gdkwindow-win32.c

linux下电话本所依赖的一些图形库

/* GDK - The GIMP Drawing Kit
 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
 * Copyright (C) 1998-2004 Tor Lillqvist
 * Copyright (C) 2001-2004 Hans Breuer
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

/*
 * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
 * file for a list of people on the GTK+ Team.  See the ChangeLog
 * files for a list of changes.  These files are distributed with
 * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
 */

#include <config.h>
#include <stdlib.h>

#include "gdk.h" /* gdk_rectangle_intersect */
#include "gdkevents.h"
#include "gdkpixmap.h"
#include "gdkwindow.h"
#include "gdkdisplay.h"
#include "gdkprivate-win32.h"
#include "gdkinput-win32.h"

#if 0
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <stdio.h>
#endif

static GdkColormap* gdk_window_impl_win32_get_colormap (GdkDrawable *drawable);
static void         gdk_window_impl_win32_set_colormap (GdkDrawable *drawable,
							GdkColormap *cmap);
static void         gdk_window_impl_win32_get_size     (GdkDrawable *drawable,
							gint *width,
							gint *height);
static GdkRegion*   gdk_window_impl_win32_get_visible_region (GdkDrawable *drawable);
static void gdk_window_impl_win32_init       (GdkWindowImplWin32      *window);
static void gdk_window_impl_win32_class_init (GdkWindowImplWin32Class *klass);
static void gdk_window_impl_win32_finalize   (GObject                 *object);

static gpointer parent_class = NULL;

GType
_gdk_window_impl_win32_get_type (void)
{
  static GType object_type = 0;

  if (!object_type)
    {
      static const GTypeInfo object_info =
      {
        sizeof (GdkWindowImplWin32Class),
        (GBaseInitFunc) NULL,
        (GBaseFinalizeFunc) NULL,
        (GClassInitFunc) gdk_window_impl_win32_class_init,
        NULL,           /* class_finalize */
        NULL,           /* class_data */
        sizeof (GdkWindowImplWin32),
        0,              /* n_preallocs */
        (GInstanceInitFunc) gdk_window_impl_win32_init,
      };
      
      object_type = g_type_register_static (GDK_TYPE_DRAWABLE_IMPL_WIN32,
                                            "GdkWindowImplWin32",
                                            &object_info, 0);
    }
  
  return object_type;
}

GType
_gdk_window_impl_get_type (void)
{
  return _gdk_window_impl_win32_get_type ();
}

static void
gdk_window_impl_win32_init (GdkWindowImplWin32 *impl)
{
  impl->width = 1;
  impl->height = 1;

  impl->hcursor = NULL;
  impl->hicon_big = NULL;
  impl->hicon_small = NULL;
  impl->hint_flags = 0;
  impl->extension_events_selected = FALSE;
}

static void
gdk_window_impl_win32_class_init (GdkWindowImplWin32Class *klass)
{
  GObjectClass *object_class = G_OBJECT_CLASS (klass);
  GdkDrawableClass *drawable_class = GDK_DRAWABLE_CLASS (klass);
  
  parent_class = g_type_class_peek_parent (klass);

  object_class->finalize = gdk_window_impl_win32_finalize;

  drawable_class->set_colormap = gdk_window_impl_win32_set_colormap;
  drawable_class->get_colormap = gdk_window_impl_win32_get_colormap;
  drawable_class->get_size = gdk_window_impl_win32_get_size;

  /* Visible and clip regions are the same */
  drawable_class->get_clip_region = gdk_window_impl_win32_get_visible_region;
  drawable_class->get_visible_region = gdk_window_impl_win32_get_visible_region;
}

static void
gdk_window_impl_win32_finalize (GObject *object)
{
  GdkWindowObject *wrapper;
  GdkDrawableImplWin32 *draw_impl;
  GdkWindowImplWin32 *window_impl;
  
  g_return_if_fail (GDK_IS_WINDOW_IMPL_WIN32 (object));

  draw_impl = GDK_DRAWABLE_IMPL_WIN32 (object);
  window_impl = GDK_WINDOW_IMPL_WIN32 (object);
  
