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      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 XFA_FDE_FDE_VISUALSET_H_
      8 #define XFA_FDE_FDE_VISUALSET_H_
      9 
     10 #include <vector>
     11 
     12 #include "core/fxcrt/cfx_retain_ptr.h"
     13 #include "core/fxcrt/fx_coordinates.h"
     14 #include "core/fxcrt/fx_system.h"
     15 #include "core/fxge/fx_dib.h"
     16 #include "xfa/fde/cfde_path.h"
     17 #include "xfa/fde/fde_object.h"
     18 #include "xfa/fgas/font/cfgas_fontmgr.h"
     19 
     20 class FXTEXT_CHARPOS;
     21 
     22 enum FDE_VISUALOBJTYPE {
     23   FDE_VISUALOBJ_Canvas = 0x00,
     24   FDE_VISUALOBJ_Text = 0x01
     25 };
     26 
     27 struct FDE_TEXTEDITPIECE {
     28   FDE_TEXTEDITPIECE();
     29   FDE_TEXTEDITPIECE(const FDE_TEXTEDITPIECE& that);
     30   ~FDE_TEXTEDITPIECE();
     31 
     32   int32_t nStart;
     33   int32_t nCount;
     34   int32_t nBidiLevel;
     35   CFX_RectF rtPiece;
     36   uint32_t dwCharStyles;
     37 };
     38 inline FDE_TEXTEDITPIECE::FDE_TEXTEDITPIECE() = default;
     39 inline FDE_TEXTEDITPIECE::FDE_TEXTEDITPIECE(const FDE_TEXTEDITPIECE& that) =
     40     default;
     41 inline FDE_TEXTEDITPIECE::~FDE_TEXTEDITPIECE() = default;
     42 
     43 class IFDE_VisualSet {
     44  public:
     45   virtual ~IFDE_VisualSet() {}
     46   virtual FDE_VISUALOBJTYPE GetType() = 0;
     47   virtual CFX_RectF GetRect(const FDE_TEXTEDITPIECE& hVisualObj) = 0;
     48 };
     49 
     50 class IFDE_CanvasSet : public IFDE_VisualSet {
     51  public:
     52   virtual FX_POSITION GetFirstPosition() = 0;
     53   virtual FDE_TEXTEDITPIECE* GetNext(FX_POSITION& pos,
     54                                      IFDE_VisualSet*& pVisualSet) = 0;
     55 };
     56 
     57 class IFDE_TextSet : public IFDE_VisualSet {
     58  public:
     59   virtual int32_t GetString(FDE_TEXTEDITPIECE* hText,
     60                             CFX_WideString& wsText) = 0;
     61   virtual CFX_RetainPtr<CFGAS_GEFont> GetFont() = 0;
     62   virtual FX_FLOAT GetFontSize() = 0;
     63   virtual FX_ARGB GetFontColor() = 0;
     64   virtual int32_t GetDisplayPos(const FDE_TEXTEDITPIECE& hText,
     65                                 FXTEXT_CHARPOS* pCharPos,
     66                                 bool bCharCode = false,
     67                                 CFX_WideString* pWSForms = nullptr) = 0;
     68   virtual std::vector<CFX_RectF> GetCharRects(const FDE_TEXTEDITPIECE* hText,
     69                                               bool bbox) = 0;
     70 };
     71 
     72 #endif  // XFA_FDE_FDE_VISUALSET_H_
     73