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Diffstat (limited to 'core/include/fpdfapi/fpdf_render.h')
| -rw-r--r-- | core/include/fpdfapi/fpdf_render.h | 318 |
1 files changed, 318 insertions, 0 deletions
diff --git a/core/include/fpdfapi/fpdf_render.h b/core/include/fpdfapi/fpdf_render.h new file mode 100644 index 0000000000..22ba56fa66 --- /dev/null +++ b/core/include/fpdfapi/fpdf_render.h @@ -0,0 +1,318 @@ +// 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
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