PWL_EditCtrl.h revision 4d3acf4ec42bf6e838f9060103aff98fbf170794 
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_PDFWINDOW_PWL_EDITCTRL_H_
8#define FPDFSDK_PDFWINDOW_PWL_EDITCTRL_H_
9
10#include <memory>
11
12#include "core/fxcrt/fx_string.h"
13#include "fpdfsdk/fxedit/fx_edit.h"
14#include "fpdfsdk/pdfwindow/PWL_Wnd.h"
15
16class CFX_Edit;
17class CPWL_Caret;
18class CPWL_Edit;
19class CPWL_EditCtrl;
20struct CPVT_SecProps;
21struct CPVT_WordPlace;
22struct CPVT_WordProps;
23struct CPVT_WordRange;
24
25enum PWL_EDIT_ALIGNFORMAT_H { PEAH_LEFT = 0, PEAH_MIDDLE, PEAH_RIGHT };
26
27enum PWL_EDIT_ALIGNFORMAT_V { PEAV_TOP = 0, PEAV_CENTER, PEAV_BOTTOM };
28
29class CPWL_EditCtrl : public CPWL_Wnd {
30  friend class CPWL_Edit_Notify;
31
32 public:
33  CPWL_EditCtrl();
34  ~CPWL_EditCtrl() override;
35
36  CFX_FloatRect GetContentRect() const;
37  void GetCaretPos(int32_t& x, int32_t& y) const;
38
39  CFX_WideString GetText() const;
40  void SetSel(int32_t nStartChar, int32_t nEndChar);
41  void GetSel(int32_t& nStartChar, int32_t& nEndChar) const;
42  void GetTextRange(const CFX_FloatRect& rect,
43                    int32_t& nStartChar,
44                    int32_t& nEndChar) const;
45  CFX_WideString GetText(int32_t& nStartChar, int32_t& nEndChar) const;
46  void Clear();
47  void SelectAll();
48
49  int32_t GetCaret() const;
50  void SetCaret(int32_t nPos);
51  int32_t GetTotalWords() const;
52
53  void Paint();
54
55  void EnableRefresh(bool bRefresh);
56  CFX_FloatPoint GetScrollPos() const;
57  void SetScrollPos(const CFX_FloatPoint& point);
58
59  void SetCharSet(uint8_t nCharSet) { m_nCharSet = nCharSet; }
60  int32_t GetCharSet() const;
61
62  void SetCodePage(int32_t nCodePage) { m_nCodePage = nCodePage; }
63  int32_t GetCodePage() const { return m_nCodePage; }
64
65  CPDF_Font* GetCaretFont() const;
66  FX_FLOAT GetCaretFontSize() const;
67
68  bool CanUndo() const;
69  bool CanRedo() const;
70  void Redo();
71  void Undo();
72
73  void SetReadyToInput();
74
75  // CPWL_Wnd
76  void OnCreate(PWL_CREATEPARAM& cp) override;
77  void OnCreated() override;
78  bool OnKeyDown(uint16_t nChar, uint32_t nFlag) override;
79  bool OnChar(uint16_t nChar, uint32_t nFlag) override;
80  bool OnLButtonDown(const CFX_FloatPoint& point, uint32_t nFlag) override;
81  bool OnLButtonUp(const CFX_FloatPoint& point, uint32_t nFlag) override;
82  bool OnMouseMove(const CFX_FloatPoint& point, uint32_t nFlag) override;
83  void OnNotify(CPWL_Wnd* pWnd,
84                uint32_t msg,
85                intptr_t wParam = 0,
86                intptr_t lParam = 0) override;
87  void CreateChildWnd(const PWL_CREATEPARAM& cp) override;
88  void RePosChildWnd() override;
89  void SetFontSize(FX_FLOAT fFontSize) override;
90  FX_FLOAT GetFontSize() const override;
91  void SetCursor() override;
92
93  void IOnSetScrollInfoY(FX_FLOAT fPlateMin,
94                         FX_FLOAT fPlateMax,
95                         FX_FLOAT fContentMin,
96                         FX_FLOAT fContentMax,
97                         FX_FLOAT fSmallStep,
98                         FX_FLOAT fBigStep);
99  void IOnSetScrollPosY(FX_FLOAT fy);
100  void IOnSetCaret(bool bVisible,
101                   const CFX_FloatPoint& ptHead,
102                   const CFX_FloatPoint& ptFoot,
103                   const CPVT_WordPlace& place);
104  void IOnCaretChange(const CPVT_SecProps& secProps,
105                      const CPVT_WordProps& wordProps);
106  void IOnContentChange(const CFX_FloatRect& rcContent);
107  void IOnInvalidateRect(CFX_FloatRect* pRect);
108
109 protected:
110  void InsertText(const CFX_WideString& wsText);
111  void SetText(const CFX_WideString& wsText);
112  void CopyText();
113  void PasteText();
114  void CutText();
115  void ShowVScrollBar(bool bShow);
116  void InsertWord(uint16_t word, int32_t nCharset);
117  void InsertReturn();
118
119  bool IsWndHorV();
120
121  void Delete();
122  void Backspace();
123
124  void GetCaretInfo(CFX_FloatPoint& ptHead, CFX_FloatPoint& ptFoot) const;
125  void SetCaret(bool bVisible,
126                const CFX_FloatPoint& ptHead,
127                const CFX_FloatPoint& ptFoot);
128
129  void SetEditCaret(bool bVisible);
130
131  std::unique_ptr<CFX_Edit> m_pEdit;
132  CPWL_Caret* m_pEditCaret;
133  bool m_bMouseDown;
134
135 private:
136  void CreateEditCaret(const PWL_CREATEPARAM& cp);
137
138  int32_t m_nCharSet;
139  int32_t m_nCodePage;
140};
141
142#endif  // FPDFSDK_PDFWINDOW_PWL_EDITCTRL_H_
143