forked from AuroraMiddleware/gtk
12704a67bc
2006-04-05 Matthias Clasen <mclasen@redhat.com> * gtk/gtkmain.c (gtk_grab_add, gtk_grab_remove, gtk_grab_notify) (gtk_grab_notify_foreach): Rework the code which emits ::grab-notify signals to ensure that we emit enough signals. Also optimize the code to not do unnecessary tree walking. * gtk/gtkwidget.c (gtk_widget_class_init): Document ::grab-notify.
2336 lines
60 KiB
C
2336 lines
60 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include <config.h>
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#include <glib.h>
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#include "gdkconfig.h"
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#include <locale.h>
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#ifdef HAVE_BIND_TEXTDOMAIN_CODESET
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#include <libintl.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <sys/types.h> /* For uid_t, gid_t */
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#ifdef G_OS_WIN32
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#define STRICT
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#include <windows.h>
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#undef STRICT
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#endif
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#include <pango/pango-types.h> /* For pango_language_from_string */
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#include "gtkintl.h"
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#include "gtkaccelmap.h"
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#include "gtkbox.h"
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#include "gtkclipboard.h"
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#include "gtkdnd.h"
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#include "gtkversion.h"
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#include "gtkmain.h"
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#include "gtkmodules.h"
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#include "gtkrc.h"
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#include "gtkselection.h"
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#include "gtksettings.h"
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#include "gtkwidget.h"
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#include "gtkwindow.h"
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#include "gtkprivate.h"
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#include "gtkdebug.h"
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#include "gtkalias.h"
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#include "gdk/gdkprivate.h" /* for GDK_WINDOW_DESTROYED */
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/* Private type definitions
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*/
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typedef struct _GtkInitFunction GtkInitFunction;
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typedef struct _GtkQuitFunction GtkQuitFunction;
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typedef struct _GtkClosure GtkClosure;
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typedef struct _GtkKeySnooperData GtkKeySnooperData;
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struct _GtkInitFunction
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{
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GtkFunction function;
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gpointer data;
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};
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struct _GtkQuitFunction
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{
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guint id;
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guint main_level;
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GtkCallbackMarshal marshal;
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GtkFunction function;
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gpointer data;
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GtkDestroyNotify destroy;
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};
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struct _GtkClosure
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{
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GtkCallbackMarshal marshal;
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gpointer data;
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GtkDestroyNotify destroy;
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};
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struct _GtkKeySnooperData
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{
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GtkKeySnoopFunc func;
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gpointer func_data;
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guint id;
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};
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static gint gtk_quit_invoke_function (GtkQuitFunction *quitf);
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static void gtk_quit_destroy (GtkQuitFunction *quitf);
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static gint gtk_invoke_key_snoopers (GtkWidget *grab_widget,
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GdkEvent *event);
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static void gtk_destroy_closure (gpointer data);
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static gboolean gtk_invoke_idle_timeout (gpointer data);
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static void gtk_invoke_input (gpointer data,
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gint source,
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GdkInputCondition condition);
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#if 0
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static void gtk_error (gchar *str);
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static void gtk_warning (gchar *str);
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static void gtk_message (gchar *str);
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static void gtk_print (gchar *str);
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#endif
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static GtkWindowGroup *gtk_main_get_window_group (GtkWidget *widget);
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const guint gtk_major_version = GTK_MAJOR_VERSION;
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const guint gtk_minor_version = GTK_MINOR_VERSION;
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const guint gtk_micro_version = GTK_MICRO_VERSION;
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const guint gtk_binary_age = GTK_BINARY_AGE;
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const guint gtk_interface_age = GTK_INTERFACE_AGE;
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static guint gtk_main_loop_level = 0;
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static gint gtk_initialized = FALSE;
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static GList *current_events = NULL;
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static GSList *main_loops = NULL; /* stack of currently executing main loops */
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static GList *init_functions = NULL; /* A list of init functions.
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*/
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static GList *quit_functions = NULL; /* A list of quit functions.
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*/
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static GSList *key_snoopers = NULL;
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guint gtk_debug_flags = 0; /* Global GTK debug flag */
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#ifdef G_ENABLE_DEBUG
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static const GDebugKey gtk_debug_keys[] = {
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{"misc", GTK_DEBUG_MISC},
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{"plugsocket", GTK_DEBUG_PLUGSOCKET},
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{"text", GTK_DEBUG_TEXT},
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{"tree", GTK_DEBUG_TREE},
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{"updates", GTK_DEBUG_UPDATES},
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{"keybindings", GTK_DEBUG_KEYBINDINGS},
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{"multihead", GTK_DEBUG_MULTIHEAD},
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{"modules", GTK_DEBUG_MODULES},
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{"geometry", GTK_DEBUG_GEOMETRY},
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{"icontheme", GTK_DEBUG_ICONTHEME}
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};
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#endif /* G_ENABLE_DEBUG */
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/**
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* gtk_check_version:
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* @required_major: the required major version.
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* @required_minor: the required major version.
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* @required_micro: the required major version.
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*
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* Checks that the GTK+ library in use is compatible with the
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* given version. Generally you would pass in the constants
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* #GTK_MAJOR_VERSION, #GTK_MINOR_VERSION, #GTK_MICRO_VERSION
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* as the three arguments to this function; that produces
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* a check that the library in use is compatible with
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* the version of GTK+ the application or module was compiled
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* against.
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*
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* Compatibility is defined by two things: first the version
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* of the running library is newer than the version
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* @required_major.required_minor.@required_micro. Second
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* the running library must be binary compatible with the
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* version @required_major.required_minor.@required_micro
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* (same major version.)
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*
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* This function is primarily for GTK+ modules; the module
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* can call this function to check that it wasn't loaded
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* into an incompatible version of GTK+. However, such a
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* a check isn't completely reliable, since the module may be
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* linked against an old version of GTK+ and calling the
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* old version of gtk_check_version(), but still get loaded
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* into an application using a newer version of GTK+.
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*
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* Return value: %NULL if the GTK+ library is compatible with the
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* given version, or a string describing the version mismatch.
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* The returned string is owned by GTK+ and should not be modified
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* or freed.
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**/
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gchar*
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gtk_check_version (guint required_major,
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guint required_minor,
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guint required_micro)
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{
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gint gtk_effective_micro = 100 * GTK_MINOR_VERSION + GTK_MICRO_VERSION;
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gint required_effective_micro = 100 * required_minor + required_micro;
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if (required_major > GTK_MAJOR_VERSION)
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return "Gtk+ version too old (major mismatch)";
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if (required_major < GTK_MAJOR_VERSION)
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return "Gtk+ version too new (major mismatch)";
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if (required_effective_micro < gtk_effective_micro - GTK_BINARY_AGE)
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return "Gtk+ version too new (micro mismatch)";
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if (required_effective_micro > gtk_effective_micro)
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return "Gtk+ version too old (micro mismatch)";
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return NULL;
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}
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/* This checks to see if the process is running suid or sgid
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* at the current time. If so, we don't allow GTK+ to be initialized.
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* This is meant to be a mild check - we only error out if we
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* can prove the programmer is doing something wrong, not if
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* they could be doing something wrong. For this reason, we
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* don't use issetugid() on BSD or prctl (PR_GET_DUMPABLE).
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*/
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static gboolean
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check_setugid (void)
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{
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/* this isn't at all relevant on MS Windows and doesn't compile ... --hb */
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#ifndef G_OS_WIN32
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uid_t ruid, euid, suid; /* Real, effective and saved user ID's */
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gid_t rgid, egid, sgid; /* Real, effective and saved group ID's */
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#ifdef HAVE_GETRESUID
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/* These aren't in the header files, so we prototype them here.
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*/
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int getresuid(uid_t *ruid, uid_t *euid, uid_t *suid);
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int getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid);
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if (getresuid (&ruid, &euid, &suid) != 0 ||
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getresgid (&rgid, &egid, &sgid) != 0)
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#endif /* HAVE_GETRESUID */
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{
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suid = ruid = getuid ();
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sgid = rgid = getgid ();
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euid = geteuid ();
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egid = getegid ();
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}
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if (ruid != euid || ruid != suid ||
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rgid != egid || rgid != sgid)
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{
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g_warning ("This process is currently running setuid or setgid.\n"
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"This is not a supported use of GTK+. You must create a helper\n"
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"program instead. For further details, see:\n\n"
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" http://www.gtk.org/setuid.html\n\n"
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"Refusing to initialize GTK+.");
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exit (1);
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}
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#endif
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return TRUE;
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}
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#ifdef G_OS_WIN32
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G_WIN32_DLLMAIN_FOR_DLL_NAME(static, dll_name)
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const gchar *
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_gtk_get_datadir (void)
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{
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static char *gtk_datadir = NULL;
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if (gtk_datadir == NULL)
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gtk_datadir = g_win32_get_package_installation_subdirectory
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(GETTEXT_PACKAGE, dll_name, "share");
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return gtk_datadir;
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}
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const gchar *
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_gtk_get_libdir (void)
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{
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static char *gtk_libdir = NULL;
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if (gtk_libdir == NULL)
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gtk_libdir = g_win32_get_package_installation_subdirectory
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(GETTEXT_PACKAGE, dll_name, "lib");
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return gtk_libdir;
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}
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const gchar *
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_gtk_get_localedir (void)
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{
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static char *gtk_localedir = NULL;
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if (gtk_localedir == NULL)
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{
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gchar *temp;
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temp = g_win32_get_package_installation_subdirectory
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(GETTEXT_PACKAGE, dll_name, "lib\\locale");
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/* gtk_localedir is passed to bindtextdomain() which isn't
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* UTF-8-aware.
