_TYPE_ENUM, GTK_DELETE_WHITESPACE,
|
|
GTK_TYPE_INT, 1);
|
|
gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_MOD1_MASK,
|
|
"insert_at_cursor", 1,
|
|
GTK_TYPE_STRING, " ");
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_backslash, GDK_MOD1_MASK,
|
|
"delete_from_cursor", 2,
|
|
GTK_TYPE_ENUM, GTK_DELETE_WHITESPACE,
|
|
GTK_TYPE_INT, 1);
|
|
|
|
/* Cut/copy/paste */
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_x, GDK_CONTROL_MASK,
|
|
"cut_clipboard", 0);
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_w, GDK_CONTROL_MASK,
|
|
"cut_clipboard", 0);
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_c, GDK_CONTROL_MASK,
|
|
"copy_clipboard", 0);
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_v, GDK_CONTROL_MASK,
|
|
"paste_clipboard", 0);
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_y, GDK_CONTROL_MASK,
|
|
"paste_clipboard", 0);
|
|
|
|
/* Overwrite */
|
|
gtk_binding_entry_add_signal (binding_set, GDK_Insert, 0,
|
|
"toggle_overwrite", 0);
|
|
|
|
/*
|
|
* Default handlers and virtual methods
|
|
*/
|
|
object_class->set_arg = gtk_text_view_set_arg;
|
|
object_class->get_arg = gtk_text_view_get_arg;
|
|
|
|
object_class->destroy = gtk_text_view_destroy;
|
|
gobject_class->finalize = gtk_text_view_finalize;
|
|
|
|
widget_class->realize = gtk_text_view_realize;
|
|
widget_class->unrealize = gtk_text_view_unrealize;
|
|
widget_class->style_set = gtk_text_view_style_set;
|
|
widget_class->direction_changed = gtk_text_view_direction_changed;
|
|
widget_class->size_request = gtk_text_view_size_request;
|
|
widget_class->size_allocate = gtk_text_view_size_allocate;
|
|
widget_class->event = gtk_text_view_event;
|
|
widget_class->key_press_event = gtk_text_view_key_press_event;
|
|
widget_class->key_release_event = gtk_text_view_key_release_event;
|
|
widget_class->button_press_event = gtk_text_view_button_press_event;
|
|
widget_class->button_release_event = gtk_text_view_button_release_event;
|
|
widget_class->focus_in_event = gtk_text_view_focus_in_event;
|
|
widget_class->focus_out_event = gtk_text_view_focus_out_event;
|
|
widget_class->motion_notify_event = gtk_text_view_motion_event;
|
|
widget_class->expose_event = gtk_text_view_expose_event;
|
|
widget_class->draw = gtk_text_view_draw;
|
|
widget_class->draw_focus = gtk_text_view_draw_focus;
|
|
|
|
widget_class->drag_begin = gtk_text_view_drag_begin;
|
|
widget_class->drag_end = gtk_text_view_drag_end;
|
|
widget_class->drag_data_get = gtk_text_view_drag_data_get;
|
|
widget_class->drag_data_delete = gtk_text_view_drag_data_delete;
|
|
|
|
widget_class->drag_leave = gtk_text_view_drag_leave;
|
|
widget_class->drag_motion = gtk_text_view_drag_motion;
|
|
widget_class->drag_drop = gtk_text_view_drag_drop;
|
|
widget_class->drag_data_received = gtk_text_view_drag_data_received;
|
|
|
|
container_class->add = gtk_text_view_add;
|
|
container_class->remove = gtk_text_view_remove;
|
|
container_class->forall = gtk_text_view_forall;
|
|
|
|
klass->move_cursor = gtk_text_view_move_cursor;
|
|
klass->set_anchor = gtk_text_view_set_anchor;
|
|
klass->insert_at_cursor = gtk_text_view_insert_at_cursor;
|
|
klass->delete_from_cursor = gtk_text_view_delete_from_cursor;
|
|
klass->cut_clipboard = gtk_text_view_cut_clipboard;
|
|
klass->copy_clipboard = gtk_text_view_copy_clipboard;
|
|
klass->paste_clipboard = gtk_text_view_paste_clipboard;
|
|
klass->toggle_overwrite = gtk_text_view_toggle_overwrite;
|
|
klass->set_scroll_adjustments = gtk_text_view_set_scroll_adjustments;
|
|
}
|
|
|
|
void
|
|
gtk_text_view_init (GtkTextView *text_view)
|
|
{
|
|
GtkWidget *widget;
|
|
|
|
widget = GTK_WIDGET (text_view);
|
|
|
|
GTK_WIDGET_SET_FLAGS (widget, GTK_CAN_FOCUS);
|
|
|
|
text_view->wrap_mode = GTK_WRAPMODE_NONE;
|
|
|
|
gtk_drag_dest_set (widget,
|
|
GTK_DEST_DEFAULT_DROP,
|
|
target_table, G_N_ELEMENTS (target_table),
|
|
GDK_ACTION_COPY | GDK_ACTION_MOVE);
|
|
|
|
text_view->virtual_cursor_x = -1;
|
|
text_view->virtual_cursor_y = -1;
|
|
|
|
/* This object is completely private. No external entity can gain a reference
|
|
* to it; so we create it here and destroy it in finalize ().
|
|
*/
|
|
text_view->im_context = gtk_im_multicontext_new ();
|
|
|
|
gtk_signal_connect (GTK_OBJECT (text_view->im_context), "commit",
|
|
GTK_SIGNAL_FUNC (gtk_text_view_commit_handler), text_view);
|
|
|
|
gtk_signal_connect (GTK_OBJECT (text_view->im_context), "preedit_changed",
|
|
GTK_SIGNAL_FUNC (gtk_text_view_preedit_changed_handler), text_view);
|
|
|
|
text_view->editable = TRUE;
|
|
text_view->cursor_visible = TRUE;
|
|
|
|
text_view->text_window = text_window_new (GTK_TEXT_WINDOW_TEXT,
|
|
widget, 200, 200);
|
|
|
|
text_view->drag_start_x = -1;
|
|
text_view->drag_start_y = -1;
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_new:
|
|
*
|
|
* Creates a new #GtkTextView. If you don't call gtk_text_view_set_buffer()
|
|
* before using the text view, an empty default buffer will be created
|
|
* for you. Get the buffer with gtk_text_view_get_buffer(). If you want
|
|
* to specify your own buffer, consider gtk_text_view_new_with_buffer().
|
|
*
|
|
* Return value: a new #GtkTextView
|
|
**/
|
|
GtkWidget*
|
|
gtk_text_view_new (void)
|
|
{
|
|
return GTK_WIDGET (gtk_type_new (gtk_text_view_get_type ()));
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_new_with_buffer:
|
|
* @buffer: a #GtkTextBuffer
|
|
*
|
|
* Creates a new #GtkTextView widget displaying the buffer
|
|
* @buffer. One buffer can be shared among many widgets.
|
|
* @buffer may be NULL to create a default buffer, in which case
|
|
* this function is equivalent to gtk_text_view_new(). The
|
|
* text view adds its own reference count to the buffer; it does not
|
|
* take over an existing reference.
|
|
*
|
|
* Return value: a new #GtkTextView.
|
|
**/
|
|
GtkWidget*
|
|
gtk_text_view_new_with_buffer (GtkTextBuffer *buffer)
|
|
{
|
|
GtkTextView *text_view;
|
|
|
|
text_view = (GtkTextView*)gtk_text_view_new ();
|
|
|
|
gtk_text_view_set_buffer (text_view, buffer);
|
|
|
|
return GTK_WIDGET (text_view);
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_set_buffer:
|
|
* @text_view: a #GtkTextView
|
|
* @buffer: a #GtkTextBuffer
|
|
*
|
|
* Sets @buffer as the buffer being displayed by @text_view. The previous
|
|
* buffer displayed by the text view is unreferenced, and a reference is
|
|
* added to @buffer. If you owned a reference to @buffer before passing it
|
|
* to this function, you must remove that reference yourself; #GtkTextView
|
|
* will not "adopt" it.
|
|
*
|
|
**/
|
|
void
|
|
gtk_text_view_set_buffer (GtkTextView *text_view,
|
|
GtkTextBuffer *buffer)
|
|
{
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
|
|
g_return_if_fail (buffer == NULL || GTK_IS_TEXT_BUFFER (buffer));
|
|
|
|
if (text_view->buffer == buffer)
|
|
return;
|
|
|
|
if (text_view->buffer != NULL)
|
|
{
|
|
/* Destroy all anchored children */
|
|
GSList *tmp_list;
|
|
GSList *copy;
|
|
|
|
copy = g_slist_copy (text_view->children);
|
|
tmp_list = copy;
|
|
while (tmp_list != NULL)
|
|
{
|
|
GtkTextViewChild *vc = tmp_list->data;
|
|
|
|
if (vc->anchor)
|
|
{
|
|
gtk_widget_destroy (vc->widget);
|
|
/* vc may now be invalid! */
|
|
}
|
|
|
|
tmp_list = g_slist_next (tmp_list);
|
|
}
|
|
|
|
g_slist_free (copy);
|
|
|
|
gtk_signal_disconnect_by_func (GTK_OBJECT (text_view->buffer),
|
|
gtk_text_view_mark_set_handler, text_view);
|
|
gtk_object_unref (GTK_OBJECT (text_view->buffer));
|
|
text_view->dnd_mark = NULL;
|
|
}
|
|
|
|
text_view->buffer = buffer;
|
|
|
|
if (buffer != NULL)
|
|
{
|
|
GtkTextIter start;
|
|
|
|
gtk_object_ref (GTK_OBJECT (buffer));
|
|
gtk_object_sink (GTK_OBJECT (buffer));
|
|
|
|
if (text_view->layout)
|
|
gtk_text_layout_set_buffer (text_view->layout, buffer);
|
|
|
|
gtk_text_buffer_get_iter_at_offset (text_view->buffer, &start, 0);
|
|
|
|
text_view->dnd_mark = gtk_text_buffer_create_mark (text_view->buffer,
|
|
"gtk_drag_target",
|
|
&start, FALSE);
|
|
|
|
text_view->first_para_mark = gtk_text_buffer_create_mark (text_view->buffer,
|
|
NULL,
|
|
&start, TRUE);
|
|
|
|
text_view->first_para_pixels = 0;
|
|
|
|
gtk_signal_connect (GTK_OBJECT (text_view->buffer), "mark_set",
|
|
gtk_text_view_mark_set_handler, text_view);
|
|
}
|
|
|
|
if (GTK_WIDGET_VISIBLE (text_view))
|
|
gtk_widget_queue_draw (GTK_WIDGET (text_view));
|
|
}
|
|
|
|
static GtkTextBuffer*
|
|
get_buffer (GtkTextView *text_view)
|
|
{
|
|
if (text_view->buffer == NULL)
|
|
{
|
|
GtkTextBuffer *b;
|
|
b = gtk_text_buffer_new (NULL);
|
|
gtk_text_view_set_buffer (text_view, b);
|
|
g_object_unref (G_OBJECT (b));
|
|
}
|
|
|
|
return text_view->buffer;
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_get_buffer:
|
|
* @text_view: a #GtkTextView
|
|
*
|
|
* Returns the #GtkTextBuffer being displayed by this text view.
|
|
* The reference count on the buffer is not incremented; the caller
|
|
* of this function won't own a new reference.
|
|
*
|
|
* Return value: a #GtkTextBuffer
|
|
**/
|
|
GtkTextBuffer*
|
|
gtk_text_view_get_buffer (GtkTextView *text_view)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
|
|
|
|
return get_buffer (text_view);
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_get_iter_at_location:
|
|
* @text_view: a #GtkTextView
|
|
* @iter: a #GtkTextIter
|
|
* @x: x position, in buffer coordinates
|
|
* @y: y position, in buffer coordinates
|
|
*
|
|
* Retrieves the iterator at buffer coordinates @x and @y. Buffer
|
|
* coordinates are coordinates for the entire buffer, not just the
|
|
* currently-displayed portion. If you have coordinates from an
|
|
* event, you have to convert those to buffer coordinates with
|
|
* gtk_text_view_window_to_buffer_coords().
|
|
*
|
|
**/
|
|
void
|
|
gtk_text_view_get_iter_at_location (GtkTextView *text_view,
|
|
GtkTextIter *iter,
|
|
gint x,
|
|
gint y)
|
|
{
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
|
|
g_return_if_fail (iter != NULL);
|
|
g_return_if_fail (text_view->layout != NULL);
|
|
|
|
gtk_text_layout_get_iter_at_pixel (text_view->layout,
|
|
iter,
|
|
x,
|
|
y);
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_get_iter_location:
|
|
* @text_view: a #GtkTextView
|
|
* @iter: a #GtkTextIter
|
|
* @location: bounds of the character at @iter
|
|
*
|
|
* Gets a rectangle which roughly contains the character at @iter.
|
|
* The rectangle position is in buffer coordinates; use
|
|
* gtk_text_view_buffer_to_window_coords() to convert these
|
|
* coordinates to coordinates for one of the windows in the text view.
|
|
*
|
|
**/
|
|
void
|
|
gtk_text_view_get_iter_location (GtkTextView *text_view,
|
|
const GtkTextIter *iter,
|
|
GdkRectangle *location)
|
|
{
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
|
|
g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
|
|
|
|
gtk_text_layout_get_iter_location (text_view->layout, iter, location);
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_get_line_yrange:
|
|
* @text_view: a #GtkTextView
|
|
* @iter: a #GtkTextIter
|
|
* @y: return location for a y coordinate
|
|
* @height: return location for a height
|
|
*
|
|
* Gets the y coordinate of the top of the line containing @iter,
|
|
* and the height of the line. The coordinate is a buffer coordinate;
|
|
* convert to window coordinates with gtk_text_view_buffer_to_window_coords().
|
|
*
|
|
**/
|
|
void
|
|
gtk_text_view_get_line_yrange (GtkTextView *text_view,
|
|
const GtkTextIter *iter,
|
|
gint *y,
|
|
gint *height)
|
|
{
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
|
|
g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
|
|
|
|
gtk_text_layout_get_line_yrange (text_view->layout,
|
|
iter,
|
|
y,
|
|
height);
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_get_line_at_y:
|
|
* @text_view: a #GtkTextView
|
|
* @target_iter: a #GtkTextIter
|
|
* @y: a y coordinate
|
|
* @line_top: return location for top coordinate of the line
|
|
*
|
|
* Gets the #GtkTextIter at the start of the line containing
|
|
* the coordinate @y. @y is in buffer coordinates, convert from
|
|
* window coordinates with gtk_text_view_window_to_buffer_coords().
|
|
* If non-%NULL, @line_top will be filled with the coordinate of the top
|
|
* edge of the line.
|
|
**/
|
|
void
|
|
gtk_text_view_get_line_at_y (GtkTextView *text_view,
|
|
GtkTextIter *target_iter,
|
|
gint y,
|
|
gint *line_top)
|
|
{
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
|
|
|
|
gtk_text_layout_get_line_at_y (text_view->layout,
|
|
target_iter,
|
|
y,
|
|
line_top);
|
|
}
|
|
|
|
static void
|
|
set_adjustment_clamped (GtkAdjustment *adj, gfloat val)
|
|
{
|
|
/* We don't really want to clamp to upper; we want to clamp to
|
|
upper - page_size which is the highest value the scrollbar
|
|
will let us reach. */
|
|
if (val > (adj->upper - adj->page_size))
|
|
val = adj->upper - adj->page_size;
|
|
|
|
if (val < adj->lower)
|
|
val = adj->lower;
|
|
|
|
gtk_adjustment_set_value (adj, val);
|
|
}
|
|
|
|
static gboolean
|
|
gtk_text_view_scroll_to_mark_adjusted (GtkTextView *text_view,
|
|
GtkTextMark *mark,
|
|
gint margin,
|
|
gfloat percentage)
|
|
{
|
|
GtkTextIter iter;
|
|
GdkRectangle rect;
|
|
GdkRectangle screen;
|
|
gint screen_bottom;
|
|
gint screen_right;
|
|
GtkWidget *widget;
|
|
gboolean retval = FALSE;
|
|
gint scroll_inc;
|
|
|
|
gint current_x_scroll, current_y_scroll;
|
|
|
|
g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
|
|
g_return_val_if_fail (mark != NULL, FALSE);
|
|
|
|
widget = GTK_WIDGET (text_view);
|
|
|
|
if (!GTK_WIDGET_MAPPED (widget))
|
|
{
|
|
g_warning ("FIXME need to implement scroll_to_mark for unmapped GtkTextView?");
|
|
return FALSE;
|
|
}
|
|
|
|
gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark);
|
|
|
|
gtk_text_layout_get_iter_location (text_view->layout,
|
|
&iter,
|
|
&rect);
|
|
|
|
/* Be sure the scroll region is up-to-date */
|
|
gtk_text_view_scroll_calc_now (text_view);
|
|
|
|
current_x_scroll = text_view->xoffset;
|
|
current_y_scroll = text_view->yoffset;
|
|
|
|
screen.x = current_x_scroll;
|
|
screen.y = current_y_scroll;
|
|
screen.width = SCREEN_WIDTH (widget);
|
|
screen.height = SCREEN_HEIGHT (widget);
|
|
|
|
{
|
|
/* Clamp margin so it's not too large. */
|
|
gint small_dimension = MIN (screen.width, screen.height);
|
|
gint max_rect_dim;
|
|
|
|
if (margin > (small_dimension/2 - 5)) /* 5 is arbitrary */
|
|
margin = (small_dimension/2 - 5);
|
|
|
|
if (margin < 0)
|
|
margin = 0;
|
|
|
|
/* make sure rectangle fits in the leftover space */
|
|
|
|
max_rect_dim = MAX (rect.width, rect.height);
|
|
|
|
if (max_rect_dim > (small_dimension - margin*2))
|
|
margin -= max_rect_dim - (small_dimension - margin*2);
|
|
|
|
if (margin < 0)
|
|
margin = 0;
|
|
}
|
|
|
|
g_assert (margin >= 0);
|
|
|
|
screen.x += margin;
|
|
screen.y += margin;
|
|
|
|
screen.width -= margin*2;
|
|
screen.height -= margin*2;
|
|
|
|
screen_bottom = screen.y + screen.height;
|
|
screen_right = screen.x + screen.width;
|
|
|
|
/* Vertical scroll (only vertical gets adjusted) */
|
|
|
|
scroll_inc = 0;
|
|
if (rect.y < screen.y)
|
|
{
|
|
gint scroll_dest = rect.y;
|
|
scroll_inc = (scroll_dest - screen.y) * percentage;
|
|
}
|
|
else if ((rect.y + rect.height) > screen_bottom)
|
|
{
|
|
gint scroll_dest = rect.y + rect.height;
|
|
scroll_inc = (scroll_dest - screen_bottom) * percentage;
|
|
}
|
|
|
|
if (scroll_inc != 0)
|
|
{
|
|
set_adjustment_clamped (get_vadjustment (text_view),
|
|
current_y_scroll + scroll_inc);
|
|
retval = TRUE;
|
|
}
|
|
|
|
/* Horizontal scroll */
|
|
|
|
scroll_inc = 0;
|
|
if (rect.x < screen.x)
|
|
{
|
|
gint scroll_dest = rect.x;
|
|
scroll_inc = scroll_dest - screen.x;
|
|
}
|
|
else if ((rect.x + rect.width) > screen_right)
|
|
{
|
|
gint scroll_dest = rect.x + rect.width;
|
|
scroll_inc = scroll_dest - screen_right;
|
|
}
|
|
|
|
if (scroll_inc != 0)
|
|
{
|
|
set_adjustment_clamped (get_hadjustment (text_view),
|
|
current_x_scroll + scroll_inc);
|
|
retval = TRUE;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_scroll_to_mark:
|
|
* @text_view: a #GtkTextView
|
|
* @mark: a #GtkTextMark
|
|
* @mark_within_margin: a margin
|
|
*
|
|
* Scrolls @text_view so that @mark is on the screen. If
|
|
* @mark_within_margin is nonzero, the mark will be moved onscreen by
|
|
* that many pixels. For example, if @mark_within_margin is 5, the
|
|
* mark will be at least 5 pixels away from the edge of the screen,
|
|
* if possible.
