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gtk/gtk/gtkentry.c
Owen Taylor 69ef340389 Make logical motion and deletion by graphemes, not by characters. 
Thu May 17 17:10:13 2001  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtkentry.c: Make logical motion and deletion by graphemes,
	not by characters.

	* gtk/gtkentry.c: Handle "trailing" returns from Pango when they
	are not zero or one; that is, when graphemes of multiple characters
	are involved.

	* gtk/gtktextlayout.c (line_display_index_to_iter): Remove unnecessary
	FIXME.
2001-05-17 21:13:12 +00:00

3486 lines
95 KiB
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/* 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 "gtkseparatormenuitem.h"
#include "gtkselection.h"
#include "gtksignal.h"
#include "gtkwindow.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,
POPULATE_POPUP,
MOVE_CURSOR,
INSERT_AT_CURSOR,
DELETE_FROM_CURSOR,
CUT_CLIPBOARD,
COPY_CLIPBOARD,
PASTE_CLIPBOARD,
TOGGLE_OVERWRITE,
LAST_SIGNAL
};
enum {
PROP_0,
PROP_TEXT_POSITION,
PROP_EDITABLE,
PROP_MAX_LENGTH,
PROP_VISIBILITY,
PROP_INVISIBLE_CHAR,
PROP_ACTIVATES_DEFAULT,
PROP_WIDTH_CHARS
};
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_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_entry_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
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);
static void gtk_entry_real_activate (GtkEntry *entry);
static void gtk_entry_popup_menu (GtkWidget *widget);
/* 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_logically (GtkEntry *entry,
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_do_popup (GtkEntry *entry,
GdkEventButton *event);
static gboolean gtk_entry_mnemonic_activate (GtkWidget *widget,
gboolean group_cycling);
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;
gobject_class->set_property = gtk_entry_set_property;
gobject_class->get_property = gtk_entry_get_property;
widget_class->realize = gtk_entry_realize;
widget_class->unrealize = gtk_entry_unrealize;
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->mnemonic_activate = gtk_entry_mnemonic_activate;
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;
widget_class->popup_menu = gtk_entry_popup_menu;
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;
class->activate = gtk_entry_real_activate;
g_object_class_install_property (gobject_class,
PROP_TEXT_POSITION,
g_param_spec_int ("text_position",
_("Text Position"),
_("The current position of the insertion point"),
0,
G_MAXINT,
0,
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (gobject_class,
PROP_EDITABLE,
g_param_spec_boolean ("editable",
_("Editable"),
_("Whether the entry contents can be edited"),
TRUE,
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (gobject_class,
PROP_MAX_LENGTH,
g_param_spec_int ("max_length",
_("Maximum length"),
_("Maximum number of characters for this entry"),
-1,
G_MAXINT,
-1,
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (gobject_class,
PROP_VISIBILITY,
g_param_spec_boolean ("visibility",
_("Visibility"),
_("FALSE displays the \"invisible char\" instead of the actual text (password mode)"),
TRUE,
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (gobject_class,
PROP_INVISIBLE_CHAR,
g_param_spec_unichar ("invisible_char",
_("Invisible character"),
_("The character to use when masking entry contents (in \"password mode\")"),
'*',
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (gobject_class,
PROP_ACTIVATES_DEFAULT,
g_param_spec_boolean ("activates_default",
_("Activates default"),
_("Whether to activate the default widget (such as the default button in a dialog) when Enter is pressed."),
FALSE,
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (gobject_class,
PROP_WIDTH_CHARS,
g_param_spec_int ("width_chars",
_("Width in chars"),
_("Number of characters to leave space for in the entry."),
-1,
G_MAXINT,
-1,
G_PARAM_READABLE | G_PARAM_WRITABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_boxed ("cursor_color",
_("Cursor color"),
_("Color with which to draw insertion cursor"),
GDK_TYPE_COLOR,
G_PARAM_READABLE));
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);
signals[POPULATE_POPUP] =
gtk_signal_new ("populate_popup",
GTK_RUN_LAST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkEntryClass, populate_popup),
