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gtk2/gtk/gtkwidget.c
Owen Taylor 11d37c5067 gtkbutton.c gtkclist.c gtkdrawingarea.c gtkentry.c gtkeventbox.c 
Sun Jan 18 09:57:00 1998  Owen Taylor  <owt1@cornell.edu>
* gtkbutton.c gtkclist.c gtkdrawingarea.c gtkentry.c gtkeventbox.c
  gtkfixed.c gtkhandlebox.c gtkhscale.c gtkhscrollbar.c gtkitem.c
  gtklist.c gtkmenushell.c gtkmisc.c gtknotebook.c gtkpaned.c
  gtkpreview.c gtkprogressbar.c gtkruler.c gtktext.c gtktree.c
  gtkviewport.c gtkvscale.c gtkvscrollbar.c gtkwidget.{c,h}

  Added gtk_widget_set_parent and gtk_widget_get_parent. All
  widgets should use:

   gtk_widget_get_parent() instead of widget->parent->window.

  Any widget that wants to have children not in the parent window,
  should use gtk_widget_set_parent () in their realize() and
  add () routines.

  CList and Viewport widgets changed to do this. (Viewport
  widget using code from gtk-fortier-980117-0.patch.)
1998-01-18 15:09:10 +00:00

3741 lines
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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 Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdarg.h>
#include <string.h>
#include "gtkcontainer.h"
#include "gtkmain.h"
#include "gtkrc.h"
#include "gtkselection.h"
#include "gtksignal.h"
#include "gtkwidget.h"
#include "gtkwindow.h"
#include "gdk/gdk.h"
#include "gdk/gdkx.h"
#define WIDGET_CLASS(w) GTK_WIDGET_CLASS (GTK_OBJECT (w)->klass)
enum {
SHOW,
HIDE,
MAP,
UNMAP,
REALIZE,
UNREALIZE,
DRAW,
DRAW_FOCUS,
DRAW_DEFAULT,
SIZE_REQUEST,
SIZE_ALLOCATE,
STATE_CHANGED,
INSTALL_ACCELERATOR,
REMOVE_ACCELERATOR,
EVENT,
BUTTON_PRESS_EVENT,
BUTTON_RELEASE_EVENT,
MOTION_NOTIFY_EVENT,
DELETE_EVENT,
DESTROY_EVENT,
EXPOSE_EVENT,
KEY_PRESS_EVENT,
KEY_RELEASE_EVENT,
ENTER_NOTIFY_EVENT,
LEAVE_NOTIFY_EVENT,
CONFIGURE_EVENT,
FOCUS_IN_EVENT,
FOCUS_OUT_EVENT,
MAP_EVENT,
UNMAP_EVENT,
PROPERTY_NOTIFY_EVENT,
SELECTION_CLEAR_EVENT,
SELECTION_REQUEST_EVENT,
SELECTION_NOTIFY_EVENT,
SELECTION_RECEIVED,
PROXIMITY_IN_EVENT,
PROXIMITY_OUT_EVENT,
DRAG_BEGIN_EVENT,
DRAG_REQUEST_EVENT,
DROP_ENTER_EVENT,
DROP_LEAVE_EVENT,
DROP_DATA_AVAILABLE_EVENT,
OTHER_EVENT,
CLIENT_EVENT,
VISIBILITY_NOTIFY_EVENT,
LAST_SIGNAL
};
enum {
ARG_0,
ARG_X,
ARG_Y,
ARG_WIDTH,
ARG_HEIGHT,
ARG_VISIBLE,
ARG_SENSITIVE,
ARG_CAN_FOCUS,
ARG_HAS_FOCUS,
ARG_CAN_DEFAULT,
ARG_HAS_DEFAULT,
ARG_EVENTS,
ARG_EXTENSION_EVENTS,
ARG_NAME,
ARG_STYLE,
ARG_PARENT
};
typedef void (*GtkWidgetSignal1) (GtkObject *object,
gpointer arg1,
gpointer data);
typedef gint (*GtkWidgetSignal2) (GtkObject *object,
gpointer arg1,
gchar arg2,
gchar arg3,
gpointer data);
typedef void (*GtkWidgetSignal3) (GtkObject *object,
gpointer arg1,
gpointer data);
typedef gint (*GtkWidgetSignal4) (GtkObject *object,
gpointer arg1,
gpointer data);
static void gtk_widget_marshal_signal_1 (GtkObject *object,
GtkSignalFunc func,
gpointer func_data,
GtkArg *args);
static void gtk_widget_marshal_signal_2 (GtkObject *object,
GtkSignalFunc func,
gpointer func_data,
GtkArg *args);
static void gtk_widget_marshal_signal_3 (GtkObject *object,
GtkSignalFunc func,
gpointer func_data,
GtkArg *args);
static void gtk_widget_marshal_signal_4 (GtkObject *object,
GtkSignalFunc func,
gpointer func_data,
GtkArg *args);
static void gtk_widget_class_init (GtkWidgetClass *klass);
static void gtk_widget_init (GtkWidget *widget);
static void gtk_widget_set_arg (GtkWidget *widget,
GtkArg *arg,
guint arg_id);
static void gtk_widget_get_arg (GtkWidget *widget,
GtkArg *arg,
guint arg_id);
static void gtk_real_widget_destroy (GtkObject *object);
static void gtk_real_widget_show (GtkWidget *widget);
static void gtk_real_widget_hide (GtkWidget *widget);
static void gtk_real_widget_map (GtkWidget *widget);
static void gtk_real_widget_unmap (GtkWidget *widget);
static void gtk_real_widget_realize (GtkWidget *widget);
static void gtk_real_widget_unrealize (GtkWidget *widget);
static void gtk_real_widget_draw (GtkWidget *widget,
GdkRectangle *area);
static gint gtk_real_widget_queue_draw (GtkWidget *widget);
static gint gtk_real_widget_queue_resize (GtkWidget *widget);
static void gtk_real_widget_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static GdkColormap* gtk_widget_peek_colormap (void);
static GdkVisual* gtk_widget_peek_visual (void);
static GtkStyle* gtk_widget_peek_style (void);
static void gtk_widget_reparent_container_child (GtkWidget *widget,
gpointer client_data);
static void gtk_widget_set_parent_sensitive (GtkWidget *widget,
gpointer client_data);
static void gtk_widget_propagate_restore (GtkWidget *widget,
gpointer client_data);
static void gtk_widget_propagate_state (GtkWidget *widget,
gpointer client_data);
static void gtk_widget_draw_children_recurse (GtkWidget *widget,
gpointer client_data);
static void gtk_widget_set_style_internal (GtkWidget *widget,
GtkStyle *style);
static void gtk_widget_set_style_recurse (GtkWidget *widget,
gpointer client_data);
extern GtkArg* gtk_object_collect_args (guint *nargs,
va_list args1,
va_list args2);
static GtkWidgetAuxInfo* gtk_widget_aux_info_new (void);
static void gtk_widget_aux_info_destroy (GtkWidgetAuxInfo *aux_info);
static GtkObjectClass *parent_class = NULL;
static gint widget_signals[LAST_SIGNAL] = { 0 };
static GMemChunk *aux_info_mem_chunk = NULL;
static GdkColormap *default_colormap = NULL;
static GdkVisual *default_visual = NULL;
static GtkStyle *default_style = NULL;
static GSList *colormap_stack = NULL;
static GSList *visual_stack = NULL;
static GSList *style_stack = NULL;
static const char *aux_info_key = "aux_info";
static const char *colormap_key = "colormap";
static const char *visual_key = "visual";
static const char *event_key = "event_mask";
static const char *resize_widgets_key = "resize_widgets";
static const char *extension_event_key = "extension_event_mode";
static const char *parent_window_key = "parent_window";
static const char *redraw_handler_key = "redraw_handler_tag";
static const char *resize_handler_key = "resize_handler_tag";
static const char *shape_info_key = "shape_info";
/*****************************************
* gtk_widget_get_type:
*
* arguments:
*
* results:
*****************************************/
guint
gtk_widget_get_type ()
{
static guint widget_type = 0;
if (!widget_type)
{
GtkTypeInfo widget_info =
{
"GtkWidget",
sizeof (GtkWidget),
sizeof (GtkWidgetClass),
(GtkClassInitFunc) gtk_widget_class_init,
(GtkObjectInitFunc) gtk_widget_init,
(GtkArgSetFunc) gtk_widget_set_arg,
(GtkArgGetFunc) gtk_widget_get_arg,
};
widget_type = gtk_type_unique (gtk_object_get_type (), &widget_info);
}
return widget_type;
}
/*****************************************
* gtk_widget_class_init:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_widget_class_init (GtkWidgetClass *klass)
{
GtkObjectClass *object_class;
object_class = (GtkObjectClass*) klass;
parent_class = gtk_type_class (gtk_object_get_type ());
gtk_object_add_arg_type ("GtkWidget::x", GTK_TYPE_INT, ARG_X);
gtk_object_add_arg_type ("GtkWidget::y", GTK_TYPE_INT, ARG_Y);
gtk_object_add_arg_type ("GtkWidget::width", GTK_TYPE_INT, ARG_WIDTH);
gtk_object_add_arg_type ("GtkWidget::height", GTK_TYPE_INT, ARG_HEIGHT);
gtk_object_add_arg_type ("GtkWidget::visible", GTK_TYPE_BOOL, ARG_VISIBLE);
gtk_object_add_arg_type ("GtkWidget::sensitive", GTK_TYPE_BOOL, ARG_SENSITIVE);
gtk_object_add_arg_type ("GtkWidget::can_focus", GTK_TYPE_BOOL, ARG_CAN_FOCUS);
gtk_object_add_arg_type ("GtkWidget::has_focus", GTK_TYPE_BOOL, ARG_HAS_FOCUS);
gtk_object_add_arg_type ("GtkWidget::can_default", GTK_TYPE_BOOL, ARG_CAN_DEFAULT);
gtk_object_add_arg_type ("GtkWidget::has_default", GTK_TYPE_BOOL, ARG_HAS_DEFAULT);
gtk_object_add_arg_type ("GtkWidget::events", GTK_TYPE_GDK_EVENT_MASK, ARG_EVENTS);
gtk_object_add_arg_type ("GtkWidget::extension_events", GTK_TYPE_GDK_EVENT_MASK, ARG_EXTENSION_EVENTS);
gtk_object_add_arg_type ("GtkWidget::name", GTK_TYPE_STRING, ARG_NAME);
gtk_object_add_arg_type ("GtkWidget::style", GTK_TYPE_STYLE, ARG_STYLE);
gtk_object_add_arg_type ("GtkWidget::parent", GTK_TYPE_CONTAINER, ARG_PARENT);
widget_signals[SHOW] =
gtk_signal_new ("show",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, show),
gtk_signal_default_marshaller,
GTK_TYPE_NONE, 0);
widget_signals[HIDE] =
gtk_signal_new ("hide",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, hide),
gtk_signal_default_marshaller,
GTK_TYPE_NONE, 0);
widget_signals[MAP] =
gtk_signal_new ("map",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, map),
gtk_signal_default_marshaller,
GTK_TYPE_NONE, 0);
widget_signals[UNMAP] =
gtk_signal_new ("unmap",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, unmap),
gtk_signal_default_marshaller,
GTK_TYPE_NONE, 0);
widget_signals[REALIZE] =
gtk_signal_new ("realize",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, realize),
gtk_signal_default_marshaller,
GTK_TYPE_NONE, 0);
widget_signals[UNREALIZE] =
gtk_signal_new ("unrealize",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, unrealize),
