AuroraMiddleware/gtk2
1
0
Fork 0
forked from AuroraMiddleware/gtk
Code Issues Pull Requests Projects Releases Wiki Activity
5cd2993201
gtk2/gtk/gtkentry.c
Havoc Pennington ef4356b567 adapt to handle PangoColor 
2001-01-26  Havoc Pennington  <hp@redhat.com>

	* gtk/gtktextlayout.c (convert_color): adapt to handle PangoColor

	* gtk/gtktreeview.c (gtk_tree_view_widget_to_tree_coords): fix to
	not offset by TREE_VIEW_HEADER_HEIGHT
	(gtk_tree_view_tree_to_widget_coords): fix to not offset by
	TREE_VIEW_HEADER_HEIGHT

	* configure.in (included_loaders): for me, --with-included-loaders
	generates the error "the specified loader yes does not exist",
	i.e. the arg defaults to "yes", so change test for value ""
	to test for value "yes", and include all loaders in that case.

	* gtk/gtkrbtree.c (_gtk_rbtree_get_depth): new function

	* gtk/gtktreeview.c (gtk_tree_view_get_cell_rect): fix to properly
	handle TREE_VIEW_VERTICAL_SEPARATOR
	(gtk_tree_view_bin_expose): fix to consider the row offset as
	pointing halfway into vertical separator.
	(gtk_tree_view_draw_node_focus_rect): ditto

	* gtk/gtkdebug.h, gtk/gtkmain.c (gtk_init_check): Add
	--gtk-debug=updates, which causes gdk_window_set_debug_updates
	(TRUE) to be called.

	* gdk/gdkwindow.c (gdk_window_set_debug_updates): Allow enabling a
	debug mode where the invalid region is colored in on invalidate,
	so you can see the flicker and know whether your redraw code is
	doing a good job.

	* gtk/gtktreeview.c (gtk_tree_view_queue_draw_node): Work in
	tree window coordinates (clip rect is in tree window coords)

	* gtk/Makefile.am: add gtktreednd.[hc]

	* gtk/gtkliststore.c: implement gtktreednd interfaces.

	* gtk/gtktreednd.c, gtk/gtktreednd.h: New interface to support
	drag-and-drop data operations on a model (so we can set up tree
	drag-and-drop automatically)

	* gtk/testgtk.c: Add a window to change sensitivity in the
	GtkLabel test; add a way to change the entry frame in GtkEntry
	test

	* gtk/gtkentry.c (gtk_entry_set_has_frame):
	(gtk_entry_get_has_frame): new functions to remove the frame
	around an entry
	(gtk_entry_size_request): shrink requisition if no frame
	(gtk_entry_draw_focus): don't draw frame if no frame

	* gtk/gtkstyle.c (gtk_default_draw_check): draw custom look for
	checks inside a cell renderer
	(gtk_default_draw_option): ditto for options

	* gtk/gtktreeviewcolumn.c (update_button_contents): add/remove
	children from the alignment, not the button
	(gtk_tree_view_column_init): ref/sink the column, to emulate
	GObject refcounting.

	* gtk/gtkcellrenderer.c (gtk_cell_renderer_init): ref/sink

	* gtk/gtkcellrenderertoggle.c (gtk_cell_renderer_toggle_render):
	Use theme functions to draw the toggles

	* gdk/gdkpango.c (gdk_pango_get_gc): use GdkRGB to alloc colors

	* gdk/gdkpango.h, gdk/gdkpango.c: Add GdkPangoAttrStipple and
	GdkPangoAttrEmbossed to use in rendering insensitive text

	* gdk/gdkpango.c (gdk_draw_layout_line): render new properties

	* gtk/gtkstyle.c (gtk_default_draw_layout): handle sensitivity
	using new GDK features
2001-01-26 21:12:05 +00:00