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*/
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gtk_localedir = g_win32_locale_filename_from_utf8 (temp);
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g_free (temp);
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}
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return gtk_localedir;
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}
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const gchar *
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_gtk_get_sysconfdir (void)
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{
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static char *gtk_sysconfdir = NULL;
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if (gtk_sysconfdir == NULL)
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gtk_sysconfdir = g_win32_get_package_installation_subdirectory
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(GETTEXT_PACKAGE, dll_name, "etc");
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return gtk_sysconfdir;
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}
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const gchar *
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_gtk_get_data_prefix (void)
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{
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static char *gtk_data_prefix = NULL;
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if (gtk_data_prefix == NULL)
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gtk_data_prefix = g_win32_get_package_installation_directory
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(GETTEXT_PACKAGE, dll_name);
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return gtk_data_prefix;
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}
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#endif /* G_OS_WIN32 */
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static gboolean do_setlocale = TRUE;
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/**
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* gtk_disable_setlocale:
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*
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* Prevents gtk_init(), gtk_init_check(), gtk_init_with_args() and
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* gtk_parse_args() from automatically
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* calling <literal>setlocale (LC_ALL, "")</literal>. You would
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* want to use this function if you wanted to set the locale for
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* your program to something other than the user's locale, or if
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* you wanted to set different values for different locale categories.
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*
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* Most programs should not need to call this function.
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**/
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void
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gtk_disable_setlocale (void)
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{
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if (gtk_initialized)
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g_warning ("gtk_disable_setlocale() must be called before gtk_init()");
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do_setlocale = FALSE;
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}
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#ifdef G_PLATFORM_WIN32
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#undef gtk_init_check
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#endif
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static GString *gtk_modules_string = NULL;
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static gboolean g_fatal_warnings = FALSE;
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#ifdef G_ENABLE_DEBUG
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static gboolean
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gtk_arg_debug_cb (const char *key, const char *value, gpointer user_data)
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{
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gtk_debug_flags |= g_parse_debug_string (value,
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gtk_debug_keys,
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G_N_ELEMENTS (gtk_debug_keys));
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return TRUE;
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}
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static gboolean
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gtk_arg_no_debug_cb (const char *key, const char *value, gpointer user_data)
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{
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gtk_debug_flags &= ~g_parse_debug_string (value,
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gtk_debug_keys,
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G_N_ELEMENTS (gtk_debug_keys));
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return TRUE;
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}
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#endif /* G_ENABLE_DEBUG */
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static gboolean
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gtk_arg_module_cb (const char *key, const char *value, gpointer user_data)
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{
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if (value && *value)
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{
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if (gtk_modules_string)
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g_string_append_c (gtk_modules_string, G_SEARCHPATH_SEPARATOR);
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else
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gtk_modules_string = g_string_new (NULL);
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g_string_append (gtk_modules_string, value);
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}
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return TRUE;
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}
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static const GOptionEntry gtk_args[] = {
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{ "gtk-module", 0, 0, G_OPTION_ARG_CALLBACK, gtk_arg_module_cb,
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/* Description of --gtk-module=MODULES in --help output */ N_("Load additional GTK+ modules"),
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/* Placeholder in --gtk-module=MODULES in --help output */ N_("MODULES") },
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{ "g-fatal-warnings", 0, 0, G_OPTION_ARG_NONE, &g_fatal_warnings,
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/* Description of --g-fatal-warnings in --help output */ N_("Make all warnings fatal"), NULL },
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#ifdef G_ENABLE_DEBUG
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{ "gtk-debug", 0, 0, G_OPTION_ARG_CALLBACK, gtk_arg_debug_cb,
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/* Description of --gtk-debug=FLAGS in --help output */ N_("GTK+ debugging flags to set"),
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/* Placeholder in --gtk-debug=FLAGS in --help output */ N_("FLAGS") },
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{ "gtk-no-debug", 0, 0, G_OPTION_ARG_CALLBACK, gtk_arg_no_debug_cb,
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/* Description of --gtk-no-debug=FLAGS in --help output */ N_("GTK+ debugging flags to unset"),
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/* Placeholder in --gtk-no-debug=FLAGS in --help output */ N_("FLAGS") },
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#endif
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{ NULL }
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};
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|
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static void
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do_pre_parse_initialization (int *argc,
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char ***argv)
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{
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const gchar *env_string;
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|
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#if 0
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g_set_error_handler (gtk_error);
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g_set_warning_handler (gtk_warning);
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g_set_message_handler (gtk_message);
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g_set_print_handler (gtk_print);
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#endif
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if (do_setlocale)
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{
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if (!setlocale (LC_ALL, ""))
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g_warning ("Locale not supported by C library.\n\tUsing the fallback 'C' locale.");
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}
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gdk_pre_parse_libgtk_only ();
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gdk_event_handler_set ((GdkEventFunc)gtk_main_do_event, NULL, NULL);
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#ifdef G_ENABLE_DEBUG
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env_string = g_getenv ("GTK_DEBUG");
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if (env_string != NULL)
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|
{
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gtk_debug_flags = g_parse_debug_string (env_string,
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gtk_debug_keys,
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G_N_ELEMENTS (gtk_debug_keys));
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env_string = NULL;
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}
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|
#endif /* G_ENABLE_DEBUG */
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env_string = g_getenv ("GTK_MODULES");
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if (env_string)
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gtk_modules_string = g_string_new (env_string);
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|
}
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|
|
|
static void
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|
gettext_initialization (void)
|
|
{
|
|
#ifdef ENABLE_NLS
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|
bindtextdomain (GETTEXT_PACKAGE, GTK_LOCALEDIR);
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|
bindtextdomain (GETTEXT_PACKAGE "-properties", GTK_LOCALEDIR);
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|
# ifdef HAVE_BIND_TEXTDOMAIN_CODESET
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bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
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bind_textdomain_codeset (GETTEXT_PACKAGE "-properties", "UTF-8");
|
|
# endif
|
|
#endif
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}
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|
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static void
|
|
do_post_parse_initialization (int *argc,
|
|
char ***argv)
|
|
{
|
|
if (gtk_initialized)
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|
return;
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|
gettext_initialization ();
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|
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|
if (g_fatal_warnings)
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|
{
|
|
GLogLevelFlags fatal_mask;
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fatal_mask = g_log_set_always_fatal (G_LOG_FATAL_MASK);
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fatal_mask |= G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL;
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g_log_set_always_fatal (fatal_mask);
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}
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|
|
if (gtk_debug_flags & GTK_DEBUG_UPDATES)
|
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gdk_window_set_debug_updates (TRUE);
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|
|
|
{
|
|
/* Translate to default:RTL if you want your widgets
|
|
* to be RTL, otherwise translate to default:LTR.
|
|
* Do *not* translate it to "predefinito:LTR", if it
|
|
* it isn't default:LTR or default:RTL it will not work
|
|
*/
|
|
char *e = _("default:LTR");
|
|
if (strcmp (e, "default:RTL")==0) {
|
|
gtk_widget_set_default_direction (GTK_TEXT_DIR_RTL);
|
|
} else if (strcmp (e, "default:LTR")) {
|
|
g_warning ("Whoever translated default:LTR did so wrongly.\n");
|
|
}
|
|
}
|
|
|
|
gtk_type_init (0);
|
|
_gtk_accel_map_init ();
|
|
_gtk_rc_init ();
|
|
|
|
/* Set the 'initialized' flag.
|
|
*/
|
|
gtk_initialized = TRUE;
|
|
|
|
/* load gtk modules */
|
|
if (gtk_modules_string)
|
|
{
|
|
_gtk_modules_init (argc, argv, gtk_modules_string->str);
|
|
g_string_free (gtk_modules_string, TRUE);
|
|
}
|
|
}
|
|
|
|
|
|
typedef struct
|
|
{
|
|
gboolean open_default_display;
|
|
} OptionGroupInfo;
|
|
|
|
static gboolean
|
|
pre_parse_hook (GOptionContext *context,
|
|
GOptionGroup *group,
|
|
gpointer data,
|
|
GError **error)
|
|
{
|
|
do_pre_parse_initialization (NULL, NULL);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
post_parse_hook (GOptionContext *context,
|
|
GOptionGroup *group,
|
|
gpointer data,
|
|
GError **error)
|
|
{
|
|
OptionGroupInfo *info = data;
|
|
|
|
|
|
do_post_parse_initialization (NULL, NULL);
|
|
|
|
if (info->open_default_display)
|
|
{
|
|
if (gdk_display_open_default_libgtk_only () == NULL)
|
|
{
|
|
g_set_error (error,
|
|
G_OPTION_ERROR,
|
|
G_OPTION_ERROR_FAILED,
|
|
"cannot open display: %s",
|
|
gdk_get_display_arg_name ());
|
|
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/**
|
|
* gtk_get_option_group:
|
|
* @open_default_display: whether to open the default display
|
|
* when parsing the commandline arguments
|
|
*
|
|
* Returns a #GOptionGroup for the commandline arguments recognized
|
|
* by GTK+ and GDK. You should add this group to your #GOptionContext
|
|
* with g_option_context_add_group(), if you are using
|
|
* g_option_context_parse() to parse your commandline arguments.
|
|
*
|
|
* Returns a #GOptionGroup for the commandline arguments recognized
|
|
* by GTK+
|
|
*
|
|
* Since: 2.6
|
|
*/
|
|
GOptionGroup *
|
|
gtk_get_option_group (gboolean open_default_display)
|
|
{
|
|
GOptionGroup *group;
|
|
OptionGroupInfo *info;
|
|
|
|
gettext_initialization ();
|
|
|
|
info = g_new0 (OptionGroupInfo, 1);
|
|
info->open_default_display = open_default_display;
|
|
|
|
group = g_option_group_new ("gtk", _("GTK+ Options"), _("Show GTK+ Options"), info, g_free);
|
|
g_option_group_set_parse_hooks (group, pre_parse_hook, post_parse_hook);
|
|
|
|
gdk_add_option_entries_libgtk_only (group);
|
|
g_option_group_add_entries (group, gtk_args);
|
|
g_option_group_set_translation_domain (group, GETTEXT_PACKAGE);
|
|
|
|
return group;
|
|
}
|
|
|
|
/**
|
|
* gtk_init_with_args:
|
|
* @argc: a pointer to the number of command line arguments.
|
|
* @argv: a pointer to the array of command line arguments.