gtk_signal_default_marshaller,
GTK_TYPE_NONE, 0);
widget_signals[DRAW] =
gtk_signal_new ("draw",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, draw),
gtk_widget_marshal_signal_1,
GTK_TYPE_NONE, 1,
GTK_TYPE_POINTER);
widget_signals[DRAW_FOCUS] =
gtk_signal_new ("draw_focus",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, draw_focus),
gtk_signal_default_marshaller,
GTK_TYPE_NONE, 0);
widget_signals[DRAW_DEFAULT] =
gtk_signal_new ("draw_default",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, draw_default),
gtk_signal_default_marshaller,
GTK_TYPE_NONE, 0);
widget_signals[SIZE_REQUEST] =
gtk_signal_new ("size_request",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, size_request),
gtk_widget_marshal_signal_1,
GTK_TYPE_NONE, 1,
GTK_TYPE_POINTER);
widget_signals[SIZE_ALLOCATE] =
gtk_signal_new ("size_allocate",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, size_allocate),
gtk_widget_marshal_signal_1,
GTK_TYPE_NONE, 1,
GTK_TYPE_POINTER);
widget_signals[STATE_CHANGED] =
gtk_signal_new ("state_changed",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, state_changed),
gtk_signal_default_marshaller,
GTK_TYPE_NONE, 0);
widget_signals[INSTALL_ACCELERATOR] =
gtk_signal_new ("install_accelerator",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, install_accelerator),
gtk_widget_marshal_signal_2,
GTK_TYPE_BOOL, 3,
GTK_TYPE_STRING,
GTK_TYPE_CHAR,
GTK_TYPE_INT);
widget_signals[REMOVE_ACCELERATOR] =
gtk_signal_new ("remove_accelerator",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, remove_accelerator),
gtk_widget_marshal_signal_3,
GTK_TYPE_NONE, 1,
GTK_TYPE_STRING);
widget_signals[EVENT] =
gtk_signal_new ("event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[BUTTON_PRESS_EVENT] =
gtk_signal_new ("button_press_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, button_press_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[BUTTON_RELEASE_EVENT] =
gtk_signal_new ("button_release_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, button_release_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[MOTION_NOTIFY_EVENT] =
gtk_signal_new ("motion_notify_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, motion_notify_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[DELETE_EVENT] =
gtk_signal_new ("delete_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, delete_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[DESTROY_EVENT] =
gtk_signal_new ("destroy_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, destroy_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[EXPOSE_EVENT] =
gtk_signal_new ("expose_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, expose_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[KEY_PRESS_EVENT] =
gtk_signal_new ("key_press_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, key_press_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[KEY_RELEASE_EVENT] =
gtk_signal_new ("key_release_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, key_release_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[ENTER_NOTIFY_EVENT] =
gtk_signal_new ("enter_notify_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, enter_notify_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[LEAVE_NOTIFY_EVENT] =
gtk_signal_new ("leave_notify_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, leave_notify_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[CONFIGURE_EVENT] =
gtk_signal_new ("configure_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, configure_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[FOCUS_IN_EVENT] =
gtk_signal_new ("focus_in_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, focus_in_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[FOCUS_OUT_EVENT] =
gtk_signal_new ("focus_out_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, focus_out_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[MAP_EVENT] =
gtk_signal_new ("map_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, map_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[UNMAP_EVENT] =
gtk_signal_new ("unmap_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, unmap_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[PROPERTY_NOTIFY_EVENT] =
gtk_signal_new ("property_notify_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, property_notify_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[SELECTION_CLEAR_EVENT] =
gtk_signal_new ("selection_clear_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, selection_clear_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[SELECTION_REQUEST_EVENT] =
gtk_signal_new ("selection_request_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, selection_request_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[SELECTION_NOTIFY_EVENT] =
gtk_signal_new ("selection_notify_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, selection_notify_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[SELECTION_RECEIVED] =
gtk_signal_new ("selection_received",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, selection_received),
gtk_widget_marshal_signal_1,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[PROXIMITY_IN_EVENT] =
gtk_signal_new ("proximity_in_event",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, proximity_in_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[PROXIMITY_OUT_EVENT] =
gtk_signal_new ("proximity_out_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, proximity_out_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[DRAG_BEGIN_EVENT] =
gtk_signal_new ("drag_begin_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, drag_begin_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[DRAG_REQUEST_EVENT] =
gtk_signal_new ("drag_request_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, drag_request_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[DROP_ENTER_EVENT] =
gtk_signal_new ("drop_enter_event",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, drop_enter_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[DROP_LEAVE_EVENT] =
gtk_signal_new ("drop_leave_event",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, drop_leave_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[DROP_DATA_AVAILABLE_EVENT] =
gtk_signal_new ("drop_data_available_event",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass,
drop_data_available_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[OTHER_EVENT] =
gtk_signal_new ("other_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, other_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[CLIENT_EVENT] =
gtk_signal_new ("client_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, client_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
widget_signals[VISIBILITY_NOTIFY_EVENT] =
gtk_signal_new ("visibility_notify_event",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkWidgetClass, visibility_notify_event),
gtk_widget_marshal_signal_4,
GTK_TYPE_BOOL, 1,
GTK_TYPE_GDK_EVENT);
gtk_object_class_add_signals (object_class, widget_signals, LAST_SIGNAL);
object_class->destroy = gtk_real_widget_destroy;
klass->activate_signal = 0;
klass->show = gtk_real_widget_show;
klass->hide = gtk_real_widget_hide;
klass->show_all = gtk_real_widget_show;
klass->hide_all = gtk_real_widget_hide;
klass->map = gtk_real_widget_map;
klass->unmap = gtk_real_widget_unmap;
klass->realize = gtk_real_widget_realize;
klass->unrealize = gtk_real_widget_unrealize;
klass->draw = gtk_real_widget_draw;
klass->draw_focus = NULL;
klass->size_request = NULL;
klass->size_allocate = gtk_real_widget_size_allocate;
klass->state_changed = NULL;
klass->install_accelerator = NULL;
klass->remove_accelerator = NULL;
klass->event = NULL;
klass->button_press_event = NULL;
klass->button_release_event = NULL;
klass->motion_notify_event = NULL;
klass->delete_event = NULL;
klass->destroy_event = NULL;
klass->expose_event = NULL;
klass->key_press_event = NULL;
klass->key_release_event = NULL;
klass->enter_notify_event = NULL;
klass->leave_notify_event = NULL;
klass->configure_event = NULL;
klass->focus_in_event = NULL;
klass->focus_out_event = NULL;
klass->map_event = NULL;
klass->unmap_event = NULL;
klass->property_notify_event = gtk_selection_property_notify;
klass->selection_clear_event = gtk_selection_clear;
klass->selection_request_event = gtk_selection_request;
klass->selection_notify_event = gtk_selection_notify;
klass->selection_received = NULL;
klass->proximity_in_event = NULL;
klass->proximity_out_event = NULL;
klass->drag_begin_event = NULL;
klass->drag_request_event = NULL;
klass->drop_enter_event = NULL;
klass->drop_leave_event = NULL;
klass->drop_data_available_event = NULL;
klass->other_event = NULL;
klass->visibility_notify_event = NULL;
}
/*****************************************
* gtk_widget_set_arg:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_widget_set_arg (GtkWidget *widget,
GtkArg *arg,
guint arg_id)