2875 lines
78 KiB
C
Raw Blame History

/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include <string.h>
#include <pango/pango.h>
#include "gdk/gdkkeysyms.h"
#include "gtkbindings.h"
#include "gtkclipboard.h"
#include "gtkdnd.h"
#include "gtkentry.h"
#include "gtkimmulticontext.h"
#include "gtkintl.h"
#include "gtkmain.h"
#include "gtkmenu.h"
#include "gtkmenuitem.h"
#include "gtkselection.h"
#include "gtksignal.h"
#define MIN_ENTRY_WIDTH 150
#define DRAW_TIMEOUT 20
#define INNER_BORDER 2
/* Initial size of buffer, in bytes */
#define MIN_SIZE 16
/* Maximum size of text buffer, in bytes */
#define MAX_SIZE G_MAXUSHORT
enum {
INSERT_TEXT,
DELETE_TEXT,
CHANGED,
ACTIVATE,
MOVE_CURSOR,
INSERT_AT_CURSOR,
DELETE_FROM_CURSOR,
CUT_CLIPBOARD,
COPY_CLIPBOARD,
PASTE_CLIPBOARD,
TOGGLE_OVERWRITE,
LAST_SIGNAL
};
enum {
ARG_0,
ARG_TEXT_POSITION,
ARG_EDITABLE,
ARG_MAX_LENGTH,
ARG_VISIBILITY,
ARG_INVISIBLE_CHAR
};
static guint signals[LAST_SIGNAL] = { 0 };
typedef enum {
CURSOR_STANDARD,
CURSOR_DND
} CursorType;
static GtkTargetEntry target_table[] = {
{ "UTF8_STRING", 0, 0 },
{ "COMPOUND_TEXT", 0, 0 },
{ "TEXT", 0, 0 },
{ "text/plain", 0, 0 },
{ "STRING", 0, 0 }
};
/* GObject, GtkObject methods
*/
static void gtk_entry_class_init (GtkEntryClass *klass);
static void gtk_entry_editable_init (GtkEditableClass *iface);
static void gtk_entry_init (GtkEntry *entry);
static void gtk_entry_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_entry_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_entry_finalize (GObject *object);
/* GtkWidget methods
*/
static void gtk_entry_realize (GtkWidget *widget);
static void gtk_entry_unrealize (GtkWidget *widget);
static void gtk_entry_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_entry_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_entry_draw_focus (GtkWidget *widget);
static gint gtk_entry_expose (GtkWidget *widget,
GdkEventExpose *event);
static gint gtk_entry_button_press (GtkWidget *widget,
GdkEventButton *event);
static gint gtk_entry_button_release (GtkWidget *widget,
GdkEventButton *event);
static gint gtk_entry_motion_notify (GtkWidget *widget,
GdkEventMotion *event);
static gint gtk_entry_key_press (GtkWidget *widget,
GdkEventKey *event);
static gint gtk_entry_focus_in (GtkWidget *widget,
GdkEventFocus *event);
static gint gtk_entry_focus_out (GtkWidget *widget,
GdkEventFocus *event);
static void gtk_entry_style_set (GtkWidget *widget,
GtkStyle *previous_style);
static void gtk_entry_direction_changed (GtkWidget *widget,
GtkTextDirection previous_dir);
static void gtk_entry_state_changed (GtkWidget *widget,
GtkStateType previous_state);
static gboolean gtk_entry_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
static void gtk_entry_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time);
static void gtk_entry_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time);
static void gtk_entry_drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time);
static void gtk_entry_drag_data_delete (GtkWidget *widget,
GdkDragContext *context);
/* GtkEditable method implementations
*/
static void gtk_entry_insert_text (GtkEditable *editable,
const gchar *new_text,
gint new_text_length,
gint *position);
static void gtk_entry_delete_text (GtkEditable *editable,
gint start_pos,
gint end_pos);
static gchar * gtk_entry_get_chars (GtkEditable *editable,
gint start_pos,
gint end_pos);
static void gtk_entry_real_set_position (GtkEditable *editable,
gint position);
static gint gtk_entry_get_position (GtkEditable *editable);
static void gtk_entry_set_selection_bounds (GtkEditable *editable,
gint start,
gint end);
static gboolean gtk_entry_get_selection_bounds (GtkEditable *editable,
gint *start,
gint *end);
/* Default signal handlers
*/
static void gtk_entry_real_insert_text (GtkEntry *entry,
const gchar *new_text,
gint new_text_length,
gint *position);
static void gtk_entry_real_delete_text (GtkEntry *entry,
gint start_pos,
gint end_pos);
static void gtk_entry_move_cursor (GtkEntry *entry,
GtkMovementStep step,
gint count,
gboolean extend_selection);
static void gtk_entry_insert_at_cursor (GtkEntry *entry,
const gchar *str);
static void gtk_entry_delete_from_cursor (GtkEntry *entry,
GtkDeleteType type,
gint count);
static void gtk_entry_cut_clipboard (GtkEntry *entry);
static void gtk_entry_copy_clipboard (GtkEntry *entry);
static void gtk_entry_paste_clipboard (GtkEntry *entry);
static void gtk_entry_toggle_overwrite (GtkEntry *entry);
/* IM Context Callbacks
*/
static void gtk_entry_commit_cb (GtkIMContext *context,
const gchar *str,
GtkEntry *entry);
static void gtk_entry_preedit_changed_cb (GtkIMContext *context,
GtkEntry *entry);
/* Internal routines
*/
static void gtk_entry_draw_text (GtkEntry *entry);
static void gtk_entry_draw_cursor (GtkEntry *entry,
CursorType type);
static PangoLayout *gtk_entry_get_layout (GtkEntry *entry,
gboolean include_preedit);
static void gtk_entry_queue_draw (GtkEntry *entry);
static void gtk_entry_reset_im_context (GtkEntry *entry);
static void gtk_entry_recompute (GtkEntry *entry);
static gint gtk_entry_find_position (GtkEntry *entry,
gint x);
static void gtk_entry_get_cursor_locations (GtkEntry *entry,
CursorType type,
gint *strong_x,
gint *weak_x);
static void gtk_entry_adjust_scroll (GtkEntry *entry);
static gint gtk_entry_move_visually (GtkEntry *editable,
gint start,
gint count);
static gint gtk_entry_move_forward_word (GtkEntry *entry,
gint start);
static gint gtk_entry_move_backward_word (GtkEntry *entry,
gint start);
static void gtk_entry_delete_whitespace (GtkEntry *entry);
static void gtk_entry_select_word (GtkEntry *entry);
static void gtk_entry_select_line (GtkEntry *entry);
static char * gtk_entry_get_public_chars (GtkEntry *entry,
gint start,
gint end);
static void gtk_entry_paste (GtkEntry *entry,
GdkAtom selection);
static void gtk_entry_update_primary_selection (GtkEntry *entry);
static void gtk_entry_popup_menu (GtkEntry *entry,
GdkEventButton *event);
static GtkWidgetClass *parent_class = NULL;
GtkType
gtk_entry_get_type (void)
{
static GtkType entry_type = 0;
if (!entry_type)
{
static const GtkTypeInfo entry_info =
{
"GtkEntry",
sizeof (GtkEntry),
sizeof (GtkEntryClass),
(GtkClassInitFunc) gtk_entry_class_init,
(GtkObjectInitFunc) gtk_entry_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
static const GInterfaceInfo editable_info =
{
(GInterfaceInitFunc) gtk_entry_editable_init, /* interface_init */
NULL, /* interface_finalize */
NULL /* interface_data */
};
entry_type = gtk_type_unique (GTK_TYPE_WIDGET, &entry_info);
g_type_add_interface_static (entry_type,
GTK_TYPE_EDITABLE,
&editable_info);
}
return entry_type;
}
static void
add_move_binding (GtkBindingSet *binding_set,
guint keyval,
guint modmask,
GtkMovementStep step,
gint count)
{
g_return_if_fail ((modmask & GDK_SHIFT_MASK) == 0);
gtk_binding_entry_add_signal (binding_set, keyval, modmask,
"move_cursor", 3,
GTK_TYPE_ENUM, step,
G_TYPE_INT, count,
G_TYPE_BOOLEAN, FALSE);
/* Selection-extending version */
gtk_binding_entry_add_signal (binding_set, keyval, modmask | GDK_SHIFT_MASK,
"move_cursor", 3,
GTK_TYPE_ENUM, step,
G_TYPE_INT, count,
G_TYPE_BOOLEAN, TRUE);
}
static void
gtk_entry_class_init (GtkEntryClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (class);
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkBindingSet *binding_set;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
parent_class = gtk_type_class (GTK_TYPE_WIDGET);
gobject_class->finalize = gtk_entry_finalize;
object_class->set_arg = gtk_entry_set_arg;
object_class->get_arg = gtk_entry_get_arg;
widget_class->realize = gtk_entry_realize;
widget_class->unrealize = gtk_entry_unrealize;
widget_class->draw_focus = gtk_entry_draw_focus;
widget_class->size_request = gtk_entry_size_request;
widget_class->size_allocate = gtk_entry_size_allocate;
widget_class->expose_event = gtk_entry_expose;
widget_class->button_press_event = gtk_entry_button_press;
widget_class->button_release_event = gtk_entry_button_release;
widget_class->motion_notify_event = gtk_entry_motion_notify;
widget_class->key_press_event = gtk_entry_key_press;
widget_class->focus_in_event = gtk_entry_focus_in;
widget_class->focus_out_event = gtk_entry_focus_out;
widget_class->style_set = gtk_entry_style_set;
widget_class->direction_changed = gtk_entry_direction_changed;
widget_class->state_changed = gtk_entry_state_changed;
widget_class->drag_motion = gtk_entry_drag_motion;
widget_class->drag_leave = gtk_entry_drag_leave;
widget_class->drag_data_received = gtk_entry_drag_data_received;
widget_class->drag_data_get = gtk_entry_drag_data_get;
widget_class->drag_data_delete = gtk_entry_drag_data_delete;
class->insert_text = gtk_entry_real_insert_text;
class->delete_text = gtk_entry_real_delete_text;
