+/* Marco interface for talking to GTK+ UI module */

+

+/*

+ * Copyright (C) 2002 Havoc Pennington

+ * stock icon code Copyright (C) 2002 Jorn Baayen <[email protected]>

+ *

+ * This program is free software; you can redistribute it and/or

+ * modify it under the terms of the GNU General Public License as

+ * published by the Free Software Foundation; either version 2 of the

+ * License, or (at your option) any later version.

+ *

+ * This program 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

+ * General Public License for more details.

+ *

+ * You should have received a copy of the GNU General Public License

+ * along with this program; if not, write to the Free Software

+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA

+ * 02111-1307, USA.

+ */

+

+#include "prefs.h"

+#include "ui.h"

+#include "frames.h"

+#include "util.h"

+#include "menu.h"

+#include "core.h"

+#include "theme.h"

+

+#include <string.h>

+#include <stdlib.h>

+

+static void meta_ui_accelerator_parse(const char* accel, guint* keysym, guint* keycode, GdkModifierType* keymask);

+

+struct _MetaUI {

+ Display* xdisplay;

+ Screen* xscreen;

+ MetaFrames* frames;

+

+ /* For double-click tracking */

+ guint button_click_number;

+ Window button_click_window;

+ int button_click_x;

+ int button_click_y;

+ guint32 button_click_time;

+};

+

+void meta_ui_init(int* argc, char*** argv)

+{

+ if (!gtk_init_check (argc, argv))

+ {

+ meta_fatal ("Unable to open X display %s\n", XDisplayName (NULL));

+ }

+}

+

+Display* meta_ui_get_display(void)

+{

+ return GDK_DISPLAY_XDISPLAY(gdk_display_get_default());

+}

+

+/* We do some of our event handling in frames.c, which expects

+ * GDK events delivered by GTK+. However, since the transition to

+ * client side windows, we can't let GDK see button events, since the

+ * client-side tracking of implicit and explicit grabs it does will

+ * get confused by our direct use of X grabs in the core code.

+ *

+ * So we do a very minimal GDK => GTK event conversion here and send on the

+ * events we care about, and then filter them out so they don't go

+ * through the normal GDK event handling.

+ *

+ * To reduce the amount of code, the only events fields filled out

+ * below are the ones that frames.c uses. If frames.c is modified to

+ * use more fields, more fields need to be filled out below.

+ */

+

+static gboolean

+maybe_redirect_mouse_event (XEvent *xevent)

+{

+ GdkDisplay *gdisplay;

+ MetaUI *ui;

+ GdkEvent gevent;

+ GdkWindow *gdk_window;

+ Window window;

+

+ switch (xevent->type)

+ {

+ case ButtonPress:

+ case ButtonRelease:

+ window = xevent->xbutton.window;

+ break;

+ case MotionNotify:

+ window = xevent->xmotion.window;

+ break;

+ case EnterNotify:

+ case LeaveNotify:

+ window = xevent->xcrossing.window;

+ break;

+ default:

+ return FALSE;

+ }

+

+ gdisplay = gdk_x11_lookup_xdisplay (xevent->xany.display);

+ ui = g_object_get_data (G_OBJECT (gdisplay), "meta-ui");

+ if (!ui)

+ return FALSE;

+

+ gdk_window = gdk_window_lookup_for_display (gdisplay, window);

+ if (gdk_window == NULL)

+ return FALSE;

+

+ /* If GDK already thinks it has a grab, we better let it see events; this

+ * is the menu-navigation case and events need to get sent to the appropriate

+ * (client-side) subwindow for individual menu items.

+ */

+ if (gdk_display_pointer_is_grabbed (gdisplay))

+ return FALSE;

+

+ memset (&gevent, 0, sizeof (gevent));

+

+ switch (xevent->type)

+ {

+ case ButtonPress:

+ case ButtonRelease:

+ if (xevent->type == ButtonPress)

+ {

+ GtkSettings *settings = gtk_settings_get_default ();

+ int double_click_time;

+ int double_click_distance;

+

+ g_object_get (settings,

+ "gtk-double-click-time", &double_click_time,

+ "gtk-double-click-distance", &double_click_distance,

+ NULL);

+

+ if (xevent->xbutton.button == ui->button_click_number &&

+ xevent->xbutton.window == ui->button_click_window &&

+ xevent->xbutton.time < ui->button_click_time + double_click_time &&

+ ABS (xevent->xbutton.x - ui->button_click_x) <= double_click_distance &&

+ ABS (xevent->xbutton.y - ui->button_click_y) <= double_click_distance)

