- static char stipple_data[] =
- {
- 0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA,
- 0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA,
- 0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA,
- 0x55, 0x55, 0xAA, 0xAA, 0x55, 0x55, 0xAA, 0xAA
- };
- GC gc;
- Pixmap ipixmap, stipple;
- unsigned width, height, depth;
-
- Window window; /* These return values */
- unsigned border; /* from XGetGeometry() */
- int x, y; /* are not needed. */
-
- ipixmap = 0;
-
- if ( NULL == display || 0 == pixmap )
- return ipixmap;
-
- if ( 0 == XGetGeometry( display, pixmap, &window, &x, &y,
- &width, &height, &border, &depth )
- )
- return ipixmap; /* BadDrawable: probably an invalid pixmap */
-
- /* Get the stipple pixmap to be used to 'gray-out' the argument pixmap.
- */
- stipple = XCreateBitmapFromData( display, pixmap, stipple_data, 16, 16 );
- if ( 0 != stipple )
- {
- gc = XCreateGC( display, pixmap, (XtGCMask)0, (XGCValues*)NULL );
- if ( NULL != gc )
- {
- /* Create an identical copy of the argument pixmap.
- */
- ipixmap = XCreatePixmap( display, pixmap, width, height, depth );
- if ( 0 != ipixmap )
- {
- /* Copy the argument pixmap into the new pixmap.
- */
- XCopyArea( display, pixmap, ipixmap,
- gc, 0, 0, width, height, 0, 0 );
-
- /* Refill the new pixmap using the stipple algorithm/pixmap.
- */
- XSetStipple( display, gc, stipple );
- XSetFillStyle( display, gc, FillStippled );
- XFillRectangle( display, ipixmap, gc, 0, 0, width, height );
- }
- XFreeGC( display, gc );
- }
- XFreePixmap( display, stipple );
- }
- return ipixmap;