gtk_marshal_VOID__OBJECT,
GTK_TYPE_NONE, 1, GTK_TYPE_MENU);
/* 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_KP_Right, 0,
GTK_MOVEMENT_VISUAL_POSITIONS, 1);
add_move_binding (binding_set, GDK_KP_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_KP_Right, GDK_CONTROL_MASK,
GTK_MOVEMENT_WORDS, 1);
add_move_binding (binding_set, GDK_KP_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_KP_Home, 0,
GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
add_move_binding (binding_set, GDK_KP_End, 0,
GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
add_move_binding (binding_set, GDK_Home, GDK_CONTROL_MASK,
GTK_MOVEMENT_BUFFER_ENDS, -1);
add_move_binding (binding_set, GDK_End, GDK_CONTROL_MASK,
GTK_MOVEMENT_BUFFER_ENDS, 1);
add_move_binding (binding_set, GDK_KP_Home, GDK_CONTROL_MASK,
GTK_MOVEMENT_BUFFER_ENDS, -1);
add_move_binding (binding_set, GDK_KP_End, GDK_CONTROL_MASK,
GTK_MOVEMENT_BUFFER_ENDS, 1);
/* Activate */
gtk_binding_entry_add_signal (binding_set, GDK_Return, 0,
"activate", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KP_Enter, 0,
"activate", 0);
/* Deleting text */
gtk_binding_entry_add_signal (binding_set, GDK_Delete, 0,
"delete_from_cursor", 2,
GTK_TYPE_ENUM, GTK_DELETE_CHARS,
GTK_TYPE_INT, 1);
gtk_binding_entry_add_signal (binding_set, GDK_KP_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_KP_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_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkEntry *entry = GTK_ENTRY (object);
switch (prop_id)
{
case PROP_TEXT_POSITION:
gtk_editable_set_position (GTK_EDITABLE (object),
g_value_get_int (value));
break;
case PROP_EDITABLE:
{
gboolean new_value = g_value_get_boolean (value);
if (new_value != entry->editable)
{
entry->editable = new_value;
gtk_entry_queue_draw (entry);
}
}
break;
case PROP_MAX_LENGTH:
gtk_entry_set_max_length (entry, g_value_get_int (value));
break;
case PROP_VISIBILITY:
gtk_entry_set_visibility (entry, g_value_get_boolean (value));
break;
case PROP_INVISIBLE_CHAR:
gtk_entry_set_invisible_char (entry, g_value_get_uint (value));
break;
case PROP_ACTIVATES_DEFAULT:
gtk_entry_set_activates_default (entry, g_value_get_boolean (value));
break;
case PROP_WIDTH_CHARS:
gtk_entry_set_width_chars (entry, g_value_get_int (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_entry_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkEntry *entry;
entry = GTK_ENTRY (object);
switch (prop_id)
{
case PROP_TEXT_POSITION:
g_value_set_int (value, entry->current_pos);
break;
case PROP_EDITABLE:
g_value_set_boolean (value, entry->editable);
break;
case PROP_MAX_LENGTH:
g_value_set_int (value, entry->text_max_length);
break;
case PROP_VISIBILITY:
g_value_set_boolean (value, entry->visible);
break;
case PROP_INVISIBLE_CHAR:
g_value_set_uint (value, entry->invisible_char);
break;
case PROP_ACTIVATES_DEFAULT:
g_value_set_boolean (value, entry->activates_default);
break;
case PROP_WIDTH_CHARS:
g_value_set_int (value, entry->width_chars);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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->width_chars = -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_cursor_gc (GtkEntry *entry)
{
GdkColor *cursor_color;
if (entry->cursor_gc)
gdk_gc_unref (entry->cursor_gc);
gtk_widget_style_get (GTK_WIDGET (entry), "cursor_color", &cursor_color, NULL);
if (cursor_color)
{
entry->cursor_gc = gdk_gc_new (entry->text_area);
gdk_gc_set_rgb_fg_color (entry->cursor_gc, cursor_color);
}
else
entry->cursor_gc = gdk_gc_ref (GTK_WIDGET (entry)->style->base_gc[GTK_STATE_SELECTED]);
}
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 |
GDK_ENTER_NOTIFY_MASK |
GDK_LEAVE_NOTIFY_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);
gdk_cursor_destroy (attributes.cursor);
widget->style = gtk_style_attach (widget->style, widget->window);
gtk_entry_realize_cursor_gc (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)]);
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->cursor_gc)
{
gdk_gc_unref (entry->cursor_gc);
entry->cursor_gc = NULL;
}
if (entry->popup_menu)
{
gtk_widget_destroy (entry->popup_menu);
entry->popup_menu = NULL;
}
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;
}
if (entry->width_chars < 0)
requisition->width = MIN_ENTRY_WIDTH + xborder * 2;