  wrapper = (GdkWindowObject*) draw_impl->wrapper;

  if (!GDK_WINDOW_DESTROYED (wrapper))
    {
      gdk_win32_handle_table_remove (draw_impl->handle);
    }

  if (window_impl->hcursor != NULL)
    {
      if (GetCursor () == window_impl->hcursor)
	SetCursor (NULL);
      GDI_CALL (DestroyCursor, (window_impl->hcursor));
      window_impl->hcursor = NULL;
    }
  if (window_impl->hicon_big != NULL)
    {
      GDI_CALL (DestroyIcon, (window_impl->hicon_big));
      window_impl->hicon_big = NULL;
    }
  if (window_impl->hicon_small != NULL)
    {
      GDI_CALL (DestroyIcon, (window_impl->hicon_small));
      window_impl->hicon_small = NULL;
    }

  G_OBJECT_CLASS (parent_class)->finalize (object);
}

void
_gdk_win32_adjust_client_rect (GdkWindow *window,
			       RECT      *rect)
{
  LONG style, exstyle;

  style = GetWindowLong (GDK_WINDOW_HWND (window), GWL_STYLE);
  exstyle = GetWindowLong (GDK_WINDOW_HWND (window), GWL_EXSTYLE);
  API_CALL (AdjustWindowRectEx, (rect, style, FALSE, exstyle));
}

void
_gdk_win32_get_adjusted_client_rect (GdkWindow *window,
				     RECT      *rect)
{
  GetClientRect (GDK_WINDOW_HWND (window), rect);
  _gdk_win32_adjust_client_rect (window, rect);
}

static GdkColormap*
gdk_window_impl_win32_get_colormap (GdkDrawable *drawable)
{
  GdkDrawableImplWin32 *drawable_impl;
  
  g_return_val_if_fail (GDK_IS_WINDOW_IMPL_WIN32 (drawable), NULL);

  drawable_impl = GDK_DRAWABLE_IMPL_WIN32 (drawable);

  if (!((GdkWindowObject *) drawable_impl->wrapper)->input_only && 
      drawable_impl->colormap == NULL)
    {
      drawable_impl->colormap = 
        gdk_screen_get_system_colormap (gdk_drawable_get_screen (drawable));
      g_object_ref (drawable_impl->colormap);
    }
  
  return drawable_impl->colormap;
}

static void
gdk_window_impl_win32_set_colormap (GdkDrawable *drawable,
				    GdkColormap *cmap)
{
  GdkWindowImplWin32 *impl;
  GdkDrawableImplWin32 *draw_impl;
  
  g_return_if_fail (GDK_IS_WINDOW_IMPL_WIN32 (drawable));

  impl = GDK_WINDOW_IMPL_WIN32 (drawable);
  draw_impl = GDK_DRAWABLE_IMPL_WIN32 (drawable);

  /* chain up */
  GDK_DRAWABLE_CLASS (parent_class)->set_colormap (drawable, cmap);
  
  if (cmap)
    {
      /* XXX */
      g_print("gdk_window_impl_win32_set_colormap: XXX\n");
    }
}

static void
gdk_window_impl_win32_get_size (GdkDrawable *drawable,
				gint        *width,
				gint        *height)
{
  g_return_if_fail (GDK_IS_WINDOW_IMPL_WIN32 (drawable));

  if (width)
    *width = GDK_WINDOW_IMPL_WIN32 (drawable)->width;
  if (height)
    *height = GDK_WINDOW_IMPL_WIN32 (drawable)->height;
}

static GdkRegion*
gdk_window_impl_win32_get_visible_region (GdkDrawable *drawable)
{
  GdkWindowImplWin32 *impl = GDK_WINDOW_IMPL_WIN32 (drawable);
  GdkRectangle result_rect;
  HDC hdc;

  result_rect.x = 0;
  result_rect.y = 0;
  result_rect.width = impl->width;
  result_rect.height = impl->height;

  gdk_rectangle_intersect (&result_rect, &impl->position_info.clip_rect, &result_rect);

