]> git.saurik.com Git - wxWidgets.git/blobdiff - src/gtk/eggtrayicon.c
merge DoDrawText() and DoDrawRotatedText() into one function
[wxWidgets.git] / src / gtk / eggtrayicon.c
index 416a6481eaebd73fbddf257ab1c6e430497f6eb1..bd048ae634c57c74c94895ff74b71cf45a03a11a 100644 (file)
  * Boston, MA 02111-1307, USA.
  */
 
+/*
+
+Permission to use this file under wxWindows licence given by
+copyright holder:
+--------
+From andersca@gnu.org Tue Dec  9 13:01:56 2003
+Return-path: <andersca@gnu.org>
+Envelope-to: vasek@localhost
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+       for <vaclav.slavik@matfyz.cz>; Tue,  9 Dec 2003 13:01:56 +0100 (CET)
+Subject: Re: eggtrayicon.{c,h} licensing
+From: Anders Carlsson <andersca@gnu.org>
+To: Vaclav Slavik <vaclav.slavik@matfyz.cz>
+In-Reply-To: <200312091142.54542.vaclav.slavik@matfyz.cz>
+References: <200312091142.54542.vaclav.slavik@matfyz.cz>
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+Date: Tue, 09 Dec 2003 13:01:56 +0100
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+
+On tis, 2003-12-09 at 11:42 +0100, Vaclav Slavik wrote:
+> Hi,
+> 
+> I'm working on the wxWindows cross-platform GUI toolkit
+> (http://www.wxwindows.org) which uses GTK+ and it would save me a lot
+> of time if I could use your eggtrayicon code to implement tray icons
+> on X11. Unfortunately I can't use it right now because it is not part
+> of any library we could depend on (as we do depend on GTK+) and would
+> have to be included in our sources and it is under the LGPL license.
+> The problem is that wxWindows' license is more permissive (see
+> http://www.opensource.org/licenses/wxwindows.php for details) and so
+> I can't take your code and put it under wxWindows License. And I
+> can't put code that can't be used under the terms of wxWindows
+> License into wxWindows either. Do you think it would be possible to
+> get permission to include eggtrayicon under wxWindows license?
+>
+> Thanks,
+> Vaclav
+>
+
+Sure, that's fine by me.
+
+Anders
+--------
+*/
+
+
+#include "wx/platform.h"
+
+#if wxUSE_TASKBARICON
+
+#include <gtk/gtk.h>
+#if GTK_CHECK_VERSION(2, 1, 0)
+
 #include <string.h>
-#include <gdk/gdkx.h>
 #include "eggtrayicon.h"
 
+#include <gdkconfig.h>
+#if defined (GDK_WINDOWING_X11)
+#include <gdk/gdkx.h>
+#include <X11/Xatom.h>
+#elif defined (GDK_WINDOWING_WIN32)
+#include <gdk/gdkwin32.h>
+#endif
+
+
 #define SYSTEM_TRAY_REQUEST_DOCK    0
 #define SYSTEM_TRAY_BEGIN_MESSAGE   1
 #define SYSTEM_TRAY_CANCEL_MESSAGE  2
-         
+
+#define SYSTEM_TRAY_ORIENTATION_HORZ 0
+#define SYSTEM_TRAY_ORIENTATION_VERT 1
+
+enum {
+  PROP_0,
+  PROP_ORIENTATION
+};
+
 static GtkPlugClass *parent_class = NULL;
 
 static void egg_tray_icon_init (EggTrayIcon *icon);
 static void egg_tray_icon_class_init (EggTrayIconClass *klass);
 
+static void egg_tray_icon_get_property (GObject    *object,
+                                       guint       prop_id,
+                                       GValue     *value,
+                                       GParamSpec *pspec);
+
+static void egg_tray_icon_realize   (GtkWidget *widget);
 static void egg_tray_icon_unrealize (GtkWidget *widget);
 
-static void egg_tray_icon_update_manager_window (EggTrayIcon *icon);
+static void egg_tray_icon_add (GtkContainer *container,
+                              GtkWidget    *widget);
+
+#ifdef GDK_WINDOWING_X11
+static void egg_tray_icon_update_manager_window    (EggTrayIcon *icon,
+                                                   gboolean     dock_if_realized);
+static void egg_tray_icon_manager_window_destroyed (EggTrayIcon *icon);
+#endif
 
