1 /* GDK - The GIMP Drawing Kit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
20 /* gdkgeometry-win32.c: emulation of 32 bit coordinates within the
21 * limits of Win32 GDI. The idea of big window emulation is more or less
22 * a copy of the X11 version, and the equvalent of guffaw scrolling
23 * is ScrollWindowEx(). While we determine the invalidated region
24 * ourself during scrolling, we do not pass SW_INVALIDATE to
25 * ScrollWindowEx() to avoid a unnecessary WM_PAINT.
27 * Bits are always scrolled correctly by ScrollWindowEx(), but
28 * some big children may hit the coordinate boundary (i.e.
29 * win32_x/win32_y < -16383) after scrolling. They needed to be moved
30 * back to the real position determined by gdk_window_compute_position().
31 * This is handled in gdk_window_postmove().
33 * The X11 version by Owen Taylor <otaylor@redhat.com>
34 * Copyright Red Hat, Inc. 2000
35 * Win32 hack by Tor Lillqvist <tml@iki.fi>
36 * and Hans Breuer <hans@breuer.org>
37 * Modified by Ivan, Wong Yat Cheung <email@ivanwong.info>
38 * so that big window emulation finally works.
42 #include "gdk.h" /* For gdk_rectangle_intersect */
43 #include "gdkinternals.h"
44 #include "gdkprivate-win32.h"
47 #define SIZE_LIMIT 32767
49 typedef struct _GdkWindowParentPos GdkWindowParentPos;
51 static void tmp_unset_bg (GdkWindow *window);
52 static void tmp_reset_bg (GdkWindow *window);
55 _gdk_window_move_resize_child (GdkWindow *window,
61 GdkWindowImplWin32 *impl;
63 g_return_if_fail (window != NULL);
64 g_return_if_fail (GDK_IS_WINDOW (window));
66 impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
68 GDK_NOTE (MISC, g_print ("_gdk_window_move_resize_child: %s@%+d%+d %dx%d@%+d%+d\n",
69 _gdk_win32_window_description (window),
70 window->x, window->y, width, height, x, y));
72 if (width > 65535 || height > 65535)
74 g_warning ("Native children wider or taller than 65535 pixels are not supported.");
84 window->width = width;
85 window->height = height;
87 _gdk_win32_window_tmp_unset_parent_bg (window);
88 _gdk_win32_window_tmp_unset_bg (window, TRUE);
90 GDK_NOTE (MISC, g_print ("... SetWindowPos(%p,NULL,%d,%d,%d,%d,"
91 "NOACTIVATE|NOZORDER)\n",
92 GDK_WINDOW_HWND (window),
93 window->x + window->parent->abs_x, window->y + window->parent->abs_y,
96 API_CALL (SetWindowPos, (GDK_WINDOW_HWND (window), NULL,
97 window->x + window->parent->abs_x, window->y + window->parent->abs_y,
99 SWP_NOACTIVATE | SWP_NOZORDER));
101 _gdk_win32_window_tmp_reset_bg (window, TRUE);
105 _gdk_win32_window_tmp_unset_bg (GdkWindow *window,
108 g_return_if_fail (GDK_IS_WINDOW (window));
110 if (window->input_only || window->destroyed ||
111 (window->window_type != GDK_WINDOW_ROOT &&
112 !GDK_WINDOW_IS_MAPPED (window)))
115 if (_gdk_window_has_impl (window) &&
116 GDK_WINDOW_IS_WIN32 (window) &&
117 window->window_type != GDK_WINDOW_ROOT &&
118 window->window_type != GDK_WINDOW_FOREIGN)
119 tmp_unset_bg (window);
125 for (l = window->children; l != NULL; l = l->next)
126 _gdk_win32_window_tmp_unset_bg (l->data, TRUE);
131 tmp_unset_bg (GdkWindow *window)
133 GdkWindowImplWin32 *impl;
135 impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
141 tmp_reset_bg (GdkWindow *window)
143 GdkWindowImplWin32 *impl;
145 impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
151 _gdk_win32_window_tmp_unset_parent_bg (GdkWindow *window)
153 if (GDK_WINDOW_TYPE (window->parent) == GDK_WINDOW_ROOT)
156 window = _gdk_window_get_impl_window (window->parent);
157 _gdk_win32_window_tmp_unset_bg (window, FALSE);
161 _gdk_win32_window_tmp_reset_bg (GdkWindow *window,
164 g_return_if_fail (GDK_IS_WINDOW (window));
166 if (window->input_only || window->destroyed ||
167 (window->window_type != GDK_WINDOW_ROOT && !GDK_WINDOW_IS_MAPPED (window)))
170 if (_gdk_window_has_impl (window) &&
171 GDK_WINDOW_IS_WIN32 (window) &&
172 window->window_type != GDK_WINDOW_ROOT &&
173 window->window_type != GDK_WINDOW_FOREIGN)
175 tmp_reset_bg (window);
182 for (l = window->children; l != NULL; l = l->next)
183 _gdk_win32_window_tmp_reset_bg (l->data, TRUE);