forked from AuroraMiddleware/gtk
Enable RGBA windows on W32
Requires Vista and newer. * Create surfaces with cairo_win32_surface_create_with_format * Provide an rgba visual that can be distinguished from the system visual * Make rgba visual the best available visual * Enable alpha-transparency for all windows that we control * Check for appropriate cairo capabilities at configure time (W32 - 1.14.3 newer than 2015-04-14; others - 1.14.0) * Check for composition support before enabling CSDs * Re-enable transparency on WM_DWMCOMPOSITIONCHANGED Windows that were created while composition was enabled and that were CSDed as a result and will look ugly (thick black borders or no borders at all) once composition is disabled. If composition is enabled afterwards, they will return back to normal. This happens, for example, when RDP session is opened to a desktop where a GTK application is running. For W7/Vista windows will only re-gain transparency after the RDP session is closed. For W8 transparency will only be gone momentarily. Windows that were created while composition was disabled will not be CSDed automatically and will use SSD (WM decorations), while windows that are CSDed manually will get a thin square border. If composition is enabled afterwards, these windows will not change. This is most noticeable for system menus (popup menus are often generated on the fly, system menus are created once) and some dialogues (About dialogue, for example). https://bugzilla.gnome.org/show_bug.cgi?id=727316
This commit is contained in:
Руслан Ижбулатов
parent
5271106250
commit
d44921a152
15
configure.ac
15
configure.ac
@ -576,6 +576,21 @@ PKG_CHECK_MODULES(BASE_DEPENDENCIES,
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PKG_CHECK_MODULES(CAIRO_BACKEND, [$cairo_backends])
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# Remove this check once cairo_required_version reaches at least 1.14.4
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case $host_os in
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mingw*)
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PKG_CHECK_MODULES(CAIRO, [cairo >= cairo_required_version])
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AC_CHECK_LIB([cairo], [cairo_win32_surface_create_with_format],
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[AC_MSG_RESULT([found])],
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[AC_MSG_ERROR(
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[cairo_win32_surface_create_with_format is not found in cairo library
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You need cairo version newer than 2015-04-14])])
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;;
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*)
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;;
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esac
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PKG_CHECK_MODULES(GMODULE, [gmodule-2.0])
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dnl ******************************************************
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@ -3171,6 +3171,10 @@ gdk_event_translate (MSG *msg,
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handle_display_change ();
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break;
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case WM_DWMCOMPOSITIONCHANGED:
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_gdk_win32_window_enable_transparency (window);
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break;
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case WM_DESTROYCLIPBOARD:
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if (!_ignore_destroy_clipboard)
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{
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@ -152,6 +152,9 @@ void _gdk_window_move_resize_child (GdkWindow *window,
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gint width,
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gint height);
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gboolean _gdk_win32_window_enable_transparency (GdkWindow *window);
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/* GdkWindowImpl methods */
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void _gdk_win32_window_scroll (GdkWindow *window,
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gint dx,
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@ -476,6 +479,7 @@ void _gdk_win32_window_delete_property (GdkWindow *window, GdkAtom property);
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/* Stray GdkWin32Screen members */
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GdkVisual *_gdk_win32_screen_get_system_visual (GdkScreen *screen);
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GdkVisual *_gdk_win32_screen_get_rgba_visual (GdkScreen *screen);
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gboolean _gdk_win32_screen_get_setting (GdkScreen *screen, const gchar *name, GValue *value);
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gint _gdk_win32_screen_visual_get_best_depth (GdkScreen *screen);
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GdkVisualType _gdk_win32_screen_visual_get_best_type (GdkScreen *screen);
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@ -156,14 +156,6 @@ gdk_win32_screen_get_monitor_geometry (GdkScreen *screen,
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*dest = _gdk_monitors[num_monitor].rect;
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}
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static GdkVisual *
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gdk_win32_screen_get_rgba_visual (GdkScreen *screen)
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{
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g_return_val_if_fail (screen == _gdk_screen, NULL);
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return NULL;
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}
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static gint
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gdk_win32_screen_get_number (GdkScreen *screen)
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{
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@ -245,7 +237,7 @@ gdk_win32_screen_class_init (GdkWin32ScreenClass *klass)
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screen_class->get_monitor_geometry = gdk_win32_screen_get_monitor_geometry;
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screen_class->get_monitor_workarea = gdk_win32_screen_get_monitor_geometry;
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screen_class->get_system_visual = _gdk_win32_screen_get_system_visual;
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screen_class->get_rgba_visual = gdk_win32_screen_get_rgba_visual;
