gtk/gdk/gdkinput.c
1997-11-24 22:37:52 +00:00

325 lines
7.7 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 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdlib.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include "../config.h"
#include "gdk.h"
#include "gdkx.h"
#include "gdkprivate.h"
#include "gdkinput.h"
/* Forward declarations */
static gint gdk_input_enable_window (GdkWindow *window,
GdkDevicePrivate *gdkdev);
static gint gdk_input_disable_window (GdkWindow *window,
GdkDevicePrivate *gdkdev);
static GdkInputWindow *gdk_input_window_find (GdkWindow *window);
static GdkDevicePrivate *gdk_input_find_device (guint32 id);
/* Incorporate the specific routines depending on compilation options */
static GdkAxisUse gdk_input_core_axes[] = { GDK_AXIS_X, GDK_AXIS_Y };
static GdkDeviceInfo gdk_input_core_info =
{
GDK_CORE_POINTER,
"Core Pointer",
GDK_SOURCE_MOUSE,
GDK_MODE_SCREEN,
TRUE,
2,
gdk_input_core_axes
};
/* Global variables */
GdkInputVTable gdk_input_vtable;
/* information about network port and host for gxid daemon */
gchar *gdk_input_gxid_host;
gint gdk_input_gxid_port;
gint gdk_input_ignore_core;
/* Local variables */
static GList *gdk_input_devices;
static GList *gdk_input_windows;
#include "gdkinputnone.h"
#include "gdkinputcommon.h"
#include "gdkinputxfree.h"
#include "gdkinputgxi.h"
GList *
gdk_input_list_devices ()
{
return gdk_input_devices;
}
void
gdk_input_set_source (guint32 deviceid, GdkInputSource source)
{
GdkDevicePrivate *gdkdev = gdk_input_find_device(deviceid);
g_return_if_fail (gdkdev != NULL);
gdkdev->info.source = source;
}
gint
gdk_input_set_mode (guint32 deviceid, GdkInputMode mode)
{
if (deviceid == GDK_CORE_POINTER)
return FALSE;
if (gdk_input_vtable.set_mode)
return gdk_input_vtable.set_mode(deviceid,mode);
else
return FALSE;
}
void
gdk_input_set_axes (guint32 deviceid, GdkAxisUse *axes)
{
if (deviceid != GDK_CORE_POINTER && gdk_input_vtable.set_axes)
gdk_input_vtable.set_axes (deviceid, axes);
}
GdkTimeCoord *
gdk_input_motion_events (GdkWindow *window,
guint32 deviceid,
guint32 start,
guint32 stop,
gint *nevents_return)
{
XTimeCoord *xcoords;
GdkTimeCoord *coords;
int i;
if (deviceid == GDK_CORE_POINTER)
{
xcoords = XGetMotionEvents (gdk_display,
((GdkWindowPrivate *)window)->xwindow,
start, stop, nevents_return);
if (xcoords)
{
coords = g_new (GdkTimeCoord, *nevents_return);
for (i=0; i<*nevents_return; i++)
{
coords[i].time = xcoords[i].time;
coords[i].x = xcoords[i].x;
coords[i].y = xcoords[i].y;
coords[i].pressure = 0.5;
coords[i].xtilt = 0.0;
coords[i].ytilt = 0.0;
}
XFree(xcoords);
return coords;
}
else
return NULL;
}
else
{
if (gdk_input_vtable.motion_events)
{
return gdk_input_vtable.motion_events(window,
deviceid, start, stop,
nevents_return);
}
else
{
*nevents_return = 0;
return NULL;
}
}
}
static gint
gdk_input_enable_window (GdkWindow *window, GdkDevicePrivate *gdkdev)
{
if (gdk_input_vtable.enable_window)
return gdk_input_vtable.enable_window (window, gdkdev);
else
return TRUE;
}
static gint
gdk_input_disable_window (GdkWindow *window, GdkDevicePrivate *gdkdev)
{
if (gdk_input_vtable.disable_window)
return gdk_input_vtable.disable_window(window,gdkdev);
else
return TRUE;
}
static GdkInputWindow *
gdk_input_window_find(GdkWindow *window)
{
GList *tmp_list;
for (tmp_list=gdk_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)
{
GList *tmp_list;
GdkInputWindow *iw;
g_return_if_fail (window != NULL);
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;
gdk_input_windows = g_list_append(gdk_input_windows,iw);
((GdkWindowPrivate *)window)->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)
{
gdk_input_windows = g_list_remove(gdk_input_windows,iw);
g_free(iw);
}
((GdkWindowPrivate *)window)->extension_events = 0;
}
for (tmp_list = gdk_input_devices; tmp_list; tmp_list = tmp_list->next)
{
GdkDevicePrivate *gdkdev = (GdkDevicePrivate *)(tmp_list->data);
if (gdkdev->info.deviceid != GDK_CORE_POINTER)
{
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;
input_window = gdk_input_window_find (window);
g_return_if_fail (input_window != NULL);
gdk_input_windows = g_list_remove(gdk_input_windows,input_window);
g_free(input_window);
}
void
gdk_input_exit (void)
{
GList *tmp_list;
GdkDevicePrivate *gdkdev;
for (tmp_list = gdk_input_devices; tmp_list; tmp_list = tmp_list->next)
{
gdkdev = (GdkDevicePrivate *)(tmp_list->data);
if (gdkdev->info.deviceid != GDK_CORE_POINTER)
{
gdk_input_set_mode(gdkdev->info.deviceid,GDK_MODE_DISABLED);
g_free(gdkdev->info.name);
#ifndef XINPUT_NONE
g_free(gdkdev->axes);
#endif
g_free(gdkdev->info.axes);
g_free(gdkdev);
}
}
g_list_free(gdk_input_devices);
for (tmp_list = gdk_input_windows; tmp_list; tmp_list = tmp_list->next)
{
g_free(tmp_list->data);
}
g_list_free(gdk_input_windows);
}
static GdkDevicePrivate *
gdk_input_find_device(guint32 id)
{
GList *tmp_list = gdk_input_devices;
GdkDevicePrivate *gdkdev;
while (tmp_list)
{
gdkdev = (GdkDevicePrivate *)(tmp_list->data);
if (gdkdev->info.deviceid == id)
return gdkdev;
tmp_list = tmp_list->next;
}
return NULL;
}
void
gdk_input_window_get_pointer (GdkWindow *window,
guint32 deviceid,
gdouble *x,
gdouble *y,
gdouble *pressure,
gdouble *xtilt,
gdouble *ytilt,
GdkModifierType *mask)
{
if (gdk_input_vtable.get_pointer)
gdk_input_vtable.get_pointer (window, deviceid, x, y, pressure,
xtilt, ytilt, mask);
}