1 /* 2 * Copyright 2006-2013, 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 * Philippe Saint-Pierre, stpere@gmail.com 9 * John Scipione, jscipione@gmail.com 10 * Timothy Wayper, timmy@wunderbear.com 11 */ 12 #ifndef _CALC_VIEW_H 13 #define _CALC_VIEW_H 14 15 16 #include <View.h> 17 18 19 enum { 20 MSG_OPTIONS_AUTO_NUM_LOCK = 'oanl', 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 BMessageRunner; 38 class BPopUpMenu; 39 struct CalcOptions; 40 class CalcOptionsWindow; 41 class ExpressionTextView; 42 43 _EXPORT 44 class CalcView : public BView { 45 public: 46 47 static CalcView* Instantiate(BMessage* archive); 48 49 50 CalcView(BRect frame, 51 rgb_color rgbBaseColor, 52 BMessage* settings); 53 CalcView(BMessage* archive); 54 virtual ~CalcView(); 55 56 virtual void AttachedToWindow(); 57 virtual void MessageReceived(BMessage* message); 58 virtual void Draw(BRect updateRect); 59 virtual void MouseDown(BPoint point); 60 virtual void MouseUp(BPoint point); 61 virtual void KeyDown(const char* bytes, int32 numBytes); 62 virtual void MakeFocus(bool focused = true); 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 // Set the angle mode to degrees or radians 90 void SetDegreeMode(bool degrees); 91 92 // Set the keypad mode 93 void SetKeypadMode(uint8 mode); 94 95 private: 96 static status_t _EvaluateThread(void* data); 97 void _Init(BMessage* settings); 98 status_t _LoadSettings(BMessage* archive); 99 void _ParseCalcDesc(const char** keypadDescription); 100 101 void _PressKey(int key); 102 void _PressKey(const char* label); 103 int32 _KeyForLabel(const char* label) const; 104 void _FlashKey(int32 key, uint32 flashFlags); 105 106 void _Colorize(); 107 108 void _CreatePopUpMenu(bool addKeypadModeMenuItems); 109 110 BRect _ExpressionRect() const; 111 BRect _KeypadRect() const; 112 113 void _MarkKeypadItems(uint8 mode); 114 115 void _FetchAppIcon(BBitmap* into); 116 bool _IsEmbedded(); 117 118 void _SetEnabled(bool enable); 119 120 // grid dimensions 121 int16 fColumns; 122 int16 fRows; 123 124 // color scheme 125 rgb_color fBaseColor; 126 rgb_color fLightColor; 127 rgb_color fDarkColor; 128 rgb_color fButtonTextColor; 129 rgb_color fExpressionBGColor; 130 rgb_color fExpressionTextColor; 131 132 bool fHasCustomBaseColor; 133 134 // view dimensions 135 float fWidth; 136 float fHeight; 137 138 // keypad grid 139 struct CalcKey; 140 141 const char** fKeypadDescription; 142 CalcKey* fKeypad; 143 144 // icon 145 BBitmap* fCalcIcon; 146 147 // expression 148 ExpressionTextView* fExpressionTextView; 149 150 // pop-up context menu. 151 BPopUpMenu* fPopUpMenu; 152 BMenuItem* fAutoNumlockItem; 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 thread_id fEvaluateThread; 165 BMessageRunner* fEvaluateMessageRunner; 166 sem_id fEvaluateSemaphore; 167 bool fEnabled; 168 }; 169 170 #endif // _CALC_VIEW_H 171