ExcCode screen_cursor_blend(int x, int y, Imlib_Image image) {
xcb_xfixes_get_cursor_image_cookie_t cookie =
xcb_xfixes_get_cursor_image(display);
xcb_xfixes_get_cursor_image_reply_t *reply =
xcb_xfixes_get_cursor_image_reply(display, cookie, NULL);
if (reply == NULL)
return 0;
unsigned *cursor_data = xcb_xfixes_get_cursor_image_cursor_image(reply);
if (cursor_data == NULL)
return 0;
Imlib_Image cursor = imlib_create_image_using_data(
reply->width, reply->height,
cursor_data);
if (cursor == NULL)
PANIC(ERR_IMAGE);
imlib_context_set_image(cursor);
imlib_image_set_has_alpha(1);
imlib_context_set_image(image);
imlib_blend_image_onto_image(cursor, 0, 0, 0, reply->width, reply->height,
reply->x - reply->xhot - x, reply->y - reply->yhot - y,
reply->width, reply->height);
imlib_context_set_image(cursor);
imlib_free_image_and_decache();
free(reply);
return 0;
}
void
UpdateCursor(void)
{
xcb_xfixes_get_cursor_image_cookie_t cookie = xcb_xfixes_get_cursor_image(xcwm_context_get_connection(context));
xcb_xfixes_get_cursor_image_reply_t* reply = xcb_xfixes_get_cursor_image_reply(xcwm_context_get_connection(context), cookie, NULL);
// DEBUG("Got cursor image, serial %d\n", reply->cursor_serial);
WMUTIL_CURSOR cursor;
memset(&cursor, 0, sizeof(cursor));
cursor.width = reply->width;
cursor.height = reply->height;
cursor.xhot = reply->xhot;
cursor.yhot = reply->yhot;
cursor.argb = xcb_xfixes_get_cursor_image_cursor_image(reply);
hCursor = winXCursorToHCURSOR(&cursor);
// XXX: We should only change the cursor if the cursor is within one of our windows...
// it's hard to notice this as a problem, as windows don't normally try to change the cursor except in response to something being clicked...
HCURSOR hPreviousCursor = SetCursor(hCursor);
// DEBUG("cursor 0x%08x, previous cursor 0x%08x\n", hCursor, hPreviousCursor);
DestroyCursor(hPreviousCursor);
free(reply);
}
/*
* Create the cursor texture, either by updating if the new cursor has the same
* size or by creating a new texture if the size is different
*/
static void xcb_xcursor_create(xcb_xcursor_t *data,
xcb_xfixes_get_cursor_image_reply_t *xc)
{
uint32_t *pixels = xcb_xfixes_get_cursor_image_cursor_image(xc);
if (!pixels)
return;
if (data->tex && data->last_height == xc->width &&
data->last_width == xc->height) {
gs_texture_set_image(data->tex, (const uint8_t *) pixels,
xc->width * sizeof(uint32_t), false);
} else {
if (data->tex)
gs_texture_destroy(data->tex);
data->tex = gs_texture_create(xc->width, xc->height,
GS_BGRA, 1, (const uint8_t **) &pixels, GS_DYNAMIC);
}
data->last_serial = xc->cursor_serial;
data->last_width = xc->width;
data->last_height = xc->height;
}
