fpdfsdk/include/pdfwindow/PWL_Edit.h

   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 FPDFSDK_INCLUDE_PDFWINDOW_PWL_EDIT_H_
   8 #define FPDFSDK_INCLUDE_PDFWINDOW_PWL_EDIT_H_
   9
  10 #include "../../../core/include/fxcrt/fx_basic.h"
  11 #include "PWL_EditCtrl.h"
  12 #include "PWL_Wnd.h"
  13
  14 class CPWL_Edit;
  15 class IPWL_Filler_Notify;
  16 class IPWL_SpellCheck;
  17
  18 class IPWL_Filler_Notify
  19 {
  20 public:
  21         virtual ~IPWL_Filler_Notify() { }
  22         virtual void                                    QueryWherePopup(void* pPrivateData, FX_FLOAT fPopupMin,FX_FLOAT fPopupMax,
  23                                                                                 int32_t & nRet, FX_FLOAT & fPopupRet) = 0; //nRet: (0:bottom 1:top)
  24         virtual void                                    OnBeforeKeyStroke(FX_BOOL bEditOrList, void* pPrivateData, int32_t nKeyCode,
  25                                                                                 CFX_WideString & strChange, const CFX_WideString& strChangeEx,
  26                                                                                 int nSelStart, int nSelEnd,
  27                                                                                 FX_BOOL bKeyDown, FX_BOOL & bRC, FX_BOOL & bExit, FX_DWORD nFlag) = 0;
  28         virtual void                                    OnAfterKeyStroke(FX_BOOL bEditOrList, void* pPrivateData, FX_BOOL & bExit, FX_DWORD nFlag) = 0;
  29 };
  30
  31 class PWL_CLASS CPWL_Edit : public CPWL_EditCtrl, public IFX_Edit_OprNotify
  32 {
  33 public:
  34         CPWL_Edit();
  35         virtual ~CPWL_Edit();
  36
  37 public:
  38         virtual CFX_ByteString                  GetClassName() const;
  39         virtual void                                    OnDestroy();
  40         virtual void                                    OnCreated();
  41         virtual void                                    RePosChildWnd();
  42         virtual CPDF_Rect                               GetClientRect() const;
  43
  44         virtual void                                    GetThisAppearanceStream(CFX_ByteTextBuf & sAppStream);
  45         virtual void                                    DrawThisAppearance(CFX_RenderDevice* pDevice, CPDF_Matrix* pUser2Device);
  46
  47         virtual FX_BOOL                                 OnLButtonDown(const CPDF_Point & point, FX_DWORD nFlag);
  48         virtual FX_BOOL                                 OnLButtonDblClk(const CPDF_Point & point, FX_DWORD nFlag);
  49         virtual FX_BOOL                                 OnRButtonUp(const CPDF_Point & point, FX_DWORD nFlag);
  50         virtual FX_BOOL                                 OnMouseWheel(short zDelta, const CPDF_Point & point, FX_DWORD nFlag);
  51
  52         virtual FX_BOOL                                 OnKeyDown(FX_WORD nChar, FX_DWORD nFlag);
  53         virtual FX_BOOL                                 OnChar(FX_WORD nChar, FX_DWORD nFlag);
  54
  55         virtual CPDF_Rect                               GetFocusRect() const;
  56
  57 public:
  58         void                                                    SetAlignFormatH(PWL_EDIT_ALIGNFORMAT_H nFormat = PEAH_LEFT, FX_BOOL bPaint = TRUE);     //0:left 1:right 2:middle
  59         void                                                    SetAlignFormatV(PWL_EDIT_ALIGNFORMAT_V nFormat = PEAV_TOP, FX_BOOL bPaint = TRUE);      //0:top 1:bottom 2:center
  60
  61         void                                                    SetCharArray(int32_t nCharArray);
  62         void                                                    SetLimitChar(int32_t nLimitChar);
  63
  64         void                                                    SetHorzScale(int32_t nHorzScale, FX_BOOL bPaint = TRUE);
  65         void                                                    SetCharSpace(FX_FLOAT fCharSpace, FX_BOOL bPaint = TRUE);
  66
  67         void                                                    SetLineLeading(FX_FLOAT fLineLeading, FX_BOOL bPaint = TRUE);
  68
  69         void                                                    EnableSpellCheck(FX_BOOL bEnabled);
  70
  71         FX_BOOL                                                 CanSelectAll() const;
  72         FX_BOOL                                                 CanClear() const;
  73         FX_BOOL                                                 CanCopy() const;
  74         FX_BOOL                                                 CanCut() const;
  75         FX_BOOL                                                 CanPaste() const;
  76
  77         virtual void                                    CopyText();
  78         virtual void                                    PasteText();
  79         virtual void                                    CutText();