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screen_class->get_rgba_visual = _gdk_win32_screen_get_rgba_visual;
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screen_class->is_composited = gdk_win32_screen_is_composited;
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screen_class->make_display_name = gdk_win32_screen_make_display_name;
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screen_class->get_active_window = gdk_win32_screen_get_active_window;
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@ -36,14 +36,16 @@ static void gdk_visual_decompose_mask (gulong mask,
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gint *prec);
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static GdkVisual *system_visual = NULL;
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static GdkVisual *rgba_visual = NULL;
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static gint available_depths[1];
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static GdkVisualType available_types[1];
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void
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_gdk_visual_init (GdkScreen *screen)
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static void
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_gdk_visual_init_internal (GdkScreen *screen, gboolean is_rgba)
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{
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GdkVisual *visual;
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struct
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{
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BITMAPINFOHEADER bi;
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@ -60,14 +62,14 @@ _gdk_visual_init (GdkScreen *screen)
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gint bitspixel = GetDeviceCaps (_gdk_display_hdc, BITSPIXEL);
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gint map_entries = 0;
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system_visual = g_object_new (GDK_TYPE_VISUAL, NULL);
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system_visual->screen = screen;
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visual = g_object_new (GDK_TYPE_VISUAL, NULL);
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visual->screen = screen;
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if (rastercaps & RC_PALETTE)
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{
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const int sizepalette = GetDeviceCaps (_gdk_display_hdc, SIZEPALETTE);
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gchar *max_colors = getenv ("GDK_WIN32_MAX_COLORS");
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system_visual->type = GDK_VISUAL_PSEUDO_COLOR;
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visual->type = GDK_VISUAL_PSEUDO_COLOR;
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g_assert (sizepalette == 256);
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@ -81,7 +83,7 @@ _gdk_visual_init (GdkScreen *screen)
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if (map_entries < 32)
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{
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map_entries = 16;
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system_visual->type = GDK_VISUAL_STATIC_COLOR;
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visual->type = GDK_VISUAL_STATIC_COLOR;
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bitspixel = 4;
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}
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else if (map_entries < 64)
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@ -108,27 +110,27 @@ _gdk_visual_init (GdkScreen *screen)
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else if (bitspixel == 1 && numcolors == 16)
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{
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bitspixel = 4;
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system_visual->type = GDK_VISUAL_STATIC_COLOR;
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visual->type = GDK_VISUAL_STATIC_COLOR;
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map_entries = 16;
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}
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else if (bitspixel == 1)
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{
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system_visual->type = GDK_VISUAL_STATIC_GRAY;
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visual->type = GDK_VISUAL_STATIC_GRAY;
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map_entries = 2;
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}
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else if (bitspixel == 4)
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{
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system_visual->type = GDK_VISUAL_STATIC_COLOR;
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visual->type = GDK_VISUAL_STATIC_COLOR;
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map_entries = 16;
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}
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else if (bitspixel == 8)
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{
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system_visual->type = GDK_VISUAL_STATIC_COLOR;
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visual->type = GDK_VISUAL_STATIC_COLOR;
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map_entries = 256;
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}
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else if (bitspixel == 16)
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{
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system_visual->type = GDK_VISUAL_TRUE_COLOR;
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visual->type = GDK_VISUAL_TRUE_COLOR;
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#if 1
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/* This code by Mike Enright,
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* see http://www.users.cts.com/sd/m/menright/display.html
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@ -154,9 +156,9 @@ _gdk_visual_init (GdkScreen *screen)
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{
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/* It's 555 */
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bitspixel = 15;
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system_visual->red_mask = 0x00007C00;
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system_visual->green_mask = 0x000003E0;
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system_visual->blue_mask = 0x0000001F;