{
switch (arg_id)
{
case ARG_X:
gtk_widget_set_uposition (widget, GTK_VALUE_INT (*arg), -2);
break;
case ARG_Y:
gtk_widget_set_uposition (widget, -2, GTK_VALUE_INT (*arg));
break;
case ARG_WIDTH:
gtk_widget_set_usize (widget, GTK_VALUE_INT (*arg), -1);
break;
case ARG_HEIGHT:
gtk_widget_set_usize (widget, -1, GTK_VALUE_INT (*arg));
break;
case ARG_VISIBLE:
if (GTK_VALUE_BOOL(*arg))
gtk_widget_show (widget);
else
gtk_widget_hide (widget);
break;
case ARG_SENSITIVE:
gtk_widget_set_sensitive (widget, GTK_VALUE_BOOL (*arg));
break;
case ARG_CAN_FOCUS:
if (GTK_VALUE_BOOL (*arg))
GTK_WIDGET_SET_FLAGS (widget, GTK_CAN_FOCUS);
else
GTK_WIDGET_UNSET_FLAGS (widget, GTK_CAN_FOCUS);
break;
case ARG_HAS_FOCUS:
if (GTK_VALUE_BOOL (*arg))
gtk_widget_grab_focus (widget);
break;
case ARG_CAN_DEFAULT:
if (GTK_VALUE_BOOL (*arg))
GTK_WIDGET_SET_FLAGS (widget, GTK_CAN_DEFAULT);
else
GTK_WIDGET_UNSET_FLAGS (widget, GTK_CAN_DEFAULT);
break;
case ARG_HAS_DEFAULT:
if (GTK_VALUE_BOOL (*arg))
gtk_widget_grab_default (widget);
break;
case ARG_EVENTS:
gtk_widget_set_events (widget, GTK_VALUE_FLAGS (*arg));
break;
case ARG_EXTENSION_EVENTS:
gtk_widget_set_extension_events (widget, GTK_VALUE_FLAGS (*arg));
break;
case ARG_NAME:
gtk_widget_set_name (widget, GTK_VALUE_STRING (*arg));
break;
case ARG_STYLE:
gtk_widget_set_style (widget, (GtkStyle*) GTK_VALUE_BOXED (*arg));
break;
case ARG_PARENT:
gtk_container_add (GTK_CONTAINER (GTK_VALUE_OBJECT (*arg)), widget);
break;
}
}
/*****************************************
* gtk_widget_set_arg:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_widget_get_arg (GtkWidget *widget,
GtkArg *arg,
guint arg_id)
{
GtkWidgetAuxInfo *aux_info;
gint *eventp;
GdkExtensionMode *modep;
switch (arg_id)
{
case ARG_X:
aux_info = gtk_object_get_data (GTK_OBJECT (widget), aux_info_key);
if (!aux_info)
GTK_VALUE_INT (*arg) = -2;
else
GTK_VALUE_INT (*arg) = aux_info->x;
break;
case ARG_Y:
aux_info = gtk_object_get_data (GTK_OBJECT (widget), aux_info_key);
if (!aux_info)
GTK_VALUE_INT (*arg) = -2;
else
GTK_VALUE_INT (*arg) = aux_info->y;
break;
case ARG_WIDTH:
aux_info = gtk_object_get_data (GTK_OBJECT (widget), aux_info_key);
if (!aux_info)
GTK_VALUE_INT (*arg) = -2;
else
GTK_VALUE_INT (*arg) = aux_info->width;
break;
case ARG_HEIGHT:
aux_info = gtk_object_get_data (GTK_OBJECT (widget), aux_info_key);
if (!aux_info)
GTK_VALUE_INT (*arg) = -2;
else
GTK_VALUE_INT (*arg) = aux_info->height;
break;
case ARG_VISIBLE:
GTK_VALUE_BOOL (*arg) = GTK_WIDGET_VISIBLE (widget);
break;
case ARG_SENSITIVE:
GTK_VALUE_BOOL (*arg) = GTK_WIDGET_SENSITIVE (widget);
break;
case ARG_CAN_FOCUS:
GTK_VALUE_BOOL (*arg) = GTK_WIDGET_CAN_FOCUS (widget);
break;
case ARG_HAS_FOCUS:
GTK_VALUE_BOOL (*arg) = GTK_WIDGET_HAS_FOCUS (widget);
break;
case ARG_CAN_DEFAULT:
GTK_VALUE_BOOL (*arg) = GTK_WIDGET_CAN_DEFAULT (widget);
break;
case ARG_HAS_DEFAULT:
GTK_VALUE_BOOL (*arg) = GTK_WIDGET_HAS_DEFAULT (widget);
break;
case ARG_EVENTS:
eventp = gtk_object_get_data (GTK_OBJECT (widget), event_key);
if (!eventp)
GTK_VALUE_FLAGS (*arg) = 0;
else
GTK_VALUE_FLAGS (*arg) = *eventp;
break;
case ARG_EXTENSION_EVENTS:
modep = gtk_object_get_data (GTK_OBJECT (widget), extension_event_key);
if (!modep)
GTK_VALUE_FLAGS (*arg) = 0;
else
GTK_VALUE_FLAGS (*arg) = *modep;
break;
case ARG_NAME:
if (widget->name)
GTK_VALUE_STRING (*arg) = g_strdup (widget->name);
else
GTK_VALUE_STRING (*arg) = g_strdup ("");
break;
case ARG_STYLE:
GTK_VALUE_BOXED (*arg) = (gpointer) gtk_widget_get_style (widget);
break;
case ARG_PARENT:
GTK_VALUE_OBJECT (*arg) = (GtkObject*) widget->parent;
break;
default:
arg->type = GTK_TYPE_INVALID;
}
}
/*****************************************
* gtk_widget_init:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_widget_init (GtkWidget *widget)
{
GdkColormap *colormap;
GdkVisual *visual;
GTK_OBJECT_FLAGS (widget) = GTK_SENSITIVE | GTK_PARENT_SENSITIVE;
widget->state = GTK_STATE_NORMAL;
widget->saved_state = GTK_STATE_NORMAL;
widget->name = NULL;
widget->requisition.width = 0;
widget->requisition.height = 0;
widget->allocation.x = -1;
widget->allocation.y = -1;
widget->allocation.width = 1;
widget->allocation.height = 1;
widget->window = NULL;
widget->parent = NULL;
widget->style = gtk_widget_peek_style ();
gtk_style_ref (widget->style);
colormap = gtk_widget_peek_colormap ();
visual = gtk_widget_peek_visual ();
/* XXX - should we ref the colormap and visual, too? */
if (colormap != gtk_widget_get_default_colormap ())
{
/* gdk_colormap_ref (colormap); */
gtk_object_set_data (GTK_OBJECT (widget), colormap_key, colormap);
}
if (visual != gtk_widget_get_default_visual ())
{
/* gdk_visual_ref (visual); */
gtk_object_set_data (GTK_OBJECT (widget), visual_key, visual);
}
}
/*****************************************
* gtk_widget_new:
*
* arguments:
*
* results:
*****************************************/
GtkWidget*
gtk_widget_new (guint type,
...)
{
GtkObject *obj;
GtkArg *args;
guint nargs;
va_list args1;
va_list args2;
g_return_val_if_fail (gtk_type_is_a (type, gtk_widget_get_type ()), NULL);
obj = gtk_type_new (type);
va_start (args1, type);
va_start (args2, type);
args = gtk_object_collect_args (&nargs, args1, args2);
gtk_object_setv (obj, nargs, args);
g_free (args);
va_end (args1);
va_end (args2);
return GTK_WIDGET (obj);
}
/*****************************************
* gtk_widget_newv:
*
* arguments:
*
* results:
*****************************************/
GtkWidget*
gtk_widget_newv (guint type,
guint nargs,
GtkArg *args)
{
g_return_val_if_fail (gtk_type_is_a (type, gtk_widget_get_type ()), NULL);
return GTK_WIDGET (gtk_object_newv (type, nargs, args));
}
/*****************************************
* gtk_widget_get:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_get (GtkWidget *widget,
GtkArg *arg)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (arg != NULL);
gtk_object_getv (GTK_OBJECT (widget), 1, arg);
}
/*****************************************
* gtk_widget_getv:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_getv (GtkWidget *widget,
guint nargs,
GtkArg *args)
{
gtk_object_getv (GTK_OBJECT (widget), nargs, args);
}
/*****************************************
* gtk_widget_set:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_set (GtkWidget *widget,
...)
{
GtkArg *args;
guint nargs;
va_list args1;
va_list args2;
g_return_if_fail (widget != NULL);
va_start (args1, widget);
va_start (args2, widget);
args = gtk_object_collect_args (&nargs, args1, args2);
gtk_object_setv (GTK_OBJECT (widget), nargs, args);
g_free (args);
va_end (args1);
va_end (args2);
}
/*****************************************
* gtk_widget_setv:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_setv (GtkWidget *widget,
guint nargs,
GtkArg *args)
{
gtk_object_setv (GTK_OBJECT (widget), nargs, args);
}
/*****************************************
* gtk_widget_destroy:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_destroy (GtkWidget *widget)
{
GSList *resize_widgets;
GSList *tmp_list;
gint tag;
g_return_if_fail (widget != NULL);
if (GTK_WIDGET_REDRAW_PENDING (widget))
{
GTK_WIDGET_UNSET_FLAGS (widget, GTK_REDRAW_PENDING);
gtk_object_unref (GTK_OBJECT (widget));
tag = (gint) gtk_object_get_data (GTK_OBJECT (widget), redraw_handler_key);
gtk_idle_remove (tag);
gtk_object_remove_data (GTK_OBJECT (widget), redraw_handler_key);
}
if (GTK_WIDGET_ANCHORED (widget) &&
GTK_WIDGET_RESIZE_PENDING (widget))
{
GTK_WIDGET_UNSET_FLAGS (widget, GTK_RESIZE_PENDING);
gtk_object_unref (GTK_OBJECT (widget));
tag = (gint) gtk_object_get_data (GTK_OBJECT (widget), resize_handler_key);
gtk_idle_remove (tag);
gtk_object_remove_data (GTK_OBJECT (widget), resize_handler_key);
resize_widgets = gtk_object_get_data (GTK_OBJECT (widget), resize_widgets_key);
tmp_list = resize_widgets;
while (tmp_list)
{
GtkWidget *child;
child = tmp_list->data;
tmp_list = tmp_list->next;
/* referencing needed? */
GTK_WIDGET_UNSET_FLAGS (child, GTK_RESIZE_NEEDED);
gtk_object_unref (GTK_OBJECT (child));
}
if (resize_widgets)
{
gtk_object_set_data (GTK_OBJECT (widget), resize_widgets_key, NULL);
g_slist_free (resize_widgets);
}
}
if (GTK_WIDGET_RESIZE_NEEDED (widget))
{
GtkWidget *toplevel;
toplevel = gtk_widget_get_toplevel (widget);
resize_widgets = gtk_object_get_data (GTK_OBJECT (toplevel), resize_widgets_key);
if (resize_widgets)
{
resize_widgets = g_slist_remove (resize_widgets, widget);
GTK_WIDGET_UNSET_FLAGS (widget, GTK_RESIZE_NEEDED);
gtk_object_unref (GTK_OBJECT (widget));
gtk_object_set_data (GTK_OBJECT (toplevel), resize_widgets_key, resize_widgets);
}
}
if (widget->parent)
{
if (!GTK_OBJECT_BEING_DESTROYED (widget->parent))
gtk_container_remove (GTK_CONTAINER (widget->parent), widget);
else
gtk_object_unref (GTK_OBJECT (widget));
}
gtk_object_destroy (GTK_OBJECT (widget));
}
/*****************************************
* gtk_widget_unparent: do any cleanup necessary necessary before
* setting parent = NULL. In particular, remove
* the focus properly.
