* 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.
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
-#include <X11/Xlib.h>
-#include <X11/cursorfont.h>
+#include "config.h"
+
+/* needs to be first because any header might include gdk-pixbuf.h otherwise */
+#define GDK_PIXBUF_ENABLE_BACKEND
+#include <gdk-pixbuf/gdk-pixbuf.h>
-#include "gdkprivate-x11.h"
#include "gdkcursor.h"
-#include "gdkpixmap-x11.h"
-#include "gdkx.h"
-#include <gdk/gdkpixmap.h>
+#include "gdkcursorprivate.h"
+#include "gdkprivate-x11.h"
+#include "gdkdisplay-x11.h"
-/**
- * gdk_cursor_new_for_display:
- * @display: the #GdkDisplay for which the cursor will be created
- * @cursor_type: cursor to create
- *
- * Creates a new cursor from the set of builtin cursors.
- * Some useful ones are:
- * <itemizedlist>
- * <listitem><para>
- * <inlinegraphic format="PNG" fileref="right_ptr.png"></inlinegraphic> #GDK_RIGHT_PTR (right-facing arrow)
- * </para></listitem>
- * <listitem><para>
- * <inlinegraphic format="PNG" fileref="crosshair.png"></inlinegraphic> #GDK_CROSSHAIR (crosshair)
- * </para></listitem>
- * <listitem><para>
- * <inlinegraphic format="PNG" fileref="xterm.png"></inlinegraphic> #GDK_XTERM (I-beam)
- * </para></listitem>
- * <listitem><para>
- * <inlinegraphic format="PNG" fileref="watch.png"></inlinegraphic> #GDK_WATCH (busy)
- * </para></listitem>
- * <listitem><para>
- * <inlinegraphic format="PNG" fileref="fleur.png"></inlinegraphic> #GDK_FLEUR (for moving objects)
- * </para></listitem>
- * <listitem><para>
- * <inlinegraphic format="PNG" fileref="hand1.png"></inlinegraphic> #GDK_HAND1 (a right-pointing hand)
- * </para></listitem>
- * <listitem><para>
- * <inlinegraphic format="PNG" fileref="hand2.png"></inlinegraphic> #GDK_HAND2 (a left-pointing hand)
- * </para></listitem>
- * <listitem><para>
- * <inlinegraphic format="PNG" fileref="left_side.png"></inlinegraphic> #GDK_LEFT_SIDE (resize left side)
- * </para></listitem>
- * <listitem><para>
- * <inlinegraphic format="PNG" fileref="right_side.png"></inlinegraphic> #GDK_RIGHT_SIDE (resize right side)
- * </para></listitem>
- * <listitem><para>
- * <inlinegraphic format="PNG" fileref="top_left_corner.png"></inlinegraphic> #GDK_TOP_LEFT_CORNER (resize northwest corner)
- * </para></listitem>
- * <listitem><para>
- * <inlinegraphic format="PNG" fileref="top_right_corner.png"></inlinegraphic> #GDK_TOP_RIGHT_CORNER (resize northeast corner)
- * </para></listitem>
- * <listitem><para>
- * <inlinegraphic format="PNG" fileref="bottom_left_corner.png"></inlinegraphic> #GDK_BOTTOM_LEFT_CORNER (resize southwest corner)
- * </para></listitem>
- * <listitem><para>
- * <inlinegraphic format="PNG" fileref="bottom_right_corner.png"></inlinegraphic> #GDK_BOTTOM_RIGHT_CORNER (resize southeast corner)
- * </para></listitem>
- * <listitem><para>
- * <inlinegraphic format="PNG" fileref="top_side.png"></inlinegraphic> #GDK_TOP_SIDE (resize top side)
- * </para></listitem>
- * <listitem><para>
- * <inlinegraphic format="PNG" fileref="bottom_side.png"></inlinegraphic> #GDK_BOTTOM_SIDE (resize bottom side)
- * </para></listitem>
- * <listitem><para>
- * <inlinegraphic format="PNG" fileref="sb_h_double_arrow.png"></inlinegraphic> #GDK_SB_H_DOUBLE_ARROW (move vertical splitter)
- * </para></listitem>
- * <listitem><para>
- * <inlinegraphic format="PNG" fileref="sb_v_double_arrow.png"></inlinegraphic> #GDK_SB_V_DOUBLE_ARROW (move horizontal splitter)
- * </para></listitem>
- * </itemizedlist>
- *
- * To make the cursor invisible, use gdk_cursor_new_from_pixmap() to create
- * a cursor with no pixels in it.
