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/* 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gdk/gdksurface.h>
#include <windowsx.h>
#include <objbase.h>
#include "gdkdisplayprivate.h"
#include "gdkdevice-virtual.h"
#include "gdkdevice-win32.h"
#include "gdkwin32.h"
#include "gdkdisplay-win32.h"
G_DEFINE_TYPE (GdkDeviceVirtual, gdk_device_virtual, GDK_TYPE_DEVICE)
void
_gdk_device_virtual_set_active (GdkDevice *device,
GdkDevice *new_active)
{
GdkDeviceVirtual *virtual = GDK_DEVICE_VIRTUAL (device);
int n_axes, i;
GdkAxisUse use;
double min_value, max_value, resolution;
if (virtual->active_device == new_active)
return;
virtual->active_device = new_active;
if (gdk_device_get_source (device) != GDK_SOURCE_KEYBOARD)
{
_gdk_device_reset_axes (device);
n_axes = gdk_device_get_n_axes (new_active);
for (i = 0; i < n_axes; i++)
{
_gdk_device_get_axis_info (new_active, i, &use,
&min_value, &max_value, &resolution);
_gdk_device_add_axis (device, use, min_value, max_value, resolution);
}
}
g_signal_emit_by_name (G_OBJECT (device), "changed");
}
static void
gdk_device_virtual_set_surface_cursor (GdkDevice *device,
GdkSurface *window,
GdkCursor *cursor)
{
GdkDisplay *display = gdk_surface_get_display (window);
GdkWin32HCursor *win32_hcursor = NULL;
if (cursor == NULL)
cursor = gdk_cursor_new_from_name ("default", NULL);
if (display != NULL)
win32_hcursor = gdk_win32_display_get_win32hcursor (GDK_WIN32_DISPLAY (display), cursor);
/* This is correct because the code up the stack already
* checked that cursor is currently inside this window,
* and wouldn't have called this function otherwise.
*/
if (win32_hcursor != NULL)
SetCursor (gdk_win32_hcursor_get_handle (win32_hcursor));
g_set_object (&GDK_WIN32_SURFACE (window)->cursor, win32_hcursor);
}
void
gdk_device_virtual_query_state (GdkDevice *device,
GdkSurface *window,
GdkSurface **child_window,
double *win_x,
double *win_y,
GdkModifierType *mask)
{
GdkDeviceVirtual *virtual = GDK_DEVICE_VIRTUAL (device);
_gdk_device_win32_query_state (virtual->active_device,
window, child_window,
win_x, win_y,
mask);
}
static GdkGrabStatus
gdk_device_virtual_grab (GdkDevice *device,
GdkSurface *window,
gboolean owner_events,
GdkEventMask event_mask,
GdkSurface *confine_to,
GdkCursor *cursor,
guint32 time_)
{
if (gdk_device_get_source (device) != GDK_SOURCE_KEYBOARD)
{
GdkWin32HCursor *win32_hcursor;
GdkWin32Display *display = GDK_WIN32_DISPLAY (gdk_device_get_display (device));
win32_hcursor = NULL;
if (cursor != NULL)
win32_hcursor = gdk_win32_display_get_win32hcursor (display, cursor);
g_set_object (&display->grab_cursor, win32_hcursor);
if (display->grab_cursor != NULL)
SetCursor (gdk_win32_hcursor_get_handle (display->grab_cursor));
else
SetCursor (LoadCursor (NULL, IDC_ARROW));
SetCapture (GDK_SURFACE_HWND (window));
}
return GDK_GRAB_SUCCESS;
}
static void
gdk_device_virtual_ungrab (GdkDevice *device,
guint32 time_)
{
GdkDeviceGrabInfo *info;
GdkDisplay *display;
GdkWin32Display *win32_display;
display = gdk_device_get_display (device);
win32_display = GDK_WIN32_DISPLAY (display);
info = _gdk_display_get_last_device_grab (display, device);
if (info)
info->serial_end = 0;
if (gdk_device_get_source (device) != GDK_SOURCE_KEYBOARD)
{
g_clear_object (&win32_display->grab_cursor);
ReleaseCapture ();
}
_gdk_display_device_grab_update (display, device, 0);
}
static void
gdk_device_virtual_class_init (GdkDeviceVirtualClass *klass)
{
GdkDeviceClass *device_class = GDK_DEVICE_CLASS (klass);
device_class->set_surface_cursor = gdk_device_virtual_set_surface_cursor;
device_class->query_state = gdk_device_virtual_query_state;
device_class->grab = gdk_device_virtual_grab;
device_class->ungrab = gdk_device_virtual_ungrab;
device_class->surface_at_position = _gdk_device_win32_surface_at_position;
}
static void
gdk_device_virtual_init (GdkDeviceVirtual *device_virtual)
{
}
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