gtk/gdk/win32/gdkdevice-wintab.c
Hans Breuer 1d838f586c win32: gdk3 resurrection
There are sure regressions but basic stuff seems to be working
again after all the API breakage done with comments like
"Win32 and Quartz need to be ported still."
2011-01-02 13:33:04 +01:00

387 lines
13 KiB
C

/* GDK - The GIMP Drawing Kit
* Copyright (C) 2009 Carlos Garnacho <carlosg@gnome.org>
*
* 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.
*/
#include "config.h"
#include <gdk/gdkwindow.h>
#include <windowsx.h>
#include <objbase.h>
#include "gdkwin32.h"
#include "gdkdevice-wintab.h"
static GQuark quark_window_input_info = 0;
static GSList *input_windows = NULL;
typedef struct
{
gdouble root_x;
gdouble root_y;
GHashTable *device_events;
} GdkWindowInputInfo;
static gboolean gdk_device_wintab_get_history (GdkDevice *device,
GdkWindow *window,
guint32 start,
guint32 stop,
GdkTimeCoord ***events,
gint *n_events);
static void gdk_device_wintab_get_state (GdkDevice *device,
GdkWindow *window,
gdouble *axes,
GdkModifierType *mask);
static void gdk_device_wintab_set_window_cursor (GdkDevice *device,
GdkWindow *window,
GdkCursor *cursor);
static void gdk_device_wintab_warp (GdkDevice *device,
GdkScreen *screen,
gint x,
gint y);
static gboolean gdk_device_wintab_query_state (GdkDevice *device,
GdkWindow *window,
GdkWindow **root_window,
GdkWindow **child_window,
gint *root_x,
gint *root_y,
gint *win_x,
gint *win_y,
GdkModifierType *mask);
static GdkGrabStatus gdk_device_wintab_grab (GdkDevice *device,
GdkWindow *window,
gboolean owner_events,
GdkEventMask event_mask,
GdkWindow *confine_to,
GdkCursor *cursor,
guint32 time_);
static void gdk_device_wintab_ungrab (GdkDevice *device,
guint32 time_);
static GdkWindow * gdk_device_wintab_window_at_position (GdkDevice *device,
gint *win_x,
gint *win_y,
GdkModifierType *mask,
gboolean get_toplevel);
static void gdk_device_wintab_select_window_events (GdkDevice *device,
GdkWindow *window,
GdkEventMask event_mask);
G_DEFINE_TYPE (GdkDeviceWintab, gdk_device_wintab, GDK_TYPE_DEVICE)
static void
gdk_device_wintab_class_init (GdkDeviceWintabClass *klass)
{
GdkDeviceClass *device_class = GDK_DEVICE_CLASS (klass);
device_class->get_history = gdk_device_wintab_get_history;
device_class->get_state = gdk_device_wintab_get_state;
device_class->set_window_cursor = gdk_device_wintab_set_window_cursor;
device_class->warp = gdk_device_wintab_warp;
device_class->query_state = gdk_device_wintab_query_state;
device_class->grab = gdk_device_wintab_grab;
device_class->ungrab = gdk_device_wintab_ungrab;
device_class->window_at_position = gdk_device_wintab_window_at_position;
device_class->select_window_events = gdk_device_wintab_select_window_events;
quark_window_input_info = g_quark_from_static_string ("gdk-window-input-info");
}
static void
gdk_device_wintab_init (GdkDeviceWintab *device_wintab)
{
GdkDevice *device;
device = GDK_DEVICE (device_wintab);
}
static gboolean
gdk_device_wintab_get_history (GdkDevice *device,
GdkWindow *window,
guint32 start,
guint32 stop,
GdkTimeCoord ***events,
gint *n_events)
{
return FALSE;
}
static void
gdk_device_wintab_get_state (GdkDevice *device,
GdkWindow *window,
gdouble *axes,
GdkModifierType *mask)
{
GdkDeviceWintab *device_wintab;
device_wintab = GDK_DEVICE_WINTAB (device);
/* For now just use the last known button and axis state of the device.