 GType
 egg_tray_icon_get_type (void)
@@ -65,18 +188,108 @@ static void
 egg_tray_icon_init (EggTrayIcon *icon)
 {
   icon->stamp = 1;
-  
+  icon->orientation = GTK_ORIENTATION_HORIZONTAL;
+
   gtk_widget_add_events (GTK_WIDGET (icon), GDK_PROPERTY_CHANGE_MASK);
 }
 
 static void
 egg_tray_icon_class_init (EggTrayIconClass *klass)
 {
+  GObjectClass *gobject_class = (GObjectClass *)klass;
   GtkWidgetClass *widget_class = (GtkWidgetClass *)klass;
+  GtkContainerClass *container_class = (GtkContainerClass *)klass;
 
   parent_class = g_type_class_peek_parent (klass);
 
+  gobject_class->get_property = egg_tray_icon_get_property;
+
+  widget_class->realize   = egg_tray_icon_realize;
   widget_class->unrealize = egg_tray_icon_unrealize;
+
+  container_class->add = egg_tray_icon_add;
+
+  g_object_class_install_property (gobject_class,
+                                  PROP_ORIENTATION,
+                                  g_param_spec_enum ("orientation",
+                                                     "Orientation",
+                                                     "The orientation of the tray.",
+                                                     GTK_TYPE_ORIENTATION,
+                                                     GTK_ORIENTATION_HORIZONTAL,
+                                                     G_PARAM_READABLE));
+}
+
+static void
+egg_tray_icon_get_property (GObject    *object,
+                           guint       prop_id,
+                           GValue     *value,
+                           GParamSpec *pspec)
+{
+  EggTrayIcon *icon = EGG_TRAY_ICON (object);
+
+  switch (prop_id)
+    {
+    case PROP_ORIENTATION:
+      g_value_set_enum (value, icon->orientation);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+#ifdef GDK_WINDOWING_X11
+
+static void
+egg_tray_icon_get_orientation_property (EggTrayIcon *icon)
+{
+  Display *xdisplay;
+  Atom type;
+  int format;
+  union {
+       gulong *prop;
+       guchar *prop_ch;
+  } prop = { NULL };
+  gulong nitems;
+  gulong bytes_after;
+  int error, result;
+
+  g_assert (icon->manager_window != None);
+
+  xdisplay = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon)));
+
+  gdk_error_trap_push ();
+  type = None;
+  result = XGetWindowProperty (xdisplay,
+                              icon->manager_window,
+                              icon->orientation_atom,
+                              0, G_MAXLONG, FALSE,
+                              XA_CARDINAL,
+                              &type, &format, &nitems,
+                              &bytes_after, &(prop.prop_ch));
+  error = gdk_error_trap_pop ();
+
+  if (error || result != Success)
+    return;
+
+  if (type == XA_CARDINAL)
+    {
+      GtkOrientation orientation;
+
+      orientation = (prop.prop [0] == SYSTEM_TRAY_ORIENTATION_HORZ) ?
+                                       GTK_ORIENTATION_HORIZONTAL :
+                                       GTK_ORIENTATION_VERTICAL;
+
+      if (icon->orientation != orientation)
+       {
+         icon->orientation = orientation;
+
+         g_object_notify (G_OBJECT (icon), "orientation");
+       }
+    }
+
+  if (prop.prop)
+    XFree (prop.prop);
 }
 
 static GdkFilterReturn
@@ -89,22 +302,29 @@ egg_tray_icon_manager_filter (GdkXEvent *xevent, GdkEvent *event, gpointer user_
       xev->xclient.message_type == icon->manager_atom &&
       xev->xclient.data.l[1] == icon->selection_atom)
     {
-      egg_tray_icon_update_manager_window (icon);
+      egg_tray_icon_update_manager_window (icon, TRUE);
     }
   else if (xev->xany.window == icon->manager_window)
     {
+      if (xev->xany.type == PropertyNotify &&
+         xev->xproperty.atom == icon->orientation_atom)
+       {
+         egg_tray_icon_get_orientation_property (icon);
+       }
       if (xev->xany.type == DestroyNotify)
        {
-         egg_tray_icon_update_manager_window (icon);
+         egg_tray_icon_manager_window_destroyed (icon);
        }
     }
-  
   return GDK_FILTER_CONTINUE;
 }
 
