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Commit	Line	Data
	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	}