* Since graphical tablets send an insane amount of motion events each
* second, the info should be fairly up to date */
if (mask)
{
gdk_window_get_pointer (window, NULL, NULL, mask);
*mask &= 0xFF; /* Mask away core pointer buttons */
*mask |= ((device_wintab->button_state << 8)
& (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK
| GDK_BUTTON3_MASK | GDK_BUTTON4_MASK
| GDK_BUTTON5_MASK));
}
if (device_wintab->last_axis_data)
_gdk_device_wintab_translate_axes (device_wintab, window, axes, NULL, NULL);
}
static void
gdk_device_wintab_set_window_cursor (GdkDevice *device,
GdkWindow *window,
GdkCursor *cursor)
{
}
static void
gdk_device_wintab_warp (GdkDevice *device,
GdkScreen *screen,
gint x,
gint y)
{
}
static gboolean
gdk_device_wintab_query_state (GdkDevice *device,
GdkWindow *window,
GdkWindow **root_window,
GdkWindow **child_window,
gint *root_x,
gint *root_y,
gint *win_x,
gint *win_y,
GdkModifierType *mask)
{
return FALSE;
}
static GdkGrabStatus
gdk_device_wintab_grab (GdkDevice *device,
GdkWindow *window,
gboolean owner_events,
GdkEventMask event_mask,
GdkWindow *confine_to,
GdkCursor *cursor,
guint32 time_)
{
return GDK_GRAB_SUCCESS;
}
static void
gdk_device_wintab_ungrab (GdkDevice *device,
guint32 time_)
{
}
static GdkWindow *
gdk_device_wintab_window_at_position (GdkDevice *device,
gint *win_x,
gint *win_y,
GdkModifierType *mask,
gboolean get_toplevel)
{
return NULL;
}
static void
input_info_free (GdkWindowInputInfo *info)
{
g_hash_table_destroy (info->device_events);
g_free (info);
}
static void
gdk_device_wintab_select_window_events (GdkDevice *device,
GdkWindow *window,
GdkEventMask event_mask)
{
GdkWindowInputInfo *info;
info = g_object_get_qdata (G_OBJECT (window),
quark_window_input_info);
if (event_mask)
{
if (!info)
{
info = g_new0 (GdkWindowInputInfo, 1);
info->device_events = g_hash_table_new (NULL, NULL);
g_object_set_qdata_full (G_OBJECT (window),
quark_window_input_info,
info,
(GDestroyNotify) input_info_free);
input_windows = g_slist_prepend (input_windows, window);
}
g_hash_table_insert (info->device_events, device,
GUINT_TO_POINTER (event_mask));
}
else if (info)
{
g_hash_table_remove (info->device_events, device);
if (g_hash_table_size (info->device_events) == 0)
{
g_object_set_qdata (G_OBJECT (window),
quark_window_input_info,
NULL);
input_windows = g_slist_remove (input_windows, window);
}
}
}
GdkEventMask
_gdk_device_wintab_get_events (GdkDeviceWintab *device,
GdkWindow *window)
{
GdkWindowInputInfo *info;
info = g_object_get_qdata (G_OBJECT (window),
quark_window_input_info);
if (!info)
return 0;
return GPOINTER_TO_UINT (g_hash_table_lookup (info->device_events, device));
}
gboolean
_gdk_device_wintab_get_window_coords (GdkWindow *window,
gdouble *root_x,
gdouble *root_y)
{
GdkWindowInputInfo *info;
info = g_object_get_qdata (G_OBJECT (window),
quark_window_input_info);
if (!info)
return FALSE;
*root_x = info->root_x;
*root_y = info->root_y;
return TRUE;
}
void
_gdk_device_wintab_update_window_coords (GdkWindow *window)
{
GdkWindowInputInfo *info;
gint root_x, root_y;
info = g_object_get_qdata (G_OBJECT (window),
quark_window_input_info);
g_return_if_fail (info != NULL);
gdk_window_get_origin (window, &root_x, &root_y);
info->root_x = (gdouble) root_x;
info->root_y = (gdouble) root_y;
}
void
_gdk_device_wintab_translate_axes (GdkDeviceWintab *device_wintab,
GdkWindow *window,
gdouble *axes,
gdouble *x,
gdouble *y)
{
GdkDevice *device;
GdkWindow *impl_window;
gdouble root_x, root_y;
gdouble temp_x, temp_y;
gint i;
device = GDK_DEVICE (device_wintab);
impl_window = _gdk_window_get_impl_window (window);
temp_x = temp_y = 0;
if (!_gdk_device_wintab_get_window_coords (impl_window, &root_x, &root_y))
return;
for (i = 0; i < gdk_device_get_n_axes (device); i++)
{
GdkAxisUse use;
use = _gdk_device_get_axis_use (device, i);
switch (use)
{
case GDK_AXIS_X:
case GDK_AXIS_Y:
if (gdk_device_get_mode (device) == GDK_MODE_WINDOW)
_gdk_device_translate_window_coord (device, window, i,
device_wintab->last_axis_data[i],
&axes[i]);
else
_gdk_device_translate_screen_coord (device, window,
root_x, root_y, i,
device_wintab->last_axis_data[i],
&axes[i]);
if (use == GDK_AXIS_X)
temp_x = axes[i];
else if (use == GDK_AXIS_Y)
temp_y = axes[i];
break;
default:
_gdk_device_translate_axis (device, i,
device_wintab->last_axis_data[i],
&axes[i]);
break;
}
}
if (x)
*x = temp_x;
if (y)
*y = temp_y;
}
void
_gdk_input_check_extension_events (GdkDevice *device)
{
GSList *l;
if (!GDK_IS_DEVICE_WINTAB (device))
return;
for (l = input_windows; l; l = l->next)
{
GdkWindow *window_private;
GdkEventMask event_mask = 0;
window_private = l->data;
if (gdk_device_get_mode (device) != GDK_MODE_DISABLED)
event_mask = window_private->extension_events;
gdk_window_set_device_events (GDK_WINDOW (window_private),
device, event_mask);
}
}