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// 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
#ifndef CORE_FPDFAPI_RENDER_CPDF_RENDERSTATUS_H_
#define CORE_FPDFAPI_RENDER_CPDF_RENDERSTATUS_H_
#include <memory>
#include <vector>
#include "core/fpdfapi/page/cpdf_clippath.h"
#include "core/fpdfapi/page/cpdf_graphicstates.h"
#include "core/fpdfapi/page/cpdf_pageobjectholder.h"
#include "core/fpdfapi/render/cpdf_renderoptions.h"
#include "core/fxcrt/unowned_ptr.h"
#include "core/fxge/cfx_renderdevice.h"
class CFX_PathData;
class CPDF_Color;
class CPDF_Dictionary;
class CPDF_Font;
class CPDF_FormObject;
class CPDF_ImageCacheEntry;
class CPDF_ImageObject;
class CPDF_ImageRenderer;
class CPDF_Object;
class CPDF_PageObject;
class CPDF_PageObjectHolder;
class CPDF_PathObject;
class CPDF_RenderContext;
class CPDF_ShadingObject;
class CPDF_ShadingPattern;
class CPDF_TilingPattern;
class CPDF_TransferFunc;
class CPDF_Type3Cache;
class CPDF_Type3Char;
class CPDF_Type3Font;
class CPDF_RenderStatus {
public:
CPDF_RenderStatus(CPDF_RenderContext* pContext, CFX_RenderDevice* pDevice);
~CPDF_RenderStatus();
// Called prior to Initialize().
void SetOptions(const CPDF_RenderOptions& options) { m_Options = options; }
void SetDeviceMatrix(const CFX_Matrix& matrix) { m_DeviceMatrix = matrix; }
void SetStopObject(const CPDF_PageObject* pStopObj) { m_pStopObj = pStopObj; }
void SetFormResource(const CPDF_Dictionary* pRes) { m_pFormResource = pRes; }
void SetType3Char(CPDF_Type3Char* pType3Char) { m_pType3Char = pType3Char; }
void SetFillColor(FX_ARGB color) { m_T3FillColor = color; }
void SetDropObjects(bool bDropObjects) { m_bDropObjects = bDropObjects; }
void SetLoadMask(bool bLoadMask) { m_bLoadMask = bLoadMask; }
void SetStdCS(bool bStdCS) { m_bStdCS = bStdCS; }
void SetGroupFamily(uint32_t family) { m_GroupFamily = family; }
void SetTransparency(const CPDF_Transparency& transparency) {
m_Transparency = transparency;
}
void Initialize(const CPDF_RenderStatus* pParentStatus,
const CPDF_GraphicStates* pInitialStates);
void RenderObjectList(const CPDF_PageObjectHolder* pObjectHolder,
const CFX_Matrix* pObj2Device);
void RenderSingleObject(CPDF_PageObject* pObj, const CFX_Matrix* pObj2Device);
bool ContinueSingleObject(CPDF_PageObject* pObj,
const CFX_Matrix* pObj2Device,
PauseIndicatorIface* pPause);
void ProcessClipPath(const CPDF_ClipPath& ClipPath,
const CFX_Matrix* pObj2Device);
uint32_t GetGroupFamily() const { return m_GroupFamily; }
bool GetLoadMask() const { return m_bLoadMask; }
bool GetDropObjects() const { return m_bDropObjects; }
bool IsPrint() const { return m_bPrint; }
bool IsStopped() const { return m_bStopped; }
CPDF_RenderContext* GetContext() const { return m_pContext.Get(); }
const CPDF_Dictionary* GetFormResource() const {
return m_pFormResource.Get();
}
CPDF_Dictionary* GetPageResource() const { return m_pPageResource.Get(); }
CFX_RenderDevice* GetRenderDevice() const { return m_pDevice; }
const CPDF_RenderOptions& GetRenderOptions() const { return m_Options; }
#if defined _SKIA_SUPPORT_
void DebugVerifyDeviceIsPreMultiplied() const;
#endif
RetainPtr<CPDF_TransferFunc> GetTransferFunc(
const CPDF_Object* pObject) const;
FX_ARGB GetFillArgb(CPDF_PageObject* pObj, bool bType3 = false) const;
void DrawTilingPattern(CPDF_TilingPattern* pPattern,
CPDF_PageObject* pPageObj,
const CFX_Matrix* pObj2Device,
bool bStroke);
void DrawShadingPattern(CPDF_ShadingPattern* pPattern,
const CPDF_PageObject* pPageObj,
