gtk/gdk/x11/gdkinput.c
Matthias Clasen 0742ff3ae3 Add hidden aliases for exported symbols which are used internally in order
Mon Aug  9 15:41:17 2004  Matthias Clasen  <maclas@gmx.de>

	Add hidden aliases for exported symbols which are
	used internally in order to get rid of many PLT
	entries.  (#145519, Arjan van de Ven)

	* gdk/Makefile.am: Add rules to generate gdk.def and
	gdkalias.h from gdk.symbols, and make make check check
	the abi with abicheck.sh.

	* gdk/gdk.symbols: New file. Definition of the GDK ABI.
	The file can be processed by cpp to filter out certain
	subsets of symbols.

	* gdk/abicheck.sh: New file. Script to check the actually
	symbols exported from libgdk-x11.2.0.so against the symbols
	found in gdk.symbols.

	* gdk/makegdkalias.pl: New file. Perl script to generate the
	header containing the alias definitions for internally used
	exported symbols from a list of symbols.

	* gdk/*.c, gdk/x11/*.c: Include gdkalias.h
2004-08-09 20:14:43 +00:00

448 lines
11 KiB
C

/* 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 Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include <config.h>
#include <stdlib.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include "gdkalias.h"
#include "gdkx.h"
#include "gdkinput.h"
#include "gdkprivate.h"
#include "gdkinputprivate.h"
#include "gdkscreen-x11.h"
#include "gdkdisplay-x11.h"
static GdkDeviceAxis gdk_input_core_axes[] = {
{ GDK_AXIS_X, 0, 0 },
{ GDK_AXIS_Y, 0, 0 }
};
void
_gdk_init_input_core (GdkDisplay *display)
{
GdkDevicePrivate *private;
display->core_pointer = g_object_new (GDK_TYPE_DEVICE, NULL);
private = (GdkDevicePrivate *)display->core_pointer;
display->core_pointer->name = "Core Pointer";
display->core_pointer->source = GDK_SOURCE_MOUSE;
display->core_pointer->mode = GDK_MODE_SCREEN;
display->core_pointer->has_cursor = TRUE;
display->core_pointer->num_axes = 2;
display->core_pointer->axes = gdk_input_core_axes;
display->core_pointer->num_keys = 0;
display->core_pointer->keys = NULL;
private->display = display;
}
GType
gdk_device_get_type (void)
{
static GType object_type = 0;
if (!object_type)
{
static const GTypeInfo object_info =
{
sizeof (GdkDeviceClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) NULL,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GdkDevicePrivate),
0, /* n_preallocs */
(GInstanceInitFunc) NULL,
};
object_type = g_type_register_static (G_TYPE_OBJECT,
"GdkDevice",
&object_info, 0);
}
return object_type;
}
/**
* gdk_devices_list:
*
* Returns the list of available input devices for the default display.
* The list is statically allocated and should not be freed.
*
* Return value: a list of #GdkDevice
**/
GList *
gdk_devices_list (void)
{
return gdk_display_list_devices (gdk_display_get_default ());
}
/**
* gdk_display_list_devices:
* @display: a #GdkDisplay
*
* Returns the list of available input devices attached to @display.
* The list is statically allocated and should not be freed.
*
* Return value: a list of #GdkDevice
*
* Since: 2.2
**/
GList *
gdk_display_list_devices (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return GDK_DISPLAY_X11 (display)->input_devices;
}
void
gdk_device_set_source (GdkDevice *device,
GdkInputSource source)
{
g_return_if_fail (device != NULL);
device->source = source;
}
void
gdk_device_set_key (GdkDevice *device,
guint index,
guint keyval,
GdkModifierType modifiers)
{
g_return_if_fail (device != NULL);
g_return_if_fail (index < device->num_keys);