|
|
* @parameter_string: a string which is displayed in
|
|
* the first line of <option>--help</option> output, after
|
|
* <literal><replaceable>programname</replaceable> [OPTION...]</literal>
|
|
* @entries: a %NULL-terminated array of #GOptionEntry<!-- -->s
|
|
* describing the options of your program
|
|
* @translation_domain: a translation domain to use for translating
|
|
* the <option>--help</option> output for the options in @entries
|
|
* with gettext(), or %NULL
|
|
* @error: a return location for errors
|
|
*
|
|
* This function does the same work as gtk_init_check().
|
|
* Additionally, it allows you to add your own commandline options,
|
|
* and it automatically generates nicely formatted
|
|
* <option>--help</option> output. Note that your program will
|
|
* be terminated after writing out the help output.
|
|
*
|
|
* Returns: %TRUE if the GUI has been successfully initialized,
|
|
* %FALSE otherwise.
|
|
*
|
|
* Since: 2.6
|
|
*/
|
|
gboolean
|
|
gtk_init_with_args (int *argc,
|
|
char ***argv,
|
|
char *parameter_string,
|
|
GOptionEntry *entries,
|
|
char *translation_domain,
|
|
GError **error)
|
|
{
|
|
GOptionContext *context;
|
|
GOptionGroup *gtk_group;
|
|
gboolean retval;
|
|
|
|
if (gtk_initialized)
|
|
return TRUE;
|
|
|
|
gettext_initialization ();
|
|
|
|
if (!check_setugid ())
|
|
return FALSE;
|
|
|
|
gtk_group = gtk_get_option_group (TRUE);
|
|
|
|
context = g_option_context_new (parameter_string);
|
|
g_option_context_add_group (context, gtk_group);
|
|
|
|
if (entries)
|
|
g_option_context_add_main_entries (context, entries, translation_domain);
|
|
retval = g_option_context_parse (context, argc, argv, error);
|
|
|
|
g_option_context_free (context);
|
|
|
|
return retval;
|
|
}
|
|
|
|
|
|
/**
|
|
* gtk_parse_args:
|
|
* @argc: a pointer to the number of command line arguments.
|
|
* @argv: a pointer to the array of command line arguments.
|
|
*
|
|
* Parses command line arguments, and initializes global
|
|
* attributes of GTK+, but does not actually open a connection
|
|
* to a display. (See gdk_display_open(), gdk_get_display_arg_name())
|
|
*
|
|
* Any arguments used by GTK+ or GDK are removed from the array and
|
|
* @argc and @argv are updated accordingly.
|
|
*
|
|
* You shouldn't call this function explicitely if you are using
|
|
* gtk_init(), or gtk_init_check().
|
|
*
|
|
* Return value: %TRUE if initialization succeeded, otherwise %FALSE.
|
|
**/
|
|
gboolean
|
|
gtk_parse_args (int *argc,
|
|
char ***argv)
|
|
{
|
|
GOptionContext *option_context;
|
|
GOptionGroup *gtk_group;
|
|
GError *error = NULL;
|
|
|
|
if (gtk_initialized)
|
|
return TRUE;
|
|
|
|
gettext_initialization ();
|
|
|
|
if (!check_setugid ())
|
|
return FALSE;
|
|
|
|
option_context = g_option_context_new (NULL);
|
|
g_option_context_set_ignore_unknown_options (option_context, TRUE);
|
|
g_option_context_set_help_enabled (option_context, FALSE);
|
|
gtk_group = gtk_get_option_group (FALSE);
|
|
g_option_context_set_main_group (option_context, gtk_group);
|
|
if (!g_option_context_parse (option_context, argc, argv, &error))
|
|
{
|
|
g_warning ("%s", error->message);
|
|
g_error_free (error);
|
|
}
|
|
|
|
g_option_context_free (option_context);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
#ifdef G_PLATFORM_WIN32
|
|
#undef gtk_init_check
|
|
#endif
|
|
|
|
/**
|
|
* gtk_init_check:
|
|
* @argc: Address of the <parameter>argc</parameter> parameter of your
|
|
* main() function. Changed if any arguments were handled.
|
|
* @argv: Address of the <parameter>argv</parameter> parameter of main().
|
|
* Any parameters understood by gtk_init() are stripped before return.
|
|
*
|
|
* This function does the same work as gtk_init() with only
|
|
* a single change: It does not terminate the program if the GUI can't be
|
|
* initialized. Instead it returns %FALSE on failure.
|
|
*
|
|
* This way the application can fall back to some other means of communication
|
|
* with the user - for example a curses or command line interface.
|
|
*
|
|
* Return value: %TRUE if the GUI has been successfully initialized,
|
|
* %FALSE otherwise.
|
|
**/
|
|
gboolean
|
|
gtk_init_check (int *argc,
|
|
char ***argv)
|
|
{
|
|
if (!gtk_parse_args (argc, argv))
|
|
return FALSE;
|
|
|
|
return gdk_display_open_default_libgtk_only () != NULL;
|
|
}
|
|
|
|
#ifdef G_PLATFORM_WIN32
|
|
#undef gtk_init
|
|
#endif
|
|
|
|
/**
|
|
* gtk_init:
|
|
* @argc: Address of the <parameter>argc</parameter> parameter of your
|
|
* main() function. Changed if any arguments were handled.
|
|
* @argv: Address of the <parameter>argv</parameter> parameter of main().
|
|
* Any parameters understood by gtk_init() are stripped before return.
|
|
*
|
|
* Call this function before using any other GTK+ functions in your GUI
|
|
* applications. It will initialize everything needed to operate the
|
|
* toolkit and parses some standard command line options. @argc and
|
|
* @argv are adjusted accordingly so your own code will
|
|
* never see those standard arguments.
|
|
*
|
|
* Note that there are some alternative ways to initialize GTK+:
|
|
* if you are calling gtk_parse_args(), gtk_init_check(),
|
|
* gtk_init_with_args() or g_option_context_parse() with
|
|
* the option group returned by gtk_get_option_group(), you
|
|
* <emphasis>don't</emphasis> have to call gtk_init().
|
|
*
|
|
* <note><para>
|
|
* This function will terminate your program if it was unable to initialize
|
|
* the GUI for some reason. If you want your program to fall back to a
|
|
* textual interface you want to call gtk_init_check() instead.
|
|
* </para></note>
|
|
**/
|
|
void
|
|
gtk_init (int *argc, char ***argv)
|
|
{
|
|
if (!gtk_init_check (argc, argv))
|
|
{
|
|
const char *display_name_arg = gdk_get_display_arg_name ();
|
|
g_warning ("cannot open display: %s", display_name_arg ? display_name_arg : " ");
|
|
exit (1);
|
|
}
|
|
}
|
|
|
|
#ifdef G_PLATFORM_WIN32
|
|
|
|
static void
|
|
check_sizeof_GtkWindow (size_t sizeof_GtkWindow)
|
|
{
|
|
if (sizeof_GtkWindow != sizeof (GtkWindow))
|
|
g_error ("Incompatible build!\n"
|
|
"The code using GTK+ thinks GtkWindow is of different\n"
|
|
"size than it actually is in this build of GTK+.\n"
|
|
"On Windows, this probably means that you have compiled\n"
|
|
"your code with gcc without the -mms-bitfields switch,\n"
|
|
"or that you are using an unsupported compiler.");
|
|
}
|
|
|
|
/* In GTK+ 2.0 the GtkWindow struct actually is the same size in
|
|
* gcc-compiled code on Win32 whether compiled with -fnative-struct or
|
|
* not. Unfortunately this wan't noticed until after GTK+ 2.0.1. So,
|
|
* from GTK+ 2.0.2 on, check some other struct, too, where the use of
|
|
* -fnative-struct still matters. GtkBox is one such.
|
|
*/
|
|
static void
|
|
check_sizeof_GtkBox (size_t sizeof_GtkBox)
|
|
{
|
|
if (sizeof_GtkBox != sizeof (GtkBox))
|
|
g_error ("Incompatible build!\n"
|
|
"The code using GTK+ thinks GtkBox is of different\n"
|
|
"size than it actually is in this build of GTK+.\n"
|
|
"On Windows, this probably means that you have compiled\n"
|
|
"your code with gcc without the -mms-bitfields switch,\n"
|
|
"or that you are using an unsupported compiler.");
|
|
}
|
|
|
|
/* These two functions might get more checks added later, thus pass
|
|
* in the number of extra args.
|
|
*/
|
|
void
|
|
gtk_init_abi_check (int *argc, char ***argv, int num_checks, size_t sizeof_GtkWindow, size_t sizeof_GtkBox)
|
|
{
|
|
check_sizeof_GtkWindow (sizeof_GtkWindow);
|
|
if (num_checks >= 2)
|
|
check_sizeof_GtkBox (sizeof_GtkBox);
|
|
gtk_init (argc, argv);
|
|
}
|
|
|
|
gboolean
|
|
gtk_init_check_abi_check (int *argc, char ***argv, int num_checks, size_t sizeof_GtkWindow, size_t sizeof_GtkBox)
|
|
{
|
|
check_sizeof_GtkWindow (sizeof_GtkWindow);
|
|
if (num_checks >= 2)
|
|
check_sizeof_GtkBox (sizeof_GtkBox);
|
|
return gtk_init_check (argc, argv);
|
|
}
|
|
|
|
#endif
|
|
|
|
void
|
|
gtk_exit (gint errorcode)
|
|
{
|
|
exit (errorcode);
|
|
}
|
|
|
|
|
|
/**
|
|
* gtk_set_locale:
|
|
*
|
|
* Initializes internationalization support for GTK+. gtk_init()
|
|
* automatically does this, so there is typically no point
|
|
* in calling this function.
|
|
*
|
|
* If you are calling this function because you changed the locale
|
|
* after GTK+ is was initialized, then calling this function
|
|
* may help a bit. (Note, however, that changing the locale
|
|
* after GTK+ is initialized may produce inconsistent results and
|
|
* is not really supported.)
|
|
*
|
|
* In detail - sets the current locale according to the
|
|
* program environment. This is the same as calling the C library function
|
|
* <literal>setlocale (LC_ALL, "")</literal> but also takes care of the
|
|
* locale specific setup of the windowing system used by GDK.
