forked from AuroraMiddleware/gtk
426 lines
12 KiB
C
426 lines
12 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <gdk/gdkwindow.h>
|
|
|
|
#include <windowsx.h>
|
|
#include <objbase.h>
|
|
|
|
#include "gdkdisplayprivate.h"
|
|
#include "gdkdevice-virtual.h"
|
|
#include "gdkwin32.h"
|
|
|
|
static gboolean gdk_device_virtual_get_history (GdkDevice *device,
|
|
GdkWindow *window,
|
|
guint32 start,
|
|
guint32 stop,
|
|
GdkTimeCoord ***events,
|
|
gint *n_events);
|
|
static void gdk_device_virtual_get_state (GdkDevice *device,
|
|
GdkWindow *window,
|
|
gdouble *axes,
|
|
GdkModifierType *mask);
|
|
static void gdk_device_virtual_set_window_cursor (GdkDevice *device,
|
|
GdkWindow *window,
|
|
GdkCursor *cursor);
|
|
static void gdk_device_virtual_warp (GdkDevice *device,
|
|
GdkScreen *screen,
|
|
gdouble x,
|
|
gdouble y);
|
|
static void gdk_device_virtual_query_state (GdkDevice *device,
|
|
GdkWindow *window,
|
|
GdkWindow **root_window,
|
|
GdkWindow **child_window,
|
|
gdouble *root_x,
|
|
gdouble *root_y,
|
|
gdouble *win_x,
|
|
gdouble *win_y,
|
|
GdkModifierType *mask);
|
|
static GdkGrabStatus gdk_device_virtual_grab (GdkDevice *device,
|
|
GdkWindow *window,
|
|
gboolean owner_events,
|
|
GdkEventMask event_mask,
|
|
GdkWindow *confine_to,
|
|
GdkCursor *cursor,
|
|
guint32 time_);
|
|
static void gdk_device_virtual_ungrab (GdkDevice *device,
|
|
guint32 time_);
|
|
static GdkWindow * gdk_device_virtual_window_at_position (GdkDevice *device,
|
|
gdouble *win_x,
|
|
gdouble *win_y,
|
|
GdkModifierType *mask,
|
|
gboolean get_toplevel);
|
|
static void gdk_device_virtual_select_window_events (GdkDevice *device,
|
|
GdkWindow *window,
|
|
GdkEventMask event_mask);
|
|
|
|
|
|
G_DEFINE_TYPE (GdkDeviceVirtual, gdk_device_virtual, GDK_TYPE_DEVICE)
|
|
|
|
static void
|
|
gdk_device_virtual_class_init (GdkDeviceVirtualClass *klass)
|
|
{
|
|
GdkDeviceClass *device_class = GDK_DEVICE_CLASS (klass);
|
|
|
|
device_class->get_history = gdk_device_virtual_get_history;
|
|
device_class->get_state = gdk_device_virtual_get_state;
|
|
device_class->set_window_cursor = gdk_device_virtual_set_window_cursor;
|
|
device_class->warp = gdk_device_virtual_warp;
|
|
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->window_at_position = gdk_device_virtual_window_at_position;
|
|
device_class->select_window_events = gdk_device_virtual_select_window_events;
|
|
}
|
|
|
|
static void
|
|
gdk_device_virtual_init (GdkDeviceVirtual *device_virtual)
|
|
{
|
|
}
|
|
|
|
void
|
|
_gdk_device_virtual_set_active (GdkDevice *device,
|
|
GdkDevice *new_active)
|
|
{
|
|
GdkDeviceVirtual *virtual = GDK_DEVICE_VIRTUAL (device);
|
|
int n_axes, i;
|
|
GdkAtom label_atom;
|
|
GdkAxisUse use;
|
|
gdouble 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,
|
|
&label_atom, &use,
|
|
&min_value, &max_value, &resolution);
|
|
_gdk_device_add_axis (device,
|
|
label_atom, use,
|
|
min_value, max_value, resolution);
|
|
}
|
|
}
|
|
|
|
g_signal_emit_by_name (G_OBJECT (device), "changed");
|
|
}
|
|
|
|
static gboolean
|
|
gdk_device_virtual_get_history (GdkDevice *device,
|
|
GdkWindow *window,
|
|
guint32 start,
|
|
guint32 stop,
|
|
GdkTimeCoord ***events,
|
|
gint *n_events)
|
|
{
|
|
/* History is only per slave device */
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gdk_device_virtual_get_state (GdkDevice *device,
|
|
GdkWindow *window,
|
|
gdouble *axes,
|
|
GdkModifierType *mask)
|
|
{
|
|
GdkDeviceVirtual *virtual = GDK_DEVICE_VIRTUAL (device);
|
|
GdkDevice *active = virtual->active_device;
|
|
|
|
GDK_DEVICE_GET_CLASS (active)->get_state (active,
|
|
window, axes, mask);
|
|
}
|
|
|
|
static void
|
|
gdk_device_virtual_set_window_cursor (GdkDevice *device,
|
|
GdkWindow *window,
|
|
GdkCursor *cursor)
|
|
{
|
|
GdkWin32Cursor *cursor_private;
|
|
GdkWindow *parent_window;
|
|
GdkWindowImplWin32 *impl;
|
|
HCURSOR hcursor;
|
|
HCURSOR hprevcursor;
|
|
|
|
impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
|
|
cursor_private = (GdkWin32Cursor*) cursor;
|
|
|
|
hprevcursor = impl->hcursor;
|
|
|
|
if (!cursor)
|
|
hcursor = NULL;
|
|
else
|
|
hcursor = cursor_private->hcursor;
|
|
|
|
if (hcursor != NULL)
|
|
{
|
|
/* If the pointer is over our window, set new cursor */
|
|
GdkWindow *curr_window = gdk_window_get_device_position (window, device, NULL, NULL, NULL);
|
|
|
|
if (curr_window == window ||
|
|
(curr_window && window == gdk_window_get_toplevel (curr_window)))
|
|
SetCursor (hcursor);
|
|
else
|
|
{
|
|
/* Climb up the tree and find whether our window is the
|
|
* first ancestor that has cursor defined, and if so, set
|
|
* new cursor.