  80
  81         virtual void                                    SetText(const FX_WCHAR* csText);
  82         void                                                    ReplaceSel(const FX_WCHAR* csText);
  83
  84         CFX_ByteString                                  GetTextAppearanceStream(const CPDF_Point & ptOffset) const;
  85         CFX_ByteString                                  GetCaretAppearanceStream(const CPDF_Point & ptOffset) const;
  86         CFX_ByteString                                  GetSelectAppearanceStream(const CPDF_Point & ptOffset) const;
  87
  88         FX_BOOL                                                 IsTextFull() const;
  89
  90         static FX_FLOAT                                 GetCharArrayAutoFontSize(CPDF_Font* pFont, const CPDF_Rect& rcPlate, int32_t nCharArray);
  91
  92         void                                                    SetFillerNotify(IPWL_Filler_Notify* pNotify) {m_pFillerNotify = pNotify;}
  93
  94         void                                                    GeneratePageObjects(CPDF_PageObjects* pPageObjects,
  95                                                                                 const CPDF_Point& ptOffset, CFX_ArrayTemplate<CPDF_TextObject*>& ObjArray);
  96         void                                                    GeneratePageObjects(CPDF_PageObjects* pPageObjects,
  97                                                                                 const CPDF_Point& ptOffset);
  98
  99 protected:
 100         virtual void                                    OnSetFocus();
 101         virtual void                                    OnKillFocus();
 102
 103 protected:
 104         virtual void                                    OnInsertWord(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace);
 105         virtual void                                    OnInsertReturn(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace);
 106         virtual void                                    OnBackSpace(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace);
 107         virtual void                                    OnDelete(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace);
 108         virtual void                                    OnClear(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace);
 109         virtual void                                    OnSetText(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace);
 110         virtual void                                    OnInsertText(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace);
 111         virtual void                                    OnAddUndo(IFX_Edit_UndoItem* pUndoItem);
 112
 113 private:
 114         CPVT_WordRange                                  GetSelectWordRange() const;
 115         virtual void                                    ShowVScrollBar(FX_BOOL bShow);
 116         FX_BOOL                                                 IsVScrollBarVisible() const;
 117         void                                                    SetParamByFlag();
 118
 119         FX_FLOAT                                                GetCharArrayAutoFontSize(int32_t nCharArray);
 120         CPDF_Point                                              GetWordRightBottomPoint(const CPVT_WordPlace& wpWord);
 121
 122         CPVT_WordRange                                  CombineWordRange(const CPVT_WordRange& wr1, const CPVT_WordRange& wr2);
 123         CPVT_WordRange                                  GetLatinWordsRange(const CPDF_Point & point) const;
 124         CPVT_WordRange                                  GetLatinWordsRange(const CPVT_WordPlace & place) const;
 125         CPVT_WordRange                                  GetArabicWordsRange(const CPVT_WordPlace & place) const;
 126         CPVT_WordRange                                  GetSameWordsRange(const CPVT_WordPlace & place, FX_BOOL bLatin, FX_BOOL bArabic) const;
 127
 128         void                                                    AjustArabicWords(const CPVT_WordRange& wr);
 129 public:
 130         FX_BOOL                                                 IsProceedtoOnChar(FX_WORD nKeyCode, FX_DWORD nFlag);
 131 private:
 132         IPWL_Filler_Notify*                             m_pFillerNotify;
 133         IPWL_SpellCheck*                                m_pSpellCheck;
 134         FX_BOOL                                                 m_bFocus;
 135         CPDF_Rect                                               m_rcOldWindow;
 136 public:
 137         void                                                    AttachFFLData(void* pData) {m_pFormFiller = pData;}
 138 private:
 139         void*                                                   m_pFormFiller;
 140 };
 141
 142 #endif  // FPDFSDK_INCLUDE_PDFWINDOW_PWL_EDIT_H_