else
{
requisition->width =
PANGO_PIXELS (metrics.approximate_char_width) * entry->width_chars +
xborder * 2;
}
requisition->height = ((metrics.ascent + metrics.descent) / PANGO_SCALE +
yborder * 2);
}
static void
get_borders (GtkEntry *entry,
gint *xborder,
gint *yborder)
{
GtkWidget *widget;
widget = GTK_WIDGET (entry);
if (entry->has_frame)
{
if (xborder)
*xborder = widget->style->xthickness;
if (yborder)
*yborder = widget->style->ythickness;
}
else
{
/* 1 pixel for focus rect */
if (xborder)
*xborder = 1;
if (yborder)
*yborder = 1;
}
}
static void
get_text_area_size (GtkEntry *entry,
gint *x,
gint *y,
gint *width,
gint *height)
{
gint xborder, yborder;
GtkRequisition requisition;
GtkWidget *widget;
widget = GTK_WIDGET (entry);
gtk_widget_get_child_requisition (widget, &requisition);
get_borders (entry, &xborder, &yborder);
if (x)
*x = xborder;
if (y)
*y = yborder;
if (width)
*width = GTK_WIDGET (entry)->allocation.width - xborder * 2;
if (height)
*height = requisition.height - yborder * 2;
}
static void
get_widget_window_size (GtkEntry *entry,
gint *x,
gint *y,
gint *width,
gint *height)
{
GtkRequisition requisition;
GtkWidget *widget;
widget = GTK_WIDGET (entry);
gtk_widget_get_child_requisition (widget, &requisition);
if (x)
*x = widget->allocation.x;
if (y)
*y = widget->allocation.y + (widget->allocation.height - requisition.height) / 2;
if (width)
*width = widget->allocation.width;
if (height)
*height = requisition.height;
}
static void
gtk_entry_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkEntry *entry;
GtkEditable *editable;
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 (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
*/
gint x, y, width, height;
get_widget_window_size (entry, &x, &y, &width, &height);
gdk_window_move_resize (widget->window,
x, y, width, height);
get_text_area_size (entry, &x, &y, &width, &height);
gdk_window_move_resize (entry->text_area,
x, y, width, height);
gtk_entry_recompute (entry);
}
}
static void
gtk_entry_draw_focus (GtkWidget *widget)
{
gint width, height;
GtkEntry *entry;
gboolean interior_focus;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_ENTRY (widget));
gtk_widget_style_get (widget, "interior_focus", &interior_focus, NULL);
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) && !interior_focus)
{
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) && !interior_focus)
{
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_entry_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)
{
gboolean have_selection = gtk_editable_get_selection_bounds (editable, &sel_start, &sel_end);
if (event->state & GDK_SHIFT_MASK)
{
if (!have_selection) /* select from the current position to the clicked position */
sel_start = sel_end = entry->current_pos;
if (tmp_pos > sel_start && tmp_pos < sel_end)
{
/* Truncate current selection */
entry->current_pos = tmp_pos;
}
else
{
gboolean extend_to_left;
gint start, end;
/* Figure out what click selects and extend current selection */
switch (event->type)
{
case GDK_BUTTON_PRESS:
entry->current_pos = entry->selection_bound = tmp_pos;
break;
case GDK_2BUTTON_PRESS:
gtk_entry_select_word (entry);
break;
case GDK_3BUTTON_PRESS:
gtk_entry_select_line (entry);
break;
default:
break;
}
start = MIN (entry->current_pos, entry->selection_bound);
start = MIN (sel_start, start);
end = MAX (entry->current_pos, entry->selection_bound);
end = MAX (sel_end, end);
if (tmp_pos == sel_start || tmp_pos == sel_end)
extend_to_left = (tmp_pos == start);
else
extend_to_left = (end == sel_end);
if (extend_to_left)
{
entry->selection_bound = end;
entry->current_pos = start;
}
else
{
entry->selection_bound = start;
entry->current_pos = end;
}
}
gtk_entry_recompute (entry);
}
else /* no shift key */
switch (event->type)
{
case GDK_BUTTON_PRESS:
if (have_selection && 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:
/* We ALWAYS receive a GDK_BUTTON_PRESS immediately before
* receiving a GDK_2BUTTON_PRESS so we need to reset
* entry->in_drag which may have been set above
*/
entry->in_drag = FALSE;
gtk_entry_select_word (entry);
break;
case GDK_3BUTTON_PRESS:
/* We ALWAYS receive a GDK_BUTTON_PRESS immediately before
* receiving a GDK_3BUTTON_PRESS so we need to reset
* entry->in_drag which may have been set above
*/