|
|
*
|
|
* Return value: TRUE if scrolling occurred
|
|
**/
|
|
gboolean
|
|
gtk_text_view_scroll_to_mark (GtkTextView *text_view,
|
|
GtkTextMark *mark,
|
|
gint mark_within_margin)
|
|
{
|
|
g_return_val_if_fail (mark_within_margin >= 0, FALSE);
|
|
|
|
return gtk_text_view_scroll_to_mark_adjusted (text_view, mark,
|
|
mark_within_margin, 1.0);
|
|
}
|
|
|
|
static gboolean
|
|
clamp_iter_onscreen (GtkTextView *text_view, GtkTextIter *iter)
|
|
{
|
|
GdkRectangle visible_rect;
|
|
gtk_text_view_get_visible_rect (text_view, &visible_rect);
|
|
|
|
return gtk_text_layout_clamp_iter_to_vrange (text_view->layout, iter,
|
|
visible_rect.y,
|
|
visible_rect.y + visible_rect.height);
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_move_mark_onscreen:
|
|
* @text_view: a #GtkTextView
|
|
* @mark: a #GtkTextMark
|
|
*
|
|
* Moves a mark within the buffer so that it's
|
|
* located within the currently-visible text area.
|
|
*
|
|
* Return value: %TRUE if scrolling occurred
|
|
**/
|
|
gboolean
|
|
gtk_text_view_move_mark_onscreen (GtkTextView *text_view,
|
|
GtkTextMark *mark)
|
|
{
|
|
GtkTextIter iter;
|
|
|
|
g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
|
|
g_return_val_if_fail (mark != NULL, FALSE);
|
|
|
|
gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark);
|
|
|
|
if (clamp_iter_onscreen (text_view, &iter))
|
|
{
|
|
gtk_text_buffer_move_mark (get_buffer (text_view), mark, &iter);
|
|
return TRUE;
|
|
}
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_get_visible_rect:
|
|
* @text_view: a #GtkTextView
|
|
* @visible_rect: rectangle to fill
|
|
*
|
|
* Fills @visible_rect with the currently-visible
|
|
* region of the buffer, in buffer coordinates. Convert to window coordinates
|
|
* with gtk_text_view_buffer_to_window_coords().
|
|
**/
|
|
void
|
|
gtk_text_view_get_visible_rect (GtkTextView *text_view,
|
|
GdkRectangle *visible_rect)
|
|
{
|
|
GtkWidget *widget;
|
|
|
|
g_return_if_fail (text_view != NULL);
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
|
|
|
|
widget = GTK_WIDGET (text_view);
|
|
|
|
if (visible_rect)
|
|
{
|
|
visible_rect->x = text_view->xoffset;
|
|
visible_rect->y = text_view->yoffset;
|
|
visible_rect->width = SCREEN_WIDTH (widget);
|
|
visible_rect->height = SCREEN_HEIGHT (widget);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_set_wrap_mode:
|
|
* @text_view: a #GtkTextView
|
|
* @wrap_mode: a #GtkWrapMode
|
|
*
|
|
* Sets the line wrapping for the view.
|
|
**/
|
|
void
|
|
gtk_text_view_set_wrap_mode (GtkTextView *text_view,
|
|
GtkWrapMode wrap_mode)
|
|
{
|
|
g_return_if_fail (text_view != NULL);
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
|
|
|
|
if (text_view->wrap_mode != wrap_mode)
|
|
{
|
|
text_view->wrap_mode = wrap_mode;
|
|
|
|
if (text_view->layout)
|
|
{
|
|
text_view->layout->default_style->wrap_mode = wrap_mode;
|
|
gtk_text_layout_default_style_changed (text_view->layout);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_get_wrap_mode:
|
|
* @text_view: a #GtkTextView
|
|
*
|
|
* Gets the line wrapping for the view.
|
|
*
|
|
* Return value: the line wrap setting
|
|
**/
|
|
GtkWrapMode
|
|
gtk_text_view_get_wrap_mode (GtkTextView *text_view)
|
|
{
|
|
g_return_val_if_fail (text_view != NULL, GTK_WRAPMODE_NONE);
|
|
g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_WRAPMODE_NONE);
|
|
|
|
return text_view->wrap_mode;
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_set_editable:
|
|
* @text_view: a #GtkTextView
|
|
* @setting: whether it's editable
|
|
*
|
|
* Sets the default editability of the #GtkTextView. You can override
|
|
* this default setting with tags in the buffer, using the "editable"
|
|
* attribute of tags.
|
|
**/
|
|
void
|
|
gtk_text_view_set_editable (GtkTextView *text_view,
|
|
gboolean setting)
|
|
{
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
|
|
|
|
if (text_view->editable != setting)
|
|
{
|
|
text_view->editable = setting;
|
|
|
|
if (text_view->layout)
|
|
{
|
|
text_view->layout->default_style->editable = text_view->editable;
|
|
gtk_text_layout_default_style_changed (text_view->layout);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_get_editable:
|
|
* @text_view: a #GtkTextView
|
|
*
|
|
* Returns the default editability of the #GtkTextView. Tags in the
|
|
* buffer may override this setting for some ranges of text.
|
|
*
|
|
* Return value: whether text is editable by default
|
|
**/
|
|
gboolean
|
|
gtk_text_view_get_editable (GtkTextView *text_view)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
|
|
|
|
return text_view->editable;
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_set_cursor_visible:
|
|
* @text_view: a #GtkTextView
|
|
* @setting: whether to show the insertion cursor
|
|
*
|
|
* Toggles whether the insertion point is displayed. A buffer with no editable
|
|
* text probably shouldn't have a visible cursor, so you may want to turn
|
|
* the cursor off.
|
|
**/
|
|
void
|
|
gtk_text_view_set_cursor_visible (GtkTextView *text_view,
|
|
gboolean setting)
|
|
{
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
|
|
|
|
setting = (setting != FALSE);
|
|
|
|
if (text_view->cursor_visible != setting)
|
|
{
|
|
text_view->cursor_visible = setting;
|
|
|
|
if (GTK_WIDGET_HAS_FOCUS (text_view))
|
|
{
|
|
if (text_view->layout)
|
|
{
|
|
gtk_text_layout_set_cursor_visible (text_view->layout, setting);
|
|
|
|
if (setting)
|
|
gtk_text_view_start_cursor_blink (text_view);
|
|
else
|
|
gtk_text_view_stop_cursor_blink (text_view);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_get_cursor_visible:
|
|
* @text_view: a #GtkTextView
|
|
*
|
|
* Find out whether the cursor is being displayed.
|
|
*
|
|
* Return value: whether the insertion mark is visible
|
|
**/
|
|
gboolean
|
|
gtk_text_view_get_cursor_visible (GtkTextView *text_view)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
|
|
|
|
return text_view->cursor_visible;
|
|
}
|
|
|
|
|
|
/**
|
|
* gtk_text_view_place_cursor_onscreen:
|
|
* @text_view: a #GtkTextView
|
|
*
|
|
* Moves the cursor to the currently visible region of the
|
|
* buffer, it it isn't there already.
|
|
*
|
|
* Return value: TRUE if the cursor had to be moved.
|
|
**/
|
|
gboolean
|
|
gtk_text_view_place_cursor_onscreen (GtkTextView *text_view)
|
|
{
|
|
GtkTextIter insert;
|
|
|
|
g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
|
|
|
|
gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
|
|
gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"insert"));
|
|
|
|
if (clamp_iter_onscreen (text_view, &insert))
|
|
{
|
|
gtk_text_buffer_place_cursor (get_buffer (text_view), &insert);
|
|
return TRUE;
|
|
}
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_destroy (GtkObject *object)
|
|
{
|
|
GtkTextView *text_view;
|
|
|
|
text_view = GTK_TEXT_VIEW (object);
|
|
|
|
gtk_text_view_destroy_layout (text_view);
|
|
gtk_text_view_set_buffer (text_view, NULL);
|
|
|
|
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_finalize (GObject *object)
|
|
{
|
|
GtkTextView *text_view;
|
|
|
|
text_view = GTK_TEXT_VIEW (object);
|
|
|
|
g_return_if_fail (text_view->buffer == NULL);
|
|
|
|
if (text_view->hadjustment)
|
|
gtk_object_unref (GTK_OBJECT (text_view->hadjustment));
|
|
if (text_view->vadjustment)
|
|
gtk_object_unref (GTK_OBJECT (text_view->vadjustment));
|
|
|
|
text_window_free (text_view->text_window);
|
|
|
|
if (text_view->left_window)
|
|
text_window_free (text_view->left_window);
|
|
|
|
if (text_view->top_window)
|
|
text_window_free (text_view->top_window);
|
|
|
|
if (text_view->right_window)
|
|
text_window_free (text_view->right_window);
|
|
|
|
if (text_view->bottom_window)
|
|
text_window_free (text_view->bottom_window);
|
|
|
|
gtk_object_unref (GTK_OBJECT (text_view->im_context));
|
|
|
|
(* G_OBJECT_CLASS (parent_class)->finalize) (object);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_set_arg (GtkObject *object, GtkArg *arg, guint arg_id)
|
|
{
|
|
GtkTextView *text_view;
|
|
|
|
text_view = GTK_TEXT_VIEW (object);
|
|
|
|
switch (arg_id)
|
|
{
|
|
case ARG_HEIGHT_LINES:
|
|
break;
|
|
|
|
case ARG_WIDTH_COLUMNS:
|
|
break;
|
|
|
|
case ARG_PIXELS_ABOVE_LINES:
|
|
break;
|
|
|
|
case ARG_PIXELS_BELOW_LINES:
|
|
break;
|
|
|
|
case ARG_PIXELS_INSIDE_WRAP:
|
|
break;
|
|
|
|
case ARG_EDITABLE:
|
|
break;
|
|
|
|
case ARG_WRAP_MODE:
|
|
break;
|
|
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_get_arg (GtkObject *object, GtkArg *arg, guint arg_id)
|
|
{
|
|
GtkTextView *text_view;
|
|
|
|
text_view = GTK_TEXT_VIEW (object);
|
|
|
|
switch (arg_id)
|
|
{
|
|
case ARG_HEIGHT_LINES:
|
|
break;
|
|
|
|
case ARG_WIDTH_COLUMNS:
|
|
break;
|
|
|
|
case ARG_PIXELS_ABOVE_LINES:
|
|
break;
|
|
|
|
case ARG_PIXELS_BELOW_LINES:
|
|
break;
|
|
|
|
case ARG_PIXELS_INSIDE_WRAP:
|
|
break;
|
|
|
|
case ARG_EDITABLE:
|
|
break;
|
|
|
|
case ARG_WRAP_MODE:
|
|
break;
|
|
|
|
default:
|
|
arg->type = GTK_TYPE_INVALID;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_size_request (GtkWidget *widget,
|
|
GtkRequisition *requisition)
|
|
{
|
|
GtkTextView *text_view;
|
|
GSList *tmp_list;
|
|
|
|
text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
requisition->width = text_view->text_window->requisition.width + FOCUS_EDGE_WIDTH * 2;
|
|
requisition->height = text_view->text_window->requisition.height + FOCUS_EDGE_WIDTH * 2;
|
|
|
|
if (text_view->left_window)
|
|
requisition->width += text_view->left_window->requisition.width;
|
|
|
|
if (text_view->right_window)
|
|
requisition->width += text_view->right_window->requisition.width;
|
|
|
|
if (text_view->top_window)
|
|
requisition->height += text_view->top_window->requisition.height;
|
|
|
|
if (text_view->bottom_window)
|
|
requisition->height += text_view->bottom_window->requisition.height;
|
|
|
|
tmp_list = text_view->children;
|
|
while (tmp_list != NULL)
|
|
{
|
|
GtkTextViewChild *child = tmp_list->data;
|
|
|
|
if (child->anchor)
|
|
{
|
|
GtkRequisition child_req;
|
|
GtkRequisition old_req;
|
|
|
|
old_req = child->widget->requisition;
|
|
|
|
gtk_widget_size_request (child->widget, &child_req);
|
|
|
|
if (text_view->layout &&
|
|
(old_req.width != child_req.width ||
|
|
old_req.height != child_req.height))
|
|
gtk_text_child_anchor_queue_resize (child->anchor,
|
|
text_view->layout);
|
|
}
|
|
else
|
|
{
|
|
|
|
}
|
|
|
|
tmp_list = g_slist_next (tmp_list);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_allocate_children (GtkTextView *text_view)
|
|
{
|
|
GSList *tmp_list;
|
|
|
|
return;
|
|
|
|
tmp_list = text_view->children;
|
|
while (tmp_list != NULL)
|
|
{
|
|
GtkTextViewChild *child = tmp_list->data;
|
|
|
|
if (child->anchor)
|
|
{
|
|
/* We need to force-validate the regions containing
|
|
* children.
|
|
*/
|
|
GtkTextIter child_loc;
|
|
gtk_text_buffer_get_iter_at_child_anchor (get_buffer (text_view),
|
|
&child_loc,
|
|
child->anchor);
|
|
|
|
gtk_text_layout_validate_yrange (text_view->layout,
|
|
&child_loc,
|
|
0, 1);
|
|
}
|
|
else
|
|
{
|
|
|
|
}
|
|
|
|
tmp_list = g_slist_next (tmp_list);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_size_allocate (GtkWidget *widget,
|
|
GtkAllocation *allocation)
|
|
{
|
|
GtkTextView *text_view;
|
|
GtkTextIter first_para;
|
|
gint y;
|
|
GtkAdjustment *vadj;
|
|
gboolean yoffset_changed = FALSE;
|
|
gint width, height;
|
|
GdkRectangle text_rect;
|
|
GdkRectangle left_rect;
|
|
GdkRectangle right_rect;
|
|
GdkRectangle top_rect;
|
|
GdkRectangle bottom_rect;
|
|
|
|
text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
widget->allocation = *allocation;
|
|
|
|
if (GTK_WIDGET_REALIZED (widget))
|
|
{
|
|
gdk_window_move_resize (widget->window,
|
|
allocation->x, allocation->y,
|
|
allocation->width, allocation->height);
|
|
}
|
|
|
|
/* distribute width/height among child windows. Ensure all
|
|
* windows get at least a 1x1 allocation.