class->move_cursor = gtk_entry_move_cursor;
class->insert_at_cursor = gtk_entry_insert_at_cursor;
class->delete_from_cursor = gtk_entry_delete_from_cursor;
class->cut_clipboard = gtk_entry_cut_clipboard;
class->copy_clipboard = gtk_entry_copy_clipboard;
class->paste_clipboard = gtk_entry_paste_clipboard;
class->toggle_overwrite = gtk_entry_toggle_overwrite;
gtk_object_add_arg_type ("GtkEntry::text_position", GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_TEXT_POSITION);
gtk_object_add_arg_type ("GtkEntry::editable", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_EDITABLE);
gtk_object_add_arg_type ("GtkEntry::max_length", GTK_TYPE_UINT, GTK_ARG_READWRITE, ARG_MAX_LENGTH);
gtk_object_add_arg_type ("GtkEntry::visibility", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_VISIBILITY);
gtk_object_add_arg_type ("GtkEntry::invisible_char", GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_INVISIBLE_CHAR);
signals[INSERT_TEXT] =
gtk_signal_new ("insert_text",
GTK_RUN_LAST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkEntryClass, insert_text),
gtk_marshal_VOID__STRING_INT_POINTER,
GTK_TYPE_NONE,
3,
GTK_TYPE_STRING,
GTK_TYPE_INT,
GTK_TYPE_POINTER);
signals[DELETE_TEXT] =
gtk_signal_new ("delete_text",
GTK_RUN_LAST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkEntryClass, delete_text),
gtk_marshal_VOID__INT_INT,
GTK_TYPE_NONE,
2,
GTK_TYPE_INT,
GTK_TYPE_INT);
signals[CHANGED] =
gtk_signal_new ("changed",
GTK_RUN_LAST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkEntryClass, changed),
gtk_marshal_VOID__VOID,
GTK_TYPE_NONE, 0);
/* Action signals */
signals[ACTIVATE] =
gtk_signal_new ("activate",
GTK_RUN_LAST | GTK_RUN_ACTION,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkEntryClass, activate),
gtk_marshal_VOID__VOID,
GTK_TYPE_NONE, 0);
widget_class->activate_signal = signals[ACTIVATE];
signals[MOVE_CURSOR] =
gtk_signal_new ("move_cursor",
GTK_RUN_LAST | GTK_RUN_ACTION,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkEntryClass, move_cursor),
gtk_marshal_VOID__ENUM_INT_BOOLEAN,
GTK_TYPE_NONE, 3, GTK_TYPE_MOVEMENT_STEP, GTK_TYPE_INT, GTK_TYPE_BOOL);
signals[INSERT_AT_CURSOR] =
gtk_signal_new ("insert_at_cursor",
GTK_RUN_LAST | GTK_RUN_ACTION,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkEntryClass, insert_at_cursor),
gtk_marshal_VOID__STRING,
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 (GtkEntryClass, 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 (GtkEntryClass, 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 (GtkEntryClass, 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 (GtkEntryClass, 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 (GtkEntryClass, toggle_overwrite),
gtk_marshal_VOID__VOID,
GTK_TYPE_NONE, 0);
/*
* Key bindings
*/
binding_set = gtk_binding_set_by_class (class);
/* Moving the insertion point */
add_move_binding (binding_set, GDK_Right, 0,
GTK_MOVEMENT_VISUAL_POSITIONS, 1);
add_move_binding (binding_set, GDK_Left, 0,
GTK_MOVEMENT_VISUAL_POSITIONS, -1);
add_move_binding (binding_set, GDK_f, GDK_CONTROL_MASK,
GTK_MOVEMENT_LOGICAL_POSITIONS, 1);
add_move_binding (binding_set, GDK_b, GDK_CONTROL_MASK,
GTK_MOVEMENT_LOGICAL_POSITIONS, -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);
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);
/* 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);
}
static void
gtk_entry_editable_init (GtkEditableClass *iface)
{
iface->insert_text = gtk_entry_insert_text;
iface->delete_text = gtk_entry_delete_text;
iface->get_chars = gtk_entry_get_chars;
iface->set_selection_bounds = gtk_entry_set_selection_bounds;
iface->get_selection_bounds = gtk_entry_get_selection_bounds;
iface->set_position = gtk_entry_real_set_position;
iface->get_position = gtk_entry_get_position;
}
static void
gtk_entry_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkEntry *entry = GTK_ENTRY (object);
switch (arg_id)
{
case ARG_TEXT_POSITION:
gtk_editable_set_position (GTK_EDITABLE (object), GTK_VALUE_INT (*arg));
break;
case ARG_EDITABLE:
{
gboolean new_value = GTK_VALUE_BOOL (*arg) != 0;
if (new_value != entry->editable)
{
entry->editable = new_value;
gtk_entry_queue_draw (entry);
}
}
break;
case ARG_MAX_LENGTH:
gtk_entry_set_max_length (entry, GTK_VALUE_UINT (*arg));
break;
case ARG_VISIBILITY:
gtk_entry_set_visibility (entry, GTK_VALUE_BOOL (*arg));
break;
case ARG_INVISIBLE_CHAR:
gtk_entry_set_invisible_char (entry, GTK_VALUE_INT (*arg));
break;
default:
break;
}
}
static void
gtk_entry_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkEntry *entry;
entry = GTK_ENTRY (object);
switch (arg_id)
{
case ARG_TEXT_POSITION:
GTK_VALUE_INT (*arg) = entry->current_pos;
break;
case ARG_EDITABLE:
GTK_VALUE_BOOL (*arg) = entry->editable;
break;
case ARG_MAX_LENGTH:
GTK_VALUE_UINT (*arg) = entry->text_max_length;
break;
case ARG_VISIBILITY:
GTK_VALUE_BOOL (*arg) = entry->visible;
break;
case ARG_INVISIBLE_CHAR:
GTK_VALUE_INT (*arg) = entry->invisible_char;
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
static void
gtk_entry_init (GtkEntry *entry)
{
GTK_WIDGET_SET_FLAGS (entry, GTK_CAN_FOCUS);
entry->text_size = MIN_SIZE;
entry->text = g_malloc (entry->text_size);
entry->text[0] = '\0';
entry->editable = TRUE;
entry->visible = TRUE;
entry->invisible_char = '*';
entry->dnd_position = -1;
entry->has_frame = TRUE;
gtk_drag_dest_set (GTK_WIDGET (entry),
GTK_DEST_DEFAULT_DROP | GTK_DEST_DEFAULT_HIGHLIGHT,
target_table, G_N_ELEMENTS (target_table),
GDK_ACTION_COPY | GDK_ACTION_MOVE);
/* This object is completely private. No external entity can gain a reference
* to it; so we create it here and destroy it in finalize().
*/
entry->im_context = gtk_im_multicontext_new ();
gtk_signal_connect (GTK_OBJECT (entry->im_context), "commit",
GTK_SIGNAL_FUNC (gtk_entry_commit_cb), entry);
gtk_signal_connect (GTK_OBJECT (entry->im_context), "preedit_changed",
GTK_SIGNAL_FUNC (gtk_entry_preedit_changed_cb), entry);
}
static void
gtk_entry_finalize (GObject *object)
{
GtkEntry *entry;
g_return_if_fail (GTK_IS_ENTRY (object));
entry = GTK_ENTRY (object);
if (entry->cached_layout)
g_object_unref (G_OBJECT (entry->cached_layout));
gtk_object_unref (GTK_OBJECT (entry->im_context));
if (entry->timer)
g_source_remove (entry->timer);
if (entry->recompute_idle)
g_source_remove (entry->recompute_idle);
entry->text_size = 0;
if (entry->text)
g_free (entry->text);
entry->text = NULL;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gtk_entry_realize (GtkWidget *widget)
{
GtkEntry *entry;
GtkEditable *editable;
GtkRequisition requisition;
GdkWindowAttr attributes;
gint attributes_mask;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_ENTRY (widget));
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
entry = GTK_ENTRY (widget);
editable = GTK_EDITABLE (widget);
gtk_widget_get_child_requisition (widget, &requisition);
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = widget->allocation.x;
attributes.y = widget->allocation.y + (widget->allocation.height -
requisition.height) / 2;
attributes.width = widget->allocation.width;
attributes.height = requisition.height;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = gtk_widget_get_events (widget);
attributes.event_mask |= (GDK_EXPOSURE_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_BUTTON1_MOTION_MASK |
GDK_BUTTON3_MOTION_MASK |
GDK_POINTER_MOTION_HINT_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, entry);
if (entry->has_frame)
{
attributes.x = widget->style->xthickness;
attributes.y = widget->style->ythickness;
}
else
{
attributes.x = 0;
attributes.y = 0;
}
attributes.width = widget->allocation.width - attributes.x * 2;
attributes.height = requisition.height - attributes.y * 2;
attributes.cursor = gdk_cursor_new (GDK_XTERM);
attributes_mask |= GDK_WA_CURSOR;
entry->text_area = gdk_window_new (widget->window, &attributes, attributes_mask);
gdk_window_set_user_data (entry->text_area, entry);
widget->style = gtk_style_attach (widget->style, widget->window);
gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
gdk_window_set_background (entry->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
gdk_window_show (entry->text_area);
gtk_im_context_set_client_window (entry->im_context, entry->text_area);
gtk_entry_adjust_scroll (entry);
}
static void
gtk_entry_unrealize (GtkWidget *widget)
{
GtkEntry *entry;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_ENTRY (widget));
entry = GTK_ENTRY (widget);
gtk_im_context_set_client_window (entry->im_context, entry->text_area);
if (entry->text_area)
{
gdk_window_set_user_data (entry->text_area, NULL);
gdk_window_destroy (entry->text_area);
entry->text_area = NULL;
}
if (entry->popup_menu)
gtk_widget_destroy (entry->popup_menu);
if (GTK_WIDGET_CLASS (parent_class)->unrealize)
