1 /* 2 * Copyright 2009, Axel Dörfler, axeld@pinc-software.de. 3 * Distributed under the terms of the MIT License. 4 */ 5 #ifndef KEYBOARD_LAYOUT_H 6 #define KEYBOARD_LAYOUT_H 7 8 9 #include <map> 10 11 #include <Entry.h> 12 #include <ObjectList.h> 13 #include <Point.h> 14 #include <Rect.h> 15 #include <String.h> 16 17 18 enum key_shape { 19 kRectangleKeyShape, 20 kCircleKeyShape, 21 kEnterKeyShape 22 }; 23 24 struct Key { 25 int32 code; 26 int32 alternate_code[3]; 27 int32 alternate_modifier[3]; 28 key_shape shape; 29 BRect frame; 30 float second_row; 31 // this is the width of the second row of a kEnterKeyShape key 32 bool dark; 33 }; 34 35 struct Indicator { 36 int32 modifier; 37 BRect frame; 38 }; 39 40 typedef std::map<BString, BString> VariableMap; 41 42 class KeyboardLayout { 43 public: 44 KeyboardLayout(); 45 ~KeyboardLayout(); 46 47 const char* Name(); 48 49 int32 CountKeys(); 50 Key* KeyAt(int32 index); 51 52 int32 CountIndicators(); 53 Indicator* IndicatorAt(int32 index); 54 55 BRect Bounds(); 56 BSize DefaultKeySize(); 57 int32 IndexForModifier(int32 modifier); 58 59 status_t Load(const char* path); 60 status_t Load(entry_ref& ref); 61 62 void SetDefault(); 63 64 private: 65 enum parse_mode { 66 kPairs, 67 kSize, 68 kRowStart, 69 kKeyShape, 70 kKeyCodes 71 }; 72 struct parse_state { 73 parse_mode mode; 74 int32 line; 75 }; 76 77 void _FreeKeys(); 78 void _Error(const parse_state& state, 79 const char* reason, ...); 80 void _AddAlternateKeyCode(Key* key, int32 modifier, 81 int32 code); 82 bool _AddKey(const Key& key); 83 void _SkipCommentsAndSpace(parse_state& state, 84 const char*& data); 85 void _Trim(BString& string, bool stripComments); 86 bool _GetPair(const parse_state& state, 87 const char*& data, BString& name, 88 BString& value); 89 bool _AddKeyCodes(const parse_state& state, 90 BPoint& rowLeftTop, Key& key, const char* data, 91 int32& lastCount); 92 bool _GetSize(const parse_state& state, const char* data, 93 float& x, float& y, float* _secondRow = NULL); 94 bool _GetShape(const parse_state& state, 95 const char* data, Key& key); 96 const char* _Delimiter(parse_mode mode); 97 bool _GetTerm(const char*& data, const char* delimiter, 98 BString& term, bool closingBracketAllowed); 99 bool _SubstituteVariables(BString& term, 100 VariableMap& variables, BString& unknown); 101 bool _ParseTerm(const parse_state& state, 102 const char*& data, BString& term, 103 VariableMap& variables); 104 105 status_t _InitFrom(const char* data); 106 107 BString fName; 108 Key* fKeys; 109 int32 fKeyCount; 110 int32 fKeyCapacity; 111 BRect fBounds; 112 BSize fDefaultKeySize; 113 int32 fAlternateIndex[3]; 114 BObjectList<Indicator> fIndicators; 115 }; 116 117 #endif // KEYBOARD_LAYOUT_H 118