|
|
*
|
|
* Returns: a string corresponding to the locale set, typically in the
|
|
* form lang_COUNTRY, where lang is an ISO-639 language code, and
|
|
* COUNTRY is an ISO-3166 country code. On Unix, this form matches the
|
|
* result of the setlocale(); it is also used on other machines, such as
|
|
* Windows, where the C library returns a different result. The string is
|
|
* owned by GTK+ and should not be modified or freed.
|
|
**/
|
|
gchar *
|
|
gtk_set_locale (void)
|
|
{
|
|
return gdk_set_locale ();
|
|
}
|
|
|
|
/**
|
|
* _gtk_get_lc_ctype:
|
|
*
|
|
* Return the Unix-style locale string for the language currently in
|
|
* effect. On Unix systems, this is the return value from
|
|
* <literal>setlocale(LC_CTYPE, NULL)</literal>, and the user can
|
|
* affect this through the environment variables LC_ALL, LC_CTYPE or
|
|
* LANG (checked in that order). The locale strings typically is in
|
|
* the form lang_COUNTRY, where lang is an ISO-639 language code, and
|
|
* COUNTRY is an ISO-3166 country code. For instance, sv_FI for
|
|
* Swedish as written in Finland or pt_BR for Portuguese as written in
|
|
* Brazil.
|
|
*
|
|
* On Windows, the C library doesn't use any such environment
|
|
* variables, and setting them won't affect the behaviour of functions
|
|
* like ctime(). The user sets the locale through the Regional Options
|
|
* in the Control Panel. The C library (in the setlocale() function)
|
|
* does not use country and language codes, but country and language
|
|
* names spelled out in English.
|
|
* However, this function does check the above environment
|
|
* variables, and does return a Unix-style locale string based on
|
|
* either said environment variables or the thread's current locale.
|
|
*
|
|
* Return value: a dynamically allocated string, free with g_free().
|
|
*/
|
|
|
|
gchar *
|
|
_gtk_get_lc_ctype (void)
|
|
{
|
|
#ifdef G_OS_WIN32
|
|
/* Somebody might try to set the locale for this process using the
|
|
* LANG or LC_ environment variables. The Microsoft C library
|
|
* doesn't know anything about them. You set the locale in the
|
|
* Control Panel. Setting these env vars won't have any affect on
|
|
* locale-dependent C library functions like ctime(). But just for
|
|
* kicks, do obey LC_ALL, LC_CTYPE and LANG in GTK. (This also makes
|
|
* it easier to test GTK and Pango in various default languages, you
|
|
* don't have to clickety-click in the Control Panel, you can simply
|
|
* start the program with LC_ALL=something on the command line.)
|
|
*/
|
|
gchar *p;
|
|
|
|
p = getenv ("LC_ALL");
|
|
if (p != NULL)
|
|
return g_strdup (p);
|
|
|
|
p = getenv ("LC_CTYPE");
|
|
if (p != NULL)
|
|
return g_strdup (p);
|
|
|
|
p = getenv ("LANG");
|
|
if (p != NULL)
|
|
return g_strdup (p);
|
|
|
|
return g_win32_getlocale ();
|
|
#else
|
|
return g_strdup (setlocale (LC_CTYPE, NULL));
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* gtk_get_default_language:
|
|
*
|
|
* Returns the #PangoLanguage for the default language currently in
|
|
* effect. (Note that this can change over the life of an
|
|
* application.) The default language is derived from the current
|
|
* locale. It determines, for example, whether GTK+ uses the
|
|
* right-to-left or left-to-right text direction. See
|
|
* _gtk_get_lc_ctype() for notes on behaviour on Windows.
|
|
*
|
|
* Return value: the default language as a #PangoLanguage, must not be
|
|
* freed
|
|
**/
|
|
PangoLanguage *
|
|
gtk_get_default_language (void)
|
|
{
|
|
gchar *lang;
|
|
PangoLanguage *result;
|
|
gchar *p;
|
|
|
|
lang = _gtk_get_lc_ctype ();
|
|
p = strchr (lang, '.');
|
|
if (p)
|
|
*p = '\0';
|
|
p = strchr (lang, '@');
|
|
if (p)
|
|
*p = '\0';
|
|
|
|
result = pango_language_from_string (lang);
|
|
g_free (lang);
|
|
|
|
return result;
|
|
}
|
|
|
|
void
|
|
gtk_main (void)
|
|
{
|
|
GList *tmp_list;
|
|
GList *functions;
|
|
GtkInitFunction *init;
|
|
GMainLoop *loop;
|
|
|
|
gtk_main_loop_level++;
|
|
|
|
loop = g_main_loop_new (NULL, TRUE);
|
|
main_loops = g_slist_prepend (main_loops, loop);
|
|
|
|
tmp_list = functions = init_functions;
|
|
init_functions = NULL;
|
|
|
|
while (tmp_list)
|
|
{
|
|
init = tmp_list->data;
|
|
tmp_list = tmp_list->next;
|
|
|
|
(* init->function) (init->data);
|
|
g_free (init);
|
|
}
|
|
g_list_free (functions);
|
|
|
|
if (g_main_loop_is_running (main_loops->data))
|
|
{
|
|
GDK_THREADS_LEAVE ();
|
|
g_main_loop_run (loop);
|
|
GDK_THREADS_ENTER ();
|
|
gdk_flush ();
|
|
}
|
|
|
|
if (quit_functions)
|
|
{
|
|
GList *reinvoke_list = NULL;
|
|
GtkQuitFunction *quitf;
|
|
|
|
while (quit_functions)
|
|
{
|
|
quitf = quit_functions->data;
|
|
|
|
tmp_list = quit_functions;
|
|
quit_functions = g_list_remove_link (quit_functions, quit_functions);
|
|
g_list_free_1 (tmp_list);
|
|
|
|
if ((quitf->main_level && quitf->main_level != gtk_main_loop_level) ||
|
|
gtk_quit_invoke_function (quitf))
|
|
{
|
|
reinvoke_list = g_list_prepend (reinvoke_list, quitf);
|
|
}
|
|
else
|
|
{
|
|
gtk_quit_destroy (quitf);
|
|
}
|
|
}
|
|
if (reinvoke_list)
|
|
{
|
|
GList *work;
|
|
|
|
work = g_list_last (reinvoke_list);
|
|
if (quit_functions)
|
|
quit_functions->prev = work;
|
|
work->next = quit_functions;
|
|
quit_functions = work;
|
|
}
|
|
|
|
gdk_flush ();
|
|
}
|
|
|
|
main_loops = g_slist_remove (main_loops, loop);
|
|
|
|
g_main_loop_unref (loop);
|
|
|
|
gtk_main_loop_level--;
|
|
|
|
/* Try storing all clipboard data we have */
|
|
if (gtk_main_loop_level == 0)
|
|
_gtk_clipboard_store_all ();
|
|
}
|
|
|
|
guint
|
|
gtk_main_level (void)
|
|
{
|
|
return gtk_main_loop_level;
|
|
}
|
|
|
|
void
|
|
gtk_main_quit (void)
|
|
{
|
|
g_return_if_fail (main_loops != NULL);
|
|
|
|
g_main_loop_quit (main_loops->data);
|
|
}
|
|
|
|
gboolean
|
|
gtk_events_pending (void)
|
|
{
|
|
gboolean result;
|
|
|
|
GDK_THREADS_LEAVE ();
|
|
result = g_main_context_pending (NULL);
|
|
GDK_THREADS_ENTER ();
|
|
|
|
return result;
|
|
}
|
|
|
|
gboolean
|
|
gtk_main_iteration (void)
|
|
{
|
|
GDK_THREADS_LEAVE ();
|
|
g_main_context_iteration (NULL, TRUE);
|
|
GDK_THREADS_ENTER ();
|
|
|
|
if (main_loops)
|
|
return !g_main_loop_is_running (main_loops->data);
|
|
else
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
gtk_main_iteration_do (gboolean blocking)
|
|
{
|
|
GDK_THREADS_LEAVE ();
|
|
g_main_context_iteration (NULL, blocking);
|
|
GDK_THREADS_ENTER ();
|
|
|
|
if (main_loops)
|
|
return !g_main_loop_is_running (main_loops->data);
|
|
else
|
|
return TRUE;
|
|
}
|
|
|
|
/* private libgtk to libgdk interfaces
|
|
*/
|
|
gboolean gdk_pointer_grab_info_libgtk_only (GdkDisplay *display,
|
|
GdkWindow **grab_window,
|
|
gboolean *owner_events);
|
|
gboolean gdk_keyboard_grab_info_libgtk_only (GdkDisplay *display,
|
|
GdkWindow **grab_window,
|
|
gboolean *owner_events);
|
|
|
|
static void
|
|
rewrite_events_translate (GdkWindow *old_window,
|
|
GdkWindow *new_window,
|
|
gdouble *x,
|
|
gdouble *y)
|
|
{
|
|
gint old_origin_x, old_origin_y;
|
|
gint new_origin_x, new_origin_y;
|
|
|
|
gdk_window_get_origin (old_window, &old_origin_x, &old_origin_y);
|
|
gdk_window_get_origin (new_window, &new_origin_x, &new_origin_y);
|
|
|
|
*x += old_origin_x - new_origin_x;
|
|
*y += old_origin_y - new_origin_y;
|
|
}
|
|
|
|
static GdkEvent *
|
|
rewrite_event_for_window (GdkEvent *event,
|
|
GdkWindow *new_window)
|
|
{
|
|
event = gdk_event_copy (event);
|
|
|
|
switch (event->type)
|
|
{
|
|
case GDK_SCROLL:
|
|
rewrite_events_translate (event->any.window,
|
|
new_window,
|
|
&event->scroll.x, &event->scroll.y);
|
|
break;
|
|
case GDK_BUTTON_PRESS:
|
|
case GDK_2BUTTON_PRESS:
|
|
case GDK_3BUTTON_PRESS:
|
|
case GDK_BUTTON_RELEASE:
|
|
rewrite_events_translate (event->any.window,
|
|
new_window,
|
|
&event->button.x, &event->button.y);
|
|
break;
|
|
case GDK_MOTION_NOTIFY:
|
|
rewrite_events_translate (event->any.window,
|
|
new_window,
|
|
&event->motion.x, &event->motion.y);
|
|
break;
|
|
case GDK_KEY_PRESS:
|
|
case GDK_KEY_RELEASE:
|
|
case GDK_PROXIMITY_IN:
|
|
case GDK_PROXIMITY_OUT:
|
|
break;
|
|
|
|
default:
|
|
return event;
|
|
}
|
|
|
|
g_object_unref (event->any.window);
|
|
event->any.window = g_object_ref (new_window);
|
|
|
|
return event;
|
|
}
|
|
|
|
/* If there is a pointer or keyboard grab in effect with owner_events = TRUE,
|
|
* then what X11 does is deliver the event normally if it was going to this
|
|
* client, otherwise, delivers it in terms of the grab window. This function
|
|
* rewrites events to the effect that events going to the same window group
|
|
* are delivered normally, otherwise, the event is delivered in terms of the
|
|
* grab window.
