1 /* 2 * Copyright 2006 Haiku, Inc. All Rights Reserved. 3 * Distributed under the terms of the MIT License. 4 * 5 * Authors: 6 * Stephan Aßmus, superstippi@gmx.de 7 */ 8 #ifndef EXPRESSION_TEXT_VIEW_H 9 #define EXPRESSION_TEXT_VIEW_H 10 11 12 #include <List.h> 13 #include <String.h> 14 15 #include "InputTextView.h" 16 17 18 class CalcView; 19 20 class ExpressionTextView : public InputTextView { 21 public: 22 ExpressionTextView(BRect frame, 23 CalcView* calcView); 24 virtual ~ExpressionTextView(); 25 26 // BView 27 virtual void MakeFocus(bool focused = true); 28 virtual void KeyDown(const char* bytes, int32 numBytes); 29 30 virtual void MouseDown(BPoint where); 31 32 // TextView 33 virtual void GetDragParameters(BMessage* dragMessage, 34 BBitmap** bitmap, BPoint* point, 35 BHandler** handler); 36 void SetTextRect(BRect rect); 37 38 // InputTextView 39 virtual void RevertChanges(); 40 virtual void ApplyChanges(); 41 42 // ExpressionTextView 43 void AddKeypadLabel(const char* label); 44 45 void SetExpression(const char* expression); 46 void SetValue(BString value); 47 48 void BackSpace(); 49 void Clear(); 50 51 void AddExpressionToHistory(const char* expression); 52 void PreviousExpression(); 53 void NextExpression(); 54 55 void LoadSettings(const BMessage* archive); 56 status_t SaveSettings(BMessage* archive) const; 57 58 private: 59 CalcView* fCalcView; 60 BString fKeypadLabels; 61 62 BList fPreviousExpressions; 63 int32 fHistoryPos; 64 BString fCurrentExpression; 65 BString fCurrentValue; 66 67 bool fChangesApplied; 68 }; 69 70 #endif // EXPRESSION_TEXT_VIEW_H 71