|
|
*/
|
|
|
|
width = allocation->width - FOCUS_EDGE_WIDTH * 2;
|
|
|
|
if (text_view->left_window)
|
|
left_rect.width = text_view->left_window->requisition.width;
|
|
else
|
|
left_rect.width = 1;
|
|
|
|
width -= left_rect.width;
|
|
|
|
if (text_view->right_window)
|
|
right_rect.width = text_view->right_window->requisition.width;
|
|
else
|
|
right_rect.width = 1;
|
|
|
|
width -= right_rect.width;
|
|
|
|
text_rect.width = MAX (1, width);
|
|
|
|
top_rect.width = text_rect.width;
|
|
bottom_rect.width = text_rect.width;
|
|
|
|
|
|
height = allocation->height - FOCUS_EDGE_WIDTH * 2;
|
|
|
|
if (text_view->top_window)
|
|
top_rect.height = text_view->top_window->requisition.height;
|
|
else
|
|
top_rect.height = 1;
|
|
|
|
height -= top_rect.height;
|
|
|
|
if (text_view->bottom_window)
|
|
bottom_rect.height = text_view->bottom_window->requisition.height;
|
|
else
|
|
bottom_rect.height = 1;
|
|
|
|
height -= bottom_rect.height;
|
|
|
|
text_rect.height = MAX (1, height);
|
|
|
|
left_rect.height = text_rect.height;
|
|
right_rect.height = text_rect.height;
|
|
|
|
/* Origins */
|
|
left_rect.x = FOCUS_EDGE_WIDTH;
|
|
top_rect.y = FOCUS_EDGE_WIDTH;
|
|
|
|
text_rect.x = left_rect.x + left_rect.width;
|
|
text_rect.y = top_rect.y + top_rect.height;
|
|
|
|
left_rect.y = text_rect.y;
|
|
right_rect.y = text_rect.y;
|
|
|
|
top_rect.x = text_rect.x;
|
|
bottom_rect.x = text_rect.x;
|
|
|
|
right_rect.x = text_rect.x + text_rect.width;
|
|
bottom_rect.y = text_rect.y + text_rect.height;
|
|
|
|
text_window_size_allocate (text_view->text_window,
|
|
&text_rect);
|
|
|
|
if (text_view->left_window)
|
|
text_window_size_allocate (text_view->left_window,
|
|
&left_rect);
|
|
|
|
if (text_view->right_window)
|
|
text_window_size_allocate (text_view->right_window,
|
|
&right_rect);
|
|
|
|
if (text_view->top_window)
|
|
text_window_size_allocate (text_view->top_window,
|
|
&top_rect);
|
|
|
|
if (text_view->bottom_window)
|
|
text_window_size_allocate (text_view->bottom_window,
|
|
&bottom_rect);
|
|
|
|
gtk_text_view_ensure_layout (text_view);
|
|
gtk_text_layout_set_screen_width (text_view->layout,
|
|
SCREEN_WIDTH (text_view));
|
|
|
|
gtk_text_view_allocate_children (text_view);
|
|
|
|
gtk_text_view_validate_onscreen (text_view);
|
|
gtk_text_view_scroll_calc_now (text_view);
|
|
|
|
/* Now adjust the value of the adjustment to keep the cursor at the
|
|
* same place in the buffer
|
|
*/
|
|
gtk_text_view_get_first_para_iter (text_view, &first_para);
|
|
gtk_text_layout_get_line_yrange (text_view->layout, &first_para, &y, NULL);
|
|
|
|
y += text_view->first_para_pixels;
|
|
|
|
/* Ensure h/v adj exist */
|
|
get_hadjustment (text_view);
|
|
get_vadjustment (text_view);
|
|
|
|
vadj = text_view->vadjustment;
|
|
if (y > vadj->upper - vadj->page_size)
|
|
y = MAX (0, vadj->upper - vadj->page_size);
|
|
|
|
if (y != text_view->yoffset)
|
|
{
|
|
vadj->value = text_view->yoffset = y;
|
|
yoffset_changed = TRUE;
|
|
}
|
|
|
|
text_view->hadjustment->page_size = SCREEN_WIDTH (text_view);
|
|
text_view->hadjustment->page_increment = SCREEN_WIDTH (text_view) / 2;
|
|
text_view->hadjustment->lower = 0;
|
|
text_view->hadjustment->upper = MAX (SCREEN_WIDTH (text_view),
|
|
text_view->width);
|
|
gtk_signal_emit_by_name (GTK_OBJECT (text_view->hadjustment), "changed");
|
|
|
|
text_view->vadjustment->page_size = SCREEN_HEIGHT (text_view);
|
|
text_view->vadjustment->page_increment = SCREEN_HEIGHT (text_view) / 2;
|
|
text_view->vadjustment->lower = 0;
|
|
text_view->vadjustment->upper = MAX (SCREEN_HEIGHT (text_view),
|
|
text_view->height);
|
|
gtk_signal_emit_by_name (GTK_OBJECT (text_view->vadjustment), "changed");
|
|
|
|
if (yoffset_changed)
|
|
gtk_adjustment_value_changed (vadj);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_get_first_para_iter (GtkTextView *text_view,
|
|
GtkTextIter *iter)
|
|
{
|
|
gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), iter,
|
|
text_view->first_para_mark);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_validate_onscreen (GtkTextView *text_view)
|
|
{
|
|
GtkWidget *widget = GTK_WIDGET (text_view);
|
|
|
|
if (SCREEN_HEIGHT (widget) > 0)
|
|
{
|
|
GtkTextIter first_para;
|
|
gtk_text_view_get_first_para_iter (text_view, &first_para);
|
|
gtk_text_layout_validate_yrange (text_view->layout,
|
|
&first_para,
|
|
0,
|
|
text_view->first_para_pixels +
|
|
SCREEN_HEIGHT (widget));
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
first_validate_callback (gpointer data)
|
|
{
|
|
GtkTextView *text_view = data;
|
|
|
|
gtk_text_view_validate_onscreen (text_view);
|
|
|
|
text_view->first_validate_idle = 0;
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
incremental_validate_callback (gpointer data)
|
|
{
|
|
GtkTextView *text_view = data;
|
|
|
|
gtk_text_layout_validate (text_view->layout, 2000);
|
|
if (gtk_text_layout_is_valid (text_view->layout))
|
|
{
|
|
text_view->incremental_validate_idle = 0;
|
|
return FALSE;
|
|
}
|
|
else
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
invalidated_handler (GtkTextLayout *layout,
|
|
gpointer data)
|
|
{
|
|
GtkTextView *text_view;
|
|
|
|
text_view = GTK_TEXT_VIEW (data);
|
|
|
|
if (!text_view->first_validate_idle)
|
|
text_view->first_validate_idle = g_idle_add_full (GTK_PRIORITY_RESIZE - 1, first_validate_callback, text_view, NULL);
|
|
|
|
if (!text_view->incremental_validate_idle)
|
|
text_view->incremental_validate_idle = g_idle_add_full (GDK_PRIORITY_REDRAW + 1, incremental_validate_callback, text_view, NULL);
|
|
}
|
|
|
|
static void
|
|
changed_handler (GtkTextLayout *layout,
|
|
gint start_y,
|
|
gint old_height,
|
|
gint new_height,
|
|
gpointer data)
|
|
{
|
|
GtkTextView *text_view;
|
|
GtkWidget *widget;
|
|
GdkRectangle visible_rect;
|
|
GdkRectangle redraw_rect;
|
|
|
|
text_view = GTK_TEXT_VIEW (data);
|
|
widget = GTK_WIDGET (data);
|
|
|
|
if (GTK_WIDGET_REALIZED (text_view))
|
|
{
|
|
gtk_text_view_get_visible_rect (text_view, &visible_rect);
|
|
|
|
redraw_rect.x = visible_rect.x;
|
|
redraw_rect.width = visible_rect.width;
|
|
redraw_rect.y = start_y;
|
|
|
|
if (old_height == new_height)
|
|
redraw_rect.height = old_height;
|
|
else
|
|
redraw_rect.height = MAX (0, visible_rect.y + visible_rect.height - start_y);
|
|
|
|
if (gdk_rectangle_intersect (&redraw_rect, &visible_rect, &redraw_rect))
|
|
{
|
|
redraw_rect.y -= text_view->yoffset;
|
|
text_window_invalidate_rect (text_view->text_window,
|
|
&redraw_rect);
|
|
}
|
|
}
|
|
|
|
if (old_height != new_height)
|
|
{
|
|
gboolean yoffset_changed = FALSE;
|
|
|
|
if (start_y + old_height <= text_view->yoffset - text_view->first_para_pixels)
|
|
{
|
|
text_view->yoffset += new_height - old_height;
|
|
get_vadjustment (text_view)->value = text_view->yoffset;
|
|
yoffset_changed = TRUE;
|
|
}
|
|
|
|
gtk_text_view_scroll_calc_now (text_view);
|
|
|
|
if (yoffset_changed)
|
|
gtk_adjustment_value_changed (get_vadjustment (text_view));
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_realize (GtkWidget *widget)
|
|
{
|
|
GtkTextView *text_view;
|
|
GdkWindowAttr attributes;
|
|
gint attributes_mask;
|
|
|
|
text_view = GTK_TEXT_VIEW (widget);
|
|
GTK_WIDGET_SET_FLAGS (text_view, GTK_REALIZED);
|
|
|
|
attributes.window_type = GDK_WINDOW_CHILD;
|
|
attributes.x = widget->allocation.x;
|
|
attributes.y = widget->allocation.y;
|
|
attributes.width = widget->allocation.width;
|
|
attributes.height = widget->allocation.height;
|
|
attributes.wclass = GDK_INPUT_OUTPUT;
|
|
attributes.visual = gtk_widget_get_visual (widget);
|
|
attributes.colormap = gtk_widget_get_colormap (widget);
|
|
attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK;
|
|
|
|
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
|
|
|
|
widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
|
|
&attributes, attributes_mask);
|
|
gdk_window_set_user_data (widget->window, widget);
|
|
|
|
/* must come before text_window_realize calls */
|
|
widget->style = gtk_style_attach (widget->style, widget->window);
|
|
|
|
gdk_window_set_background (widget->window,
|
|
&widget->style->bg[GTK_WIDGET_STATE (widget)]);
|
|
|
|
text_window_realize (text_view->text_window, widget->window);
|
|
|
|
if (text_view->left_window)
|
|
text_window_realize (text_view->left_window,
|
|
widget->window);
|
|
|
|
if (text_view->top_window)
|
|
text_window_realize (text_view->top_window,
|
|
widget->window);
|
|
|
|
if (text_view->right_window)
|
|
text_window_realize (text_view->right_window,
|
|
widget->window);
|
|
|
|
if (text_view->bottom_window)
|
|
text_window_realize (text_view->bottom_window,
|
|
widget->window);
|
|
|
|
gtk_text_view_ensure_layout (text_view);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_unrealize (GtkWidget *widget)
|
|
{
|
|
GtkTextView *text_view;
|
|
|
|
text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
if (text_view->first_validate_idle)
|
|
{
|
|
g_source_remove (text_view->first_validate_idle);
|
|
text_view->first_validate_idle = 0;
|
|
}
|
|
|
|
if (text_view->incremental_validate_idle)
|
|
{
|
|
g_source_remove (text_view->incremental_validate_idle);
|
|
text_view->incremental_validate_idle = 0;
|
|
}
|
|
|
|
if (text_view->popup_menu)
|
|
{
|
|
gtk_widget_destroy (text_view->popup_menu);
|
|
text_view->popup_menu = NULL;
|
|
}
|
|
|
|
text_window_unrealize (text_view->text_window);
|
|
|
|
if (text_view->left_window)
|
|
text_window_unrealize (text_view->left_window);
|
|
|
|
if (text_view->top_window)
|
|
text_window_unrealize (text_view->top_window);
|
|
|
|
if (text_view->right_window)
|
|
text_window_unrealize (text_view->right_window);
|
|
|
|
if (text_view->bottom_window)
|
|
text_window_unrealize (text_view->bottom_window);
|
|
|
|
gtk_text_view_destroy_layout (text_view);
|
|
|
|
(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_style_set (GtkWidget *widget,
|
|
GtkStyle *previous_style)
|
|
{
|
|
GtkTextView *text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
if (GTK_WIDGET_REALIZED (widget))
|
|
{
|
|
gdk_window_set_background (widget->window,
|
|
&widget->style->bg[GTK_WIDGET_STATE (widget)]);
|
|
|
|
gdk_window_set_background (text_view->text_window->bin_window,
|
|
&widget->style->base[GTK_WIDGET_STATE (widget)]);
|
|
|
|
if (text_view->left_window)
|
|
gdk_window_set_background (text_view->left_window->bin_window,
|
|
&widget->style->bg[GTK_WIDGET_STATE (widget)]);
|
|
if (text_view->right_window)
|
|
gdk_window_set_background (text_view->right_window->bin_window,
|
|
&widget->style->bg[GTK_WIDGET_STATE (widget)]);
|
|
|
|
if (text_view->top_window)
|
|
gdk_window_set_background (text_view->top_window->bin_window,
|
|
&widget->style->bg[GTK_WIDGET_STATE (widget)]);
|
|
|
|
if (text_view->bottom_window)
|
|
gdk_window_set_background (text_view->bottom_window->bin_window,
|
|
&widget->style->bg[GTK_WIDGET_STATE (widget)]);
|
|
|
|
gtk_text_view_set_attributes_from_style (text_view,
|
|
text_view->layout->default_style,
|
|
widget->style);
|
|
gtk_text_layout_default_style_changed (text_view->layout);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_direction_changed (GtkWidget *widget,
|
|
GtkTextDirection previous_direction)
|
|
{
|
|
GtkTextView *text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
if (text_view->layout)
|
|
{
|
|
text_view->layout->default_style->direction = gtk_widget_get_direction (widget);
|
|
gtk_text_layout_default_style_changed (text_view->layout);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Events
|
|
*/
|
|
|
|
static gboolean
|
|
get_event_coordinates (GdkEvent *event, gint *x, gint *y)
|
|
{
|
|
if (event)
|
|
switch (event->type)
|
|
{
|
|
case GDK_MOTION_NOTIFY:
|
|
*x = event->motion.x;
|
|
*y = event->motion.y;
|
|
return TRUE;
|
|
break;
|
|
|
|
case GDK_BUTTON_PRESS:
|
|
case GDK_2BUTTON_PRESS:
|
|
case GDK_3BUTTON_PRESS:
|
|
case GDK_BUTTON_RELEASE:
|
|
*x = event->button.x;
|
|
*y = event->button.y;
|
|
return TRUE;
|
|
break;
|
|
|
|
case GDK_KEY_PRESS:
|
|
case GDK_KEY_RELEASE:
|
|
case GDK_ENTER_NOTIFY:
|
|
case GDK_LEAVE_NOTIFY:
|
|
case GDK_PROPERTY_NOTIFY:
|
|
case GDK_SELECTION_CLEAR:
|
|
case GDK_SELECTION_REQUEST:
|
|
case GDK_SELECTION_NOTIFY:
|
|
case GDK_PROXIMITY_IN:
|
|
case GDK_PROXIMITY_OUT:
|
|
case GDK_DRAG_ENTER:
|
|
case GDK_DRAG_LEAVE:
|
|
case GDK_DRAG_MOTION:
|
|
case GDK_DRAG_STATUS:
|
|
case GDK_DROP_START:
|
|
case GDK_DROP_FINISHED:
|
|
default:
|
|
return FALSE;
|
|
break;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
emit_event_on_tags (GtkWidget *widget,
|
|
GdkEvent *event,
|
|
GtkTextIter *iter)
|
|
{
|
|
GSList *tags;
|
|
GSList *tmp;
|
|
gint retval = FALSE;
|
|
GtkTextView *text_view;
|
|
|
|
text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
tags = gtk_text_iter_get_tags (iter);
|
|
|
|
tmp = tags;
|
|
while (tmp != NULL)
|
|
{
|
|
GtkTextTag *tag = tmp->data;
|
|
|
|
if (gtk_text_tag_event (tag, G_OBJECT (widget), event, iter))
|
|
{
|
|
retval = TRUE;
|
|
break;
|
|
}
|
|
|
|
tmp = g_slist_next (tmp);
|
|
}
|
|
|
|
g_slist_free (tags);
|
|
|
|
return retval;
|
|
}
|
|
|
|
static gint
|
|
gtk_text_view_event (GtkWidget *widget, GdkEvent *event)
|
|
{
|
|
GtkTextView *text_view;
|
|
gint x = 0, y = 0;
|
|
|
|
text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
if (text_view->layout == NULL ||
|
|
get_buffer (text_view) == NULL)
|
|
return FALSE;
|
|
|
|
if (event->any.window != text_view->text_window->bin_window)
|
|
return FALSE;
|
|
|
|
if (get_event_coordinates (event, &x, &y))
|
|
{
|
|
GtkTextIter iter;
|
|
|
|
x += text_view->xoffset;
|
|
y += text_view->yoffset;
|
|
|
|
/* FIXME this is slow and we do it twice per event.