- *
- * Return value: a new #GdkCursor
- **/
-GdkCursor*
-gdk_cursor_new_for_display (GdkDisplay *display,
- GdkCursorType cursor_type)
+#include <X11/Xlib.h>
+#include <X11/cursorfont.h>
+#ifdef HAVE_XCURSOR
+#include <X11/Xcursor/Xcursor.h>
+#endif
+#ifdef HAVE_XFIXES
+#include <X11/extensions/Xfixes.h>
+#endif
+#include <string.h>
+#include <errno.h>
+
+struct _GdkX11Cursor
{
- GdkCursorPrivate *private;
- GdkCursor *cursor;
+ GdkCursor cursor;
+
Cursor xcursor;
+ gchar *name;
+ guint serial;
+};
- g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
+struct _GdkX11CursorClass
+{
+ GdkCursorClass cursor_class;
+};
- if (display->closed)
- xcursor = None;
- else
- xcursor = XCreateFontCursor (GDK_DISPLAY_XDISPLAY (display), cursor_type);
-
- private = g_new (GdkCursorPrivate, 1);
- private->display = display;
- private->xcursor = xcursor;
- cursor = (GdkCursor *) private;
- cursor->type = cursor_type;
- cursor->ref_count = 1;
+static guint theme_serial = 0;
+
+/* cursor_cache holds a cache of non-pixmap cursors to avoid expensive
+ * libXcursor searches, cursors are added to it but only removed when
+ * their display is closed. We make the assumption that since there are
+ * a small number of display's and a small number of cursor's that this
+ * list will stay small enough not to be a problem.
+ */
+static GSList* cursor_cache = NULL;
+
+struct cursor_cache_key
+{
+ GdkDisplay* display;
+ GdkCursorType type;
+ const char* name;
+};
+
+/* Caller should check if there is already a match first.
+ * Cursor MUST be either a typed cursor or a pixmap with
+ * a non-NULL name.
+ */
+static void
+add_to_cache (GdkX11Cursor* cursor)
+{
+ cursor_cache = g_slist_prepend (cursor_cache, cursor);
+
+ /* Take a ref so that if the caller frees it we still have it */
+ g_object_ref (cursor);
+}
+
+/* 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 */
- return cursor;
+ /* 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 */
}
-/**
- * gdk_cursor_new_from_pixmap:
- * @source: the pixmap specifying the cursor.
- * @mask: the pixmap specifying the mask, which must be the same size as
- * @source.
- * @fg: the foreground color, used for the bits in the source which are 1.
- * The color does not have to be allocated first.
- * @bg: the background color, used for the bits in the source which are 0.
- * The color does not have to be allocated first.
- * @x: the horizontal offset of the 'hotspot' of the cursor.
- * @y: the vertical offset of the 'hotspot' of the cursor.
- *
- * Creates a new cursor from a given pixmap and mask. Both the pixmap and mask
- * must have a depth of 1 (i.e. each pixel has only 2 values - on or off).
- * The standard cursor size is 16 by 16 pixels. You can create a bitmap
- * from inline data as in the below example.
