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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 _FDE_TXTEDTBLOCK_H
      8 #define _FDE_TXTEDTBLOCK_H
      9 #ifdef FDE_USEFORMATBLOCK
     10 class CFDE_TxtEdtEngine;
     11 class CFDE_TxtEdtBlock;
     12 class CFDE_TxtEdtFieldFormatParser;
     13 class CFDE_TxtEdtField;
     14 class CFDE_TxtEdtField_Integer;
     15 class CFDE_TxtEdtField_Float;
     16 class CFDE_TxtEdtField_Password;
     17 class CFDE_TxtEdtField_String;
     18 class CFDE_TxtEdtField_Fixed;
     19 #define FDE_FORMAT_EDIT_FIELD_HADERSIZE 3
     20 #define FDE_FORMAT_EDIT_FIELD_TAILSIZE 1
     21 enum FDE_FORMAT_FIELD_INSERT_RET {
     22   FDE_FORMAT_FIELD_INSERT_RET_S_NORMAL = 0,
     23   FDE_FORMAT_FIELD_INSERT_RET_S_FULL,
     24   FDE_FORMAT_FIELD_INSERT_RET_F_FULL,
     25   FDE_FORMAT_FIELD_INSERT_RET_F_INVALIDATE,
     26 };
     27 enum FDE_FORMAT_FIELD_DELETE_RET {
     28   FDE_FORMAT_FIELD_DELETE_RET_S = 0,
     29   FDE_FORMAT_FIELD_DELETE_RET_F_INVALIDATE,
     30   FDE_FORMAT_FIELD_DELETE_RET_F_BOUNDARY,
     31 };
     32 enum FDE_FORMAT_FIELD_VALIDATE_RET {
     33   FDE_FORMAT_FIELD_VALIDATE_S = 0,
     34   FDE_FORMAT_FIELD_VALIDATE_F_FULL,
     35   FDE_FORMAT_FIELD_VALIDATE_F_INVALIDATE,
     36 };
     37 enum FDE_FORMAT_CARET_DIRECTION {
     38   FDE_FORMAT_CARET_FORWARD,
     39   FDE_FORMAT_CARET_MIDDLE,
     40   FDE_FORMAT_CARET_BACKWARD
     41 };
     42 class CFDE_TxtEdtBlock {
     43  public:
     44   CFDE_TxtEdtBlock(CFDE_TxtEdtEngine* pEngine,
     45                    const CFX_WideString& wsBlock,
     46                    int32_t nPosition);
     47   ~CFDE_TxtEdtBlock();
     48   void GetDisplayText(CFX_WideString& wsDisplay);
     49   int32_t GetLength() const;
     50   void GetBlockText(CFX_WideString& wsBlock);
     51   int32_t CountField() const;
     52   void GetFieldText(int32_t nIndex, CFX_WideString& wsField);
     53   int32_t GetFieldTextLength() const;
     54 
     55   int32_t GetPos() const;
     56   void GetRealText(CFX_WideString& wsText) const;
     57   void Backup();
     58   void Restore();
     59   void SetIndex(int32_t nIndex) { m_nIndex = nIndex; }
     60   int32_t GetIndex() const { return m_nIndex; }
     61 
     62  private:
     63   CFDE_TxtEdtEngine* m_pEngine;
     64   int32_t m_nDisplayLength;
     65   int32_t m_nIndex;
     66 
     67   int32_t m_nPosition;
     68   CFX_ArrayTemplate<CFDE_TxtEdtField*> m_FieldArr;
     69   CFX_ArrayTemplate<CFDE_TxtEdtField*> m_EditFieldArr;
     70 };
     71 class CFDE_TxtEdtFieldFormatParser {
     72  public:
     73   CFDE_TxtEdtFieldFormatParser();
     74   ~CFDE_TxtEdtFieldFormatParser();
     75   FX_BOOL Parse(const CFX_WideString& wsFormat);
     76   int32_t CountItems() const;
     77   void GetItem(int32_t nIndex,
     78                CFX_WideString& wsKey,
     79                CFX_WideString& wsValue) const;
     80 
     81  private:
     82   typedef struct {
     83     int32_t nKeyStart;
     84     int32_t nKeyCount;
     85     int32_t nValStart;
     86     int32_t nValCount;
     87   } FDE_TXTEDTFORMATITEM, *FDE_LPTXTEDTFORMATITEM;
     88 
     89   CFX_WideString m_wsFormat;
     90   CFX_ArrayTemplate<FDE_LPTXTEDTFORMATITEM> m_ItemArr;
     91 };
     92 class CFDE_TxtEdtField {
     93  public:
     94   static CFDE_TxtEdtField* Create(const CFX_WideString& wsField,
     95                                   int32_t nIndex,
     96                                   CFDE_TxtEdtBlock* pBlock);
     97   virtual void Release();
     98   virtual int32_t Insert(int32_t nIndex,
     99                          const CFX_WideString& wsIns,
    100                          int32_t& nCaret,
    101                          FX_BOOL& bBefore);
    102   virtual int32_t Delete(int32_t nIndex,
    103                          int32_t nCount,
    104                          CFX_WideString& wsDel,
    105                          int32_t& nCaret,
    106                          FX_BOOL& bBefore);
    107   virtual int32_t Replace(int32_t nIndex,
    108                           int32_t nCount,
    109                           const CFX_WideString& wsIns,
    110                           CFX_WideString& wsDel,
    111                           int32_t& nCaret,
    112                           FX_BOOL& bBefore);
    113   virtual void GetDisplayText(CFX_WideString& wsDisplay);
    114   virtual int32_t GetDisplayLength();
    115   virtual void GetFieldText(CFX_WideString& wsField);
    116   virtual int32_t GetFieldTextLength() const;
    117   virtual int32_t GetRealIndex(int32_t nIndex) const;
    118 
    119   virtual int32_t NormalizeCaretPos(