|
|
My favorite solution is to have GtkTextLayout cache
|
|
the last couple lookups. */
|
|
gtk_text_layout_get_iter_at_pixel (text_view->layout,
|
|
&iter,
|
|
x, y);
|
|
|
|
return emit_event_on_tags (widget, event, &iter);
|
|
}
|
|
else if (event->type == GDK_KEY_PRESS ||
|
|
event->type == GDK_KEY_RELEASE)
|
|
{
|
|
GtkTextMark *insert;
|
|
GtkTextIter iter;
|
|
|
|
insert = gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"insert");
|
|
|
|
gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
|
|
|
|
return emit_event_on_tags (widget, event, &iter);
|
|
}
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
gtk_text_view_key_press_event (GtkWidget *widget, GdkEventKey *event)
|
|
{
|
|
GtkTextView *text_view;
|
|
|
|
text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
if (text_view->layout == NULL ||
|
|
get_buffer (text_view) == NULL)
|
|
return FALSE;
|
|
|
|
if (gtk_im_context_filter_keypress (text_view->im_context, event))
|
|
{
|
|
text_view->need_im_reset = TRUE;
|
|
return TRUE;
|
|
}
|
|
else if (GTK_WIDGET_CLASS (parent_class)->key_press_event &&
|
|
GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event))
|
|
return TRUE;
|
|
else if (event->keyval == GDK_Return)
|
|
{
|
|
gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), "\n", 1,
|
|
text_view->editable);
|
|
gtk_text_view_scroll_to_mark (text_view,
|
|
gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"insert"),
|
|
0);
|
|
return TRUE;
|
|
}
|
|
/* Pass through Tab as literal tab, unless Control is held down */
|
|
else if (event->keyval == GDK_Tab && !(event->state & GDK_CONTROL_MASK))
|
|
{
|
|
gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), "\t", 1,
|
|
text_view->editable);
|
|
gtk_text_view_scroll_to_mark (text_view,
|
|
gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"insert"),
|
|
0);
|
|
return TRUE;
|
|
}
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
gtk_text_view_key_release_event (GtkWidget *widget, GdkEventKey *event)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
gtk_text_view_button_press_event (GtkWidget *widget, GdkEventButton *event)
|
|
{
|
|
GtkTextView *text_view;
|
|
|
|
text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
gtk_widget_grab_focus (widget);
|
|
|
|
if (event->window != text_view->text_window->bin_window)
|
|
{
|
|
/* Remove selection if any. */
|
|
gtk_text_view_unselect (text_view);
|
|
return FALSE;
|
|
}
|
|
|
|
#if 0
|
|
/* debug hack */
|
|
if (event->button == 3 && (event->state & GDK_CONTROL_MASK) != 0)
|
|
_gtk_text_buffer_spew (GTK_TEXT_VIEW (widget)->buffer);
|
|
else if (event->button == 3)
|
|
gtk_text_layout_spew (GTK_TEXT_VIEW (widget)->layout);
|
|
#endif
|
|
|
|
if (event->type == GDK_BUTTON_PRESS)
|
|
{
|
|
gtk_text_view_reset_im_context (text_view);
|
|
|
|
if (event->button == 1)
|
|
{
|
|
/* If we're in the selection, start a drag copy/move of the
|
|
* selection; otherwise, start creating a new selection.
|
|
*/
|
|
GtkTextIter iter;
|
|
GtkTextIter start, end;
|
|
|
|
gtk_text_layout_get_iter_at_pixel (text_view->layout,
|
|
&iter,
|
|
event->x + text_view->xoffset,
|
|
event->y + text_view->yoffset);
|
|
|
|
if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
|
|
&start, &end) &&
|
|
gtk_text_iter_in_range (&iter, &start, &end))
|
|
{
|
|
text_view->drag_start_x = event->x;
|
|
text_view->drag_start_y = event->y;
|
|
}
|
|
else
|
|
{
|
|
gtk_text_view_start_selection_drag (text_view, &iter, event);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
else if (event->button == 2)
|
|
{
|
|
GtkTextIter iter;
|
|
|
|
gtk_text_layout_get_iter_at_pixel (text_view->layout,
|
|
&iter,
|
|
event->x + text_view->xoffset,
|
|
event->y + text_view->yoffset);
|
|
|
|
gtk_text_buffer_paste_primary (get_buffer (text_view),
|
|
&iter,
|
|
text_view->editable);
|
|
return TRUE;
|
|
}
|
|
else if (event->button == 3)
|
|
{
|
|
gtk_text_view_popup_menu (text_view, event);
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
gtk_text_view_button_release_event (GtkWidget *widget, GdkEventButton *event)
|
|
{
|
|
GtkTextView *text_view;
|
|
|
|
text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
if (event->window != text_view->text_window->bin_window)
|
|
return FALSE;
|
|
|
|
if (event->button == 1)
|
|
{
|
|
if (text_view->drag_start_x >= 0)
|
|
{
|
|
text_view->drag_start_x = -1;
|
|
text_view->drag_start_y = -1;
|
|
}
|
|
|
|
if (gtk_text_view_end_selection_drag (GTK_TEXT_VIEW (widget), event))
|
|
return TRUE;
|
|
else
|
|
{
|
|
/* Unselect everything; probably we were dragging, or clicked
|
|
* outside the text.
|
|
*/
|
|
gtk_text_view_unselect (text_view);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
gtk_text_view_focus_in_event (GtkWidget *widget, GdkEventFocus *event)
|
|
{
|
|
GtkTextView *text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
|
|
gtk_widget_draw_focus (widget);
|
|
|
|
if (text_view->cursor_visible && text_view->layout)
|
|
{
|
|
gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
|
|
gtk_text_view_start_cursor_blink (text_view);
|
|
}
|
|
|
|
text_view->need_im_reset = TRUE;
|
|
gtk_im_context_focus_in (GTK_TEXT_VIEW (widget)->im_context);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
gtk_text_view_focus_out_event (GtkWidget *widget, GdkEventFocus *event)
|
|
{
|
|
GtkTextView *text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
|
|
gtk_widget_draw_focus (widget);
|
|
|
|
if (text_view->cursor_visible && text_view->layout)
|
|
{
|
|
gtk_text_layout_set_cursor_visible (text_view->layout, FALSE);
|
|
gtk_text_view_stop_cursor_blink (text_view);
|
|
}
|
|
|
|
text_view->need_im_reset = TRUE;
|
|
gtk_im_context_focus_out (GTK_TEXT_VIEW (widget)->im_context);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
gtk_text_view_motion_event (GtkWidget *widget, GdkEventMotion *event)
|
|
{
|
|
GtkTextView *text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
if (event->window == text_view->text_window->bin_window &&
|
|
text_view->drag_start_x >= 0)
|
|
{
|
|
gint x, y;
|
|
gint dx, dy;
|
|
|
|
gdk_window_get_pointer (text_view->text_window->bin_window,
|
|
&x, &y, NULL);
|
|
|
|
dx = text_view->drag_start_x - x;
|
|
dy = text_view->drag_start_y - y;
|
|
|
|
if (ABS (dx) > DRAG_THRESHOLD ||
|
|
ABS (dy) > DRAG_THRESHOLD)
|
|
{
|
|
GtkTextIter iter;
|
|
gint buffer_x, buffer_y;
|
|
|
|
gtk_text_view_window_to_buffer_coords (text_view,
|
|
GTK_TEXT_WINDOW_TEXT,
|
|
text_view->drag_start_x,
|
|
text_view->drag_start_y,
|
|
&buffer_x,
|
|
&buffer_y);
|
|
|
|
gtk_text_layout_get_iter_at_pixel (text_view->layout,
|
|
&iter,
|
|
buffer_x, buffer_y);
|
|
|
|
gtk_text_view_start_selection_dnd (text_view, &iter, event);
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_paint (GtkWidget *widget, GdkRectangle *area)
|
|
{
|
|
GtkTextView *text_view;
|
|
|
|
text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
g_return_if_fail (text_view->layout != NULL);
|
|
g_return_if_fail (text_view->xoffset >= 0);
|
|
g_return_if_fail (text_view->yoffset >= 0);
|
|
|
|
gtk_text_view_validate_onscreen (text_view);
|
|
|
|
#if 0
|
|
printf ("painting %d,%d %d x %d\n",
|
|
area->x, area->y,
|
|
area->width, area->height);
|
|
#endif
|
|
|
|
gtk_text_layout_draw (text_view->layout,
|
|
widget,
|
|
text_view->text_window->bin_window,
|
|
text_view->xoffset,
|
|
text_view->yoffset,
|
|
area->x, area->y,
|
|
area->width, area->height);
|
|
}
|
|
|
|
static void
|
|
send_expose (GtkTextView *text_view,
|
|
GtkTextWindow *win,
|
|
GdkRectangle *area)
|
|
{
|
|
GdkEventExpose event;
|
|
|
|
event.type = GDK_EXPOSE;
|
|
event.send_event = TRUE;
|
|
event.window = win->bin_window;
|
|
event.area = *area;
|
|
event.count = 0;
|
|
|
|
/* Fix coordinates (convert widget coords to window coords) */
|
|
gtk_text_view_window_to_buffer_coords (text_view,
|
|
GTK_TEXT_WINDOW_WIDGET,
|
|
event.area.x,
|
|
event.area.y,
|
|
&event.area.x,
|
|
&event.area.y);
|
|
|
|
gtk_text_view_buffer_to_window_coords (text_view,
|
|
win->type,
|
|
event.area.x,
|
|
event.area.y,
|
|
&event.area.x,
|
|
&event.area.y);
|
|
|
|
|
|
gdk_window_ref (event.window);
|
|
gtk_widget_event (GTK_WIDGET (text_view), (GdkEvent*) &event);
|
|
gdk_window_unref (event.window);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_draw (GtkWidget *widget, GdkRectangle *area)
|
|
{
|
|
GdkRectangle intersection;
|
|
GtkTextView *text_view;
|
|
|
|
text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
gtk_text_view_paint (widget, area);
|
|
|
|
/* If the area overlaps the "edge" of the widget, draw the focus
|
|
* rectangle
|
|
*/
|
|
if (area->x < FOCUS_EDGE_WIDTH ||
|
|
area->y < FOCUS_EDGE_WIDTH ||
|
|
(area->x + area->width) > (widget->allocation.width - FOCUS_EDGE_WIDTH) ||
|
|
(area->y + area->height) > (widget->allocation.height - FOCUS_EDGE_WIDTH))
|
|
gtk_widget_draw_focus (widget);
|
|
|
|
/* Synthesize expose events for the user-drawn border windows,
|
|
* just as we would for a drawing area.
|
|
*/
|
|
|
|
if (text_view->left_window &&
|
|
gdk_rectangle_intersect (area, &text_view->left_window->allocation,
|
|
&intersection))
|
|
send_expose (text_view, text_view->left_window, &intersection);
|
|
|
|
if (text_view->right_window &&
|
|
gdk_rectangle_intersect (area, &text_view->right_window->allocation,
|
|
&intersection))
|
|
send_expose (text_view, text_view->right_window, &intersection);
|
|
|
|
if (text_view->top_window &&
|
|
gdk_rectangle_intersect (area, &text_view->top_window->allocation,
|
|
&intersection))
|
|
send_expose (text_view, text_view->top_window, &intersection);
|
|
|
|
if (text_view->bottom_window &&
|
|
gdk_rectangle_intersect (area, &text_view->bottom_window->allocation,
|
|
&intersection))
|
|
send_expose (text_view, text_view->bottom_window, &intersection);
|
|
}
|
|
|
|
static gint
|
|
gtk_text_view_expose_event (GtkWidget *widget, GdkEventExpose *event)
|
|
{
|
|
if (event->window == gtk_text_view_get_window (GTK_TEXT_VIEW (widget),
|
|
GTK_TEXT_WINDOW_TEXT))
|
|
gtk_text_view_paint (widget, &event->area);
|
|
|
|
if (event->window == widget->window)
|
|
gtk_widget_draw_focus (widget);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_draw_focus (GtkWidget *widget)
|
|
{
|
|
if (GTK_WIDGET_DRAWABLE (widget))
|
|
{
|
|
if (GTK_WIDGET_HAS_FOCUS (widget))
|
|
{
|
|
gtk_paint_focus (widget->style, widget->window,
|
|
NULL, widget, "textview",
|
|
0, 0,
|
|
widget->allocation.width - 1,
|
|
widget->allocation.height - 1);
|
|
}
|
|
else
|
|
{
|
|
gdk_window_clear (widget->window);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Container
|
|
*/
|
|
|
|
static void
|
|
gtk_text_view_add (GtkContainer *container,
|
|
GtkWidget *child)
|
|
{
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (container));
|
|
g_return_if_fail (GTK_IS_WIDGET (child));
|
|
|
|
/* This is pretty random. */
|
|
gtk_text_view_add_child_in_window (GTK_TEXT_VIEW (container),
|
|
child,
|
|
GTK_TEXT_WINDOW_WIDGET,
|
|
0, 0);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_remove (GtkContainer *container,
|
|
GtkWidget *child)
|
|
{
|
|
GSList *iter;
|
|
GtkTextView *text_view;
|
|
GtkTextViewChild *vc;
|
|
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (container));
|
|
g_return_if_fail (GTK_IS_WIDGET (child));
|
|
g_return_if_fail (child->parent == (GtkWidget*) container);
|
|
|
|
text_view = GTK_TEXT_VIEW (container);
|
|
|
|
vc = NULL;
|
|
iter = text_view->children;
|
|
|
|
while (iter != NULL)
|
|
{
|
|
vc = iter->data;
|
|
|
|
if (vc->widget == child)
|
|
break;
|
|
|
|
iter = g_slist_next (iter);
|
|
}
|
|
|
|
g_assert (iter != NULL); /* be sure we had the child in the list */
|
|
|
|
text_view->children = g_slist_remove (text_view->children, vc);
|
|
|
|
gtk_widget_unparent (vc->widget);
|
|
|
|
text_view_child_free (vc);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_forall (GtkContainer *container,
|
|
gboolean include_internals,
|
|
GtkCallback callback,
|
|
gpointer callback_data)
|
|
{
|
|
GSList *iter;
|
|
GtkTextView *text_view;
|
|
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (container));
|
|
g_return_if_fail (callback != NULL);
|
|
|
|
text_view = GTK_TEXT_VIEW (container);
|
|
|
|
iter = text_view->children;
|
|
|
|
while (iter != NULL)
|
|
{
|
|
GtkTextViewChild *vc = iter->data;
|
|
|
|
(* callback) (vc->widget, callback_data);
|
|
|
|
iter = g_slist_next (iter);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Blink!
|
|
*/
|
|
|
|
static gint
|
|
blink_cb (gpointer data)
|
|
{
|
|
GtkTextView *text_view;
|
|
|
|
text_view = GTK_TEXT_VIEW (data);
|
|
|
|
g_assert (text_view->layout && GTK_WIDGET_HAS_FOCUS (text_view) && text_view->cursor_visible);
|
|
|
|
gtk_text_layout_set_cursor_visible (text_view->layout,
|
|
!gtk_text_layout_get_cursor_visible (text_view->layout));
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_start_cursor_blink (GtkTextView *text_view)
|
|
{
|
|
if (text_view->blink_timeout != 0)
|
|
return;
|
|
|
|
text_view->blink_timeout = gtk_timeout_add (500, blink_cb, text_view);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_stop_cursor_blink (GtkTextView *text_view)
|
|
{
|
|
if (text_view->blink_timeout == 0)
|
|
return;
|
|
|
|
gtk_timeout_remove (text_view->blink_timeout);
|
|
text_view->blink_timeout = 0;
|
|
}
|
|
|
|
/*
|
|
* Key binding handlers
|
|
*/
|
|
|
|
static void
|
|
gtk_text_view_move_iter_by_lines (GtkTextView *text_view,
|
|
GtkTextIter *newplace,
|
|
gint count)
|
|
{
|
|
while (count < 0)
|
|
{
|
|
gtk_text_layout_move_iter_to_previous_line (text_view->layout, newplace);
|
|
count++;
|
|
}
|
|
|
|
while (count > 0)
|
|
{
|
|
gtk_text_layout_move_iter_to_next_line (text_view->layout, newplace);
|
|
count--;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_move_cursor (GtkTextView *text_view,
|
|
GtkMovementStep step,
|
|
gint count,
|
|
gboolean extend_selection)
|
|
{
|
|
GtkTextIter insert;
|
|
GtkTextIter newplace;
|
|
|
|
gint cursor_x_pos = 0;
|
|
|
|
gtk_text_view_reset_im_context (text_view);
|
|
|
|
if (step == GTK_MOVEMENT_PAGES)
|
|
{
|
|
gtk_text_view_scroll_pages (text_view, count);
|
|
return;
|
|
}
|
|
|
|
gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
|
|
gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"insert"));
|
|
newplace = insert;
|
|
|
|
if (step == GTK_MOVEMENT_DISPLAY_LINES)
|
|
gtk_text_view_get_virtual_cursor_pos (text_view, &cursor_x_pos, NULL);
|
|
|
|
switch (step)
|
|
{
|
|
case GTK_MOVEMENT_CHARS:
|
|
gtk_text_iter_forward_chars (&newplace, count);
|
|
break;
|
|
|
|
case GTK_MOVEMENT_POSITIONS:
|
|
gtk_text_layout_move_iter_visually (text_view->layout,
|
|
&newplace, count);
|
|
break;
|
|
|
|
case GTK_MOVEMENT_WORDS:
|
|
if (count < 0)
|
|
gtk_text_iter_backward_word_starts (&newplace, -count);
|
|
else if (count > 0)
|
|
gtk_text_iter_forward_word_ends (&newplace, count);
|
|
break;
|
|
|
|
case GTK_MOVEMENT_DISPLAY_LINES:
|
|
gtk_text_view_move_iter_by_lines (text_view, &newplace, count);
|
|
gtk_text_layout_move_iter_to_x (text_view->layout, &newplace, cursor_x_pos);
|
|
break;
|
|
|
|
case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
|
|
if (count > 1)
|
|
gtk_text_view_move_iter_by_lines (text_view, &newplace, --count);
|
|
else if (count < -1)
|
|
gtk_text_view_move_iter_by_lines (text_view, &newplace, ++count);
|
|
|
|
if (count != 0)
|
|
gtk_text_layout_move_iter_to_line_end (text_view->layout, &newplace, count);
|
|
break;
|
|
|
|
case GTK_MOVEMENT_PARAGRAPHS:
|
|
/* This should almost certainly instead be doing the parallel thing to WORD */
|
|
/* gtk_text_iter_down_lines (&newplace, count); */
|
|
/* FIXME */
|
|
break;
|
|
|
|
case GTK_MOVEMENT_PARAGRAPH_ENDS:
|
|
if (count > 0)
|
|
gtk_text_iter_forward_to_newline (&newplace);
|
|
else if (count < 0)
|
|
gtk_text_iter_set_line_offset (&newplace, 0);
|
|
break;
|
|
|
|
case GTK_MOVEMENT_BUFFER_ENDS:
|
|
if (count > 0)
|
|
gtk_text_buffer_get_last_iter (get_buffer (text_view), &newplace);
|
|
else if (count < 0)
|
|
gtk_text_buffer_get_iter_at_offset (get_buffer (text_view), &newplace, 0);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (!gtk_text_iter_equal (&insert, &newplace))
|
|
{
|
|
if (extend_selection)
|
|
gtk_text_buffer_move_mark (get_buffer (text_view),
|
|
gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"insert"),
|
|
&newplace);
|
|
else
|
|
gtk_text_buffer_place_cursor (get_buffer (text_view), &newplace);
|
|
|
|
gtk_text_view_scroll_to_mark (text_view,
|
|
gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"insert"), 0);
|
|
|
|
if (step == GTK_MOVEMENT_DISPLAY_LINES)
|
|
{
|
|
gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, -1);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_set_anchor (GtkTextView *text_view)
|
|
{
|
|
GtkTextIter insert;
|
|
|
|
gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
|
|
gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"insert"));
|
|
|
|
gtk_text_buffer_create_mark (get_buffer (text_view), "anchor", &insert, TRUE);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_scroll_pages (GtkTextView *text_view,
|
|
gint count)
|
|
{
|
|
gfloat newval;
|
|
GtkAdjustment *adj;
|
|
gint cursor_x_pos, cursor_y_pos;
|
|
GtkTextIter new_insert;
|
|
GtkTextIter anchor;
|
|
gint y0, y1;
|
|
|
|
g_return_if_fail (text_view->vadjustment != NULL);
|
|
|
|
adj = text_view->vadjustment;
|
|
|
|
/* Validate the region that will be brought into view by the cursor motion
|
|
*/
|
|
if (count < 0)
|
|
{
|
|
gtk_text_view_get_first_para_iter (text_view, &anchor);
|
|
y0 = adj->page_size;
|
|
y1 = adj->page_size + count * adj->page_increment;
|
|
}
|
|
else
|
|
{
|
|
gtk_text_view_get_first_para_iter (text_view, &anchor);
|
|
y0 = count * adj->page_increment + adj->page_size;
|
|
y1 = 0;
|
|
}
|
|
|
|
gtk_text_layout_validate_yrange (text_view->layout, &anchor, y0, y1);
|
|
|
|
gtk_text_view_get_virtual_cursor_pos (text_view, &cursor_x_pos, &cursor_y_pos);
|
|
|
|
newval = adj->value;
|
|
|
|
newval += count * adj->page_increment;
|
|
|
|
cursor_y_pos += newval - adj->value;
|
|
set_adjustment_clamped (adj, newval);
|
|
|
|
gtk_text_layout_get_iter_at_pixel (text_view->layout, &new_insert, cursor_x_pos, cursor_y_pos);
|
|
clamp_iter_onscreen (text_view, &new_insert);
|
|
gtk_text_buffer_place_cursor (get_buffer (text_view), &new_insert);
|
|
|
|
gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, cursor_y_pos);
|
|
|
|
/* Adjust to have the cursor _entirely_ onscreen, move_mark_onscreen
|
|
* only guarantees 1 pixel onscreen.