|
|
*/
|
|
while (curr_window && curr_window->impl &&
|
|
!GDK_WINDOW_IMPL_WIN32 (curr_window->impl)->hcursor)
|
|
{
|
|
curr_window = curr_window->parent;
|
|
if (curr_window == GDK_WINDOW (window))
|
|
{
|
|
SetCursor (hcursor);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Unset the previous cursor: Need to make sure it's no longer in
|
|
* use before we destroy it, in case we're not over our window but
|
|
* the cursor is still set to our old one.
|
|
*/
|
|
if (hprevcursor != NULL &&
|
|
GetCursor () == hprevcursor)
|
|
{
|
|
/* Look for a suitable cursor to use instead */
|
|
hcursor = NULL;
|
|
parent_window = GDK_WINDOW (window)->parent;
|
|
|
|
while (hcursor == NULL)
|
|
{
|
|
if (parent_window)
|
|
{
|
|
impl = GDK_WINDOW_IMPL_WIN32 (parent_window->impl);
|
|
hcursor = impl->hcursor;
|
|
parent_window = parent_window->parent;
|
|
}
|
|
else
|
|
hcursor = LoadCursor (NULL, IDC_ARROW);
|
|
}
|
|
|
|
SetCursor (hcursor);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gdk_device_virtual_warp (GdkDevice *device,
|
|
GdkScreen *screen,
|
|
gdouble x,
|
|
gdouble y)
|
|
{
|
|
SetCursorPos (x - _gdk_offset_x, y - _gdk_offset_y);
|
|
}
|
|
|
|
static void
|
|
gdk_device_virtual_query_state (GdkDevice *device,
|
|
GdkWindow *window,
|
|
GdkWindow **root_window,
|
|
GdkWindow **child_window,
|
|
gdouble *root_x,
|
|
gdouble *root_y,
|
|
gdouble *win_x,
|
|
gdouble *win_y,
|
|
GdkModifierType *mask)
|
|
{
|
|
GdkDeviceVirtual *virtual = GDK_DEVICE_VIRTUAL (device);
|
|
|
|
_gdk_device_query_state (virtual->active_device,
|
|
window, root_window, child_window,
|
|
root_x, root_y,
|
|
win_x, win_y,
|
|
mask);
|
|
}
|
|
|
|
static GdkGrabStatus
|
|
gdk_device_virtual_grab (GdkDevice *device,
|
|
GdkWindow *window,
|
|
gboolean owner_events,
|
|
GdkEventMask event_mask,
|
|
GdkWindow *confine_to,
|
|
GdkCursor *cursor,
|
|
guint32 time_)
|
|
{
|
|
GdkWindowImplWin32 *impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
|
|
HCURSOR hcursor;
|
|
GdkWin32Cursor *cursor_private;
|
|
|
|
cursor_private = (GdkWin32Cursor*) cursor;
|
|
|
|
if (gdk_device_get_source (device) != GDK_SOURCE_KEYBOARD)
|
|
{
|
|
if (!cursor)
|
|
hcursor = NULL;
|
|
else if ((hcursor = CopyCursor (cursor_private->hcursor)) == NULL)
|
|
WIN32_API_FAILED ("CopyCursor");
|
|
|
|
if (_gdk_win32_grab_cursor != NULL)
|
|
{
|
|
if (GetCursor () == _gdk_win32_grab_cursor)
|
|
SetCursor (NULL);
|
|
DestroyCursor (_gdk_win32_grab_cursor);
|
|
}
|
|
|
|
_gdk_win32_grab_cursor = hcursor;
|
|
|
|
if (_gdk_win32_grab_cursor != NULL)
|
|
SetCursor (_gdk_win32_grab_cursor);
|
|
else if (impl->hcursor != NULL)
|
|
SetCursor (impl->hcursor);
|
|
else
|
|
SetCursor (LoadCursor (NULL, IDC_ARROW));
|
|
|
|
SetCapture (GDK_WINDOW_HWND (window));
|
|
}
|
|
|
|
return GDK_GRAB_SUCCESS;
|
|
}
|
|
|
|
static void
|
|
gdk_device_virtual_ungrab (GdkDevice *device,
|
|
guint32 time_)
|
|
{
|
|
GdkDeviceGrabInfo *info;
|
|
GdkDisplay *display;
|
|
|
|
display = gdk_device_get_display (device);
