// Copyright 2014 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 _FPDF_RENDER_
#define _FPDF_RENDER_
#ifndef _FPDF_PAGE_
#include "fpdf_page.h"
#endif
#ifndef _FX_GE_H_
#include "../fxge/fx_ge.h"
#endif
class CPDF_RenderContext;
class CPDF_RenderOptions;
class CPDF_ImageCache;
class IPDF_OCContext;
class CPDF_QuickStretcher;
class CFX_PathData;
class CFX_GraphStateData;
class CFX_RenderDevice;
class CPDF_TextObject;
class CPDF_PathObject;
class CPDF_ImageObject;
class CPDF_ShadingObject;
class CPDF_FormObject;
class IPDF_OCContext
{
public:
virtual ~IPDF_OCContext() {}
virtual FX_BOOL CheckOCGVisible(const CPDF_Dictionary* pOCG) = 0;
FX_BOOL CheckObjectVisible(const CPDF_PageObject* pObj);
};
#define RENDER_COLOR_NORMAL 0
#define RENDER_COLOR_GRAY 1
#define RENDER_COLOR_TWOCOLOR 2
#define RENDER_COLOR_ALPHA 3
#define RENDER_CLEARTYPE 0x00000001
#define RENDER_PRINTGRAPHICTEXT 0x00000002
#define RENDER_FORCE_DOWNSAMPLE 0x00000004
#define RENDER_PRINTPREVIEW 0x00000008
#define RENDER_BGR_STRIPE 0x00000010
#define RENDER_NO_NATIVETEXT 0x00000020
#define RENDER_FORCE_HALFTONE 0x00000040
#define RENDER_RECT_AA 0x00000080
#define RENDER_FILL_FULLCOVER 0x00000100
#define RENDER_PRINTIMAGETEXT 0x00000200
#define RENDER_OVERPRINT 0x00000400
#define RENDER_THINLINE 0x00000800
#define RENDER_NOTEXTSMOOTH 0x10000000
#define RENDER_NOPATHSMOOTH 0x20000000
#define RENDER_NOIMAGESMOOTH 0x40000000
#define RENDER_LIMITEDIMAGECACHE 0x80000000
class CPDF_RenderOptions : public CFX_Object
{
public:
CPDF_RenderOptions();
int m_ColorMode;
FX_COLORREF m_BackColor;
FX_COLORREF m_ForeColor;
FX_DWORD m_Flags;
int m_Interpolation;
FX_DWORD m_AddFlags;
IPDF_OCContext* m_pOCContext;
FX_DWORD m_dwLimitCacheSize;
int m_HalftoneLimit;
FX_ARGB TranslateColor(FX_ARGB argb) const;
};
class CPDF_RenderContext : public CFX_Object
{
public:
CPDF_RenderContext();
void Create(CPDF_Page* pPage, FX_BOOL bFirstLayer = TRUE);
void Create(CPDF_Document* pDoc = NULL, CPDF_PageRenderCache* pPageCache = NULL,
CPDF_Dictionary* pPageResources = NULL, FX_BOOL bFirstLayer = TRUE);
~CPDF_RenderContext();
void Clear();
void AppendObjectList(CPDF_PageObjects* pObjs, const CFX_AffineMatrix* pObject2Device);
void SetBackground(class IPDF_BackgroundDraw* pBackground);
void Render(CFX_RenderDevice* pDevice, const CPDF_RenderOptions* pOptions = NULL,
const CFX_AffineMatrix* pFinalMatrix = NULL);
void DrawObjectList(CFX_RenderDevice* pDevice, CPDF_PageObjects* pObjs,
const CFX_AffineMatrix* pObject2Device, const CPDF_RenderOptions* pOptions);
void GetBackground(CFX_DIBitmap* pBuffer, const CPDF_PageObject* pObj,
const CPDF_RenderOptions* pOptions, CFX_AffineMatrix* pFinalMatrix);
CPDF_PageRenderCache* GetPageCache() const
{
return m_pPageCache;
}
CPDF_Document* m_pDocument;
CPDF_Dictionary* m_pPageResources;
CPDF_PageRenderCache* m_pPageCache;
protected:
CFX_ArrayTemplate<struct _PDF_RenderItem> m_ContentList;
IPDF_BackgroundDraw* m_pBackgroundDraw;
FX_BOOL m_bFirstLayer;
void Render(CFX_RenderDevice* pDevice, const CPDF_PageObject* pStopObj,
const CPDF_RenderOptions* pOptions, const CFX_AffineMatrix* pFinalMatrix);
friend class CPDF_RenderStatus;
friend class CPDF_ProgressiveRenderer;
};
class IPDF_BackgroundDraw
{
public:
virtual void OnDrawBackground(
CFX_RenderDevice* pBitmapDevice,
const CFX_AffineMatrix* pOriginal2Bitmap
) = 0;
};
class CPDF_ProgressiveRenderer : public CFX_Object
{
public:
CPDF_ProgressiveRenderer();
~CPDF_ProgressiveRenderer();
typedef enum {
Ready,
ToBeContinued,
Done,
Failed
} RenderStatus;
RenderStatus GetStatus()
{
return m_Status;
}
void Start(CPDF_RenderContext* pContext, CFX_RenderDevice* pDevice,
const CPDF_RenderOptions* pOptions, class IFX_Pause* pPause, FX_BOOL bDropObjects = FALSE);
