1 /* 2 * Copyright 2006 Haiku, Inc. All Rights Reserved. 3 * Copyright 1997, 1998 R3 Software Ltd. All Rights Reserved. 4 * Distributed under the terms of the MIT License. 5 * 6 * Authors: 7 * Stephan Aßmus <superstippi@gmx.de> 8 * John Scipione <jscipione@gmail.com> 9 * Timothy Wayper <timmy@wunderbear.com> 10 */ 11 #ifndef _CALC_VIEW_H 12 #define _CALC_VIEW_H 13 14 15 #include <View.h> 16 17 18 enum { 19 MSG_OPTIONS_AUTO_NUM_LOCK = 'oanl', 20 MSG_OPTIONS_AUDIO_FEEDBACK = 'oafb', 21 MSG_OPTIONS_ANGLE_MODE_RADIAN = 'oamr', 22 MSG_OPTIONS_ANGLE_MODE_DEGREE = 'oamd', 23 MSG_OPTIONS_KEYPAD_MODE_COMPACT = 'okmc', 24 MSG_OPTIONS_KEYPAD_MODE_BASIC = 'okmb', 25 MSG_OPTIONS_KEYPAD_MODE_SCIENTIFIC = 'okms', 26 MSG_UNFLASH_KEY = 'uflk' 27 }; 28 29 static const float kMinimumWidthBasic = 130.0f; 30 static const float kMaximumWidthBasic = 400.0f; 31 static const float kMinimumHeightBasic = 130.0f; 32 static const float kMaximumHeightBasic = 400.0f; 33 34 class BString; 35 class BMenuItem; 36 class BMessage; 37 class BPopUpMenu; 38 class CalcOptions; 39 class CalcOptionsWindow; 40 class ExpressionTextView; 41 42 _EXPORT 43 class CalcView : public BView { 44 public: 45 46 static CalcView* Instantiate(BMessage* archive); 47 48 49 CalcView(BRect frame, 50 rgb_color rgbBaseColor, 51 BMessage* settings); 52 CalcView(BMessage* archive); 53 virtual ~CalcView(); 54 55 virtual void AttachedToWindow(); 56 virtual void MessageReceived(BMessage* message); 57 virtual void Draw(BRect updateRect); 58 virtual void MouseDown(BPoint point); 59 virtual void MouseUp(BPoint point); 60 virtual void KeyDown(const char* bytes, int32 numBytes); 61 virtual void MakeFocus(bool focused = true); 62 virtual void ResizeTo(float width, float height); 63 virtual void FrameResized(float width, float height); 64 65 // Archive this view. 66 virtual status_t Archive(BMessage* archive, bool deep) const; 67 68 // Cut contents of view to system clipboard. 69 void Cut(); 70 71 // Copy contents of view to system clipboard. 72 void Copy(); 73 74 // Paste contents of system clipboard to view. 75 void Paste(BMessage* message); 76 77 // Save current settings 78 status_t SaveSettings(BMessage* archive) const; 79 80 // Evaluate the expression 81 void Evaluate(); 82 83 // Flash the key on the keypad 84 void FlashKey(const char* bytes, int32 numBytes); 85 86 // Toggle whether or not the Num Lock key starts on 87 void ToggleAutoNumlock(void); 88 89 // Toggle whether or not to provide audio feedback 90 // (option currently disabled) 91 void ToggleAudioFeedback(void); 92 93 // Set the angle mode to degrees or radians 94 void SetDegreeMode(bool degrees); 95 96 // Set the keypad mode 97 void SetKeypadMode(uint8 mode); 98 99 private: 100 void _Init(BMessage* settings); 101 status_t _LoadSettings(BMessage* archive); 102 void _ParseCalcDesc(const char* keypadDescription); 103 104 void _PressKey(int key); 105 void _PressKey(const char* label); 106 int32 _KeyForLabel(const char* label) const; 107 void _FlashKey(int32 key, uint32 flashFlags); 108 void _AudioFeedback(bool inBackGround); 109 110 void _Colorize(); 111 112 void _CreatePopUpMenu(bool addKeypadModeMenuItems); 113 114 BRect _ExpressionRect() const; 115 BRect _KeypadRect() const; 116 117 void _MarkKeypadItems(uint8 mode); 118 119 void _FetchAppIcon(BBitmap* into); 120 121 // grid dimensions 122 int16 fColumns; 123 int16 fRows; 124 125 // color scheme 126 rgb_color fBaseColor; 127 rgb_color fLightColor; 128 rgb_color fDarkColor; 129 rgb_color fButtonTextColor; 130 rgb_color fExpressionBGColor; 131 rgb_color fExpressionTextColor; 132 133 // view dimensions 134 float fWidth; 135 float fHeight; 136 137 // keypad grid 138 struct CalcKey; 139 140 char* fKeypadDescription; 141 CalcKey* fKeypad; 142 143 // icon 144 BBitmap* fCalcIcon; 145 146 // expression 147 ExpressionTextView* fExpressionTextView; 148 149 // pop-up context menu. 150 BPopUpMenu* fPopUpMenu; 151 BMenuItem* fAutoNumlockItem; 152 BMenuItem* fAudioFeedbackItem; 153 154 BMenuItem* fAngleModeRadianItem; 155 BMenuItem* fAngleModeDegreeItem; 156 157 BMenuItem* fKeypadModeCompactItem; 158 BMenuItem* fKeypadModeBasicItem; 159 BMenuItem* fKeypadModeScientificItem; 160 161 // calculator options. 162 CalcOptions* fOptions; 163 }; 164 165 #endif // _CALC_VIEW_H 166