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gtk/gdk/win32/gdkdevice-win32.c
Chun-wei Fan ae79dd7068 GdkWin32: Avoid Using Deprecated API 
Update the Win32 GDK backend to not use the deprecated GDK APIs.

https://bugzilla.gnome.org/show_bug.cgi?id=705068
2013-08-14 08:03:19 +08:00

347 lines
11 KiB
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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/gdkwindow.h>
#include <windowsx.h>
#include <objbase.h>
#include "gdkdisplayprivate.h"
#include "gdkdevice-win32.h"
#include "gdkwin32.h"
static gboolean gdk_device_win32_get_history (GdkDevice *device,
GdkWindow *window,
guint32 start,
guint32 stop,
GdkTimeCoord ***events,
gint *n_events);
static void gdk_device_win32_get_state (GdkDevice *device,
GdkWindow *window,
gdouble *axes,
GdkModifierType *mask);
static void gdk_device_win32_set_window_cursor (GdkDevice *device,
GdkWindow *window,
GdkCursor *cursor);
static void gdk_device_win32_warp (GdkDevice *device,
GdkScreen *screen,
gdouble x,
gdouble y);
static void gdk_device_win32_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_win32_grab (GdkDevice *device,
GdkWindow *window,
gboolean owner_events,
GdkEventMask event_mask,
GdkWindow *confine_to,
GdkCursor *cursor,
guint32 time_);
static void gdk_device_win32_ungrab (GdkDevice *device,
guint32 time_);
static GdkWindow * gdk_device_win32_window_at_position (GdkDevice *device,
gdouble *win_x,
gdouble *win_y,
GdkModifierType *mask,
gboolean get_toplevel);
static void gdk_device_win32_select_window_events (GdkDevice *device,
GdkWindow *window,
GdkEventMask event_mask);
G_DEFINE_TYPE (GdkDeviceWin32, gdk_device_win32, GDK_TYPE_DEVICE)
static void
gdk_device_win32_class_init (GdkDeviceWin32Class *klass)
{
GdkDeviceClass *device_class = GDK_DEVICE_CLASS (klass);
device_class->get_history = gdk_device_win32_get_history;
device_class->get_state = gdk_device_win32_get_state;
device_class->set_window_cursor = gdk_device_win32_set_window_cursor;
device_class->warp = gdk_device_win32_warp;
device_class->query_state = gdk_device_win32_query_state;
device_class->grab = gdk_device_win32_grab;
device_class->ungrab = gdk_device_win32_ungrab;
device_class->window_at_position = gdk_device_win32_window_at_position;
device_class->select_window_events = gdk_device_win32_select_window_events;
}
static void
gdk_device_win32_init (GdkDeviceWin32 *device_win32)
{
GdkDevice *device;
device = GDK_DEVICE (device_win32);
_gdk_device_add_axis (device, GDK_NONE, GDK_AXIS_X, 0, 0, 1);
_gdk_device_add_axis (device, GDK_NONE, GDK_AXIS_Y, 0, 0, 1);
}
static gboolean
gdk_device_win32_get_history (GdkDevice *device,
GdkWindow *window,
guint32 start,
guint32 stop,
GdkTimeCoord ***events,
gint *n_events)
{
return FALSE;
}
static void
gdk_device_win32_get_state (GdkDevice *device,
GdkWindow *window,
gdouble *axes,
GdkModifierType *mask)
{
gint x_int, y_int;
gdk_window_get_device_position (window, device, &x_int, &y_int, mask);
if (axes)
{
axes[0] = x_int;
axes[1] = y_int;
}
}
static void
gdk_device_win32_set_window_cursor (GdkDevice *device,
GdkWindow *window,
GdkCursor *cursor)
{
}
static void
gdk_device_win32_warp (GdkDevice *device,
GdkScreen *screen,
gdouble x,
gdouble y)
{
}
static GdkModifierType
get_current_mask (void)
{
GdkModifierType mask;
BYTE kbd[256];
GetKeyboardState (kbd);
mask = 0;
if (kbd[VK_SHIFT] & 0x80)
mask |= GDK_SHIFT_MASK;
if (kbd[VK_CAPITAL] & 0x80)
mask |= GDK_LOCK_MASK;
if (kbd[VK_CONTROL] & 0x80)
mask |= GDK_CONTROL_MASK;
if (kbd[VK_MENU] & 0x80)
mask |= GDK_MOD1_MASK;
if (kbd[VK_LBUTTON] & 0x80)
mask |= GDK_BUTTON1_MASK;
if (kbd[VK_MBUTTON] & 0x80)
mask |= GDK_BUTTON2_MASK;
if (kbd[VK_RBUTTON] & 0x80)
mask |= GDK_BUTTON3_MASK;
return mask;
}
static void
gdk_device_win32_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)
{
POINT point;
HWND hwnd, hwndc;
hwnd = GDK_WINDOW_HWND (window);
GetCursorPos (&point);
if (root_x)
*root_x = point.x;
if (root_y)
*root_y = point.y;
ScreenToClient (hwnd, &point);
if (win_x)
*win_x = point.x;
if (win_y)
*win_y = point.y;
if (window == _gdk_root)
{
if (win_x)
*win_x += _gdk_offset_x;
if (win_y)
*win_y += _gdk_offset_y;
}
if (child_window)
{
hwndc = ChildWindowFromPoint (hwnd, point);
if (hwndc && hwndc != hwnd)
*child_window = gdk_win32_handle_table_lookup (hwndc);
else
*child_window = NULL; /* Direct child unknown to gdk */
}
if (root_window)
{
GdkScreen *screen;
screen = gdk_window_get_screen (window);
*root_window = gdk_screen_get_root_window (screen);
}
if (mask)
*mask = get_current_mask ();
}
static GdkGrabStatus
gdk_device_win32_grab (GdkDevice *device,
GdkWindow *window,
gboolean owner_events,
GdkEventMask event_mask,
GdkWindow *confine_to,
GdkCursor *cursor,
guint32 time_)
{
/* No support for grabbing the slave atm */
return GDK_GRAB_NOT_VIEWABLE;
}
static void
gdk_device_win32_ungrab (GdkDevice *device,
guint32 time_)
{
}
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_win32_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_win32_select_window_events (GdkDevice *device,
GdkWindow *window,
GdkEventMask event_mask)
{
}
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