(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
}
static void
gtk_entry_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkEntry *entry;
PangoFontMetrics metrics;
PangoFont *font;
gchar *lang;
gint xborder, yborder;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_ENTRY (widget));
g_return_if_fail (requisition != NULL);
entry = GTK_ENTRY (widget);
/* hackish for now, get metrics
*/
font = pango_context_load_font (gtk_widget_get_pango_context (widget),
widget->style->font_desc);
lang = pango_context_get_lang (gtk_widget_get_pango_context (widget));
pango_font_get_metrics (font, lang, &metrics);
g_free (lang);
g_object_unref (G_OBJECT (font));
entry->ascent = metrics.ascent;
entry->descent = metrics.descent;
xborder = INNER_BORDER;
yborder = INNER_BORDER;
if (entry->has_frame)
{
xborder += widget->style->xthickness;
yborder += widget->style->ythickness;
}
else
{
/* add 1 pixel to draw focus rect in widget->window */
xborder += 1;
yborder += 1;
}
requisition->width = MIN_ENTRY_WIDTH + xborder * 2;
requisition->height = ((metrics.ascent + metrics.descent) / PANGO_SCALE +
yborder * 2);
}
static void
gtk_entry_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkEntry *entry;
GtkEditable *editable;
gint xborder, yborder;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_ENTRY (widget));
g_return_if_fail (allocation != NULL);
widget->allocation = *allocation;
entry = GTK_ENTRY (widget);
editable = GTK_EDITABLE (widget);
if (entry->has_frame)
{
xborder = widget->style->xthickness;
yborder = widget->style->ythickness;
}
else
{
/* 1 pixel for focus rect */
xborder = 1;
yborder = 1;
}
if (GTK_WIDGET_REALIZED (widget))
{
/* We call gtk_widget_get_child_requisition, since we want (for
* backwards compatibility reasons) the realization here to
* be affected by the usize of the entry, if set
*/
GtkRequisition requisition;
gtk_widget_get_child_requisition (widget, &requisition);
gdk_window_move_resize (widget->window,
allocation->x,
allocation->y + (allocation->height - requisition.height) / 2,
allocation->width, requisition.height);
gdk_window_move_resize (entry->text_area,
xborder,
yborder,
allocation->width - xborder * 2,
requisition.height - yborder * 2);
gtk_entry_recompute (entry);
}
}
static void
gtk_entry_draw_focus (GtkWidget *widget)
{
gint width, height;
GtkEntry *entry;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_ENTRY (widget));
entry = GTK_ENTRY (widget);
if (GTK_WIDGET_DRAWABLE (widget))
{
if (entry->has_frame)
{
gint x = 0, y = 0;
gdk_window_get_size (widget->window, &width, &height);
if (GTK_WIDGET_HAS_FOCUS (widget))
{
x += 1;
y += 1;
width -= 2;
height -= 2;
}
gtk_paint_shadow (widget->style, widget->window,
GTK_STATE_NORMAL, GTK_SHADOW_IN,
NULL, widget, "entry",
x, y, width, height);
}
else
gdk_window_clear (widget->window);
if (GTK_WIDGET_HAS_FOCUS (widget))
{
gdk_window_get_size (widget->window, &width, &height);
gtk_paint_focus (widget->style, widget->window,
NULL, widget, "entry",
0, 0, width - 1, height - 1);
}
}
}
static gint
gtk_entry_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkEntry *entry;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
entry = GTK_ENTRY (widget);
if (widget->window == event->window)
gtk_widget_draw_focus (widget);
else if (entry->text_area == event->window)
{
gtk_entry_draw_text (GTK_ENTRY (widget));
if ((entry->visible || entry->invisible_char != 0) &&
GTK_WIDGET_HAS_FOCUS (widget) &&
entry->selection_bound == entry->current_pos)
gtk_entry_draw_cursor (GTK_ENTRY (widget), CURSOR_STANDARD);
if (entry->dnd_position != -1)
gtk_entry_draw_cursor (GTK_ENTRY (widget), CURSOR_DND);
}
return FALSE;
}
static gint
gtk_entry_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GtkEntry *entry = GTK_ENTRY (widget);
GtkEditable *editable = GTK_EDITABLE (widget);
gint tmp_pos;
gint sel_start, sel_end;
entry = GTK_ENTRY (widget);
editable = GTK_EDITABLE (widget);
if (event->window != entry->text_area ||
(entry->button && event->button != entry->button))
return FALSE;
entry->button = event->button;
if (!GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
tmp_pos = gtk_entry_find_position (entry, event->x + entry->scroll_offset);
if (event->button == 1)
{
switch (event->type)
{
case GDK_BUTTON_PRESS:
if (gtk_editable_get_selection_bounds (editable, &sel_start, &sel_end) &&
tmp_pos >= sel_start && tmp_pos <= sel_end)
{
/* Click inside the selection - we'll either start a drag, or
* clear the selection
*/
entry->in_drag = TRUE;
entry->drag_start_x = event->x + entry->scroll_offset;
entry->drag_start_y = event->y + entry->scroll_offset;
}
else
{
gtk_entry_reset_im_context (entry);
entry->current_pos = tmp_pos;
entry->selection_bound = tmp_pos;
gtk_entry_recompute (entry);
}
break;
case GDK_2BUTTON_PRESS:
gtk_entry_select_word (entry);
break;
case GDK_3BUTTON_PRESS:
gtk_entry_select_line (entry);
break;
default:
break;
}
return TRUE;
}
else if (event->button == 2 && event->type == GDK_BUTTON_PRESS && entry->editable)
{
gtk_editable_select_region (editable, tmp_pos, tmp_pos);
gtk_entry_paste (entry, GDK_SELECTION_PRIMARY);
return TRUE;
}
else if (event->button == 3 && event->type == GDK_BUTTON_PRESS)
{
gtk_entry_popup_menu (entry, event);
entry->button = 0; /* Don't wait for release, since the menu will gtk_grab_add */
return TRUE;
}
return FALSE;
}
static gint
gtk_entry_button_release (GtkWidget *widget,
GdkEventButton *event)
{
GtkEntry *entry = GTK_ENTRY (widget);
if (event->window != entry->text_area || entry->button != event->button)
return FALSE;
if (entry->in_drag)
{
gint tmp_pos = gtk_entry_find_position (entry, entry->drag_start_x);
gtk_entry_reset_im_context (entry);
entry->current_pos = tmp_pos;
entry->selection_bound = tmp_pos;
gtk_entry_recompute (entry);
entry->in_drag = 0;
}
entry->button = 0;
gtk_entry_update_primary_selection (entry);
return FALSE;
}
static gint
gtk_entry_motion_notify (GtkWidget *widget,
GdkEventMotion *event)
{
GtkEntry *entry = GTK_ENTRY (widget);
gint tmp_pos;
if (event->window != entry->text_area || entry->button != 1)
return FALSE;
if (event->is_hint || (entry->text_area != event->window))
gdk_window_get_pointer (entry->text_area, NULL, NULL, NULL);
if (entry->in_drag)
{
if (gtk_drag_check_threshold (widget,
entry->drag_start_x, entry->drag_start_y,
event->x + entry->scroll_offset, event->y))
{
GdkDragContext *context;
GtkTargetList *target_list = gtk_target_list_new (target_table, G_N_ELEMENTS (target_table));
context = gtk_drag_begin (widget, target_list, GDK_ACTION_COPY | GDK_ACTION_MOVE,
entry->button, (GdkEvent *)event);
entry->in_drag = FALSE;
entry->button = 0;
gtk_target_list_unref (target_list);
gtk_drag_set_icon_default (context);
}
}
else
{
tmp_pos = gtk_entry_find_position (entry, event->x + entry->scroll_offset);
if (tmp_pos != entry->current_pos)
{
entry->current_pos = tmp_pos;
gtk_entry_recompute (entry);
}
}
return TRUE;
}
static gint
gtk_entry_key_press (GtkWidget *widget,
GdkEventKey *event)
{
GtkEntry *entry = GTK_ENTRY (widget);
if (!entry->editable)
return FALSE;
if (gtk_im_context_filter_keypress (entry->im_context, event))
{
entry->need_im_reset = TRUE;
return TRUE;
}
else if (GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event))
/* Activate key bindings
*/
return TRUE;
else if (event->keyval == GDK_Return)
{
gtk_widget_activate (widget);
return TRUE;
}
return FALSE;
}
static gint
gtk_entry_focus_in (GtkWidget *widget,
GdkEventFocus *event)
{
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
gtk_widget_draw_focus (widget);
gtk_entry_queue_draw (GTK_ENTRY (widget));
GTK_ENTRY (widget)->need_im_reset = TRUE;
gtk_im_context_focus_in (GTK_ENTRY (widget)->im_context);
return FALSE;
}
static gint
gtk_entry_focus_out (GtkWidget *widget,
GdkEventFocus *event)
{
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_ENTRY (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
gtk_widget_draw_focus (widget);
gtk_entry_queue_draw (GTK_ENTRY (widget));
GTK_ENTRY (widget)->need_im_reset = TRUE;
gtk_im_context_focus_out (GTK_ENTRY (widget)->im_context);
return FALSE;
}
static void
gtk_entry_direction_changed (GtkWidget *widget,
GtkTextDirection previous_dir)
{
GtkEntry *entry = GTK_ENTRY (widget);
gtk_entry_recompute (entry);
GTK_WIDGET_CLASS (parent_class)->direction_changed (widget, previous_dir);
}
static void
gtk_entry_state_changed (GtkWidget *widget,
GtkStateType previous_state)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_ENTRY (widget));
if (GTK_WIDGET_REALIZED (widget))
{
gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
gdk_window_set_background (GTK_ENTRY (widget)->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
}
gtk_widget_queue_clear (widget);
}
/* GtkEditable method implementations
*/
static void
gtk_entry_insert_text (GtkEditable *editable,