+ {

+ gevent.button.type = GDK_2BUTTON_PRESS;

+

+ ui->button_click_number = 0;

+ }

+ else

+ {

+ gevent.button.type = GDK_BUTTON_PRESS;

+ ui->button_click_number = xevent->xbutton.button;

+ ui->button_click_window = xevent->xbutton.window;

+ ui->button_click_time = xevent->xbutton.time;

+ ui->button_click_x = xevent->xbutton.x;

+ ui->button_click_y = xevent->xbutton.y;

+ }

+ }

+ else

+ {

+ gevent.button.type = GDK_BUTTON_RELEASE;

+ }

+

+ gevent.button.window = gdk_window;

+ gevent.button.button = xevent->xbutton.button;

+ gevent.button.time = xevent->xbutton.time;

+ gevent.button.x = xevent->xbutton.x;

+ gevent.button.y = xevent->xbutton.y;

+ gevent.button.x_root = xevent->xbutton.x_root;

+ gevent.button.y_root = xevent->xbutton.y_root;

+

+ break;

+ case MotionNotify:

+ gevent.motion.type = GDK_MOTION_NOTIFY;

+ gevent.motion.window = gdk_window;

+ break;

+ case EnterNotify:

+ case LeaveNotify:

+ gevent.crossing.type = xevent->type == EnterNotify ? GDK_ENTER_NOTIFY : GDK_LEAVE_NOTIFY;

+ gevent.crossing.window = gdk_window;

+ gevent.crossing.x = xevent->xcrossing.x;

+ gevent.crossing.y = xevent->xcrossing.y;

+ break;

+ default:

+ g_assert_not_reached ();

+ break;

+ }

+

+ /* If we've gotten here, we've filled in the gdk_event and should send it on */

+ gtk_main_do_event (&gevent);

+

+ return TRUE;

+}

+

+typedef struct _EventFunc EventFunc;

+

+struct _EventFunc

+{

+ MetaEventFunc func;

+ gpointer data;

+};

+

+static EventFunc *ef = NULL;

+

+static GdkFilterReturn

+filter_func (GdkXEvent *xevent,

+ GdkEvent *event,

+ gpointer data)

+{

+ g_return_val_if_fail (ef != NULL, GDK_FILTER_CONTINUE);

+

+ if ((* ef->func) (xevent, ef->data) ||

+ maybe_redirect_mouse_event (xevent))

+ return GDK_FILTER_REMOVE;

+ else

+ return GDK_FILTER_CONTINUE;

+}

+

+void

+meta_ui_add_event_func (Display *xdisplay,

+ MetaEventFunc func,

+ gpointer data)

+{

+ g_return_if_fail (ef == NULL);

+

+ ef = g_new (EventFunc, 1);

+ ef->func = func;

+ ef->data = data;

+

+ gdk_window_add_filter (NULL, filter_func, ef);

+}

+

+/* removal is by data due to proxy function */

+void

+meta_ui_remove_event_func (Display *xdisplay,

+ MetaEventFunc func,

+ gpointer data)

+{

+ g_return_if_fail (ef != NULL);

+

+ gdk_window_remove_filter (NULL, filter_func, ef);

+

+ g_free (ef);

+ ef = NULL;

+}

+

+MetaUI*

+meta_ui_new (Display *xdisplay,

+ Screen *screen)

+{

+ GdkDisplay *gdisplay;

+ MetaUI *ui;

+

+ ui = g_new0 (MetaUI, 1);

+ ui->xdisplay = xdisplay;

+ ui->xscreen = screen;

+

+ gdisplay = gdk_x11_lookup_xdisplay (xdisplay);

+ g_assert (gdisplay == gdk_display_get_default ());

+

+ g_assert (xdisplay == GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()));

+ ui->frames = meta_frames_new (XScreenNumberOfScreen (screen));

+ gtk_widget_realize (GTK_WIDGET (ui->frames));

+

+ g_object_set_data (G_OBJECT (gdisplay), "meta-ui", ui);

+

+ return ui;

+}

+

+void

+meta_ui_free (MetaUI *ui)

+{

+ GdkDisplay *gdisplay;

+

+ gtk_widget_destroy (GTK_WIDGET (ui->frames));