    120       int32_t nIndex,
    121       FDE_FORMAT_CARET_DIRECTION eDirection = FDE_FORMAT_CARET_MIDDLE) const;
    122 
    123   virtual FX_BOOL GetEditableRange(int32_t& nBgn, int32_t& nEnd) const;
    124   virtual void Backup();
    125   virtual void Restore();
    126   virtual FX_BOOL IsFix() const { return FALSE; }
    127   void SetIndex(int32_t nIndex) { m_nIndex = nIndex; }
    128   int32_t GetIndex() const { return m_nIndex; }
    129   int32_t GetBlockIndex() const { return m_pBlock->GetIndex(); }
    130 
    131  protected:
    132   CFDE_TxtEdtField(int32_t nIndex, CFDE_TxtEdtBlock* pBlock);
    133   virtual ~CFDE_TxtEdtField() {}
    134   virtual int32_t Validate(const CFX_WideString& wsText) const;
    135   virtual void GetNormalizedFieldText(CFX_WideString& wsField) const;
    136   int32_t m_nLength;
    137   CFX_WideString m_wsField;
    138   CFX_WideString m_wsBackup;
    139   FX_WCHAR m_wcFill;
    140   FX_BOOL m_bReserveSpace;
    141   FX_BOOL m_bLeftAlignment;
    142   int32_t m_nIndex;
    143   CFDE_TxtEdtBlock* m_pBlock;
    144 };
    145 class CFDE_TxtEdtField_Integer : public CFDE_TxtEdtField {
    146  public:
    147   CFDE_TxtEdtField_Integer(const CFX_WideString& wsField,
    148                            int32_t nIndex,
    149                            CFDE_TxtEdtBlock* pBlock);
    150 
    151  protected:
    152   virtual ~CFDE_TxtEdtField_Integer() {}
    153   virtual int32_t Validate(const CFX_WideString& wsText) const;
    154 
    155  private:
    156   FX_BOOL m_bSign;
    157 };
    158 class CFDE_TxtEdtField_Float : public CFDE_TxtEdtField {
    159  public:
    160   CFDE_TxtEdtField_Float(const CFX_WideString& wsField,
    161                          int32_t nIndex,
    162                          CFDE_TxtEdtBlock* pBlock);
    163 
    164  protected:
    165   virtual ~CFDE_TxtEdtField_Float() {}
    166   virtual int32_t Validate(const CFX_WideString& wsText) const;
    167 
    168  private:
    169   FX_BOOL m_bSigned;
    170   int32_t m_nIntPartlength;
    171   int32_t m_nDecPartLength;
    172 };
    173 class CFDE_TxtEdtField_Password : public CFDE_TxtEdtField {
    174  public:
    175   CFDE_TxtEdtField_Password(const CFX_WideString& wsField,
    176                             int32_t nIndex,
    177                             CFDE_TxtEdtBlock* pBlock);
    178 
    179  protected:
    180   virtual ~CFDE_TxtEdtField_Password() {}
    181   virtual void GetNormalizedFieldText(CFX_WideString& wsField) const;
    182 
    183  private:
    184   FX_WCHAR m_wcAlias;
    185 };
    186 class CFDE_TxtEdtField_String : public CFDE_TxtEdtField {
    187  public:
    188   CFDE_TxtEdtField_String(const CFX_WideString& wsField,
    189                           int32_t nIndex,
    190                           CFDE_TxtEdtBlock* pBlock);
    191 
    192  protected:
    193   virtual ~CFDE_TxtEdtField_String() {}
    194 };
    195 class CFDE_TxtEdtField_Fixed : public CFDE_TxtEdtField {
    196  public:
    197   CFDE_TxtEdtField_Fixed(const CFX_WideString& wsField,
    198                          int32_t nIndex,
    199                          CFDE_TxtEdtBlock* pBlock);
    200   virtual int32_t Insert(int32_t nIndex,
    201                          const CFX_WideString& wsIns,
    202                          int32_t& nCaret,
    203                          FX_BOOL& bBefore) {
    204     return FALSE;
    205   }
    206   virtual int32_t Delete(int32_t nIndex,
    207                          int32_t nCount,
    208                          CFX_WideString& wsDel,
    209                          int32_t& nCaret,
    210                          FX_BOOL& bBefore) {
    211     return FALSE;
    212   }
    213   virtual int32_t Replace(int32_t nIndex,
    214                           int32_t nCount,
    215                           const CFX_WideString& wsIns,
    216                           CFX_WideString& wsDel,
    217                           int32_t& nCaret,
    218                           FX_BOOL& bBefore) {
    219     return FALSE;
    220   }
    221   virtual void GetDisplayText(CFX_WideString& wsDisplay);
    222   virtual int32_t NormalizeCaretPos(
    223       int32_t nIndex,
    224       FDE_FORMAT_CARET_DIRECTION eDirection) const;
    225   virtual FX_BOOL GetEditableRange(int32_t& nBgn, int32_t& nEnd) const {
    226     return FALSE;
    227   }
    228   virtual void Backup() {}
    229   virtual void Restore() {}
    230 
    231   virtual FX_BOOL IsFix() const { return TRUE; }
    232 
    233  protected:
    234   virtual ~CFDE_TxtEdtField_Fixed() {}
    235 };
    236 #endif
    237 #endif
    238