  /* take this win32 specific part into account (smaller when obscured) */
  hdc = GetDC (GDK_DRAWABLE_IMPL_WIN32_HANDLE (impl));
  if (hdc)
    {
      RECT r;
      if (SIMPLEREGION == GetClipBox (hdc, &r))
        {
          GdkRectangle gr;

          gr.x = r.left + impl->position_info.x_offset;
          gr.y = r.top + impl->position_info.y_offset;
          gr.width = r.right - r.left;
          gr.height = r.bottom - r.top;

          gdk_rectangle_intersect (&result_rect, &gr, &result_rect);
        }
      ReleaseDC (GDK_DRAWABLE_IMPL_WIN32_HANDLE (drawable), hdc);
    }

  return gdk_region_rectangle (&result_rect);
}

void
_gdk_root_window_size_init (void)
{
  GdkWindowImplWin32 *impl;
  GdkRectangle rect;
  int i;

  impl = GDK_WINDOW_IMPL_WIN32 (((GdkWindowObject *) _gdk_parent_root)->impl);
  rect = _gdk_monitors[0];
  for (i = 1; i < _gdk_num_monitors; i++)
    gdk_rectangle_union (&rect, _gdk_monitors+i, &rect);

  impl->width = rect.width;
  impl->height = rect.height;
}

void
_gdk_windowing_window_init (void)
{
  GdkWindowObject *private;
  GdkDrawableImplWin32 *draw_impl;

  g_assert (_gdk_parent_root == NULL);
  
  _gdk_parent_root = g_object_new (GDK_TYPE_WINDOW, NULL);
  private = (GdkWindowObject *)_gdk_parent_root;
  draw_impl = GDK_DRAWABLE_IMPL_WIN32 (private->impl);
  
  draw_impl->handle = _gdk_root_window;
  draw_impl->wrapper = GDK_DRAWABLE (private);
  draw_impl->colormap = gdk_colormap_get_system ();
  g_object_ref (draw_impl->colormap);
  
  private->window_type = GDK_WINDOW_ROOT;
  private->depth = gdk_visual_get_system ()->depth;

  _gdk_root_window_size_init ();
 
  _gdk_window_init_position (GDK_WINDOW (private));

  gdk_win32_handle_table_insert (&_gdk_root_window, _gdk_parent_root);

  GDK_NOTE (MISC, g_print ("_gdk_parent_root=%p\n", GDK_WINDOW_HWND (_gdk_parent_root)));
}

static const gchar *
get_default_title (void)
{
  const char *title;
  title = g_get_application_name ();
  if (!title)
    title = g_get_prgname ();

  return title;
}

/* RegisterGdkClass
 *   is a wrapper function for RegisterWindowClassEx.
 *   It creates at least one unique class for every 
 *   GdkWindowType. If support for single window-specific icons
 *   is ever needed (e.g Dialog specific), every such window should
 *   get its own class
 */
static ATOM
RegisterGdkClass (GdkWindowType wtype)
{
  static ATOM klassTOPLEVEL = 0;
  static ATOM klassDIALOG   = 0;
  static ATOM klassCHILD    = 0;
  static ATOM klassTEMP     = 0;
  static HICON hAppIcon = NULL;
  static WNDCLASSEX wcl; 
  ATOM klass = 0;

  wcl.cbSize = sizeof (WNDCLASSEX);
  wcl.style = 0; /* DON'T set CS_<H,V>REDRAW. It causes total redraw
                  * on WM_SIZE and WM_MOVE. Flicker, Performance!
                  */
  wcl.lpfnWndProc = _gdk_win32_window_procedure;
  wcl.cbClsExtra = 0;
  wcl.cbWndExtra = 0;
  wcl.hInstance = _gdk_app_hmodule;
  wcl.hIcon = 0;
  /* initialize once! */
  if (0 == hAppIcon)
    {
      gchar sLoc [MAX_PATH+1];

      if (0 != GetModuleFileName (_gdk_app_hmodule, sLoc, MAX_PATH))
	{
	  hAppIcon = ExtractIcon (_gdk_app_hmodule, sLoc, 0);
	  if (0 == hAppIcon)
	    {
	      if (0 != GetModuleFileName (_gdk_dll_hinstance, sLoc, MAX_PATH))
		hAppIcon = ExtractIcon (_gdk_dll_hinstance, sLoc, 0);
	    }
	}
      if (0 == hAppIcon) 
	hAppIcon = LoadIcon (NULL, IDI_APPLICATION);
    }

  wcl.lpszMenuName = NULL;
  wcl.hIconSm = 0;

