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207757e70d
gtk2/gdk/gdk.c
Owen Taylor 207757e70d Destroy widgets _after_ propagating unrealize signals through the widget 
Mon Dec  7 10:27:09 1998  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtkwidget.c: Destroy widgets _after_ propagating unrealize
	signals through the widget heirarchy. This is unpleasant, as it
	causes more X traffic, but is necessary, because we have to clean
	up our Input Contexts before destroying the X windows.
	(from matsu-981109-0.patch)

Mon Dec  7 10:18:18 1998  Owen Taylor  <otaylor@redhat.com>

	Applied gtk-a-higuti-981202-0 :
	[ a-higuti@math.sci.hokudai.ac.jp (Akira Higuchi) ]

	* gdk/gdk.h gdk/gdk.c
		(gdk_mbstowcs): New function. Nearly equals to mbstowcs, but
			implemented by a combination of Xlib functions, so
			it works even with X_LOCALE.
		(gdk_wcstombs): New function.
		(g_mbtowc): Removed. No longer needed.

	* gdk/gdk.h gdk/gdkfont.c gdk/gdkdraw.c:
	        Added _wc() variants to gdk_text_width(),
		gdk_char_width(), gdk_draw_text(),

	* gdk/gdki18n.h
		(mblen, mbtowc, wctomb, mbstowcs, wcstombs,
		 wcslen, wcscpy, wcsncpy):
			Removed. No longer needed.
		(iswalnum): Removed.
		(gdk_iswalnum): New macro.
		(gdk_iswspace): New macro.
	* gdk/gdktype.h
		(GdkWChar): New typedef.

	* gtk/gtkentry.h, gtk/gtkentry.c
		There are many changes according to the change of the
		internal representation of text, from multibyte string
		to wide characters.
	* gtk/gtkprivate.h, gtk/gtkmain.c
		Removed the variable gtk_use_mb and related codes.
	* gtk/gtkspinbutton.c
		Some changes according to the change of type of entry->text.
	* gtk/gtktext.h, gtk/gtktext.c
		Changed the internal representation of text. We use GdkWchar
		if a fontset is supplied. If not, we use guchar to save
		memory.
1998-12-09 06:36:57 +00:00

3508 lines
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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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.
*/
#include "config.h"
/* If you don't want to use gdk's signal handlers define this */
/* #define I_NEED_TO_ACTUALLY_DEBUG_MY_PROGRAMS 1 */
#include <X11/Xlocale.h>
#include <ctype.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif /* HAVE_SYS_SELECT_H_ */
#define XLIB_ILLEGAL_ACCESS
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xos.h>
#include <X11/Xutil.h>
#include <X11/Xmu/WinUtil.h>
#include <X11/cursorfont.h>
#include "gdk.h"
#include "gdkprivate.h"
#include "gdkinput.h"
#include "gdki18n.h"
#include "gdkx.h"
#include "gdkkeysyms.h"
#ifndef X_GETTIMEOFDAY
#define X_GETTIMEOFDAY(tv) gettimeofday (tv, NULL)
#endif /* X_GETTIMEOFDAY */
#define DOUBLE_CLICK_TIME 250
#define TRIPLE_CLICK_TIME 500
#define DOUBLE_CLICK_DIST 5
#define TRIPLE_CLICK_DIST 5
#ifndef NO_FD_SET
# define SELECT_MASK fd_set
#else
# ifndef _AIX
typedef long fd_mask;
# endif
# if defined(_IBMR2)
# define SELECT_MASK void
# else
# define SELECT_MASK int
# endif
#endif
typedef struct _GdkInput GdkInput;
typedef struct _GdkPredicate GdkPredicate;
struct _GdkInput
{
gint tag;
gint source;
GdkInputCondition condition;
GdkInputFunction function;
gpointer data;
GdkDestroyNotify destroy;
};
struct _GdkPredicate
{
GdkEventFunc func;
gpointer data;
};
/*
* Private function declarations
*/
static GdkEvent *gdk_event_new (void);
static gint gdk_event_wait (void);
static gint gdk_event_apply_filters (XEvent *xevent,
GdkEvent *event,
GList *filters);
static gint gdk_event_translate (GdkEvent *event,
XEvent *xevent);
#if 0
static Bool gdk_event_get_type (Display *display,
XEvent *xevent,
XPointer arg);
#endif
static void gdk_synthesize_click (GdkEvent *event,
gint nclicks);
#ifndef HAVE_XCONVERTCASE
static void gdkx_XConvertCase (KeySym symbol,
KeySym *lower,
KeySym *upper);
#define XConvertCase gdkx_XConvertCase
#endif
/*
* old junk from offix, we might use it though so leave it
*/
Window gdk_get_client_window (Display *dpy,
Window win);
#ifdef WE_HAVE_MOTIF_DROPS_DONE
static GdkWindow * gdk_drop_get_real_window (GdkWindow *w,
guint16 *x,
guint16 *y);
#endif
static void gdk_exit_func (void);
static int gdk_x_error (Display *display,
XErrorEvent *error);
static int gdk_x_io_error (Display *display);
static RETSIGTYPE gdk_signal (int signum);
GdkFilterReturn gdk_wm_protocols_filter (GdkXEvent *xev,
GdkEvent *event,
gpointer data);
/* Private variable declarations
*/
static int gdk_initialized = 0; /* 1 if the library is initialized,
* 0 otherwise.
*/
static int connection_number = 0; /* The file descriptor number of our
* connection to the X server. This
* is used so that we may determine
* when events are pending by using
* the "select" system call.
*/
static struct timeval start; /* The time at which the library was
* last initialized.
*/
static struct timeval timer; /* Timeout interval to use in the call
* to "select". This is used in
* conjunction with "timerp" to create
* a maximum time to wait for an event
* to arrive.
*/
static struct timeval *timerp; /* The actual timer passed to "select"
* This may be NULL, in which case
* "select" will block until an event
* arrives.
*/
static guint32 timer_val; /* The timeout length as specified by
* the user in milliseconds.
*/
static GList *inputs; /* A list of the input file descriptors
* that we care about. Each list node
* contains a GdkInput struct that describes
* when we are interested in the specified
* file descriptor. That is, when it is
* available for read, write or has an
* exception pending.
*/
static guint32 button_click_time[2]; /* The last 2 button click times. Used
* to determine if the latest button click
* is part of a double or triple click.
*/
static GdkWindow *button_window[2]; /* The last 2 windows to receive button presses.
* Also used to determine if the latest button
* click is part of a double or triple click.
*/
static guint button_number[2]; /* The last 2 buttons to be pressed.
*/
static GdkWindowPrivate *xgrab_window = NULL; /* Window that currently holds the
* x pointer grab
*/
static GList *client_filters; /* Filters for client messages */
static GList *putback_events = NULL;
static gulong base_id;
static gint autorepeat;
#ifdef G_ENABLE_DEBUG
static const GDebugKey gdk_debug_keys[] = {
{"events", GDK_DEBUG_EVENTS},
{"misc", GDK_DEBUG_MISC},
{"dnd", GDK_DEBUG_DND},
{"color-context", GDK_DEBUG_COLOR_CONTEXT},
{"xim", GDK_DEBUG_XIM}
};
static const int gdk_ndebug_keys = sizeof(gdk_debug_keys)/sizeof(GDebugKey);
#endif /* G_ENABLE_DEBUG */
/*
*--------------------------------------------------------------
* gdk_init
*
* Initialize the library for use.
*
* Arguments:
* "argc" is the number of arguments.
* "argv" is an array of strings.
*
* Results:
* "argc" and "argv" are modified to reflect any arguments
* which were not handled. (Such arguments should either
* be handled by the application or dismissed).
*
* Side effects:
* The library is initialized.
*
*--------------------------------------------------------------
*/
void
gdk_init (int *argc,
char ***argv)
{
XKeyboardState keyboard_state;
gint synchronize;
gint i, j, k;
XClassHint *class_hint;
gchar **argv_orig = NULL;
gint argc_orig = 0;
if (gdk_initialized)
return;
if (argc && argv)
{
argc_orig = *argc;
argv_orig = g_malloc ((argc_orig + 1) * sizeof (char*));
for (i = 0; i < argc_orig; i++)
argv_orig[i] = g_strdup ((*argv)[i]);
argv_orig[argc_orig] = NULL;
}
X_GETTIMEOFDAY (&start);
#ifndef I_NEED_TO_ACTUALLY_DEBUG_MY_PROGRAMS
signal (SIGHUP, gdk_signal);
signal (SIGINT, gdk_signal);
signal (SIGQUIT, gdk_signal);
signal (SIGBUS, gdk_signal);
signal (SIGSEGV, gdk_signal);
signal (SIGPIPE, gdk_signal);
signal (SIGTERM, gdk_signal);
#endif
gdk_display_name = NULL;
XSetErrorHandler (gdk_x_error);
XSetIOErrorHandler (gdk_x_io_error);
synchronize = FALSE;
#ifdef G_ENABLE_DEBUG
{
gchar *debug_string = getenv("GDK_DEBUG");
if (debug_string != NULL)
gdk_debug_flags = g_parse_debug_string (debug_string,
gdk_debug_keys,
gdk_ndebug_keys);
}
#endif /* G_ENABLE_DEBUG */
if (argc && argv)
{
if (*argc > 0)
{
gchar *d;
d = strrchr((*argv)[0],'/');
if (d != NULL)
g_set_prgname (d + 1);
else
g_set_prgname ((*argv)[0]);
}
for (i = 1; i < *argc;)
{
#ifdef G_ENABLE_DEBUG
if ((strcmp ("--gdk-debug", (*argv)[i]) == 0) ||
(strncmp ("--gdk-debug=", (*argv)[i], 12) == 0))
{
gchar *equal_pos = strchr ((*argv)[i], '=');
if (equal_pos != NULL)
{
gdk_debug_flags |= g_parse_debug_string (equal_pos+1,
gdk_debug_keys,
gdk_ndebug_keys);
}
else if ((i + 1) < *argc && (*argv)[i + 1])
{
gdk_debug_flags |= g_parse_debug_string ((*argv)[i+1],
gdk_debug_keys,
gdk_ndebug_keys);
(*argv)[i] = NULL;
i += 1;
}
(*argv)[i] = NULL;
}
else if ((strcmp ("--gdk-no-debug", (*argv)[i]) == 0) ||
(strncmp ("--gdk-no-debug=", (*argv)[i], 15) == 0))
{
gchar *equal_pos = strchr ((*argv)[i], '=');
if (equal_pos != NULL)
{
gdk_debug_flags &= ~g_parse_debug_string (equal_pos+1,
gdk_debug_keys,
gdk_ndebug_keys);
}
else if ((i + 1) < *argc && (*argv)[i + 1])
{
gdk_debug_flags &= ~g_parse_debug_string ((*argv)[i+1],
gdk_debug_keys,
gdk_ndebug_keys);
(*argv)[i] = NULL;
i += 1;
}
(*argv)[i] = NULL;
}
else
#endif /* G_ENABLE_DEBUG */
if (strcmp ("--display", (*argv)[i]) == 0)
{
(*argv)[i] = NULL;
if ((i + 1) < *argc && (*argv)[i + 1])
{
gdk_display_name = g_strdup ((*argv)[i + 1]);
(*argv)[i + 1] = NULL;
i += 1;
}
}
else if (strcmp ("--sync", (*argv)[i]) == 0)
{
(*argv)[i] = NULL;
synchronize = TRUE;
}
else if (strcmp ("--no-xshm", (*argv)[i]) == 0)
{
(*argv)[i] = NULL;
gdk_use_xshm = FALSE;
}
else if (strcmp ("--name", (*argv)[i]) == 0)
{
if ((i + 1) < *argc && (*argv)[i + 1])
{
(*argv)[i++] = NULL;
g_set_prgname ((*argv)[i]);