|
|
*/
|
|
static GdkEvent *
|
|
rewrite_event_for_grabs (GdkEvent *event)
|
|
{
|
|
GdkWindow *grab_window;
|
|
GtkWidget *event_widget, *grab_widget;
|
|
gboolean owner_events;
|
|
GdkDisplay *display;
|
|
|
|
switch (event->type)
|
|
{
|
|
case GDK_SCROLL:
|
|
case GDK_BUTTON_PRESS:
|
|
case GDK_2BUTTON_PRESS:
|
|
case GDK_3BUTTON_PRESS:
|
|
case GDK_BUTTON_RELEASE:
|
|
case GDK_MOTION_NOTIFY:
|
|
case GDK_PROXIMITY_IN:
|
|
case GDK_PROXIMITY_OUT:
|
|
display = gdk_drawable_get_display (event->proximity.window);
|
|
if (!gdk_pointer_grab_info_libgtk_only (display, &grab_window, &owner_events) ||
|
|
!owner_events)
|
|
return NULL;
|
|
break;
|
|
|
|
case GDK_KEY_PRESS:
|
|
case GDK_KEY_RELEASE:
|
|
display = gdk_drawable_get_display (event->key.window);
|
|
if (!gdk_keyboard_grab_info_libgtk_only (display, &grab_window, &owner_events) ||
|
|
!owner_events)
|
|
return NULL;
|
|
break;
|
|
|
|
default:
|
|
return NULL;
|
|
}
|
|
|
|
event_widget = gtk_get_event_widget (event);
|
|
gdk_window_get_user_data (grab_window, (void**) &grab_widget);
|
|
|
|
if (grab_widget &&
|
|
gtk_main_get_window_group (grab_widget) != gtk_main_get_window_group (event_widget))
|
|
return rewrite_event_for_window (event, grab_window);
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
gtk_main_do_event (GdkEvent *event)
|
|
{
|
|
GtkWidget *event_widget;
|
|
GtkWidget *grab_widget;
|
|
GtkWindowGroup *window_group;
|
|
GdkEvent *next_event;
|
|
GdkEvent *rewritten_event = NULL;
|
|
GList *tmp_list;
|
|
|
|
/* If there are any events pending then get the next one.
|
|
*/
|
|
next_event = gdk_event_peek ();
|
|
|
|
/* Try to compress enter/leave notify events. These event
|
|
* pairs occur when the mouse is dragged quickly across
|
|
* a window with many buttons (or through a menu). Instead
|
|
* of highlighting and de-highlighting each widget that
|
|
* is crossed it is better to simply de-highlight the widget
|
|
* which contained the mouse initially and highlight the
|
|
* widget which ends up containing the mouse.
|
|
*/
|
|
if (next_event)
|
|
if (((event->type == GDK_ENTER_NOTIFY) ||
|
|
(event->type == GDK_LEAVE_NOTIFY)) &&
|
|
((next_event->type == GDK_ENTER_NOTIFY) ||
|
|
(next_event->type == GDK_LEAVE_NOTIFY)) &&
|
|
(next_event->type != event->type) &&
|
|
(next_event->any.window == event->any.window))
|
|
{
|
|
/* Throw both the peeked copy and the queued copy away
|
|
*/
|
|
gdk_event_free (next_event);
|
|
next_event = gdk_event_get ();
|
|
gdk_event_free (next_event);
|
|
|
|
return;
|
|
}
|
|
|
|
if (next_event)
|
|
gdk_event_free (next_event);
|
|
|
|
if (event->type == GDK_SETTING)
|
|
{
|
|
_gtk_settings_handle_event (&event->setting);
|
|
return;
|
|
}
|
|
|
|
if (event->type == GDK_OWNER_CHANGE)
|
|
{
|
|
_gtk_clipboard_handle_event (&event->owner_change);
|
|
return;
|
|
}
|
|
|
|
/* Find the widget which got the event. We store the widget
|
|
* in the user_data field of GdkWindow's.
|
|
* Ignore the event if we don't have a widget for it, except
|
|
* for GDK_PROPERTY_NOTIFY events which are handled specialy.
|
|
* Though this happens rarely, bogus events can occour
|
|
* for e.g. destroyed GdkWindows.
|
|
*/
|
|
event_widget = gtk_get_event_widget (event);
|
|
if (!event_widget)
|
|
{
|
|
/* To handle selection INCR transactions, we select
|
|
* PropertyNotify events on the requestor window and create
|
|
* a corresponding (fake) GdkWindow so that events get
|
|
* here. There won't be a widget though, so we have to handle
|
|
* them specially
|
|
*/
|
|
if (event->type == GDK_PROPERTY_NOTIFY)
|
|
_gtk_selection_incr_event (event->any.window,
|
|
&event->property);
|
|
|
|
return;
|
|
}
|
|
|
|
/* If pointer or keyboard grabs are in effect, munge the events
|
|
* so that each window group looks like a separate app.
|
|
*/
|
|
rewritten_event = rewrite_event_for_grabs (event);
|
|
if (rewritten_event)
|
|
{
|
|
event = rewritten_event;
|
|
event_widget = gtk_get_event_widget (event);
|
|
}
|
|
|
|
window_group = gtk_main_get_window_group (event_widget);
|
|
|
|
/* Push the event onto a stack of current events for
|
|
* gtk_current_event_get().
|
|
*/
|
|
current_events = g_list_prepend (current_events, event);
|
|
|
|
/* If there is a grab in effect...
|
|
*/
|
|
if (window_group->grabs)
|
|
{
|
|
grab_widget = window_group->grabs->data;
|
|
|
|
/* If the grab widget is an ancestor of the event widget
|
|
* then we send the event to the original event widget.
|
|
* This is the key to implementing modality.
|
|
*/
|
|
if (GTK_WIDGET_IS_SENSITIVE (event_widget) &&
|
|
gtk_widget_is_ancestor (event_widget, grab_widget))
|
|
grab_widget = event_widget;
|
|
}
|
|
else
|
|
{
|
|
grab_widget = event_widget;
|
|
}
|
|
|
|
/* Not all events get sent to the grabbing widget.
|
|
* The delete, destroy, expose, focus change and resize
|
|
* events still get sent to the event widget because
|
|
* 1) these events have no meaning for the grabbing widget
|
|
* and 2) redirecting these events to the grabbing widget
|
|
* could cause the display to be messed up.
|
|
*
|
|
* Drag events are also not redirected, since it isn't
|
|
* clear what the semantics of that would be.
