297 lines
		
	
	
		
			8.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			297 lines
		
	
	
		
			8.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /* GDK - The GIMP Drawing Kit
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|  * Copyright (C) 2009 Carlos Garnacho <carlosg@gnome.org>
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|  *
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|  * This library is free software; you can redistribute it and/or
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|  * modify it under the terms of the GNU Lesser General Public
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|  * License as published by the Free Software Foundation; either
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|  * version 2 of the License, or (at your option) any later version.
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|  *
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|  * This library is distributed in the hope that it will be useful,
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|  * but WITHOUT ANY WARRANTY; without even the implied warranty of
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|  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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|  * Lesser General Public License for more details.
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|  *
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|  * You should have received a copy of the GNU Lesser General Public
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|  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
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|  */
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| 
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| #include "config.h"
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| 
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| #include <gdk/gdkwindow.h>
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| 
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| #include <windowsx.h>
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| #include <objbase.h>
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| 
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| #include "gdkwin32.h"
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| #include "gdkdevice-wintab.h"
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| 
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| G_DEFINE_TYPE (GdkDeviceWintab, gdk_device_wintab, GDK_TYPE_DEVICE)
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| 
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| static gboolean
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| gdk_device_wintab_get_history (GdkDevice      *device,
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|                                GdkWindow      *window,
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|                                guint32         start,
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|                                guint32         stop,
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|                                GdkTimeCoord ***events,
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|                                gint           *n_events)
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| {
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|   return FALSE;
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| }
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| 
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| static GdkModifierType
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| get_current_mask (void)
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| {
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|   GdkModifierType mask;
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|   BYTE kbd[256];
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| 
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|   GetKeyboardState (kbd);
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|   mask = 0;
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|   if (kbd[VK_SHIFT] & 0x80)
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|     mask |= GDK_SHIFT_MASK;
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|   if (kbd[VK_CAPITAL] & 0x80)
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|     mask |= GDK_LOCK_MASK;
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|   if (kbd[VK_CONTROL] & 0x80)
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|     mask |= GDK_CONTROL_MASK;
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|   if (kbd[VK_MENU] & 0x80)
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|     mask |= GDK_MOD1_MASK;
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|   if (kbd[VK_LBUTTON] & 0x80)
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|     mask |= GDK_BUTTON1_MASK;
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|   if (kbd[VK_MBUTTON] & 0x80)
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|     mask |= GDK_BUTTON2_MASK;
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|   if (kbd[VK_RBUTTON] & 0x80)
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|     mask |= GDK_BUTTON3_MASK;
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| 
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|   return mask;
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| }
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| 
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| static void
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| gdk_device_wintab_get_state (GdkDevice       *device,
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|                              GdkWindow       *window,
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|                              gdouble         *axes,
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|                              GdkModifierType *mask)
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| {
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|   GdkDeviceWintab *device_wintab;
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| 
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|   device_wintab = GDK_DEVICE_WINTAB (device);
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| 
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|   /* For now just use the last known button and axis state of the device.
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|    * Since graphical tablets send an insane amount of motion events each
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|    * second, the info should be fairly up to date */
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|   if (mask)
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|     {
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|       *mask = get_current_mask ();
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|       *mask &= 0xFF; /* Mask away core pointer buttons */
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|       *mask |= ((device_wintab->button_state << 8)
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|                 & (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK
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|                    | GDK_BUTTON3_MASK | GDK_BUTTON4_MASK
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|                    | GDK_BUTTON5_MASK));
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|     }
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| 
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|   if (axes && device_wintab->last_axis_data)
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|     _gdk_device_wintab_translate_axes (device_wintab, window, axes, NULL, NULL);
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| }
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| 
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| static void
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| gdk_device_wintab_set_window_cursor (GdkDevice *device,
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|                                      GdkWindow *window,
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|                                      GdkCursor *cursor)
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| {
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| }
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| 
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| static void
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| gdk_device_wintab_warp (GdkDevice *device,
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|                         GdkScreen *screen,
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|                         gdouble   x,
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|                         gdouble   y)
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| {
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| }
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| 
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| static void
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| gdk_device_wintab_query_state (GdkDevice        *device,
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|                                GdkWindow        *window,
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|                                GdkWindow       **root_window,
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|                                GdkWindow       **child_window,
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|                                gdouble          *root_x,
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|                                gdouble          *root_y,
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|                                gdouble          *win_x,
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|                                gdouble          *win_y,
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|                                GdkModifierType  *mask)
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| {
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|   GdkDeviceWintab *device_wintab;
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|   GdkScreen *screen;
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|   POINT point;
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|   HWND hwnd, hwndc;
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|   GdkWindowImplWin32 *impl;
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| 
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|   device_wintab = GDK_DEVICE_WINTAB (device);
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|   screen = gdk_window_get_screen (window);
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|   impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
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| 
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|   hwnd = GDK_WINDOW_HWND (window);
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|   _gdk_win32_get_cursor_pos (&point);
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| 
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|   if (root_x)
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|     *root_x = (point.x + _gdk_offset_x) / impl->window_scale;
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| 
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|   if (root_y)
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|     *root_y = (point.y + _gdk_offset_y) / impl->window_scale;
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| 
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|   if (window == gdk_screen_get_root_window (screen))
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|     {
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|       if (win_x)
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|         *win_x = (point.x + _gdk_offset_x) / impl->window_scale;
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| 
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|       if (win_y)
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|         *win_y = (point.y + _gdk_offset_y) / impl->window_scale;
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|     }
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|   else
