/* Called by gdk_x11_display_finalize to flush any cached cursors
* for a dead display.
*/
void
_gdk_x11_cursor_display_finalize (GdkDisplay *display)
{
GSList* item;
GSList** itemp; /* Pointer to the thing to fix when we delete an item */
item = cursor_cache;
itemp = &cursor_cache;
while (item)
{
GdkX11Cursor* cursor = (GdkX11Cursor*)(item->data);
if (gdk_cursor_get_display (GDK_CURSOR (cursor)) == display)
{
GSList* olditem;
gdk_cursor_unref ((GdkCursor*) cursor);
/* Remove this item from the list */
*(itemp) = item->next;
olditem = item;
item = g_slist_next (item);
g_slist_free_1 (olditem);
}
else
{
itemp = &(item->next);
item = g_slist_next (item);
}
}
}
static int
gdk_object_cursor_destructor(ClipMachine * ClipMachineMemory, C_object * ccur)
{
if (ccur && GDK_IS_CURSOR(ccur) && ccur->ref_count >= 0)
gdk_cursor_destroy(GDK_CURSOR(ccur->object));
return 0;
}
/* Returns 0 on a match
*/
static gint
cache_compare_func (gconstpointer listelem,
gconstpointer target)
{
GdkX11Cursor* cursor = (GdkX11Cursor*)listelem;
struct cursor_cache_key* key = (struct cursor_cache_key*)target;
if ((cursor->cursor.type != key->type) ||
(gdk_cursor_get_display (GDK_CURSOR (cursor)) != key->display))
return 1; /* No match */
/* Elements marked as pixmap must be named cursors
* (since we don't store normal pixmap cursors
*/
if (key->type == GDK_CURSOR_IS_PIXMAP)
return strcmp (key->name, cursor->name);
return 0; /* Match */
}
static void
gdk_cursor_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GdkCursor *cursor = GDK_CURSOR (object);
switch (prop_id)
{
case PROP_CURSOR_TYPE:
g_value_set_enum (value, cursor->type);
break;
case PROP_DISPLAY:
g_value_set_object (value, cursor->display);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* Grabs the pointer (usually a mouse) so that all events are passed to this
* application until the pointer is ungrabbed with gdk_pointer_ungrab(), or
* the grab window becomes unviewable. This overrides any previous pointer
* grab by this client.
* Pointer grabs are used for operations which need complete control over mouse
* events, even if the mouse leaves the application. For example in GTK+ it is
* used for Drag and Drop, for dragging the handle in the GtkHPaned and GtkVPaned
* widgets, and for resizing columns in GtkCList widgets.
* Note that if the event mask of an X window has selected both button press and
* button release events, then a button press event will cause an automatic pointer
* grab until the button is released. X does this automatically since most
* applications expect to receive button press and release events in pairs.
* It is equivalent to a pointer grab on the window with owner_events set to TRUE. */
int
clip_GDK_POINTERGRAB(ClipMachine * ClipMachineMemory)
{
C_widget *cwin = _fetch_cw_arg(ClipMachineMemory);
GdkWindow *win = NULL;
gboolean owner_events = _clip_parl(ClipMachineMemory, 2);
GdkEventMask event_mask = _clip_parnl(ClipMachineMemory, 3);
C_widget *cconfine_to = _fetch_cwidget(ClipMachineMemory, _clip_spar(ClipMachineMemory, 4));
GdkWindow *confine_to = NULL;
C_object *ccursor = _fetch_cobject(ClipMachineMemory, _clip_spar(ClipMachineMemory, 5));
GdkCursor *cursor = NULL;
CHECKCWID(cwin, GTK_IS_WIDGET);
CHECKOPT(2, LOGICAL_type_of_ClipVarType);
CHECKOPT(3, NUMERIC_type_of_ClipVarType);
CHECKOPT2(4, MAP_type_of_ClipVarType, NUMERIC_type_of_ClipVarType);
CHECKCWIDOPT(cwin, GTK_IS_WIDGET);
CHECKOPT2(5, MAP_type_of_ClipVarType, NUMERIC_type_of_ClipVarType);
CHECKCOBJOPT(ccursor, GDK_IS_CURSOR(ccursor));
if (cwin && cwin->widget)
win = cwin->widget->window;
if (cconfine_to && cconfine_to->widget)
confine_to = cconfine_to->widget->window;
if (ccursor)
cursor = GDK_CURSOR(ccursor->object);
_clip_retni(ClipMachineMemory, gdk_pointer_grab(win, owner_events, event_mask, confine_to, cursor, GDK_CURRENT_TIME));
return 0;
err:
return 1;
}
static void
gdk_cursor_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GdkCursor *cursor = GDK_CURSOR (object);
switch (prop_id)
{
case PROP_CURSOR_TYPE:
cursor->type = g_value_get_enum (value);
break;
case PROP_DISPLAY:
cursor->display = g_value_get_object (value);
/* check that implementations actually provide the display when constructing */
g_assert (cursor->display != NULL);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
}
}
/*** GdkX11Cursor ***/
G_DEFINE_TYPE (GdkX11Cursor, gdk_x11_cursor, GDK_TYPE_CURSOR)
static GdkPixbuf* gdk_x11_cursor_get_image (GdkCursor *cursor);
static void
gdk_x11_cursor_finalize (GObject *object)
{
GdkX11Cursor *private = GDK_X11_CURSOR (object);
GdkDisplay *display;
display = gdk_cursor_get_display (GDK_CURSOR (object));
if (private->xcursor && !gdk_display_is_closed (display))
XFreeCursor (GDK_DISPLAY_XDISPLAY (display), private->xcursor);
g_free (private->name);
G_OBJECT_CLASS (gdk_x11_cursor_parent_class)->finalize (object);
}
static void
gdk_x11_cursor_class_init (GdkX11CursorClass *xcursor_class)
{
GdkCursorClass *cursor_class = GDK_CURSOR_CLASS (xcursor_class);
GObjectClass *object_class = G_OBJECT_CLASS (xcursor_class);
object_class->finalize = gdk_x11_cursor_finalize;
