projects / wxWidgets.git / blame
| Commit | Line | Data |
|---|---|---|
| c801d85f KB |
1 | /* |
| 2 | * Experimental code to use operators for constraint specification. | |
| 3 | * In the end, the syntax didn't look much clearer than | |
| 4 | * the original, so abandoned. | |
| 5 | ||
| 6 | Example: | |
| 7 | ||
| 8 | wxConstrain(frame->panel, | |
| 9 | ||
| 10 | ( leftOf (frame->panel) = leftOf (frame), | |
| 11 | topOf (frame->panel) = topOf (frame), | |
| 12 | rightOf (frame->panel) = rightOf (frame), | |
| 13 | heightOf (frame->panel) = 50 % heightOf (frame) | |
| 14 | ) | |
| 15 | ); | |
| 16 | */ | |
| 17 | ||
| 18 | // Operator experiments | |
| 19 | #define wxCONSTRAINT_OP_REL 1 | |
| 20 | #define wxCONSTRAINT_OP_PERCENT 2 | |
| 21 | #define wxCONSTRAINT_OP_EDGE 3 | |
| 22 | #define wxCONSTRAINT_OP_ABS 4 | |
| 23 | #define wxCONSTRAINT_OP_AND 5 | |
| 24 | ||
| 25 | class wxConstraintOp: public wxObject | |
| 26 | { | |
| 27 | public: | |
| 28 | int opType; | |
| 29 | wxEdge edge; | |
| 30 | wxRelationship relationship; | |
| 31 | wxWindow *win; | |
| 32 | int value; | |
| 33 | int margin; | |
| 34 | wxConstraintOp *lhs; | |
| 35 | wxConstraintOp *rhs; | |
| 36 | wxConstraintOp(int typ) | |
| 37 | { | |
| 38 | opType = typ; | |
| 39 | edge = wxLeft; | |
| 40 | win = NULL; | |
| 41 | value = 0; | |
| 42 | margin = 0; | |
| 43 | relationship = wxSameAs; | |
| 44 | lhs = 0; rhs = 0; | |
| 45 | } | |
| 46 | wxConstraintOp(const wxConstraintOp& op) | |
| 47 | { | |
| 48 | opType = op.opType; | |
| 49 | edge = op.edge; | |
| 50 | relationship = op.relationship; | |
| 51 | win = op.win; | |
| 52 | value = op.value; | |
| 53 | margin = op.margin; | |
| 54 | if (op.lhs) | |
| 55 | lhs = new wxConstraintOp(*op.lhs); | |
| 56 | else | |
| 57 | lhs = NULL; | |
| 58 | if (op.rhs) | |
| 59 | rhs = new wxConstraintOp(*op.rhs); | |
| 60 | else | |
| 61 | rhs = NULL; | |
| 62 | } | |
| 63 | ~wxConstraintOp(void) | |
| 64 | { | |
| 65 | if (lhs) | |
| 66 | delete lhs; | |
| 67 | if (rhs) | |
| 68 | delete rhs; | |
| 69 | } | |
| 70 | ||
| 71 | wxConstraintOp operator = (const wxConstraintOp& arg2); | |
| 72 | wxConstraintOp operator = (const int value); | |
| 73 | ||
| 74 | friend wxConstraintOp operator % (const int perCent, const wxConstraintOp& arg2); | |
| 75 | friend wxConstraintOp operator + (wxConstraintOp& arg1, int margin); | |
| 76 | friend wxConstraintOp operator - (wxConstraintOp& arg1, int margin); | |
| 77 | friend wxConstraintOp operator , (const wxConstraintOp& arg1, const wxConstraintOp& arg2); | |
| 78 | }; | |
| 79 | ||
| 80 | wxConstraintOp leftOf(wxWindow *win) | |
| 81 | { | |
| 82 | wxConstraintOp thing(wxCONSTRAINT_OP_EDGE); | |
| 83 | thing.win = win; | |
| 84 | thing.edge = wxLeft; | |
| 85 | return thing; | |
| 86 | } | |
| 87 | ||
| 88 | wxConstraintOp topOf(wxWindow *win) | |
| 89 | { | |
| 90 | wxConstraintOp thing(wxCONSTRAINT_OP_EDGE); | |
| 91 | thing.win = win; | |
| 92 | thing.edge = wxTop; | |
| 93 | return thing; | |
| 94 | } | |
| 95 | ||
| 96 | wxConstraintOp widthOf(wxWindow *win) | |
| 97 | { | |
| 98 | wxConstraintOp thing(wxCONSTRAINT_OP_EDGE); | |
| 99 | thing.win = win; | |
| 100 | thing.edge = wxWidth; | |
| 101 | return thing; | |
| 102 | } | |
| 103 | ||
| 104 | wxConstraintOp wxConstraintOp::operator = (const wxConstraintOp& arg2) | |
| 105 | { | |
| 106 | wxConstraintOp op3(wxCONSTRAINT_OP_REL); | |
| 107 | op3.relationship = wxPercentOf; | |
| 108 | op3.value = 100; | |
| 109 | if ((op3.relationship == wxPercentOf) && (op3.value > 0)) | |
| 110 | op3.value = this->value; | |
| 111 | op3.lhs = new wxConstraintOp(*this); | |
| 112 | op3.rhs = new wxConstraintOp(arg2); | |
| 113 | ||
| 114 | return op3; | |
| 115 | } | |
| 116 | ||
| 117 | wxConstraintOp wxConstraintOp::operator = (const int value) | |
| 118 | { | |
| 119 | wxConstraintOp op3(wxCONSTRAINT_OP_REL); | |
| 120 | op3.relationship = wxAbsolute; | |
| 121 | ||
| 122 | op3.lhs = new wxConstraintOp(*this); | |
| 123 | op3.rhs = new wxConstraintOp(wxCONSTRAINT_OP_ABS); | |
| 124 | op3.value = value; | |
| 125 | ||
| 126 | return op3; | |
| 127 | } | |
| 128 | ||
| 129 | wxConstraintOp operator % (const int perCent, const wxConstraintOp& arg2) | |
| 130 | { | |
| 131 | wxConstraintOp op3(arg2); | |
| 132 | op3.opType = wxCONSTRAINT_OP_EDGE; | |
| 133 | op3.value = perCent; | |
| 134 | if (op3.value > 0) | |
| 135 | op3.value = arg2.value; | |
| 136 | ||
| 137 | return op3; | |
| 138 | } | |
| 139 | ||
| 140 | wxConstraintOp operator + (wxConstraintOp& arg1, int margin) | |
| 141 | { | |
| 142 | wxConstraintOp op3(arg1); | |
| 143 | op3.margin = margin; | |
| 144 | return op3; | |
| 145 | } | |
| 146 | ||
| 147 | wxConstraintOp operator - (wxConstraintOp& arg1, int margin) | |
| 148 | { | |
| 149 | wxConstraintOp op3(arg1); | |
| 150 | op3.margin = - margin; | |
| 151 | return op3; | |
| 152 | } | |
| 153 | ||
| 154 | wxConstraintOp operator , (const wxConstraintOp& arg1, const wxConstraintOp& arg2) | |
| 155 | { | |
| 156 | wxConstraintOp op3(wxCONSTRAINT_OP_AND); | |
| 157 | op3.lhs = new wxConstraintOp(arg1); | |
| 158 | op3.rhs = new wxConstraintOp(arg2); | |
| 159 | ||
| 160 | return op3; | |
| 161 | } |