summaryrefslogtreecommitdiff
path: root/core/fpdfapi/render/cpdf_progressiverenderer.cpp
diff options
context:
space:
mode:
authorNicolas Pena <npm@chromium.org>2016-11-30 14:56:27 -0500
committerChromium commit bot <commit-bot@chromium.org>2016-12-01 19:02:46 +0000
commit8a463c5a1a2252b5fdbff3b5ab07d50273bbc391 (patch)
treed9c43fcedbbc5b6412eca598b73724a696f41b22 /core/fpdfapi/render/cpdf_progressiverenderer.cpp
parent560680ce6d556a720e30bb6229fcb0751a37283e (diff)
downloadpdfium-8a463c5a1a2252b5fdbff3b5ab07d50273bbc391.tar.xz
Remove fpdf_render.cpp
Split the remaining code into files per class. Change-Id: Idb959dbf807223a509e16c76f9626e61856a886b Reviewed-on: https://pdfium-review.googlesource.com/2094 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
Diffstat (limited to 'core/fpdfapi/render/cpdf_progressiverenderer.cpp')
-rw-r--r--core/fpdfapi/render/cpdf_progressiverenderer.cpp113
1 files changed, 113 insertions, 0 deletions
diff --git a/core/fpdfapi/render/cpdf_progressiverenderer.cpp b/core/fpdfapi/render/cpdf_progressiverenderer.cpp
new file mode 100644
index 0000000000..46d78b6c4e
--- /dev/null
+++ b/core/fpdfapi/render/cpdf_progressiverenderer.cpp
@@ -0,0 +1,113 @@
+// Copyright 2016 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "core/fpdfapi/render/cpdf_progressiverenderer.h"
+
+#include "core/fpdfapi/page/cpdf_pageobject.h"
+#include "core/fpdfapi/page/cpdf_pageobjectholder.h"
+#include "core/fpdfapi/render/cpdf_pagerendercache.h"
+#include "core/fpdfapi/render/cpdf_renderoptions.h"
+#include "core/fpdfapi/render/cpdf_renderstatus.h"
+#include "core/fxge/cfx_renderdevice.h"
+
+CPDF_ProgressiveRenderer::CPDF_ProgressiveRenderer(
+ CPDF_RenderContext* pContext,
+ CFX_RenderDevice* pDevice,
+ const CPDF_RenderOptions* pOptions)
+ : m_Status(Ready),
+ m_pContext(pContext),
+ m_pDevice(pDevice),
+ m_pOptions(pOptions),
+ m_LayerIndex(0),
+ m_pCurrentLayer(nullptr) {}
+
+CPDF_ProgressiveRenderer::~CPDF_ProgressiveRenderer() {
+ if (m_pRenderStatus)
+ m_pDevice->RestoreState(false);
+}
+
+void CPDF_ProgressiveRenderer::Start(IFX_Pause* pPause) {
+ if (!m_pContext || !m_pDevice || m_Status != Ready) {
+ m_Status = Failed;
+ return;
+ }
+ m_Status = ToBeContinued;
+ Continue(pPause);
+}
+
+void CPDF_ProgressiveRenderer::Continue(IFX_Pause* pPause) {
+ while (m_Status == ToBeContinued) {
+ if (!m_pCurrentLayer) {
+ if (m_LayerIndex >= m_pContext->CountLayers()) {
+ m_Status = Done;
+ return;
+ }
+ m_pCurrentLayer = m_pContext->GetLayer(m_LayerIndex);
+ m_LastObjectRendered =
+ m_pCurrentLayer->m_pObjectHolder->GetPageObjectList()->end();
+ m_pRenderStatus.reset(new CPDF_RenderStatus());
+ m_pRenderStatus->Initialize(
+ m_pContext, m_pDevice, nullptr, nullptr, nullptr, nullptr, m_pOptions,
+ m_pCurrentLayer->m_pObjectHolder->m_Transparency, false, nullptr);
+ m_pDevice->SaveState();
+ m_ClipRect = CFX_FloatRect(m_pDevice->GetClipBox());
+ CFX_Matrix device2object;
+ device2object.SetReverse(m_pCurrentLayer->m_Matrix);
+ device2object.TransformRect(m_ClipRect);
+ }
+ CPDF_PageObjectList::iterator iter;
+ CPDF_PageObjectList::iterator iterEnd =
+ m_pCurrentLayer->m_pObjectHolder->GetPageObjectList()->end();
+ if (m_LastObjectRendered != iterEnd) {
+ iter = m_LastObjectRendered;
+ ++iter;
+ } else {
+ iter = m_pCurrentLayer->m_pObjectHolder->GetPageObjectList()->begin();
+ }
+ int nObjsToGo = kStepLimit;
+ while (iter != iterEnd) {
+ CPDF_PageObject* pCurObj = iter->get();
+ if (pCurObj && pCurObj->m_Left <= m_ClipRect.right &&
+ pCurObj->m_Right >= m_ClipRect.left &&
+ pCurObj->m_Bottom <= m_ClipRect.top &&
+ pCurObj->m_Top >= m_ClipRect.bottom) {
+ if (m_pRenderStatus->ContinueSingleObject(
+ pCurObj, &m_pCurrentLayer->m_Matrix, pPause)) {
+ return;
+ }
+ if (pCurObj->IsImage() &&
+ m_pRenderStatus->m_Options.m_Flags & RENDER_LIMITEDIMAGECACHE) {
+ m_pContext->GetPageCache()->CacheOptimization(
+ m_pRenderStatus->m_Options.m_dwLimitCacheSize);
+ }
+ if (pCurObj->IsForm() || pCurObj->IsShading())
+ nObjsToGo = 0;
+ else
+ --nObjsToGo;
+ }
+ m_LastObjectRendered = iter;
+ if (nObjsToGo == 0) {
+ if (pPause && pPause->NeedToPauseNow())
+ return;
+ nObjsToGo = kStepLimit;
+ }
+ ++iter;
+ }
+ if (m_pCurrentLayer->m_pObjectHolder->IsParsed()) {
+ m_pRenderStatus.reset();
+ m_pDevice->RestoreState(false);
+ m_pCurrentLayer = nullptr;
+ m_LayerIndex++;
+ if (pPause && pPause->NeedToPauseNow()) {
+ return;
+ }
+ } else {
+ m_pCurrentLayer->m_pObjectHolder->ContinueParse(pPause);
+ if (!m_pCurrentLayer->m_pObjectHolder->IsParsed())
+ return;
+ }
+ }
+}