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visual->red_mask = 0x00007C00;
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visual->green_mask = 0x000003E0;
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visual->blue_mask = 0x0000001F;
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}
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else
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{
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@ -175,74 +177,87 @@ _gdk_visual_init (GdkScreen *screen)
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allmasks/=2;
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}
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bitspixel = k;
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system_visual->red_mask = bmi.u.fields[0];
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system_visual->green_mask = bmi.u.fields[1];
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system_visual->blue_mask = bmi.u.fields[2];
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visual->red_mask = bmi.u.fields[0];
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visual->green_mask = bmi.u.fields[1];
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visual->blue_mask = bmi.u.fields[2];
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}
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#else
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/* Old, incorrect (but still working) code. */
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#if 0
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system_visual->red_mask = 0x0000F800;
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system_visual->green_mask = 0x000007E0;
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system_visual->blue_mask = 0x0000001F;
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visual->red_mask = 0x0000F800;
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visual->green_mask = 0x000007E0;
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visual->blue_mask = 0x0000001F;
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#else
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system_visual->red_mask = 0x00007C00;
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system_visual->green_mask = 0x000003E0;
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system_visual->blue_mask = 0x0000001F;
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visual->red_mask = 0x00007C00;
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visual->green_mask = 0x000003E0;
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visual->blue_mask = 0x0000001F;
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#endif
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#endif
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}
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else if (bitspixel == 24 || bitspixel == 32)
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{
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bitspixel = 24;
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system_visual->type = GDK_VISUAL_TRUE_COLOR;
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system_visual->red_mask = 0x00FF0000;
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system_visual->green_mask = 0x0000FF00;
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system_visual->blue_mask = 0x000000FF;
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if (!is_rgba)
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bitspixel = 24;
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visual->type = GDK_VISUAL_TRUE_COLOR;
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visual->red_mask = 0x00FF0000;
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visual->green_mask = 0x0000FF00;
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visual->blue_mask = 0x000000FF;
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}
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else
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g_error ("_gdk_visual_init: unsupported BITSPIXEL: %d\n", bitspixel);
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system_visual->depth = bitspixel;
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system_visual->byte_order = GDK_LSB_FIRST;
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system_visual->bits_per_rgb = 42; /* Not used? */
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visual->depth = bitspixel;
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visual->byte_order = GDK_LSB_FIRST;
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visual->bits_per_rgb = 42; /* Not used? */
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if ((system_visual->type == GDK_VISUAL_TRUE_COLOR) ||
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(system_visual->type == GDK_VISUAL_DIRECT_COLOR))
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if ((visual->type == GDK_VISUAL_TRUE_COLOR) ||
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(visual->type == GDK_VISUAL_DIRECT_COLOR))
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{
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gdk_visual_decompose_mask (system_visual->red_mask,
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&system_visual->red_shift,
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&system_visual->red_prec);
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gdk_visual_decompose_mask (visual->red_mask,
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&visual->red_shift,
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&visual->red_prec);
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gdk_visual_decompose_mask (system_visual->green_mask,
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&system_visual->green_shift,
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&system_visual->green_prec);
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gdk_visual_decompose_mask (visual->green_mask,
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&visual->green_shift,
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&visual->green_prec);
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gdk_visual_decompose_mask (system_visual->blue_mask,
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&system_visual->blue_shift,
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&system_visual->blue_prec);
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map_entries = 1 << (MAX (system_visual->red_prec,
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MAX (system_visual->green_prec,
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system_visual->blue_prec)));
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gdk_visual_decompose_mask (visual->blue_mask,