- *
- * <example><title>Creating a custom cursor</title>
- * <programlisting>
- * /<!-- -->* This data is in X bitmap format, and can be created with the 'bitmap'
- * utility. *<!-- -->/
- * #define cursor1_width 16
- * #define cursor1_height 16
- * static unsigned char cursor1_bits[] = {
- * 0x80, 0x01, 0x40, 0x02, 0x20, 0x04, 0x10, 0x08, 0x08, 0x10, 0x04, 0x20,
- * 0x82, 0x41, 0x41, 0x82, 0x41, 0x82, 0x82, 0x41, 0x04, 0x20, 0x08, 0x10,
- * 0x10, 0x08, 0x20, 0x04, 0x40, 0x02, 0x80, 0x01};
- *
- * static unsigned char cursor1mask_bits[] = {
- * 0x80, 0x01, 0xc0, 0x03, 0x60, 0x06, 0x30, 0x0c, 0x18, 0x18, 0x8c, 0x31,
- * 0xc6, 0x63, 0x63, 0xc6, 0x63, 0xc6, 0xc6, 0x63, 0x8c, 0x31, 0x18, 0x18,
- * 0x30, 0x0c, 0x60, 0x06, 0xc0, 0x03, 0x80, 0x01};
- *
- *
- * GdkCursor *cursor;
- * GdkPixmap *source, *mask;
- * GdkColor fg = { 0, 65535, 0, 0 }; /<!-- -->* Red. *<!-- -->/
- * GdkColor bg = { 0, 0, 0, 65535 }; /<!-- -->* Blue. *<!-- -->/
- *
- *
- * source = gdk_bitmap_create_from_data (NULL, cursor1_bits,
- * cursor1_width, cursor1_height);
- * mask = gdk_bitmap_create_from_data (NULL, cursor1mask_bits,
- * cursor1_width, cursor1_height);
- * cursor = gdk_cursor_new_from_pixmap (source, mask, &fg, &bg, 8, 8);
- * gdk_pixmap_unref (source);
- * gdk_pixmap_unref (mask);
- *
- *
- * gdk_window_set_cursor (widget->window, cursor);
- * </programlisting>
- * </example>
- *
- * Return value: a new #GdkCursor.
- **/
-GdkCursor*
-gdk_cursor_new_from_pixmap (GdkPixmap *source,
- GdkPixmap *mask,
- GdkColor *fg,
- GdkColor *bg,
- gint x,
- gint y)
-{
- GdkCursorPrivate *private;
- GdkCursor *cursor;
- Pixmap source_pixmap, mask_pixmap;
- Cursor xcursor;
- XColor xfg, xbg;
+/* Returns the cursor if there is a match, NULL if not
+ * For named cursors type shall be GDK_CURSOR_IS_PIXMAP
+ * For unnamed, typed cursors, name shall be NULL
+ */
+static GdkX11Cursor*
+find_in_cache (GdkDisplay *display,
+ GdkCursorType type,
+ const char *name)
+{
+ GSList* res;
+ struct cursor_cache_key key;
+
+ key.display = display;
+ key.type = type;
+ key.name = name;
+
+ res = g_slist_find_custom (cursor_cache, &key, cache_compare_func);
+
+ if (res)
+ return (GdkX11Cursor *) res->data;
+
+ return NULL;
+}
+
+/* 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;
+ g_object_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);
+ }
+ }
+}
+
+/*** 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;
- g_return_val_if_fail (GDK_IS_PIXMAP (source), NULL);
- g_return_val_if_fail (GDK_IS_PIXMAP (mask), NULL);
- g_return_val_if_fail (fg != NULL, NULL);
- g_return_val_if_fail (bg != NULL, NULL);
+ display = gdk_cursor_get_display (GDK_CURSOR (object));
+ if (private->xcursor && !gdk_display_is_closed (display))
+ XFreeCursor (GDK_DISPLAY_XDISPLAY (display), private->xcursor);
- source_pixmap = GDK_PIXMAP_XID (source);
- mask_pixmap = GDK_PIXMAP_XID (mask);
- display = GDK_PIXMAP_DISPLAY (source);
-
- xfg.pixel = fg->pixel;
- xfg.red = fg->red;
- xfg.blue = fg->blue;
- xfg.green = fg->green;
- xbg.pixel = bg->pixel;
- xbg.red = bg->red;
- xbg.blue = bg->blue;
- xbg.green = bg->green;
-
- if (display->closed)
- xcursor = None;
+ 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;