(*argv)[i] = NULL;
}
}
else if (strcmp ("--class", (*argv)[i]) == 0)
{
if ((i + 1) < *argc && (*argv)[i + 1])
{
(*argv)[i++] = NULL;
gdk_progclass = (*argv)[i];
(*argv)[i] = NULL;
}
}
#ifdef XINPUT_GXI
else if (strcmp ("--gxid_host", (*argv)[i]) == 0)
{
if ((i + 1) < *argc && (*argv)[i + 1])
{
(*argv)[i++] = NULL;
gdk_input_gxid_host = ((*argv)[i]);
(*argv)[i] = NULL;
}
}
else if (strcmp ("--gxid_port", (*argv)[i]) == 0)
{
if ((i + 1) < *argc && (*argv)[i + 1])
{
(*argv)[i++] = NULL;
gdk_input_gxid_port = atoi ((*argv)[i]);
(*argv)[i] = NULL;
}
}
#endif
#ifdef USE_XIM
else if (strcmp ("--xim-preedit", (*argv)[i]) == 0)
{
if ((i + 1) < *argc && (*argv)[i + 1])
{
(*argv)[i++] = NULL;
if (strcmp ("none", (*argv)[i]) == 0)
gdk_im_set_best_style (GDK_IM_PREEDIT_NONE);
else if (strcmp ("nothing", (*argv)[i]) == 0)
gdk_im_set_best_style (GDK_IM_PREEDIT_NOTHING);
else if (strcmp ("area", (*argv)[i]) == 0)
gdk_im_set_best_style (GDK_IM_PREEDIT_AREA);
else if (strcmp ("position", (*argv)[i]) == 0)
gdk_im_set_best_style (GDK_IM_PREEDIT_POSITION);
else if (strcmp ("callbacks", (*argv)[i]) == 0)
gdk_im_set_best_style (GDK_IM_PREEDIT_CALLBACKS);
}
}
else if (strcmp ("--xim-status", (*argv)[i]) == 0)
{
if ((i + 1) < *argc && (*argv)[i + 1])
{
(*argv)[i++] = NULL;
if (strcmp ("none", (*argv)[i]) == 0)
gdk_im_set_best_style (GDK_IM_STATUS_NONE);
else if (strcmp ("nothing", (*argv)[i]) == 0)
gdk_im_set_best_style (GDK_IM_STATUS_NOTHING);
else if (strcmp ("area", (*argv)[i]) == 0)
gdk_im_set_best_style (GDK_IM_STATUS_AREA);
else if (strcmp ("callbacks", (*argv)[i]) == 0)
gdk_im_set_best_style (GDK_IM_STATUS_CALLBACKS);
}
}
#endif
i += 1;
}
for (i = 1; i < *argc; i++)
{
for (k = i; k < *argc; k++)
if ((*argv)[k] != NULL)
break;
if (k > i)
{
k -= i;
for (j = i + k; j < *argc; j++)
(*argv)[j-k] = (*argv)[j];
*argc -= k;
}
}
}
else
{
g_set_prgname ("<unknown>");
}
GDK_NOTE (MISC, g_message ("progname: \"%s\"", g_get_prgname ()));
gdk_display = XOpenDisplay (gdk_display_name);
if (!gdk_display)
{
g_warning ("cannot open display: %s", XDisplayName (gdk_display_name));
exit(1);
}
/* This is really crappy. We have to look into the display structure
* to find the base resource id. This is only needed for recording
* and playback of events.
*/
/* base_id = RESOURCE_BASE; */
base_id = 0;
GDK_NOTE (EVENTS, g_message ("base id: %lu", base_id));
connection_number = ConnectionNumber (gdk_display);
GDK_NOTE (MISC,
g_message ("connection number: %d", connection_number));
if (synchronize)
XSynchronize (gdk_display, True);
gdk_screen = DefaultScreen (gdk_display);
gdk_root_window = RootWindow (gdk_display, gdk_screen);
gdk_leader_window = XCreateSimpleWindow(gdk_display, gdk_root_window,
10, 10, 10, 10, 0, 0 , 0);
class_hint = XAllocClassHint();
class_hint->res_name = g_get_prgname ();
if (gdk_progclass == NULL)
{
gdk_progclass = g_strdup (g_get_prgname ());
gdk_progclass[0] = toupper (gdk_progclass[0]);
}
class_hint->res_class = gdk_progclass;
XSetClassHint(gdk_display, gdk_leader_window, class_hint);
XSetCommand(gdk_display, gdk_leader_window, argv_orig, argc_orig);
XFree (class_hint);
for (i = 0; i < argc_orig; i++)
g_free(argv_orig[i]);
g_free(argv_orig);
gdk_wm_delete_window = XInternAtom (gdk_display, "WM_DELETE_WINDOW", True);
gdk_wm_take_focus = XInternAtom (gdk_display, "WM_TAKE_FOCUS", True);
gdk_wm_protocols = XInternAtom (gdk_display, "WM_PROTOCOLS", True);
gdk_wm_window_protocols[0] = gdk_wm_delete_window;
gdk_wm_window_protocols[1] = gdk_wm_take_focus;
gdk_selection_property = XInternAtom (gdk_display, "GDK_SELECTION", False);
XGetKeyboardControl (gdk_display, &keyboard_state);
autorepeat = keyboard_state.global_auto_repeat;
timer.tv_sec = 0;
timer.tv_usec = 0;
timerp = NULL;
button_click_time[0] = 0;
button_click_time[1] = 0;
button_window[0] = NULL;
button_window[1] = NULL;
button_number[0] = -1;
button_number[1] = -1;
g_atexit (gdk_exit_func);
gdk_visual_init ();
gdk_window_init ();
gdk_image_init ();
gdk_input_init ();
gdk_dnd_init ();
gdk_add_client_message_filter (gdk_wm_protocols,
gdk_wm_protocols_filter, NULL);
#ifdef USE_XIM
gdk_im_open ();
#endif
gdk_initialized = 1;
}
/*
*--------------------------------------------------------------
* gdk_exit
*
* Restores the library to an un-itialized state and exits
* the program using the "exit" system call.
*
* Arguments:
* "errorcode" is the error value to pass to "exit".
*
* Results:
* Allocated structures are freed and the program exits
* cleanly.
*
* Side effects:
*
*--------------------------------------------------------------
*/
void
gdk_exit (int errorcode)
{
/* de-initialisation is done by the gdk_exit_funct(),
no need to do this here (Alex J.) */
exit (errorcode);
}
/*
*--------------------------------------------------------------
* gdk_set_locale
*
* Arguments:
*
* Results:
*
* Side effects:
*
*--------------------------------------------------------------
*/
gchar*
gdk_set_locale (void)
{
if (!setlocale (LC_ALL,""))
g_message ("locale not supported by C library");
if (!XSupportsLocale ())
{
g_message ("locale not supported by Xlib, locale set to C");
setlocale (LC_ALL, "C");
}
if (!XSetLocaleModifiers (""))
{
g_message ("can not set locale modifiers");
}
return setlocale (LC_ALL,NULL);
}
/*
*--------------------------------------------------------------
* gdk_events_pending
*
* Returns the number of events pending on the queue.
* These events have already been read from the server
* connection.
*
* Arguments:
*
* Results:
* Returns the number of events on XLib's event queue.
*
* Side effects:
*
*--------------------------------------------------------------
*/
gint
gdk_events_pending (void)
{
gint result;
GList *tmp_list;
result = XPending (gdk_display);
tmp_list = putback_events;
while (tmp_list)
{
result++;
tmp_list = tmp_list->next;
}
return result;
}
/*
*--------------------------------------------------------------
* gdk_event_get_graphics_expose
*
* Waits for a GraphicsExpose or NoExpose event
*
* Arguments:
*
* Results:
* For GraphicsExpose events, returns a pointer to the event
* converted into a GdkEvent Otherwise, returns NULL.
*
* Side effects:
*
*-------------------------------------------------------------- */
static Bool
graphics_expose_predicate (Display *display,
XEvent *xevent,
XPointer arg)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)arg;
g_return_val_if_fail (private != NULL, False);
if ((xevent->xany.window == private->xwindow) &&
((xevent->xany.type == GraphicsExpose) ||
(xevent->xany.type == NoExpose)))
return True;
else
return False;
}
GdkEvent *
gdk_event_get_graphics_expose (GdkWindow *window)
{
XEvent xevent;
GdkEvent *event;
g_return_val_if_fail (window != NULL, NULL);
XIfEvent (gdk_display, &xevent, graphics_expose_predicate, (XPointer)window);
if (xevent.xany.type == GraphicsExpose)
{
event = gdk_event_new ();
if (gdk_event_translate (event, &xevent))
return event;
else
gdk_event_free (event);
}
return NULL;
}
/************************
* Exposure compression *
************************/
/*
* The following implements simple exposure compression. It is
* modelled after the way Xt does exposure compression - in
* particular compress_expose = XtExposeCompressMultiple.
* It compress consecutive sequences of exposure events,
* but not sequences that cross other events. (This is because
* if it crosses a ConfigureNotify, we could screw up and
* mistakenly compress the exposures generated for the new
* size - could we just check for ConfigureNotify?)
*
* Xt compresses to a region / bounding rectangle, we compress
* to two rectangles, and try find the two rectangles of minimal
* area for this - this is supposed to handle the typical
* L-shaped regions generated by OpaqueMove.
*/
/* Given three rectangles, find the two rectangles that cover
* them with the smallest area.
*/
static void
gdk_add_rect_to_rects (GdkRectangle *rect1,
GdkRectangle *rect2,
GdkRectangle *new_rect)
{
GdkRectangle t1, t2, t3;
gint size1, size2, size3;
gdk_rectangle_union (rect1, rect2, &t1);
gdk_rectangle_union (rect1, new_rect, &t2);
gdk_rectangle_union (rect2, new_rect, &t3);
size1 = t1.width * t1.height + new_rect->width * new_rect->height;
size2 = t2.width * t2.height + rect2->width * rect2->height;
size3 = t1.width * t1.height + rect1->width * rect1->height;
if (size1 < size2)
{
if (size1 < size3)
{
*rect1 = t1;
*rect2 = *new_rect;
}
else
*rect2 = t3;
}
else
{
if (size2 < size3)
*rect1 = t2;
else
*rect2 = t3;
}
}
typedef struct _GdkExposeInfo GdkExposeInfo;
struct _GdkExposeInfo {
Window window;
gboolean seen_nonmatching;
};
Bool
expose_predicate (Display *display, XEvent *xevent, XPointer arg)
{
GdkExposeInfo *info = (GdkExposeInfo *)arg;
if (xevent->xany.type != Expose)
{
info->seen_nonmatching = TRUE;
}
if (info->seen_nonmatching || (xevent->xany.window != info->window))
return FALSE;
else
return TRUE;
}
void
gdk_compress_exposures (XEvent *xevent, GdkWindow *window)
{
gint nrects = 1;
gint count = 0;
GdkRectangle rect1;
GdkRectangle rect2;
GdkRectangle tmp_rect;
XEvent tmp_event;
GdkFilterReturn result;
GdkExposeInfo info;
GdkEvent event;
info.window = xevent->xany.window;
info.seen_nonmatching = FALSE;
rect1.x = xevent->xexpose.x;
rect1.y = xevent->xexpose.y;
rect1.width = xevent->xexpose.width;
rect1.height = xevent->xexpose.height;
while (1)
{
if (count == 0)
{
if (!XCheckIfEvent (gdk_display,
&tmp_event,
expose_predicate,
(XPointer)&info))
break;
}
else
XIfEvent (gdk_display,
&tmp_event,
expose_predicate,
(XPointer)&info);
/* We apply filters here, and if it was filtered, completely
* ignore the return
*/
result = gdk_event_apply_filters (xevent, &event,
window ?
