forked from AuroraMiddleware/gtk
7a958797e2
2000-12-31 Havoc Pennington <hp@pobox.com> * gtk/gtktextview.c: Rearrange all the scroll-while-dragging-or-selecting code to be different, not necessarily better. ;-) (gtk_text_view_scroll_to_mark): Change this function to take within_margin as a fraction instead of a pixel value, and to take alignment arguments (indicating where to align the mark inside the visible area) * gtk/testtextbuffer.c (fill_buffer): fix bad cast of GtkTextTag to GtkObject * gtk/gtktextiter.c (gtk_text_iter_set_line_offset): change behavior so that offsets past the end of the line are not allowed, and an offset equal to the line length moves the iterator to the next line (gtk_text_iter_set_line_index): make parallel change (gtk_text_iter_get_bytes_in_line): add this function * gtk/gtktextbtree.c (_gtk_text_line_byte_locate): change handling of byte indexes off the end of the line; byte index at the end of the line now returns FALSE and doesn't fill in the requested values, byte index past the end of the line is an error. Also, don't allow -1 offset anymore, since its meaning is unclear. This change exposes some bug in visual cursor motion, where we end up with a huge invalid byte index; needs fixing. Symptom of bug is a crash when you hit up arrow. (_gtk_text_line_char_locate): match the change to byte_locate * gtk/gtktextiter.c (find_by_log_attrs): Handle iteration backward from start of line properly. fixes bug reported by Mikael Hermansson where backspace would delete all text before the cursor.
307 lines
15 KiB
C
307 lines
15 KiB
C
/* GTK - The GIMP Toolkit
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* gtktextview.h 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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#ifndef GTK_TEXT_VIEW_H
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#define GTK_TEXT_VIEW_H
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#include <gtk/gtkcontainer.h>
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#include <gtk/gtkimcontext.h>
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#include <gtk/gtktextbuffer.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define GTK_TYPE_TEXT_VIEW (gtk_text_view_get_type ())
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#define GTK_TEXT_VIEW(obj) (GTK_CHECK_CAST ((obj), GTK_TYPE_TEXT_VIEW, GtkTextView))
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#define GTK_TEXT_VIEW_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GTK_TYPE_TEXT_VIEW, GtkTextViewClass))
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#define GTK_IS_TEXT_VIEW(obj) (GTK_CHECK_TYPE ((obj), GTK_TYPE_TEXT_VIEW))
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#define GTK_IS_TEXT_VIEW_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GTK_TYPE_TEXT_VIEW))
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#define GTK_TEXT_VIEW_GET_CLASS(obj) (GTK_CHECK_GET_CLASS ((obj), GTK_TYPE_TEXT_VIEW, GtkTextViewClass))
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typedef enum
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{
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GTK_TEXT_WINDOW_PRIVATE,
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GTK_TEXT_WINDOW_WIDGET,
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GTK_TEXT_WINDOW_TEXT,
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GTK_TEXT_WINDOW_LEFT,
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GTK_TEXT_WINDOW_RIGHT,
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GTK_TEXT_WINDOW_TOP,
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GTK_TEXT_WINDOW_BOTTOM
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} GtkTextWindowType;
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typedef struct _GtkTextView GtkTextView;
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typedef struct _GtkTextViewClass GtkTextViewClass;
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/* Internal private type. */
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typedef struct _GtkTextWindow GtkTextWindow;
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struct _GtkTextView
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{
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GtkContainer parent_instance;
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struct _GtkTextLayout *layout;
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GtkTextBuffer *buffer;
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guint selection_drag_handler;
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guint scroll_timeout;
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/* Default style settings */
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gint pixels_above_lines;
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gint pixels_below_lines;
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gint pixels_inside_wrap;
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GtkWrapMode wrap_mode;
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GtkJustification justify;
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gint left_margin;
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gint right_margin;
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gint indent;
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PangoTabArray *tabs;
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guint editable : 1;
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guint overwrite_mode : 1;
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guint cursor_visible : 1;
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guint need_im_reset : 1; /* If we have reset the IM since the last character entered */
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/* just selected a word or line via double/triple click */
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guint just_selected_element : 1;
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GtkTextWindow *text_window;
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GtkTextWindow *left_window;
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GtkTextWindow *right_window;
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GtkTextWindow *top_window;
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GtkTextWindow *bottom_window;
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GtkAdjustment *hadjustment;
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GtkAdjustment *vadjustment;
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gint xoffset; /* Offsets between widget coordinates and buffer coordinates */
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gint yoffset;
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gint width; /* Width and height of the buffer */
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gint height;
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/* The virtual cursor position is normally the same as the
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* actual (strong) cursor position, except in two circumstances:
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*
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* a) When the cursor is moved vertically with the keyboard
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* b) When the text view is scrolled with the keyboard
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*
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* In case a), virtual_cursor_x is preserved, but not virtual_cursor_y
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* In case b), both virtual_cursor_x and virtual_cursor_y are preserved.
