+
+VFrame *ResourcePixmap::change_title_color(VFrame *title_bg, int color, int bg_color)
+{
+ if( color < 0 || color == bg_color ) return title_bg;
+ int colormodel = title_bg->get_color_model();
+ int bpp = BC_CModels::calculate_pixelsize(colormodel);
+ int tw = title_bg->get_w(), th = title_bg->get_h();
+ VFrame *title_bar = new VFrame(tw, th, colormodel);
+ uint8_t br = (bg_color>>16), cr = (color>>16);
+ uint8_t bg = (bg_color>>8), cg = (color>>8);
+ uint8_t bb = (bg_color>>0), cb = (color>>0);
+ int dr = cr-br, dg = cg-bg, db = cb-bb;
+ uint8_t **bar_rows = title_bar->get_rows();
+ uint8_t **rows = title_bg->get_rows();
+ for( int y=0; y<th; ++y ) {
+ uint8_t *bp = rows[y], *cp = bar_rows[y];
+ for( int x=0; x<tw; ++x ) {
+ *cp++ = *bp++ + dr;
+ *cp++ = *bp++ + dg;
+ *cp++ = *bp++ + db;
+ if( bpp > 3 ) *cp++ = *bp++;
+ }
+ }
+ return title_bar;
+}
+