386 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			386 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/* GTK - The GIMP Toolkit
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 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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 *
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 * This library is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2 of the License, or (at your option) any later version.
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 *
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 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with this library; if not, write to the Free
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 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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 */
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/*
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 * Modified by the GTK+ Team and others 1997-2006.  See the AUTHORS
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 * file for a list of people on the GTK+ Team.  See the ChangeLog
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 * files for a list of changes.  These files are distributed with
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 * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
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 */
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#include "config.h"
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#include "gtkmain.h"
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#include "gtkmarshalers.h"
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#include "gtkwin32embedwidget.h"
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#include "gtkintl.h"
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#include "gtkprivate.h"
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#include "gtkalias.h"
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static void            gtk_win32_embed_widget_realize               (GtkWidget        *widget);
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static void            gtk_win32_embed_widget_unrealize             (GtkWidget        *widget);
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static void            gtk_win32_embed_widget_show                  (GtkWidget        *widget);
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static void            gtk_win32_embed_widget_hide                  (GtkWidget        *widget);
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static void            gtk_win32_embed_widget_map                   (GtkWidget        *widget);
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static void            gtk_win32_embed_widget_unmap                 (GtkWidget        *widget);
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static void            gtk_win32_embed_widget_size_allocate         (GtkWidget        *widget,
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								     GtkAllocation    *allocation);
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static void            gtk_win32_embed_widget_set_focus             (GtkWindow        *window,
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								     GtkWidget        *focus);
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static gboolean        gtk_win32_embed_widget_focus                 (GtkWidget        *widget,
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								     GtkDirectionType  direction);
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static void            gtk_win32_embed_widget_check_resize          (GtkContainer     *container);
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static GtkBinClass *bin_class = NULL;
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G_DEFINE_TYPE (GtkWin32EmbedWidget, gtk_win32_embed_widget, GTK_TYPE_WINDOW)
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static void
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gtk_win32_embed_widget_class_init (GtkWin32EmbedWidgetClass *class)
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{
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  GtkWidgetClass *widget_class = (GtkWidgetClass *)class;
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  GtkWindowClass *window_class = (GtkWindowClass *)class;
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  GtkContainerClass *container_class = (GtkContainerClass *)class;
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  bin_class = g_type_class_peek (GTK_TYPE_BIN);
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  widget_class->realize = gtk_win32_embed_widget_realize;
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  widget_class->unrealize = gtk_win32_embed_widget_unrealize;
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  widget_class->show = gtk_win32_embed_widget_show;
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  widget_class->hide = gtk_win32_embed_widget_hide;
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  widget_class->map = gtk_win32_embed_widget_map;
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  widget_class->unmap = gtk_win32_embed_widget_unmap;
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  widget_class->size_allocate = gtk_win32_embed_widget_size_allocate;
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  widget_class->focus = gtk_win32_embed_widget_focus;
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  container_class->check_resize = gtk_win32_embed_widget_check_resize;
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  window_class->set_focus = gtk_win32_embed_widget_set_focus;
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}
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static void
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gtk_win32_embed_widget_init (GtkWin32EmbedWidget *embed_widget)
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{
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  GtkWindow *window;
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  window = GTK_WINDOW (embed_widget);
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  window->type = GTK_WINDOW_TOPLEVEL;
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  GTK_WIDGET_SET_FLAGS (embed_widget, GTK_TOPLEVEL);
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  gtk_container_set_resize_mode (GTK_CONTAINER (embed_widget), GTK_RESIZE_QUEUE);
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}
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GtkWidget*
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_gtk_win32_embed_widget_new (GdkNativeWindow parent_id)
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{
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  GtkWin32EmbedWidget *embed_widget;
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  embed_widget = g_object_new (GTK_TYPE_WIN32_EMBED_WIDGET, NULL);
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  embed_widget->parent_window =
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    gdk_window_lookup_for_display (gdk_display_get_default (),
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				   parent_id);
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  if (!embed_widget->parent_window)
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    embed_widget->parent_window =
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      gdk_window_foreign_new_for_display (gdk_display_get_default (),
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					  parent_id);
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  return GTK_WIDGET (embed_widget);
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}
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BOOL
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_gtk_win32_embed_widget_dialog_procedure (GtkWin32EmbedWidget *embed_widget,
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					  HWND wnd, UINT message, WPARAM wparam, LPARAM lparam)
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{
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  GtkWidget *widget = GTK_WIDGET (embed_widget);
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 if (message == WM_SIZE)
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   {
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     widget->allocation.width = LOWORD(lparam);
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     widget->allocation.height = HIWORD(lparam);
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     gtk_widget_queue_resize (widget);
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   }
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 return 0;
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}
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static void
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gtk_win32_embed_widget_unrealize (GtkWidget *widget)
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{