entry->in_drag = FALSE;
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_do_popup (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 TRUE;
}
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;
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_entry_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_entry_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);
g_object_notify (G_OBJECT (entry), "text_position");
}
}
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)]);
gtk_entry_realize_cursor_gc (entry);
}
}
/* 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;
if (new_text_length < 0)
new_text_length = strlen (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;
new_text_length = g_utf8_offset_to_pointer (new_text, n_chars) - new_text;
}
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 + 1 - 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 = gtk_entry_move_logically (entry, new_pos, count);
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 = gtk_entry_move_logically (entry, 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;
}
static void
gtk_entry_real_activate (GtkEntry *entry)
{
GtkWindow *window;
GtkWidget *widget;
widget = GTK_WIDGET (entry);
if (entry->activates_default)
{
window = (GtkWindow *) gtk_widget_get_ancestor (widget, GTK_TYPE_WINDOW);
if (window &&
window->default_widget != widget)
gtk_window_activate_default (window);
}
}
/* 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_delete_selection (editable);
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 void
update_im_cursor_location (GtkEntry *entry)
{
GdkRectangle area;
gint strong_x;
gint strong_xoffset;
gint x, y, area_width, area_height;
gtk_entry_get_cursor_locations (entry, CURSOR_STANDARD, &strong_x, NULL)
;
get_text_area_size (entry, &x, &y, &area_width, &area_height);
strong_xoffset = strong_x - entry->scroll_offset;
if (strong_xoffset < 0)
{
strong_xoffset = 0;
}
else if (strong_xoffset > area_width)
{
strong_xoffset = area_width;
}
area.x = x + strong_xoffset;
area.y = y + area_height;
area.width = area_width;
area.height = area_height;
gtk_im_context_set_cursor_location (entry->im_context, &area);
}
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;
update_im_cursor_location (entry);
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;
pango_layout_set_single_paragraph_mode (layout, TRUE);
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
get_layout_position (GtkEntry *entry,
gint *x,
gint *y)
{
PangoLayout *layout;
PangoRectangle logical_rect;
gint area_width, area_height;
gint y_pos;
PangoLayoutLine *line;
layout = gtk_entry_get_layout (entry, TRUE);
get_text_area_size (entry, NULL, NULL, &area_width, &area_height);
area_height = PANGO_SCALE * (area_height - 2 * INNER_BORDER);
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;
if (x)
*x = INNER_BORDER - entry->scroll_offset;
if (y)
*y = y_pos;
}
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);
gint area_width, area_height;
gint x, y;
gint start_pos, end_pos;
widget = GTK_WIDGET (entry);
get_layout_position (entry, &x, &y);
get_text_area_size (entry, NULL, NULL, &area_width, &area_height);
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);
gdk_draw_layout (entry->text_area, widget->style->text_gc [widget->state],
x, y,
layout);
if (gtk_editable_get_selection_bounds (GTK_EDITABLE (entry), &start_pos, &end_pos))
{
gint *ranges;
gint n_ranges, i;
PangoRectangle logical_rect;
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 ();
line = pango_layout_get_lines (layout)->data;
pango_layout_line_get_x_ranges (line, start_index, end_index, &ranges, &n_ranges);
pango_layout_get_extents (layout, NULL, &logical_rect);
for (i=0; i < n_ranges; i++)
{
GdkRectangle rect;
rect.x = INNER_BORDER - entry->scroll_offset + ranges[2*i] / PANGO_SCALE;
rect.y = y;
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->base_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->text_gc [GTK_STATE_SELECTED], clip_region);
gdk_draw_layout (entry->text_area, widget->style->text_gc [GTK_STATE_SELECTED],
x, y,
layout);
gdk_gc_set_clip_region (widget->style->text_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, entry->cursor_gc,
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->text_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);