+

+ gdisplay = gdk_x11_lookup_xdisplay (ui->xdisplay);

+ g_object_set_data (G_OBJECT (gdisplay), "meta-ui", NULL);

+

+ g_free (ui);

+}

+

+void

+meta_ui_get_frame_geometry (MetaUI *ui,

+ Window frame_xwindow,

+ int *top_height, int *bottom_height,

+ int *left_width, int *right_width)

+{

+ meta_frames_get_geometry (ui->frames, frame_xwindow,

+ top_height, bottom_height,

+ left_width, right_width);

+}

+

+Window

+meta_ui_create_frame_window (MetaUI *ui,

+ Display *xdisplay,

+ Visual *xvisual,

+ gint x,

+ gint y,

+ gint width,

+ gint height,

+ gint screen_no)

+{

+ GdkDisplay *display = gdk_x11_lookup_xdisplay (xdisplay);

+ GdkScreen *screen = gdk_display_get_screen (display, screen_no);

+ GdkWindowAttr attrs;

+ gint attributes_mask;

+ GdkWindow *window;

+ GdkVisual *visual;

+ GdkColormap *cmap = gdk_screen_get_default_colormap (screen);

+

+ /* Default depth/visual handles clients with weird visuals; they can

+ * always be children of the root depth/visual obviously, but

+ * e.g. DRI games can't be children of a parent that has the same

+ * visual as the client.

+ */

+ if (!xvisual)

+ visual = gdk_screen_get_system_visual (screen);

+ else

+ {

+ visual = gdk_x11_screen_lookup_visual (screen,

+ XVisualIDFromVisual (xvisual));

+ cmap = gdk_colormap_new (visual, FALSE);

+ }

+

+ attrs.title = NULL;

+

+ /* frame.c is going to replace the event mask immediately, but

+ * we still have to set it here to let GDK know what it is.

+ */

+ attrs.event_mask =

+ GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |

+ GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK |

+ GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK | GDK_FOCUS_CHANGE_MASK;

+ attrs.x = x;

+ attrs.y = y;

+ attrs.wclass = GDK_INPUT_OUTPUT;

+ attrs.visual = visual;

+ attrs.colormap = cmap;

+ attrs.window_type = GDK_WINDOW_CHILD;

+ attrs.cursor = NULL;

+ attrs.wmclass_name = NULL;

+ attrs.wmclass_class = NULL;

+ attrs.override_redirect = FALSE;

+

+ attrs.width = width;

+ attrs.height = height;

+

+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;

+

+ window =

+ gdk_window_new (gdk_screen_get_root_window(screen),

+ &attrs, attributes_mask);

+

+ gdk_window_resize (window, width, height);

+

+ meta_frames_manage_window (ui->frames, GDK_WINDOW_XID (window), window);

+

+ return GDK_WINDOW_XID (window);

+}

+

+void

+meta_ui_destroy_frame_window (MetaUI *ui,

+ Window xwindow)

+{

+ meta_frames_unmanage_window (ui->frames, xwindow);

+}

+

+void

+meta_ui_move_resize_frame (MetaUI *ui,

+ Window frame,

+ int x,

+ int y,

+ int width,

+ int height)

+{

+ meta_frames_move_resize_frame (ui->frames, frame, x, y, width, height);

+}

+

+void

+meta_ui_map_frame (MetaUI *ui,

+ Window xwindow)

+{

+ GdkWindow *window;

+

+ window = gdk_xid_table_lookup (xwindow);

+

+ if (window)

+ gdk_window_show_unraised (window);

+}

+

+void

+meta_ui_unmap_frame (MetaUI *ui,

+ Window xwindow)

+{

+ GdkWindow *window;

+

+ window = gdk_xid_table_lookup (xwindow);

+

+ if (window)

+ gdk_window_hide (window);

+}

+

+void

+meta_ui_unflicker_frame_bg (MetaUI *ui,

+ Window xwindow,

+ int target_width,

+ int target_height)

+{

+ meta_frames_unflicker_bg (ui->frames, xwindow,

+ target_width, target_height);

+}

+

+void

+meta_ui_repaint_frame (MetaUI *ui,

+ Window xwindow)

+{

+ meta_frames_repaint_frame (ui->frames, xwindow);

+}

+

+void

+meta_ui_reset_frame_bg (MetaUI *ui,

+ Window xwindow)

+{

+ meta_frames_reset_bg (ui->frames, xwindow);