|
|
*/
|
|
switch (event->type)
|
|
{
|
|
case GDK_NOTHING:
|
|
break;
|
|
|
|
case GDK_DELETE:
|
|
g_object_ref (event_widget);
|
|
if ((!window_group->grabs || gtk_widget_get_toplevel (window_group->grabs->data) == event_widget) &&
|
|
!gtk_widget_event (event_widget, event))
|
|
gtk_widget_destroy (event_widget);
|
|
g_object_unref (event_widget);
|
|
break;
|
|
|
|
case GDK_DESTROY:
|
|
/* Unexpected GDK_DESTROY from the outside, ignore for
|
|
* child windows, handle like a GDK_DELETE for toplevels
|
|
*/
|
|
if (!event_widget->parent)
|
|
{
|
|
g_object_ref (event_widget);
|
|
if (!gtk_widget_event (event_widget, event) &&
|
|
GTK_WIDGET_REALIZED (event_widget))
|
|
gtk_widget_destroy (event_widget);
|
|
g_object_unref (event_widget);
|
|
}
|
|
break;
|
|
|
|
case GDK_EXPOSE:
|
|
if (event->any.window && GTK_WIDGET_DOUBLE_BUFFERED (event_widget))
|
|
{
|
|
gdk_window_begin_paint_region (event->any.window, event->expose.region);
|
|
gtk_widget_send_expose (event_widget, event);
|
|
gdk_window_end_paint (event->any.window);
|
|
}
|
|
else
|
|
gtk_widget_send_expose (event_widget, event);
|
|
break;
|
|
|
|
case GDK_PROPERTY_NOTIFY:
|
|
case GDK_NO_EXPOSE:
|
|
case GDK_FOCUS_CHANGE:
|
|
case GDK_CONFIGURE:
|
|
case GDK_MAP:
|
|
case GDK_UNMAP:
|
|
case GDK_SELECTION_CLEAR:
|
|
case GDK_SELECTION_REQUEST:
|
|
case GDK_SELECTION_NOTIFY:
|
|
case GDK_CLIENT_EVENT:
|
|
case GDK_VISIBILITY_NOTIFY:
|
|
case GDK_WINDOW_STATE:
|
|
case GDK_GRAB_BROKEN:
|
|
case GDK_DAMAGE:
|
|
gtk_widget_event (event_widget, event);
|
|
break;
|
|
|
|
case GDK_SCROLL:
|
|
case GDK_BUTTON_PRESS:
|
|
case GDK_2BUTTON_PRESS:
|
|
case GDK_3BUTTON_PRESS:
|
|
gtk_propagate_event (grab_widget, event);
|
|
break;
|
|
|
|
case GDK_KEY_PRESS:
|
|
case GDK_KEY_RELEASE:
|
|
if (key_snoopers)
|
|
{
|
|
if (gtk_invoke_key_snoopers (grab_widget, event))
|
|
break;
|
|
}
|
|
/* else fall through */
|
|
case GDK_MOTION_NOTIFY:
|
|
case GDK_BUTTON_RELEASE:
|
|
case GDK_PROXIMITY_IN:
|
|
case GDK_PROXIMITY_OUT:
|
|
gtk_propagate_event (grab_widget, event);
|
|
break;
|
|
|
|
case GDK_ENTER_NOTIFY:
|
|
if (GTK_WIDGET_IS_SENSITIVE (grab_widget))
|
|
{
|
|
g_object_ref (event_widget);
|
|
|
|
gtk_widget_event (grab_widget, event);
|
|
if (event_widget == grab_widget)
|
|
GTK_PRIVATE_SET_FLAG (event_widget, GTK_LEAVE_PENDING);
|
|
|
|
g_object_unref (event_widget);
|
|
}
|
|
break;
|
|
|
|
case GDK_LEAVE_NOTIFY:
|
|
if (GTK_WIDGET_LEAVE_PENDING (event_widget))
|
|
{
|
|
GTK_PRIVATE_UNSET_FLAG (event_widget, GTK_LEAVE_PENDING);
|
|
gtk_widget_event (event_widget, event);
|
|
}
|
|
else if (GTK_WIDGET_IS_SENSITIVE (grab_widget))
|
|
gtk_widget_event (grab_widget, event);
|
|
break;
|
|
|
|
case GDK_DRAG_STATUS:
|
|
case GDK_DROP_FINISHED:
|
|
_gtk_drag_source_handle_event (event_widget, event);
|
|
break;
|
|
case GDK_DRAG_ENTER:
|
|
case GDK_DRAG_LEAVE:
|
|
case GDK_DRAG_MOTION:
|
|
case GDK_DROP_START:
|
|
_gtk_drag_dest_handle_event (event_widget, event);
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
|
|
tmp_list = current_events;
|
|
current_events = g_list_remove_link (current_events, tmp_list);
|
|
g_list_free_1 (tmp_list);
|
|
|
|
if (rewritten_event)
|
|
gdk_event_free (rewritten_event);
|
|
}
|
|
|
|
gboolean
|
|
gtk_true (void)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
gtk_false (void)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
static GtkWindowGroup *
|
|
gtk_main_get_window_group (GtkWidget *widget)
|
|
{
|
|
GtkWidget *toplevel = NULL;
|
|
|
|
if (widget)
|
|
toplevel = gtk_widget_get_toplevel (widget);
|
|
|
|
if (toplevel && GTK_IS_WINDOW (toplevel))
|
|
return gtk_window_get_group (GTK_WINDOW (toplevel));
|
|
else
|
|
return gtk_window_get_group (NULL);
|
|
}
|
|
|
|
typedef struct
|
|
{
|
|
GtkWidget *old_grab_widget;
|
|
GtkWidget *new_grab_widget;
|
|
gboolean was_grabbed;
|
|
gboolean is_grabbed;
|
|
} GrabNotifyInfo;
|
|
|
|
static void
|
|
gtk_grab_notify_foreach (GtkWidget *child,
|
|
gpointer data)
|
|
|
|
{
|
|
GrabNotifyInfo *info = data;
|
|
|
|
gboolean was_grabbed, is_grabbed, was_shadowed, is_shadowed;
|
|
|
|
was_grabbed = info->was_grabbed;
|
|
is_grabbed = info->is_grabbed;
|
|
|
|
info->was_grabbed = info->was_grabbed || (child == info->old_grab_widget);
|
|
info->is_grabbed = info->is_grabbed || (child == info->new_grab_widget);
|
|
|
|
was_shadowed = info->old_grab_widget && !info->was_grabbed;
|
|
is_shadowed = info->new_grab_widget && !info->is_grabbed;
|
|
|
|
g_object_ref (child);
|
|
|
|
if (was_shadowed != is_shadowed)
|
|
_gtk_widget_grab_notify (child, was_shadowed);
|
|
|
|
if (GTK_IS_CONTAINER (child))
|
|
gtk_container_foreach (GTK_CONTAINER (child), gtk_grab_notify_foreach, info);
|
|
|
|
g_object_unref (child);
|
|
|
|
info->was_grabbed = was_grabbed;
|
|
info->is_grabbed = is_grabbed;
|
|
}
|
|
|
|
static void
|
|
gtk_grab_notify (GtkWindowGroup *group,
|
|
GtkWidget *old_grab_widget,
|
|
GtkWidget *new_grab_widget)
|
|
{
|
|
GList *toplevels;
|
|
GrabNotifyInfo info;
|
|
|
|
if (old_grab_widget == new_grab_widget)
|
|
return;
|
|
|
|
info.old_grab_widget = old_grab_widget;
|
|
info.new_grab_widget = new_grab_widget;
|
|
|
|
g_object_ref (group);
|
|
|
|
toplevels = gtk_window_list_toplevels ();
|
|
g_list_foreach (toplevels, (GFunc)g_object_ref, NULL);
|
|
|
|
while (toplevels)
|
|
{
|
|
GtkWindow *toplevel = toplevels->data;
|
|
toplevels = g_list_delete_link (toplevels, toplevels);
|
|
|
|
info.was_grabbed = FALSE;
|
|
info.is_grabbed = FALSE;
|
|
|
|
if (group == gtk_window_get_group (toplevel))
|
|
gtk_container_foreach (GTK_CONTAINER (toplevel),
|
|
gtk_grab_notify_foreach, &info);
|
|
g_object_unref (toplevel);
|
|
}
|
|
|
|
g_object_unref (group);
|
|
}
|
|
|
|
void
|
|
gtk_grab_add (GtkWidget *widget)
|
|
{
|
|
GtkWindowGroup *group;
|
|
GtkWidget *old_grab_widget;
|
|
|
|
g_return_if_fail (widget != NULL);
|
|
|
|
if (!GTK_WIDGET_HAS_GRAB (widget) && GTK_WIDGET_IS_SENSITIVE (widget))
|
|
{
|
|
GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_GRAB);
|
|
|
|
group = gtk_main_get_window_group (widget);
|
|
|
|
if (group->grabs)
|
|
old_grab_widget = (GtkWidget *)group->grabs->data;
|
|
else
|
|
old_grab_widget = NULL;
|
|
|
|
g_object_ref (widget);
|
|
group->grabs = g_slist_prepend (group->grabs, widget);
|
|
|
|
gtk_grab_notify (group, old_grab_widget, widget);
|
|
}
|
|
}
|
|
|
|
GtkWidget*
|
|
gtk_grab_get_current (void)
|
|
{
|
|
GtkWindowGroup *group;
|
|
|
|
group = gtk_main_get_window_group (NULL);
|
|
|
|
if (group->grabs)
|
|
return GTK_WIDGET (group->grabs->data);
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
gtk_grab_remove (GtkWidget *widget)
|
|
{
|
|
GtkWindowGroup *group;
|
|
GtkWidget *new_grab_widget;
|
|
|
|
g_return_if_fail (widget != NULL);
|
|
|
|
if (GTK_WIDGET_HAS_GRAB (widget))
|
|
{
|
|
GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_GRAB);
|
|
|
|
group = gtk_main_get_window_group (widget);
|
|
group->grabs = g_slist_remove (group->grabs, widget);
|
|
|
|
if (group->grabs)
|
|
new_grab_widget = (GtkWidget *)group->grabs->data;
|
|
else
|
|
new_grab_widget = NULL;
|
|
|
|
gtk_grab_notify (group, widget, new_grab_widget);
|
|
|
|
g_object_unref (widget);
|
|
}
|
|
}
|
|
|
|
void
|
|
gtk_init_add (GtkFunction function,
|
|
gpointer data)
|
|
{
|
|
GtkInitFunction *init;
|
|
|
|
init = g_new (GtkInitFunction, 1);
|
|
init->function = function;
|
|
init->data = data;
|
|
|
|
init_functions = g_list_prepend (init_functions, init);
|
|
}
|
|
|
|
guint
|
|
gtk_key_snooper_install (GtkKeySnoopFunc snooper,
|
|
gpointer func_data)
|
|
{
|
|
GtkKeySnooperData *data;
|
|
static guint snooper_id = 1;
|
|
|
|
g_return_val_if_fail (snooper != NULL, 0);
|
|
|
|
data = g_new (GtkKeySnooperData, 1);
|
|
data->func = snooper;
|
|
data->func_data = func_data;
|
|
data->id = snooper_id++;
|
|
key_snoopers = g_slist_prepend (key_snoopers, data);
|
|
|
|
return data->id;
|
|
}
|
|
|
|
void
|
|
gtk_key_snooper_remove (guint snooper_id)
|
|
{
|
|
GtkKeySnooperData *data = NULL;
|
|
GSList *slist;
|
|
|
|
slist = key_snoopers;
|
|
while (slist)
|
|
{
|
|
data = slist->data;
|
|
if (data->id == snooper_id)
|
|
break;
|