const gchar *new_text,
gint new_text_length,
gint *position)
{
GtkEntry *entry = GTK_ENTRY (editable);
gchar buf[64];
gchar *text;
if (*position < 0 || *position > entry->text_length)
*position = entry->text_length;
g_object_ref (G_OBJECT (editable));
if (new_text_length <= 63)
text = buf;
else
text = g_new (gchar, new_text_length + 1);
text[new_text_length] = '\0';
strncpy (text, new_text, new_text_length);
gtk_signal_emit (GTK_OBJECT (editable), signals[INSERT_TEXT], text, new_text_length, position);
gtk_signal_emit (GTK_OBJECT (editable), signals[CHANGED]);
if (new_text_length > 63)
g_free (text);
g_object_unref (G_OBJECT (editable));
}
static void
gtk_entry_delete_text (GtkEditable *editable,
gint start_pos,
gint end_pos)
{
GtkEntry *entry = GTK_ENTRY (editable);
if (end_pos < 0 || end_pos > entry->text_length)
end_pos = entry->text_length;
if (start_pos < 0)
start_pos = 0;
if (start_pos > end_pos)
start_pos = end_pos;
g_object_ref (G_OBJECT (editable));
gtk_signal_emit (GTK_OBJECT (editable), signals[DELETE_TEXT], start_pos, end_pos);
gtk_signal_emit (GTK_OBJECT (editable), signals[CHANGED]);
g_object_unref (G_OBJECT (editable));
}
static gchar *
gtk_entry_get_chars (GtkEditable *editable,
gint start_pos,
gint end_pos)
{
GtkEntry *entry;
gint start_index, end_index;
g_return_val_if_fail (editable != NULL, NULL);
g_return_val_if_fail (GTK_IS_ENTRY (editable), NULL);
entry = GTK_ENTRY (editable);
if (end_pos < 0)
end_pos = entry->text_length;
start_pos = MIN (entry->text_length, start_pos);
end_pos = MIN (entry->text_length, end_pos);
start_index = g_utf8_offset_to_pointer (entry->text, start_pos) - entry->text;
end_index = g_utf8_offset_to_pointer (entry->text, end_pos) - entry->text;
return g_strndup (entry->text + start_index, end_index - start_index);
}
static void
gtk_entry_real_set_position (GtkEditable *editable,
gint position)
{
GtkEntry *entry = GTK_ENTRY (editable);
if (position < 0 || position > entry->text_length)
position = entry->text_length;
if (position != entry->current_pos)
{
gtk_entry_reset_im_context (entry);
entry->current_pos = entry->selection_bound = position;
gtk_entry_recompute (entry);
}
}
static gint
gtk_entry_get_position (GtkEditable *editable)
{
return GTK_ENTRY (editable)->current_pos;
}
static void
gtk_entry_set_selection_bounds (GtkEditable *editable,
gint start,
gint end)
{
GtkEntry *entry = GTK_ENTRY (editable);
if (start < 0)
start = entry->text_length;
if (end < 0)
end = entry->text_length;
gtk_entry_reset_im_context (entry);
entry->selection_bound = MIN (start, entry->text_length);
entry->current_pos = MIN (end, entry->text_length);
gtk_entry_update_primary_selection (entry);
gtk_entry_recompute (entry);
}
static gboolean
gtk_entry_get_selection_bounds (GtkEditable *editable,
gint *start,
gint *end)
{
GtkEntry *entry = GTK_ENTRY (editable);
*start = entry->selection_bound;
*end = entry->current_pos;
return (entry->selection_bound != entry->current_pos);
}
static void
gtk_entry_style_set (GtkWidget *widget,
GtkStyle *previous_style)
{
GtkEntry *entry = GTK_ENTRY (widget);
if (previous_style && GTK_WIDGET_REALIZED (widget))
{
gtk_entry_recompute (entry);
gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
gdk_window_set_background (entry->text_area, &widget->style->base[GTK_WIDGET_STATE (widget)]);
}
}
static char *
strstr_len (const char *haystack,
int haystack_len,
const char *needle)
{
int i;
g_return_val_if_fail (haystack != NULL, NULL);
g_return_val_if_fail (needle != NULL, NULL);
if (haystack_len < 0)
return strstr (haystack, needle);
else
{
const char *p = haystack;
int needle_len = strlen (needle);
const char *end = haystack + haystack_len - needle_len;
if (needle_len == 0)
return (char *)haystack;
while (*p && p <= end)
{
for (i = 0; i < needle_len; i++)
if (p[i] != needle[i])
goto next;
return (char *)p;
next:
p += needle_len;
}
}
return NULL;
}
/* Default signal handlers
*/
static void
gtk_entry_real_insert_text (GtkEntry *entry,
const gchar *new_text,
gint new_text_length,
gint *position)
{
gint index;
gint n_chars;
gchar line_separator[7];
gint len;
gchar *p;
if (new_text_length < 0)
new_text_length = strlen (new_text);
/* We don't want to allow inserting paragraph delimeters
*/
pango_find_paragraph_boundary (new_text, new_text_length, &new_text_length, NULL);
/* Or line separators - this is really painful
*/
len = g_unichar_to_utf8 (0x2028, line_separator); /* 0x2028 == LS */
line_separator[len] = '\0';
p = strstr_len (new_text, new_text_length, line_separator);
if (p)
new_text_length = p - new_text;
n_chars = g_utf8_strlen (new_text, new_text_length);
if (entry->text_max_length > 0 && n_chars + entry->text_length > entry->text_max_length)
{
gdk_beep ();
n_chars = entry->text_max_length - entry->text_length;
}
if (new_text_length + entry->n_bytes + 1 > entry->text_size)
{
while (new_text_length + entry->n_bytes + 1 > entry->text_size)
{
if (entry->text_size == 0)
entry->text_size = MIN_SIZE;
else
{
if (2 * (guint)entry->text_size < MAX_SIZE &&
2 * (guint)entry->text_size > entry->text_size)
entry->text_size *= 2;
else
{
entry->text_size = MAX_SIZE;
new_text_length = entry->text_size - new_text_length - 1;
break;
}
}
}
entry->text = g_realloc (entry->text, entry->text_size);
}
index = g_utf8_offset_to_pointer (entry->text, *position) - entry->text;
g_memmove (entry->text + index + new_text_length, entry->text + index, entry->n_bytes - index);
memcpy (entry->text + index, new_text, new_text_length);
entry->n_bytes += new_text_length;
entry->text_length += n_chars;
/* NUL terminate for safety and convenience */
entry->text[entry->n_bytes] = '\0';
if (entry->current_pos > *position)
entry->current_pos += n_chars;
if (entry->selection_bound > *position)
entry->selection_bound += n_chars;
*position += n_chars;
gtk_entry_recompute (entry);
}
static void
gtk_entry_real_delete_text (GtkEntry *entry,
gint start_pos,
gint end_pos)
{
if (start_pos < 0)
start_pos = 0;
if (end_pos < 0 || end_pos > entry->text_length)
end_pos = entry->text_length;
if (start_pos < end_pos)
{
gint start_index = g_utf8_offset_to_pointer (entry->text, start_pos) - entry->text;
gint end_index = g_utf8_offset_to_pointer (entry->text, end_pos) - entry->text;
g_memmove (entry->text + start_index, entry->text + end_index, entry->n_bytes - end_index);
entry->text_length -= (end_pos - start_pos);
entry->n_bytes -= (end_index - start_index);
if (entry->current_pos > start_pos)
entry->current_pos -= MIN (entry->current_pos, end_pos) - start_pos;
if (entry->selection_bound > start_pos)
entry->selection_bound -= MIN (entry->selection_bound, end_pos) - start_pos;
}
/* We might have deleted the selection
*/
gtk_entry_update_primary_selection (entry);
gtk_entry_recompute (entry);
}
static void
gtk_entry_move_cursor (GtkEntry *entry,
GtkMovementStep step,
gint count,
gboolean extend_selection)
{
gint new_pos = entry->current_pos;
gtk_entry_reset_im_context (entry);
switch (step)
{
case GTK_MOVEMENT_LOGICAL_POSITIONS:
new_pos = CLAMP (new_pos + count, 0, entry->text_length);
break;
case GTK_MOVEMENT_VISUAL_POSITIONS:
new_pos = gtk_entry_move_visually (entry, new_pos, count);
break;
case GTK_MOVEMENT_WORDS:
while (count > 0)
{
new_pos = gtk_entry_move_forward_word (entry, new_pos);
count--;
}
while (count < 0)
{
new_pos = gtk_entry_move_backward_word (entry, new_pos);
count++;
}
break;
case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
case GTK_MOVEMENT_PARAGRAPH_ENDS:
case GTK_MOVEMENT_BUFFER_ENDS:
new_pos = count < 0 ? 0 : entry->text_length;
break;
case GTK_MOVEMENT_DISPLAY_LINES:
case GTK_MOVEMENT_PARAGRAPHS:
case GTK_MOVEMENT_PAGES:
break;
}
if (extend_selection)
gtk_editable_select_region (GTK_EDITABLE (entry), entry->selection_bound, new_pos);
else
gtk_editable_set_position (GTK_EDITABLE (entry), new_pos);
}
static void
gtk_entry_insert_at_cursor (GtkEntry *entry,
const gchar *str)
{
GtkEditable *editable = GTK_EDITABLE (entry);
gint pos = entry->current_pos;
gtk_entry_reset_im_context (entry);
gtk_editable_insert_text (editable, str, -1, &pos);
gtk_editable_set_position (editable, pos);
}
static void
gtk_entry_delete_from_cursor (GtkEntry *entry,
GtkDeleteType type,
gint count)
{
GtkEditable *editable = GTK_EDITABLE (entry);
gint start_pos = entry->current_pos;
gint end_pos = entry->current_pos;
gtk_entry_reset_im_context (entry);
if (!entry->editable)
return;
if (entry->selection_bound != entry->current_pos)
{
gtk_editable_delete_selection (editable);
return;
}
switch (type)
{
case GTK_DELETE_CHARS:
end_pos = entry->current_pos + count;
gtk_editable_delete_text (editable, MIN (start_pos, end_pos), MAX (start_pos, end_pos));
break;
case GTK_DELETE_WORDS:
if (count < 0)
{
/* Move to end of current word, or if not on a word, end of previous word */
end_pos = gtk_entry_move_backward_word (entry, end_pos);