|
|
*/
|
|
gtk_text_view_scroll_to_mark (text_view,
|
|
gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"insert"),
|
|
0);
|
|
}
|
|
|
|
static gboolean
|
|
whitespace (gunichar ch, gpointer user_data)
|
|
{
|
|
return (ch == ' ' || ch == '\t');
|
|
}
|
|
|
|
static gboolean
|
|
not_whitespace (gunichar ch, gpointer user_data)
|
|
{
|
|
return !whitespace (ch, user_data);
|
|
}
|
|
|
|
static gboolean
|
|
find_whitepace_region (const GtkTextIter *center,
|
|
GtkTextIter *start, GtkTextIter *end)
|
|
{
|
|
*start = *center;
|
|
*end = *center;
|
|
|
|
if (gtk_text_iter_backward_find_char (start, not_whitespace, NULL, NULL))
|
|
gtk_text_iter_next_char (start); /* we want the first whitespace... */
|
|
if (whitespace (gtk_text_iter_get_char (end), NULL))
|
|
gtk_text_iter_forward_find_char (end, not_whitespace, NULL, NULL);
|
|
|
|
return !gtk_text_iter_equal (start, end);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_insert_at_cursor (GtkTextView *text_view,
|
|
const gchar *str)
|
|
{
|
|
gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
|
|
text_view->editable);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_delete_from_cursor (GtkTextView *text_view,
|
|
GtkDeleteType type,
|
|
gint count)
|
|
{
|
|
GtkTextIter insert;
|
|
GtkTextIter start;
|
|
GtkTextIter end;
|
|
gboolean leave_one = FALSE;
|
|
|
|
gtk_text_view_reset_im_context (text_view);
|
|
|
|
if (type == GTK_DELETE_CHARS)
|
|
{
|
|
/* Char delete deletes the selection, if one exists */
|
|
if (gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
|
|
text_view->editable))
|
|
return;
|
|
}
|
|
|
|
gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
|
|
&insert,
|
|
gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"insert"));
|
|
|
|
start = insert;
|
|
end = insert;
|
|
|
|
switch (type)
|
|
{
|
|
case GTK_DELETE_CHARS:
|
|
gtk_text_iter_forward_chars (&end, count);
|
|
break;
|
|
|
|
case GTK_DELETE_WORD_ENDS:
|
|
if (count > 0)
|
|
gtk_text_iter_forward_word_ends (&end, count);
|
|
else if (count < 0)
|
|
gtk_text_iter_backward_word_starts (&start, 0 - count);
|
|
break;
|
|
|
|
case GTK_DELETE_WORDS:
|
|
break;
|
|
|
|
case GTK_DELETE_DISPLAY_LINE_ENDS:
|
|
break;
|
|
|
|
case GTK_DELETE_DISPLAY_LINES:
|
|
break;
|
|
|
|
case GTK_DELETE_PARAGRAPH_ENDS:
|
|
/* If we're already at a newline, we need to
|
|
* simply delete that newline, instead of
|
|
* moving to the next one.
|
|
*/
|
|
if (gtk_text_iter_get_char (&end) == '\n')
|
|
{
|
|
gtk_text_iter_next_char (&end);
|
|
--count;
|
|
}
|
|
|
|
while (count > 0)
|
|
{
|
|
if (!gtk_text_iter_forward_to_newline (&end))
|
|
break;
|
|
|
|
--count;
|
|
}
|
|
|
|
/* FIXME figure out what a negative count means
|
|
and support that */
|
|
break;
|
|
|
|
case GTK_DELETE_PARAGRAPHS:
|
|
if (count > 0)
|
|
{
|
|
gtk_text_iter_set_line_offset (&start, 0);
|
|
gtk_text_iter_forward_to_newline (&end);
|
|
|
|
/* Do the lines beyond the first. */
|
|
while (count > 1)
|
|
{
|
|
gtk_text_iter_forward_to_newline (&end);
|
|
|
|
--count;
|
|
}
|
|
}
|
|
|
|
/* FIXME negative count? */
|
|
|
|
break;
|
|
|
|
case GTK_DELETE_WHITESPACE:
|
|
{
|
|
find_whitepace_region (&insert, &start, &end);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (!gtk_text_iter_equal (&start, &end))
|
|
{
|
|
if (gtk_text_buffer_delete_interactive (get_buffer (text_view), &start, &end,
|
|
text_view->editable))
|
|
{
|
|
if (leave_one)
|
|
gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view),
|
|
" ", 1,
|
|
text_view->editable);
|
|
}
|
|
|
|
gtk_text_view_scroll_to_mark (text_view,
|
|
gtk_text_buffer_get_mark (get_buffer (text_view), "insert"),
|
|
0);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_cut_clipboard (GtkTextView *text_view)
|
|
{
|
|
gtk_text_buffer_cut_clipboard (get_buffer (text_view), text_view->editable);
|
|
gtk_text_view_scroll_to_mark (text_view,
|
|
gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"insert"),
|
|
0);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_copy_clipboard (GtkTextView *text_view)
|
|
{
|
|
gtk_text_buffer_copy_clipboard (get_buffer (text_view));
|
|
gtk_text_view_scroll_to_mark (text_view,
|
|
gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"insert"),
|
|
0);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_paste_clipboard (GtkTextView *text_view)
|
|
{
|
|
gtk_text_buffer_paste_clipboard (get_buffer (text_view), text_view->editable);
|
|
gtk_text_view_scroll_to_mark (text_view,
|
|
gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"insert"),
|
|
0);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_toggle_overwrite (GtkTextView *text_view)
|
|
{
|
|
text_view->overwrite_mode = !text_view->overwrite_mode;
|
|
}
|
|
|
|
/*
|
|
* Selections
|
|
*/
|
|
|
|
static void
|
|
gtk_text_view_unselect (GtkTextView *text_view)
|
|
{
|
|
GtkTextIter insert;
|
|
|
|
gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
|
|
&insert,
|
|
gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"insert"));
|
|
|
|
gtk_text_buffer_move_mark (get_buffer (text_view),
|
|
gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"selection_bound"),
|
|
&insert);
|
|
}
|
|
|
|
static gboolean
|
|
move_insert_to_pointer_and_scroll (GtkTextView *text_view, gboolean partial_scroll)
|
|
{
|
|
gint x, y;
|
|
GdkModifierType state;
|
|
GtkTextIter newplace;
|
|
gint adjust = 0;
|
|
gboolean in_threshold = FALSE;
|
|
|
|
gdk_window_get_pointer (text_view->text_window->bin_window,
|
|
&x, &y, &state);
|
|
|
|
/* Adjust movement by how long we've been selecting, to
|
|
get an acceleration effect. The exact numbers are
|
|
pretty arbitrary. We have a threshold before we
|
|
start to accelerate. */
|
|
/* uncommenting this printf helps visualize how it works. */
|
|
/* printf ("%d\n", text_view->scrolling_accel_factor); */
|
|
|
|
if (text_view->scrolling_accel_factor > 10)
|
|
adjust = (text_view->scrolling_accel_factor - 10) * 75;
|
|
|
|
if (y < 0) /* scrolling upward */
|
|
adjust = -adjust;
|
|
|
|
/* No adjust if the pointer has moved back inside the window for sure.
|
|
Also I'm adding a small threshold where no adjust is added,
|
|
in case you want to do a continuous slow scroll. */
|
|
#define SLOW_SCROLL_TH 7
|
|
if (x >= (0 - SLOW_SCROLL_TH) &&
|
|
x < (SCREEN_WIDTH (text_view) + SLOW_SCROLL_TH) &&
|
|
y >= (0 - SLOW_SCROLL_TH) &&
|
|
y < (SCREEN_HEIGHT (text_view) + SLOW_SCROLL_TH))
|
|
{
|
|
adjust = 0;
|
|
in_threshold = TRUE;
|
|
}
|
|
|
|
gtk_text_layout_get_iter_at_pixel (text_view->layout,
|
|
&newplace,
|
|
x + text_view->xoffset,
|
|
y + text_view->yoffset + adjust);
|
|
|
|
{
|
|
gboolean scrolled = FALSE;
|
|
GtkTextMark *insert_mark =
|
|
gtk_text_buffer_get_mark (get_buffer (text_view), "insert");
|
|
|
|
gtk_text_buffer_move_mark (get_buffer (text_view),
|
|
insert_mark,
|
|
&newplace);
|
|
|
|
if (partial_scroll)
|
|
scrolled = gtk_text_view_scroll_to_mark_adjusted (text_view, insert_mark, 0, 0.7);
|
|
else
|
|
scrolled = gtk_text_view_scroll_to_mark_adjusted (text_view, insert_mark, 0, 1.0);
|
|
|
|
if (scrolled)
|
|
{
|
|
/* We want to avoid rapid jump to super-accelerated when you
|
|
leave the slow scroll threshold after scrolling for a
|
|
while. So we slowly decrease accel when scrolling inside
|
|
the threshold.
|
|
*/
|
|
if (in_threshold)
|
|
{
|
|
if (text_view->scrolling_accel_factor > 1)
|
|
text_view->scrolling_accel_factor -= 2;
|
|
}
|
|
else
|
|
text_view->scrolling_accel_factor += 1;
|
|
}
|
|
else
|
|
{
|
|
/* If we don't scroll we're probably inside the window, but
|
|
potentially just a bit outside. We decrease acceleration
|
|
while the user is fooling around inside the window.
|
|
Acceleration decreases faster than it increases. */
|
|
if (text_view->scrolling_accel_factor > 4)
|
|
text_view->scrolling_accel_factor -= 5;
|
|
}
|
|
|
|
return scrolled;
|
|
}
|
|
}
|
|
|
|
static gint
|
|
selection_scan_timeout (gpointer data)
|
|
{
|
|
GtkTextView *text_view;
|
|
|
|
text_view = GTK_TEXT_VIEW (data);
|
|
|
|
if (move_insert_to_pointer_and_scroll (text_view, TRUE))
|
|
{
|
|
return TRUE; /* remain installed. */
|
|
}
|
|
else
|
|
{
|
|
text_view->selection_drag_scan_timeout = 0;
|
|
return FALSE; /* remove ourselves */
|
|
}
|
|
}
|
|
|
|
static gint
|
|
selection_motion_event_handler (GtkTextView *text_view, GdkEventMotion *event, gpointer data)
|
|
{
|
|
if (move_insert_to_pointer_and_scroll (text_view, TRUE))
|
|
{
|
|
/* If we had to scroll offscreen, insert a timeout to do so
|
|
again. Note that in the timeout, even if the mouse doesn't
|
|
move, due to this scroll xoffset/yoffset will have changed
|
|
and we'll need to scroll again. */
|
|
if (text_view->selection_drag_scan_timeout != 0) /* reset on every motion event */
|
|
gtk_timeout_remove (text_view->selection_drag_scan_timeout);
|
|
|
|
text_view->selection_drag_scan_timeout =
|
|
gtk_timeout_add (50, selection_scan_timeout, text_view);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_start_selection_drag (GtkTextView *text_view,
|
|
const GtkTextIter *iter,
|
|
GdkEventButton *button)
|
|
{
|
|
GtkTextIter newplace;
|
|
|
|
g_return_if_fail (text_view->selection_drag_handler == 0);
|
|
|
|
gtk_grab_add (GTK_WIDGET (text_view));
|
|
|
|
text_view->scrolling_accel_factor = 0;
|
|
|
|
newplace = *iter;
|
|
|
|
gtk_text_buffer_place_cursor (get_buffer (text_view), &newplace);
|
|
|
|
text_view->selection_drag_handler = gtk_signal_connect (GTK_OBJECT (text_view),
|
|
"motion_notify_event",
|
|
GTK_SIGNAL_FUNC (selection_motion_event_handler),
|
|
NULL);
|
|
}
|
|
|
|
/* returns whether we were really dragging */
|
|
static gboolean
|
|
gtk_text_view_end_selection_drag (GtkTextView *text_view, GdkEventButton *event)
|
|
{
|
|
if (text_view->selection_drag_handler == 0)
|
|
return FALSE;
|
|
|
|
gtk_signal_disconnect (GTK_OBJECT (text_view), text_view->selection_drag_handler);
|
|
text_view->selection_drag_handler = 0;
|
|
|
|
text_view->scrolling_accel_factor = 0;
|
|
|
|
if (text_view->selection_drag_scan_timeout != 0)
|
|
{
|
|
gtk_timeout_remove (text_view->selection_drag_scan_timeout);
|
|
text_view->selection_drag_scan_timeout = 0;
|
|
}
|
|
|
|
/* one last update to current position */
|
|
move_insert_to_pointer_and_scroll (text_view, FALSE);
|
|
|
|
gtk_grab_remove (GTK_WIDGET (text_view));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* Layout utils
|
|
*/
|
|
|
|
static void
|
|
gtk_text_view_set_adjustment_upper (GtkAdjustment *adj, gfloat upper)
|
|
{
|
|
if (upper != adj->upper)
|
|
{
|
|
gfloat min = MAX (0., upper - adj->page_size);
|
|
gboolean value_changed = FALSE;
|
|
|
|
adj->upper = upper;
|
|
|
|
if (adj->value > min)
|
|
{
|
|
adj->value = min;
|
|
value_changed = TRUE;
|
|
}
|
|
|
|
gtk_signal_emit_by_name (GTK_OBJECT (adj), "changed");
|
|
if (value_changed)
|
|
gtk_signal_emit_by_name (GTK_OBJECT (adj), "value_changed");
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_scroll_calc_now (GtkTextView *text_view)
|
|
{
|
|
gint width = 0, height = 0;
|
|
|
|
gtk_text_view_ensure_layout (text_view);
|
|
|
|
|
|
gtk_text_layout_set_screen_width (text_view->layout,
|
|
SCREEN_WIDTH (text_view));
|
|
|
|
gtk_text_layout_get_size (text_view->layout, &width, &height);
|
|
|
|
#if 0
|
|
/* If the width is less than the screen width (likely
|
|
if we have wrapping turned on for the whole widget),
|
|
then we want to set the scroll region to the screen
|
|
width. If the width is greater (wrapping off) then we
|
|
probably want to set the scroll region to the width
|
|
of the layout. I guess.