pos += trailing;
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;
index = new_index;
while (new_trailing--)
index = g_utf8_next_char (entry->text + new_index) - entry->text;
}
g_object_unref (G_OBJECT (layout));
return g_utf8_pointer_to_offset (text, text + index);
}
static gint
gtk_entry_move_logically (GtkEntry *entry,
gint start,
gint count)
{
gint new_pos = start;
/* Prevent any leak of information */
if (!entry->visible)
{
new_pos = CLAMP (start + count, 0, entry->text_length);
}
else if (entry->text)
{
PangoLayout *layout = gtk_entry_get_layout (entry, FALSE);
PangoLogAttr *log_attrs;
gint n_attrs;
pango_layout_get_log_attrs (layout, &log_attrs, &n_attrs);
while (count > 0 && new_pos < entry->text_length)
{
do
new_pos++;
while (new_pos < entry->text_length && !log_attrs[new_pos].is_cursor_position);
count--;
}
while (count < 0 && new_pos > 0)
{
do
new_pos--;
while (new_pos > 0 && !log_attrs[new_pos].is_cursor_position);
count++;
}
g_free (log_attrs);
g_object_unref (G_OBJECT (layout));
}
return new_pos;
}
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 (gint 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;
g_object_notify (G_OBJECT (entry), "visibility");
gtk_entry_recompute (entry);
}
/**
* gtk_entry_set_invisible_char:
* @entry: a #GtkEntry
* @ch: a Unicode character
*
* Sets the character to use in place of the actual text when
* gtk_entry_set_visibility() has been called to set text visibility
* to %FALSE. i.e. this is the character used in "password mode" to
* show the user how many characters have been typed. The default
* invisible char is an asterisk ('*'). If you set the invisible char
* to 0, then the user will get no feedback at all; there will be
* no text on the screen as they type.
*
**/
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;
g_object_notify (G_OBJECT (entry), "invisible_char");
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);
}
G_CONST_RETURN 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,
gint max)
{
g_return_if_fail (entry != NULL);
g_return_if_fail (GTK_IS_ENTRY (entry));
if (max > 0 && entry->text_length > max)
gtk_editable_delete_text (GTK_EDITABLE(entry), max, -1);
entry->text_max_length = max;
g_object_notify (G_OBJECT (entry), "max_length");
}
/**
* gtk_entry_set_activates_default:
* @entry: a #GtkEntry
* @setting: %TRUE to activate window's default widget on Enter keypress
*
* If @setting is %TRUE, pressing Enter in the @entry will activate the default
* widget for the window containing the entry. This usually means that
* the dialog box containing the entry will be closed, since the default
* widget is usually one of the dialog buttons.
*
* (For experts: if @setting is %TRUE, the entry calls
* gtk_window_activate_default() on the window containing the entry, in
* the default handler for the "activate" signal.)
*
**/
void
gtk_entry_set_activates_default (GtkEntry *entry,
gboolean setting)
{
g_return_if_fail (GTK_IS_ENTRY (entry));
setting = setting != FALSE;
if (setting != entry->activates_default)
{
entry->activates_default = setting;
g_object_notify (G_OBJECT (entry), "activates_default");
}
}
/**
* gtk_entry_get_activates_default:
* @entry: a #GtkEntry
*
* Retrieves the value set by gtk_entry_set_activates_default().
*
* Return value: %TRUE if the entry will activate the default widget
**/
gboolean
gtk_entry_get_activates_default (GtkEntry *entry)
{
g_return_val_if_fail (GTK_IS_ENTRY (entry), FALSE);
return entry->activates_default;
}
/**
* gtk_entry_set_width_chars:
* @entry: a #GtkEntry
* @n_chars: width in chars
*
* Changes the size request of the entry to be about the right size
* for @n_chars characters. Note that it changes the size
* <emphasize>request</emphasize>, the size can still be affected by
* how you pack the widget into containers. If @n_chars is -1, the
* size reverts to the default entry size.
*
**/
void
gtk_entry_set_width_chars (GtkEntry *entry,
gint n_chars)
{
g_return_if_fail (GTK_IS_ENTRY (entry));
if (entry->width_chars != n_chars)
{
entry->width_chars = n_chars;
g_object_notify (G_OBJECT (entry), "width_chars");
gtk_widget_queue_resize (GTK_WIDGET (entry));
}
}
/**
* gtk_entry_get_width_chars:
* @entry: a #GtkEntry
*
* Gets the value set by gtk_entry_set_width_chars().