end_pos = gtk_entry_move_forward_word (entry, end_pos);
}
else if (count > 0)
{
/* Move to beginning of current word, or if not on a word, begining of next word */
start_pos = gtk_entry_move_forward_word (entry, start_pos);
start_pos = gtk_entry_move_backward_word (entry, start_pos);
}
/* Fall through */
case GTK_DELETE_WORD_ENDS:
while (count < 0)
{
start_pos = gtk_entry_move_backward_word (entry, start_pos);
count++;
}
while (count > 0)
{
end_pos = gtk_entry_move_forward_word (entry, end_pos);
count--;
}
gtk_editable_delete_text (editable, start_pos, end_pos);
break;
case GTK_DELETE_DISPLAY_LINE_ENDS:
case GTK_DELETE_PARAGRAPH_ENDS:
if (count < 0)
gtk_editable_delete_text (editable, 0, entry->current_pos);
else
gtk_editable_delete_text (editable, entry->current_pos, -1);
break;
case GTK_DELETE_DISPLAY_LINES:
case GTK_DELETE_PARAGRAPHS:
gtk_editable_delete_text (editable, 0, -1);
break;
case GTK_DELETE_WHITESPACE:
gtk_entry_delete_whitespace (entry);
break;
}
}
static void
gtk_entry_copy_clipboard (GtkEntry *entry)
{
GtkEditable *editable = GTK_EDITABLE (entry);
gint start, end;
if (gtk_editable_get_selection_bounds (editable, &start, &end))
{
gchar *str = gtk_entry_get_public_chars (entry, start, end);
gtk_clipboard_set_text (gtk_clipboard_get (GDK_NONE), str, -1);
g_free (str);
}
}
static void
gtk_entry_cut_clipboard (GtkEntry *entry)
{
GtkEditable *editable = GTK_EDITABLE (entry);
gint start, end;
gtk_entry_copy_clipboard (entry);
if (gtk_editable_get_selection_bounds (editable, &start, &end))
gtk_editable_delete_text (editable, start, end);
}
static void
gtk_entry_paste_clipboard (GtkEntry *entry)
{
gtk_entry_paste (entry, GDK_NONE);
}
static void
gtk_entry_toggle_overwrite (GtkEntry *entry)
{
entry->overwrite_mode = !entry->overwrite_mode;
}
/* IM Context Callbacks
*/
static void
gtk_entry_commit_cb (GtkIMContext *context,
const gchar *str,
GtkEntry *entry)
{
GtkEditable *editable = GTK_EDITABLE (entry);
gint tmp_pos = entry->current_pos;
gtk_editable_insert_text (editable, str, strlen (str), &tmp_pos);
gtk_editable_set_position (editable, tmp_pos);
}
static void
gtk_entry_preedit_changed_cb (GtkIMContext *context,
GtkEntry *entry)
{
gchar *preedit_string;
gint cursor_pos;
gtk_im_context_get_preedit_string (entry->im_context,
&preedit_string, NULL,
&cursor_pos);
entry->preedit_length = strlen (preedit_string);
cursor_pos = CLAMP (cursor_pos, 0, g_utf8_strlen (preedit_string, -1));
entry->preedit_cursor = cursor_pos;
g_free (preedit_string);
gtk_entry_recompute (entry);
}
/* Internal functions
*/
static void
gtk_entry_reset_layout (GtkEntry *entry)
{
if (entry->cached_layout)
{
g_object_unref (G_OBJECT (entry->cached_layout));
entry->cached_layout = NULL;
}
}
static gboolean
recompute_idle_func (gpointer data)
{
GtkEntry *entry = GTK_ENTRY (data);
gtk_entry_adjust_scroll (entry);
gtk_entry_queue_draw (entry);
entry->recompute_idle = FALSE;
return FALSE;
}
static void
gtk_entry_recompute (GtkEntry *entry)
{
gtk_entry_reset_layout (entry);
if (!entry->recompute_idle)
{
entry->recompute_idle = g_idle_add_full (G_PRIORITY_HIGH_IDLE + 15, /* between resize and redraw */
recompute_idle_func, entry, NULL);
}
}
static void
append_char (GString *str,
gunichar ch,
gint count)
{
gint i;
gint char_len;
gchar buf[7];
char_len = g_unichar_to_utf8 (ch, buf);
i = 0;
while (i < count)
{
g_string_append_len (str, buf, char_len);
++i;
}
}
static PangoLayout *
gtk_entry_create_layout (GtkEntry *entry,
gboolean include_preedit)
{
PangoLayout *layout = gtk_widget_create_pango_layout (GTK_WIDGET (entry), NULL);
PangoAttrList *tmp_attrs = pango_attr_list_new ();
gchar *preedit_string = NULL;
gint preedit_length = 0;
PangoAttrList *preedit_attrs = NULL;
if (include_preedit)
{
gtk_im_context_get_preedit_string (entry->im_context,
&preedit_string, &preedit_attrs, NULL);
preedit_length = entry->preedit_length;
}
if (preedit_length)
{
GString *tmp_string = g_string_new (NULL);
gint cursor_index = g_utf8_offset_to_pointer (entry->text, entry->current_pos) - entry->text;
if (entry->visible)
{
g_string_prepend_len (tmp_string, entry->text, entry->n_bytes);
g_string_insert (tmp_string, cursor_index, preedit_string);
}
else
{
gint ch_len;
gint preedit_len_chars;
gunichar invisible_char;
ch_len = g_utf8_strlen (entry->text, entry->n_bytes);
preedit_len_chars = g_utf8_strlen (preedit_string, -1);
ch_len += preedit_len_chars;
if (entry->invisible_char != 0)
invisible_char = entry->invisible_char;
else
invisible_char = ' '; /* just pick a char */
append_char (tmp_string, invisible_char, ch_len);
/* Fix cursor index to point to invisible char corresponding
* to the preedit, fix preedit_length to be the length of
* the invisible chars representing the preedit
*/
cursor_index =
g_utf8_offset_to_pointer (tmp_string->str, entry->current_pos) -
tmp_string->str;
preedit_length =
preedit_len_chars *
g_unichar_to_utf8 (invisible_char, NULL);
}
pango_layout_set_text (layout, tmp_string->str, tmp_string->len);
pango_attr_list_splice (tmp_attrs, preedit_attrs,
cursor_index, preedit_length);
g_string_free (tmp_string, TRUE);
}
else
{
if (entry->visible)
{
pango_layout_set_text (layout, entry->text, entry->n_bytes);
}
else
{
GString *str = g_string_new (NULL);
gunichar invisible_char;
if (entry->invisible_char != 0)
invisible_char = entry->invisible_char;
else
invisible_char = ' '; /* just pick a char */
append_char (str, invisible_char, entry->text_length);
pango_layout_set_text (layout, str->str, str->len);
g_string_free (str, TRUE);
}
}
pango_layout_set_attributes (layout, tmp_attrs);
if (preedit_string)
g_free (preedit_string);
if (preedit_attrs)
pango_attr_list_unref (preedit_attrs);
pango_attr_list_unref (tmp_attrs);
return layout;
}
static PangoLayout *
gtk_entry_get_layout (GtkEntry *entry,
gboolean include_preedit)
{
if (entry->preedit_length > 0 &&
!include_preedit != !entry->cache_includes_preedit)
gtk_entry_reset_layout (entry);
if (!entry->cached_layout)
{
entry->cached_layout = gtk_entry_create_layout (entry, include_preedit);
entry->cache_includes_preedit = include_preedit;
}
g_object_ref (G_OBJECT (entry->cached_layout));
return entry->cached_layout;
}
static void
gtk_entry_draw_text (GtkEntry *entry)
{
GtkWidget *widget;
PangoLayoutLine *line;
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
if (!entry->visible && entry->invisible_char == 0)
return;
if (GTK_WIDGET_DRAWABLE (entry))
{
PangoLayout *layout = gtk_entry_get_layout (entry, TRUE);
PangoRectangle logical_rect;
gint area_width, area_height;
gint start_pos, end_pos;
gint y_pos;
gdk_window_get_size (entry->text_area, &area_width, &area_height);
area_height = PANGO_SCALE * (area_height - 2 * INNER_BORDER);
widget = GTK_WIDGET (entry);
gtk_paint_flat_box (widget->style, entry->text_area,
GTK_WIDGET_STATE(widget), GTK_SHADOW_NONE,
NULL, widget, "entry_bg",
0, 0, area_width, area_height);
line = pango_layout_get_lines (layout)->data;
pango_layout_line_get_extents (line, NULL, &logical_rect);
/* Align primarily for locale's ascent/descent */
y_pos = ((area_height - entry->ascent - entry->descent) / 2 +
entry->ascent + logical_rect.y);
/* Now see if we need to adjust to fit in actual drawn string */
if (logical_rect.height > area_height)
y_pos = (area_height - logical_rect.height) / 2;
else if (y_pos < 0)
y_pos = 0;
else if (y_pos + logical_rect.height > area_height)
y_pos = area_height - logical_rect.height;
y_pos = INNER_BORDER + y_pos / PANGO_SCALE;
gdk_draw_layout (entry->text_area, widget->style->text_gc [widget->state],
INNER_BORDER - entry->scroll_offset, y_pos,
layout);
if (gtk_editable_get_selection_bounds (GTK_EDITABLE (entry), &start_pos, &end_pos))
{
gint *ranges;
gint n_ranges, i;
gint start_index = g_utf8_offset_to_pointer (entry->text, start_pos) - entry->text;
gint end_index = g_utf8_offset_to_pointer (entry->text, end_pos) - entry->text;
GdkRegion *clip_region = gdk_region_new ();
pango_layout_line_get_x_ranges (line, start_index, end_index, &ranges, &n_ranges);
for (i=0; i < n_ranges; i++)
{
GdkRectangle rect;
rect.x = INNER_BORDER - entry->scroll_offset + ranges[2*i] / PANGO_SCALE;
rect.y = y_pos;
rect.width = (ranges[2*i + 1] - ranges[2*i]) / PANGO_SCALE;
rect.height = logical_rect.height / PANGO_SCALE;
gdk_draw_rectangle (entry->text_area, widget->style->bg_gc [GTK_STATE_SELECTED], TRUE,
rect.x, rect.y, rect.width, rect.height);
gdk_region_union_with_rect (clip_region, &rect);
}
gdk_gc_set_clip_region (widget->style->fg_gc [GTK_STATE_SELECTED], clip_region);
gdk_draw_layout (entry->text_area, widget->style->fg_gc [GTK_STATE_SELECTED],
INNER_BORDER - entry->scroll_offset, y_pos,
layout);
gdk_gc_set_clip_region (widget->style->fg_gc [GTK_STATE_SELECTED], NULL);
gdk_region_destroy (clip_region);
g_free (ranges);
}