+
+ cursor_class->get_image = gdk_x11_cursor_get_image;
+}
+
+static void
+gdk_x11_cursor_init (GdkX11Cursor *cursor)
+{
+}
+
+static Cursor
+get_blank_cursor (GdkDisplay *display)
+{
+ GdkScreen *screen;
+ Pixmap pixmap;
+ XColor color;
+ Cursor cursor;
+ cairo_surface_t *surface;
+ cairo_t *cr;
+
+ screen = gdk_display_get_default_screen (display);
+ surface = _gdk_x11_window_create_bitmap_surface (gdk_screen_get_root_window (screen), 1, 1);
+ /* Clear surface */
+ cr = cairo_create (surface);
+ cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
+ cairo_paint (cr);
+ cairo_destroy (cr);
+
+ pixmap = cairo_xlib_surface_get_drawable (surface);
+
+ color.pixel = 0;
+ color.red = color.blue = color.green = 0;
+
+ if (gdk_display_is_closed (display))
+ cursor = None;
else
- xcursor = XCreatePixmapCursor (GDK_DISPLAY_XDISPLAY (display),
- source_pixmap, mask_pixmap, &xfg, &xbg, x, y);
- private = g_new (GdkCursorPrivate, 1);
- private->display = display;
- private->xcursor = xcursor;
- cursor = (GdkCursor *) private;
- cursor->type = GDK_CURSOR_IS_PIXMAP;
- cursor->ref_count = 1;
-
+ cursor = XCreatePixmapCursor (GDK_DISPLAY_XDISPLAY (display),
+ pixmap, pixmap,
+ &color, &color, 1, 1);
+ cairo_surface_destroy (surface);
+
return cursor;
}
-void
-_gdk_cursor_destroy (GdkCursor *cursor)
+GdkCursor*
+_gdk_x11_display_get_cursor_for_type (GdkDisplay *display,
+ GdkCursorType cursor_type)
{
- GdkCursorPrivate *private;
+ GdkX11Cursor *private;
+ Cursor xcursor;
- g_return_if_fail (cursor != NULL);
- g_return_if_fail (cursor->ref_count == 0);
+ if (gdk_display_is_closed (display))
+ {
+ xcursor = None;
+ }
+ else
+ {
+ private = find_in_cache (display, cursor_type, NULL);
+
+ if (private)
+ {
+ /* Cache had it, add a ref for this user */
+ g_object_ref (private);
+
+ return (GdkCursor*) private;
+ }
+ else
+ {
+ if (cursor_type != GDK_BLANK_CURSOR)
+ xcursor = XCreateFontCursor (GDK_DISPLAY_XDISPLAY (display),
+ cursor_type);
+ else
+ xcursor = get_blank_cursor (display);
+ }
+ }
- private = (GdkCursorPrivate *) cursor;
- if (!private->display->closed && private->xcursor)
- XFreeCursor (GDK_DISPLAY_XDISPLAY (private->display), private->xcursor);
+ private = g_object_new (GDK_TYPE_X11_CURSOR,
+ "cursor-type", cursor_type,
+ "display", display,
+ NULL);
+ private->xcursor = xcursor;
+ private->name = NULL;
+ private->serial = theme_serial;
+
+ if (xcursor != None)
+ add_to_cache (private);
- g_free (private);
+ return GDK_CURSOR (private);
}
/**
* gdk_x11_cursor_get_xdisplay:
- * @cursor: a #GdkCursor.
+ * @cursor: (type GdkX11Cursor): a #GdkCursor.
*
* Returns the display of a #GdkCursor.
*
- * Return value: an Xlib <type>Display*</type>.
+ * Return value: (transfer none): an Xlib <type>Display*</type>.
**/
Display *
gdk_x11_cursor_get_xdisplay (GdkCursor *cursor)
{
g_return_val_if_fail (cursor != NULL, NULL);
- return GDK_DISPLAY_XDISPLAY(((GdkCursorPrivate *)cursor)->display);
+ return GDK_DISPLAY_XDISPLAY (gdk_cursor_get_display (cursor));
}
/**
* gdk_x11_cursor_get_xcursor:
- * @cursor: a #GdkCursor.
+ * @cursor: (type GdkX11Cursor): a #GdkCursor.
*
* Returns the X cursor belonging to a #GdkCursor.