const CFX_Matrix* pObj2Device,
bool bStroke);
void CompositeDIBitmap(const RetainPtr<CFX_DIBitmap>& pDIBitmap,
int left,
int top,
FX_ARGB mask_argb,
int bitmap_alpha,
int blend_mode,
const CPDF_Transparency& transparency);
private:
bool ProcessTransparency(CPDF_PageObject* PageObj,
const CFX_Matrix* pObj2Device);
void ProcessObjectNoClip(CPDF_PageObject* PageObj,
const CFX_Matrix* pObj2Device);
void DrawObjWithBackground(CPDF_PageObject* pObj,
const CFX_Matrix* pObj2Device);
bool DrawObjWithBlend(CPDF_PageObject* pObj, const CFX_Matrix* pObj2Device);
bool ProcessPath(CPDF_PathObject* pPathObj, const CFX_Matrix* pObj2Device);
void ProcessPathPattern(CPDF_PathObject* pPathObj,
const CFX_Matrix* pObj2Device,
int* filltype,
bool* bStroke);
void DrawPathWithPattern(CPDF_PathObject* pPathObj,
const CFX_Matrix* pObj2Device,
const CPDF_Color* pColor,
bool bStroke);
bool ClipPattern(const CPDF_PageObject* pPageObj,
const CFX_Matrix* pObj2Device,
bool bStroke);
bool SelectClipPath(const CPDF_PathObject* pPathObj,
const CFX_Matrix* pObj2Device,
bool bStroke);
bool ProcessImage(CPDF_ImageObject* pImageObj, const CFX_Matrix* pObj2Device);
void ProcessShading(const CPDF_ShadingObject* pShadingObj,
const CFX_Matrix* pObj2Device);
void DrawShading(const CPDF_ShadingPattern* pPattern,
CFX_Matrix* pMatrix,
const FX_RECT& clip_rect,
int alpha,
bool bAlphaMode);
bool ProcessType3Text(CPDF_TextObject* textobj,
const CFX_Matrix* pObj2Device);
bool ProcessText(CPDF_TextObject* textobj,
const CFX_Matrix* pObj2Device,
CFX_PathData* pClippingPath);
void DrawTextPathWithPattern(const CPDF_TextObject* textobj,
const CFX_Matrix* pObj2Device,
CPDF_Font* pFont,
float font_size,
const CFX_Matrix* pTextMatrix,
bool bFill,
bool bStroke);
bool ProcessForm(const CPDF_FormObject* pFormObj,
const CFX_Matrix* pObj2Device);
RetainPtr<CFX_DIBitmap> GetBackdrop(const CPDF_PageObject* pObj,
const FX_RECT& rect,
bool bBackAlphaRequired,
int* left,
int* top);
RetainPtr<CFX_DIBitmap> LoadSMask(CPDF_Dictionary* pSMaskDict,
FX_RECT* pClipRect,
const CFX_Matrix* pMatrix);
// Optionally write the colorspace family value into |pCSFamily|.
FX_ARGB GetBackColor(const CPDF_Dictionary* pSMaskDict,
const CPDF_Dictionary* pGroupDict,
int* pCSFamily);
static RetainPtr<CPDF_Type3Cache> GetCachedType3(CPDF_Type3Font* pFont);
static std::unique_ptr<CPDF_GraphicStates> CloneObjStates(
const CPDF_GraphicStates* pPathObj,
bool bStroke);
FX_ARGB GetStrokeArgb(CPDF_PageObject* pObj) const;
FX_RECT GetObjectClippedRect(const CPDF_PageObject* pObj,
const CFX_Matrix* pObj2Device) const;
CPDF_RenderOptions m_Options;
UnownedPtr<const CPDF_Dictionary> m_pFormResource;
UnownedPtr<CPDF_Dictionary> m_pPageResource;
std::vector<CPDF_Type3Font*> m_Type3FontCache;
UnownedPtr<CPDF_RenderContext> const m_pContext;
bool m_bStopped = false;
CFX_RenderDevice* const m_pDevice;
CFX_Matrix m_DeviceMatrix;
CPDF_ClipPath m_LastClipPath;
const CPDF_PageObject* m_pCurObj = nullptr;
const CPDF_PageObject* m_pStopObj = nullptr;
CPDF_GraphicStates m_InitialStates;
std::unique_ptr<CPDF_ImageRenderer> m_pImageRenderer;
CPDF_Transparency m_Transparency;
bool m_bPrint = false;
bool m_bDropObjects = false;
bool m_bStdCS = false;
bool m_bLoadMask = false;
uint32_t m_GroupFamily = 0;
UnownedPtr<CPDF_Type3Char> m_pType3Char;
FX_ARGB m_T3FillColor = 0;
int m_curBlend = FXDIB_BLEND_NORMAL;
};
#endif // CORE_FPDFAPI_RENDER_CPDF_RENDERSTATUS_H_
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