((GdkWindowPrivate *)window)->filters
: gdk_default_filters);
if (result != GDK_FILTER_CONTINUE)
{
if (result == GDK_FILTER_TRANSLATE)
gdk_event_put (&event);
continue;
}
if (nrects == 1)
{
rect2.x = tmp_event.xexpose.x;
rect2.y = tmp_event.xexpose.y;
rect2.width = tmp_event.xexpose.width;
rect2.height = tmp_event.xexpose.height;
nrects++;
}
else
{
tmp_rect.x = tmp_event.xexpose.x;
tmp_rect.y = tmp_event.xexpose.y;
tmp_rect.width = tmp_event.xexpose.width;
tmp_rect.height = tmp_event.xexpose.height;
gdk_add_rect_to_rects (&rect1, &rect2, &tmp_rect);
}
count = tmp_event.xexpose.count;
}
if (nrects == 2)
{
gdk_rectangle_union (&rect1, &rect2, &tmp_rect);
if ((tmp_rect.width * tmp_rect.height) <
2 * (rect1.height * rect1.width +
rect2.height * rect2.width))
{
rect1 = tmp_rect;
nrects = 1;
}
}
if (nrects == 2)
{
event.expose.type = GDK_EXPOSE;
event.expose.window = window;
event.expose.area.x = rect2.x;
event.expose.area.y = rect2.y;
event.expose.area.width = rect2.width;
event.expose.area.height = rect2.height;
event.expose.count = 0;
gdk_event_put (&event);
}
xevent->xexpose.count = nrects - 1;
xevent->xexpose.x = rect1.x;
xevent->xexpose.y = rect1.y;
xevent->xexpose.width = rect1.width;
xevent->xexpose.height = rect1.height;
}
/*
*--------------------------------------------------------------
* gdk_event_get
*
* Gets the next event.
*
* Arguments:
*
* Results:
* If an event was received that we care about, returns
* a pointer to that event, to be freed with gdk_event_free.
* Otherwise, returns NULL. This function will also return
* before an event is received if the timeout interval
* runs out.
*
* Side effects:
*
*--------------------------------------------------------------
*/
GdkEvent *
gdk_event_get (void)
{
GdkEvent *event;
GList *temp_list;
XEvent xevent;
#if 0
if (pred)
{
temp_list = putback_events;
while (temp_list)
{
temp_event = temp_list->data;
if ((* pred) (temp_event, data))
{
if (event)
*event = *temp_event;
putback_events = g_list_remove_link (putback_events, temp_list);
g_list_free (temp_list);
return TRUE;
}
temp_list = temp_list->next;
}
event_pred.func = pred;
event_pred.data = data;
if (XCheckIfEvent (gdk_display, &xevent, gdk_event_get_type, (XPointer) & event_pred))
if (event)
return gdk_event_translate (event, &xevent);
}
else
#endif
if (putback_events)
{
event = putback_events->data;
temp_list = putback_events;
putback_events = g_list_remove_link (putback_events, temp_list);
g_list_free_1 (temp_list);
return event;
}
/* Wait for an event to occur or the timeout to elapse.
* If an event occurs "gdk_event_wait" will return TRUE.
* If the timeout elapses "gdk_event_wait" will return
* FALSE.
*/
if (gdk_event_wait ())
{
/* If we get here we can rest assurred that an event
* has occurred. Read it.
*/
#ifdef USE_XIM
Window w = None;
XNextEvent (gdk_display, &xevent);
if (gdk_xim_window)
switch (xevent.type)
{
case KeyPress:
case KeyRelease:
case ButtonPress:
case ButtonRelease:
w = GDK_WINDOW_XWINDOW (gdk_xim_window);
break;
}
if (XFilterEvent (&xevent, w))
return NULL;
#else
XNextEvent (gdk_display, &xevent);
#endif
event = gdk_event_new ();
event->any.type = GDK_NOTHING;
event->any.window = NULL;
event->any.send_event = FALSE;
event->any.send_event = xevent.xany.send_event;
if (gdk_event_translate (event, &xevent))
return event;
else
gdk_event_free (event);
}
return NULL;
}
void
gdk_event_put (GdkEvent *event)
{
GdkEvent *new_event;
g_return_if_fail (event != NULL);
new_event = gdk_event_copy (event);
putback_events = g_list_prepend (putback_events, new_event);
}
/*
*--------------------------------------------------------------
* gdk_event_copy
*
* Copy a event structure into new storage.
*
* Arguments:
* "event" is the event struct to copy.
*
* Results:
* A new event structure. Free it with gdk_event_free.
*
* Side effects:
* The reference count of the window in the event is increased.
*
*--------------------------------------------------------------
*/
static GMemChunk *event_chunk;
static GdkEvent*
gdk_event_new (void)
{
GdkEvent *new_event;
if (event_chunk == NULL)
event_chunk = g_mem_chunk_new ("events",
sizeof (GdkEvent),
4096,
G_ALLOC_AND_FREE);
new_event = g_chunk_new (GdkEvent, event_chunk);
return new_event;
}
GdkEvent*
gdk_event_copy (GdkEvent *event)
{
GdkEvent *new_event;
g_return_val_if_fail (event != NULL, NULL);
new_event = gdk_event_new ();
*new_event = *event;
gdk_window_ref (new_event->any.window);
switch (event->any.type)
{
case GDK_KEY_PRESS:
case GDK_KEY_RELEASE:
new_event->key.string = g_strdup (event->key.string);
break;
case GDK_ENTER_NOTIFY:
case GDK_LEAVE_NOTIFY:
if (event->crossing.subwindow != NULL)
gdk_window_ref (event->crossing.subwindow);
break;
case GDK_DRAG_ENTER:
case GDK_DRAG_LEAVE:
case GDK_DRAG_MOTION:
case GDK_DRAG_STATUS:
case GDK_DROP_START:
case GDK_DROP_FINISHED:
gdk_drag_context_ref (event->dnd.context);
break;
default:
break;
}
return new_event;
}
/*
*--------------------------------------------------------------
* gdk_event_free
*
* Free a event structure obtained from gdk_event_copy. Do not use
* with other event structures.
*
* Arguments:
* "event" is the event struct to free.
*
* Results:
*
* Side effects:
* The reference count of the window in the event is decreased and
* might be freed, too.
*
*-------------------------------------------------------------- */
void
gdk_event_free (GdkEvent *event)
{
g_assert (event_chunk != NULL);
g_return_if_fail (event != NULL);
if (event->any.window)
gdk_window_unref (event->any.window);
switch (event->any.type)
{
case GDK_KEY_PRESS:
case GDK_KEY_RELEASE:
g_free (event->key.string);
break;
case GDK_ENTER_NOTIFY:
case GDK_LEAVE_NOTIFY:
if (event->crossing.subwindow != NULL)
gdk_window_unref (event->crossing.subwindow);
break;
case GDK_DRAG_ENTER:
case GDK_DRAG_LEAVE:
case GDK_DRAG_MOTION:
case GDK_DRAG_STATUS:
case GDK_DROP_START:
case GDK_DROP_FINISHED:
gdk_drag_context_unref (event->dnd.context);
break;
default:
break;
}
g_mem_chunk_free (event_chunk, event);
}
/*
*--------------------------------------------------------------
* gdk_set_show_events
*
* Turns on/off the showing of events.
*
* Arguments:
* "show_events" is a boolean describing whether or
* not to show the events gdk receives.
*
* Results:
*
* Side effects:
* When "show_events" is TRUE, calls to "gdk_event_get"
* will output debugging informatin regarding the event
* received to stdout.
*
*--------------------------------------------------------------
*/
/*
*--------------------------------------------------------------
* gdk_event_get_time:
* Get the timestamp from an event.
* arguments:
* event:
* results:
* The event's time stamp, if it has one, otherwise
* GDK_CURRENT_TIME.
*--------------------------------------------------------------
*/
guint32
gdk_event_get_time (GdkEvent *event)
{
if (event)
switch (event->type)
{
case GDK_MOTION_NOTIFY:
return event->motion.time;
case GDK_BUTTON_PRESS:
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
case GDK_BUTTON_RELEASE:
return event->button.time;
case GDK_KEY_PRESS:
case GDK_KEY_RELEASE:
return event->key.time;
case GDK_ENTER_NOTIFY:
case GDK_LEAVE_NOTIFY:
return event->crossing.time;
case GDK_PROPERTY_NOTIFY:
return event->property.time;
case GDK_SELECTION_CLEAR:
case GDK_SELECTION_REQUEST:
case GDK_SELECTION_NOTIFY:
return event->selection.time;
case GDK_PROXIMITY_IN:
case GDK_PROXIMITY_OUT:
return event->proximity.time;
case GDK_DRAG_ENTER:
case GDK_DRAG_LEAVE:
case GDK_DRAG_MOTION:
case GDK_DRAG_STATUS:
case GDK_DROP_START:
case GDK_DROP_FINISHED:
return event->dnd.time;
default: /* use current time */
break;
}
return GDK_CURRENT_TIME;
}
void
gdk_set_show_events (int show_events)
{
if (show_events)
gdk_debug_flags |= GDK_DEBUG_EVENTS;
else
gdk_debug_flags &= ~GDK_DEBUG_EVENTS;
}
void
gdk_set_use_xshm (gint use_xshm)
{
gdk_use_xshm = use_xshm;
}
gint
gdk_get_show_events (void)
{
return gdk_debug_flags & GDK_DEBUG_EVENTS;
}
gint
gdk_get_use_xshm (void)
{
return gdk_use_xshm;
}
/*
*--------------------------------------------------------------
* gdk_time_get
*
* Get the number of milliseconds since the library was
* initialized.
*
* Arguments:
*
* Results:
* The time since the library was initialized is returned.
* This time value is accurate to milliseconds even though
* a more accurate time down to the microsecond could be
* returned.
*
* Side effects:
*
*--------------------------------------------------------------
*/
guint32
gdk_time_get (void)
{
struct timeval end;
struct timeval elapsed;
guint32 milliseconds;
X_GETTIMEOFDAY (&end);
if (start.tv_usec > end.tv_usec)
{
end.tv_usec += 1000000;
end.tv_sec--;
}
elapsed.tv_sec = end.tv_sec - start.tv_sec;
elapsed.tv_usec = end.tv_usec - start.tv_usec;
milliseconds = (elapsed.tv_sec * 1000) + (elapsed.tv_usec / 1000);
return milliseconds;
}
/*
*--------------------------------------------------------------
* gdk_timer_get
*
* Returns the current timer.