+}

+

+void

+meta_ui_apply_frame_shape (MetaUI *ui,

+ Window xwindow,

+ int new_window_width,

+ int new_window_height,

+ gboolean window_has_shape)

+{

+ meta_frames_apply_shapes (ui->frames, xwindow,

+ new_window_width, new_window_height,

+ window_has_shape);

+}

+

+void

+meta_ui_queue_frame_draw (MetaUI *ui,

+ Window xwindow)

+{

+ meta_frames_queue_draw (ui->frames, xwindow);

+}

+

+

+void

+meta_ui_set_frame_title (MetaUI *ui,

+ Window xwindow,

+ const char *title)

+{

+ meta_frames_set_title (ui->frames, xwindow, title);

+}

+

+MetaWindowMenu*

+meta_ui_window_menu_new (MetaUI *ui,

+ Window client_xwindow,

+ MetaMenuOp ops,

+ MetaMenuOp insensitive,

+ unsigned long active_workspace,

+ int n_workspaces,

+ MetaWindowMenuFunc func,

+ gpointer data)

+{

+ return meta_window_menu_new (ui->frames,

+ ops, insensitive,

+ client_xwindow,

+ active_workspace,

+ n_workspaces,

+ func, data);

+}

+

+void

+meta_ui_window_menu_popup (MetaWindowMenu *menu,

+ int root_x,

+ int root_y,

+ int button,

+ guint32 timestamp)

+{

+ meta_window_menu_popup (menu, root_x, root_y, button, timestamp);

+}

+

+void

+meta_ui_window_menu_free (MetaWindowMenu *menu)

+{

+ meta_window_menu_free (menu);

+}

+

+struct _MetaImageWindow

+{

+ GtkWidget *window;

+ GdkPixmap *pixmap;

+};

+

+MetaImageWindow*

+meta_image_window_new (Display *xdisplay,

+ int screen_number,

+ int max_width,

+ int max_height)

+{

+ MetaImageWindow *iw;

+ GdkDisplay *gdisplay;

+ GdkScreen *gscreen;

+

+ iw = g_new (MetaImageWindow, 1);

+ iw->window = gtk_window_new (GTK_WINDOW_POPUP);

+

+ gdisplay = gdk_x11_lookup_xdisplay (xdisplay);

+ gscreen = gdk_display_get_screen (gdisplay, screen_number);

+

+ gtk_window_set_screen (GTK_WINDOW (iw->window), gscreen);

+

+ gtk_widget_realize (iw->window);

+ iw->pixmap = gdk_pixmap_new (iw->window->window,

+ max_width, max_height,

+ -1);

+

+ gtk_widget_set_size_request (iw->window, 1, 1);

+ gtk_widget_set_double_buffered (iw->window, FALSE);

+ gtk_widget_set_app_paintable (iw->window, TRUE);

+

+ return iw;

+}

+

+void

+meta_image_window_free (MetaImageWindow *iw)

+{

+ gtk_widget_destroy (iw->window);

+ g_object_unref (G_OBJECT (iw->pixmap));

+ g_free (iw);

+}

+

+void

+meta_image_window_set_showing (MetaImageWindow *iw,

+ gboolean showing)

+{

+ if (showing)

+ gtk_widget_show_all (iw->window);

+ else

+ {

+ gtk_widget_hide (iw->window);

+ meta_core_increment_event_serial (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()));

+ }

+}

+

+void

+meta_image_window_set (MetaImageWindow *iw,

+ GdkPixbuf *pixbuf,

+ int x,

+ int y)

+{

+ cairo_t *cr;

+

+ /* We use a back pixmap to avoid having to handle exposes, because

+ * it's really too slow for large clients being minimized, etc.

+ * and this way flicker is genuinely zero.

+ */

+

+ gdk_draw_pixbuf (iw->pixmap,

+ iw->window->style->black_gc,

+ pixbuf,

+ 0, 0,

+ 0, 0,

+ gdk_pixbuf_get_width (pixbuf),

+ gdk_pixbuf_get_height (pixbuf),

+ GDK_RGB_DITHER_NORMAL,

+ 0, 0);

+ cr = gdk_cairo_create (iw->pixmap);

+ gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);

+ cairo_paint (cr);

+ cairo_destroy (cr);

+

+ gdk_window_set_back_pixmap (iw->window->window,

+ iw->pixmap,

+ FALSE);

