third_party/WebKit/Source/platform/graphics/paint/SkPictureBuilder.cpp

// Copyright 2015 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 "platform/graphics/paint/SkPictureBuilder.h"

#include "platform/geometry/FloatRect.h"
#include "platform/graphics/GraphicsContext.h"
#include "platform/graphics/paint/PaintController.h"
#include "wtf/PtrUtil.h"

namespace blink {

SkPictureBuilder::SkPictureBuilder(const FloatRect& bounds,
                                   SkMetaData* metaData,
                                   GraphicsContext* containingContext,
                                   PaintController* paintController)
    : m_paintController(nullptr), m_bounds(bounds) {
  GraphicsContext::DisabledMode disabledMode = GraphicsContext::NothingDisabled;
  if (containingContext && containingContext->contextDisabled())
    disabledMode = GraphicsContext::FullyDisabled;

  if (paintController) {
    m_paintController = paintController;
  } else {
    m_paintControllerPtr = PaintController::create();
    m_paintController = m_paintControllerPtr.get();
  }
#if DCHECK_IS_ON()
  m_paintController->setUsage(PaintController::ForSkPictureBuilder);
#endif

  m_context = WTF::wrapUnique(
      new GraphicsContext(*m_paintController, disabledMode, metaData));

  if (containingContext) {
    m_context->setDeviceScaleFactor(containingContext->deviceScaleFactor());
    m_context->setPrinting(containingContext->printing());
  }
}

SkPictureBuilder::~SkPictureBuilder() {
#if DCHECK_IS_ON()
  m_paintController->setUsage(PaintController::ForNormalUsage);
#endif
}

sk_sp<SkPicture> SkPictureBuilder::endRecording() {
  m_context->beginRecording(m_bounds);
  m_paintController->commitNewDisplayItems();
  m_paintController->paintArtifact().replay(*m_context);
  return m_context->endRecording();
}

}  // namespace blink