*
{
g_return_val_if_fail (cursor != NULL, None);
- return ((GdkCursorPrivate *)cursor)->xcursor;
+ return ((GdkX11Cursor *)cursor)->xcursor;
+}
+
+#if defined(HAVE_XCURSOR) && defined(HAVE_XFIXES) && XFIXES_MAJOR >= 2
+
+static GdkPixbuf*
+gdk_x11_cursor_get_image (GdkCursor *cursor)
+{
+ Display *xdisplay;
+ GdkX11Cursor *private;
+ XcursorImages *images = NULL;
+ XcursorImage *image;
+ gint size;
+ gchar buf[32];
+ guchar *data, *p, tmp;
+ GdkPixbuf *pixbuf;
+ gchar *theme;
+
+ private = GDK_X11_CURSOR (cursor);
+
+ xdisplay = GDK_DISPLAY_XDISPLAY (gdk_cursor_get_display (cursor));
+
+ size = XcursorGetDefaultSize (xdisplay);
+ theme = XcursorGetTheme (xdisplay);
+
+ if (cursor->type == GDK_CURSOR_IS_PIXMAP)
+ {
+ if (private->name)
+ images = XcursorLibraryLoadImages (private->name, theme, size);
+ }
+ else
+ images = XcursorShapeLoadImages (cursor->type, theme, size);
+
+ if (!images)
+ return NULL;
+
+ image = images->images[0];
+
+ data = g_malloc (4 * image->width * image->height);
+ memcpy (data, image->pixels, 4 * image->width * image->height);
+
+ for (p = data; p < data + (4 * image->width * image->height); p += 4)
+ {
+ tmp = p[0];
+ p[0] = p[2];
+ p[2] = tmp;
+ }
+
+ pixbuf = gdk_pixbuf_new_from_data (data, GDK_COLORSPACE_RGB, TRUE,
+ 8, image->width, image->height,
+ 4 * image->width,
+ (GdkPixbufDestroyNotify)g_free, NULL);
+
+ if (private->name)
+ gdk_pixbuf_set_option (pixbuf, "name", private->name);
+ g_snprintf (buf, 32, "%d", image->xhot);
+ gdk_pixbuf_set_option (pixbuf, "x_hot", buf);
+ g_snprintf (buf, 32, "%d", image->yhot);
+ gdk_pixbuf_set_option (pixbuf, "y_hot", buf);
+
+ XcursorImagesDestroy (images);
+
+ return pixbuf;
+}
+
+void
+_gdk_x11_cursor_update_theme (GdkCursor *cursor)
+{
+ Display *xdisplay;
+ GdkX11Cursor *private;
+ Cursor new_cursor = None;
+ GdkX11Display *display_x11;
+
+ private = (GdkX11Cursor *) cursor;
+ display_x11 = GDK_X11_DISPLAY (gdk_cursor_get_display (cursor));
+ xdisplay = GDK_DISPLAY_XDISPLAY (display_x11);
+
+ if (!display_x11->have_xfixes)
+ return;
+
+ if (private->serial == theme_serial)
+ return;
+
+ private->serial = theme_serial;
+
+ if (private->xcursor != None)
+ {
+ if (cursor->type == GDK_BLANK_CURSOR)
+ return;
+
+ if (cursor->type == GDK_CURSOR_IS_PIXMAP)
+ {
+ if (private->name)
+ new_cursor = XcursorLibraryLoadCursor (xdisplay, private->name);
+ }
+ else
+ new_cursor = XcursorShapeLoadCursor (xdisplay, cursor->type);
+
+ if (new_cursor != None)
+ {
+ XFixesChangeCursor (xdisplay, new_cursor, private->xcursor);
+ private->xcursor = new_cursor;
+ }
+ }
+}
+
+static void
+update_cursor (gpointer data,
+ gpointer user_data)
+{
+ GdkCursor *cursor;
+
+ cursor = (GdkCursor*)(data);
+
+ if (!cursor)
+ return;
+
+ _gdk_x11_cursor_update_theme (cursor);
}
-/**
- * gdk_cursor_get_display:
- * @cursor : a #GdkCursor.
+/**
+ * gdk_x11_display_set_cursor_theme:
+ * @display: (type GdkX11Display): a #GdkDisplay
+ * @theme: the name of the cursor theme to use, or %NULL to unset
+ * a previously set value
+ * @size: the cursor size to use, or 0 to keep the previous size
+ *
+ * Sets the cursor theme from which the images for cursor
+ * should be taken.
*
- * Returns the display on which the GdkCursor is defined
+ * If the windowing system supports it, existing cursors created
+ * with gdk_cursor_new(), gdk_cursor_new_for_display() and
+ * gdk_cursor_new_for_name() are updated to reflect the theme
+ * change. Custom cursors constructed with
+ * gdk_cursor_new_from_pixbuf() will have to be handled
+ * by the application (GTK+ applications can learn about
+ * cursor theme changes by listening for change notification
+ * for the corresponding #GtkSetting).