+

+ gdk_window_move_resize (iw->window->window,

+ x, y,

+ gdk_pixbuf_get_width (pixbuf),

+ gdk_pixbuf_get_height (pixbuf));

+

+ gdk_window_clear (iw->window->window);

+}

+

+static GdkColormap*

+get_cmap (GdkPixmap *pixmap)

+{

+ GdkColormap *cmap;

+

+ cmap = gdk_drawable_get_colormap (pixmap);

+ if (cmap)

+ g_object_ref (G_OBJECT (cmap));

+

+ if (cmap == NULL)

+ {

+ if (gdk_drawable_get_depth (pixmap) == 1)

+ {

+ meta_verbose ("Using NULL colormap for snapshotting bitmap\n");

+ cmap = NULL;

+ }

+ else

+ {

+ meta_verbose ("Using system cmap to snapshot pixmap\n");

+ cmap = gdk_screen_get_system_colormap (gdk_drawable_get_screen (pixmap));

+

+ g_object_ref (G_OBJECT (cmap));

+ }

+ }

+

+ /* Be sure we aren't going to blow up due to visual mismatch */

+ if (cmap &&

+ (gdk_colormap_get_visual (cmap)->depth !=

+ gdk_drawable_get_depth (pixmap)))

+ {

+ cmap = NULL;

+ meta_verbose ("Switching back to NULL cmap because of depth mismatch\n");

+ }

+

+ return cmap;

+}

+

+GdkPixbuf*

+meta_gdk_pixbuf_get_from_window (GdkPixbuf *dest,

+ Window xwindow,

+ int src_x,

+ int src_y,

+ int dest_x,

+ int dest_y,

+ int width,

+ int height)

+{

+ GdkDrawable *drawable;

+ GdkPixbuf *retval;

+ GdkColormap *cmap;

+

+ retval = NULL;

+

+ drawable = gdk_xid_table_lookup (xwindow);

+

+ if (drawable)

+ g_object_ref (G_OBJECT (drawable));

+ else

+ drawable = gdk_window_foreign_new (xwindow);

+

+ cmap = get_cmap (drawable);

+

+ retval = gdk_pixbuf_get_from_drawable (dest,

+ drawable,

+ cmap,

+ src_x, src_y,

+ dest_x, dest_y,

+ width, height);

+

+ if (cmap)

+ g_object_unref (G_OBJECT (cmap));

+ g_object_unref (G_OBJECT (drawable));

+

+ return retval;

+}

+

+GdkPixbuf*

+meta_gdk_pixbuf_get_from_pixmap (GdkPixbuf *dest,

+ Pixmap xpixmap,

+ int src_x,

+ int src_y,

+ int dest_x,

+ int dest_y,

+ int width,

+ int height)

+{

+ GdkDrawable *drawable;

+ GdkPixbuf *retval;

+ GdkColormap *cmap;

+

+ retval = NULL;

+ cmap = NULL;

+

+ drawable = gdk_xid_table_lookup (xpixmap);

+

+ if (drawable)

+ g_object_ref (G_OBJECT (drawable));

+ else

+ drawable = gdk_pixmap_foreign_new (xpixmap);

+

+ if (drawable)

+ {

+ cmap = get_cmap (drawable);

+

+ retval = gdk_pixbuf_get_from_drawable (dest,

+ drawable,

+ cmap,

+ src_x, src_y,

+ dest_x, dest_y,

+ width, height);

+ }

+ if (cmap)

+ g_object_unref (G_OBJECT (cmap));

+ if (drawable)

+ g_object_unref (G_OBJECT (drawable));

+

+ return retval;

+}

+

+void

+meta_ui_push_delay_exposes (MetaUI *ui)

+{

+ meta_frames_push_delay_exposes (ui->frames);

+}

+

+void

+meta_ui_pop_delay_exposes (MetaUI *ui)

+{

+ meta_frames_pop_delay_exposes (ui->frames);

+}

+

+GdkPixbuf*

+meta_ui_get_default_window_icon (MetaUI *ui)

+{

+ static GdkPixbuf *default_icon = NULL;

+

+ if (default_icon == NULL)

+ {

+ GtkIconTheme *theme;

+ gboolean icon_exists;

+

+ theme = gtk_icon_theme_get_default ();

+

+ icon_exists = gtk_icon_theme_has_icon (theme, META_DEFAULT_ICON_NAME);

+

+ if (icon_exists)