*
* Arguments:
*
* Results:
* Returns the current timer interval. This interval is
* in units of milliseconds.
*
* Side effects:
*
*--------------------------------------------------------------
*/
guint32
gdk_timer_get (void)
{
return timer_val;
}
/*
*--------------------------------------------------------------
* gdk_timer_set
*
* Sets the timer interval.
*
* Arguments:
* "milliseconds" is the new value for the timer.
*
* Results:
*
* Side effects:
* Calls to "gdk_event_get" will last for a maximum
* of time of "milliseconds". However, a value of 0
* milliseconds will cause "gdk_event_get" to block
* indefinately until an event is received.
*
*--------------------------------------------------------------
*/
void
gdk_timer_set (guint32 milliseconds)
{
timer_val = milliseconds;
timer.tv_sec = milliseconds / 1000;
timer.tv_usec = (milliseconds % 1000) * 1000;
}
void
gdk_timer_enable (void)
{
timerp = &timer;
}
void
gdk_timer_disable (void)
{
timerp = NULL;
}
gint
gdk_input_add_full (gint source,
GdkInputCondition condition,
GdkInputFunction function,
gpointer data,
GdkDestroyNotify destroy)
{
static gint next_tag = 1;
GList *list;
GdkInput *input;
gint tag;
tag = 0;
list = inputs;
while (list)
{
input = list->data;
list = list->next;
if ((input->source == source) && (input->condition == condition))
{
if (input->destroy)
(input->destroy) (input->data);
input->function = function;
input->data = data;
input->destroy = destroy;
tag = input->tag;
}
}
if (!tag)
{
input = g_new (GdkInput, 1);
input->tag = next_tag++;
input->source = source;
input->condition = condition;
input->function = function;
input->data = data;
input->destroy = destroy;
tag = input->tag;
inputs = g_list_prepend (inputs, input);
}
return tag;
}
gint
gdk_input_add (gint source,
GdkInputCondition condition,
GdkInputFunction function,
gpointer data)
{
return gdk_input_add_interp (source, condition, function, data, NULL);
}
void
gdk_input_remove (gint tag)
{
GList *list;
GdkInput *input;
list = inputs;
while (list)
{
input = list->data;
if (input->tag == tag)
{
if (input->destroy)
(input->destroy) (input->data);
input->tag = 0; /* do not free it here */
input->condition = 0; /* it's done in gdk_event_wait */
break;
}
list = list->next;
}
}
/*
*--------------------------------------------------------------
* gdk_pointer_grab
*
* Grabs the pointer to a specific window
*
* Arguments:
* "window" is the window which will receive the grab
* "owner_events" specifies whether events will be reported as is,
* or relative to "window"
* "event_mask" masks only interesting events
* "confine_to" limits the cursor movement to the specified window
* "cursor" changes the cursor for the duration of the grab
* "time" specifies the time
*
* Results:
*
* Side effects:
* requires a corresponding call to gdk_pointer_ungrab
*
*--------------------------------------------------------------
*/
gint
gdk_pointer_grab (GdkWindow * window,
gint owner_events,
GdkEventMask event_mask,
GdkWindow * confine_to,
GdkCursor * cursor,
guint32 time)
{
/* From gdkwindow.c */
extern const int nevent_masks;
extern const int event_mask_table[];
gint return_val;
GdkWindowPrivate *window_private;
GdkWindowPrivate *confine_to_private;
GdkCursorPrivate *cursor_private;
guint xevent_mask;
Window xwindow;
Window xconfine_to;
Cursor xcursor;
int i;
g_return_val_if_fail (window != NULL, 0);
window_private = (GdkWindowPrivate*) window;
confine_to_private = (GdkWindowPrivate*) confine_to;
cursor_private = (GdkCursorPrivate*) cursor;
xwindow = window_private->xwindow;
if (!confine_to || confine_to_private->destroyed)
xconfine_to = None;
else
xconfine_to = confine_to_private->xwindow;
if (!cursor)
xcursor = None;
else
xcursor = cursor_private->xcursor;
xevent_mask = 0;
for (i = 0; i < nevent_masks; i++)
{
if (event_mask & (1 << (i + 1)))
xevent_mask |= event_mask_table[i];
}
if (gdk_input_vtable.grab_pointer)
return_val = gdk_input_vtable.grab_pointer (window,
owner_events,
event_mask,
confine_to,
time);
else
return_val = Success;
if (return_val == Success)
{
if (!window_private->destroyed)
return_val = XGrabPointer (window_private->xdisplay,
xwindow,
owner_events,
xevent_mask,
GrabModeAsync, GrabModeAsync,
xconfine_to,
xcursor,
time);
else
return_val = AlreadyGrabbed;
}
if (return_val == GrabSuccess)
xgrab_window = window_private;
return return_val;
}
/*
*--------------------------------------------------------------
* gdk_pointer_ungrab
*
* Releases any pointer grab
*
* Arguments:
*
* Results:
*
* Side effects:
*
*--------------------------------------------------------------
*/
void
gdk_pointer_ungrab (guint32 time)
{
if (gdk_input_vtable.ungrab_pointer)
gdk_input_vtable.ungrab_pointer (time);
XUngrabPointer (gdk_display, time);
xgrab_window = NULL;
}
/*
*--------------------------------------------------------------
* gdk_pointer_is_grabbed
*
* Tell wether there is an active x pointer grab in effect
*
* Arguments:
*
* Results:
*
* Side effects:
*
*--------------------------------------------------------------
*/
gint
gdk_pointer_is_grabbed (void)
{
return xgrab_window != NULL;
}
/*
*--------------------------------------------------------------
* gdk_keyboard_grab
*
* Grabs the keyboard to a specific window
*
* Arguments:
* "window" is the window which will receive the grab
* "owner_events" specifies whether events will be reported as is,
* or relative to "window"
* "time" specifies the time
*
* Results:
*
* Side effects:
* requires a corresponding call to gdk_keyboard_ungrab
*
*--------------------------------------------------------------
*/
gint
gdk_keyboard_grab (GdkWindow * window,
gint owner_events,
guint32 time)
{
GdkWindowPrivate *window_private;
Window xwindow;
g_return_val_if_fail (window != NULL, 0);
window_private = (GdkWindowPrivate*) window;
xwindow = window_private->xwindow;
if (!window_private->destroyed)
return XGrabKeyboard (window_private->xdisplay,
xwindow,
owner_events,
GrabModeAsync, GrabModeAsync,
time);
else
return AlreadyGrabbed;
}
/*
*--------------------------------------------------------------
* gdk_keyboard_ungrab
*
* Releases any keyboard grab
*
* Arguments:
*
* Results:
*
* Side effects:
*
*--------------------------------------------------------------
*/
void
gdk_keyboard_ungrab (guint32 time)
{
XUngrabKeyboard (gdk_display, time);
}
/*
*--------------------------------------------------------------
* gdk_screen_width
*
* Return the width of the screen.
*
* Arguments:
*
* Results:
*
* Side effects:
*
*--------------------------------------------------------------
*/
gint
gdk_screen_width (void)
{
gint return_val;
return_val = DisplayWidth (gdk_display, gdk_screen);
return return_val;
}
/*
*--------------------------------------------------------------
* gdk_screen_height
*
* Return the height of the screen.
*
* Arguments:
*
* Results:
*
* Side effects:
*
*--------------------------------------------------------------
*/
gint
gdk_screen_height (void)
{
gint return_val;
return_val = DisplayHeight (gdk_display, gdk_screen);
return return_val;
}
/*
*--------------------------------------------------------------
* gdk_screen_width_mm
*
* Return the width of the screen in millimeters.
*
* Arguments:
*
* Results:
*
* Side effects:
*
*--------------------------------------------------------------
*/
gint
gdk_screen_width_mm (void)
{
gint return_val;
return_val = DisplayWidthMM (gdk_display, gdk_screen);
return return_val;
}
/*
*--------------------------------------------------------------
* gdk_screen_height
*
* Return the height of the screen in millimeters.
*
* Arguments:
*
* Results:
*
* Side effects:
*
*--------------------------------------------------------------
*/
gint
gdk_screen_height_mm (void)
{
gint return_val;
return_val = DisplayHeightMM (gdk_display, gdk_screen);
return return_val;
}
void
gdk_key_repeat_disable (void)
{
XAutoRepeatOff (gdk_display);
}
void
gdk_key_repeat_restore (void)
{
if (autorepeat)
XAutoRepeatOn (gdk_display);
else
XAutoRepeatOff (gdk_display);
}
/*
*--------------------------------------------------------------
* gdk_flush
*
* Flushes the Xlib output buffer and then waits
* until all requests have been received and processed
* by the X server. The only real use for this function
* is in dealing with XShm.
*
* Arguments:
*
* Results:
*
* Side effects:
*
*--------------------------------------------------------------
*/
void gdk_flush (void)
{
XSync (gdk_display, False);
}
void
gdk_beep (void)
{
XBell(gdk_display, 100);
}
/*
*--------------------------------------------------------------
* gdk_event_wait
*
* Waits until an event occurs or the timer runs out.
*
* Arguments:
*
* Results:
* Returns TRUE if an event is ready to be read and FALSE
* if the timer ran out.
*
* Side effects:
*
*--------------------------------------------------------------
*/
static gint
gdk_event_wait (void)
{
GList *list;
GList *temp_list;
GdkInput *input;
GdkInputCondition condition;
SELECT_MASK readfds;
SELECT_MASK writefds;
SELECT_MASK exceptfds;
int max_input;
int nfd;
/* If there are no events pending we will wait for an event.
* The time we wait is dependant on the "timer". If no timer
* has been specified then we'll block until an event arrives.
* If a timer has been specified we'll block until an event
* arrives or the timer expires. (This is all done using the
* "select" system call).