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*/
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gint virtual_cursor_x; /* -1 means use actual cursor position */
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gint virtual_cursor_y; /* -1 means use actual cursor position */
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GtkTextMark *first_para_mark; /* Mark at the beginning of the first onscreen paragraph */
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gint first_para_pixels; /* Offset of top of screen in the first onscreen paragraph */
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GtkTextMark *dnd_mark;
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guint blink_timeout;
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guint preblink_timeout;
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guint first_validate_idle; /* Idle to revalidate onscreen portion, runs before resize */
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guint incremental_validate_idle; /* Idle to revalidate offscreen portions, runs after redraw */
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GtkIMContext *im_context;
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GtkWidget *popup_menu;
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gint drag_start_x;
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gint drag_start_y;
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GSList *children;
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};
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struct _GtkTextViewClass
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{
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GtkContainerClass parent_class;
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/* These are all RUN_ACTION signals for keybindings */
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/* move insertion point */
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void (* 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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/* move the "anchor" (what Emacs calls the mark) to the cursor position */
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void (* set_anchor) (GtkTextView *text_view);
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/* Edits */
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void (* insert_at_cursor) (GtkTextView *text_view,
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const gchar *str);
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void (* delete_from_cursor) (GtkTextView *text_view,
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GtkDeleteType type,
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gint count);
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/* cut copy paste */
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void (* cut_clipboard) (GtkTextView *text_view);
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void (* copy_clipboard) (GtkTextView *text_view);
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void (* paste_clipboard) (GtkTextView *text_view);
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/* overwrite */
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void (* toggle_overwrite) (GtkTextView *text_view);
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void (* set_scroll_adjustments) (GtkTextView *text_view,
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GtkAdjustment *hadjustment,
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GtkAdjustment *vadjustment);
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};
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GtkType gtk_text_view_get_type (void) G_GNUC_CONST;
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GtkWidget * gtk_text_view_new (void);
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GtkWidget * gtk_text_view_new_with_buffer (GtkTextBuffer *buffer);
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void gtk_text_view_set_buffer (GtkTextView *text_view,
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GtkTextBuffer *buffer);
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GtkTextBuffer *gtk_text_view_get_buffer (GtkTextView *text_view);
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gboolean gtk_text_view_scroll_to_mark (GtkTextView *text_view,
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GtkTextMark *mark,
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gdouble within_margin,
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gboolean use_align,
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gdouble xalign,
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gdouble yalign);
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gboolean gtk_text_view_scroll_mark_onscreen (GtkTextView *text_view,
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GtkTextMark *mark);
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gboolean gtk_text_view_move_mark_onscreen (GtkTextView *text_view,
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GtkTextMark *mark);
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gboolean gtk_text_view_place_cursor_onscreen (GtkTextView *text_view);
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void gtk_text_view_get_visible_rect (GtkTextView *text_view,
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GdkRectangle *visible_rect);
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void gtk_text_view_set_cursor_visible (GtkTextView *text_view,
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gboolean setting);
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gboolean gtk_text_view_get_cursor_visible (GtkTextView *text_view);
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void gtk_text_view_get_iter_location (GtkTextView *text_view,
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const GtkTextIter *iter,
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GdkRectangle *location);
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void gtk_text_view_get_iter_at_location (GtkTextView *text_view,
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GtkTextIter *iter,
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gint x,
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gint y);
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void gtk_text_view_get_line_yrange (GtkTextView *text_view,
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const GtkTextIter *iter,
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gint *y,
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gint *height);
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void gtk_text_view_get_line_at_y (GtkTextView *text_view,
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GtkTextIter *target_iter,
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gint y,
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gint *line_top);
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void gtk_text_view_buffer_to_window_coords (GtkTextView *text_view,
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GtkTextWindowType win,
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gint buffer_x,
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gint buffer_y,