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&visual->blue_shift,
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&visual->blue_prec);
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map_entries = 1 << (MAX (visual->red_prec,
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MAX (visual->green_prec,
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visual->blue_prec)));
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}
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else
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{
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system_visual->red_mask = 0;
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system_visual->red_shift = 0;
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system_visual->red_prec = 0;
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visual->red_mask = 0;
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visual->red_shift = 0;
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visual->red_prec = 0;
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system_visual->green_mask = 0;
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system_visual->green_shift = 0;
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system_visual->green_prec = 0;
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visual->green_mask = 0;
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visual->green_shift = 0;
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visual->green_prec = 0;
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system_visual->blue_mask = 0;
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system_visual->blue_shift = 0;
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system_visual->blue_prec = 0;
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visual->blue_mask = 0;
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visual->blue_shift = 0;
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visual->blue_prec = 0;
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}
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system_visual->colormap_size = map_entries;
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visual->colormap_size = map_entries;
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available_depths[0] = system_visual->depth;
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available_types[0] = system_visual->type;
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available_depths[0] = visual->depth;
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available_types[0] = visual->type;
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if (is_rgba)
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rgba_visual = visual;
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else
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system_visual = visual;
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}
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void
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_gdk_visual_init (GdkScreen *screen)
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{
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_gdk_visual_init_internal (screen, FALSE);
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_gdk_visual_init_internal (screen, TRUE);
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}
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gint
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@ -263,16 +278,24 @@ _gdk_win32_screen_get_system_visual (GdkScreen *screen)
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return system_visual;
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}
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GdkVisual *
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_gdk_win32_screen_get_rgba_visual (GdkScreen *screen)
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{
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return rgba_visual;
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}
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GdkVisual*
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_gdk_win32_screen_visual_get_best (GdkScreen *screen)
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{
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return ((GdkVisual*) system_visual);
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return ((GdkVisual*) rgba_visual);
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}
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GdkVisual*
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_gdk_win32_screen_visual_get_best_with_depth (GdkScreen *screen, gint depth)
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{
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if (depth == system_visual->depth)
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if (depth == rgba_visual->depth)
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return (GdkVisual*) rgba_visual;
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else if (depth == system_visual->depth)
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return (GdkVisual*) system_visual;
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else
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return NULL;
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@ -281,7 +304,9 @@ _gdk_win32_screen_visual_get_best_with_depth (GdkScreen *screen, gint depth)
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GdkVisual*
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_gdk_win32_screen_visual_get_best_with_type (GdkScreen *screen, GdkVisualType visual_type)
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{
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if (visual_type == system_visual->type)
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if (visual_type == rgba_visual->type)
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return rgba_visual;
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else if (visual_type == system_visual->type)
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return system_visual;
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else
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return NULL;
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@ -292,7 +317,9 @@ _gdk_win32_screen_visual_get_best_with_both (GdkScreen *screen,
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gint depth,
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GdkVisualType visual_type)
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{
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if ((depth == system_visual->depth) && (visual_type == system_visual->type))