*/
if (XPending (gdk_display) == 0)
{
FD_ZERO (&readfds);
FD_ZERO (&writefds);
FD_ZERO (&exceptfds);
FD_SET (connection_number, &readfds);
max_input = connection_number;
list = inputs;
while (list)
{
input = list->data;
if (input->tag)
{
if (input->condition & GDK_INPUT_READ)
FD_SET (input->source, &readfds);
if (input->condition & GDK_INPUT_WRITE)
FD_SET (input->source, &writefds);
if (input->condition & GDK_INPUT_EXCEPTION)
FD_SET (input->source, &exceptfds);
max_input = MAX (max_input, input->source);
list = list->next;
}
else /* free removed inputs */
{
temp_list = list;
if (list->next)
list->next->prev = list->prev;
if (list->prev)
list->prev->next = list->next;
if (inputs == list)
inputs = list->next;
list = list->next;
temp_list->next = NULL;
temp_list->prev = NULL;
g_free (temp_list->data);
g_list_free (temp_list);
}
}
#ifdef USE_PTHREADS
if (gdk_using_threads)
{
gdk_select_waiting = TRUE;
FD_SET (gdk_threads_pipe[0], &readfds);
max_input = MAX (max_input, gdk_threads_pipe[0]);
gdk_threads_leave ();
}
#endif
nfd = select (max_input+1, &readfds, &writefds, &exceptfds, timerp);
#ifdef USE_PTHREADS
if (gdk_using_threads)
{
gchar c;
gdk_threads_enter ();
gdk_select_waiting = FALSE;
if (FD_ISSET (gdk_threads_pipe[0], &readfds))
read (gdk_threads_pipe[0], &c, 1);
}
#endif
timerp = NULL;
timer_val = 0;
if (nfd > 0)
{
if (FD_ISSET (connection_number, &readfds))
{
if (XPending (gdk_display) == 0)
{
if (nfd == 1)
{
XNoOp (gdk_display);
XFlush (gdk_display);
}
return FALSE;
}
else
return TRUE;
}
list = inputs;
while (list)
{
input = list->data;
list = list->next;
condition = 0;
if (FD_ISSET (input->source, &readfds))
condition |= GDK_INPUT_READ;
if (FD_ISSET (input->source, &writefds))
condition |= GDK_INPUT_WRITE;
if (FD_ISSET (input->source, &exceptfds))
condition |= GDK_INPUT_EXCEPTION;
if (condition && input->function)
(* input->function) (input->data, input->source, condition);
}
}
}
else
return TRUE;
return FALSE;
}
static gint
gdk_event_apply_filters (XEvent *xevent,
GdkEvent *event,
GList *filters)
{
GdkEventFilter *filter;
GList *tmp_list;
GdkFilterReturn result;
tmp_list = filters;
while (tmp_list)
{
filter = (GdkEventFilter *)tmp_list->data;
result = (*filter->function)(xevent, event, filter->data);
if (result != GDK_FILTER_CONTINUE)
return result;
tmp_list = tmp_list->next;
}
return GDK_FILTER_CONTINUE;
}
void
gdk_add_client_message_filter (GdkAtom message_type,
GdkFilterFunc func,
gpointer data)
{
GdkClientFilter *filter = g_new (GdkClientFilter, 1);
filter->type = message_type;
filter->function = func;
filter->data = data;
client_filters = g_list_prepend (client_filters, filter);
}
static gint
gdk_event_translate (GdkEvent *event,
XEvent *xevent)
{
GdkWindow *window;
GdkWindowPrivate *window_private;
static XComposeStatus compose;
KeySym keysym;
int charcount;
#ifdef USE_XIM
static gchar* buf = NULL;
static gint buf_len= 0;
#else
char buf[16];
#endif
gint return_val;
return_val = FALSE;
/* Find the GdkWindow that this event occurred in.
*
* We handle events with window=None
* specially - they are generated by XFree86's XInput under
* some circumstances.
*/
if ((xevent->xany.window == None) &&
gdk_input_vtable.window_none_event)
{
return_val = gdk_input_vtable.window_none_event (event,xevent);
if (return_val >= 0) /* was handled */
return return_val;
else
return_val = FALSE;
}
window = gdk_window_lookup (xevent->xany.window);
window_private = (GdkWindowPrivate *) window;
if (window != NULL)
gdk_window_ref (window);
event->any.window = window;
event->any.send_event = xevent->xany.send_event;
if (window_private && window_private->destroyed)
{
if (xevent->type != DestroyNotify)
return FALSE;
}
else
{
/* Check for filters for this window */
GdkFilterReturn result;
#ifdef USE_XIM
if (window == NULL &&
xevent->type == KeyPress &&
gdk_xim_window &&
!((GdkWindowPrivate *) gdk_xim_window)->destroyed)
{
/*
* If user presses a key in Preedit or Status window, keypress event
* is sometimes sent to these windows. These windows are not managed
* by GDK, so we redirect KeyPress event to gdk_xim_window.
*
* If someone want to use the window whitch is not managed by GDK
* and want to get KeyPress event, he/she must register the filter
* function to gdk_default_filters to intercept the event.
*/
window = gdk_xim_window;
window_private = (GdkWindowPrivate *) window;
gdk_window_ref (window);
event->any.window = window;
GDK_NOTE (XIM,
g_message ("KeyPress event is redirected to gdk_xim_window: %#lx",
xevent->xany.window));
}
#endif /* USE_XIM */
result = gdk_event_apply_filters (xevent, event,
window_private
?window_private->filters
:gdk_default_filters);
if (result != GDK_FILTER_CONTINUE)
return (result == GDK_FILTER_TRANSLATE) ? TRUE : FALSE;
}
if (window == NULL)
g_message ("Got event for unknown window: %#lx\n", xevent->xany.window);
/* We do a "manual" conversion of the XEvent to a
* GdkEvent. The structures are mostly the same so
* the conversion is fairly straightforward. We also
* optionally print debugging info regarding events
* received.
*/
return_val = TRUE;
switch (xevent->type)
{
case KeyPress:
/* Lookup the string corresponding to the given keysym.
*/
#ifdef USE_XIM
if (buf_len == 0)
{
buf_len = 128;
buf = g_new (gchar, buf_len);
}
keysym = GDK_VoidSymbol;
if (gdk_xim_ic && gdk_xim_ic->xic)
{
Status status;
/* Clear keyval. Depending on status, may not be set */
charcount = XmbLookupString(gdk_xim_ic->xic,
&xevent->xkey, buf, buf_len-1,
&keysym, &status);
if (status == XBufferOverflow)
{ /* retry */
/* alloc adequate size of buffer */
GDK_NOTE (XIM,
g_message("XIM: overflow (required %i)", charcount));
while (buf_len <= charcount)
buf_len *= 2;
buf = (gchar *) g_realloc (buf, buf_len);
charcount = XmbLookupString (gdk_xim_ic->xic,
&xevent->xkey, buf, buf_len-1,
&keysym, &status);
}
if (status == XLookupNone)
{
return_val = FALSE;
break;
}
}
else
charcount = XLookupString (&xevent->xkey, buf, buf_len,
&keysym, &compose);
#else
charcount = XLookupString (&xevent->xkey, buf, 16,
&keysym, &compose);
#endif
event->key.keyval = keysym;
if (charcount > 0 && buf[charcount-1] == '\0')
charcount --;
else
buf[charcount] = '\0';
/* Print debugging info.
*/
#ifdef G_ENABLE_DEBUG
if (gdk_debug_flags & GDK_DEBUG_EVENTS)
{
g_message ("key press:\twindow: %ld key: %12s %d",
xevent->xkey.window - base_id,
event->key.keyval ? XKeysymToString (event->key.keyval) : "(none)",
event->key.keyval);
if (charcount > 0)
g_message ("\t\tlength: %4d string: \"%s\"",
charcount, buf);
}
#endif /* G_ENABLE_DEBUG */
event->key.type = GDK_KEY_PRESS;
event->key.window = window;
event->key.time = xevent->xkey.time;
event->key.state = (GdkModifierType) xevent->xkey.state;
event->key.string = g_strdup (buf);
event->key.length = charcount;
break;
case KeyRelease:
/* Lookup the string corresponding to the given keysym.
*/
#ifdef USE_XIM
if (buf_len == 0)
{
buf_len = 128;
buf = g_new (gchar, buf_len);
}
#endif
keysym = GDK_VoidSymbol;
charcount = XLookupString (&xevent->xkey, buf, 16,
&keysym, &compose);
event->key.keyval = keysym;
/* Print debugging info.
*/
GDK_NOTE (EVENTS,
g_message ("key release:\t\twindow: %ld key: %12s %d",
xevent->xkey.window - base_id,
XKeysymToString (event->key.keyval),
event->key.keyval));
event->key.type = GDK_KEY_RELEASE;
event->key.window = window;
event->key.time = xevent->xkey.time;
event->key.state = (GdkModifierType) xevent->xkey.state;
event->key.length = 0;
event->key.string = NULL;
break;
case ButtonPress:
/* Print debugging info.
*/
GDK_NOTE (EVENTS,
g_message ("button press:\t\twindow: %ld x,y: %d %d button: %d",
xevent->xbutton.window - base_id,
xevent->xbutton.x, xevent->xbutton.y,
xevent->xbutton.button));
if (window_private &&
(window_private->extension_events != 0) &&
gdk_input_ignore_core)
{
return_val = FALSE;
break;
}
event->button.type = GDK_BUTTON_PRESS;
event->button.window = window;
event->button.time = xevent->xbutton.time;
event->button.x = xevent->xbutton.x;
event->button.y = xevent->xbutton.y;
event->button.x_root = (gfloat)xevent->xbutton.x_root;
event->button.y_root = (gfloat)xevent->xbutton.y_root;
event->button.pressure = 0.5;
event->button.xtilt = 0;
event->button.ytilt = 0;
event->button.state = (GdkModifierType) xevent->xbutton.state;
event->button.button = xevent->xbutton.button;
event->button.source = GDK_SOURCE_MOUSE;
event->button.deviceid = GDK_CORE_POINTER;
if ((event->button.time < (button_click_time[1] + TRIPLE_CLICK_TIME)) &&
(event->button.window == button_window[1]) &&
(event->button.button == button_number[1]))
{
gdk_synthesize_click (event, 3);
button_click_time[1] = 0;
button_click_time[0] = 0;
button_window[1] = NULL;
button_window[0] = 0;
button_number[1] = -1;
button_number[0] = -1;
}
else if ((event->button.time < (button_click_time[0] + DOUBLE_CLICK_TIME)) &&
(event->button.window == button_window[0]) &&
(event->button.button == button_number[0]))
{
gdk_synthesize_click (event, 2);
button_click_time[1] = button_click_time[0];
button_click_time[0] = event->button.time;
button_window[1] = button_window[0];
button_window[0] = event->button.window;
button_number[1] = button_number[0];
button_number[0] = event->button.button;
}
else
{
button_click_time[1] = 0;
button_click_time[0] = event->button.time;
button_window[1] = NULL;
button_window[0] = event->button.window;
button_number[1] = -1;
button_number[0] = event->button.button;
}
break;
case ButtonRelease:
/* Print debugging info.
*/
GDK_NOTE (EVENTS,
g_message ("button release:\twindow: %ld x,y: %d %d button: %d",
xevent->xbutton.window - base_id,
xevent->xbutton.x, xevent->xbutton.y,
xevent->xbutton.button));
if (window_private &&
(window_private->extension_events != 0) &&
gdk_input_ignore_core)
{
return_val = FALSE;
break;
}
event->button.type = GDK_BUTTON_RELEASE;
event->button.window = window;
event->button.time = xevent->xbutton.time;
event->button.x = xevent->xbutton.x;
event->button.y = xevent->xbutton.y;
event->button.x_root = (gfloat)xevent->xbutton.x_root;
event->button.y_root = (gfloat)xevent->xbutton.y_root;
event->button.pressure = 0.5;
event->button.xtilt = 0;
event->button.ytilt = 0;
event->button.state = (GdkModifierType) xevent->xbutton.state;
event->button.button = xevent->xbutton.button;
event->button.source = GDK_SOURCE_MOUSE;
event->button.deviceid = GDK_CORE_POINTER;
break;
case MotionNotify:
/* Print debugging info.
*/
GDK_NOTE (EVENTS,
g_message ("motion notify:\t\twindow: %ld x,y: %d %d hint: %s",
xevent->xmotion.window - base_id,
xevent->xmotion.x, xevent->xmotion.y,
(xevent->xmotion.is_hint) ? "true" : "false"));
if (window_private &&
(window_private->extension_events != 0) &&
gdk_input_ignore_core)
{
return_val = FALSE;
break;
}
event->motion.type = GDK_MOTION_NOTIFY;
event->motion.window = window;
event->motion.time = xevent->xmotion.time;
event->motion.x = xevent->xmotion.x;
event->motion.y = xevent->xmotion.y;
event->motion.x_root = (gfloat)xevent->xmotion.x_root;
event->motion.y_root = (gfloat)xevent->xmotion.y_root;
event->motion.pressure = 0.5;
event->motion.xtilt = 0;
event->motion.ytilt = 0;
event->motion.state = (GdkModifierType) xevent->xmotion.state;
event->motion.is_hint = xevent->xmotion.is_hint;
event->motion.source = GDK_SOURCE_MOUSE;
event->motion.deviceid = GDK_CORE_POINTER;
break;
case EnterNotify:
/* Print debugging info.