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|     {
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|       ScreenToClient (hwnd, &point);
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| 
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|       if (win_x)
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|         *win_x = point.x / impl->window_scale;
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| 
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|       if (win_y)
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|         *win_y = point.y / impl->window_scale;
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|     }
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| 
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|   if (child_window)
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|     {
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|       hwndc = ChildWindowFromPoint (hwnd, point);
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| 
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|       if (hwndc && hwndc != hwnd)
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|         *child_window = gdk_win32_handle_table_lookup (hwndc);
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|       else
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|         *child_window = NULL; /* Direct child unknown to gdk */
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|     }
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| 
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|   if (root_window)
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|     *root_window = gdk_screen_get_root_window (screen);
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| 
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|   if (mask)
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|     {
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|       *mask = get_current_mask ();
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|       *mask &= 0xFF; /* Mask away core pointer buttons */
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|       *mask |= ((device_wintab->button_state << 8)
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|                 & (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK
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|                    | GDK_BUTTON3_MASK | GDK_BUTTON4_MASK
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|                    | GDK_BUTTON5_MASK));
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| 
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|     }
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| }
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| 
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| static GdkGrabStatus
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| gdk_device_wintab_grab (GdkDevice    *device,
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|                         GdkWindow    *window,
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|                         gboolean      owner_events,
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|                         GdkEventMask  event_mask,
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|                         GdkWindow    *confine_to,
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|                         GdkCursor    *cursor,
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|                         guint32       time_)
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| {
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|   return GDK_GRAB_SUCCESS;
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| }
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| 
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| static void
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| gdk_device_wintab_ungrab (GdkDevice *device,
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|                           guint32    time_)
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| {
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| }
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| 
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| static GdkWindow *
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| gdk_device_wintab_window_at_position (GdkDevice       *device,
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|                                       gdouble         *win_x,
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|                                       gdouble         *win_y,
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|                                       GdkModifierType *mask,
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|                                       gboolean         get_toplevel)
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| {
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|   return NULL;
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| }
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| 
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| static void
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| gdk_device_wintab_select_window_events (GdkDevice    *device,
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|                                         GdkWindow    *window,
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|                                         GdkEventMask  event_mask)
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| {
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| }
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| 
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| void
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| _gdk_device_wintab_translate_axes (GdkDeviceWintab *device_wintab,
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|                                    GdkWindow       *window,
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|                                    gdouble         *axes,
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|                                    gdouble         *x,
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|                                    gdouble         *y)
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| {
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|   GdkDevice *device;
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|   GdkWindow *impl_window;
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|   gint root_x, root_y;
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|   gdouble temp_x, temp_y;
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|   gint i;
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| 
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|   device = GDK_DEVICE (device_wintab);
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|   impl_window = _gdk_window_get_impl_window (window);
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|   temp_x = temp_y = 0;
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| 
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|   gdk_window_get_origin (impl_window, &root_x, &root_y);
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| 
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|   for (i = 0; i < gdk_device_get_n_axes (device); i++)
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|     {
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|       GdkAxisUse use;
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| 
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|       use = gdk_device_get_axis_use (device, i);
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| 
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|       switch (use)
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|         {
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|         case GDK_AXIS_X:
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|         case GDK_AXIS_Y:
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|           if (gdk_device_get_mode (device) == GDK_MODE_WINDOW)
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|             _gdk_device_translate_window_coord (device, window, i,
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|                                                 device_wintab->last_axis_data[i],
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|                                                 &axes[i]);
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|           else
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|             _gdk_device_translate_screen_coord (device, window,
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|                                                 root_x, root_y, i,
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|                                                 device_wintab->last_axis_data[i],
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|                                                 &axes[i]);
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|           if (use == GDK_AXIS_X)
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|             temp_x = axes[i];
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|           else if (use == GDK_AXIS_Y)
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|             temp_y = axes[i];
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| 
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|           break;
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|         default:
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|           _gdk_device_translate_axis (device, i,
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|                                       device_wintab->last_axis_data[i],
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|                                       &axes[i]);
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|           break;
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|         }
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|     }
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| 
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|   if (x)
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|     *x = temp_x;
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| 
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|   if (y)
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|     *y = temp_y;
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| }
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| 
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| static void
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| gdk_device_wintab_class_init (GdkDeviceWintabClass *klass)
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| {
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|   GdkDeviceClass *device_class = GDK_DEVICE_CLASS (klass);
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| 
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|   device_class->get_history = gdk_device_wintab_get_history;
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|   device_class->get_state = gdk_device_wintab_get_state;
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|   device_class->set_window_cursor = gdk_device_wintab_set_window_cursor;
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|   device_class->warp = gdk_device_wintab_warp;
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|   device_class->query_state = gdk_device_wintab_query_state;
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|   device_class->grab = gdk_device_wintab_grab;
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|   device_class->ungrab = gdk_device_wintab_ungrab;
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|   device_class->window_at_position = gdk_device_wintab_window_at_position;
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|   device_class->select_window_events = gdk_device_wintab_select_window_events;
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| }
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| 
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| static void
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| gdk_device_wintab_init (GdkDeviceWintab *device_wintab)
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| {
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| }
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