/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ /* eggtrayicon.c * Copyright (C) 2002 Anders Carlsson * * 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. */ /* 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: Envelope-to: vasek@localhost Delivery-date: Tue, 09 Dec 2003 13:04:35 +0100 Received: from localhost ([127.0.0.1] helo=amavis ident=amavis) by armitage with esmtp (Exim 3.35 #1) id 1ATgbS-0001Gs-00 for vasek@localhost; Tue, 09 Dec 2003 13:04:35 +0100 Received: from armitage ([127.0.0.1]) by amavis (armitage [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 04227-09 for ; Tue, 9 Dec 2003 13:04:11 +0100 (CET) Received: from localhost ([127.0.0.1] ident=fetchmail) by armitage with esmtp (Exim 3.35 #1) id 1ATgb5-0001GY-00 for vasek@localhost; Tue, 09 Dec 2003 13:04:11 +0100 Delivered-To: alias-email-slavikvaclav@seznam.cz Received: from pop3.seznam.cz [212.80.76.45] by localhost with POP3 (fetchmail-5.9.11) for vasek@localhost (single-drop); Tue, 09 Dec 2003 13:04:11 +0100 (CET) Received: (qmail 9861 invoked from network); 9 Dec 2003 12:02:17 -0000 Received: from unknown (HELO maxipes.logix.cz) (81.0.234.97) by buster.go.seznam.cz with SMTP; 9 Dec 2003 12:02:17 -0000 Received: by maxipes.logix.cz (Postfix, from userid 604) id 37E6D29A51; Tue, 9 Dec 2003 13:02:16 +0100 (CET) X-Original-To: vaclav.slavik@matfyz.cz Received: from mail.csbnet.se (glutus.csbnet.se [193.11.248.2]) by maxipes.logix.cz (Postfix) with ESMTP id 90D6A29A51 for ; Tue, 9 Dec 2003 13:02:15 +0100 (CET) Received: by mail.csbnet.se (Postfix, from userid 8) id 7AA7F10A6D7; Tue, 9 Dec 2003 13:02:14 +0100 (CET) Received: from carbon.csbnet.se (carbon.csbnet.se [193.11.248.180]) by mail.csbnet.se (Postfix) with ESMTP id A190F10A71D for ; Tue, 9 Dec 2003 13:01:56 +0100 (CET) Subject: Re: eggtrayicon.{c,h} licensing From: Anders Carlsson To: Vaclav Slavik In-Reply-To: <200312091142.54542.vaclav.slavik@matfyz.cz> References: <200312091142.54542.vaclav.slavik@matfyz.cz> Content-Type: text/plain Message-Id: <1070971316.30989.0.camel@carbon.csbnet.se> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.5 Date: Tue, 09 Dec 2003 13:01:56 +0100 Content-Transfer-Encoding: 7bit X-Scanned-By: CLAM (openantivirus DB) antivirus scanner at mail.csbnet.se X-Virus-Scanned: by amavisd-new-20030616-p5 (Debian) at armitage X-Spam-Status: No, hits=-4.9 tagged_above=-999.0 required=6.3 tests=BAYES_00 X-Spam-Level: Status: R X-Status: N X-KMail-EncryptionState: X-KMail-SignatureState: 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 #if GTK_CHECK_VERSION(2, 1, 0) #include #include "eggtrayicon.h" #include #if defined (GDK_WINDOWING_X11) #include #include #elif defined (GDK_WINDOWING_WIN32) #include #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_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) { static GType our_type = 0; if (our_type == 0) { static const GTypeInfo our_info = { sizeof (EggTrayIconClass), (GBaseInitFunc) NULL, (GBaseFinalizeFunc) NULL, (GClassInitFunc) egg_tray_icon_class_init, NULL, /* class_finalize */ NULL, /* class_data */ sizeof (EggTrayIcon), 0, /* n_preallocs */ (GInstanceInitFunc) egg_tray_icon_init }; our_type = g_type_register_static (GTK_TYPE_PLUG, "EggTrayIcon", &our_info, 0); } return our_type; } 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 egg_tray_icon_manager_filter (GdkXEvent *xevent, GdkEvent *event, gpointer user_data) { EggTrayIcon *icon = user_data; XEvent *xev = (XEvent *)xevent; if (xev->xany.type == ClientMessage && xev->xclient.message_type == icon->manager_atom && xev->xclient.data.l[1] == icon->selection_atom) { 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_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; if (icon->manager_window != None) { GdkWindow *gdkwin; gdkwin = gdk_window_lookup_for_display (gtk_widget_get_display (widget), icon->manager_window); gdk_window_remove_filter (gdkwin, egg_tray_icon_manager_filter, icon); } root_window = gdk_screen_get_root_window (gtk_widget_get_screen (widget)); gdk_window_remove_filter (root_window, egg_tray_icon_manager_filter, icon); 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, Window window, long data1, long data2, long data3) { XClientMessageEvent ev; Display *display; ev.type = ClientMessage; ev.window = window; ev.message_type = icon->system_tray_opcode_atom; ev.format = 32; ev.data.l[0] = gdk_x11_get_server_time (GTK_WIDGET (icon)->window); ev.data.l[1] = message; ev.data.l[2] = data1; ev.data.l[3] = data2; 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); XSync (display, False); gdk_error_trap_pop (); } static void egg_tray_icon_send_dock_request (EggTrayIcon *icon) { egg_tray_icon_send_manager_message (icon, SYSTEM_TRAY_REQUEST_DOCK, icon->manager_window, gtk_plug_get_id (GTK_PLUG (icon)), 0, 0); } static void egg_tray_icon_update_manager_window (EggTrayIcon *icon, gboolean dock_if_realized) { Display *xdisplay; if (icon->manager_window != None) return; xdisplay = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon))); XGrabServer (xdisplay); icon->manager_window = XGetSelectionOwner (xdisplay, icon->selection_atom); if (icon->manager_window != None) XSelectInput (xdisplay, 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); if (dock_if_realized && GTK_WIDGET_REALIZED (icon)) egg_tray_icon_send_dock_request (icon); egg_tray_icon_get_orientation_property (icon); } } 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) { 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; 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", 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); #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 * egg_tray_icon_new_for_screen (GdkScreen *screen, const char *name) { g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL); return g_object_new (EGG_TYPE_TRAY_ICON, "screen", screen, "title", name, NULL); } EggTrayIcon* egg_tray_icon_new (const gchar *name) { return g_object_new (EGG_TYPE_TRAY_ICON, "title", name, NULL); } guint egg_tray_icon_send_message (EggTrayIcon *icon, gint timeout, const gchar *message, 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, icon->manager_window, timeout, len, stamp); /* Now to send the actual message */ gdk_error_trap_push (); while (len > 0) { XClientMessageEvent ev; Display *xdisplay; xdisplay = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon))); ev.type = ClientMessage; ev.window = icon->manager_window; ev.format = 8; ev.message_type = XInternAtom (xdisplay, "_NET_SYSTEM_TRAY_MESSAGE_DATA", False); if (len > 20) { memcpy (&ev.data, message, 20); len -= 20; message += 20; } else { memcpy (&ev.data, message, len); len = 0; } XSendEvent (xdisplay, icon->manager_window, False, StructureNotifyMask, (XEvent *)&ev); XSync (xdisplay, False); } gdk_error_trap_pop (); #endif return stamp; } void egg_tray_icon_cancel_message (EggTrayIcon *icon, guint id) { 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 */