+ default_icon = gtk_icon_theme_load_icon (theme,

+ META_DEFAULT_ICON_NAME,

+ META_ICON_WIDTH,

+ 0,

+ NULL);

+ else

+ default_icon = gtk_icon_theme_load_icon (theme,

+ "gtk-missing-image",

+ META_ICON_WIDTH,

+ 0,

+ NULL);

+

+ g_assert (default_icon);

+ }

+

+ g_object_ref (G_OBJECT (default_icon));

+

+ return default_icon;

+}

+

+GdkPixbuf*

+meta_ui_get_default_mini_icon (MetaUI *ui)

+{

+ static GdkPixbuf *default_icon = NULL;

+

+ if (default_icon == NULL)

+ {

+ GtkIconTheme *theme;

+ gboolean icon_exists;

+

+ theme = gtk_icon_theme_get_default ();

+

+ icon_exists = gtk_icon_theme_has_icon (theme, META_DEFAULT_ICON_NAME);

+

+ if (icon_exists)

+ default_icon = gtk_icon_theme_load_icon (theme,

+ META_DEFAULT_ICON_NAME,

+ META_MINI_ICON_WIDTH,

+ 0,

+ NULL);

+ else

+ default_icon = gtk_icon_theme_load_icon (theme,

+ "gtk-missing-image",

+ META_MINI_ICON_WIDTH,

+ 0,

+ NULL);

+

+ g_assert (default_icon);

+ }

+

+ g_object_ref (G_OBJECT (default_icon));

+

+ return default_icon;

+}

+

+gboolean

+meta_ui_window_should_not_cause_focus (Display *xdisplay,

+ Window xwindow)

+{

+ GdkWindow *window;

+

+ window = gdk_xid_table_lookup (xwindow);

+

+ /* we shouldn't cause focus if we're an override redirect

+ * toplevel which is not foreign

+ */

+ if (window && gdk_window_get_window_type (window) == GDK_WINDOW_TEMP)

+ return TRUE;

+ else

+ return FALSE;

+}

+

+char*

+meta_text_property_to_utf8 (Display *xdisplay,

+ const XTextProperty *prop)

+{

+ char **list;

+ int count;

+ char *retval;

+

+ list = NULL;

+

+ count = gdk_text_property_to_utf8_list (gdk_x11_xatom_to_atom (prop->encoding),

+ prop->format,

+ prop->value,

+ prop->nitems,

+ &list);

+

+ if (count == 0)

+ retval = NULL;

+ else

+ {

+ retval = list[0];

+ list[0] = g_strdup (""); /* something to free */

+ }

+

+ g_strfreev (list);

+

+ return retval;

+}

+

+void

+meta_ui_theme_get_frame_borders (MetaUI *ui,

+ MetaFrameType type,

+ MetaFrameFlags flags,

+ int *top_height,

+ int *bottom_height,

+ int *left_width,

+ int *right_width)

+{

+ int text_height;

+ PangoContext *context;

+ const PangoFontDescription *font_desc;

+ GtkStyle *default_style;

+

+ if (meta_ui_have_a_theme ())

+ {

+ context = gtk_widget_get_pango_context (GTK_WIDGET (ui->frames));

+ font_desc = meta_prefs_get_titlebar_font ();

+

+ if (!font_desc)

+ {

+ default_style = gtk_widget_get_default_style ();

+ font_desc = default_style->font_desc;

+ }

+

+ text_height = meta_pango_font_desc_get_text_height (font_desc, context);

+

+ meta_theme_get_frame_borders (meta_theme_get_current (),

+ type, text_height, flags,

+ top_height, bottom_height,

+ left_width, right_width);

+ }

+ else

+ {

+ *top_height = *bottom_height = *left_width = *right_width = 0;

+ }

+}

+

+void

+meta_ui_set_current_theme (const char *name,

+ gboolean force_reload)

+{

+ meta_theme_set_current (name, force_reload);

+ meta_invalidate_default_icons ();

+}

+

+gboolean

+meta_ui_have_a_theme (void)

+{

+ return meta_theme_get_current () != NULL;

+}

+

+static void

+meta_ui_accelerator_parse (const char *accel,

+ guint *keysym,

+ guint *keycode,

+ GdkModifierType *keymask)

+{

+ if (accel[0] == '0' && accel[1] == 'x')

+ {

+ *keysym = 0;

+ *keycode = (guint) strtoul (accel, NULL, 16);

+ *keymask = 0;