*
- * Returns : the #GdkDisplay associated to @cursor
+ * Since: 2.8
*/
+void
+gdk_x11_display_set_cursor_theme (GdkDisplay *display,
+ const gchar *theme,
+ const gint size)
+{
+ Display *xdisplay;
+ gchar *old_theme;
+ gint old_size;
+
+ g_return_if_fail (GDK_IS_DISPLAY (display));
+
+ xdisplay = GDK_DISPLAY_XDISPLAY (display);
+
+ old_theme = XcursorGetTheme (xdisplay);
+ old_size = XcursorGetDefaultSize (xdisplay);
+
+ if (old_size == size &&
+ (old_theme == theme ||
+ (old_theme && theme && strcmp (old_theme, theme) == 0)))
+ return;
-GdkDisplay *
-gdk_cursor_get_display (GdkCursor *cursor)
+ theme_serial++;
+
+ XcursorSetTheme (xdisplay, theme);
+ if (size > 0)
+ XcursorSetDefaultSize (xdisplay, size);
+
+ g_slist_foreach (cursor_cache, update_cursor, NULL);
+}
+
+#else
+
+static GdkPixbuf*
+gdk_x11_cursor_get_image (GdkCursor *cursor)
{
- g_return_val_if_fail (cursor != NULL, NULL);
+ return NULL;
+}
+
+void
+gdk_x11_display_set_cursor_theme (GdkDisplay *display,
+ const gchar *theme,
+ const gint size)
+{
+ g_return_if_fail (GDK_IS_DISPLAY (display));
+}
+
+void
+_gdk_x11_cursor_update_theme (GdkCursor *cursor)
+{
+ g_return_if_fail (cursor != NULL);
+}
+
+#endif
+
+#ifdef HAVE_XCURSOR
+
+static XcursorImage*
+create_cursor_image (GdkPixbuf *pixbuf,
+ gint x,
+ gint y)
+{
+ guint width, height;
+ XcursorImage *xcimage;
+ cairo_surface_t *surface;
+ cairo_t *cr;
+
+ width = gdk_pixbuf_get_width (pixbuf);
+ height = gdk_pixbuf_get_height (pixbuf);
+
+ xcimage = XcursorImageCreate (width, height);
+
+ xcimage->xhot = x;
+ xcimage->yhot = y;
+
+ surface = cairo_image_surface_create_for_data ((guchar *) xcimage->pixels,
+ CAIRO_FORMAT_ARGB32,
+ width,
+ height,
+ width * 4);
+
+ cr = cairo_create (surface);
+ cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
+ gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
+ cairo_paint (cr);
+ cairo_destroy (cr);
+
+ cairo_surface_destroy (surface);
+
+ return xcimage;
+}
+
+GdkCursor *
+_gdk_x11_display_get_cursor_for_pixbuf (GdkDisplay *display,
+ GdkPixbuf *pixbuf,
+ gint x,
+ gint y)
+{
+ XcursorImage *xcimage;
+ Cursor xcursor;
+ GdkX11Cursor *private;
+ const char *option;
+ char *end;
+ gint64 value;
+
+ if (x == -1 && (option = gdk_pixbuf_get_option (pixbuf, "x_hot")))
+ {
+ errno = 0;
+ end = NULL;
+ value = g_ascii_strtoll (option, &end, 10);
+ if (errno == 0 &&
+ end != option &&
+ value >= 0 && value < G_MAXINT)
+ x = (gint) value;
+ }
+ if (y == -1 && (option = gdk_pixbuf_get_option (pixbuf, "y_hot")))
+ {
+ errno = 0;
+ end = NULL;
+ value = g_ascii_strtoll (option, &end, 10);
+ if (errno == 0 &&
+ end != option &&
+ value >= 0 && value < G_MAXINT)
+ y = (gint) value;
+ }
+
+ g_return_val_if_fail (0 <= x && x < gdk_pixbuf_get_width (pixbuf), NULL);
+ g_return_val_if_fail (0 <= y && y < gdk_pixbuf_get_height (pixbuf), NULL);
+
+ if (gdk_display_is_closed (display))
+ {
+ xcursor = None;
+ }
+ else
+ {
+ xcimage = create_cursor_image (pixbuf, x, y);
+ xcursor = XcursorImageLoadCursor (GDK_DISPLAY_XDISPLAY (display), xcimage);
