ui/gfx/path_x11.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ui/gfx/path_x11.h"
   6
   7 #include <X11/Xlib.h>
   8 #include <X11/Xregion.h>
   9 #include <X11/Xutil.h>
  10
  11 #include "base/memory/scoped_ptr.h"
  12 #include "third_party/skia/include/core/SkRegion.h"
  13 #include "ui/gfx/path.h"
  14
  15 namespace gfx {
  16
  17 Region CreateRegionFromSkRegion(const SkRegion& region) {
  18   Region result = XCreateRegion();
  19
  20   for (SkRegion::Iterator i(region); !i.done(); i.next()) {
  21     XRectangle rect;
  22     rect.x = i.rect().x();
  23     rect.y = i.rect().y();
  24     rect.width = i.rect().width();
  25     rect.height = i.rect().height();
  26     XUnionRectWithRegion(&rect, result, result);
  27   }
  28
  29   return result;
  30 }
  31
  32 Region CreateRegionFromSkPath(const SkPath& path) {
  33   int point_count = path.getPoints(NULL, 0);
  34   scoped_ptr<SkPoint[]> points(new SkPoint[point_count]);
  35   path.getPoints(points.get(), point_count);
  36   scoped_ptr<XPoint[]> x11_points(new XPoint[point_count]);
  37   for (int i = 0; i < point_count; ++i) {
  38     x11_points[i].x = SkScalarRoundToInt(points[i].fX);
  39     x11_points[i].y = SkScalarRoundToInt(points[i].fY);
  40   }
  41
  42   return XPolygonRegion(x11_points.get(), point_count, EvenOddRule);
  43 }
  44
  45 }  // namespace gfx