1 // Copyright 2014 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.
5 #ifndef CC_TREES_OCCLUSION_H_
6 #define CC_TREES_OCCLUSION_H_
8 #include "base/basictypes.h"
9 #include "cc/base/cc_export.h"
10 #include "cc/base/simple_enclosed_region.h"
11 #include "ui/gfx/geometry/rect.h"
12 #include "ui/gfx/transform.h"
16 class CC_EXPORT Occlusion {
19 Occlusion(const gfx::Transform& draw_transform,
20 const SimpleEnclosedRegion& occlusion_from_outside_target,
21 const SimpleEnclosedRegion& occlusion_from_inside_target);
22 Occlusion GetOcclusionWithGivenDrawTransform(
23 const gfx::Transform& transform) const;
25 bool HasOcclusion() const;
26 bool IsOccluded(const gfx::Rect& content_rect) const;
27 gfx::Rect GetUnoccludedContentRect(const gfx::Rect& content_rect) const;
30 gfx::Rect GetUnoccludedRectInTargetSurface(
31 const gfx::Rect& content_rect) const;
33 gfx::Transform draw_transform_;
34 SimpleEnclosedRegion occlusion_from_outside_target_;
35 SimpleEnclosedRegion occlusion_from_inside_target_;
40 #endif // CC_TREES_OCCLUSION_H_