| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "cc/trees/clip_expander.h" |
| #include "cc/trees/effect_node.h" |
| #include "cc/trees/property_tree.h" |
| #include "ui/gfx/transform.h" |
| |
| namespace cc { |
| |
| ClipExpander::ClipExpander(int filter_effect_id) |
| : target_effect_id_(filter_effect_id) {} |
| |
| ClipExpander::ClipExpander(const ClipExpander& other) = default; |
| |
| bool ClipExpander::operator==(const ClipExpander& other) const { |
| return target_effect_id_ == other.target_effect_id_; |
| } |
| |
| gfx::Rect ClipExpander::MapRect(const gfx::Rect& rect, |
| const PropertyTrees* property_trees) const { |
| const EffectNode* effect_node = |
| property_trees->effect_tree.Node(target_effect_id_); |
| gfx::Transform filter_draw_transform; |
| filter_draw_transform.Scale(effect_node->surface_contents_scale.x(), |
| effect_node->surface_contents_scale.y()); |
| return effect_node->filters.MapRect(rect, filter_draw_transform.matrix()); |
| } |
| |
| gfx::Rect ClipExpander::MapRectReverse( |
| const gfx::Rect& rect, |
| const PropertyTrees* property_trees) const { |
| const EffectNode* effect_node = |
| property_trees->effect_tree.Node(target_effect_id_); |
| gfx::Transform filter_draw_transform; |
| filter_draw_transform.Scale(effect_node->surface_contents_scale.x(), |
| effect_node->surface_contents_scale.y()); |
| return effect_node->filters.MapRectReverse(rect, |
| filter_draw_transform.matrix()); |
| } |
| |
| } // namespace cc |