device->keys[index].keyval = keyval;
device->keys[index].modifiers = modifiers;
}
void
gdk_device_set_axis_use (GdkDevice *device,
guint index,
GdkAxisUse use)
{
g_return_if_fail (device != NULL);
g_return_if_fail (index < device->num_axes);
device->axes[index].use = use;
switch (use)
{
case GDK_AXIS_X:
case GDK_AXIS_Y:
device->axes[index].min = 0.;
device->axes[index].max = 0.;
break;
case GDK_AXIS_XTILT:
case GDK_AXIS_YTILT:
device->axes[index].min = -1.;
device->axes[index].max = 1;
break;
default:
device->axes[index].min = 0.;
device->axes[index].max = 1;
break;
}
}
/**
* gdk_device_get_history:
* @device: a #GdkDevice
* @window: the window with respect to which which the event coordinates will be reported
* @start: starting timestamp for range of events to return
* @stop: ending timestamp for the range of events to return
* @events: location to store a newly-allocated array of #GdkTimeCoord, or %NULL
* @n_events: location to store the length of @events, or %NULL
*
* Obtains the motion history for a device; given a starting and
* ending timestamp, return all events in the motion history for
* the device in the given range of time. Some windowing systems
* do not support motion history, in which case, %FALSE will
* be returned. (This is not distinguishable from the case where
* motion history is supported and no events were found.)
*
* Return value: %TRUE if the windowing system supports motion history and
* at least one event was found.
**/
gboolean
gdk_device_get_history (GdkDevice *device,
GdkWindow *window,
guint32 start,
guint32 stop,
GdkTimeCoord ***events,
gint *n_events)
{
GdkTimeCoord **coords = NULL;
gboolean result = FALSE;
int tmp_n_events = 0;
int i;
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
if (GDK_WINDOW_DESTROYED (window))
/* Nothing */ ;
else if (GDK_IS_CORE (device))
{
XTimeCoord *xcoords;
xcoords = XGetMotionEvents (GDK_DRAWABLE_XDISPLAY (window),
GDK_DRAWABLE_XID (window),
start, stop, &tmp_n_events);
if (xcoords)
{
coords = _gdk_device_allocate_history (device, tmp_n_events);
for (i=0; i<tmp_n_events; i++)
{
coords[i]->time = xcoords[i].time;
coords[i]->axes[0] = xcoords[i].x;
coords[i]->axes[1] = xcoords[i].y;
}
XFree (xcoords);
result = TRUE;
}
else
result = FALSE;
}
else
result = _gdk_device_get_history (device, window, start, stop, &coords, &tmp_n_events);
if (n_events)
*n_events = tmp_n_events;
if (events)
*events = coords;
else if (coords)
gdk_device_free_history (coords, tmp_n_events);
return result;
}
GdkTimeCoord **
_gdk_device_allocate_history (GdkDevice *device,
gint n_events)
{
GdkTimeCoord **result = g_new (GdkTimeCoord *, n_events);
gint i;
for (i=0; i<n_events; i++)
result[i] = g_malloc (sizeof (GdkTimeCoord) -
sizeof (double) * (GDK_MAX_TIMECOORD_AXES - device->num_axes));
return result;
}
void
gdk_device_free_history (GdkTimeCoord **events,
gint n_events)
{
gint i;
for (i=0; i<n_events; i++)
g_free (events[i]);
g_free (events);
}
GdkInputWindow *
_gdk_input_window_find(GdkWindow *window)
{
GList *tmp_list;
GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (GDK_WINDOW_DISPLAY (window));
for (tmp_list=display_x11->input_windows; tmp_list; tmp_list=tmp_list->next)
if (((GdkInputWindow *)(tmp_list->data))->window == window)
return (GdkInputWindow *)(tmp_list->data);
return NULL; /* Not found */
}
/* FIXME: this routine currently needs to be called between creation
and the corresponding configure event (because it doesn't get the