+ XcursorImageDestroy (xcimage);
+ }
+
+ private = g_object_new (GDK_TYPE_X11_CURSOR,
+ "cursor-type", GDK_CURSOR_IS_PIXMAP,
+ "display", display,
+ NULL);
+ private->xcursor = xcursor;
+ private->name = NULL;
+ private->serial = theme_serial;
+
+ return GDK_CURSOR (private);
+}
+
+GdkCursor*
+_gdk_x11_display_get_cursor_for_name (GdkDisplay *display,
+ const gchar *name)
+{
+ Cursor xcursor;
+ Display *xdisplay;
+ GdkX11Cursor *private;
+
+ if (gdk_display_is_closed (display))
+ {
+ xcursor = None;
+ }
+ else
+ {
+ private = find_in_cache (display, GDK_CURSOR_IS_PIXMAP, name);
+
+ if (private)
+ {
+ /* Cache had it, add a ref for this user */
+ g_object_ref (private);
+
+ return (GdkCursor*) private;
+ }
+
+ xdisplay = GDK_DISPLAY_XDISPLAY (display);
+ xcursor = XcursorLibraryLoadCursor (xdisplay, name);
+ if (xcursor == None)
+ return NULL;
+ }
+
+ private = g_object_new (GDK_TYPE_X11_CURSOR,
+ "cursor-type", GDK_CURSOR_IS_PIXMAP,
+ "display", display,
+ NULL);
+ private->xcursor = xcursor;
+ private->name = g_strdup (name);
+ private->serial = theme_serial;
+
+ add_to_cache (private);
+
+ return GDK_CURSOR (private);
+}
+
+gboolean
+_gdk_x11_display_supports_cursor_alpha (GdkDisplay *display)
+{
+ return XcursorSupportsARGB (GDK_DISPLAY_XDISPLAY (display));
+}
+
+gboolean
+_gdk_x11_display_supports_cursor_color (GdkDisplay *display)
+{
+ return XcursorSupportsARGB (GDK_DISPLAY_XDISPLAY (display));
+}
+
+void
+_gdk_x11_display_get_default_cursor_size (GdkDisplay *display,
+ guint *width,
+ guint *height)
+{
+ *width = *height = XcursorGetDefaultSize (GDK_DISPLAY_XDISPLAY (display));
+}
+
+#else
+
+static GdkCursor*
+gdk_cursor_new_from_pixmap (GdkDisplay *display,
+ Pixmap source_pixmap,
+ Pixmap mask_pixmap,
+ const GdkRGBA *fg,
+ const GdkRGBA *bg,
+ gint x,
+ gint y)
+{
+ GdkX11Cursor *private;
+ Cursor xcursor;
+ XColor xfg, xbg;
+
+ g_return_val_if_fail (fg != NULL, NULL);
+ g_return_val_if_fail (bg != NULL, NULL);
+
+ xfg.red = fg->red * 65535;
+ xfg.blue = fg->blue * 65535;
+ xfg.green = fg->green * 65535;
+
+ xbg.red = bg->red * 65535;
+ xbg.blue = bg->blue * 65535;
+ xbg.green = bg->green * 65535;
+
+ if (gdk_display_is_closed (display))
+ xcursor = None;
+ else
+ xcursor = XCreatePixmapCursor (GDK_DISPLAY_XDISPLAY (display),
+ source_pixmap, mask_pixmap, &xfg, &xbg, x, y);
+ private = g_object_new (GDK_TYPE_X11_CURSOR,
+ "cursor-type", GDK_CURSOR_IS_PIXMAP,
+ "display", display,
+ NULL);
+ private->xcursor = xcursor;
+ private->name = NULL;
+ private->serial = theme_serial;
+
+ return GDK_CURSOR (private);
+}
+
+GdkCursor *
+_gdk_x11_display_get_cursor_for_pixbuf (GdkDisplay *display,
+ GdkPixbuf *pixbuf,
+ gint x,
+ gint y)
+{
+ GdkCursor *cursor;
+ cairo_surface_t *pixmap, *mask;
+ guint width, height, n_channels, rowstride, data_stride, i, j;
+ guint8 *data, *mask_data, *pixels;
+ GdkRGBA fg = { 0, 0, 0, 1 };
+ GdkRGBA bg = { 1, 1, 1, 1 };
+ GdkScreen *screen;
+ cairo_surface_t *image;
+ cairo_t *cr;
+