|
|
*/
|
|
|
|
width = MAX (text_view->layout->screen_width, width);
|
|
height = height;
|
|
#endif
|
|
|
|
if (text_view->width != width || text_view->height != height)
|
|
{
|
|
#if 0
|
|
printf ("layout size set, widget width is %d\n",
|
|
GTK_WIDGET (text_view)->allocation.width);
|
|
#endif
|
|
text_view->width = width;
|
|
text_view->height = height;
|
|
|
|
gtk_text_view_set_adjustment_upper (get_hadjustment (text_view),
|
|
MAX (SCREEN_WIDTH (text_view), width));
|
|
gtk_text_view_set_adjustment_upper (get_vadjustment (text_view),
|
|
MAX (SCREEN_HEIGHT (text_view), height));
|
|
|
|
/* hadj/vadj exist since we called get_hadjustment/get_vadjustment above */
|
|
|
|
/* Set up the step sizes; we'll say that a page is
|
|
our allocation minus one step, and a step is
|
|
1/10 of our allocation. */
|
|
text_view->hadjustment->step_increment =
|
|
SCREEN_WIDTH (text_view) / 10.0;
|
|
text_view->hadjustment->page_increment =
|
|
SCREEN_WIDTH (text_view) * 0.9;
|
|
|
|
text_view->vadjustment->step_increment =
|
|
SCREEN_HEIGHT (text_view) / 10.0;
|
|
text_view->vadjustment->page_increment =
|
|
SCREEN_HEIGHT (text_view) * 0.9;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_set_attributes_from_style (GtkTextView *text_view,
|
|
GtkTextAttributes *values,
|
|
GtkStyle *style)
|
|
{
|
|
values->appearance.bg_color = style->base[GTK_STATE_NORMAL];
|
|
values->appearance.fg_color = style->fg[GTK_STATE_NORMAL];
|
|
|
|
if (values->font_desc)
|
|
pango_font_description_free (values->font_desc);
|
|
|
|
values->font_desc = pango_font_description_copy (style->font_desc);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_ensure_layout (GtkTextView *text_view)
|
|
{
|
|
GtkWidget *widget;
|
|
|
|
widget = GTK_WIDGET (text_view);
|
|
|
|
if (text_view->layout == NULL)
|
|
{
|
|
GtkTextAttributes *style;
|
|
PangoContext *ltr_context, *rtl_context;
|
|
|
|
text_view->layout = gtk_text_layout_new ();
|
|
|
|
gtk_signal_connect (GTK_OBJECT (text_view->layout),
|
|
"invalidated",
|
|
GTK_SIGNAL_FUNC (invalidated_handler),
|
|
text_view);
|
|
|
|
gtk_signal_connect (GTK_OBJECT (text_view->layout),
|
|
"changed",
|
|
GTK_SIGNAL_FUNC (changed_handler),
|
|
text_view);
|
|
|
|
if (get_buffer (text_view))
|
|
gtk_text_layout_set_buffer (text_view->layout, get_buffer (text_view));
|
|
|
|
if ((GTK_WIDGET_HAS_FOCUS (text_view) && text_view->cursor_visible))
|
|
gtk_text_view_start_cursor_blink (text_view);
|
|
else
|
|
gtk_text_layout_set_cursor_visible (text_view->layout, FALSE);
|
|
|
|
ltr_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view));
|
|
pango_context_set_base_dir (ltr_context, PANGO_DIRECTION_LTR);
|
|
rtl_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view));
|
|
pango_context_set_base_dir (rtl_context, PANGO_DIRECTION_RTL);
|
|
|
|
gtk_text_layout_set_contexts (text_view->layout, ltr_context, rtl_context);
|
|
|
|
g_object_unref (G_OBJECT (ltr_context));
|
|
g_object_unref (G_OBJECT (rtl_context));
|
|
|
|
style = gtk_text_attributes_new ();
|
|
|
|
gtk_widget_ensure_style (widget);
|
|
gtk_text_view_set_attributes_from_style (text_view,
|
|
style, widget->style);
|
|
|
|
style->pixels_above_lines = 2;
|
|
style->pixels_below_lines = 2;
|
|
style->pixels_inside_wrap = 1;
|
|
|
|
style->wrap_mode = text_view->wrap_mode;
|
|
style->justify = GTK_JUSTIFY_LEFT;
|
|
style->direction = gtk_widget_get_direction (GTK_WIDGET (text_view));
|
|
|
|
gtk_text_layout_set_default_style (text_view->layout, style);
|
|
|
|
gtk_text_attributes_unref (style);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_destroy_layout (GtkTextView *text_view)
|
|
{
|
|
if (text_view->layout)
|
|
{
|
|
gtk_text_view_stop_cursor_blink (text_view);
|
|
gtk_text_view_end_selection_drag (text_view, NULL);
|
|
|
|
gtk_signal_disconnect_by_func (GTK_OBJECT (text_view->layout),
|
|
invalidated_handler, text_view);
|
|
gtk_signal_disconnect_by_func (GTK_OBJECT (text_view->layout),
|
|
changed_handler, text_view);
|
|
gtk_object_unref (GTK_OBJECT (text_view->layout));
|
|
text_view->layout = NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_reset_im_context (GtkTextView *text_view)
|
|
{
|
|
if (text_view->need_im_reset)
|
|
text_view->need_im_reset = 0;
|
|
|
|
gtk_im_context_reset (text_view->im_context);
|
|
}
|
|
|
|
/*
|
|
* DND feature
|
|
*/
|
|
|
|
static void
|
|
gtk_text_view_start_selection_dnd (GtkTextView *text_view,
|
|
const GtkTextIter *iter,
|
|
GdkEventMotion *event)
|
|
{
|
|
GdkDragContext *context;
|
|
GtkTargetList *target_list;
|
|
|
|
text_view->drag_start_x = -1;
|
|
text_view->drag_start_y = -1;
|
|
|
|
target_list = gtk_target_list_new (target_table,
|
|
G_N_ELEMENTS (target_table));
|
|
|
|
context = gtk_drag_begin (GTK_WIDGET (text_view), target_list,
|
|
GDK_ACTION_COPY | GDK_ACTION_MOVE,
|
|
1, (GdkEvent*)event);
|
|
|
|
gtk_target_list_unref (target_list);
|
|
|
|
gtk_drag_set_icon_default (context);
|
|
|
|
/* We're inside the selection, so start without being able
|
|
* to accept the drag.
|
|
*/
|
|
gdk_drag_status (context, 0, event->time);
|
|
gtk_text_mark_set_visible (text_view->dnd_mark, FALSE);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_drag_begin (GtkWidget *widget,
|
|
GdkDragContext *context)
|
|
{
|
|
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_drag_end (GtkWidget *widget,
|
|
GdkDragContext *context)
|
|
{
|
|
GtkTextView *text_view;
|
|
|
|
text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
gtk_text_mark_set_visible (text_view->dnd_mark, FALSE);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_drag_data_get (GtkWidget *widget,
|
|
GdkDragContext *context,
|
|
GtkSelectionData *selection_data,
|
|
guint info,
|
|
guint time)
|
|
{
|
|
GtkTextView *text_view;
|
|
|
|
text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
if (selection_data->target == gdk_atom_intern ("GTK_TEXT_BUFFER_CONTENTS", FALSE))
|
|
{
|
|
GtkTextBuffer *buffer = gtk_text_view_get_buffer (text_view);
|
|
|
|
gtk_selection_data_set (selection_data,
|
|
gdk_atom_intern ("GTK_TEXT_BUFFER_CONTENTS", FALSE),
|
|
8, /* bytes */
|
|
(void*)&buffer,
|
|
sizeof (buffer));
|
|
}
|
|
else
|
|
{
|
|
gchar *str;
|
|
GtkTextIter start;
|
|
GtkTextIter end;
|
|
|
|
str = NULL;
|
|
|
|
if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
|
|
&start, &end))
|
|
{
|
|
/* Extract the selected text */
|
|
str = gtk_text_iter_get_visible_text (&start, &end);
|
|
}
|
|
|
|
if (str)
|
|
{
|
|
gtk_selection_data_set_text (selection_data, str);
|
|
g_free (str);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_drag_data_delete (GtkWidget *widget,
|
|
GdkDragContext *context)
|
|
{
|
|
GtkTextView *text_view;
|
|
|
|
text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
gtk_text_buffer_delete_selection (GTK_TEXT_VIEW (widget)->buffer,
|
|
TRUE, GTK_TEXT_VIEW (widget)->editable);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_drag_leave (GtkWidget *widget,
|
|
GdkDragContext *context,
|
|
guint time)
|
|
{
|
|
|
|
|
|
}
|
|
|
|
static gboolean
|
|
gtk_text_view_drag_motion (GtkWidget *widget,
|
|
GdkDragContext *context,
|
|
gint x,
|
|
gint y,
|
|
guint time)
|
|
{
|
|
GtkTextIter newplace;
|
|
GtkTextView *text_view;
|
|
GtkTextIter start;
|
|
GtkTextIter end;
|
|
GdkRectangle target_rect;
|
|
gint bx, by;
|
|
|
|
text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
target_rect = text_view->text_window->allocation;
|
|
|
|
if (x < target_rect.x ||
|
|
y < target_rect.y ||
|
|
x > (target_rect.x + target_rect.width) ||
|
|
y > (target_rect.y + target_rect.height))
|
|
return FALSE; /* outside the text window */
|
|
|
|
gtk_text_view_window_to_buffer_coords (text_view,
|
|
GTK_TEXT_WINDOW_WIDGET,
|
|
x, y,
|
|
&bx, &by);
|
|
|
|
gtk_text_layout_get_iter_at_pixel (text_view->layout,
|
|
&newplace,
|
|
bx, by);
|
|
|
|
if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
|
|
&start, &end) &&
|
|
gtk_text_iter_in_range (&newplace, &start, &end))
|
|
{
|
|
/* We're inside the selection. */
|
|
gdk_drag_status (context, 0, time);
|
|
gtk_text_mark_set_visible (text_view->dnd_mark, FALSE);
|
|
}
|
|
else
|
|
{
|
|
if (gtk_text_iter_editable (&newplace, text_view->editable))
|
|
{
|
|
gtk_text_mark_set_visible (text_view->dnd_mark,
|
|
text_view->cursor_visible);
|
|
|
|
gdk_drag_status (context, context->suggested_action, time);
|
|
}
|
|
else
|
|
{
|
|
/* Can't drop here. */
|
|
gdk_drag_status (context, 0, time);
|
|
gtk_text_mark_set_visible (text_view->dnd_mark, FALSE);
|
|
}
|
|
}
|
|
|
|
gtk_text_buffer_move_mark (get_buffer (text_view),
|
|
gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"gtk_drag_target"),
|
|
&newplace);
|
|
|
|
{
|
|
/* The effect of this is that the text scrolls if you're near
|
|
the edge. We have to scroll whether or not we're inside
|
|
the selection. */
|
|
gint margin;
|
|
|
|
margin = MIN (SCREEN_WIDTH (widget), SCREEN_HEIGHT (widget));
|
|
margin /= 5;
|
|
|
|
gtk_text_view_scroll_to_mark_adjusted (text_view,
|
|
gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"gtk_drag_target"),
|
|
margin, 1.0);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_text_view_drag_drop (GtkWidget *widget,
|
|
GdkDragContext *context,
|
|
gint x,
|
|
gint y,
|
|
guint time)
|
|
{
|
|
#if 0
|
|
/* called automatically. */
|
|
if (context->targets)
|
|
{
|
|
gtk_drag_get_data (widget, context,
|
|
GPOINTER_TO_INT (context->targets->data),
|
|
time);
|
|
return TRUE;
|
|
}
|
|
else
|
|
return FALSE;
|
|
#endif
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
insert_text_data (GtkTextView *text_view,
|
|
GtkTextIter *drop_point,
|
|
GtkSelectionData *selection_data)
|
|
{
|
|
gchar *str;
|
|
|
|
str = gtk_selection_data_get_text (selection_data);
|
|
|
|
if (str)
|
|
{
|
|
gtk_text_buffer_insert_interactive (get_buffer (text_view),
|
|
drop_point, str, -1,
|
|
text_view->editable);
|
|
g_free (str);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_drag_data_received (GtkWidget *widget,
|
|
GdkDragContext *context,
|
|
gint x,
|
|
gint y,
|
|
GtkSelectionData *selection_data,
|
|
guint info,
|
|
guint time)
|
|
{
|
|
GtkTextIter drop_point;
|
|
GtkTextView *text_view;
|
|
GtkTextMark *drag_target_mark;
|
|
|
|
text_view = GTK_TEXT_VIEW (widget);
|
|
|
|
drag_target_mark = gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"gtk_drag_target");
|
|
|
|
if (drag_target_mark == NULL)
|
|
return;
|
|
|
|
gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
|
|
&drop_point,
|
|
drag_target_mark);
|
|
|
|
if (selection_data->target == gdk_atom_intern ("GTK_TEXT_BUFFER_CONTENTS", FALSE))
|
|
{
|
|
GtkTextBuffer *src_buffer = NULL;
|
|
GtkTextIter start, end;
|
|
gboolean copy_tags = TRUE;
|
|
|
|
if (selection_data->length != sizeof (src_buffer))
|
|
return;
|
|
|
|
memcpy (&src_buffer, selection_data->data, sizeof (src_buffer));
|
|
|
|
if (src_buffer == NULL)
|
|
return;
|
|
|
|
g_return_if_fail (GTK_IS_TEXT_BUFFER (src_buffer));
|
|
|
|
if (gtk_text_buffer_get_tag_table (src_buffer) !=
|
|
gtk_text_buffer_get_tag_table (get_buffer (text_view)))
|
|
copy_tags = FALSE;
|
|
|
|
if (gtk_text_buffer_get_selection_bounds (src_buffer,
|
|
&start,
|
|
&end))
|
|
{
|
|
if (copy_tags)
|
|
gtk_text_buffer_insert_range_interactive (get_buffer (text_view),
|
|
&drop_point,
|
|
&start,
|
|
&end,
|
|
text_view->editable);
|
|
else
|
|
{
|
|
gchar *str;
|
|
|
|
str = gtk_text_iter_get_visible_text (&start, &end);
|
|
gtk_text_buffer_insert_interactive (get_buffer (text_view),
|
|
&drop_point, str, -1,
|
|
text_view->editable);
|
|
g_free (str);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
insert_text_data (text_view, &drop_point, selection_data);
|
|
}
|
|
|
|
static GtkAdjustment*
|
|
get_hadjustment (GtkTextView *text_view)
|
|
{
|
|
if (text_view->hadjustment == NULL)
|
|
gtk_text_view_set_scroll_adjustments (text_view,
|
|
(GtkAdjustment*)
|
|
gtk_adjustment_new (0.0, 0.0, 0.0,
|
|
0.0, 0.0, 0.0),
|
|
text_view->vadjustment);
|
|
|
|
return text_view->hadjustment;
|
|
}
|
|
|
|
static GtkAdjustment*
|
|
get_vadjustment (GtkTextView *text_view)
|
|
{
|
|
if (text_view->vadjustment == NULL)
|
|
gtk_text_view_set_scroll_adjustments (text_view,
|
|
text_view->hadjustment,
|
|
(GtkAdjustment*)
|
|
gtk_adjustment_new (0.0, 0.0, 0.0,
|
|
0.0, 0.0, 0.0));
|
|
|
|
return text_view->vadjustment;
|
|
}
|
|
|
|
|
|
static void
|
|
gtk_text_view_set_scroll_adjustments (GtkTextView *text_view,
|
|
GtkAdjustment *hadj,
|
|
GtkAdjustment *vadj)
|
|
{
|
|
gboolean need_adjust = FALSE;
|
|
|
|
g_return_if_fail (text_view != NULL);
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
|
|
|
|
if (hadj)
|
|
g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
|
|
else
|
|
hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
|
|
if (vadj)
|
|
g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
|
|
else
|
|
vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
|
|
|
|
if (text_view->hadjustment && (text_view->hadjustment != hadj))
|
|
{
|
|
gtk_signal_disconnect_by_data (GTK_OBJECT (text_view->hadjustment), text_view);
|
|
gtk_object_unref (GTK_OBJECT (text_view->hadjustment));
|
|
}
|
|
|
|
if (text_view->vadjustment && (text_view->vadjustment != vadj))
|
|
{
|
|
gtk_signal_disconnect_by_data (GTK_OBJECT (text_view->vadjustment), text_view);
|
|
gtk_object_unref (GTK_OBJECT (text_view->vadjustment));
|
|
}
|
|
|
|
if (text_view->hadjustment != hadj)
|
|
{
|
|
text_view->hadjustment = hadj;
|
|
gtk_object_ref (GTK_OBJECT (text_view->hadjustment));
|
|
gtk_object_sink (GTK_OBJECT (text_view->hadjustment));
|
|
|
|
gtk_signal_connect (GTK_OBJECT (text_view->hadjustment), "value_changed",
|
|
(GtkSignalFunc) gtk_text_view_value_changed,
|
|
text_view);
|
|
need_adjust = TRUE;
|
|
}
|
|
|
|
if (text_view->vadjustment != vadj)
|
|
{
|
|
text_view->vadjustment = vadj;
|
|
gtk_object_ref (GTK_OBJECT (text_view->vadjustment));
|
|
gtk_object_sink (GTK_OBJECT (text_view->vadjustment));
|
|
|
|
gtk_signal_connect (GTK_OBJECT (text_view->vadjustment), "value_changed",
|
|
(GtkSignalFunc) gtk_text_view_value_changed,
|
|
text_view);
|
|
need_adjust = TRUE;
|
|
}
|
|
|
|
if (need_adjust)
|
|
gtk_text_view_value_changed (NULL, text_view);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_value_changed (GtkAdjustment *adj,
|
|
GtkTextView *text_view)
|
|
{
|
|
GtkTextIter iter;
|
|
gint line_top;
|
|
gint dx = 0;
|
|
gint dy = 0;
|
|
|
|
if (adj == text_view->hadjustment)
|
|
{
|
|
dx = text_view->xoffset - (gint)adj->value;
|
|
text_view->xoffset = adj->value;
|
|
}
|
|
else if (adj == text_view->vadjustment)
|
|
{
|
|
dy = text_view->yoffset - (gint)adj->value;
|
|
text_view->yoffset = adj->value;
|
|
|
|
if (text_view->layout)
|
|
{
|
|
gtk_text_layout_get_line_at_y (text_view->layout, &iter, adj->value, &line_top);
|
|
|
|
gtk_text_buffer_move_mark (get_buffer (text_view), text_view->first_para_mark, &iter);
|
|
|
|
text_view->first_para_pixels = adj->value - line_top;
|
|
}
|
|
}
|
|
|
|
if (dx != 0 || dy != 0)
|
|
{
|
|
if (dy != 0)
|
|
{
|
|
if (text_view->left_window)
|
|
text_window_scroll (text_view->left_window, 0, dy);
|
|
if (text_view->right_window)
|
|
text_window_scroll (text_view->right_window, 0, dy);
|
|
}
|
|
|
|
if (dx != 0)
|
|
{
|
|
if (text_view->top_window)
|
|
text_window_scroll (text_view->top_window, dx, 0);
|
|
if (text_view->bottom_window)
|
|
text_window_scroll (text_view->bottom_window, dx, 0);
|
|
}
|
|
|
|
/* It looks nicer to scroll the main area last, because
|
|
* it takes a while, and making the side areas update
|
|
* afterward emphasizes the slowness of scrolling the
|
|
* main area.
