cc/render_surface.cc

   1 // Copyright 2010 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 "cc/render_surface.h"
   6
   7 #include "cc/layer.h"
   8 #include "cc/math_util.h"
   9 #include "ui/gfx/transform.h"
  10
  11 namespace cc {
  12
  13 RenderSurface::RenderSurface(Layer* owningLayer)
  14     : m_owningLayer(owningLayer)
  15     , m_drawOpacity(1)
  16     , m_drawOpacityIsAnimating(false)
  17     , m_targetSurfaceTransformsAreAnimating(false)
  18     , m_screenSpaceTransformsAreAnimating(false)
  19     , m_isClipped(false)
  20     , m_nearestAncestorThatMovesPixels(0)
  21 {
  22 }
  23
  24 RenderSurface::~RenderSurface()
  25 {
  26 }
  27
  28 gfx::RectF RenderSurface::drawableContentRect() const
  29 {
  30     gfx::RectF drawableContentRect = MathUtil::mapClippedRect(m_drawTransform, m_contentRect);
  31     if (m_owningLayer->hasReplica())
  32         drawableContentRect.Union(MathUtil::mapClippedRect(m_replicaDrawTransform, m_contentRect));
  33     return drawableContentRect;
  34 }
  35
  36 }  // namespace cc