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  GtkWin32EmbedWidget *embed_widget = GTK_WIN32_EMBED_WIDGET (widget);
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  embed_widget->old_window_procedure = NULL;
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  if (embed_widget->parent_window != NULL)
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    {
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      gdk_window_set_user_data (embed_widget->parent_window, NULL);
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      g_object_unref (embed_widget->parent_window);
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      embed_widget->parent_window = NULL;
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    }
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  if (GTK_WIDGET_CLASS (gtk_win32_embed_widget_parent_class)->unrealize)
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    (* GTK_WIDGET_CLASS (gtk_win32_embed_widget_parent_class)->unrealize) (widget);
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}
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static LRESULT CALLBACK
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gtk_win32_embed_widget_window_process (HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
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{
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  GdkWindow *window;
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  GtkWin32EmbedWidget *embed_widget;
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  gpointer user_data;
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  window = gdk_window_lookup ((GdkNativeWindow)hwnd);
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  if (window == NULL) {
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    g_warning ("No such window!");
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    return 0;
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  }
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  gdk_window_get_user_data (window, &user_data);
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  embed_widget = GTK_WIN32_EMBED_WIDGET (user_data);
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  if (msg == WM_GETDLGCODE) {
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    return DLGC_WANTALLKEYS;
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  }
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  if (embed_widget && embed_widget->old_window_procedure)
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    return CallWindowProc(embed_widget->old_window_procedure,
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			  hwnd, msg, wparam, lparam);
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  else
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    return 0;
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}
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static void
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gtk_win32_embed_widget_realize (GtkWidget *widget)
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{
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  GtkWindow *window = GTK_WINDOW (widget);
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  GtkWin32EmbedWidget *embed_widget = GTK_WIN32_EMBED_WIDGET (widget);
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  GdkWindowAttr attributes;
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  gint attributes_mask;
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  LONG_PTR styles;
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  /* ensure widget tree is properly size allocated */
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  if (widget->allocation.x == -1 &&
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      widget->allocation.y == -1 &&
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      widget->allocation.width == 1 &&
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      widget->allocation.height == 1)
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    {
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      GtkRequisition requisition;
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      GtkAllocation allocation = { 0, 0, 200, 200 };
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      gtk_widget_size_request (widget, &requisition);
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      if (requisition.width || requisition.height)
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	{
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	  /* non-empty window */
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	  allocation.width = requisition.width;
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	  allocation.height = requisition.height;
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	}
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      gtk_widget_size_allocate (widget, &allocation);
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      _gtk_container_queue_resize (GTK_CONTAINER (widget));
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      g_return_if_fail (!GTK_WIDGET_REALIZED (widget));
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    }
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  GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
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  attributes.window_type = GDK_WINDOW_CHILD;
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  attributes.title = window->title;
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  attributes.wmclass_name = window->wmclass_name;
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  attributes.wmclass_class = window->wmclass_class;
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  attributes.width = widget->allocation.width;
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  attributes.height = widget->allocation.height;
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  attributes.wclass = GDK_INPUT_OUTPUT;
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  /* this isn't right - we should match our parent's visual/colormap.
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   * though that will require handling "foreign" colormaps */
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  attributes.visual = gtk_widget_get_visual (widget);
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  attributes.colormap = gtk_widget_get_colormap (widget);
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  attributes.event_mask = gtk_widget_get_events (widget);
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  attributes.event_mask |= (GDK_EXPOSURE_MASK |
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			    GDK_KEY_PRESS_MASK |
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			    GDK_KEY_RELEASE_MASK |
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			    GDK_ENTER_NOTIFY_MASK |
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			    GDK_LEAVE_NOTIFY_MASK |
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			    GDK_STRUCTURE_MASK |
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			    GDK_FOCUS_CHANGE_MASK);
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  attributes_mask = GDK_WA_VISUAL | GDK_WA_COLORMAP;
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  attributes_mask |= (window->title ? GDK_WA_TITLE : 0);
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  attributes_mask |= (window->wmclass_name ? GDK_WA_WMCLASS : 0);
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  widget->window = gdk_window_new (embed_widget->parent_window, 
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				   &attributes, attributes_mask);
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  gdk_window_set_user_data (widget->window, window);
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  embed_widget->old_window_procedure = (gpointer)
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    SetWindowLongPtrW(GDK_WINDOW_HWND (widget->window),
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		      GWLP_WNDPROC,
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		      (LONG_PTR)gtk_win32_embed_widget_window_process);
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  /* Enable tab to focus the widget */
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  styles = GetWindowLongPtr(GDK_WINDOW_HWND (widget->window), GWL_STYLE);
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  SetWindowLongPtrW(GDK_WINDOW_HWND (widget->window), GWL_STYLE, styles | WS_TABSTOP);
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  widget->style = gtk_style_attach (widget->style, widget->window);
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  gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
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}
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static void
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gtk_win32_embed_widget_show (GtkWidget *widget)
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{
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  GTK_WIDGET_SET_FLAGS (widget, GTK_VISIBLE);
