gtk2/gdk/win32/gdkdevice-win32.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

403 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, 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 "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,
gint x,
gint y);
static gboolean gdk_device_win32_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_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,
gint *win_x,
gint *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_pointer (window, &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)
{
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_pointer (window, 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_win32_warp (GdkDevice *device,
GdkScreen *screen,
gint x,
gint y)
{
SetCursorPos (x - _gdk_offset_x, y - _gdk_offset_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 gboolean
gdk_device_win32_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)
{
gboolean return_val;
POINT point;
HWND hwnd, hwndc;
g_return_val_if_fail (window == NULL || GDK_IS_WINDOW (window), FALSE);
return_val = TRUE;
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 ((GdkNativeWindow) 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 ();
return TRUE;
}
static GdkGrabStatus
gdk_device_win32_grab (GdkDevice *device,
GdkWindow *window,
gboolean owner_events,
GdkEventMask event_mask,
GdkWindow *confine_to,
GdkCursor *cursor,
guint32 time_)
{
if (gdk_device_get_source (device) != GDK_SOURCE_KEYBOARD)
SetCapture (GDK_WINDOW_HWND (window));
return GDK_GRAB_SUCCESS;
}
static void
gdk_device_win32_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)
ReleaseCapture ();
_gdk_display_device_grab_update (display, device, NULL, 0);
}
static GdkWindow *
gdk_device_win32_window_at_position (GdkDevice *device,
gint *win_x,
gint *win_y,
GdkModifierType *mask,
gboolean get_toplevel)
{
GdkWindow *window;
POINT point, pointc;
HWND hwnd, hwndc;
RECT rect;
GetCursorPos (&pointc);
point = pointc;
hwnd = WindowFromPoint (point);
if (hwnd == NULL)
{
window = _gdk_root;
*win_x = pointc.x + _gdk_offset_x;
*win_y = pointc.y + _gdk_offset_y;
return window;
}
ScreenToClient (hwnd, &point);
do
{
if (get_toplevel &&
(window = gdk_win32_handle_table_lookup ((GdkNativeWindow) hwnd)) != NULL &&
GDK_WINDOW_TYPE (window) != GDK_WINDOW_FOREIGN)
break;
hwndc = ChildWindowFromPoint (hwnd, point);
ClientToScreen (hwnd, &point);
ScreenToClient (hwndc, &point);
}
while (hwndc != hwnd && (hwnd = hwndc, 1));
window = gdk_win32_handle_table_lookup ((GdkNativeWindow) hwnd);
if (window && (win_x || win_y))
{
GetClientRect (hwnd, &rect);
*win_x = point.x - rect.left;
*win_y = point.y - rect.top;
}
return window;
}
static void
gdk_device_win32_select_window_events (GdkDevice *device,
GdkWindow *window,
GdkEventMask event_mask)
{
}