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_unparent (GtkWidget *widget)
{
GtkWidget *toplevel;
GtkWidget *child;
g_return_if_fail (widget != NULL);
toplevel = gtk_widget_get_toplevel (widget);
if (GTK_IS_WINDOW (toplevel))
{
child = GTK_WINDOW (toplevel)->focus_widget;
while (child && child != widget)
child = child->parent;
if (child == widget)
gtk_window_set_focus (GTK_WINDOW (toplevel), NULL);
}
if (widget->window &&
GTK_WIDGET_NO_WINDOW (widget) &&
GTK_WIDGET_DRAWABLE (widget))
gdk_window_clear_area (widget->window,
widget->allocation.x,
widget->allocation.y,
widget->allocation.width,
widget->allocation.height);
widget->parent = NULL;
gtk_object_unref (GTK_OBJECT (widget));
}
/*****************************************
* gtk_widget_show:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_show (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
if (!GTK_WIDGET_VISIBLE (widget))
gtk_signal_emit (GTK_OBJECT (widget), widget_signals[SHOW]);
}
/*****************************************
* gtk_widget_hide:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_hide (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
if (GTK_WIDGET_VISIBLE (widget))
gtk_signal_emit (GTK_OBJECT (widget), widget_signals[HIDE]);
}
/*****************************************
* gtk_widget_show_all:
*
* Shows the widget and all children.
*
* Container classes overwrite
* show_all and hide_all to call
* show_all (hide_all) on both themselves
* and on their child widgets.
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_show_all (GtkWidget *widget)
{
GtkWidgetClass *widget_class;
g_return_if_fail (widget != NULL);
/* show_all shouldn't be invoked through a signal,
because in this case it would be quite slow - there would
be a show and show_all signal emitted for every child widget.
*/
widget_class = GTK_WIDGET_CLASS(GTK_OBJECT(widget)->klass);
widget_class->show_all (widget);
}
/*****************************************
* gtk_widget_hide_all:
*
* Hides the widget and all children.
* See gtk_widget_show_all.
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_hide_all (GtkWidget *widget)
{
GtkWidgetClass *widget_class;
g_return_if_fail (widget != NULL);
widget_class = GTK_WIDGET_CLASS(GTK_OBJECT(widget)->klass);
widget_class->hide_all (widget);
}
/*****************************************
* gtk_widget_map:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_map (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
if (!GTK_WIDGET_MAPPED (widget))
{
if (!GTK_WIDGET_REALIZED (widget))
gtk_widget_realize (widget);
gtk_signal_emit (GTK_OBJECT (widget), widget_signals[MAP]);
}
}
/*****************************************
* gtk_widget_unmap:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_unmap (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
if (GTK_WIDGET_MAPPED (widget))
gtk_signal_emit (GTK_OBJECT (widget), widget_signals[UNMAP]);
}
/*****************************************
* gtk_widget_realize:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_realize (GtkWidget *widget)
{
GtkStyle *new_style;
gint events;
GdkExtensionMode mode;
GtkWidgetShapeInfo *shape_info;
g_return_if_fail (widget != NULL);
if (!GTK_WIDGET_REALIZED (widget))
{
/*
if (GTK_IS_CONTAINER (widget) && !GTK_WIDGET_NO_WINDOW (widget))
g_print ("%s\n", gtk_type_name (GTK_WIDGET_TYPE (widget)));
*/
if (widget->parent && !GTK_WIDGET_REALIZED (widget->parent))
gtk_widget_realize (widget->parent);
if (!GTK_WIDGET_USER_STYLE (widget))
{
new_style = gtk_rc_get_style (widget);
if (new_style != widget->style)
gtk_widget_set_style_internal (widget, new_style);
}
gtk_signal_emit (GTK_OBJECT (widget), widget_signals[REALIZE]);
if (GTK_WIDGET_HAS_SHAPE_MASK(widget))
{
shape_info = gtk_object_get_data (GTK_OBJECT (widget),
shape_info_key);
g_assert (shape_info != 0);
gdk_window_shape_combine_mask (widget->window,
shape_info->shape_mask,
shape_info->offset_x,
shape_info->offset_y);
}
if (!GTK_WIDGET_NO_WINDOW (widget))
{
mode = gtk_widget_get_extension_events (widget);
if (mode != GDK_EXTENSION_EVENTS_NONE)
{
events = gtk_widget_get_events (widget);
gdk_input_set_extension_events (widget->window, events, mode);
}
}
}
}
/*****************************************
* gtk_widget_unrealize:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_unrealize (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
if (GTK_WIDGET_REALIZED (widget))
gtk_signal_emit (GTK_OBJECT (widget), widget_signals[UNREALIZE]);
}
/*****************************************
* gtk_widget_queue_draw:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_queue_draw (GtkWidget *widget)
{
GtkWidget *parent;
gint tag;
g_return_if_fail (widget != NULL);
if (GTK_WIDGET_DRAWABLE (widget))
{
/* We queue the redraw if:
* a) the widget is not already queued for redraw and
* b) non of the widgets ancestors are queued for redraw.
*/
parent = widget;
while (parent)
{
if (GTK_WIDGET_REDRAW_PENDING (parent))
return;
parent = parent->parent;
}
GTK_WIDGET_SET_FLAGS (widget, GTK_REDRAW_PENDING);
gtk_object_ref (GTK_OBJECT (widget));
tag = gtk_idle_add ((GtkFunction) gtk_real_widget_queue_draw, widget);
gtk_object_set_data (GTK_OBJECT (widget), redraw_handler_key, (gpointer) tag);
}
}
/*****************************************
* gtk_widget_queue_resize:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_queue_resize (GtkWidget *widget)
{
GtkWidget *toplevel;
GSList *resize_widgets;
gint tag;
g_return_if_fail (widget != NULL);
toplevel = gtk_widget_get_toplevel (widget);
if (GTK_WIDGET_ANCHORED (toplevel))
{
if (GTK_WIDGET_VISIBLE (toplevel))
{
if (!GTK_WIDGET_RESIZE_PENDING (toplevel))
{
GTK_WIDGET_SET_FLAGS (toplevel, GTK_RESIZE_PENDING);
gtk_object_ref (GTK_OBJECT (toplevel));
tag = gtk_idle_add ((GtkFunction) gtk_real_widget_queue_resize, toplevel);
gtk_object_set_data (GTK_OBJECT (toplevel), resize_handler_key, (gpointer) tag);
}
resize_widgets = gtk_object_get_data (GTK_OBJECT (toplevel), resize_widgets_key);
if (g_slist_find (resize_widgets, widget) == NULL)
{
/* referencing needed? */
GTK_WIDGET_SET_FLAGS (widget, GTK_RESIZE_NEEDED);
gtk_object_ref (GTK_OBJECT (widget));
resize_widgets = g_slist_prepend (resize_widgets, widget);
gtk_object_set_data (GTK_OBJECT (toplevel), resize_widgets_key, resize_widgets);
}
}
else
{
gtk_container_need_resize (GTK_CONTAINER (toplevel));
}
}
}
/*****************************************
* gtk_widget_draw:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_draw (GtkWidget *widget,
GdkRectangle *area)
{
GdkRectangle temp_area;
g_return_if_fail (widget != NULL);
if (GTK_WIDGET_DRAWABLE (widget) &&
!GTK_WIDGET_REDRAW_PENDING (widget))
{
if (!area)
{
if (GTK_WIDGET_NO_WINDOW (widget))
{
temp_area.x = widget->allocation.x;
temp_area.y = widget->allocation.y;
}
else
{
temp_area.x = 0;
temp_area.y = 0;
}
temp_area.width = widget->allocation.width;
temp_area.height = widget->allocation.height;
area = &temp_area;
}
gtk_signal_emit (GTK_OBJECT (widget), widget_signals[DRAW], area);
}
}
/*****************************************
* gtk_widget_draw_focus:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_draw_focus (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
gtk_signal_emit (GTK_OBJECT (widget), widget_signals[DRAW_FOCUS]);
}
/*****************************************
* gtk_widget_draw_default:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_draw_default (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
gtk_signal_emit (GTK_OBJECT (widget), widget_signals[DRAW_DEFAULT]);
}
/*****************************************
* gtk_widget_draw_children:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_draw_children (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
if (GTK_IS_CONTAINER (widget))
gtk_container_foreach (GTK_CONTAINER (widget),
gtk_widget_draw_children_recurse,
NULL);
}
/*****************************************
* gtk_widget_size_request:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkWidgetAuxInfo *aux_info;
g_return_if_fail (widget != NULL);
if (gtk_signal_emit (GTK_OBJECT (widget), widget_signals[SIZE_REQUEST], requisition))
{
aux_info = gtk_object_get_data (GTK_OBJECT (widget), aux_info_key);
if (aux_info)
{
if (aux_info->width > 0)
requisition->width = aux_info->width;
if (aux_info->height > 0)
requisition->height = aux_info->height;
}
}
}
/*****************************************
* gtk_widget_size_allocate:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkWidgetAuxInfo *aux_info;
GtkAllocation real_allocation;
g_return_if_fail (widget != NULL);
real_allocation = *allocation;
aux_info = gtk_object_get_data (GTK_OBJECT (widget), aux_info_key);
if (aux_info)
{
if (aux_info->x != -1)
real_allocation.x = aux_info->x;
if (aux_info->y != -1)
real_allocation.y = aux_info->y;
}
gtk_signal_emit (GTK_OBJECT (widget), widget_signals[SIZE_ALLOCATE], &real_allocation);
}
/*****************************************
* gtk_widget_install_accelerator:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_install_accelerator (GtkWidget *widget,
GtkAcceleratorTable *table,
const gchar *signal_name,
gchar key,
guint8 modifiers)
{
gint return_val;
g_return_if_fail (widget != NULL);
return_val = TRUE;
if (gtk_signal_emit (GTK_OBJECT (widget), widget_signals[INSTALL_ACCELERATOR],
signal_name, key, modifiers, &return_val) && return_val)
gtk_accelerator_table_install (table, GTK_OBJECT (widget), signal_name, key, modifiers);
}
/*****************************************
* gtk_widget_remove_accelerator:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_remove_accelerator (GtkWidget *widget,
GtkAcceleratorTable *table,
const gchar *signal_name)
{
g_return_if_fail (widget != NULL);
if (gtk_signal_emit (GTK_OBJECT (widget), widget_signals[REMOVE_ACCELERATOR], signal_name))