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  gtk_widget_realize (widget);
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  gtk_container_check_resize (GTK_CONTAINER (widget));
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  gtk_widget_map (widget);
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}
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static void
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gtk_win32_embed_widget_hide (GtkWidget *widget)
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{
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  GTK_WIDGET_UNSET_FLAGS (widget, GTK_VISIBLE);
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  gtk_widget_unmap (widget);
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}
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static void
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gtk_win32_embed_widget_map (GtkWidget *widget)
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{
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  GtkBin *bin = GTK_BIN (widget);
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  GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
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  if (bin->child &&
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      GTK_WIDGET_VISIBLE (bin->child) &&
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      !GTK_WIDGET_MAPPED (bin->child))
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    gtk_widget_map (bin->child);
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  gdk_window_show (widget->window);
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}
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static void
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gtk_win32_embed_widget_unmap (GtkWidget *widget)
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{
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  GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
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  gdk_window_hide (widget->window);
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}
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static void
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gtk_win32_embed_widget_size_allocate (GtkWidget     *widget,
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				      GtkAllocation *allocation)
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{
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  GtkBin *bin = GTK_BIN (widget);
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  widget->allocation = *allocation;
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  if (GTK_WIDGET_REALIZED (widget))
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    gdk_window_move_resize (widget->window,
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			    allocation->x, allocation->y,
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			    allocation->width, allocation->height);
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  if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
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    {
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      GtkAllocation child_allocation;
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      child_allocation.x = child_allocation.y = GTK_CONTAINER (widget)->border_width;
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      child_allocation.width =
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	MAX (1, (gint)allocation->width - child_allocation.x * 2);
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      child_allocation.height =
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	MAX (1, (gint)allocation->height - child_allocation.y * 2);
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      gtk_widget_size_allocate (bin->child, &child_allocation);
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    }
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}
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static void
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gtk_win32_embed_widget_check_resize (GtkContainer *container)
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{
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  GTK_CONTAINER_CLASS (bin_class)->check_resize (container);
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}
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static gboolean
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gtk_win32_embed_widget_focus (GtkWidget        *widget,
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			      GtkDirectionType  direction)
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{
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  GtkBin *bin = GTK_BIN (widget);
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  GtkWin32EmbedWidget *embed_widget = GTK_WIN32_EMBED_WIDGET (widget);
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  GtkWindow *window = GTK_WINDOW (widget);
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  GtkContainer *container = GTK_CONTAINER (widget);
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  GtkWidget *old_focus_child = container->focus_child;
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  GtkWidget *parent;
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  /* We override GtkWindow's behavior, since we don't want wrapping here.
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   */
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  if (old_focus_child)
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    {
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      if (gtk_widget_child_focus (old_focus_child, direction))
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	return TRUE;
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      if (window->focus_widget)
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	{
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	  /* Wrapped off the end, clear the focus setting for the toplevel */
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	  parent = window->focus_widget->parent;
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	  while (parent)
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	    {
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	      gtk_container_set_focus_child (GTK_CONTAINER (parent), NULL);
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	      parent = GTK_WIDGET (parent)->parent;
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	    }
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	  gtk_window_set_focus (GTK_WINDOW (container), NULL);
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	}
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    }
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  else
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    {
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      /* Try to focus the first widget in the window */
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      if (bin->child && gtk_widget_child_focus (bin->child, direction))
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        return TRUE;
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    }
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  if (!GTK_CONTAINER (window)->focus_child)
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    {
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      int backwards = FALSE;
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      if (direction == GTK_DIR_TAB_BACKWARD ||
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	  direction == GTK_DIR_LEFT)
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	backwards = TRUE;
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      PostMessage(GDK_WINDOW_HWND (embed_widget->parent_window),
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				   WM_NEXTDLGCTL,
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				   backwards, 0);
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    }
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  return FALSE;
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}
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static void
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gtk_win32_embed_widget_set_focus (GtkWindow *window,
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				  GtkWidget *focus)
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{
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  GTK_WINDOW_CLASS (gtk_win32_embed_widget_parent_class)->set_focus (window, focus);
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  gdk_window_focus (GTK_WIDGET(window)->window, 0);
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}
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#define __GTK_WIN32_EMBED_WIDGET_C__
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#include "gtkaliasdef.c"
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