+#endif
+
 static void
 egg_tray_icon_unrealize (GtkWidget *widget)
 {
+#ifdef GDK_WINDOWING_X11
   EggTrayIcon *icon = EGG_TRAY_ICON (widget);
   GdkWindow *root_window;
 
@@ -124,8 +344,11 @@ egg_tray_icon_unrealize (GtkWidget *widget)
 
   if (GTK_WIDGET_CLASS (parent_class)->unrealize)
     (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
+#endif
 }
 
+#ifdef GDK_WINDOWING_X11
+
 static void
 egg_tray_icon_send_manager_message (EggTrayIcon *icon,
                                    long         message,
@@ -136,7 +359,7 @@ egg_tray_icon_send_manager_message (EggTrayIcon *icon,
 {
   XClientMessageEvent ev;
   Display *display;
-  
+
   ev.type = ClientMessage;
   ev.window = window;
   ev.message_type = icon->system_tray_opcode_atom;
@@ -148,7 +371,7 @@ egg_tray_icon_send_manager_message (EggTrayIcon *icon,
   ev.data.l[4] = data3;
 
   display = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon)));
-  
+
   gdk_error_trap_push ();
   XSendEvent (display,
              icon->manager_window, False, NoEventMask, (XEvent *)&ev);
@@ -167,95 +390,147 @@ egg_tray_icon_send_dock_request (EggTrayIcon *icon)
 }
 
 static void
-egg_tray_icon_update_manager_window (EggTrayIcon *icon)
+egg_tray_icon_update_manager_window (EggTrayIcon *icon,
+                                    gboolean     dock_if_realized)
 {
   Display *xdisplay;
-  
-  xdisplay = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon)));
-  
+
   if (icon->manager_window != None)
-    {
-      GdkWindow *gdkwin;
+    return;
+
+  xdisplay = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon)));
 
-      gdkwin = gdk_window_lookup_for_display (gtk_widget_get_display (GTK_WIDGET (icon)),
-                                             icon->manager_window);
-      
-      gdk_window_remove_filter (gdkwin, egg_tray_icon_manager_filter, icon);
-    }
-  
   XGrabServer (xdisplay);
-  
+
   icon->manager_window = XGetSelectionOwner (xdisplay,
                                             icon->selection_atom);
 
   if (icon->manager_window != None)
     XSelectInput (xdisplay,
-                 icon->manager_window, StructureNotifyMask);
+                 icon->manager_window, StructureNotifyMask|PropertyChangeMask);
 
   XUngrabServer (xdisplay);
   XFlush (xdisplay);
-  
+
   if (icon->manager_window != None)
     {
       GdkWindow *gdkwin;
 
       gdkwin = gdk_window_lookup_for_display (gtk_widget_get_display (GTK_WIDGET (icon)),
                                              icon->manager_window);
-      
+
       gdk_window_add_filter (gdkwin, egg_tray_icon_manager_filter, icon);
 
-      /* Send a request that we'd like to dock */
-      egg_tray_icon_send_dock_request (icon);
+      if (dock_if_realized && GTK_WIDGET_REALIZED (icon))
+       egg_tray_icon_send_dock_request (icon);
+
+      egg_tray_icon_get_orientation_property (icon);
     }
 }
 