|
|
|
slist = slist->next;
|
|
data = NULL;
|
|
}
|
|
if (data)
|
|
{
|
|
key_snoopers = g_slist_remove (key_snoopers, data);
|
|
g_free (data);
|
|
}
|
|
}
|
|
|
|
static gint
|
|
gtk_invoke_key_snoopers (GtkWidget *grab_widget,
|
|
GdkEvent *event)
|
|
{
|
|
GSList *slist;
|
|
gint return_val = FALSE;
|
|
|
|
slist = key_snoopers;
|
|
while (slist && !return_val)
|
|
{
|
|
GtkKeySnooperData *data;
|
|
|
|
data = slist->data;
|
|
slist = slist->next;
|
|
return_val = (*data->func) (grab_widget, (GdkEventKey*) event, data->func_data);
|
|
}
|
|
|
|
return return_val;
|
|
}
|
|
|
|
guint
|
|
gtk_quit_add_full (guint main_level,
|
|
GtkFunction function,
|
|
GtkCallbackMarshal marshal,
|
|
gpointer data,
|
|
GtkDestroyNotify destroy)
|
|
{
|
|
static guint quit_id = 1;
|
|
GtkQuitFunction *quitf;
|
|
|
|
g_return_val_if_fail ((function != NULL) || (marshal != NULL), 0);
|
|
|
|
quitf = g_slice_new (GtkQuitFunction);
|
|
|
|
quitf->id = quit_id++;
|
|
quitf->main_level = main_level;
|
|
quitf->function = function;
|
|
quitf->marshal = marshal;
|
|
quitf->data = data;
|
|
quitf->destroy = destroy;
|
|
|
|
quit_functions = g_list_prepend (quit_functions, quitf);
|
|
|
|
return quitf->id;
|
|
}
|
|
|
|
static void
|
|
gtk_quit_destroy (GtkQuitFunction *quitf)
|
|
{
|
|
if (quitf->destroy)
|
|
quitf->destroy (quitf->data);
|
|
g_slice_free (GtkQuitFunction, quitf);
|
|
}
|
|
|
|
static gint
|
|
gtk_quit_destructor (GtkObject **object_p)
|
|
{
|
|
if (*object_p)
|
|
gtk_object_destroy (*object_p);
|
|
g_free (object_p);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
void
|
|
gtk_quit_add_destroy (guint main_level,
|
|
GtkObject *object)
|
|
{
|
|
GtkObject **object_p;
|
|
|
|
g_return_if_fail (main_level > 0);
|
|
g_return_if_fail (GTK_IS_OBJECT (object));
|
|
|
|
object_p = g_new (GtkObject*, 1);
|
|
*object_p = object;
|
|
g_signal_connect (object,
|
|
"destroy",
|
|
G_CALLBACK (gtk_widget_destroyed),
|
|
object_p);
|
|
gtk_quit_add (main_level, (GtkFunction) gtk_quit_destructor, object_p);
|
|
}
|
|
|
|
guint
|
|
gtk_quit_add (guint main_level,
|
|
GtkFunction function,
|
|
gpointer data)
|
|
{
|
|
return gtk_quit_add_full (main_level, function, NULL, data, NULL);
|
|
}
|
|
|
|
void
|
|
gtk_quit_remove (guint id)
|
|
{
|
|
GtkQuitFunction *quitf;
|
|
GList *tmp_list;
|
|
|
|
tmp_list = quit_functions;
|
|
while (tmp_list)
|
|
{
|
|
quitf = tmp_list->data;
|
|
|
|
if (quitf->id == id)
|
|
{
|
|
quit_functions = g_list_remove_link (quit_functions, tmp_list);
|
|
g_list_free (tmp_list);
|
|
gtk_quit_destroy (quitf);
|
|
|
|
return;
|
|
}
|
|
|
|
tmp_list = tmp_list->next;
|
|
}
|
|
}
|
|
|
|
void
|
|
gtk_quit_remove_by_data (gpointer data)
|
|
{
|
|
GtkQuitFunction *quitf;
|
|
GList *tmp_list;
|
|
|
|
tmp_list = quit_functions;
|
|
while (tmp_list)
|
|
{
|
|
quitf = tmp_list->data;
|
|
|
|
if (quitf->data == data)
|
|
{
|
|
quit_functions = g_list_remove_link (quit_functions, tmp_list);
|
|
g_list_free (tmp_list);
|
|
gtk_quit_destroy (quitf);
|
|
|
|
return;
|
|
}
|
|
|
|
tmp_list = tmp_list->next;
|
|
}
|
|
}
|
|
|
|
guint
|
|
gtk_timeout_add_full (guint32 interval,
|
|
GtkFunction function,
|
|
GtkCallbackMarshal marshal,
|
|
gpointer data,
|
|
GtkDestroyNotify destroy)
|
|
{
|
|
if (marshal)
|
|
{
|
|
GtkClosure *closure;
|
|
|
|
closure = g_new (GtkClosure, 1);
|
|
closure->marshal = marshal;
|
|
closure->data = data;
|
|
closure->destroy = destroy;
|
|
|
|
return g_timeout_add_full (0, interval,
|
|
gtk_invoke_idle_timeout,
|
|
closure,
|
|
gtk_destroy_closure);
|
|
}
|
|
else
|
|
return g_timeout_add_full (0, interval, function, data, destroy);
|
|
}
|
|
|
|
guint
|
|
gtk_timeout_add (guint32 interval,
|
|
GtkFunction function,
|
|
gpointer data)
|
|
{
|
|
return g_timeout_add_full (0, interval, function, data, NULL);
|
|
}
|
|
|
|
void
|
|
gtk_timeout_remove (guint tag)
|
|
{
|
|
g_source_remove (tag);
|
|
}
|
|
|
|
guint
|
|
gtk_idle_add_full (gint priority,
|
|
GtkFunction function,
|
|
GtkCallbackMarshal marshal,
|
|
gpointer data,
|
|
GtkDestroyNotify destroy)
|
|
{
|
|
if (marshal)
|
|
{
|
|
GtkClosure *closure;
|
|
|
|
closure = g_new (GtkClosure, 1);
|
|
closure->marshal = marshal;
|
|
closure->data = data;
|
|
closure->destroy = destroy;
|
|
|
|
return g_idle_add_full (priority,
|
|
gtk_invoke_idle_timeout,
|
|
closure,
|
|
gtk_destroy_closure);
|
|
}
|
|
else
|
|
return g_idle_add_full (priority, function, data, destroy);
|
|
}
|
|
|
|
guint
|
|
gtk_idle_add (GtkFunction function,
|
|
gpointer data)
|
|
{
|
|
return g_idle_add_full (G_PRIORITY_DEFAULT_IDLE, function, data, NULL);
|
|
}
|
|
|
|
guint
|
|
gtk_idle_add_priority (gint priority,
|
|
GtkFunction function,
|
|
gpointer data)
|
|
{
|
|
return g_idle_add_full (priority, function, data, NULL);
|
|
}
|
|
|
|
void
|
|
gtk_idle_remove (guint tag)
|
|
{
|
|
g_source_remove (tag);
|
|
}
|
|
|
|
void
|
|
gtk_idle_remove_by_data (gpointer data)
|
|
{
|
|
if (!g_idle_remove_by_data (data))
|
|
g_warning ("gtk_idle_remove_by_data(%p): no such idle", data);
|
|
}
|
|
|
|
guint
|
|
gtk_input_add_full (gint source,
|
|
GdkInputCondition condition,
|
|
GdkInputFunction function,
|
|
GtkCallbackMarshal marshal,
|
|
gpointer data,
|
|
GtkDestroyNotify destroy)
|
|
{
|
|
if (marshal)
|
|
{
|
|
GtkClosure *closure;
|
|
|
|
closure = g_new (GtkClosure, 1);
|
|
closure->marshal = marshal;
|
|
closure->data = data;
|
|
closure->destroy = destroy;
|
|
|
|
return gdk_input_add_full (source,
|
|
condition,
|
|
(GdkInputFunction) gtk_invoke_input,
|
|
closure,
|
|
(GdkDestroyNotify) gtk_destroy_closure);
|
|
}
|
|
else
|
|
return gdk_input_add_full (source, condition, function, data, destroy);
|
|
}
|
|
|
|
void
|
|
gtk_input_remove (guint tag)
|
|
{
|
|
g_source_remove (tag);
|
|
}
|
|
|
|
static void
|
|
gtk_destroy_closure (gpointer data)
|
|
{
|
|
GtkClosure *closure = data;
|
|
|
|
if (closure->destroy)
|
|
(closure->destroy) (closure->data);
|
|
g_free (closure);
|
|
}
|
|
|
|
static gboolean
|
|
gtk_invoke_idle_timeout (gpointer data)
|
|
{
|
|
GtkClosure *closure = data;
|
|
|
|
GtkArg args[1];
|
|
gint ret_val = FALSE;
|
|
args[0].name = NULL;
|
|
args[0].type = G_TYPE_BOOLEAN;
|
|
args[0].d.pointer_data = &ret_val;
|
|
closure->marshal (NULL, closure->data, 0, args);
|
|
return ret_val;
|
|
}
|
|
|
|
static void
|
|
gtk_invoke_input (gpointer data,
|
|
gint source,
|
|
GdkInputCondition condition)
|
|
{
|
|
GtkClosure *closure = data;
|
|
|
|
GtkArg args[3];
|
|
args[0].type = G_TYPE_INT;
|
|
args[0].name = NULL;
|
|
GTK_VALUE_INT (args[0]) = source;
|
|
args[1].type = GDK_TYPE_INPUT_CONDITION;
|
|
args[1].name = NULL;
|
|
GTK_VALUE_FLAGS (args[1]) = condition;
|
|
args[2].type = G_TYPE_NONE;
|
|
args[2].name = NULL;
|
|
|
|
closure->marshal (NULL, closure->data, 2, args);
|
|
}
|
|
|
|
/**
|
|
* gtk_get_current_event:
|
|
*
|
|
* Obtains a copy of the event currently being processed by GTK+. For
|
|
* example, if you get a "clicked" signal from #GtkButton, the current
|
|
* event will be the #GdkEventButton that triggered the "clicked"
|
|
* signal. The returned event must be freed with gdk_event_free().
|
|
* If there is no current event, the function returns %NULL.
|
|
*
|
|
* Return value: a copy of the current event, or %NULL if no current event.
|
|
**/
|
|
GdkEvent*
|
|
gtk_get_current_event (void)
|
|
{
|
|
if (current_events)
|
|
return gdk_event_copy (current_events->data);
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* gtk_get_current_event_time:
|
|
*
|
|
* If there is a current event and it has a timestamp, return that
|
|
* timestamp, otherwise return %GDK_CURRENT_TIME.
|
|
*
|
|
* Return value: the timestamp from the current event, or %GDK_CURRENT_TIME.
|
|
**/
|
|
guint32
|
|
gtk_get_current_event_time (void)
|
|
{
|
|
if (current_events)
|
|
return gdk_event_get_time (current_events->data);
|
|
else
|
|
return GDK_CURRENT_TIME;
|
|
}
|
|
|
|
/**
|
|
* gtk_get_current_event_state:
|
|
* @state: a location to store the state of the current event
|
|
*
|
|
* If there is a current event and it has a state field, place
|
|
* that state field in @state and return %TRUE, otherwise return
|
|
* %FALSE.