|
|
*/
|
|
text_window_scroll (text_view->text_window, dx, dy);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_commit_handler (GtkIMContext *context,
|
|
const gchar *str,
|
|
GtkTextView *text_view)
|
|
{
|
|
gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
|
|
text_view->editable);
|
|
|
|
if (!strcmp (str, "\n"))
|
|
{
|
|
gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), "\n", 1,
|
|
text_view->editable);
|
|
}
|
|
else
|
|
{
|
|
if (text_view->overwrite_mode)
|
|
gtk_text_view_delete_from_cursor (text_view, GTK_DELETE_CHARS, 1);
|
|
gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
|
|
text_view->editable);
|
|
}
|
|
|
|
gtk_text_view_scroll_to_mark (text_view,
|
|
gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"insert"),
|
|
0);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_preedit_changed_handler (GtkIMContext *context,
|
|
GtkTextView *text_view)
|
|
{
|
|
gchar *str;
|
|
PangoAttrList *attrs;
|
|
gint cursor_pos;
|
|
|
|
gtk_im_context_get_preedit_string (context, &str, &attrs, &cursor_pos);
|
|
gtk_text_layout_set_preedit_string (text_view->layout, str, attrs, cursor_pos);
|
|
|
|
pango_attr_list_unref (attrs);
|
|
g_free (str);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_mark_set_handler (GtkTextBuffer *buffer,
|
|
const GtkTextIter *location,
|
|
GtkTextMark *mark,
|
|
gpointer data)
|
|
{
|
|
GtkTextView *text_view = GTK_TEXT_VIEW (data);
|
|
gboolean need_reset = FALSE;
|
|
|
|
if (mark == gtk_text_buffer_get_insert (buffer))
|
|
{
|
|
text_view->virtual_cursor_x = -1;
|
|
text_view->virtual_cursor_y = -1;
|
|
need_reset = TRUE;
|
|
}
|
|
else if (mark == gtk_text_buffer_get_selection_bound (buffer))
|
|
{
|
|
need_reset = TRUE;
|
|
}
|
|
|
|
if (need_reset)
|
|
gtk_text_view_reset_im_context (text_view);
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_get_virtual_cursor_pos (GtkTextView *text_view,
|
|
gint *x,
|
|
gint *y)
|
|
{
|
|
GdkRectangle strong_pos;
|
|
GtkTextIter insert;
|
|
|
|
gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
|
|
gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"insert"));
|
|
|
|
if ((x && text_view->virtual_cursor_x == -1) ||
|
|
(y && text_view->virtual_cursor_y == -1))
|
|
gtk_text_layout_get_cursor_locations (text_view->layout, &insert, &strong_pos, NULL);
|
|
|
|
if (x)
|
|
{
|
|
if (text_view->virtual_cursor_x != -1)
|
|
*x = text_view->virtual_cursor_x;
|
|
else
|
|
*x = strong_pos.x;
|
|
}
|
|
|
|
if (y)
|
|
{
|
|
if (text_view->virtual_cursor_x != -1)
|
|
*y = text_view->virtual_cursor_y;
|
|
else
|
|
*y = strong_pos.y + strong_pos.height / 2;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_set_virtual_cursor_pos (GtkTextView *text_view,
|
|
gint x,
|
|
gint y)
|
|
{
|
|
GdkRectangle strong_pos;
|
|
GtkTextIter insert;
|
|
|
|
gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
|
|
gtk_text_buffer_get_mark (get_buffer (text_view),
|
|
"insert"));
|
|
|
|
if (x == -1 || y == -1)
|
|
gtk_text_layout_get_cursor_locations (text_view->layout, &insert, &strong_pos, NULL);
|
|
|
|
text_view->virtual_cursor_x = (x == -1) ? strong_pos.x : x;
|
|
text_view->virtual_cursor_y = (y == -1) ? strong_pos.y + strong_pos.height / 2 : y;
|
|
}
|
|
|
|
/* Quick hack of a popup menu
|
|
*/
|
|
static void
|
|
activate_cb (GtkWidget *menuitem,
|
|
GtkTextView *text_view)
|
|
{
|
|
const gchar *signal = gtk_object_get_data (GTK_OBJECT (menuitem), "gtk-signal");
|
|
gtk_signal_emit_by_name (GTK_OBJECT (text_view), signal);
|
|
}
|
|
|
|
static void
|
|
append_action_signal (GtkTextView *text_view,
|
|
GtkWidget *menu,
|
|
const gchar *label,
|
|
const gchar *signal)
|
|
{
|
|
GtkWidget *menuitem = gtk_menu_item_new_with_label (label);
|
|
|
|
gtk_object_set_data (GTK_OBJECT (menuitem), "gtk-signal", (char *)signal);
|
|
gtk_signal_connect (GTK_OBJECT (menuitem), "activate",
|
|
activate_cb, text_view);
|
|
|
|
gtk_widget_show (menuitem);
|
|
gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
|
|
}
|
|
|
|
static void
|
|
popup_menu_detach (GtkWidget *attach_widget,
|
|
GtkMenu *menu)
|
|
{
|
|
GTK_TEXT_VIEW (attach_widget)->popup_menu = NULL;
|
|
}
|
|
|
|
static void
|
|
gtk_text_view_popup_menu (GtkTextView *text_view,
|
|
GdkEventButton *event)
|
|
{
|
|
if (!text_view->popup_menu)
|
|
{
|
|
GtkWidget *menuitem;
|
|
|
|
text_view->popup_menu = gtk_menu_new ();
|
|
|
|
gtk_menu_attach_to_widget (GTK_MENU (text_view->popup_menu),
|
|
GTK_WIDGET (text_view),
|
|
popup_menu_detach);
|
|
|
|
append_action_signal (text_view, text_view->popup_menu, _("Cut"), "cut_clipboard");
|
|
append_action_signal (text_view, text_view->popup_menu, _("Copy"), "copy_clipboard");
|
|
append_action_signal (text_view, text_view->popup_menu, _("Paste"), "paste_clipboard");
|
|
|
|
menuitem = gtk_menu_item_new (); /* Separator */
|
|
gtk_widget_show (menuitem);
|
|
gtk_menu_shell_append (GTK_MENU_SHELL (text_view->popup_menu), menuitem);
|
|
|
|
gtk_im_multicontext_append_menuitems (GTK_IM_MULTICONTEXT (text_view->im_context),
|
|
GTK_MENU_SHELL (text_view->popup_menu));
|
|
}
|
|
|
|
gtk_menu_popup (GTK_MENU (text_view->popup_menu), NULL, NULL,
|
|
NULL, NULL,
|
|
event->button, event->time);
|
|
}
|
|
|
|
|
|
|
|
/* Child GdkWindows */
|
|
|
|
|
|
static GtkTextWindow*
|
|
text_window_new (GtkTextWindowType type,
|
|
GtkWidget *widget,
|
|
gint width_request,
|
|
gint height_request)
|
|
{
|
|
GtkTextWindow *win;
|
|
|
|
win = g_new (GtkTextWindow, 1);
|
|
|
|
win->type = type;
|
|
win->widget = widget;
|
|
win->window = NULL;
|
|
win->bin_window = NULL;
|
|
win->requisition.width = width_request;
|
|
win->requisition.height = height_request;
|
|
win->allocation.width = width_request;
|
|
win->allocation.height = height_request;
|
|
win->allocation.x = 0;
|
|
win->allocation.y = 0;
|
|
|
|
return win;
|
|
}
|
|
|
|
static void
|
|
text_window_free (GtkTextWindow *win)
|
|
{
|
|
if (win->window)
|
|
text_window_unrealize (win);
|
|
|
|
g_free (win);
|
|
}
|
|
|
|
static void
|
|
text_window_realize (GtkTextWindow *win,
|
|
GdkWindow *parent)
|
|
{
|
|
GdkWindowAttr attributes;
|
|
gint attributes_mask;
|
|
GdkCursor *cursor;
|
|
|
|
attributes.window_type = GDK_WINDOW_CHILD;
|
|
attributes.x = win->allocation.x;
|
|
attributes.y = win->allocation.y;
|
|
attributes.width = win->allocation.width;
|
|
attributes.height = win->allocation.height;
|
|
attributes.wclass = GDK_INPUT_OUTPUT;
|
|
attributes.visual = gtk_widget_get_visual (win->widget);
|
|
attributes.colormap = gtk_widget_get_colormap (win->widget);
|
|
attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
|
|
|
|
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
|
|
|
|
win->window = gdk_window_new (parent,
|
|
&attributes,
|
|
attributes_mask);
|
|
|
|
gdk_window_show (win->window);
|
|
gdk_window_set_user_data (win->window, win->widget);
|
|
|
|
attributes.x = 0;
|
|
attributes.y = 0;
|
|
attributes.width = win->allocation.width;
|
|
attributes.height = win->allocation.height;
|
|
attributes.event_mask = (GDK_EXPOSURE_MASK |
|
|
GDK_SCROLL_MASK |
|
|
GDK_KEY_PRESS_MASK |
|
|
GDK_BUTTON_PRESS_MASK |
|
|
GDK_BUTTON_RELEASE_MASK |
|
|
GDK_POINTER_MOTION_MASK |
|
|
GDK_POINTER_MOTION_HINT_MASK |
|
|
gtk_widget_get_events (win->widget));
|
|
|
|
win->bin_window = gdk_window_new (win->window,
|
|
&attributes,
|
|
attributes_mask);
|
|
|
|
gdk_window_show (win->bin_window);
|
|
gdk_window_set_user_data (win->bin_window, win->widget);
|
|
|
|
if (win->type == GTK_TEXT_WINDOW_TEXT)
|
|
{
|
|
/* I-beam cursor */
|
|
cursor = gdk_cursor_new (GDK_XTERM);
|
|
gdk_window_set_cursor (win->bin_window, cursor);
|
|
gdk_cursor_destroy (cursor);
|
|
|
|
gtk_im_context_set_client_window (GTK_TEXT_VIEW (win->widget)->im_context,
|
|
win->window);
|
|
|
|
|
|
gdk_window_set_background (win->bin_window,
|
|
&win->widget->style->base[GTK_WIDGET_STATE (win->widget)]);
|
|
}
|
|
else
|
|
{
|
|
gdk_window_set_background (win->bin_window,
|
|
&win->widget->style->bg[GTK_WIDGET_STATE (win->widget)]);
|
|
}
|
|
|
|
g_object_set_qdata (G_OBJECT (win->window),
|
|
g_quark_from_static_string ("gtk-text-view-text-window"),
|
|
win);
|
|
|
|
g_object_set_qdata (G_OBJECT (win->bin_window),
|
|
g_quark_from_static_string ("gtk-text-view-text-window"),
|
|
win);
|
|
}
|
|
|
|
static void
|
|
text_window_unrealize (GtkTextWindow *win)
|
|
{
|
|
if (win->type == GTK_TEXT_WINDOW_TEXT)
|
|
{
|
|
gtk_im_context_set_client_window (GTK_TEXT_VIEW (win->widget)->im_context,
|
|
NULL);
|
|
}
|
|
|
|
gdk_window_set_user_data (win->window, NULL);
|
|
gdk_window_set_user_data (win->bin_window, NULL);
|
|
gdk_window_destroy (win->bin_window);
|
|
gdk_window_destroy (win->window);
|
|
win->window = NULL;
|
|
win->bin_window = NULL;
|
|
}
|
|
|
|
static void
|
|
text_window_size_allocate (GtkTextWindow *win,
|
|
GdkRectangle *rect)
|
|
{
|
|
win->allocation = *rect;
|
|
|
|
if (win->window)
|
|
{
|
|
gdk_window_move_resize (win->window,
|
|
rect->x, rect->y,
|
|
rect->width, rect->height);
|
|
|
|
gdk_window_resize (win->bin_window,
|
|
rect->width, rect->height);
|
|
}
|
|
}
|
|
|
|
static void
|
|
text_window_scroll (GtkTextWindow *win,
|
|
gint dx,
|
|
gint dy)
|
|
{
|
|
if (dx != 0 || dy != 0)
|
|
{
|
|
gdk_window_scroll (win->bin_window, dx, dy);
|
|
gdk_window_process_updates (win->bin_window, TRUE);
|
|
}
|
|
}
|
|
|
|
static void
|
|
text_window_invalidate_rect (GtkTextWindow *win,
|
|
GdkRectangle *rect)
|
|
{
|
|
gdk_window_invalidate_rect (win->bin_window, rect, FALSE);
|
|
}
|
|
|
|
static gint
|
|
text_window_get_width (GtkTextWindow *win)
|
|
{
|
|
return win->allocation.width;
|
|
}
|
|
|
|
static gint
|
|
text_window_get_height (GtkTextWindow *win)
|
|
{
|
|
return win->allocation.height;
|
|
}
|
|
|
|
static void
|
|
text_window_get_allocation (GtkTextWindow *win,
|
|
GdkRectangle *rect)
|
|
{
|
|
*rect = win->allocation;
|
|
}
|
|
|
|
/* Windows */
|
|
|
|
|
|
/**
|
|
* gtk_text_view_get_window:
|
|
* @text_view: a #GtkTextView
|
|
* @win: window to get
|
|
*
|
|
* Retrieves the #GdkWindow corresponding to an area of the text view;
|
|
* possible windows include the overall widget window, child windows
|
|
* on the left, right, top, bottom, and the window that displays the
|
|
* text buffer. Windows are %NULL and nonexistent if their width or
|
|
* height is 0, and are nonexistent before the widget has been
|
|
* realized.
|
|
*
|
|
* Return value: a #GdkWindow, or %NULL
|
|
**/
|
|
GdkWindow*
|
|
gtk_text_view_get_window (GtkTextView *text_view,
|
|
GtkTextWindowType win)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
|
|
|
|
switch (win)
|
|
{
|
|
case GTK_TEXT_WINDOW_WIDGET:
|
|
return GTK_WIDGET (text_view)->window;
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_TEXT:
|
|
return text_view->text_window->bin_window;
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_LEFT:
|
|
if (text_view->left_window)
|
|
return text_view->left_window->bin_window;
|
|
else
|
|
return NULL;
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_RIGHT:
|
|
if (text_view->right_window)
|
|
return text_view->right_window->bin_window;
|
|
else
|
|
return NULL;
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_TOP:
|
|
if (text_view->top_window)
|
|
return text_view->top_window->bin_window;
|
|
else
|
|
return NULL;
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_BOTTOM:
|
|
if (text_view->bottom_window)
|
|
return text_view->bottom_window->bin_window;
|
|
else
|
|
return NULL;
|
|
break;
|
|
|
|
default:
|
|
g_warning ("%s: Unknown GtkTextWindowType", G_STRLOC);
|
|
return NULL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_get_window_type:
|
|
* @text_view: a #GtkTextView
|
|
* @window: a window type
|
|
*
|
|
* Usually used to find out which window an event corresponds to.
|
|
* If you connect to an event signal on @text_view, this function
|
|
* should be called on <literal>event->window</literal> to
|
|
* see which window it was.
|
|
*
|
|
* Return value: the window type.