-EggTrayIcon *
-egg_tray_icon_new_for_xscreen (Screen *xscreen, const char *name)
+static void
+egg_tray_icon_manager_window_destroyed (EggTrayIcon *icon)
+{
+  GdkWindow *gdkwin;
+
+  g_return_if_fail (icon->manager_window != None);
+
+  gdkwin = gdk_window_lookup_for_display (gtk_widget_get_display (GTK_WIDGET (icon)),
+                                         icon->manager_window);
+
+  gdk_window_remove_filter (gdkwin, egg_tray_icon_manager_filter, icon);
+
+  icon->manager_window = None;
+
+  egg_tray_icon_update_manager_window (icon, TRUE);
+}
+
+#endif
+
+static gboolean
+transparent_expose_event (GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
+{
+  gdk_window_clear_area (widget->window, event->area.x, event->area.y,
+                        event->area.width, event->area.height);
+  return FALSE;
+}
+
+static void
+make_transparent_again (GtkWidget *widget, GtkStyle *previous_style,
+                       gpointer user_data)
 {
-  EggTrayIcon *icon;
+  gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
+}
+
+static void
+make_transparent (GtkWidget *widget, gpointer user_data)
+{
+  if (GTK_WIDGET_NO_WINDOW (widget) || GTK_WIDGET_APP_PAINTABLE (widget))
+    return;
+
+  gtk_widget_set_app_paintable (widget, TRUE);
+  gtk_widget_set_double_buffered (widget, FALSE);
+  gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
+  g_signal_connect (widget, "expose_event",
+                   G_CALLBACK (transparent_expose_event), NULL);
+  g_signal_connect_after (widget, "style_set",
+                         G_CALLBACK (make_transparent_again), NULL);
+}
+
+static void
+egg_tray_icon_realize (GtkWidget *widget)
+{
+#ifdef GDK_WINDOWING_X11
+  EggTrayIcon *icon = EGG_TRAY_ICON (widget);
+  GdkScreen *screen;
+  GdkDisplay *display;
+  Display *xdisplay;
   char buffer[256];
   GdkWindow *root_window;
-  GdkDisplay *display;
-  GdkScreen *screen;
-  
-  g_return_val_if_fail (xscreen != NULL, NULL);
-  
-  icon = g_object_new (EGG_TYPE_TRAY_ICON, NULL);
-  gtk_window_set_title (GTK_WINDOW (icon), name);
-
-  display = gdk_x11_lookup_xdisplay (DisplayOfScreen (xscreen));
-  screen = gdk_display_get_screen (display, XScreenNumberOfScreen (xscreen));
-  
-  gtk_plug_construct_for_display (GTK_PLUG (icon),
-                                 display, 0);
-
-  gtk_window_set_screen (GTK_WINDOW (icon), screen);    
-  
-  gtk_widget_realize (GTK_WIDGET (icon));
+
+  if (GTK_WIDGET_CLASS (parent_class)->realize)
+    GTK_WIDGET_CLASS (parent_class)->realize (widget);
+
+  make_transparent (widget, NULL);
+
+  screen = gtk_widget_get_screen (widget);
+  display = gdk_screen_get_display (screen);
+  xdisplay = gdk_x11_display_get_xdisplay (display);
 
   /* Now see if there's a manager window around */
   g_snprintf (buffer, sizeof (buffer),
              "_NET_SYSTEM_TRAY_S%d",
-             XScreenNumberOfScreen (xscreen));
-  
-  icon->selection_atom = XInternAtom (DisplayOfScreen (xscreen),
-                                     buffer, False);
-  
-  icon->manager_atom = XInternAtom (DisplayOfScreen (xscreen),
-                                   "MANAGER", False);
-  
-  icon->system_tray_opcode_atom = XInternAtom (DisplayOfScreen (xscreen),
-                                              "_NET_SYSTEM_TRAY_OPCODE", False);
-
-  egg_tray_icon_update_manager_window (icon);
-
-  root_window = gdk_screen_get_root_window (gtk_widget_get_screen (GTK_WIDGET (icon)));
-  
+             gdk_screen_get_number (screen));
+
+  icon->selection_atom = XInternAtom (xdisplay, buffer, False);
+
+  icon->manager_atom = XInternAtom (xdisplay, "MANAGER", False);
+
+  icon->system_tray_opcode_atom = XInternAtom (xdisplay,
+                                                  "_NET_SYSTEM_TRAY_OPCODE",
+                                                  False);
+
+  icon->orientation_atom = XInternAtom (xdisplay,
+                                       "_NET_SYSTEM_TRAY_ORIENTATION",
+                                       False);
+
+  egg_tray_icon_update_manager_window (icon, FALSE);
+  egg_tray_icon_send_dock_request (icon);
+
+  root_window = gdk_screen_get_root_window (screen);
+
   /* Add a root window filter so that we get changes on MANAGER */
   gdk_window_add_filter (root_window,
                         egg_tray_icon_manager_filter, icon);
-                     
-  return icon;
+#endif
+}
+
+static void
+egg_tray_icon_add (GtkContainer *container, GtkWidget *widget)
+{
+  g_signal_connect (widget, "realize",
+                   G_CALLBACK (make_transparent), NULL);
+  GTK_CONTAINER_CLASS (parent_class)->add (container, widget);
 }
 