*
* Return value: number of chars to request space for, or negative if unset
**/
gint
gtk_entry_get_width_chars (GtkEntry *entry)
{
return entry->width_chars;
}
/**
* 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
*
* Gets the value set by gtk_entry_set_has_frame().
*
* 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;
}
/**
* gtk_entry_get_layout_offsets:
* @entry: a #GtkEntry
* @x: location to store X coordinate of layout
* @y: location to store Y coordinate of layout
*
* Obtains the position of the #PangoLayout used to render text
* in the entry, in widget coordinates. Useful if you want to line
* up the text in an entry with some other text, e.g. when using the
* entry to implement editable cells in a sheet widget.
*
**/
void
gtk_entry_get_layout_offsets (GtkEntry *entry,
gint *x,
gint *y)
{
gint text_area_x, text_area_y;
g_return_if_fail (GTK_IS_ENTRY (entry));
/* this gets coords relative to text area */
get_layout_position (entry, x, y);
/* convert to widget coords */
get_text_area_size (entry, &text_area_x, &text_area_y, NULL, NULL);
if (x)
*x += text_area_x;
if (y)
*y += text_area_y;
}
/* 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 gboolean
gtk_entry_mnemonic_activate (GtkWidget *widget,
gboolean group_cycling)
{
gtk_widget_grab_focus (widget);
return TRUE;
}
static void
append_action_signal (GtkEntry *entry,
GtkWidget *menu,
const gchar *label,
const gchar *signal,
gboolean sensitive)
{
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",
GTK_SIGNAL_FUNC (activate_cb), entry);
gtk_widget_set_sensitive (menuitem, sensitive);
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
popup_position_func (GtkMenu *menu,
gint *x,
gint *y,
gboolean *push_in,
gpointer user_data)
{
GtkEntry *entry;
GtkWidget *widget;
GtkRequisition req;
entry = GTK_ENTRY (user_data);
widget = GTK_WIDGET (entry);
g_return_if_fail (GTK_WIDGET_REALIZED (entry));
gdk_window_get_origin (widget->window, x, y);
gtk_widget_size_request (entry->popup_menu, &req);
*x += widget->allocation.width / 2;
*y += widget->allocation.height;
*x = CLAMP (*x, 0, MAX (0, gdk_screen_width () - req.width));
*y = CLAMP (*y, 0, MAX (0, gdk_screen_height () - req.height));
}
static void
gtk_entry_do_popup (GtkEntry *entry,
GdkEventButton *event)
{
GtkWidget *menuitem;
GtkWidget *submenu;
gboolean have_selection;
if (entry->popup_menu)
gtk_widget_destroy (entry->popup_menu);
entry->popup_menu = gtk_menu_new ();
gtk_menu_attach_to_widget (GTK_MENU (entry->popup_menu),
GTK_WIDGET (entry),
popup_menu_detach);
have_selection = entry->current_pos != entry->selection_bound;
append_action_signal (entry, entry->popup_menu, _("Cut"), "cut_clipboard",
have_selection);
append_action_signal (entry, entry->popup_menu, _("Copy"), "copy_clipboard",
have_selection);
append_action_signal (entry, entry->popup_menu, _("Paste"), "paste_clipboard",
TRUE);
menuitem = gtk_separator_menu_item_new ();
gtk_widget_show (menuitem);
gtk_menu_shell_append (GTK_MENU_SHELL (entry->popup_menu), menuitem);
menuitem = gtk_menu_item_new_with_label (_("Input Methods"));
gtk_widget_show (menuitem);
submenu = gtk_menu_new ();
gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
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 (submenu));
gtk_signal_emit (GTK_OBJECT (entry),
signals[POPULATE_POPUP],
entry->popup_menu);
if (event)
gtk_menu_popup (GTK_MENU (entry->popup_menu), NULL, NULL,
NULL, NULL,
event->button, event->time);
else
gtk_menu_popup (GTK_MENU (entry->popup_menu), NULL, NULL,
popup_position_func, entry,
0, gtk_get_current_event_time ());
}
static void
gtk_entry_popup_menu (GtkWidget *widget)
{
gtk_entry_do_popup (GTK_ENTRY (widget), NULL);
}
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);
}
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