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if ((depth == rgba_visual->depth) && (visual_type == rgba_visual->type))
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return rgba_visual;
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else if ((depth == system_visual->depth) && (visual_type == system_visual->type))
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return system_visual;
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else
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return NULL;
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@ -319,7 +346,12 @@ _gdk_win32_screen_query_visual_types (GdkScreen *screen,
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GList*
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_gdk_win32_screen_list_visuals (GdkScreen *screen)
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{
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return g_list_append (NULL, (gpointer) system_visual);
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GList *result = NULL;
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result = g_list_append (result, (gpointer) rgba_visual);
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result = g_list_append (result, (gpointer) system_visual);
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return result;
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}
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static void
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@ -41,6 +41,7 @@
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#include "gdkglcontext-win32.h"
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#include <cairo-win32.h>
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#include <dwmapi.h>
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static void gdk_window_impl_win32_init (GdkWindowImplWin32 *window);
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static void gdk_window_impl_win32_class_init (GdkWindowImplWin32Class *klass);
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@ -245,6 +246,51 @@ _gdk_windowing_window_init (GdkScreen *screen)
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GDK_NOTE (MISC, g_print ("_gdk_root=%p\n", GDK_WINDOW_HWND (_gdk_root)));
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}
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gboolean
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_gdk_win32_window_enable_transparency (GdkWindow *window)
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{
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DWM_BLURBEHIND blur_behind;
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HRGN empty_region;
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HRESULT call_result;
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HWND parent, thiswindow;
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if (window == NULL || GDK_WINDOW_HWND (window) == NULL)
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return FALSE;
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if (!gdk_screen_is_composited (gdk_window_get_screen (window)))
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return FALSE;
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if (window == _gdk_root)
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return FALSE;
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thiswindow = GDK_WINDOW_HWND (window);
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/* Blurbehind only works on toplevel windows */
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parent = GetAncestor (thiswindow, GA_PARENT);
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if (!(GetWindowLong (thiswindow, GWL_STYLE) & WS_POPUP) &&
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(parent == NULL || parent != GetDesktopWindow ()))
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return FALSE;
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empty_region = CreateRectRgn (0, 0, -1, -1);
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if (empty_region == NULL)
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return FALSE;
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memset (&blur_behind, 0, sizeof (blur_behind));
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blur_behind.dwFlags = DWM_BB_ENABLE | DWM_BB_BLURREGION;
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blur_behind.hRgnBlur = empty_region;
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blur_behind.fEnable = TRUE;
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call_result = DwmEnableBlurBehindWindow (thiswindow, &blur_behind);
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if (!SUCCEEDED (call_result))
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g_warning ("%s: %s (%p) failed: %" G_GINT32_MODIFIER "x",
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G_STRLOC, "DwmEnableBlurBehindWindow", thiswindow, (guint32) call_result);
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DeleteObject (empty_region);
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return SUCCEEDED (call_result);
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}
|
||||
|
||||
static const gchar *
|
||||
get_default_title (void)
|
||||
{
|
||||
@ -490,7 +536,8 @@ _gdk_win32_display_create_window_impl (GdkDisplay *display,
|
||||
window->impl = GDK_WINDOW_IMPL (impl);
|
||||
|
||||
if (attributes_mask & GDK_WA_VISUAL)
|
||||
g_assert (gdk_screen_get_system_visual (screen) == attributes->visual);
|
||||
g_assert ((gdk_screen_get_system_visual (screen) == attributes->visual) ||
|
||||
(gdk_screen_get_rgba_visual (screen) == attributes->visual));
|
||||
|
||||
impl->override_redirect = override_redirect;
|
||||
|
||||
@ -688,6 +735,8 @@ _gdk_win32_display_create_window_impl (GdkDisplay *display,
|
||||
|
||||
if (attributes_mask & GDK_WA_CURSOR)
|
||||
gdk_window_set_cursor (window, attributes->cursor);
|
||||
|
||||
_gdk_win32_window_enable_transparency (window);
|
||||
}
|
||||
|
||||
GdkWindow *
|
||||
@ -3347,7 +3396,7 @@ gdk_win32_ref_cairo_surface (GdkWindow *window)
|
||||
if (!hdc)
|
||||
return NULL;
|
||||
|
||||
impl->cairo_surface = cairo_win32_surface_create (hdc);
|
||||
impl->cairo_surface = cairo_win32_surface_create_with_format (hdc, CAIRO_FORMAT_ARGB32);
|
||||
|
||||
cairo_surface_set_user_data (impl->cairo_surface, &gdk_win32_cairo_key,
|
||||
impl, gdk_win32_cairo_surface_destroy);
|
||||
|
||||
@ -4043,6 +4043,9 @@ gtk_window_supports_client_shadow (GtkWindow *window)
|
||||
|
||||
screen = gtk_widget_get_screen (widget);
|
||||
|
||||
if (!gdk_screen_is_composited (screen))
|
||||
return FALSE;
|
||||
|
||||
/* We need a visual with alpha */
|
||||
visual = gdk_screen_get_rgba_visual (screen);
|
||||
if (!visual)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user