/* GDK - The GIMP Drawing Kit * Copyright (C) 2009 Carlos Garnacho * * 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 #include #include #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 (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 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, gint *win_x, gint *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) { }