void Continue(class IFX_Pause* pPause);
int EstimateProgress();
void Clear();
protected:
RenderStatus m_Status;
CPDF_RenderContext* m_pContext;
CFX_RenderDevice* m_pDevice;
const CPDF_RenderOptions* m_pOptions;
FX_BOOL m_bDropObjects;
class CPDF_RenderStatus* m_pRenderer;
CFX_FloatRect m_ClipRect;
FX_DWORD m_LayerIndex;
FX_DWORD m_ObjectIndex;
FX_POSITION m_ObjectPos;
FX_POSITION m_PrevLastPos;
void RenderStep();
};
class CPDF_TextRenderer : public CFX_Object
{
public:
static void DrawTextString(CFX_RenderDevice* pDevice, int left, int top,
CPDF_Font* pFont,
int height,
const CFX_ByteString& str,
FX_ARGB argb);
static void DrawTextString(CFX_RenderDevice* pDevice, FX_FLOAT origin_x, FX_FLOAT origin_y,
CPDF_Font* pFont,
FX_FLOAT font_size,
const CFX_AffineMatrix* matrix,
const CFX_ByteString& str,
FX_ARGB fill_argb,
FX_ARGB stroke_argb = 0,
const CFX_GraphStateData* pGraphState = NULL,
const CPDF_RenderOptions* pOptions = NULL
);
static FX_BOOL DrawTextPath(CFX_RenderDevice* pDevice, int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos,
CPDF_Font* pFont, FX_FLOAT font_size,
const CFX_AffineMatrix* pText2User, const CFX_AffineMatrix* pUser2Device,
const CFX_GraphStateData* pGraphState,
FX_ARGB fill_argb, FX_ARGB stroke_argb, CFX_PathData* pClippingPath, int nFlag = 0);
static FX_BOOL DrawNormalText(CFX_RenderDevice* pDevice, int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos,
CPDF_Font* pFont, FX_FLOAT font_size, const CFX_AffineMatrix* pText2Device,
FX_ARGB fill_argb, const CPDF_RenderOptions* pOptions);
static FX_BOOL DrawType3Text(CFX_RenderDevice* pDevice, int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos,
CPDF_Font* pFont, FX_FLOAT font_size, const CFX_AffineMatrix* pText2Device,
FX_ARGB fill_argb);
};
class IPDF_PageImageCache
{
public:
static IPDF_PageImageCache* Create();
virtual ~IPDF_PageImageCache() {}
virtual void OutputPage(CFX_RenderDevice* pDevice, CPDF_Page* pPage,
int pos_x, int pos_y, int size_x, int size_y, int rotate) = 0;
virtual void SetCacheLimit(FX_DWORD limit) = 0;
};
class CPDF_PageRenderCache : public CFX_Object
{
public:
CPDF_PageRenderCache(CPDF_Page* pPage)
{
m_pPage = pPage;
m_nTimeCount = 0;
m_nCacheSize = 0;
m_pCurImageCache = NULL;
m_bCurFindCache = FALSE;
m_pCurImageCaches = NULL;
}
~CPDF_PageRenderCache()
{
ClearAll();
}
void ClearAll();
void ClearImageData();
FX_DWORD EstimateSize();
void CacheOptimization(FX_INT32 dwLimitCacheSize);
FX_DWORD GetCachedSize(CPDF_Stream* pStream) const;
FX_DWORD GetTimeCount() const
{
return m_nTimeCount;
}
void SetTimeCount(FX_DWORD dwTimeCount)
{
m_nTimeCount = dwTimeCount;
}
void GetCachedBitmap(CPDF_Stream* pStream, CFX_DIBSource*& pBitmap, CFX_DIBSource*& pMask, FX_DWORD& MatteColor,
FX_BOOL bStdCS = FALSE, FX_DWORD GroupFamily = 0, FX_BOOL bLoadMask = FALSE,
CPDF_RenderStatus* pRenderStatus = NULL, FX_INT32 downsampleWidth = 0, FX_INT32 downsampleHeight = 0);
void ResetBitmap(CPDF_Stream* pStream, const CFX_DIBitmap* pBitmap);
void ClearImageCache(CPDF_Stream* pStream);
CPDF_Page* GetPage()
{
return m_pPage;
}
CFX_MapPtrToPtr m_ImageCaches;
public:
FX_BOOL StartGetCachedBitmap(CPDF_Stream* pStream, FX_BOOL bStdCS = FALSE, FX_DWORD GroupFamily = 0,
FX_BOOL bLoadMask = FALSE, CPDF_RenderStatus* pRenderStatus = NULL,
FX_INT32 downsampleWidth = 0, FX_INT32 downsampleHeight = 0);
FX_BOOL Continue(IFX_Pause* pPause);
CPDF_ImageCache* m_pCurImageCache;
CFX_PtrArray* m_pCurImageCaches;
protected:
friend class CPDF_Page;
CPDF_Page* m_pPage;
FX_DWORD m_nTimeCount;
FX_DWORD m_nCacheSize;
FX_BOOL m_bCurFindCache;
};
class CPDF_RenderConfig : public CFX_Object
{
public:
CPDF_RenderConfig();
~CPDF_RenderConfig();
int m_HalftoneLimit;
int m_RenderStepLimit;
};
#endif