+ }

+ else

+ gtk_accelerator_parse (accel, keysym, keymask);

+}

+

+gboolean

+meta_ui_parse_accelerator (const char *accel,

+ unsigned int *keysym,

+ unsigned int *keycode,

+ MetaVirtualModifier *mask)

+{

+ GdkModifierType gdk_mask = 0;

+ guint gdk_sym = 0;

+ guint gdk_code = 0;

+

+ *keysym = 0;

+ *keycode = 0;

+ *mask = 0;

+

+ if (strcmp (accel, "disabled") == 0)

+ return TRUE;

+

+ meta_ui_accelerator_parse (accel, &gdk_sym, &gdk_code, &gdk_mask);

+ if (gdk_mask == 0 && gdk_sym == 0 && gdk_code == 0)

+ return FALSE;

+

+ if (gdk_sym == None && gdk_code == 0)

+ return FALSE;

+

+ if (gdk_mask & GDK_RELEASE_MASK) /* we don't allow this */

+ return FALSE;

+

+ *keysym = gdk_sym;

+ *keycode = gdk_code;

+

+ if (gdk_mask & GDK_SHIFT_MASK)

+ *mask |= META_VIRTUAL_SHIFT_MASK;

+ if (gdk_mask & GDK_CONTROL_MASK)

+ *mask |= META_VIRTUAL_CONTROL_MASK;

+ if (gdk_mask & GDK_MOD1_MASK)

+ *mask |= META_VIRTUAL_ALT_MASK;

+ if (gdk_mask & GDK_MOD2_MASK)

+ *mask |= META_VIRTUAL_MOD2_MASK;

+ if (gdk_mask & GDK_MOD3_MASK)

+ *mask |= META_VIRTUAL_MOD3_MASK;

+ if (gdk_mask & GDK_MOD4_MASK)

+ *mask |= META_VIRTUAL_MOD4_MASK;

+ if (gdk_mask & GDK_MOD5_MASK)

+ *mask |= META_VIRTUAL_MOD5_MASK;

+ if (gdk_mask & GDK_SUPER_MASK)

+ *mask |= META_VIRTUAL_SUPER_MASK;

+ if (gdk_mask & GDK_HYPER_MASK)

+ *mask |= META_VIRTUAL_HYPER_MASK;

+ if (gdk_mask & GDK_META_MASK)

+ *mask |= META_VIRTUAL_META_MASK;

+

+ return TRUE;

+}

+

+/* Caller responsible for freeing return string of meta_ui_accelerator_name! */

+gchar*

+meta_ui_accelerator_name (unsigned int keysym,

+ MetaVirtualModifier mask)

+{

+ GdkModifierType mods = 0;

+

+ if (keysym == 0 && mask == 0)

+ {

+ return g_strdup ("disabled");

+ }

+

+ if (mask & META_VIRTUAL_SHIFT_MASK)

+ mods |= GDK_SHIFT_MASK;

+ if (mask & META_VIRTUAL_CONTROL_MASK)

+ mods |= GDK_CONTROL_MASK;

+ if (mask & META_VIRTUAL_ALT_MASK)

+ mods |= GDK_MOD1_MASK;

+ if (mask & META_VIRTUAL_MOD2_MASK)

+ mods |= GDK_MOD2_MASK;

+ if (mask & META_VIRTUAL_MOD3_MASK)

+ mods |= GDK_MOD3_MASK;

+ if (mask & META_VIRTUAL_MOD4_MASK)

+ mods |= GDK_MOD4_MASK;

+ if (mask & META_VIRTUAL_MOD5_MASK)

+ mods |= GDK_MOD5_MASK;

+ if (mask & META_VIRTUAL_SUPER_MASK)

+ mods |= GDK_SUPER_MASK;

+ if (mask & META_VIRTUAL_HYPER_MASK)

+ mods |= GDK_HYPER_MASK;

+ if (mask & META_VIRTUAL_META_MASK)

+ mods |= GDK_META_MASK;

+

+ return gtk_accelerator_name (keysym, mods);

+

+}

+

+gboolean

+meta_ui_parse_modifier (const char *accel,

+ MetaVirtualModifier *mask)

+{

+ GdkModifierType gdk_mask = 0;

+ guint gdk_sym = 0;

+ guint gdk_code = 0;

+

+ *mask = 0;

+

+ if (accel == NULL || strcmp (accel, "disabled") == 0)

+ return TRUE;