|
|
*
|
|
* Return value: %TRUE if there was a current event and it had a state field
|
|
**/
|
|
gboolean
|
|
gtk_get_current_event_state (GdkModifierType *state)
|
|
{
|
|
g_return_val_if_fail (state != NULL, FALSE);
|
|
|
|
if (current_events)
|
|
return gdk_event_get_state (current_events->data, state);
|
|
else
|
|
{
|
|
*state = 0;
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_get_event_widget:
|
|
* @event: a #GdkEvent
|
|
*
|
|
* If @event is %NULL or the event was not associated with any widget,
|
|
* returns %NULL, otherwise returns the widget that received the event
|
|
* originally.
|
|
*
|
|
* Return value: the widget that originally received @event, or %NULL
|
|
**/
|
|
GtkWidget*
|
|
gtk_get_event_widget (GdkEvent *event)
|
|
{
|
|
GtkWidget *widget;
|
|
|
|
widget = NULL;
|
|
if (event && event->any.window &&
|
|
(event->type == GDK_DESTROY || !GDK_WINDOW_DESTROYED (event->any.window)))
|
|
gdk_window_get_user_data (event->any.window, (void**) &widget);
|
|
|
|
return widget;
|
|
}
|
|
|
|
static gint
|
|
gtk_quit_invoke_function (GtkQuitFunction *quitf)
|
|
{
|
|
if (!quitf->marshal)
|
|
return quitf->function (quitf->data);
|
|
else
|
|
{
|
|
GtkArg args[1];
|
|
gint ret_val = FALSE;
|
|
|
|
args[0].name = NULL;
|
|
args[0].type = G_TYPE_BOOLEAN;
|
|
args[0].d.pointer_data = &ret_val;
|
|
((GtkCallbackMarshal) quitf->marshal) (NULL,
|
|
quitf->data,
|
|
0, args);
|
|
return ret_val;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_propagate_event:
|
|
* @widget: a #GtkWidget
|
|
* @event: an event
|
|
*
|
|
* Sends an event to a widget, propagating the event to parent widgets
|
|
* if the event remains unhandled. Events received by GTK+ from GDK
|
|
* normally begin in gtk_main_do_event(). Depending on the type of
|
|
* event, existence of modal dialogs, grabs, etc., the event may be
|
|
* propagated; if so, this function is used. gtk_propagate_event()
|
|
* calls gtk_widget_event() on each widget it decides to send the
|
|
* event to. So gtk_widget_event() is the lowest-level function; it
|
|
* simply emits the "event" and possibly an event-specific signal on a
|
|
* widget. gtk_propagate_event() is a bit higher-level, and
|
|
* gtk_main_do_event() is the highest level.
|
|
*
|
|
* All that said, you most likely don't want to use any of these
|
|
* functions; synthesizing events is rarely needed. Consider asking on
|
|
* the mailing list for better ways to achieve your goals. For
|
|
* example, use gdk_window_invalidate_rect() or
|
|
* gtk_widget_queue_draw() instead of making up expose events.
|
|
*
|
|
**/
|
|
void
|
|
gtk_propagate_event (GtkWidget *widget,
|
|
GdkEvent *event)
|
|
{
|
|
gint handled_event;
|
|
|
|
g_return_if_fail (GTK_IS_WIDGET (widget));
|
|
g_return_if_fail (event != NULL);
|
|
|
|
handled_event = FALSE;
|
|
|
|
g_object_ref (widget);
|
|
|
|
if ((event->type == GDK_KEY_PRESS) ||
|
|
(event->type == GDK_KEY_RELEASE))
|
|
{
|
|
/* Only send key events within Window widgets to the Window
|
|
* The Window widget will in turn pass the
|
|
* key event on to the currently focused widget
|
|
* for that window.
|
|
*/
|
|
GtkWidget *window;
|
|
|
|
window = gtk_widget_get_toplevel (widget);
|
|
if (window && GTK_IS_WINDOW (window))
|
|
{
|
|
/* If there is a grab within the window, give the grab widget
|
|
* a first crack at the key event
|
|
*/
|
|
if (widget != window && GTK_WIDGET_HAS_GRAB (widget))
|
|
handled_event = gtk_widget_event (widget, event);
|
|
|
|
if (!handled_event)
|
|
{
|
|
window = gtk_widget_get_toplevel (widget);
|
|
if (window && GTK_IS_WINDOW (window))
|
|
{
|
|
if (GTK_WIDGET_IS_SENSITIVE (window))
|
|
gtk_widget_event (window, event);
|
|
}
|
|
}
|
|
|
|
handled_event = TRUE; /* don't send to widget */
|
|
}
|
|
}
|
|
|
|
/* Other events get propagated up the widget tree
|
|
* so that parents can see the button and motion
|
|
* events of the children.
|
|
*/
|
|
if (!handled_event)
|
|
{
|
|
while (TRUE)
|
|
{
|
|
GtkWidget *tmp;
|
|
|
|
/* Scroll events are special cased here because it
|
|
* feels wrong when scrolling a GtkViewport, say,
|
|
* to have children of the viewport eat the scroll
|
|
* event
|
|
*/
|
|
if (!GTK_WIDGET_IS_SENSITIVE (widget))
|
|
handled_event = event->type != GDK_SCROLL;
|
|
else
|
|
handled_event = gtk_widget_event (widget, event);
|
|
|
|
tmp = widget->parent;
|
|
g_object_unref (widget);
|
|
|
|
widget = tmp;
|
|
|
|
if (!handled_event && widget)
|
|
g_object_ref (widget);
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
g_object_unref (widget);
|
|
}
|
|
|
|
#if 0
|
|
static void
|
|
gtk_error (gchar *str)
|
|
{
|
|
gtk_print (str);
|
|
}
|
|
|
|
static void
|
|
gtk_warning (gchar *str)
|
|
{
|
|
gtk_print (str);
|
|
}
|
|
|
|
static void
|
|
gtk_message (gchar *str)
|
|
{
|
|
gtk_print (str);
|
|
}
|
|
|
|
static void
|
|
gtk_print (gchar *str)
|
|
{
|
|
static GtkWidget *window = NULL;
|
|
static GtkWidget *text;
|
|
static int level = 0;
|
|
GtkWidget *box1;
|
|
GtkWidget *box2;
|
|
GtkWidget *table;
|
|
GtkWidget *hscrollbar;
|
|
GtkWidget *vscrollbar;
|
|
GtkWidget *separator;
|
|
GtkWidget *button;
|
|
|
|
if (level > 0)
|
|
{
|
|
fputs (str, stdout);
|
|
fflush (stdout);
|
|
return;
|
|
}
|
|
|
|
if (!window)
|
|
{
|
|
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
|
|
|
|
gtk_signal_connect (GTK_OBJECT (window), "destroy",
|
|
(GtkSignalFunc) gtk_widget_destroyed,
|
|
&window);
|
|
|
|
gtk_window_set_title (GTK_WINDOW (window), "Messages");
|
|
|
|
box1 = gtk_vbox_new (FALSE, 0);
|
|
gtk_container_add (GTK_CONTAINER (window), box1);
|
|
gtk_widget_show (box1);
|
|
|
|
|
|
box2 = gtk_vbox_new (FALSE, 10);
|
|
gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
|
|
gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 0);
|
|
gtk_widget_show (box2);
|
|
|
|
|
|
table = gtk_table_new (2, 2, FALSE);
|
|
gtk_table_set_row_spacing (GTK_TABLE (table), 0, 2);
|
|
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 2);
|
|
gtk_box_pack_start (GTK_BOX (box2), table, TRUE, TRUE, 0);
|
|
gtk_widget_show (table);
|
|
|
|
text = gtk_text_new (NULL, NULL);
|
|
gtk_text_set_editable (GTK_TEXT (text), FALSE);
|
|
gtk_table_attach_defaults (GTK_TABLE (table), text, 0, 1, 0, 1);
|
|
gtk_widget_show (text);
|
|
gtk_widget_realize (text);
|
|
|
|
hscrollbar = gtk_hscrollbar_new (GTK_TEXT (text)->hadj);
|
|
gtk_table_attach (GTK_TABLE (table), hscrollbar, 0, 1, 1, 2,
|
|
GTK_EXPAND | GTK_FILL, GTK_FILL, 0, 0);
|
|
gtk_widget_show (hscrollbar);
|
|
|
|
vscrollbar = gtk_vscrollbar_new (GTK_TEXT (text)->vadj);
|
|
gtk_table_attach (GTK_TABLE (table), vscrollbar, 1, 2, 0, 1,
|
|
GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
|
|
gtk_widget_show (vscrollbar);
|
|
|
|
separator = gtk_hseparator_new ();
|
|
gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 0);
|
|
gtk_widget_show (separator);
|
|
|
|
|
|
box2 = gtk_vbox_new (FALSE, 10);
|
|
gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
|
|
gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, TRUE, 0);
|
|
gtk_widget_show (box2);
|
|
|
|
|
|
button = gtk_button_new_with_label ("close");
|
|
gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
|
|
(GtkSignalFunc) gtk_widget_hide,
|
|
GTK_OBJECT (window));
|
|
gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);
|
|
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
|
|
gtk_widget_grab_default (button);
|
|
gtk_widget_show (button);
|
|
}
|
|
|
|
level += 1;
|
|
gtk_text_insert (GTK_TEXT (text), NULL, NULL, NULL, str, -1);
|
|
level -= 1;
|
|
|
|
if (!GTK_WIDGET_VISIBLE (window))
|
|
gtk_widget_show (window);
|
|
}
|
|
#endif
|
|
|
|
gboolean
|
|
_gtk_boolean_handled_accumulator (GSignalInvocationHint *ihint,
|
|
GValue *return_accu,
|
|
const GValue *handler_return,
|
|
gpointer dummy)
|
|
{
|
|
gboolean continue_emission;
|
|
gboolean signal_handled;
|
|
|
|
signal_handled = g_value_get_boolean (handler_return);
|
|
g_value_set_boolean (return_accu, signal_handled);
|
|
continue_emission = !signal_handled;
|
|
|
|
return continue_emission;
|
|
}
|
|
|
|
#define __GTK_MAIN_C__
|
|
#include "gtkaliasdef.c"
|