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gint *window_x,
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gint *window_y);
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void gtk_text_view_window_to_buffer_coords (GtkTextView *text_view,
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GtkTextWindowType win,
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gint window_x,
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gint window_y,
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gint *buffer_x,
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gint *buffer_y);
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GdkWindow* gtk_text_view_get_window (GtkTextView *text_view,
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GtkTextWindowType win);
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GtkTextWindowType gtk_text_view_get_window_type (GtkTextView *text_view,
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GdkWindow *window);
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void gtk_text_view_set_border_window_size (GtkTextView *text_view,
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GtkTextWindowType type,
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gint size);
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void gtk_text_view_set_text_window_size (GtkTextView *text_view,
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gint width,
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gint height);
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gboolean gtk_text_view_forward_display_line (GtkTextView *text_view,
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GtkTextIter *iter);
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gboolean gtk_text_view_backward_display_line (GtkTextView *text_view,
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GtkTextIter *iter);
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gboolean gtk_text_view_forward_display_line_end (GtkTextView *text_view,
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GtkTextIter *iter);
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gboolean gtk_text_view_backward_display_line_start (GtkTextView *text_view,
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GtkTextIter *iter);
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gboolean gtk_text_view_starts_display_line (GtkTextView *text_view,
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const GtkTextIter *iter);
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gboolean gtk_text_view_move_visually (GtkTextView *text_view,
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GtkTextIter *iter,
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gint count);
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/* Adding child widgets */
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void gtk_text_view_add_child_at_anchor (GtkTextView *text_view,
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GtkWidget *child,
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GtkTextChildAnchor *anchor);
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void gtk_text_view_add_child_in_window (GtkTextView *text_view,
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GtkWidget *child,
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GtkTextWindowType which_window,
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/* window coordinates */
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gint xpos,
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gint ypos);
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void gtk_text_view_move_child (GtkTextView *text_view,
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GtkWidget *child,
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/* window coordinates */
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gint xpos,
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gint ypos);
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/* Default style settings (fallbacks if no tag affects the property) */
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void gtk_text_view_set_wrap_mode (GtkTextView *text_view,
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GtkWrapMode wrap_mode);
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GtkWrapMode gtk_text_view_get_wrap_mode (GtkTextView *text_view);
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void gtk_text_view_set_editable (GtkTextView *text_view,
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gboolean setting);
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gboolean gtk_text_view_get_editable (GtkTextView *text_view);
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void gtk_text_view_set_pixels_above_lines (GtkTextView *text_view,
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gint pixels_above_lines);
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gint gtk_text_view_get_pixels_above_lines (GtkTextView *text_view);
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void gtk_text_view_set_pixels_below_lines (GtkTextView *text_view,
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gint pixels_below_lines);
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gint gtk_text_view_get_pixels_below_lines (GtkTextView *text_view);
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void gtk_text_view_set_pixels_inside_wrap (GtkTextView *text_view,
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gint pixels_inside_wrap);
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gint gtk_text_view_get_pixels_inside_wrap (GtkTextView *text_view);
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void gtk_text_view_set_justification (GtkTextView *text_view,
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GtkJustification justification);
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GtkJustification gtk_text_view_get_justification (GtkTextView *text_view);
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void gtk_text_view_set_left_margin (GtkTextView *text_view,
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gint left_margin);
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gint gtk_text_view_get_left_margin (GtkTextView *text_view);
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void gtk_text_view_set_right_margin (GtkTextView *text_view,
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gint right_margin);
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gint gtk_text_view_get_right_margin (GtkTextView *text_view);
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void gtk_text_view_set_indent (GtkTextView *text_view,
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gint indent);
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gint gtk_text_view_get_indent (GtkTextView *text_view);
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void gtk_text_view_set_tabs (GtkTextView *text_view,
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PangoTabArray *tabs);
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PangoTabArray* gtk_text_view_get_tabs (GtkTextView *text_view);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* GTK_TEXT_VIEW_H */
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