*/
GDK_NOTE (EVENTS,
g_message ("enter notify:\t\twindow: %ld detail: %d subwin: %ld",
xevent->xcrossing.window - base_id,
xevent->xcrossing.detail,
xevent->xcrossing.subwindow - base_id));
/* Tell XInput stuff about it if appropriate */
if (window_private &&
!window_private->destroyed &&
(window_private->extension_events != 0) &&
gdk_input_vtable.enter_event)
gdk_input_vtable.enter_event (&xevent->xcrossing, window);
event->crossing.type = GDK_ENTER_NOTIFY;
event->crossing.window = window;
/* If the subwindow field of the XEvent is non-NULL, then
* lookup the corresponding GdkWindow.
*/
if (xevent->xcrossing.subwindow != None)
event->crossing.subwindow = gdk_window_lookup (xevent->xcrossing.subwindow);
else
event->crossing.subwindow = NULL;
event->crossing.time = xevent->xcrossing.time;
event->crossing.x = xevent->xcrossing.x;
event->crossing.y = xevent->xcrossing.y;
event->crossing.x_root = xevent->xcrossing.x_root;
event->crossing.y_root = xevent->xcrossing.y_root;
/* Translate the crossing mode into Gdk terms.
*/
switch (xevent->xcrossing.mode)
{
case NotifyNormal:
event->crossing.mode = GDK_CROSSING_NORMAL;
break;
case NotifyGrab:
event->crossing.mode = GDK_CROSSING_GRAB;
break;
case NotifyUngrab:
event->crossing.mode = GDK_CROSSING_UNGRAB;
break;
};
/* Translate the crossing detail into Gdk terms.
*/
switch (xevent->xcrossing.detail)
{
case NotifyInferior:
event->crossing.detail = GDK_NOTIFY_INFERIOR;
break;
case NotifyAncestor:
event->crossing.detail = GDK_NOTIFY_ANCESTOR;
break;
case NotifyVirtual:
event->crossing.detail = GDK_NOTIFY_VIRTUAL;
break;
case NotifyNonlinear:
event->crossing.detail = GDK_NOTIFY_NONLINEAR;
break;
case NotifyNonlinearVirtual:
event->crossing.detail = GDK_NOTIFY_NONLINEAR_VIRTUAL;
break;
default:
event->crossing.detail = GDK_NOTIFY_UNKNOWN;
break;
}
event->crossing.focus = xevent->xcrossing.focus;
event->crossing.state = xevent->xcrossing.state;
break;
case LeaveNotify:
/* Print debugging info.
*/
GDK_NOTE (EVENTS,
g_message ("leave notify:\t\twindow: %ld detail: %d subwin: %ld",
xevent->xcrossing.window - base_id,
xevent->xcrossing.detail, xevent->xcrossing.subwindow - base_id));
event->crossing.type = GDK_LEAVE_NOTIFY;
event->crossing.window = window;
/* If the subwindow field of the XEvent is non-NULL, then
* lookup the corresponding GdkWindow.
*/
if (xevent->xcrossing.subwindow != None)
event->crossing.subwindow = gdk_window_lookup (xevent->xcrossing.subwindow);
else
event->crossing.subwindow = NULL;
event->crossing.time = xevent->xcrossing.time;
event->crossing.x = xevent->xcrossing.x;
event->crossing.y = xevent->xcrossing.y;
event->crossing.x_root = xevent->xcrossing.x_root;
event->crossing.y_root = xevent->xcrossing.y_root;
/* Translate the crossing mode into Gdk terms.
*/
switch (xevent->xcrossing.mode)
{
case NotifyNormal:
event->crossing.mode = GDK_CROSSING_NORMAL;
break;
case NotifyGrab:
event->crossing.mode = GDK_CROSSING_GRAB;
break;
case NotifyUngrab:
event->crossing.mode = GDK_CROSSING_UNGRAB;
break;
};
/* Translate the crossing detail into Gdk terms.
*/
switch (xevent->xcrossing.detail)
{
case NotifyInferior:
event->crossing.detail = GDK_NOTIFY_INFERIOR;
break;
case NotifyAncestor:
event->crossing.detail = GDK_NOTIFY_ANCESTOR;
break;
case NotifyVirtual:
event->crossing.detail = GDK_NOTIFY_VIRTUAL;
break;
case NotifyNonlinear:
event->crossing.detail = GDK_NOTIFY_NONLINEAR;
break;
case NotifyNonlinearVirtual:
event->crossing.detail = GDK_NOTIFY_NONLINEAR_VIRTUAL;
break;
default:
event->crossing.detail = GDK_NOTIFY_UNKNOWN;
break;
}
event->crossing.focus = xevent->xcrossing.focus;
event->crossing.state = xevent->xcrossing.state;
break;
case FocusIn:
case FocusOut:
/* We only care about focus events that indicate that _this_
* window (not a ancestor or child) got or lost the focus
*/
switch (xevent->xfocus.detail)
{
case NotifyAncestor:
case NotifyInferior:
case NotifyNonlinear:
/* Print debugging info.
*/
GDK_NOTE (EVENTS,
g_message ("focus %s:\t\twindow: %ld",
(xevent->xany.type == FocusIn) ? "in" : "out",
xevent->xfocus.window - base_id));
/* gdk_keyboard_grab() causes following events. These events confuse
* the XIM focus, so ignore them.
*/
if (xevent->xfocus.mode == NotifyGrab ||
xevent->xfocus.mode == NotifyUngrab)
break;
event->focus_change.type = GDK_FOCUS_CHANGE;
event->focus_change.window = window;
event->focus_change.in = (xevent->xany.type == FocusIn);
break;
default:
return_val = FALSE;
}
break;
case KeymapNotify:
/* Print debugging info.
*/
GDK_NOTE (EVENTS,
g_message ("keymap notify"));
/* Not currently handled */
return_val = FALSE;
break;
case Expose:
/* Print debugging info.
*/
GDK_NOTE (EVENTS,
g_message ("expose:\t\twindow: %ld %d x,y: %d %d w,h: %d %d",
xevent->xexpose.window - base_id, xevent->xexpose.count,
xevent->xexpose.x, xevent->xexpose.y,
xevent->xexpose.width, xevent->xexpose.height));
gdk_compress_exposures (xevent, window);
event->expose.type = GDK_EXPOSE;
event->expose.window = window;
event->expose.area.x = xevent->xexpose.x;
event->expose.area.y = xevent->xexpose.y;
event->expose.area.width = xevent->xexpose.width;
event->expose.area.height = xevent->xexpose.height;
event->expose.count = xevent->xexpose.count;
break;
case GraphicsExpose:
/* Print debugging info.
*/
GDK_NOTE (EVENTS,
g_message ("graphics expose:\tdrawable: %ld",
xevent->xgraphicsexpose.drawable - base_id));
event->expose.type = GDK_EXPOSE;
event->expose.window = window;
event->expose.area.x = xevent->xgraphicsexpose.x;
event->expose.area.y = xevent->xgraphicsexpose.y;
event->expose.area.width = xevent->xgraphicsexpose.width;
event->expose.area.height = xevent->xgraphicsexpose.height;
event->expose.count = xevent->xexpose.count;
break;
case NoExpose:
/* Print debugging info.
*/
GDK_NOTE (EVENTS,
g_message ("no expose:\t\tdrawable: %ld",
xevent->xnoexpose.drawable - base_id));
event->no_expose.type = GDK_NO_EXPOSE;
event->no_expose.window = window;
break;
case VisibilityNotify:
/* Print debugging info.
*/
#ifdef G_ENABLE_DEBUG
if (gdk_debug_flags & GDK_DEBUG_EVENTS)
switch (xevent->xvisibility.state)
{
case VisibilityFullyObscured:
g_message ("visibility notify:\twindow: %ld none",
xevent->xvisibility.window - base_id);
break;
case VisibilityPartiallyObscured:
g_message ("visibility notify:\twindow: %ld partial",
xevent->xvisibility.window - base_id);
break;
case VisibilityUnobscured:
g_message ("visibility notify:\twindow: %ld full",
xevent->xvisibility.window - base_id);
break;
}
#endif /* G_ENABLE_DEBUG */
event->visibility.type = GDK_VISIBILITY_NOTIFY;
event->visibility.window = window;
switch (xevent->xvisibility.state)
{
case VisibilityFullyObscured:
event->visibility.state = GDK_VISIBILITY_FULLY_OBSCURED;
break;
case VisibilityPartiallyObscured:
event->visibility.state = GDK_VISIBILITY_PARTIAL;
break;
case VisibilityUnobscured:
event->visibility.state = GDK_VISIBILITY_UNOBSCURED;
break;
}
break;
case CreateNotify:
/* Not currently handled */
break;
case DestroyNotify:
/* Print debugging info.
*/
GDK_NOTE (EVENTS,
g_message ("destroy notify:\twindow: %ld",
xevent->xdestroywindow.window - base_id));
event->any.type = GDK_DESTROY;
event->any.window = window;
return_val = window_private && !window_private->destroyed;
if(window && window_private->xwindow != GDK_ROOT_WINDOW())
gdk_window_destroy_notify (window);
break;
case UnmapNotify:
/* Print debugging info.
*/
GDK_NOTE (EVENTS,
g_message ("unmap notify:\t\twindow: %ld",
xevent->xmap.window - base_id));
event->any.type = GDK_UNMAP;
event->any.window = window;
if (xgrab_window == window_private)
xgrab_window = NULL;
break;
case MapNotify:
/* Print debugging info.
*/
GDK_NOTE (EVENTS,
g_message ("map notify:\t\twindow: %ld",
xevent->xmap.window - base_id));
event->any.type = GDK_MAP;
event->any.window = window;
break;
case ReparentNotify:
/* Print debugging info.
*/
GDK_NOTE (EVENTS,
g_message ("reparent notify:\twindow: %ld",
xevent->xreparent.window - base_id));
/* Not currently handled */
return_val = FALSE;
break;
case ConfigureNotify:
/* Print debugging info.
