fde_psr.h revision ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4 
1// Copyright 2014 PDFium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7#ifndef _FDE_PARSER
8#define _FDE_PARSER
9enum FDE_VISUALOBJTYPE {
10  FDE_VISUALOBJ_Canvas = 0x00,
11  FDE_VISUALOBJ_Text = 0x01,
12  FDE_VISUALOBJ_Image = 0x02,
13  FDE_VISUALOBJ_Path = 0x04,
14  FDE_VISUALOBJ_Widget = 0x08,
15};
16typedef struct _FDE_HVISUALOBJ { void* pData; } const* FDE_HVISUALOBJ;
17class IFDE_VisualSet {
18 public:
19  virtual ~IFDE_VisualSet() {}
20  virtual FDE_VISUALOBJTYPE GetType() = 0;
21  virtual FX_BOOL GetBBox(FDE_HVISUALOBJ hVisualObj, CFX_RectF& bbox) = 0;
22  virtual FX_BOOL GetMatrix(FDE_HVISUALOBJ hVisualObj, CFX_Matrix& matrix) = 0;
23  virtual FX_BOOL GetRect(FDE_HVISUALOBJ hVisualObj, CFX_RectF& rt) = 0;
24  virtual FX_BOOL GetClip(FDE_HVISUALOBJ hVisualObj, CFX_RectF& rt) = 0;
25};
26class IFDE_CanvasSet : public IFDE_VisualSet {
27 public:
28  virtual FX_POSITION GetFirstPosition(FDE_HVISUALOBJ hCanvas) = 0;
29  virtual FDE_HVISUALOBJ GetNext(FDE_HVISUALOBJ hCanvas,
30                                 FX_POSITION& pos,
31                                 IFDE_VisualSet*& pVisualSet) = 0;
32  virtual FDE_HVISUALOBJ GetParentCanvas(FDE_HVISUALOBJ hCanvas,
33                                         IFDE_VisualSet*& pVisualSet) = 0;
34};
35class IFDE_TextSet : public IFDE_VisualSet {
36 public:
37  virtual int32_t GetString(FDE_HVISUALOBJ hText, CFX_WideString& wsText) = 0;
38  virtual IFX_Font* GetFont(FDE_HVISUALOBJ hText) = 0;
39  virtual FX_FLOAT GetFontSize(FDE_HVISUALOBJ hText) = 0;
40  virtual FX_ARGB GetFontColor(FDE_HVISUALOBJ hText) = 0;
41  virtual int32_t GetDisplayPos(FDE_HVISUALOBJ hText,
42                                FXTEXT_CHARPOS* pCharPos,
43                                FX_BOOL bCharCode = FALSE,
44                                CFX_WideString* pWSForms = NULL) = 0;
45  virtual int32_t GetCharRects(FDE_HVISUALOBJ hText,
46                               CFX_RectFArray& rtArray) = 0;
47};
48class IFDE_ImageSet : public IFDE_VisualSet {
49 public:
50  virtual IFDE_Image* GetImage(FDE_HVISUALOBJ hImage) = 0;
51  virtual FX_POSITION GetFirstFilterPosition(FDE_HVISUALOBJ hImage) = 0;
52  virtual FDE_LPCIMAGEFILTERPARAMS GetNextFilter(FDE_HVISUALOBJ hImage,
53                                                 FX_POSITION& pos) = 0;
54};
55#define FDE_FILLMODE_Alternate 1
56#define FDE_FILLMODE_Winding 2
57#define FDE_PATHRENDER_Stroke 1
58#define FDE_PATHRENDER_Fill 2
59#define FDE_PATHRENDER_FillStroke 3
60class IFDE_PathSet : public IFDE_VisualSet {
61 public:
62  virtual IFDE_Path* GetPath(FDE_HVISUALOBJ hPath) = 0;
63  virtual int32_t GetFillMode(FDE_HVISUALOBJ hPath) = 0;
64  virtual int32_t GetRenderMode(FDE_HVISUALOBJ hPath) = 0;
65  virtual IFDE_Pen* GetPen(FDE_HVISUALOBJ hPath) = 0;
66  virtual FX_FLOAT GetPenWidth(FDE_HVISUALOBJ hPath) = 0;
67  virtual IFDE_Brush* GetBrush(FDE_HVISUALOBJ hPath) = 0;
68};
69enum FDE_WIDGETOBJ {
70  FDE_WIDGETOBJ_Unknown = 0x0000,
71  FDE_WIDGETOBJ_Anchor = 0x0100,
72  FDE_WIDGETOBJ_NamedDest = 0x0200,
73  FDE_WIDGETOBJ_HyperLink = 0x0400,
74};
75#define FDE_WIDGETPARAM_Uri 1
76#define FDE_WIDGETPARAM_Rects 2
77class IFDE_WidgetSet : public IFDE_VisualSet {
78 public:
79  virtual FDE_WIDGETOBJ GetWidgetType(FDE_HVISUALOBJ hWidget) = 0;
80  virtual FX_FLOAT GetFloat(FDE_HVISUALOBJ hWidget,
81                            int32_t iParameter,
82                            FX_FLOAT fDefVal = 0.0f) = 0;
83  virtual int32_t GetInteger(FDE_HVISUALOBJ hWidget,
84                             int32_t iParameter,
85                             int32_t iDefVal = 0) = 0;
86  virtual FX_BOOL GetString(FDE_HVISUALOBJ hWidget,
87                            int32_t iParameter,
88                            CFX_WideString& wsValue) = 0;
89  virtual FX_BOOL GetRects(FDE_HVISUALOBJ hWidget,
90                           int32_t iParameter,
91                           CFX_RectFArray& rects) = 0;
92};
93class IFDE_VisualSetIterator {
94 public:
95  static IFDE_VisualSetIterator* Create();
96  virtual ~IFDE_VisualSetIterator() {}
97  virtual void Release() = 0;
98  virtual FX_BOOL AttachCanvas(IFDE_CanvasSet* pCanvas) = 0;
99  virtual FX_BOOL FilterObjects(FX_DWORD dwObjects = 0xFFFFFFFF) = 0;
100  virtual void Reset() = 0;
101  virtual FDE_HVISUALOBJ GetNext(IFDE_VisualSet*& pVisualSet,
102                                 FDE_HVISUALOBJ* phCanvasObj = NULL,
103                                 IFDE_CanvasSet** ppCanvasSet = NULL) = 0;
104};
105#endif
106