+

+ meta_ui_accelerator_parse (accel, &gdk_sym, &gdk_code, &gdk_mask);

+ if (gdk_mask == 0 && gdk_sym == 0 && gdk_code == 0)

+ return FALSE;

+

+ if (gdk_sym != None || gdk_code != 0)

+ return FALSE;

+

+ if (gdk_mask & GDK_RELEASE_MASK) /* we don't allow this */

+ return FALSE;

+

+ if (gdk_mask & GDK_SHIFT_MASK)

+ *mask |= META_VIRTUAL_SHIFT_MASK;

+ if (gdk_mask & GDK_CONTROL_MASK)

+ *mask |= META_VIRTUAL_CONTROL_MASK;

+ if (gdk_mask & GDK_MOD1_MASK)

+ *mask |= META_VIRTUAL_ALT_MASK;

+ if (gdk_mask & GDK_MOD2_MASK)

+ *mask |= META_VIRTUAL_MOD2_MASK;

+ if (gdk_mask & GDK_MOD3_MASK)

+ *mask |= META_VIRTUAL_MOD3_MASK;

+ if (gdk_mask & GDK_MOD4_MASK)

+ *mask |= META_VIRTUAL_MOD4_MASK;

+ if (gdk_mask & GDK_MOD5_MASK)

+ *mask |= META_VIRTUAL_MOD5_MASK;

+ if (gdk_mask & GDK_SUPER_MASK)

+ *mask |= META_VIRTUAL_SUPER_MASK;

+ if (gdk_mask & GDK_HYPER_MASK)

+ *mask |= META_VIRTUAL_HYPER_MASK;

+ if (gdk_mask & GDK_META_MASK)

+ *mask |= META_VIRTUAL_META_MASK;

+

+ return TRUE;

+}

+

+gboolean

+meta_ui_window_is_widget (MetaUI *ui,

+ Window xwindow)

+{

+ GdkWindow *window;

+

+ window = gdk_xid_table_lookup (xwindow);

+

+ if (window)

+ {

+ void *user_data = NULL;

+ gdk_window_get_user_data (window, &user_data);

+ return user_data != NULL && user_data != ui->frames;

+ }

+ else

+ return FALSE;

+}

+

+/* stock icon code Copyright (C) 2002 Jorn Baayen <[email protected]> */

+

+typedef struct {

+ char* stock_id;

+ const guint8* icon_data;

+} MetaStockIcon;

+

+int meta_ui_get_drag_threshold(MetaUI* ui)

+{

+ int threshold = 8;

+ GtkSettings* settings = gtk_widget_get_settings(GTK_WIDGET(ui->frames));

+

+ g_object_get(G_OBJECT(settings), "gtk-dnd-drag-threshold", &threshold, NULL);

+

+ return threshold;

+}

+

+MetaUIDirection meta_ui_get_direction(void)

+{

+ if (gtk_widget_get_default_direction() == GTK_TEXT_DIR_RTL)

+ {

+ return META_UI_DIRECTION_RTL;

+ }

+

+ return META_UI_DIRECTION_LTR;

+}

+

+GdkPixbuf* meta_ui_get_pixbuf_from_pixmap(Pixmap pmap)

+{

+ GdkPixmap* gpmap;

+ GdkScreen* screen;

+ GdkPixbuf* pixbuf;

+ GdkColormap* cmap;

+ int width;

+ int height;

+ int depth;

+

+ gpmap = gdk_pixmap_foreign_new(pmap);

+ screen = gdk_drawable_get_screen(gpmap);

+

+ #if GTK_CHECK_VERSION(3, 0, 0)

+ width = gdk_window_get_width(GDK_WINDOW(gpmap));

+ height = gdk_window_get_height(GDK_WINDOW(gpmap));

+ #else

+ gdk_drawable_get_size(GDK_DRAWABLE(gpmap), &width, &height);

+ #endif

+

+ depth = gdk_drawable_get_depth(GDK_DRAWABLE(gpmap));

+

+ if (depth <= 24)

+ {

+ cmap = gdk_screen_get_system_colormap(screen);

+ }

+ else

+ {

+ cmap = gdk_screen_get_rgba_colormap(screen);

+ }

+

+ pixbuf = gdk_pixbuf_get_from_drawable(NULL, gpmap, cmap, 0, 0, 0, 0, width, height);

+

+ g_object_unref(gpmap);

+

+ return pixbuf;

+}