g_object_unref (G_OBJECT (layout));
}
}
static void
gtk_entry_draw_cursor (GtkEntry *entry,
CursorType type)
{
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
if (GTK_WIDGET_DRAWABLE (entry))
{
GtkWidget *widget = GTK_WIDGET (entry);
gint xoffset = INNER_BORDER - entry->scroll_offset;
gint strong_x, weak_x;
gint text_area_height;
gdk_window_get_size (entry->text_area, NULL, &text_area_height);
gtk_entry_get_cursor_locations (entry, type, &strong_x, &weak_x);
gdk_draw_line (entry->text_area, widget->style->bg_gc[GTK_STATE_SELECTED],
xoffset + strong_x, INNER_BORDER,
xoffset + strong_x, text_area_height - INNER_BORDER);
if (weak_x != strong_x)
gdk_draw_line (entry->text_area, widget->style->fg_gc[GTK_STATE_NORMAL],
xoffset + weak_x, INNER_BORDER,
xoffset + weak_x, text_area_height - INNER_BORDER);
}
}
static void
gtk_entry_queue_draw (GtkEntry *entry)
{
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
if (GTK_WIDGET_REALIZED (entry))
{
GdkRectangle rect = { 0 };
gdk_window_get_size (entry->text_area, &rect.width, &rect.height);
gdk_window_invalidate_rect (entry->text_area, &rect, FALSE);
}
}
static void
gtk_entry_reset_im_context (GtkEntry *entry)
{
if (entry->need_im_reset)
{
entry->need_im_reset = 0;
gtk_im_context_reset (entry->im_context);
}
}
static gint
gtk_entry_find_position (GtkEntry *entry,
gint x)
{
PangoLayout *layout;
PangoLayoutLine *line;
gint index;
gint pos;
gboolean trailing;
gint cursor_index = g_utf8_offset_to_pointer (entry->text, entry->current_pos) - entry->text;
layout = gtk_entry_get_layout (entry, TRUE);
line = pango_layout_get_lines (layout)->data;
pango_layout_line_x_to_index (line, x * PANGO_SCALE, &index, &trailing);
g_object_unref (G_OBJECT (layout));
if (index >= cursor_index && entry->preedit_length)
{
if (index >= cursor_index + entry->preedit_length)
index -= entry->preedit_length;
else
{
index = cursor_index;
trailing = 0;
}
}
pos = g_utf8_pointer_to_offset (entry->text, entry->text + index);
if (trailing)
pos += 1;
return pos;
}
static void
gtk_entry_get_cursor_locations (GtkEntry *entry,
CursorType type,
gint *strong_x,
gint *weak_x)
{
PangoLayout *layout = gtk_entry_get_layout (entry, TRUE);
const gchar *text;
PangoRectangle strong_pos, weak_pos;
gint index;
if (type == CURSOR_STANDARD)
{
text = pango_layout_get_text (layout);
index = g_utf8_offset_to_pointer (text, entry->current_pos + entry->preedit_cursor) - text;
}
else /* type == CURSOR_DND */
{
index = g_utf8_offset_to_pointer (entry->text, entry->dnd_position) - entry->text;
if (entry->dnd_position > entry->current_pos)
index += entry->preedit_length;
}
pango_layout_get_cursor_pos (layout, index, &strong_pos, &weak_pos);
g_object_unref (G_OBJECT (layout));
if (strong_x)
*strong_x = strong_pos.x / PANGO_SCALE;
if (weak_x)
*weak_x = weak_pos.x / PANGO_SCALE;
}
static void
gtk_entry_adjust_scroll (GtkEntry *entry)
{
GtkWidget *widget;
gint min_offset, max_offset;
gint text_area_width;
gint strong_x, weak_x;
gint strong_xoffset, weak_xoffset;
PangoLayout *layout;
PangoLayoutLine *line;
PangoRectangle logical_rect;
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
widget = GTK_WIDGET (entry);
if (!GTK_WIDGET_REALIZED (entry))
return;
gdk_window_get_size (entry->text_area, &text_area_width, NULL);
text_area_width -= 2 * INNER_BORDER;
layout = gtk_entry_get_layout (entry, TRUE);
line = pango_layout_get_lines (layout)->data;
pango_layout_line_get_extents (line, NULL, &logical_rect);
g_object_unref (G_OBJECT (layout));
/* Display as much text as we can */
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
{
min_offset = 0;
max_offset = MAX (min_offset, logical_rect.width / PANGO_SCALE - text_area_width);
}
else
{
max_offset = logical_rect.width / PANGO_SCALE - text_area_width;
min_offset = MIN (0, max_offset);
}
entry->scroll_offset = CLAMP (entry->scroll_offset, min_offset, max_offset);
/* And make sure cursors are on screen. Note that the cursor is
* actually drawn one pixel into the INNER_BORDER space on
* the right, when the scroll is at the utmost right. This
* looks better to to me than confining the cursor inside the
* border entirely, though it means that the cursor gets one
* pixel closer to the the edge of the widget on the right than
* on the left. This might need changing if one changed
* INNER_BORDER from 2 to 1, as one would do on a
* small-screen-real-estate display.
*
* We always make sure that the strong cursor is on screen, and
* put the weak cursor on screen if possible.
*/
gtk_entry_get_cursor_locations (entry, CURSOR_STANDARD, &strong_x, &weak_x);
strong_xoffset = strong_x - entry->scroll_offset;
if (strong_xoffset < 0)
{
entry->scroll_offset += strong_xoffset;
strong_xoffset = 0;
}
else if (strong_xoffset > text_area_width)
{
entry->scroll_offset += strong_xoffset - text_area_width;
strong_xoffset = text_area_width;
}
weak_xoffset = weak_x - entry->scroll_offset;
if (weak_xoffset < 0 && strong_xoffset - weak_xoffset <= text_area_width)
{
entry->scroll_offset += weak_xoffset;
}
else if (weak_xoffset > text_area_width &&
strong_xoffset - (weak_xoffset - text_area_width) >= 0)
{
entry->scroll_offset += weak_xoffset - text_area_width;
}
}
static gint
gtk_entry_move_visually (GtkEntry *entry,
gint start,
gint count)
{
gint index;
PangoLayout *layout = gtk_entry_get_layout (entry, FALSE);
const gchar *text;
text = pango_layout_get_text (layout);
index = g_utf8_offset_to_pointer (text, start) - text;
while (count != 0)
{
int new_index, new_trailing;
if (count > 0)
{
pango_layout_move_cursor_visually (layout, index, 0, 1, &new_index, &new_trailing);
count--;
}
else
{
pango_layout_move_cursor_visually (layout, index, 0, -1, &new_index, &new_trailing);
count++;
}
if (new_index < 0 || new_index == G_MAXINT)
break;
if (new_trailing)
index = g_utf8_next_char (entry->text + new_index) - entry->text;
else
index = new_index;
}
g_object_unref (G_OBJECT (layout));
return g_utf8_pointer_to_offset (text, text + index);
}
static gint
gtk_entry_move_forward_word (GtkEntry *entry,
gint start)
{
gint new_pos = start;
/* Prevent any leak of information */
if (!entry->visible)
{
new_pos = entry->text_length;
}
else if (entry->text && (new_pos < entry->text_length))
{
PangoLayout *layout = gtk_entry_get_layout (entry, FALSE);
PangoLogAttr *log_attrs;
gint n_attrs;
pango_layout_get_log_attrs (layout, &log_attrs, &n_attrs);
/* Find the next word end */
new_pos++;
while (new_pos < n_attrs && !log_attrs[new_pos].is_word_end)
new_pos++;
g_free (log_attrs);
g_object_unref (G_OBJECT (layout));
}
return new_pos;
}
static gint
gtk_entry_move_backward_word (GtkEntry *entry,
gint start)
{
gint new_pos = start;
/* Prevent any leak of information */
if (!entry->visible)
{
new_pos = 0;
}
else if (entry->text && start > 0)
{
PangoLayout *layout = gtk_entry_get_layout (entry, FALSE);
PangoLogAttr *log_attrs;
gint n_attrs;
pango_layout_get_log_attrs (layout, &log_attrs, &n_attrs);
new_pos = start - 1;
/* Find the previous word beginning */
while (new_pos > 0 && !log_attrs[new_pos].is_word_start)
new_pos--;
g_free (log_attrs);
g_object_unref (G_OBJECT (layout));
}
return new_pos;
}
static void
gtk_entry_delete_whitespace (GtkEntry *entry)
{
PangoLayout *layout = gtk_entry_get_layout (entry, FALSE);
PangoLogAttr *log_attrs;
gint n_attrs;
gint start, end;
pango_layout_get_log_attrs (layout, &log_attrs, &n_attrs);
start = end = entry->current_pos;
while (start > 0 && log_attrs[start-1].is_white)
start--;
while (end < n_attrs && log_attrs[start-1].is_white)
end++;
g_free (log_attrs);
g_object_unref (G_OBJECT (layout));
if (start != end)
gtk_editable_delete_text (GTK_EDITABLE (entry), start, end);
}
static void
gtk_entry_select_word (GtkEntry *entry)
{
gint start_pos = gtk_entry_move_backward_word (entry, entry->current_pos);
gint end_pos = gtk_entry_move_forward_word (entry, entry->current_pos);
gtk_editable_select_region (GTK_EDITABLE (entry), start_pos, end_pos);
}
static void
gtk_entry_select_line (GtkEntry *entry)
{
gtk_editable_select_region (GTK_EDITABLE (entry), 0, -1);
}
/*
* Like gtk_editable_get_chars, but if the editable is not
* visible, return asterisks; also convert result to UTF-8.
*/
static char *
gtk_entry_get_public_chars (GtkEntry *entry,
gint start,
gint end)
{
if (end < 0)
end = entry->text_length;
if (entry->visible)
return gtk_editable_get_chars (GTK_EDITABLE (entry), start, end);
else
{
gchar *str;
gint i;
gint n_chars = end - start;
str = g_malloc (n_chars + 1);
for (i = 0; i < n_chars; i++)
str[i] = '*';
str[i] = '\0';
return str;
}
}
static void
paste_received (GtkClipboard *clipboard,
const gchar *text,
gpointer data)
{
GtkEntry *entry = GTK_ENTRY (data);
GtkEditable *editable = GTK_EDITABLE (entry);
if (text)
{
gint pos = entry->current_pos;
gtk_editable_insert_text (editable, text, -1, &pos);