+ width = gdk_pixbuf_get_width (pixbuf);
+ height = gdk_pixbuf_get_height (pixbuf);
+
+ g_return_val_if_fail (0 <= x && x < width, NULL);
+ g_return_val_if_fail (0 <= y && y < height, NULL);
+
+ n_channels = gdk_pixbuf_get_n_channels (pixbuf);
+ rowstride = gdk_pixbuf_get_rowstride (pixbuf);
+ pixels = gdk_pixbuf_get_pixels (pixbuf);
+
+ data_stride = 4 * ((width + 31) / 32);
+ data = g_new0 (guint8, data_stride * height);
+ mask_data = g_new0 (guint8, data_stride * height);
+
+ for (j = 0; j < height; j++)
+ {
+ guint8 *src = pixels + j * rowstride;
+ guint8 *d = data + data_stride * j;
+ guint8 *md = mask_data + data_stride * j;
+
+ for (i = 0; i < width; i++)
+ {
+ if (src[1] < 0x80)
+ *d |= 1 << (i % 8);
+
+ if (n_channels == 3 || src[3] >= 0x80)
+ *md |= 1 << (i % 8);
+
+ src += n_channels;
+ if (i % 8 == 7)
+ {
+ d++;
+ md++;
+ }
+ }
+ }
+
+ screen = gdk_display_get_default_screen (display);
+
+ pixmap = _gdk_x11_window_create_bitmap_surface (gdk_screen_get_root_window (screen),
+ width, height);
+ cr = cairo_create (pixmap);
+ image = cairo_image_surface_create_for_data (data, CAIRO_FORMAT_A1,
+ width, height, data_stride);
+ cairo_set_source_surface (cr, image, 0, 0);
+ cairo_surface_destroy (image);
+ cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
+ cairo_paint (cr);
+ cairo_destroy (cr);
+
+ mask = _gdk_x11_window_create_bitmap_surface (gdk_screen_get_root_window (screen),
+ width, height);
+ cr = cairo_create (mask);
+ image = cairo_image_surface_create_for_data (mask_data, CAIRO_FORMAT_A1,
+ width, height, data_stride);
+ cairo_set_source_surface (cr, image, 0, 0);
+ cairo_surface_destroy (image);
+ cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
+ cairo_paint (cr);
+ cairo_destroy (cr);
+
+ cursor = gdk_cursor_new_from_pixmap (display,
+ cairo_xlib_surface_get_drawable (pixmap),
+ cairo_xlib_surface_get_drawable (mask),
+ &fg, &bg,
+ x, y);
+
+ cairo_surface_destroy (pixmap);
+ cairo_surface_destroy (mask);
+
+ g_free (data);
+ g_free (mask_data);
+
+ return cursor;
+}
+
+GdkCursor*
+_gdk_x11_display_get_cursor_for_name (GdkDisplay *display,
+ const gchar *name)
+{
+ return NULL;
+}
+
+gboolean
+_gdk_x11_display_supports_cursor_alpha (GdkDisplay *display)
+{
+ return FALSE;
+}
+
+gboolean
+_gdk_x11_display_supports_cursor_color (GdkDisplay *display)
+{
+ return FALSE;
+}
+
+void
+_gdk_x11_display_get_default_cursor_size (GdkDisplay *display,
+ guint *width,
+ guint *height)
+{
+ /* no idea, really */
+ *width = *height = 20;
+ return;
+}
+
+#endif
+
+void
+_gdk_x11_display_get_maximal_cursor_size (GdkDisplay *display,
+ guint *width,
+ guint *height)
+{
+ GdkScreen *screen;
+ GdkWindow *window;
+
+ g_return_if_fail (GDK_IS_DISPLAY (display));
- return ((GdkCursorPrivate *)cursor)->display;
+ screen = gdk_display_get_default_screen (display);
+ window = gdk_screen_get_root_window (screen);
+ XQueryBestCursor (GDK_DISPLAY_XDISPLAY (display),
+ GDK_WINDOW_XID (window),
+ 128, 128, width, height);
}
projects / ~andy / gtk / blobdiff