*/
while ((XPending (gdk_display) > 0) &&
XCheckTypedWindowEvent(gdk_display, xevent->xany.window,
ConfigureNotify, xevent))
{
GdkFilterReturn result;
GDK_NOTE (EVENTS,
g_message ("configure notify discarded:\twindow: %ld",
xevent->xconfigure.window - base_id));
result = gdk_event_apply_filters (xevent, event,
window_private
?window_private->filters
:gdk_default_filters);
/* If the result is GDK_FILTER_REMOVE, there will be
* trouble, but anybody who filtering the Configure events
* better know what they are doing
*/
if (result != GDK_FILTER_CONTINUE)
{
return (result == GDK_FILTER_TRANSLATE) ? TRUE : FALSE;
}
/*XSync (gdk_display, 0);*/
}
GDK_NOTE (EVENTS,
g_message ("configure notify:\twindow: %ld x,y: %d %d w,h: %d %d b-w: %d above: %ld ovr: %d",
xevent->xconfigure.window - base_id,
xevent->xconfigure.x,
xevent->xconfigure.y,
xevent->xconfigure.width,
xevent->xconfigure.height,
xevent->xconfigure.border_width,
xevent->xconfigure.above - base_id,
xevent->xconfigure.override_redirect));
if (!window_private->destroyed &&
(window_private->extension_events != 0) &&
gdk_input_vtable.configure_event)
gdk_input_vtable.configure_event (&xevent->xconfigure, window);
if (window_private->window_type == GDK_WINDOW_CHILD)
return_val = FALSE;
else
{
event->configure.type = GDK_CONFIGURE;
event->configure.window = window;
event->configure.width = xevent->xconfigure.width;
event->configure.height = xevent->xconfigure.height;
if (!xevent->xconfigure.x &&
!xevent->xconfigure.y &&
!window_private->destroyed)
{
gint tx = 0;
gint ty = 0;
Window child_window = 0;
if (!XTranslateCoordinates (window_private->xdisplay,
window_private->xwindow,
gdk_root_window,
0, 0,
&tx, &ty,
&child_window))
g_warning ("GdkWindow %ld doesn't share root windows display?",
window_private->xwindow - base_id);
event->configure.x = tx;
event->configure.y = ty;
}
else
{
event->configure.x = xevent->xconfigure.x;
event->configure.y = xevent->xconfigure.y;
}
window_private->x = event->configure.x;
window_private->y = event->configure.y;
window_private->width = xevent->xconfigure.width;
window_private->height = xevent->xconfigure.height;
if (window_private->resize_count > 1)
window_private->resize_count -= 1;
}
break;
case PropertyNotify:
/* Print debugging info.
*/
GDK_NOTE (EVENTS,
g_message ("property notify:\twindow: %ld",
xevent->xproperty.window - base_id));
event->property.type = GDK_PROPERTY_NOTIFY;
event->property.window = window;
event->property.atom = xevent->xproperty.atom;
event->property.time = xevent->xproperty.time;
event->property.state = xevent->xproperty.state;
break;
case SelectionClear:
GDK_NOTE (EVENTS,
g_message ("selection clear:\twindow: %ld",
xevent->xproperty.window - base_id));
event->selection.type = GDK_SELECTION_CLEAR;
event->selection.window = window;
event->selection.selection = xevent->xselectionclear.selection;
event->selection.time = xevent->xselectionclear.time;
break;
case SelectionRequest:
GDK_NOTE (EVENTS,
g_message ("selection request:\twindow: %ld",
xevent->xproperty.window - base_id));
event->selection.type = GDK_SELECTION_REQUEST;
event->selection.window = window;
event->selection.selection = xevent->xselectionrequest.selection;
event->selection.target = xevent->xselectionrequest.target;
event->selection.property = xevent->xselectionrequest.property;
event->selection.requestor = xevent->xselectionrequest.requestor;
event->selection.time = xevent->xselectionrequest.time;
break;
case SelectionNotify:
GDK_NOTE (EVENTS,
g_message ("selection notify:\twindow: %ld",
xevent->xproperty.window - base_id));
event->selection.type = GDK_SELECTION_NOTIFY;
event->selection.window = window;
event->selection.selection = xevent->xselection.selection;
event->selection.target = xevent->xselection.target;
event->selection.property = xevent->xselection.property;
event->selection.time = xevent->xselection.time;
break;
case ColormapNotify:
/* Print debugging info.
*/
GDK_NOTE (EVENTS,
g_message ("colormap notify:\twindow: %ld",
xevent->xcolormap.window - base_id));
/* Not currently handled */
return_val = FALSE;
break;
case ClientMessage:
{
GList *tmp_list;
GdkFilterReturn result = GDK_FILTER_CONTINUE;
/* Print debugging info.
*/
GDK_NOTE (EVENTS,
g_message ("client message:\twindow: %ld",
xevent->xclient.window - base_id));
tmp_list = client_filters;
while (tmp_list)
{
GdkClientFilter *filter = tmp_list->data;
if (filter->type == xevent->xclient.message_type)
{
result = (*filter->function) (xevent, event, filter->data);
break;
}
tmp_list = tmp_list->next;
}
switch (result)
{
case GDK_FILTER_REMOVE:
return_val = FALSE;
break;
case GDK_FILTER_TRANSLATE:
return_val = TRUE;
break;
case GDK_FILTER_CONTINUE:
/* Send unknown ClientMessage's on to Gtk for it to use */
event->client.type = GDK_CLIENT_EVENT;
event->client.window = window;
event->client.message_type = xevent->xclient.message_type;
event->client.data_format = xevent->xclient.format;
memcpy(&event->client.data, &xevent->xclient.data,
sizeof(event->client.data));
}
}
break;
case MappingNotify:
/* Print debugging info.
*/
GDK_NOTE (EVENTS,
g_message ("mapping notify"));
/* Let XLib know that there is a new keyboard mapping.
*/
XRefreshKeyboardMapping (&xevent->xmapping);
return_val = FALSE;
break;
default:
/* something else - (e.g., a Xinput event) */
if (window_private &&
!window_private->destroyed &&
(window_private->extension_events != 0) &&
gdk_input_vtable.other_event)
return_val = gdk_input_vtable.other_event(event, xevent, window);
else
return_val = FALSE;
break;
}
if (return_val)
{
if (event->any.window)
gdk_window_ref (event->any.window);
if (((event->any.type == GDK_ENTER_NOTIFY) ||
(event->any.type == GDK_LEAVE_NOTIFY)) &&
(event->crossing.subwindow != NULL))
gdk_window_ref (event->crossing.subwindow);
}
else
{
/* Mark this event as having no resources to be freed */
event->any.window = NULL;
event->any.type = GDK_NOTHING;
}
if (window)
gdk_window_unref (window);
return return_val;
}
GdkFilterReturn
gdk_wm_protocols_filter (GdkXEvent *xev,
GdkEvent *event,
gpointer data)
{
XEvent *xevent = (XEvent *)xev;
if ((Atom) xevent->xclient.data.l[0] == gdk_wm_delete_window)
{
/* The delete window request specifies a window
* to delete. We don't actually destroy the
* window because "it is only a request". (The
* window might contain vital data that the
* program does not want destroyed). Instead
* the event is passed along to the program,
* which should then destroy the window.
*/
GDK_NOTE (EVENTS,
g_message ("delete window:\t\twindow: %ld",
xevent->xclient.window - base_id));
event->any.type = GDK_DELETE;
return GDK_FILTER_TRANSLATE;
}
else if ((Atom) xevent->xclient.data.l[0] == gdk_wm_take_focus)
{
}
return GDK_FILTER_REMOVE;
}
#if 0
static Bool
gdk_event_get_type (Display *display,
XEvent *xevent,
XPointer arg)
{
GdkEvent event;
GdkPredicate *pred;
if (gdk_event_translate (&event, xevent))
{
pred = (GdkPredicate*) arg;
return (* pred->func) (&event, pred->data);
}
return FALSE;
}
#endif
static void
gdk_synthesize_click (GdkEvent *event,
gint nclicks)
{
GdkEvent temp_event;
g_return_if_fail (event != NULL);
temp_event = *event;
temp_event.type = (nclicks == 2) ? GDK_2BUTTON_PRESS : GDK_3BUTTON_PRESS;
gdk_event_put (&temp_event);
}
/*
*--------------------------------------------------------------
* gdk_exit_func
*
* This is the "atexit" function that makes sure the
* library gets a chance to cleanup.
*
* Arguments:
*
* Results:
*
* Side effects:
* The library is un-initialized and the program exits.
*
*--------------------------------------------------------------
*/
static void
gdk_exit_func (void)
{
static gboolean in_gdk_exit_func = FALSE;
/* This is to avoid an infinite loop if a program segfaults in
an atexit() handler (and yes, it does happen, especially if a program
has trounced over memory too badly for even g_message to work) */
if (in_gdk_exit_func == TRUE)
return;
in_gdk_exit_func = TRUE;
if (gdk_initialized)
{
#ifdef USE_XIM
/* cleanup IC */
gdk_ic_cleanup ();
/* close IM */
gdk_im_close ();
#endif
gdk_image_exit ();
gdk_input_exit ();
gdk_key_repeat_restore ();
XCloseDisplay (gdk_display);
gdk_initialized = 0;
}
}
/*
*--------------------------------------------------------------
* gdk_x_error
*
* The X error handling routine.
*
* Arguments:
* "display" is the X display the error orignated from.
* "error" is the XErrorEvent that we are handling.
*
* Results:
* Either we were expecting some sort of error to occur,
* in which case we set the "gdk_error_code" flag, or this
* error was unexpected, in which case we will print an
* error message and exit. (Since trying to continue will
* most likely simply lead to more errors).
*
* Side effects:
*
*--------------------------------------------------------------
*/
static int
gdk_x_error (Display *display,
XErrorEvent *error)
{
char buf[64];
if (gdk_error_warnings)
{
XGetErrorText (display, error->error_code, buf, 63);
g_error ("%s\n serial %ld error_code %d request_code %d minor_code %d\n",
buf,
error->serial,
error->error_code,
error->request_code,
error->minor_code);
}
gdk_error_code = -1;
return 0;
}
/*
*--------------------------------------------------------------
* gdk_x_io_error
*
* The X I/O error handling routine.
*
* Arguments:
* "display" is the X display the error orignated from.
*
* Results:
* An X I/O error basically means we lost our connection
* to the X server. There is not much we can do to
* continue, so simply print an error message and exit.
*
* Side effects:
*
*--------------------------------------------------------------
*/
static int
gdk_x_io_error (Display *display)
{
g_error ("an x io error occurred");
return 0;
}
/*
*--------------------------------------------------------------
* gdk_signal
*
* The signal handler.
*
* Arguments:
* "sig_num" is the number of the signal we received.
*
* Results:
* The signals we catch are all fatal. So we simply build
* up a nice little error message and print it and exit.
* If in the process of doing so another signal is received
* we notice that we are already exiting and simply kill
* our process.