gtk_accelerator_table_remove (table, GTK_OBJECT (widget), signal_name);
}
/*****************************************
* gtk_widget_event:
*
* arguments:
*
* results:
*****************************************/
gint
gtk_widget_event (GtkWidget *widget,
GdkEvent *event)
{
gint return_val;
gint signal_num;
g_return_val_if_fail (widget != NULL, FALSE);
return_val = FALSE;
if (gtk_signal_emit (GTK_OBJECT (widget), widget_signals[EVENT], event, &return_val))
{
if (return_val)
return TRUE;
switch (event->type)
{
case GDK_NOTHING:
signal_num = -1;
break;
case GDK_BUTTON_PRESS:
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
signal_num = BUTTON_PRESS_EVENT;
break;
case GDK_BUTTON_RELEASE:
signal_num = BUTTON_RELEASE_EVENT;
break;
case GDK_MOTION_NOTIFY:
signal_num = MOTION_NOTIFY_EVENT;
break;
case GDK_DELETE:
signal_num = DELETE_EVENT;
break;
case GDK_DESTROY:
signal_num = DESTROY_EVENT;
break;
case GDK_EXPOSE:
signal_num = EXPOSE_EVENT;
break;
case GDK_KEY_PRESS:
signal_num = KEY_PRESS_EVENT;
break;
case GDK_KEY_RELEASE:
signal_num = KEY_RELEASE_EVENT;
break;
case GDK_ENTER_NOTIFY:
signal_num = ENTER_NOTIFY_EVENT;
break;
case GDK_LEAVE_NOTIFY:
signal_num = LEAVE_NOTIFY_EVENT;
break;
case GDK_FOCUS_CHANGE:
if (event->focus_change.in)
signal_num = FOCUS_IN_EVENT;
else
signal_num = FOCUS_OUT_EVENT;
break;
case GDK_CONFIGURE:
signal_num = CONFIGURE_EVENT;
break;
case GDK_MAP:
signal_num = MAP_EVENT;
break;
case GDK_UNMAP:
signal_num = UNMAP_EVENT;
break;
case GDK_PROPERTY_NOTIFY:
signal_num = PROPERTY_NOTIFY_EVENT;
break;
case GDK_SELECTION_CLEAR:
signal_num = SELECTION_CLEAR_EVENT;
break;
case GDK_SELECTION_REQUEST:
signal_num = SELECTION_REQUEST_EVENT;
break;
case GDK_SELECTION_NOTIFY:
signal_num = SELECTION_NOTIFY_EVENT;
break;
case GDK_PROXIMITY_IN:
signal_num = PROXIMITY_IN_EVENT;
break;
case GDK_PROXIMITY_OUT:
signal_num = PROXIMITY_OUT_EVENT;
break;
case GDK_DRAG_BEGIN:
signal_num = DRAG_BEGIN_EVENT;
break;
case GDK_DRAG_REQUEST:
signal_num = DRAG_REQUEST_EVENT;
break;
case GDK_DROP_ENTER:
signal_num = DROP_ENTER_EVENT;
break;
case GDK_DROP_LEAVE:
signal_num = DROP_LEAVE_EVENT;
break;
case GDK_DROP_DATA_AVAIL:
signal_num = DROP_DATA_AVAILABLE_EVENT;
break;
case GDK_OTHER_EVENT:
signal_num = OTHER_EVENT;
break;
case GDK_VISIBILITY_NOTIFY:
signal_num = VISIBILITY_NOTIFY_EVENT;
break;
case GDK_CLIENT_EVENT:
signal_num = CLIENT_EVENT;
break;
default:
g_warning ("could not determine signal number for event: %d", event->type);
return return_val;
}
if (signal_num != -1)
gtk_signal_emit (GTK_OBJECT (widget), widget_signals[signal_num], event, &return_val);
}
return return_val;
}
/*****************************************
* gtk_widget_activate:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_activate (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_WIDGET (widget));
if (WIDGET_CLASS (widget)->activate_signal)
gtk_signal_emit (GTK_OBJECT (widget), WIDGET_CLASS (widget)->activate_signal);
}
/*****************************************
* gtk_widget_reparent:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_widget_reparent_container_child(GtkWidget *widget,
gpointer client_data)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (client_data != NULL);
if (!GTK_WIDGET_NO_WINDOW (widget))
gdk_window_reparent (widget->window,
(GdkWindow *)client_data, 0, 0);
else if (GTK_IS_CONTAINER (widget))
gtk_container_foreach (GTK_CONTAINER (widget),
gtk_widget_reparent_container_child,
client_data);
else
widget->window = (GdkWindow *)client_data;
}
void
gtk_widget_reparent (GtkWidget *widget,
GtkWidget *new_parent)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (new_parent != NULL);
g_return_if_fail (GTK_IS_CONTAINER (new_parent));
if (widget->parent != new_parent)
{
gtk_object_ref (GTK_OBJECT (widget));
gtk_container_remove (GTK_CONTAINER (widget->parent), widget);
gtk_container_add (GTK_CONTAINER (new_parent), widget);
gtk_object_unref (GTK_OBJECT (widget));
if (GTK_WIDGET_REALIZED (widget))
{
if (GTK_WIDGET_REALIZED (new_parent))
{
if (GTK_WIDGET_NO_WINDOW (widget))
{
if (GTK_IS_CONTAINER (widget))
gtk_container_foreach (GTK_CONTAINER(widget),
gtk_widget_reparent_container_child,
gtk_widget_get_parent_window (widget));
else
widget->window = gtk_widget_get_parent_window (widget);
}
else
gdk_window_reparent (widget->window, gtk_widget_get_parent_window (widget), 0, 0);
}
else
gtk_widget_unrealize (widget);
}
if (!GTK_WIDGET_REALIZED (widget) && GTK_WIDGET_REALIZED (new_parent))
gtk_widget_realize (widget);
if (GTK_WIDGET_VISIBLE (widget) &&
!GTK_WIDGET_MAPPED (widget) && GTK_WIDGET_MAPPED (new_parent))
gtk_widget_map (widget);
gtk_widget_queue_resize (widget);
}
}
/*****************************************
* gtk_widget_popup:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_popup (GtkWidget *widget,
gint x,
gint y)
{
g_return_if_fail (widget != NULL);
if (!GTK_WIDGET_VISIBLE (widget))
{
if (!GTK_WIDGET_REALIZED (widget))
gtk_widget_realize (widget);
if (!GTK_WIDGET_NO_WINDOW (widget))
gdk_window_move (widget->window, x, y);
gtk_widget_show (widget);
}
}
/*****************************************
* gtk_widget_intersect:
*
* arguments:
*
* results:
*****************************************/
gint
gtk_widget_intersect (GtkWidget *widget,
GdkRectangle *area,
GdkRectangle *intersection)
{
GdkRectangle *dest;
GdkRectangle tmp;
gint return_val;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (area != NULL, FALSE);
if (intersection)
dest = intersection;
else
dest = &tmp;
return_val = gdk_rectangle_intersect ((GdkRectangle*) &widget->allocation, area, dest);
if (return_val && intersection && !GTK_WIDGET_NO_WINDOW (widget))
{
intersection->x -= widget->allocation.x;
intersection->y -= widget->allocation.y;
}
return return_val;
}
gint
gtk_widget_basic (GtkWidget *widget)
{
GList *children;
GList *tmp_list;
gint return_val;
g_return_val_if_fail (widget != NULL, FALSE);
if (!GTK_WIDGET_BASIC (widget))
return FALSE;
else if (GTK_IS_CONTAINER (widget))
{
children = gtk_container_children (GTK_CONTAINER (widget));
if (children)
{
return_val = TRUE;
tmp_list = children;
while (tmp_list)
{
if (!gtk_widget_basic (GTK_WIDGET (tmp_list->data)))
{
return_val = FALSE;
break;
}
tmp_list = tmp_list->next;
}
g_list_free (children);
return return_val;
}
}
return TRUE;
}
/*****************************************
* gtk_widget_grab_focus:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_grab_focus (GtkWidget *widget)
{
GtkWidget *window;
GtkWidget *child;
gint window_type;
g_return_if_fail (widget != NULL);
window_type = gtk_window_get_type ();
window = widget->parent;
child = widget;
while (window && !gtk_type_is_a (GTK_WIDGET_TYPE (window), window_type))
{
GTK_CONTAINER (window)->focus_child = child;
child = window;
window = window->parent;
}
if (window && gtk_type_is_a (GTK_WIDGET_TYPE (window), window_type))
{
GTK_CONTAINER (window)->focus_child = child;
gtk_window_set_focus (GTK_WINDOW (window), widget);
}
}
/*****************************************
* gtk_widget_grab_default:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_grab_default (GtkWidget *widget)
{
GtkWidget *window;
gint window_type;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_WIDGET_CAN_DEFAULT (widget));
window_type = gtk_window_get_type ();
window = widget->parent;
while (window && !gtk_type_is_a (GTK_WIDGET_TYPE (window), window_type))
window = window->parent;
if (window && gtk_type_is_a (GTK_WIDGET_TYPE (window), window_type))
gtk_window_set_default (GTK_WINDOW (window), widget);
}
/*****************************************
* gtk_widget_restore_state:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_restore_state (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
widget->state = widget->saved_state;
if (gtk_signal_emit (GTK_OBJECT (widget), widget_signals[STATE_CHANGED]))
{
if (GTK_IS_CONTAINER (widget))
gtk_container_foreach (GTK_CONTAINER (widget),
gtk_widget_propagate_restore,
NULL);
}
}
/*****************************************
* gtk_widget_set_name:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_set_name (GtkWidget *widget,
const gchar *name)
{
GtkStyle *new_style;
g_return_if_fail (widget != NULL);
if (widget->name)
g_free (widget->name);
widget->name = g_strdup (name);
if (!GTK_WIDGET_USER_STYLE (widget))
{
new_style = gtk_rc_get_style (widget);
gtk_widget_set_style_internal (widget, new_style);
}
}
/*****************************************
* gtk_widget_get_name:
*
* arguments:
*
* results:
*****************************************/
gchar*
gtk_widget_get_name (GtkWidget *widget)
{
g_return_val_if_fail (widget != NULL, NULL);
if (widget->name)
return widget->name;
return gtk_type_name (GTK_WIDGET_TYPE (widget));
}
/*****************************************
* gtk_widget_set_state:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_set_state (GtkWidget *widget,
GtkStateType state)
{
g_return_if_fail (widget != NULL);
if (widget->state != state)
{
widget->saved_state = widget->state;
widget->state = state;
if (!gtk_signal_emit (GTK_OBJECT (widget), widget_signals[STATE_CHANGED]))
return;
}
if (GTK_IS_CONTAINER (widget))
gtk_container_foreach (GTK_CONTAINER (widget),
gtk_widget_propagate_state,
(gpointer) &state);
}
/*****************************************
* gtk_widget_set_sensitive:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_set_sensitive (GtkWidget *widget,
gint sensitive)
{
GtkWidget *window;
gint old_val;
g_return_if_fail (widget != NULL);
old_val = GTK_WIDGET_IS_SENSITIVE (widget);
if (sensitive)
{
GTK_WIDGET_SET_FLAGS (widget, GTK_SENSITIVE);
}
else
{
GTK_WIDGET_UNSET_FLAGS (widget, GTK_SENSITIVE);
if (GTK_WIDGET_HAS_FOCUS (widget))
{
window = gtk_widget_get_ancestor (widget, gtk_window_get_type ());
if (window)
gtk_window_set_focus (GTK_WINDOW (window), NULL);
}
}