gtk_editable_set_position (editable, pos);
}
g_object_unref (G_OBJECT (entry));
}
static void
gtk_entry_paste (GtkEntry *entry,
GdkAtom selection)
{
g_object_ref (G_OBJECT (entry));
gtk_clipboard_request_text (gtk_clipboard_get (selection),
paste_received, entry);
}
static void
primary_get_cb (GtkClipboard *clipboard,
GtkSelectionData *selection_data,
guint info,
gpointer data)
{
GtkEntry *entry = GTK_ENTRY (data);
gint start, end;
if (gtk_editable_get_selection_bounds (GTK_EDITABLE (entry), &start, &end))
{
gchar *str = gtk_entry_get_public_chars (entry, start, end);
gtk_selection_data_set_text (selection_data, str);
g_free (str);
}
}
static void
primary_clear_cb (GtkClipboard *clipboard,
gpointer data)
{
GtkEntry *entry = GTK_ENTRY (data);
gtk_editable_select_region (GTK_EDITABLE (entry), entry->current_pos, entry->current_pos);
}
static void
gtk_entry_update_primary_selection (GtkEntry *entry)
{
static const GtkTargetEntry targets[] = {
{ "UTF8_STRING", 0, 0 },
{ "STRING", 0, 0 },
{ "TEXT", 0, 0 },
{ "COMPOUND_TEXT", 0, 0 }
};
GtkClipboard *clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
gint start, end;
if (gtk_editable_get_selection_bounds (GTK_EDITABLE (entry), &start, &end))
{
if (!gtk_clipboard_set_with_owner (clipboard, targets, G_N_ELEMENTS (targets),
primary_get_cb, primary_clear_cb, G_OBJECT (entry)))
primary_clear_cb (clipboard, entry);
}
else
{
if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (entry))
gtk_clipboard_clear (clipboard);
}
}
/* Public API
*/
GtkWidget*
gtk_entry_new (void)
{
return GTK_WIDGET (gtk_type_new (GTK_TYPE_ENTRY));
}
GtkWidget*
gtk_entry_new_with_max_length (guint16 max)
{
GtkEntry *entry;
entry = gtk_type_new (GTK_TYPE_ENTRY);
entry->text_max_length = max;
return GTK_WIDGET (entry);
}
void
gtk_entry_set_text (GtkEntry *entry,
const gchar *text)
{
gint tmp_pos;
GtkEditable *editable;
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
g_return_if_fail (text != NULL);
editable = GTK_EDITABLE (entry);
gtk_editable_delete_text (GTK_EDITABLE(entry), 0, -1);
tmp_pos = 0;
gtk_editable_insert_text (editable, text, strlen (text), &tmp_pos);
}
void
gtk_entry_append_text (GtkEntry *entry,
const gchar *text)
{
gint tmp_pos;
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
g_return_if_fail (text != NULL);
tmp_pos = entry->text_length;
gtk_editable_insert_text (GTK_EDITABLE(entry), text, -1, &tmp_pos);
}
void
gtk_entry_prepend_text (GtkEntry *entry,
const gchar *text)
{
gint tmp_pos;
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
g_return_if_fail (text != NULL);
tmp_pos = 0;
gtk_editable_insert_text (GTK_EDITABLE(entry), text, -1, &tmp_pos);
}
void
gtk_entry_set_position (GtkEntry *entry,
gint position)
{
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
gtk_editable_set_position (GTK_EDITABLE (entry), position);
}
void
gtk_entry_set_visibility (GtkEntry *entry,
gboolean visible)
{
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
entry->visible = visible ? TRUE : FALSE;
gtk_entry_recompute (entry);
}
void
gtk_entry_set_invisible_char (GtkEntry *entry,
gunichar ch)
{
g_return_if_fail (GTK_IS_ENTRY (entry));
if (ch == entry->invisible_char)
return;
entry->invisible_char = ch;
gtk_entry_recompute (entry);
}
void
gtk_entry_set_editable(GtkEntry *entry,
gboolean editable)
{
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
gtk_editable_set_editable (GTK_EDITABLE (entry), editable);
}
gchar*
gtk_entry_get_text (GtkEntry *entry)
{
g_return_val_if_fail (entry != NULL, NULL);
g_return_val_if_fail (GTK_IS_ENTRY (entry), NULL);
return entry->text;
}
void
gtk_entry_select_region (GtkEntry *entry,
gint start,
gint end)
{
gtk_editable_select_region (GTK_EDITABLE (entry), start, end);
}
void
gtk_entry_set_max_length (GtkEntry *entry,
guint16 max)
{
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
if (max && entry->text_length > max)
gtk_editable_delete_text (GTK_EDITABLE(entry), max, -1);
entry->text_max_length = max;
}
/**
* gtk_entry_set_has_frame:
* @entry: a #GtkEntry
* @setting: new value
*
* Sets whether the entry has a beveled frame around it.
**/
void
gtk_entry_set_has_frame (GtkEntry *entry,
gboolean setting)
{
g_return_if_fail (GTK_IS_ENTRY (entry));
setting = (setting != FALSE);
if (entry->has_frame != setting)
gtk_widget_queue_resize (GTK_WIDGET (entry));
entry->has_frame = setting;
}
/**
* gtk_entry_get_has_frame:
* @entry: a #GtkEntry
*
*
*
* Return value: whether the entry has a beveled frame
**/
gboolean
gtk_entry_get_has_frame (GtkEntry *entry)
{
g_return_val_if_fail (GTK_IS_ENTRY (entry), FALSE);
return entry->has_frame;
}
/* Quick hack of a popup menu
*/
static void
activate_cb (GtkWidget *menuitem,
GtkEntry *entry)
{
const gchar *signal = gtk_object_get_data (GTK_OBJECT (menuitem), "gtk-signal");
gtk_signal_emit_by_name (GTK_OBJECT (entry), signal);
}
static void
append_action_signal (GtkEntry *entry,
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, entry);
gtk_widget_show (menuitem);
gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
}
static void
popup_menu_detach (GtkWidget *attach_widget,
GtkMenu *menu)
{
GTK_ENTRY (attach_widget)->popup_menu = NULL;
}
static void
gtk_entry_popup_menu (GtkEntry *entry,
GdkEventButton *event)
{
if (!entry->popup_menu)
{
GtkWidget *menuitem;
entry->popup_menu = gtk_menu_new ();
gtk_menu_attach_to_widget (GTK_MENU (entry->popup_menu),
GTK_WIDGET (entry),
popup_menu_detach);
append_action_signal (entry, entry->popup_menu, _("Cut"), "cut_clipboard");
append_action_signal (entry, entry->popup_menu, _("Copy"), "copy_clipboard");
append_action_signal (entry, entry->popup_menu, _("Paste"), "paste_clipboard");
menuitem = gtk_menu_item_new (); /* Separator */
gtk_widget_show (menuitem);
gtk_menu_shell_append (GTK_MENU_SHELL (entry->popup_menu), menuitem);
gtk_im_multicontext_append_menuitems (GTK_IM_MULTICONTEXT (entry->im_context),
GTK_MENU_SHELL (entry->popup_menu));
}
gtk_menu_popup (GTK_MENU (entry->popup_menu), NULL, NULL,
NULL, NULL,
event->button, event->time);
}
static void
gtk_entry_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time)
{
GtkEntry *entry;
entry = GTK_ENTRY (widget);
entry->dnd_position = -1;
gtk_widget_queue_draw (widget);
}
static gboolean
gtk_entry_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
GtkEntry *entry;
GtkWidget *source_widget;
GdkDragAction suggested_action;
gint new_position, old_position;
gint sel1, sel2;
entry = GTK_ENTRY (widget);
x -= widget->style->xthickness;
y -= widget->style->ythickness;
old_position = entry->dnd_position;
new_position = gtk_entry_find_position (entry, x + entry->scroll_offset);
source_widget = gtk_drag_get_source_widget (context);
suggested_action = context->suggested_action;
if (!gtk_editable_get_selection_bounds (GTK_EDITABLE (entry), &sel1, &sel2) ||
new_position < sel1 || new_position > sel2)
{
if (source_widget == widget)
{
/* Default to MOVE, unless the user has
* pressed ctrl or alt to affect available actions
*/
if ((context->actions & GDK_ACTION_MOVE) != 0)
suggested_action = GDK_ACTION_MOVE;
}
entry->dnd_position = new_position;
}
else
{
if (source_widget == widget)
suggested_action = 0; /* Can't drop in selection where drag started */
entry->dnd_position = -1;
}
gdk_drag_status (context, suggested_action, time);
if (entry->dnd_position != old_position)
gtk_widget_queue_draw (widget);
return TRUE;
}
static void
gtk_entry_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time)
{
GtkEntry *entry;
GtkEditable *editable;
gchar *str;
entry = GTK_ENTRY (widget);
editable = GTK_EDITABLE (widget);
str = gtk_selection_data_get_text (selection_data);
if (str)
{
gint new_position;
gint sel1, sel2;
new_position = gtk_entry_find_position (entry, x + entry->scroll_offset);
if (!gtk_editable_get_selection_bounds (editable, &sel1, &sel2) ||
new_position < sel1 || new_position > sel2)
{
gtk_editable_insert_text (editable, str, -1, &new_position);
}
else
{
/* Replacing selection */
gtk_editable_delete_text (editable, sel1, sel2);
gtk_editable_insert_text (editable, str, -1, &sel1);
}
g_free (str);
}
}
static void
gtk_entry_drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time)
{
gint sel_start, sel_end;
GtkEditable *editable = GTK_EDITABLE (widget);
if (gtk_editable_get_selection_bounds (editable, &sel_start, &sel_end))
{
gchar *str = gtk_editable_get_chars (editable, sel_start, sel_end);
gtk_selection_data_set_text (selection_data, str);
g_free (str);
}
}
static void
gtk_entry_drag_data_delete (GtkWidget *widget,
GdkDragContext *context)
{
gint sel_start, sel_end;
GtkEditable *editable = GTK_EDITABLE (widget);
if (gtk_editable_get_selection_bounds (editable, &sel_start, &sel_end))
gtk_editable_delete_text (editable, sel_start, sel_end);
}
Reference in New Issue View Git Blame Copy Permalink