  /* initialize once per class */
  /*
   * HB: Setting the background brush leads to flicker, because we
   * don't get asked how to clear the background. This is not what
   * we want, at least not for input_only windows ...
   */
#define ONCE_PER_CLASS() \
  wcl.hIcon = CopyIcon (hAppIcon); \
  wcl.hIconSm = CopyIcon (hAppIcon); \
  wcl.hbrBackground = NULL; \
  wcl.hCursor = LoadCursor (NULL, IDC_ARROW); 
  
  switch (wtype)
    {
    case GDK_WINDOW_TOPLEVEL:
      if (0 == klassTOPLEVEL)
	{
	  wcl.lpszClassName = "gdkWindowToplevel";
	  
	  ONCE_PER_CLASS();
	  klassTOPLEVEL = RegisterClassEx (&wcl);
	}
      klass = klassTOPLEVEL;
      break;
      
    case GDK_WINDOW_CHILD:
      if (0 == klassCHILD)
	{
	  wcl.lpszClassName = "gdkWindowChild";
	  
	  wcl.style |= CS_PARENTDC; /* MSDN: ... enhances system performance. */
	  ONCE_PER_CLASS();
	  klassCHILD = RegisterClassEx (&wcl);
	}
      klass = klassCHILD;
      break;
      
    case GDK_WINDOW_DIALOG:
      if (0 == klassDIALOG)
	{
	  wcl.lpszClassName = "gdkWindowDialog";
	  wcl.style |= CS_SAVEBITS;
	  ONCE_PER_CLASS();
	  klassDIALOG = RegisterClassEx (&wcl);
	}
      klass = klassDIALOG;
      break;
      
    case GDK_WINDOW_TEMP:
      if (0 == klassTEMP)
	{
	  wcl.lpszClassName = "gdkWindowTemp";
	  wcl.style |= CS_SAVEBITS;
	  ONCE_PER_CLASS();
	  klassTEMP = RegisterClassEx (&wcl);
	}
      klass = klassTEMP;
      break;
      
    default:
      g_assert_not_reached ();
      break;
    }
  
  if (klass == 0)
    {
      WIN32_API_FAILED ("RegisterClassEx");
      g_error ("That is a fatal error");
    }
  return klass;
}

static GdkWindow*
gdk_window_new_internal (GdkWindow     *parent,
			 GdkWindowAttr *attributes,
			 gint           attributes_mask,
			 gboolean       from_set_skip_taskbar_hint)
{
  HANDLE hparent;
  ATOM klass = 0;
  DWORD dwStyle = 0, dwExStyle;
  RECT rect;
  GdkWindow *window;
  GdkWindowObject *private;
  GdkWindowImplWin32 *impl;
  GdkDrawableImplWin32 *draw_impl;
  GdkScreen *screen;
  GdkVisual *visual;
  const gchar *title;
  char *mbtitle;
  gint window_width, window_height;
  gint offset_x = 0, offset_y = 0;

  g_return_val_if_fail (attributes != NULL, NULL);

  if (!parent)
    {
      screen = gdk_screen_get_default ();
      parent = gdk_screen_get_root_window (screen);
    }
  else
    screen = gdk_drawable_get_screen (parent);

  g_return_val_if_fail (GDK_IS_WINDOW (parent), NULL);
  
  GDK_NOTE (MISC,
	    g_print ("gdk_window_new: %s\n",
		     (attributes->window_type == GDK_WINDOW_TOPLEVEL ? "TOPLEVEL" :
		      (attributes->window_type == GDK_WINDOW_CHILD ? "CHILD" :
		       (attributes->window_type == GDK_WINDOW_DIALOG ? "DIALOG" :
			(attributes->window_type == GDK_WINDOW_TEMP ? "TEMP" :
			 "???"))))));

  if (GDK_WINDOW_DESTROYED (parent))
    return NULL;