if (GTK_IS_CONTAINER (widget))
gtk_container_foreach (GTK_CONTAINER (widget),
gtk_widget_set_parent_sensitive,
&sensitive);
if (old_val != GTK_WIDGET_IS_SENSITIVE (widget))
gtk_widget_queue_draw (widget);
}
/*****************************************
* gtk_widget_set_parent:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_set_parent (GtkWidget *widget,
GtkWidget *parent)
{
GtkStyle *style;
gint sensitive;
g_return_if_fail (widget != NULL);
g_return_if_fail (parent != NULL);
gtk_object_ref (GTK_OBJECT (widget));
widget->parent = parent;
sensitive = GTK_WIDGET_IS_SENSITIVE (parent);
gtk_widget_set_parent_sensitive (widget, &sensitive);
if ((widget->parent->state != GTK_STATE_NORMAL) &&
(widget->parent->state != widget->state))
gtk_widget_set_state (widget, widget->parent->state);
while (parent->parent != NULL)
parent = parent->parent;
if (GTK_WIDGET_ANCHORED (parent))
{
if (!GTK_WIDGET_USER_STYLE (widget))
{
style = gtk_rc_get_style (widget);
if (style != widget->style)
gtk_widget_set_style_internal (widget, style);
}
if (GTK_IS_CONTAINER (widget))
gtk_container_foreach (GTK_CONTAINER (widget),
gtk_widget_set_style_recurse,
NULL);
}
}
/*************************************************************
* gtk_widget_set_parent_window:
* Set a non default parent window for widget
*
* arguments:
* widget:
* parent_window
*
* results:
*************************************************************/
void
gtk_widget_set_parent_window (GtkWidget *widget,
GdkWindow *parent_window)
{
GdkWindow *old_parent_window;
g_return_if_fail (widget != NULL);
old_parent_window = gtk_object_get_data (GTK_OBJECT (widget),
parent_window_key);
if (parent_window != old_parent_window)
{
gtk_object_set_data (GTK_OBJECT (widget), parent_window_key,
parent_window);
if (old_parent_window)
gdk_window_unref (old_parent_window);
if (parent_window)
gdk_window_ref (parent_window);
}
}
/*************************************************************
* gtk_widget_get_parent_window:
* Get widget's parent window
*
* arguments:
* widget:
*
* results:
* parent window
*************************************************************/
GdkWindow *
gtk_widget_get_parent_window (GtkWidget *widget)
{
GdkWindow *parent_window;
g_return_val_if_fail (widget != NULL, NULL);
parent_window = gtk_object_get_data (GTK_OBJECT (widget),
parent_window_key);
return (parent_window != NULL) ? parent_window : widget->parent->window;
}
/*****************************************
* gtk_widget_set_style:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_set_style (GtkWidget *widget,
GtkStyle *style)
{
g_return_if_fail (widget != NULL);
GTK_WIDGET_SET_FLAGS (widget, GTK_USER_STYLE);
gtk_widget_set_style_internal (widget, style);
}
/*****************************************
* gtk_widget_set_uposition:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_set_uposition (GtkWidget *widget,
gint x,
gint y)
{
GtkWidgetAuxInfo *aux_info;
g_return_if_fail (widget != NULL);
aux_info = gtk_object_get_data (GTK_OBJECT (widget), aux_info_key);
if (!aux_info)
{
aux_info = gtk_widget_aux_info_new ();
gtk_object_set_data (GTK_OBJECT (widget), aux_info_key, aux_info);
}
if (x > -2)
aux_info->x = x;
if (y > -2)
aux_info->y = y;
if (GTK_WIDGET_REALIZED (widget) && GTK_IS_WINDOW (widget) &&
(aux_info->x != -1) && (aux_info->y != -1))
{
gdk_window_set_hints (widget->window, aux_info->x, aux_info->y, 0, 0, 0, 0, GDK_HINT_POS);
gdk_window_move (widget->window, aux_info->x, aux_info->y);
}
if (GTK_WIDGET_VISIBLE (widget) && widget->parent)
gtk_widget_size_allocate (widget, &widget->allocation);
}
/*****************************************
* gtk_widget_set_usize:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_set_usize (GtkWidget *widget,
gint width,
gint height)
{
GtkWidgetAuxInfo *aux_info;
g_return_if_fail (widget != NULL);
aux_info = gtk_object_get_data (GTK_OBJECT (widget), aux_info_key);
if (!aux_info)
{
aux_info = gtk_widget_aux_info_new ();
gtk_object_set_data (GTK_OBJECT (widget), aux_info_key, aux_info);
}
if (width > -1)
aux_info->width = width;
if (height > -1)
aux_info->height = height;
if (GTK_WIDGET_VISIBLE (widget))
gtk_widget_queue_resize (widget);
}
/*****************************************
* gtk_widget_set_events:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_set_events (GtkWidget *widget,
gint events)
{
gint *eventp;
g_return_if_fail (widget != NULL);
g_return_if_fail (!GTK_WIDGET_NO_WINDOW (widget));
g_return_if_fail (!GTK_WIDGET_REALIZED (widget));
eventp = gtk_object_get_data (GTK_OBJECT (widget), event_key);
if (events)
{
if (!eventp)
eventp = g_new (gint, 1);
*eventp = events;
gtk_object_set_data (GTK_OBJECT (widget), event_key, eventp);
}
else
{
if (eventp)
g_free (eventp);
gtk_object_remove_data (GTK_OBJECT (widget), event_key);
}
}
/*****************************************
* gtk_widget_set_extension_events:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_set_extension_events (GtkWidget *widget,
GdkExtensionMode mode)
{
GdkExtensionMode *modep;
g_return_if_fail (widget != NULL);
modep = gtk_object_get_data (GTK_OBJECT (widget), extension_event_key);
if (!modep)
modep = g_new (GdkExtensionMode, 1);
*modep = mode;
gtk_object_set_data (GTK_OBJECT (widget), extension_event_key, modep);
}
/*****************************************
* gtk_widget_get_toplevel:
*
* arguments:
*
* results:
*****************************************/
GtkWidget*
gtk_widget_get_toplevel (GtkWidget *widget)
{
g_return_val_if_fail (widget != NULL, NULL);
while (widget->parent)
widget = widget->parent;
return widget;
}
/*****************************************
* gtk_widget_get_ancestor:
*
* arguments:
*
* results:
*****************************************/
GtkWidget*
gtk_widget_get_ancestor (GtkWidget *widget,
gint type)
{
g_return_val_if_fail (widget != NULL, NULL);
while (widget && !gtk_type_is_a (GTK_WIDGET_TYPE (widget), type))
widget = widget->parent;
if (!(widget && gtk_type_is_a (GTK_WIDGET_TYPE (widget), type)))
return NULL;
return widget;
}
/*****************************************
* gtk_widget_get_colormap:
*
* arguments:
*
* results:
*****************************************/
GdkColormap*
gtk_widget_get_colormap (GtkWidget *widget)
{
GdkColormap *colormap;
g_return_val_if_fail (widget != NULL, NULL);
if (!widget->window)
{
colormap = gtk_object_get_data (GTK_OBJECT (widget), colormap_key);
if (colormap)
return colormap;
return gtk_widget_get_default_colormap ();
}
return gdk_window_get_colormap (widget->window);
}
/*****************************************
* gtk_widget_get_visual:
*
* arguments:
*
* results:
*****************************************/
GdkVisual*
gtk_widget_get_visual (GtkWidget *widget)
{
GdkVisual *visual;
g_return_val_if_fail (widget != NULL, NULL);
if (!widget->window)
{
visual = gtk_object_get_data (GTK_OBJECT (widget), visual_key);
if (visual)
return visual;
return gtk_widget_get_default_visual ();
}
return gdk_window_get_visual (widget->window);
}
/*****************************************
* gtk_widget_get_style:
*
* arguments:
*
* results:
*****************************************/
GtkStyle*
gtk_widget_get_style (GtkWidget *widget)
{
g_return_val_if_fail (widget != NULL, NULL);
return widget->style;
}
/*****************************************
* gtk_widget_get_events:
*
* arguments:
*
* results:
*****************************************/
gint
gtk_widget_get_events (GtkWidget *widget)
{
gint *events;
g_return_val_if_fail (widget != NULL, 0);
events = gtk_object_get_data (GTK_OBJECT (widget), event_key);
if (events)
return *events;
return 0;
}
/*****************************************
* gtk_widget_get_extension_events:
*
* arguments:
*
* results:
*****************************************/
GdkExtensionMode
gtk_widget_get_extension_events (GtkWidget *widget)
{
GdkExtensionMode *mode;
g_return_val_if_fail (widget != NULL, 0);
mode = gtk_object_get_data (GTK_OBJECT (widget), extension_event_key);
if (mode)
return *mode;
return 0;
}
/*****************************************
* gtk_widget_get_pointer:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_get_pointer (GtkWidget *widget,
gint *x,
gint *y)
{
g_return_if_fail (widget != NULL);
if (x)
*x = -1;
if (y)
*y = -1;
if (GTK_WIDGET_REALIZED (widget))
{
gdk_window_get_pointer (widget->window, x, y, NULL);
if (GTK_WIDGET_NO_WINDOW (widget))
{
if (x)
*x -= widget->allocation.x;
if (y)
*y -= widget->allocation.y;
}
}
}
/*****************************************
* gtk_widget_is_ancestor:
*
* arguments:
*
* results:
*****************************************/
gint
gtk_widget_is_ancestor (GtkWidget *widget,
GtkWidget *ancestor)
{
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (ancestor != NULL, FALSE);
while (widget)
{
if (widget->parent == ancestor)
return TRUE;
widget = widget->parent;
}
return FALSE;
}
/*****************************************
* gtk_widget_is_child:
*
* arguments:
*
* results:
*****************************************/
gint
gtk_widget_is_child (GtkWidget *widget,
GtkWidget *child)
{
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (child != NULL, FALSE);
return (child->parent == widget);
}
/*****************************************
* gtk_widget_push_colormap:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_push_colormap (GdkColormap *cmap)
{
colormap_stack = g_slist_prepend (colormap_stack, cmap);
}
/*****************************************
* gtk_widget_push_visual:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_push_visual (GdkVisual *visual)
{
visual_stack = g_slist_prepend (visual_stack, visual);
}
/*****************************************
* gtk_widget_push_style:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_push_style (GtkStyle *style)
{
gtk_style_ref (style);
style_stack = g_slist_prepend (style_stack, style);
}
