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/*
* Experimental code to use operators for constraint specification.
* In the end, the syntax didn't look much clearer than
* the original, so abandoned.
Example:
wxConstrain(frame->panel,
( leftOf (frame->panel) = leftOf (frame),
topOf (frame->panel) = topOf (frame),
rightOf (frame->panel) = rightOf (frame),
heightOf (frame->panel) = 50 % heightOf (frame)
)
);
*/
// Operator experiments
#define wxCONSTRAINT_OP_REL 1
#define wxCONSTRAINT_OP_PERCENT 2
#define wxCONSTRAINT_OP_EDGE 3
#define wxCONSTRAINT_OP_ABS 4
#define wxCONSTRAINT_OP_AND 5
class wxConstraintOp: public wxObject
{
public:
int opType;
wxEdge edge;
wxRelationship relationship;
wxWindow *win;
int value;
int margin;
wxConstraintOp *lhs;
wxConstraintOp *rhs;
wxConstraintOp(int typ)
{
opType = typ;
edge = wxLeft;
win = NULL;
value = 0;
margin = 0;
relationship = wxSameAs;
lhs = 0; rhs = 0;
}
wxConstraintOp(const wxConstraintOp& op)
{
opType = op.opType;
edge = op.edge;
relationship = op.relationship;
win = op.win;
value = op.value;
margin = op.margin;
if (op.lhs)
lhs = new wxConstraintOp(*op.lhs);
else
lhs = NULL;
if (op.rhs)
rhs = new wxConstraintOp(*op.rhs);
else
rhs = NULL;
}
~wxConstraintOp(void)
{
if (lhs)
delete lhs;
if (rhs)
delete rhs;
}
wxConstraintOp operator = (const wxConstraintOp& arg2);
wxConstraintOp operator = (const int value);
friend wxConstraintOp operator % (const int perCent, const wxConstraintOp& arg2);
friend wxConstraintOp operator + (wxConstraintOp& arg1, int margin);
friend wxConstraintOp operator - (wxConstraintOp& arg1, int margin);
friend wxConstraintOp operator , (const wxConstraintOp& arg1, const wxConstraintOp& arg2);
};
wxConstraintOp leftOf(wxWindow *win)
{
wxConstraintOp thing(wxCONSTRAINT_OP_EDGE);
thing.win = win;
thing.edge = wxLeft;
return thing;
}
wxConstraintOp topOf(wxWindow *win)
{
wxConstraintOp thing(wxCONSTRAINT_OP_EDGE);
thing.win = win;
thing.edge = wxTop;
return thing;
}
wxConstraintOp widthOf(wxWindow *win)
{
wxConstraintOp thing(wxCONSTRAINT_OP_EDGE);
thing.win = win;
thing.edge = wxWidth;
return thing;
}
wxConstraintOp wxConstraintOp::operator = (const wxConstraintOp& arg2)
{
wxConstraintOp op3(wxCONSTRAINT_OP_REL);
op3.relationship = wxPercentOf;
op3.value = 100;
if ((op3.relationship == wxPercentOf) && (op3.value > 0))
op3.value = this->value;
op3.lhs = new wxConstraintOp(*this);
op3.rhs = new wxConstraintOp(arg2);
return op3;
}
wxConstraintOp wxConstraintOp::operator = (const int value)
{
wxConstraintOp op3(wxCONSTRAINT_OP_REL);
op3.relationship = wxAbsolute;
op3.lhs = new wxConstraintOp(*this);
op3.rhs = new wxConstraintOp(wxCONSTRAINT_OP_ABS);
op3.value = value;
return op3;
}
wxConstraintOp operator % (const int perCent, const wxConstraintOp& arg2)
{
wxConstraintOp op3(arg2);
op3.opType = wxCONSTRAINT_OP_EDGE;
op3.value = perCent;
if (op3.value > 0)
op3.value = arg2.value;
return op3;
}
wxConstraintOp operator + (wxConstraintOp& arg1, int margin)
{
wxConstraintOp op3(arg1);
op3.margin = margin;
return op3;
}
wxConstraintOp operator - (wxConstraintOp& arg1, int margin)
{
wxConstraintOp op3(arg1);
op3.margin = - margin;
return op3;
}
wxConstraintOp operator , (const wxConstraintOp& arg1, const wxConstraintOp& arg2)
{
wxConstraintOp op3(wxCONSTRAINT_OP_AND);
op3.lhs = new wxConstraintOp(arg1);
op3.rhs = new wxConstraintOp(arg2);
return op3;
}
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