root_relative_geometry). This should work with
gtk_window_set_extension_events, but will likely fail in other
cases */
void
gdk_input_set_extension_events (GdkWindow *window, gint mask,
GdkExtensionMode mode)
{
GdkWindowObject *window_private;
GList *tmp_list;
GdkInputWindow *iw;
GdkDisplayX11 *display_x11;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
window_private = (GdkWindowObject*) window;
display_x11 = GDK_DISPLAY_X11 (GDK_WINDOW_DISPLAY (window));
if (GDK_WINDOW_DESTROYED (window))
return;
if (mode == GDK_EXTENSION_EVENTS_NONE)
mask = 0;
if (mask != 0)
{
iw = g_new(GdkInputWindow,1);
iw->window = window;
iw->mode = mode;
iw->obscuring = NULL;
iw->num_obscuring = 0;
iw->grabbed = FALSE;
display_x11->input_windows = g_list_append(display_x11->input_windows,iw);
window_private->extension_events = mask;
/* Add enter window events to the event mask */
/* FIXME, this is not needed for XINPUT_NONE */
gdk_window_set_events (window,
gdk_window_get_events (window) |
GDK_ENTER_NOTIFY_MASK);
}
else
{
iw = _gdk_input_window_find (window);
if (iw)
{
display_x11->input_windows = g_list_remove(display_x11->input_windows,iw);
g_free(iw);
}
window_private->extension_events = 0;
}
for (tmp_list = display_x11->input_devices; tmp_list; tmp_list = tmp_list->next)
{
GdkDevicePrivate *gdkdev = tmp_list->data;
if (!GDK_IS_CORE (gdkdev))
{
if (mask != 0 && gdkdev->info.mode != GDK_MODE_DISABLED
&& (gdkdev->info.has_cursor || mode == GDK_EXTENSION_EVENTS_ALL))
_gdk_input_enable_window (window,gdkdev);
else
_gdk_input_disable_window (window,gdkdev);
}
}
}
void
_gdk_input_window_destroy (GdkWindow *window)
{
GdkInputWindow *input_window;
GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (GDK_WINDOW_DISPLAY (window));
input_window = _gdk_input_window_find (window);
g_return_if_fail (input_window != NULL);
display_x11->input_windows = g_list_remove (display_x11->input_windows, input_window);
g_free(input_window);
}
void
_gdk_input_exit (void)
{
GList *tmp_list;
GSList *display_list;
GdkDevicePrivate *gdkdev;
for (display_list = _gdk_displays ; display_list ; display_list = display_list->next)
{
GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display_list->data);
for (tmp_list = display_x11->input_devices; tmp_list; tmp_list = tmp_list->next)
{
gdkdev = (GdkDevicePrivate *)(tmp_list->data);
if (!GDK_IS_CORE (gdkdev))
{
gdk_device_set_mode (&gdkdev->info, GDK_MODE_DISABLED);
g_free(gdkdev->info.name);
#ifndef XINPUT_NONE
g_free(gdkdev->axes);
#endif
g_free(gdkdev->info.axes);
g_free(gdkdev->info.keys);
g_free(gdkdev);
}
}
g_list_free(display_x11->input_devices);
for (tmp_list = display_x11->input_windows; tmp_list; tmp_list = tmp_list->next)
g_free(tmp_list->data);
g_list_free(display_x11->input_windows);
}
}
/**
* gdk_device_get_axis:
* @device: a #GdkDevice
* @axes: pointer to an array of axes
* @use: the use to look for
* @value: location to store the found value.
*
* Interprets an array of double as axis values for a given device,
* and locates the value in the array for a given axis use.
*
* Return value: %TRUE if the given axis use was found, otherwise %FALSE
**/
gboolean
gdk_device_get_axis (GdkDevice *device,
gdouble *axes,
GdkAxisUse use,
gdouble *value)
{
gint i;
g_return_val_if_fail (device != NULL, FALSE);
if (axes == NULL)
return FALSE;
for (i=0; i<device->num_axes; i++)
if (device->axes[i].use == use)
{
if (value)
*value = axes[i];
return TRUE;
}
return FALSE;
}