/*****************************************
* gtk_widget_pop_colormap:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_pop_colormap ()
{
GSList *tmp;
if (colormap_stack)
{
tmp = colormap_stack;
colormap_stack = colormap_stack->next;
g_slist_free_1 (tmp);
}
}
/*****************************************
* gtk_widget_pop_visual:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_pop_visual ()
{
GSList *tmp;
if (visual_stack)
{
tmp = visual_stack;
visual_stack = visual_stack->next;
g_slist_free_1 (tmp);
}
}
/*****************************************
* gtk_widget_pop_style:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_pop_style ()
{
GSList *tmp;
if (style_stack)
{
tmp = style_stack;
style_stack = style_stack->next;
gtk_style_unref ((GtkStyle*) tmp->data);
g_slist_free_1 (tmp);
}
}
/*****************************************
* gtk_widget_set_default_colormap:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_set_default_colormap (GdkColormap *colormap)
{
if (default_colormap != colormap)
{
if (default_colormap)
gdk_colormap_unref (default_colormap);
default_colormap = colormap;
if (default_colormap)
gdk_colormap_ref (default_colormap);
}
}
/*****************************************
* gtk_widget_set_default_visual:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_set_default_visual (GdkVisual *visual)
{
default_visual = visual;
}
/*****************************************
* gtk_widget_set_default_style:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_set_default_style (GtkStyle *style)
{
if (style != default_style)
{
if (default_style)
gtk_style_unref (default_style);
default_style = style;
if (default_style)
gtk_style_ref (default_style);
}
}
/* Basically, send a message to all toplevel windows telling them
* that a new _GTK_STYLE_COLORS property is available on the root
* window
*/
void
gtk_widget_propagate_default_style (void)
{
GdkEventClient sev;
int i;
/* Set the property on the root window */
gdk_property_change(GDK_ROOT_PARENT(),
gdk_atom_intern("_GTK_DEFAULT_COLORS", FALSE),
gdk_atom_intern("STRING", FALSE),
8*sizeof(gushort),
GDK_PROP_MODE_REPLACE,
(guchar *)gtk_widget_get_default_style(),
GTK_STYLE_NUM_STYLECOLORS() * sizeof(GdkColor));
for(i = 0; i < 5; i++)
sev.data.l[i] = 0;
sev.data_format = 32;
sev.message_type = gdk_atom_intern ("_GTK_STYLE_CHANGED", FALSE);
gdk_event_send_clientmessage_toall ((GdkEvent *) &sev);
}
/*****************************************
* gtk_widget_get_default_colormap:
*
* arguments:
*
* results:
*****************************************/
GdkColormap*
gtk_widget_get_default_colormap ()
{
if (!default_colormap)
default_colormap = gdk_colormap_get_system ();
return default_colormap;
}
/*****************************************
* gtk_widget_get_default_visual:
*
* arguments:
*
* results:
*****************************************/
GdkVisual*
gtk_widget_get_default_visual ()
{
if (!default_visual)
default_visual = gdk_visual_get_system ();
return default_visual;
}
/*****************************************
* gtk_widget_get_default_style:
*
* arguments:
*
* results:
*****************************************/
GtkStyle*
gtk_widget_get_default_style ()
{
if (!default_style)
{
default_style = gtk_style_new ();
gtk_style_ref (default_style);
}
return default_style;
}
/*****************************************
* gtk_widget_marshal_signal_1:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_widget_marshal_signal_1 (GtkObject *object,
GtkSignalFunc func,
gpointer func_data,
GtkArg *args)
{
GtkWidgetSignal1 rfunc;
rfunc = (GtkWidgetSignal1) func;
(* rfunc) (object, GTK_VALUE_POINTER (args[0]), func_data);
}
/*****************************************
* gtk_widget_marshal_signal_2:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_widget_marshal_signal_2 (GtkObject *object,
GtkSignalFunc func,
gpointer func_data,
GtkArg *args)
{
GtkWidgetSignal2 rfunc;
gint *return_val;
rfunc = (GtkWidgetSignal2) func;
return_val = GTK_RETLOC_BOOL (args[3]);
*return_val = (* rfunc) (object, GTK_VALUE_STRING (args[0]),
GTK_VALUE_CHAR (args[1]), GTK_VALUE_INT (args[2]),
func_data);
}
/*****************************************
* gtk_widget_marshal_signal_3:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_widget_marshal_signal_3 (GtkObject *object,
GtkSignalFunc func,
gpointer func_data,
GtkArg *args)
{
GtkWidgetSignal3 rfunc;
rfunc = (GtkWidgetSignal3) func;
(* rfunc) (object, GTK_VALUE_STRING (args[0]), func_data);
}
/*****************************************
* gtk_widget_marshal_signal_4:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_widget_marshal_signal_4 (GtkObject *object,
GtkSignalFunc func,
gpointer func_data,
GtkArg *args)
{
GtkWidgetSignal4 rfunc;
gint *return_val;
rfunc = (GtkWidgetSignal4) func;
return_val = GTK_RETLOC_BOOL (args[1]);
*return_val = (* rfunc) (object, GTK_VALUE_BOXED (args[0]), func_data);
}
/*****************************************
* gtk_real_widget_destroy:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_real_widget_destroy (GtkObject *object)
{
GtkWidget *widget;
GtkWidgetAuxInfo *aux_info;
gint *events;
GdkExtensionMode *mode;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_WIDGET (object));
widget = GTK_WIDGET (object);
if (GTK_WIDGET_REDRAW_PENDING (widget))
g_warning ("redraw pending\n");
if (GTK_WIDGET_RESIZE_PENDING (widget))
g_warning ("resize pending\n");
if (GTK_WIDGET_RESIZE_NEEDED (widget))
g_warning ("resize needed\n");
gtk_grab_remove (widget);
gtk_selection_remove_all (widget);
if (widget->name)
g_free (widget->name);
aux_info = gtk_object_get_data (GTK_OBJECT (widget), aux_info_key);
if (aux_info)
{
gtk_widget_aux_info_destroy (aux_info);
gtk_object_remove_data (GTK_OBJECT (widget), aux_info_key);
}
events = gtk_object_get_data (GTK_OBJECT (object), event_key);
if (events)
g_free (events);
mode = gtk_object_get_data (GTK_OBJECT (object), extension_event_key);
if (mode)
g_free (mode);
if (GTK_WIDGET_REALIZED (widget))
gtk_widget_unrealize (widget);
gtk_style_unref (widget->style);
if (GTK_OBJECT_CLASS (parent_class)->destroy)
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
/*****************************************
* gtk_real_widget_show:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_real_widget_show (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_WIDGET (widget));
if (!GTK_WIDGET_VISIBLE (widget))
{
GTK_WIDGET_SET_FLAGS (widget, GTK_VISIBLE);
if (widget->parent)
{
gtk_widget_queue_resize (widget);
if (GTK_WIDGET_MAPPED (widget->parent))
gtk_widget_map (widget);
}
}
}
/*****************************************
* gtk_real_widget_hide:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_real_widget_hide (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_WIDGET (widget));
if (GTK_WIDGET_VISIBLE (widget))
{
GTK_WIDGET_UNSET_FLAGS (widget, GTK_VISIBLE);
if (GTK_WIDGET_MAPPED (widget))
gtk_widget_unmap (widget);
if (widget->parent)
gtk_widget_queue_resize (widget);
}
}
/*****************************************
* gtk_real_widget_map:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_real_widget_map (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_WIDGET (widget));
if (GTK_WIDGET_REALIZED (widget) && !GTK_WIDGET_MAPPED (widget))
{
GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
if (!GTK_WIDGET_NO_WINDOW (widget))
gdk_window_show (widget->window);
else
gtk_widget_queue_draw (widget);
}
}
/*****************************************
* gtk_real_widget_unmap:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_real_widget_unmap (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_WIDGET (widget));
if (GTK_WIDGET_MAPPED (widget))
{
GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
if (GTK_WIDGET_NO_WINDOW (widget))
gdk_window_clear_area (widget->window,
widget->allocation.x,
widget->allocation.y,
widget->allocation.width,
widget->allocation.height);
else
gdk_window_hide (widget->window);
}
}
/*****************************************
* gtk_real_widget_realize:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_real_widget_realize (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_WIDGET (widget));
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
if(widget->parent)
widget->window = gtk_widget_get_parent_window (widget);
widget->style = gtk_style_attach (widget->style, widget->window);
}
/*****************************************
* gtk_real_widget_unrealize:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_real_widget_unrealize (GtkWidget *widget)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_WIDGET (widget));
GTK_WIDGET_UNSET_FLAGS (widget, GTK_REALIZED | GTK_MAPPED);
gtk_style_detach (widget->style);
if (!GTK_WIDGET_NO_WINDOW (widget))
{
gdk_window_set_user_data (widget->window, NULL);
gdk_window_destroy (widget->window);
}
widget->window = NULL;
}
/*****************************************
* gtk_real_widget_draw:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_real_widget_draw (GtkWidget *widget,
GdkRectangle *area)
{
GdkEventExpose event;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_WIDGET (widget));
g_return_if_fail (area != NULL);
if (GTK_WIDGET_DRAWABLE (widget))
{
event.type = GDK_EXPOSE;
event.window = widget->window;
event.area = *area;
gtk_widget_event (widget, (GdkEvent*) &event);
}
}
/*****************************************
* gtk_real_widget_queue_draw:
*
* arguments:
*
* results:
*****************************************/
static gint
gtk_real_widget_queue_draw (GtkWidget *widget)
{
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
GTK_WIDGET_UNSET_FLAGS (widget, GTK_REDRAW_PENDING);
gtk_object_unref (GTK_OBJECT (widget));
if (GTK_OBJECT_NEED_DESTROY (widget) &&
(GTK_OBJECT (widget)->ref_count == 0))
gtk_widget_destroy (widget);
else
gtk_widget_draw (widget, NULL);
return FALSE;
