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1 // TextBuffer.h |
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2 // |
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3 // Copyright (c) 2010 Accenture. All rights reserved. |
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4 // This component and the accompanying materials are made available |
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5 // under the terms of the "Eclipse Public License v1.0" |
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6 // which accompanies this distribution, and is available |
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7 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 // |
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9 // Initial Contributors: |
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10 // Accenture - Initial contribution |
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11 // |
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12 |
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13 #ifndef __TEXTBUFFER_H__ |
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14 #define __TEXTBUFFER_H__ |
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15 |
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16 #if _MSC_VER > 1000 |
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17 #pragma once |
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18 #endif // _MSC_VER > 1000 |
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19 |
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20 #include "base.h" |
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21 |
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22 |
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23 class MTextBufferObserver |
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24 { |
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25 public: |
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26 virtual void HandleTextBufferChange(int aPosX, int aPosY, PTCHAR aPtr, int aLength) = 0; |
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27 virtual void HandleTextBufferScroll() = 0; |
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28 virtual void HandleTextBufferCursorChange() = 0; |
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29 virtual void HandleTextBufferCleared() = 0; |
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30 }; |
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31 |
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32 |
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33 class CTextBuffer : public CBase |
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34 { |
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35 public: |
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36 static CTextBuffer* New(int aWidth, int aHeight, int aMaxNumOverflowLines); |
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37 virtual ~CTextBuffer(); |
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38 void SetObserver(MTextBufferObserver* aObserver); |
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39 void Write(LPCTSTR aString, int aLength); |
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40 void GetCursorPos(int& aX, int& aY) const; |
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41 void SetAbsCursorPos(int aX, int aY); |
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42 void SetRelCursorPos(int aX, int aY); |
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43 void GetSize(int& aWidth, int& aHeight) const; |
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44 int NumOverflowLines() const; |
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45 void Clear(); |
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46 void ClearToEndOfLine(); |
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47 LPCTSTR GetLine(int aPos) const; |
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48 void CaptureToFile(LPCTSTR aFileName); |
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49 void StopCaptureToFile(); |
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50 bool IsCapturingToFile() const; |
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51 private: |
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52 CTextBuffer(int aWidth, int aHeight, int aMaxNumOverflowLines); |
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53 void Construct(); |
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54 void MoveCursor(int aNewX, int aNewY); |
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55 PTCHAR CursorPtr() const; |
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56 PTCHAR LineEndPtr() const; |
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57 PTCHAR BufEndPtr() const; |
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58 void WriteSpecialChar(TCHAR aChar); |
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59 void WriteBlock(LPCTSTR aString, int aLength); |
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60 bool IsOrdinaryChar(TCHAR aChar) const; |
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61 int NumCharsToLineEnd() const; |
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62 void ClearBuffer(); |
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63 void CursorLeft(); |
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64 void CursorRight(); |
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65 void FormFeed(); |
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66 void LineFeed(); |
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67 void CarriageReturn(); |
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68 void BackSpace(); |
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69 void HorizontalTab(); |
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70 void ScrollUp(); |
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71 void WriteLineToCaptureFile(LPCTSTR aLinePtr); |
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72 void WriteOverflowLinesToCaptureFile(); |
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73 void WriteBufferToCaptureFile(); |
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74 private: |
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75 MTextBufferObserver* iObserver; |
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76 PTCHAR iBuffer; |
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77 const int iWidth; |
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78 const int iHeight; |
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79 const int iMaxNumOverflowLines; |
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80 int iNumOverflowLines; |
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81 int iCursorPosX; |
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82 int iCursorPosY; |
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83 int iCaptureFile; |
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84 }; |
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85 |
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86 #endif // __TEXTBUFFER_H__ |