|
|
**/
|
|
GtkTextWindowType
|
|
gtk_text_view_get_window_type (GtkTextView *text_view,
|
|
GdkWindow *window)
|
|
{
|
|
GtkTextWindow *win;
|
|
|
|
g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
|
|
g_return_val_if_fail (GDK_IS_WINDOW (text_view), 0);
|
|
|
|
if (window == GTK_WIDGET (text_view)->window)
|
|
return GTK_TEXT_WINDOW_WIDGET;
|
|
|
|
win = g_object_get_qdata (G_OBJECT (window),
|
|
g_quark_try_string ("gtk-text-view-text-window"));
|
|
|
|
if (win)
|
|
return win->type;
|
|
else
|
|
{
|
|
return GTK_TEXT_WINDOW_PRIVATE;
|
|
}
|
|
}
|
|
|
|
static void
|
|
buffer_to_widget (GtkTextView *text_view,
|
|
gint buffer_x,
|
|
gint buffer_y,
|
|
gint *window_x,
|
|
gint *window_y)
|
|
{
|
|
if (window_x)
|
|
{
|
|
*window_x = buffer_x - text_view->xoffset + FOCUS_EDGE_WIDTH;
|
|
if (text_view->left_window)
|
|
*window_x += text_view->left_window->allocation.width;
|
|
}
|
|
|
|
if (window_y)
|
|
{
|
|
*window_y = buffer_y - text_view->yoffset + FOCUS_EDGE_WIDTH;
|
|
if (text_view->top_window)
|
|
*window_y += text_view->top_window->allocation.height;
|
|
}
|
|
}
|
|
|
|
static void
|
|
widget_to_text_window (GtkTextWindow *win,
|
|
gint widget_x,
|
|
gint widget_y,
|
|
gint *window_x,
|
|
gint *window_y)
|
|
{
|
|
if (window_x)
|
|
*window_x = widget_x - win->allocation.x;
|
|
|
|
if (window_y)
|
|
*window_y = widget_y - win->allocation.y;
|
|
}
|
|
|
|
static void
|
|
buffer_to_text_window (GtkTextView *text_view,
|
|
GtkTextWindow *win,
|
|
gint buffer_x,
|
|
gint buffer_y,
|
|
gint *window_x,
|
|
gint *window_y)
|
|
{
|
|
if (win == NULL)
|
|
{
|
|
g_warning ("Attempt to convert text buffer coordinates to coordinates "
|
|
"for a nonexistent or private child window of GtkTextView");
|
|
return;
|
|
}
|
|
|
|
buffer_to_widget (text_view,
|
|
buffer_x, buffer_y,
|
|
window_x, window_y);
|
|
|
|
widget_to_text_window (win,
|
|
window_x ? *window_x : 0,
|
|
window_y ? *window_y : 0,
|
|
window_x,
|
|
window_y);
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_buffer_to_window_coords:
|
|
* @text_view: a #GtkTextView
|
|
* @win: a #GtkTextWindowType
|
|
* @buffer_x: buffer x coordinate
|
|
* @buffer_y: buffer y coordinate
|
|
* @window_x: window x coordinate return location
|
|
* @window_y: window y coordinate return location
|
|
*
|
|
* Converts coordinate (@buffer_x, @buffer_y) to coordinates for the window
|
|
* @win, and stores the result in (@window_x, @window_y).
|
|
**/
|
|
void
|
|
gtk_text_view_buffer_to_window_coords (GtkTextView *text_view,
|
|
GtkTextWindowType win,
|
|
gint buffer_x,
|
|
gint buffer_y,
|
|
gint *window_x,
|
|
gint *window_y)
|
|
{
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
|
|
|
|
switch (win)
|
|
{
|
|
case GTK_TEXT_WINDOW_WIDGET:
|
|
buffer_to_widget (text_view,
|
|
buffer_x, buffer_y,
|
|
window_x, window_y);
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_TEXT:
|
|
if (window_x)
|
|
*window_x = buffer_x - text_view->xoffset;
|
|
if (window_y)
|
|
*window_y = buffer_y - text_view->yoffset;
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_LEFT:
|
|
buffer_to_text_window (text_view,
|
|
text_view->left_window,
|
|
buffer_x, buffer_y,
|
|
window_x, window_y);
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_RIGHT:
|
|
buffer_to_text_window (text_view,
|
|
text_view->right_window,
|
|
buffer_x, buffer_y,
|
|
window_x, window_y);
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_TOP:
|
|
buffer_to_text_window (text_view,
|
|
text_view->top_window,
|
|
buffer_x, buffer_y,
|
|
window_x, window_y);
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_BOTTOM:
|
|
buffer_to_text_window (text_view,
|
|
text_view->bottom_window,
|
|
buffer_x, buffer_y,
|
|
window_x, window_y);
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_PRIVATE:
|
|
g_warning ("%s: can't get coords for private windows", G_STRLOC);
|
|
break;
|
|
|
|
default:
|
|
g_warning ("%s: Unknown GtkTextWindowType", G_STRLOC);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
widget_to_buffer (GtkTextView *text_view,
|
|
gint widget_x,
|
|
gint widget_y,
|
|
gint *buffer_x,
|
|
gint *buffer_y)
|
|
{
|
|
if (buffer_x)
|
|
{
|
|
*buffer_x = widget_x - FOCUS_EDGE_WIDTH + text_view->xoffset;
|
|
if (text_view->left_window)
|
|
*buffer_x -= text_view->left_window->allocation.width;
|
|
}
|
|
|
|
if (buffer_y)
|
|
{
|
|
*buffer_y = widget_y - FOCUS_EDGE_WIDTH + text_view->yoffset;
|
|
if (text_view->top_window)
|
|
*buffer_y -= text_view->top_window->allocation.height;
|
|
}
|
|
}
|
|
|
|
static void
|
|
text_window_to_widget (GtkTextWindow *win,
|
|
gint window_x,
|
|
gint window_y,
|
|
gint *widget_x,
|
|
gint *widget_y)
|
|
{
|
|
if (widget_x)
|
|
*widget_x = window_x + win->allocation.x;
|
|
|
|
if (widget_y)
|
|
*widget_y = window_y + win->allocation.y;
|
|
}
|
|
|
|
static void
|
|
text_window_to_buffer (GtkTextView *text_view,
|
|
GtkTextWindow *win,
|
|
gint window_x,
|
|
gint window_y,
|
|
gint *buffer_x,
|
|
gint *buffer_y)
|
|
{
|
|
if (win == NULL)
|
|
{
|
|
g_warning ("Attempt to convert GtkTextView buffer coordinates into "
|
|
"coordinates for a nonexistent child window.");
|
|
return;
|
|
}
|
|
|
|
text_window_to_widget (win,
|
|
window_x,
|
|
window_y,
|
|
buffer_x,
|
|
buffer_y);
|
|
|
|
widget_to_buffer (text_view,
|
|
buffer_x ? *buffer_x : 0,
|
|
buffer_y ? *buffer_y : 0,
|
|
buffer_x,
|
|
buffer_y);
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_window_to_buffer_coords:
|
|
* @text_view: a #GtkTextView
|
|
* @win: a #GtkTextWindowType
|
|
* @window_x: window x coordinate
|
|
* @window_y: window y coordinate
|
|
* @buffer_x: buffer x coordinate return location
|
|
* @buffer_y: buffer y coordinate return location
|
|
*
|
|
* Converts coordinates on the window identified by @win to buffer
|
|
* coordinates, storing the result in (@buffer_x,@buffer_y).
|
|
**/
|
|
void
|
|
gtk_text_view_window_to_buffer_coords (GtkTextView *text_view,
|
|
GtkTextWindowType win,
|
|
gint window_x,
|
|
gint window_y,
|
|
gint *buffer_x,
|
|
gint *buffer_y)
|
|
{
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
|
|
|
|
switch (win)
|
|
{
|
|
case GTK_TEXT_WINDOW_WIDGET:
|
|
widget_to_buffer (text_view,
|
|
window_x, window_y,
|
|
buffer_x, buffer_y);
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_TEXT:
|
|
if (buffer_x)
|
|
*buffer_x = window_x + text_view->xoffset;
|
|
if (buffer_y)
|
|
*buffer_y = window_y + text_view->yoffset;
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_LEFT:
|
|
text_window_to_buffer (text_view,
|
|
text_view->left_window,
|
|
window_x, window_y,
|
|
buffer_x, buffer_y);
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_RIGHT:
|
|
text_window_to_buffer (text_view,
|
|
text_view->right_window,
|
|
window_x, window_y,
|
|
buffer_x, buffer_y);
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_TOP:
|
|
text_window_to_buffer (text_view,
|
|
text_view->top_window,
|
|
window_x, window_y,
|
|
buffer_x, buffer_y);
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_BOTTOM:
|
|
text_window_to_buffer (text_view,
|
|
text_view->bottom_window,
|
|
window_x, window_y,
|
|
buffer_x, buffer_y);
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_PRIVATE:
|
|
g_warning ("%s: can't get coords for private windows", G_STRLOC);
|
|
break;
|
|
|
|
default:
|
|
g_warning ("%s: Unknown GtkTextWindowType", G_STRLOC);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
set_window_width (GtkTextView *text_view,
|
|
gint width,
|
|
GtkTextWindowType type,
|
|
GtkTextWindow **winp)
|
|
{
|
|
if (width == 0)
|
|
{
|
|
if (*winp)
|
|
{
|
|
text_window_free (*winp);
|
|
*winp = NULL;
|
|
gtk_widget_queue_resize (GTK_WIDGET (text_view));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (*winp == NULL)
|
|
{
|
|
*winp = text_window_new (type,
|
|
GTK_WIDGET (text_view),
|
|
width, 0);
|
|
}
|
|
else
|
|
{
|
|
if ((*winp)->requisition.width == width)
|
|
return;
|
|
}
|
|
|
|
gtk_widget_queue_resize (GTK_WIDGET (text_view));
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
set_window_height (GtkTextView *text_view,
|
|
gint height,
|
|
GtkTextWindowType type,
|
|
GtkTextWindow **winp)
|
|
{
|
|
if (height == 0)
|
|
{
|
|
if (*winp)
|
|
{
|
|
text_window_free (*winp);
|
|
*winp = NULL;
|
|
gtk_widget_queue_resize (GTK_WIDGET (text_view));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (*winp == NULL)
|
|
{
|
|
*winp = text_window_new (type,
|
|
GTK_WIDGET (text_view),
|
|
0, height);
|
|
}
|
|
else
|
|
{
|
|
if ((*winp)->requisition.height == height)
|
|
return;
|
|
}
|
|
|
|
gtk_widget_queue_resize (GTK_WIDGET (text_view));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_set_border_window_size:
|
|
* @text_view: a #GtkTextView
|
|
* @type: window to affect
|
|
* @size: width or height of the window
|
|
*
|
|
* Sets the width of %GTK_TEXT_WINDOW_LEFT or %GTK_TEXT_WINDOW_RIGHT,
|
|
* or the height of %GTK_TEXT_WINDOW_TOP or %GTK_TEXT_WINDOW_BOTTOM.
|
|
* Automatically destroys the corresponding window if the size is set to 0,
|
|
* and creates the window if the size is set to non-zero.
|
|
**/
|
|
void
|
|
gtk_text_view_set_border_window_size (GtkTextView *text_view,
|
|
GtkTextWindowType type,
|
|
gint size)
|
|
|
|
{
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
|
|
g_return_if_fail (size >= 0);
|
|
g_return_if_fail (type != GTK_TEXT_WINDOW_WIDGET);
|
|
g_return_if_fail (type != GTK_TEXT_WINDOW_TEXT);
|
|
|
|
switch (type)
|
|
{
|
|
case GTK_TEXT_WINDOW_LEFT:
|
|
set_window_width (text_view, size, GTK_TEXT_WINDOW_LEFT,
|
|
&text_view->left_window);
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_RIGHT:
|
|
set_window_width (text_view, size, GTK_TEXT_WINDOW_RIGHT,
|
|
&text_view->right_window);
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_TOP:
|
|
set_window_height (text_view, size, GTK_TEXT_WINDOW_TOP,
|
|
&text_view->top_window);
|
|
break;
|
|
|
|
case GTK_TEXT_WINDOW_BOTTOM:
|
|
set_window_height (text_view, size, GTK_TEXT_WINDOW_BOTTOM,
|
|
&text_view->bottom_window);
|
|
break;
|
|
|
|
default:
|
|
g_warning ("Can't set size of center or widget or private GtkTextWindowType in %s", G_STRLOC);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_text_view_set_text_window_size:
|
|
* @text_view: a #GtkTextView
|
|
* @width: a width in pixels
|
|
* @height: a height in pixels
|
|
*
|
|
* Sets the size request for the main text window (%GTK_TEXT_WINDOW_TEXT).
|
|
* If the widget gets more space than it requested, the main text window
|
|
* will be larger than this.
|
|
*
|
|
**/
|
|
void
|
|
gtk_text_view_set_text_window_size (GtkTextView *text_view,
|
|
gint width,
|
|
gint height)
|
|
{
|
|
GtkTextWindow *win;
|
|
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
|
|
g_return_if_fail (width > 0);
|
|
g_return_if_fail (height > 0);
|
|
|
|
win = text_view->text_window;
|
|
|
|
if (win->requisition.width == width &&
|
|
win->requisition.height == height)
|
|
return;
|
|
|
|
win->requisition.width = width;
|
|
win->requisition.height = height;
|
|
|
|
gtk_widget_queue_resize (GTK_WIDGET (text_view));
|
|
}
|
|
|
|
/*
|
|
* Child widgets
|
|
*/
|
|
|
|
static GtkTextViewChild*
|
|
text_view_child_new_anchored (GtkWidget *child,
|
|
GtkTextChildAnchor *anchor,
|
|
GtkTextLayout *layout)
|
|
{
|
|
GtkTextViewChild *vc;
|
|
|
|
vc = g_new (GtkTextViewChild, 1);
|
|
|
|
vc->widget = child;
|
|
vc->anchor = anchor;
|
|
|
|
g_object_ref (G_OBJECT (vc->widget));
|
|
g_object_ref (G_OBJECT (vc->anchor));
|
|
|
|
gtk_object_set_data (GTK_OBJECT (child),
|
|
"gtk-text-view-child",
|
|
vc);
|
|
|
|
gtk_text_child_anchor_register_child (anchor, child, layout);
|
|
|
|
return vc;
|
|
}
|
|
|
|
static GtkTextViewChild*
|
|
text_view_child_new_window (GtkWidget *child,
|
|
GtkTextWindowType type,
|
|
gint x,
|
|
gint y)
|
|
{
|
|
GtkTextViewChild *vc;
|
|
|
|
vc = g_new (GtkTextViewChild, 1);
|
|
|
|
vc->widget = child;
|
|
vc->anchor = NULL;
|
|
|
|
g_object_ref (G_OBJECT (vc->widget));
|
|
|
|
vc->type = type;
|
|
vc->x = x;
|
|
vc->y = y;
|
|
|
|
return vc;
|
|
}
|
|
|
|
static void
|
|
text_view_child_free (GtkTextViewChild *child)
|
|
{
|
|
|
|
gtk_object_remove_data (GTK_OBJECT (child->widget),
|
|
"gtk-text-view-child");
|
|
|
|
if (child->anchor)
|
|
{
|
|
gtk_text_child_anchor_unregister_child (child->anchor,
|
|
child->widget);
|
|
g_object_unref (G_OBJECT (child->anchor));
|
|
}
|
|
|
|
g_object_unref (G_OBJECT (child->widget));
|
|
|
|
g_free (child);
|
|
}
|
|
|
|
static void
|
|
text_view_child_realize (GtkTextView *text_view,
|
|
GtkTextViewChild *vc)
|
|
{
|
|
if (vc->anchor)
|
|
gtk_widget_set_parent_window (vc->widget,
|
|
text_view->text_window->bin_window);
|
|
else
|
|
{
|
|
GdkWindow *window;
|
|
window = gtk_text_view_get_window (text_view,
|
|
vc->type);
|
|
gtk_widget_set_parent_window (vc->widget, window);
|
|
}
|
|
|
|
gtk_widget_realize (vc->widget);
|
|
}
|
|
|
|
static void
|
|
add_child (GtkTextView *text_view,
|
|
GtkTextViewChild *vc)
|
|
{
|
|
text_view->children = g_slist_prepend (text_view->children,
|
|
vc);
|
|
|
|
gtk_widget_set_parent (vc->widget, GTK_WIDGET (text_view));
|
|
|
|
if (GTK_WIDGET_REALIZED (text_view))
|
|
text_view_child_realize (text_view, vc);
|
|
|
|
if (GTK_WIDGET_VISIBLE (text_view) && GTK_WIDGET_VISIBLE (vc->widget))
|
|
{
|
|
if (GTK_WIDGET_MAPPED (text_view))
|
|
gtk_widget_map (vc->widget);
|
|
|
|
gtk_widget_queue_resize (vc->widget);
|
|
}
|
|
}
|
|
|
|
void
|
|
gtk_text_view_add_child_at_anchor (GtkTextView *text_view,
|
|
GtkWidget *child,
|
|
GtkTextChildAnchor *anchor)
|
|
{
|
|
GtkTextViewChild *vc;
|
|
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
|
|
g_return_if_fail (GTK_IS_WIDGET (child));
|
|
g_return_if_fail (GTK_IS_TEXT_CHILD_ANCHOR (anchor));
|
|
g_return_if_fail (child->parent == NULL);
|
|
|
|
gtk_text_view_ensure_layout (text_view);
|
|
|
|
vc = text_view_child_new_anchored (child, anchor,
|
|
text_view->layout);
|
|
|
|
add_child (text_view, vc);
|
|
}
|
|
|
|
void
|
|
gtk_text_view_add_child_in_window (GtkTextView *text_view,
|
|
GtkWidget *child,
|
|
GtkTextWindowType which_window,
|
|
gint xpos,
|
|
gint ypos)
|
|
{
|
|
GtkTextViewChild *vc;
|
|
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
|
|
g_return_if_fail (GTK_IS_WIDGET (child));
|
|
g_return_if_fail (xpos >= 0);
|
|
g_return_if_fail (ypos >= 0);
|
|
g_return_if_fail (child->parent == NULL);
|
|
|
|
vc = text_view_child_new_window (child, which_window,
|
|
xpos, ypos);
|
|
|
|
add_child (text_view, vc);
|
|
}
|
|
|
|
void
|
|
gtk_text_view_move_child (GtkTextView *text_view,
|
|
GtkWidget *child,
|
|
gint xpos,
|
|
gint ypos)
|
|
{
|
|
GtkTextViewChild *vc;
|
|
|
|
g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
|
|
g_return_if_fail (GTK_IS_WIDGET (child));
|
|
g_return_if_fail (xpos >= 0);
|
|
g_return_if_fail (ypos >= 0);
|
|
g_return_if_fail (child->parent == (GtkWidget*) text_view);
|
|
|
|
vc = gtk_object_get_data (GTK_OBJECT (child),
|
|
"gtk-text-view-child");
|
|
|
|
g_assert (vc != NULL);
|
|
|
|
vc->x = xpos;
|
|
vc->y = ypos;
|
|
|
|
if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (text_view))
|
|
gtk_widget_queue_resize (child);
|
|
}
|
|
|
|
|