}
/*****************************************
* gtk_real_widget_queue_resize:
*
* arguments:
*
* results:
*****************************************/
static gint
gtk_real_widget_queue_resize (GtkWidget *widget)
{
GSList *resize_widgets;
GSList *tmp_list;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
GTK_WIDGET_UNSET_FLAGS (widget, GTK_RESIZE_PENDING);
gtk_object_unref (GTK_OBJECT (widget));
if (GTK_OBJECT_NEED_DESTROY (widget) &&
(GTK_OBJECT (widget)->ref_count == 0))
{
gtk_widget_destroy (widget);
}
else
{
gtk_container_need_resize (GTK_CONTAINER (widget));
if (!GTK_WIDGET_RESIZE_PENDING (widget))
{
resize_widgets = gtk_object_get_data (GTK_OBJECT (widget), resize_widgets_key);
tmp_list = resize_widgets;
while (tmp_list)
{
GtkWidget *child;
child = tmp_list->data;
tmp_list = tmp_list->next;
/* referencing needed? */
GTK_WIDGET_UNSET_FLAGS (child, GTK_RESIZE_NEEDED);
gtk_object_unref (GTK_OBJECT (child));
}
if (resize_widgets)
{
gtk_object_set_data (GTK_OBJECT (widget), resize_widgets_key, NULL);
g_slist_free (resize_widgets);
}
}
}
return FALSE;
}
/*****************************************
* gtk_real_widget_size_allocate:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_real_widget_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_WIDGET (widget));
if (GTK_WIDGET_NO_WINDOW (widget) &&
GTK_WIDGET_MAPPED (widget) &&
((widget->allocation.x != allocation->x) ||
(widget->allocation.y != allocation->y) ||
(widget->allocation.width != allocation->width) ||
(widget->allocation.height != allocation->height)) &&
(widget->allocation.width != 0) &&
(widget->allocation.height != 0))
gdk_window_clear_area (widget->window,
widget->allocation.x,
widget->allocation.y,
widget->allocation.width,
widget->allocation.height);
widget->allocation = *allocation;
if (GTK_WIDGET_REALIZED (widget) &&
!GTK_WIDGET_NO_WINDOW (widget))
gdk_window_move_resize (widget->window,
allocation->x, allocation->y,
allocation->width, allocation->height);
}
/*****************************************
* gtk_widget_peek_colormap:
*
* arguments:
*
* results:
*****************************************/
static GdkColormap*
gtk_widget_peek_colormap ()
{
if (colormap_stack)
return (GdkColormap*) colormap_stack->data;
return gtk_widget_get_default_colormap ();
}
/*****************************************
* gtk_widget_peek_visual:
*
* arguments:
*
* results:
*****************************************/
static GdkVisual*
gtk_widget_peek_visual ()
{
if (visual_stack)
return (GdkVisual*) visual_stack->data;
return gtk_widget_get_default_visual ();
}
/*****************************************
* gtk_widget_peek_style:
*
* arguments:
*
* results:
*****************************************/
static GtkStyle*
gtk_widget_peek_style ()
{
if (style_stack)
return (GtkStyle*) style_stack->data;
return gtk_widget_get_default_style ();
}
/*****************************************
* gtk_widget_set_parent_sensitive:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_widget_set_parent_sensitive (GtkWidget *widget,
gpointer client_data)
{
GtkWidget *window;
gint *sensitive;
sensitive = client_data;
if (*sensitive)
{
GTK_WIDGET_SET_FLAGS (widget, GTK_PARENT_SENSITIVE);
if (GTK_IS_CONTAINER (widget) && GTK_WIDGET_SENSITIVE (widget))
gtk_container_foreach (GTK_CONTAINER (widget),
gtk_widget_set_parent_sensitive,
client_data);
}
else
{
GTK_WIDGET_UNSET_FLAGS (widget, GTK_PARENT_SENSITIVE);
if (GTK_WIDGET_HAS_FOCUS (widget))
{
window = gtk_widget_get_ancestor (widget, gtk_window_get_type ());
if (window)
gtk_window_set_focus (GTK_WINDOW (window), NULL);
}
if (GTK_IS_CONTAINER (widget))
gtk_container_foreach (GTK_CONTAINER (widget),
gtk_widget_set_parent_sensitive,
client_data);
}
}
/*****************************************
* gtk_widget_propagate_restore:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_widget_propagate_restore (GtkWidget *widget,
gpointer client_data)
{
gtk_widget_restore_state (widget);
}
/*****************************************
* gtk_widget_propagate_state:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_widget_propagate_state (GtkWidget *widget,
gpointer client_data)
{
GtkStateType *state;
state = (GtkStateType*) client_data;
gtk_widget_set_state (widget, *state);
}
/*****************************************
* gtk_widget_draw_children_recurse:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_widget_draw_children_recurse (GtkWidget *widget,
gpointer client_data)
{
gtk_widget_draw (widget, NULL);
gtk_widget_draw_children (widget);
}
/*****************************************
* gtk_widget_set_style_internal:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_widget_set_style_internal (GtkWidget *widget,
GtkStyle *style)
{
GtkRequisition old_requisition;
g_return_if_fail (widget != NULL);
if (widget->style != style)
{
if (GTK_WIDGET_REALIZED (widget))
gtk_style_detach (widget->style);
gtk_style_unref (widget->style);
widget->style = style;
gtk_style_ref (widget->style);
if (GTK_WIDGET_REALIZED (widget))
widget->style = gtk_style_attach (widget->style, widget->window);
if (widget->parent)
{
old_requisition = widget->requisition;
gtk_widget_size_request (widget, &widget->requisition);
if ((old_requisition.width != widget->requisition.width) ||
(old_requisition.height != widget->requisition.height))
gtk_widget_queue_resize (widget);
else if (GTK_WIDGET_DRAWABLE (widget))
gtk_widget_queue_draw (widget);
}
}
}
/*****************************************
* gtk_widget_set_style_recurse:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_widget_set_style_recurse (GtkWidget *widget,
gpointer client_data)
{
GtkStyle *style;
style = gtk_rc_get_style (widget);
if (style != widget->style)
gtk_widget_set_style_internal (widget, style);
if (GTK_IS_CONTAINER (widget))
gtk_container_foreach (GTK_CONTAINER (widget),
gtk_widget_set_style_recurse,
NULL);
}
/*****************************************
* gtk_widget_aux_info_new:
*
* arguments:
*
* results:
*****************************************/
static GtkWidgetAuxInfo*
gtk_widget_aux_info_new ()
{
GtkWidgetAuxInfo *aux_info;
if (!aux_info_mem_chunk)
aux_info_mem_chunk = g_mem_chunk_new ("widget aux info mem chunk",
sizeof (GtkWidgetAuxInfo),
1024, G_ALLOC_AND_FREE);
aux_info = g_chunk_new (GtkWidgetAuxInfo, aux_info_mem_chunk);
aux_info->x = -1;
aux_info->y = -1;
aux_info->width = 0;
aux_info->height = 0;
return aux_info;
}
/*****************************************
* gtk_widget_aux_info_destroy:
*
* arguments:
*
* results:
*****************************************/
static void
gtk_widget_aux_info_destroy (GtkWidgetAuxInfo *aux_info)
{
g_return_if_fail (aux_info != NULL);
g_mem_chunk_free (aux_info_mem_chunk, aux_info);
}
/*****************************************
* gtk_widget_shape_combine_mask:
* set a shape for this widgets' gdk window, this allows for
* transparent windows etc., see gdk_window_shape_combine_mask
* for more information
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_shape_combine_mask (GtkWidget *widget,
GdkBitmap *shape_mask,
gint offset_x,
gint offset_y)
{
GtkWidgetShapeInfo* shape_info;
g_return_if_fail (widget != NULL);
g_return_if_fail (shape_mask != NULL);
/* set_shape doesn't work on widgets without gdk window */
g_return_if_fail (!GTK_WIDGET_NO_WINDOW (widget));
/*
* remember shape mask for later gtk_widget_realize's
*/
shape_info = gtk_object_get_data (GTK_OBJECT (widget), shape_info_key);
if (!shape_info)
{
shape_info = g_new (GtkWidgetShapeInfo, 1);
gtk_object_set_data (GTK_OBJECT (widget), shape_info_key, shape_info);
}
shape_info->shape_mask = shape_mask;
shape_info->offset_x = offset_x;
shape_info->offset_y = offset_y;
GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_SHAPE_MASK);
/*
* set shape if widget has a gdk window allready.
* otherwise the shape is scheduled to be set by gtk_widget_realize.
*/
if (widget->window)
gdk_window_shape_combine_mask (widget->window, shape_mask,
offset_x, offset_y);
}
/*****************************************
* gtk_widget_dnd_drag_add:
* when you get a DRAG_ENTER event, you can use this
* to tell Gtk ofother widgets that are to be dragged as well
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_dnd_drag_add (GtkWidget *widget)
{
}
/*****************************************
* gtk_widget_dnd_drag_set:
* these two functions enable drag and/or drop on a
* widget and also let Gtk know what data types will be accepted
* use MIME type naming,plus tacking "URL:" on the front for link
* dragging
*
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_dnd_drag_set (GtkWidget *widget,
guint8 drag_enable,
gchar **type_accept_list,
guint numtypes)
{
g_return_if_fail(widget != NULL);
if (!widget->window)
gtk_widget_realize (widget);
g_return_if_fail (widget->window != NULL);
gdk_window_dnd_drag_set (widget->window,
drag_enable,
type_accept_list,
numtypes);
}
/*****************************************
* gtk_widget_dnd_drop_set:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_dnd_drop_set (GtkWidget *widget,
guint8 drop_enable,
gchar **type_accept_list,
guint numtypes,
guint8 is_destructive_operation)
{
g_return_if_fail(widget != NULL);
if (!widget->window)
gtk_widget_realize (widget);
g_return_if_fail (widget->window != NULL);
gdk_window_dnd_drop_set (widget->window,
drop_enable,
type_accept_list,
numtypes,
is_destructive_operation);
}
/*****************************************
* gtk_widget_dnd_data_set:
*
* arguments:
*
* results:
*****************************************/
void
gtk_widget_dnd_data_set (GtkWidget *widget,
GdkEvent *event,
gpointer data,
gulong data_numbytes)
{
g_return_if_fail (widget != NULL);
g_return_if_fail (widget->window != NULL);
gdk_window_dnd_data_set (widget->window, event, data, data_numbytes);
}
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