 EggTrayIcon *
@@ -263,13 +538,13 @@ egg_tray_icon_new_for_screen (GdkScreen *screen, const char *name)
 {
   g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
 
-  return egg_tray_icon_new_for_xscreen (GDK_SCREEN_XSCREEN (screen), name);
+  return g_object_new (EGG_TYPE_TRAY_ICON, "screen", screen, "title", name, NULL);
 }
 
 EggTrayIcon*
 egg_tray_icon_new (const gchar *name)
 {
-  return egg_tray_icon_new_for_xscreen (DefaultScreenOfDisplay (gdk_display), name);
+  return g_object_new (EGG_TYPE_TRAY_ICON, "title", name, NULL);
 }
 
 guint
@@ -279,22 +554,25 @@ egg_tray_icon_send_message (EggTrayIcon *icon,
                            gint         len)
 {
   guint stamp;
-  
+
   g_return_val_if_fail (EGG_IS_TRAY_ICON (icon), 0);
   g_return_val_if_fail (timeout >= 0, 0);
   g_return_val_if_fail (message != NULL, 0);
-                    
+
+#ifdef GDK_WINDOWING_X11
   if (icon->manager_window == None)
     return 0;
+#endif
 
   if (len < 0)
     len = strlen (message);
 
   stamp = icon->stamp++;
-  
+
+#ifdef GDK_WINDOWING_X11
   /* Get ready to send the message */
   egg_tray_icon_send_manager_message (icon, SYSTEM_TRAY_BEGIN_MESSAGE,
-                                     (Window)gtk_plug_get_id (GTK_PLUG (icon)),
+                                     icon->manager_window,
                                      timeout, len, stamp);
 
   /* Now to send the actual message */
@@ -305,9 +583,9 @@ egg_tray_icon_send_message (EggTrayIcon *icon,
       Display *xdisplay;
 
       xdisplay = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon)));
-      
+
       ev.type = ClientMessage;
-      ev.window = (Window)gtk_plug_get_id (GTK_PLUG (icon));
+      ev.window = icon->manager_window;
       ev.format = 8;
       ev.message_type = XInternAtom (xdisplay,
                                     "_NET_SYSTEM_TRAY_MESSAGE_DATA", False);
@@ -328,6 +606,7 @@ egg_tray_icon_send_message (EggTrayIcon *icon,
       XSync (xdisplay, False);
     }
   gdk_error_trap_pop ();
+#endif
 
   return stamp;
 }
@@ -338,8 +617,24 @@ egg_tray_icon_cancel_message (EggTrayIcon *icon,
 {
   g_return_if_fail (EGG_IS_TRAY_ICON (icon));
   g_return_if_fail (id > 0);
-  
+#ifdef GDK_WINDOWING_X11
   egg_tray_icon_send_manager_message (icon, SYSTEM_TRAY_CANCEL_MESSAGE,
                                      (Window)gtk_plug_get_id (GTK_PLUG (icon)),
                                      id, 0, 0);
+#endif
+}
+
+GtkOrientation
+egg_tray_icon_get_orientation (EggTrayIcon *icon)
+{
+  g_return_val_if_fail (EGG_IS_TRAY_ICON (icon), GTK_ORIENTATION_HORIZONTAL);
+
+  return icon->orientation;
 }
+
+
+
+
+
+#endif /* GTK_CHECK_VERSION(2, 1, 0) */
+#endif /* wxUSE_TASKBARICON */