|
|
info = _gdk_display_get_last_device_grab (display, device);
|
|
|
|
if (info)
|
|
info->serial_end = 0;
|
|
|
|
if (gdk_device_get_source (device) != GDK_SOURCE_KEYBOARD)
|
|
{
|
|
if (_gdk_win32_grab_cursor != NULL)
|
|
{
|
|
if (GetCursor () == _gdk_win32_grab_cursor)
|
|
SetCursor (NULL);
|
|
DestroyCursor (_gdk_win32_grab_cursor);
|
|
}
|
|
_gdk_win32_grab_cursor = NULL;
|
|
|
|
ReleaseCapture ();
|
|
}
|
|
|
|
_gdk_display_device_grab_update (display, device, device, 0);
|
|
}
|
|
|
|
static void
|
|
screen_to_client (HWND hwnd, POINT screen_pt, POINT *client_pt)
|
|
{
|
|
*client_pt = screen_pt;
|
|
ScreenToClient (hwnd, client_pt);
|
|
}
|
|
|
|
static GdkWindow *
|
|
gdk_device_virtual_window_at_position (GdkDevice *device,
|
|
gdouble *win_x,
|
|
gdouble *win_y,
|
|
GdkModifierType *mask,
|
|
gboolean get_toplevel)
|
|
{
|
|
GdkWindow *window = NULL;
|
|
POINT screen_pt, client_pt;
|
|
HWND hwnd, hwndc;
|
|
RECT rect;
|
|
|
|
GetCursorPos (&screen_pt);
|
|
|
|
if (get_toplevel)
|
|
{
|
|
/* Only consider visible children of the desktop to avoid the various
|
|
* non-visible windows you often find on a running Windows box. These
|
|
* might overlap our windows and cause our walk to fail. As we assume
|
|
* WindowFromPoint() can find our windows, we follow similar logic
|
|
* here, and ignore invisible and disabled windows.
|
|
*/
|
|
hwnd = GetDesktopWindow ();
|
|
do {
|
|
window = gdk_win32_handle_table_lookup (hwnd);
|
|
|
|
if (window != NULL &&
|
|
GDK_WINDOW_TYPE (window) != GDK_WINDOW_ROOT &&
|
|
GDK_WINDOW_TYPE (window) != GDK_WINDOW_FOREIGN)
|
|
break;
|
|
|
|
screen_to_client (hwnd, screen_pt, &client_pt);
|
|
hwndc = ChildWindowFromPointEx (hwnd, client_pt, CWP_SKIPDISABLED |
|
|
CWP_SKIPINVISIBLE);
|
|
|
|
/* Verify that we're really inside the client area of the window */
|
|
if (hwndc != hwnd)
|
|
{
|
|
GetClientRect (hwndc, &rect);
|
|
screen_to_client (hwndc, screen_pt, &client_pt);
|
|
if (!PtInRect (&rect, client_pt))
|
|
hwndc = hwnd;
|
|
}
|
|
|
|
} while (hwndc != hwnd && (hwnd = hwndc, 1));
|
|
|
|
}
|
|
else
|
|
{
|
|
hwnd = WindowFromPoint (screen_pt);
|
|
|
|
/* Verify that we're really inside the client area of the window */
|
|
GetClientRect (hwnd, &rect);
|
|
screen_to_client (hwnd, screen_pt, &client_pt);
|
|
if (!PtInRect (&rect, client_pt))
|
|
hwnd = NULL;
|
|
|
|
/* If we didn't hit any window at that point, return the desktop */
|
|
if (hwnd == NULL)
|
|
{
|
|
if (win_x)
|
|
*win_x = screen_pt.x + _gdk_offset_x;
|
|
if (win_y)
|
|
*win_y = screen_pt.y + _gdk_offset_y;
|
|
return _gdk_root;
|
|
}
|
|
|
|
window = gdk_win32_handle_table_lookup (hwnd);
|
|
}
|
|
|
|
if (window && (win_x || win_y))
|
|
{
|
|
if (win_x)
|
|
*win_x = client_pt.x;
|
|
if (win_y)
|
|
*win_y = client_pt.y;
|
|
}
|
|
|
|
return window;
|
|
}
|
|
|
|
static void
|
|
gdk_device_virtual_select_window_events (GdkDevice *device,
|
|
GdkWindow *window,
|
|
GdkEventMask event_mask)
|
|
{
|
|
}
|