*
* Side effects:
*
*--------------------------------------------------------------
*/
static RETSIGTYPE
gdk_signal (int sig_num)
{
static int caught_fatal_sig = 0;
char *sig;
if (caught_fatal_sig)
kill (getpid (), sig_num);
caught_fatal_sig = 1;
switch (sig_num)
{
case SIGHUP:
sig = "sighup";
break;
case SIGINT:
sig = "sigint";
break;
case SIGQUIT:
sig = "sigquit";
break;
case SIGBUS:
sig = "sigbus";
break;
case SIGSEGV:
sig = "sigsegv";
break;
case SIGPIPE:
sig = "sigpipe";
break;
case SIGTERM:
sig = "sigterm";
break;
default:
sig = "unknown signal";
break;
}
g_message ("\n** ERROR **: %s caught", sig);
#ifdef G_ENABLE_DEBUG
abort ();
#else /* !G_ENABLE_DEBUG */
gdk_exit (1);
#endif /* !G_ENABLE_DEBUG */
}
/* Sends a ClientMessage to all toplevel client windows */
gboolean
gdk_event_send_client_message (GdkEvent *event, guint32 xid)
{
XEvent sev;
g_return_val_if_fail(event != NULL, FALSE);
/* Set up our event to send, with the exception of its target window */
sev.xclient.type = ClientMessage;
sev.xclient.display = gdk_display;
sev.xclient.format = event->client.data_format;
sev.xclient.window = xid;
memcpy(&sev.xclient.data, &event->client.data, sizeof(sev.xclient.data));
sev.xclient.message_type = event->client.message_type;
return gdk_send_xevent (xid, False, NoEventMask, &sev);
}
/* Sends a ClientMessage to all toplevel client windows */
gboolean
gdk_event_send_client_message_to_all_recurse (XEvent *xev,
guint32 xid,
guint level)
{
static GdkAtom wm_state_atom = GDK_NONE;
Atom type = None;
int format;
unsigned long nitems, after;
unsigned char *data;
Window *ret_children, ret_root, ret_parent;
unsigned int ret_nchildren;
int i;
gboolean send = FALSE;
gboolean found = FALSE;
if (!wm_state_atom)
wm_state_atom = gdk_atom_intern ("WM_STATE", FALSE);
gdk_error_code = 0;
XGetWindowProperty (gdk_display, xid, wm_state_atom, 0, 0, False, AnyPropertyType,
&type, &format, &nitems, &after, &data);
if (gdk_error_code)
{
gdk_error_code = 0;
return FALSE;
}
if (type)
{
send = TRUE;
XFree (data);
}
else
{
/* OK, we're all set, now let's find some windows to send this to */
if (XQueryTree(gdk_display, xid, &ret_root, &ret_parent,
&ret_children, &ret_nchildren) != True)
return FALSE;
if (gdk_error_code)
return FALSE;
for(i = 0; i < ret_nchildren; i++)
if (gdk_event_send_client_message_to_all_recurse(xev, ret_children[i], level + 1))
found = TRUE;
XFree(ret_children);
}
if (send || (!found && (level == 1)))
{
xev->xclient.window = xid;
gdk_send_xevent (xid, False, NoEventMask, xev);
}
return (send || found);
}
void
gdk_event_send_clientmessage_toall (GdkEvent *event)
{
XEvent sev;
gint old_warnings = gdk_error_warnings;
g_return_if_fail(event != NULL);
/* Set up our event to send, with the exception of its target window */
sev.xclient.type = ClientMessage;
sev.xclient.display = gdk_display;
sev.xclient.format = event->client.data_format;
memcpy(&sev.xclient.data, &event->client.data, sizeof(sev.xclient.data));
sev.xclient.message_type = event->client.message_type;
gdk_event_send_client_message_to_all_recurse(&sev, gdk_root_window, 0);
gdk_error_warnings = old_warnings;
}
gchar *
gdk_get_display(void)
{
return (gchar *)XDisplayName (gdk_display_name);
}
gint
gdk_send_xevent (Window window, gboolean propagate, glong event_mask,
XEvent *event_send)
{
Status result;
gint old_warnings = gdk_error_warnings;
gdk_error_code = 0;
gdk_error_warnings = 0;
result = XSendEvent (gdk_display, window, propagate, event_mask, event_send);
XSync (gdk_display, False);
gdk_error_warnings = old_warnings;
return result && (gdk_error_code != -1);
}
#ifndef HAVE_XCONVERTCASE
/* compatibility function from X11R6.3, since XConvertCase is not
* supplied by X11R5.
*/
static void
gdkx_XConvertCase (KeySym symbol,
KeySym *lower,
KeySym *upper)
{
register KeySym sym = symbol;
g_return_if_fail (lower != NULL);
g_return_if_fail (upper != NULL);
*lower = sym;
*upper = sym;
switch (sym >> 8)
{
#if defined (GDK_A) && defined (GDK_Ooblique)
case 0: /* Latin 1 */
if ((sym >= GDK_A) && (sym <= GDK_Z))
*lower += (GDK_a - GDK_A);
else if ((sym >= GDK_a) && (sym <= GDK_z))
*upper -= (GDK_a - GDK_A);
else if ((sym >= GDK_Agrave) && (sym <= GDK_Odiaeresis))
*lower += (GDK_agrave - GDK_Agrave);
else if ((sym >= GDK_agrave) && (sym <= GDK_odiaeresis))
*upper -= (GDK_agrave - GDK_Agrave);
else if ((sym >= GDK_Ooblique) && (sym <= GDK_Thorn))
*lower += (GDK_oslash - GDK_Ooblique);
else if ((sym >= GDK_oslash) && (sym <= GDK_thorn))
*upper -= (GDK_oslash - GDK_Ooblique);
break;
#endif /* LATIN1 */
#if defined (GDK_Aogonek) && defined (GDK_tcedilla)
case 1: /* Latin 2 */
/* Assume the KeySym is a legal value (ignore discontinuities) */
if (sym == GDK_Aogonek)
*lower = GDK_aogonek;
else if (sym >= GDK_Lstroke && sym <= GDK_Sacute)
*lower += (GDK_lstroke - GDK_Lstroke);
else if (sym >= GDK_Scaron && sym <= GDK_Zacute)
*lower += (GDK_scaron - GDK_Scaron);
else if (sym >= GDK_Zcaron && sym <= GDK_Zabovedot)
*lower += (GDK_zcaron - GDK_Zcaron);
else if (sym == GDK_aogonek)
*upper = GDK_Aogonek;
else if (sym >= GDK_lstroke && sym <= GDK_sacute)
*upper -= (GDK_lstroke - GDK_Lstroke);
else if (sym >= GDK_scaron && sym <= GDK_zacute)
*upper -= (GDK_scaron - GDK_Scaron);
else if (sym >= GDK_zcaron && sym <= GDK_zabovedot)
*upper -= (GDK_zcaron - GDK_Zcaron);
else if (sym >= GDK_Racute && sym <= GDK_Tcedilla)
*lower += (GDK_racute - GDK_Racute);
else if (sym >= GDK_racute && sym <= GDK_tcedilla)
*upper -= (GDK_racute - GDK_Racute);
break;
#endif /* LATIN2 */
#if defined (GDK_Hstroke) && defined (GDK_Cabovedot)
case 2: /* Latin 3 */
/* Assume the KeySym is a legal value (ignore discontinuities) */
if (sym >= GDK_Hstroke && sym <= GDK_Hcircumflex)
*lower += (GDK_hstroke - GDK_Hstroke);
else if (sym >= GDK_Gbreve && sym <= GDK_Jcircumflex)
*lower += (GDK_gbreve - GDK_Gbreve);
else if (sym >= GDK_hstroke && sym <= GDK_hcircumflex)
*upper -= (GDK_hstroke - GDK_Hstroke);
else if (sym >= GDK_gbreve && sym <= GDK_jcircumflex)
*upper -= (GDK_gbreve - GDK_Gbreve);
else if (sym >= GDK_Cabovedot && sym <= GDK_Scircumflex)
*lower += (GDK_cabovedot - GDK_Cabovedot);
else if (sym >= GDK_cabovedot && sym <= GDK_scircumflex)
*upper -= (GDK_cabovedot - GDK_Cabovedot);
break;
#endif /* LATIN3 */
#if defined (GDK_Rcedilla) && defined (GDK_Amacron)
case 3: /* Latin 4 */
/* Assume the KeySym is a legal value (ignore discontinuities) */
if (sym >= GDK_Rcedilla && sym <= GDK_Tslash)
*lower += (GDK_rcedilla - GDK_Rcedilla);
else if (sym >= GDK_rcedilla && sym <= GDK_tslash)
*upper -= (GDK_rcedilla - GDK_Rcedilla);
else if (sym == GDK_ENG)
*lower = GDK_eng;
else if (sym == GDK_eng)
*upper = GDK_ENG;
else if (sym >= GDK_Amacron && sym <= GDK_Umacron)
*lower += (GDK_amacron - GDK_Amacron);
else if (sym >= GDK_amacron && sym <= GDK_umacron)
*upper -= (GDK_amacron - GDK_Amacron);
break;
#endif /* LATIN4 */
#if defined (GDK_Serbian_DJE) && defined (GDK_Cyrillic_yu)
case 6: /* Cyrillic */
/* Assume the KeySym is a legal value (ignore discontinuities) */
if (sym >= GDK_Serbian_DJE && sym <= GDK_Serbian_DZE)
*lower -= (GDK_Serbian_DJE - GDK_Serbian_dje);
else if (sym >= GDK_Serbian_dje && sym <= GDK_Serbian_dze)
*upper += (GDK_Serbian_DJE - GDK_Serbian_dje);
else if (sym >= GDK_Cyrillic_YU && sym <= GDK_Cyrillic_HARDSIGN)
*lower -= (GDK_Cyrillic_YU - GDK_Cyrillic_yu);
else if (sym >= GDK_Cyrillic_yu && sym <= GDK_Cyrillic_hardsign)
*upper += (GDK_Cyrillic_YU - GDK_Cyrillic_yu);
break;
#endif /* CYRILLIC */
#if defined (GDK_Greek_ALPHAaccent) && defined (GDK_Greek_finalsmallsigma)
case 7: /* Greek */
/* Assume the KeySym is a legal value (ignore discontinuities) */
if (sym >= GDK_Greek_ALPHAaccent && sym <= GDK_Greek_OMEGAaccent)
*lower += (GDK_Greek_alphaaccent - GDK_Greek_ALPHAaccent);
else if (sym >= GDK_Greek_alphaaccent && sym <= GDK_Greek_omegaaccent &&
sym != GDK_Greek_iotaaccentdieresis &&
sym != GDK_Greek_upsilonaccentdieresis)
*upper -= (GDK_Greek_alphaaccent - GDK_Greek_ALPHAaccent);
else if (sym >= GDK_Greek_ALPHA && sym <= GDK_Greek_OMEGA)
*lower += (GDK_Greek_alpha - GDK_Greek_ALPHA);
else if (sym >= GDK_Greek_alpha && sym <= GDK_Greek_omega &&
sym != GDK_Greek_finalsmallsigma)
*upper -= (GDK_Greek_alpha - GDK_Greek_ALPHA);
break;
#endif /* GREEK */
}
}
#endif
gchar*
gdk_keyval_name (guint keyval)
{
return XKeysymToString (keyval);
}
guint
gdk_keyval_from_name (const gchar *keyval_name)
{
g_return_val_if_fail (keyval_name != NULL, 0);
return XStringToKeysym (keyval_name);
}
guint
gdk_keyval_to_upper (guint keyval)
{
if (keyval)
{
KeySym lower_val = 0;
KeySym upper_val = 0;
XConvertCase (keyval, &lower_val, &upper_val);
return upper_val;
}
return 0;
}
guint
gdk_keyval_to_lower (guint keyval)
{
if (keyval)
{
KeySym lower_val = 0;
KeySym upper_val = 0;
XConvertCase (keyval, &lower_val, &upper_val);
return lower_val;
}
return 0;
}
gboolean
gdk_keyval_is_upper (guint keyval)
{
if (keyval)
{
KeySym lower_val = 0;
KeySym upper_val = 0;
XConvertCase (keyval, &lower_val, &upper_val);
return upper_val == keyval;
}
return TRUE;
}
gboolean
gdk_keyval_is_lower (guint keyval)
{
if (keyval)
{
KeySym lower_val = 0;
KeySym upper_val = 0;
XConvertCase (keyval, &lower_val, &upper_val);
return lower_val == keyval;
}
return TRUE;
}
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