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/////////////////////////////////////////////////////////////////////////////
// Name: layout.h
// Purpose: interface of layout constraints classes
// Author: wxWidgets team
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
enum wxEdge
{
wxLeft, wxTop, wxRight, wxBottom, wxWidth, wxHeight,
wxCentre, wxCenter = wxCentre, wxCentreX, wxCentreY
};
enum wxRelationship
{
wxUnconstrained,
wxAsIs,
wxPercentOf,
wxAbove,
wxBelow,
wxLeftOf,
wxRightOf,
wxSameAs,
wxAbsolute
};
const int wxLAYOUT_DEFAULT_MARGIN = 0;
// ----------------------------------------------------------------------------
// wxIndividualLayoutConstraint: a constraint on window position
// ----------------------------------------------------------------------------
class wxIndividualLayoutConstraint : public wxObject
{
public:
wxIndividualLayoutConstraint();
// note that default copy ctor and assignment operators are ok
virtual ~wxIndividualLayoutConstraint();
void Set(wxRelationship rel,
wxWindow *otherW,
wxEdge otherE,
int val = 0,
int margin = wxLAYOUT_DEFAULT_MARGIN);
//
// Sibling relationships
//
void LeftOf(wxWindow *sibling, int margin = wxLAYOUT_DEFAULT_MARGIN);
void RightOf(wxWindow *sibling, int margin = wxLAYOUT_DEFAULT_MARGIN);
void Above(wxWindow *sibling, int margin = wxLAYOUT_DEFAULT_MARGIN);
void Below(wxWindow *sibling, int margin = wxLAYOUT_DEFAULT_MARGIN);
//
// 'Same edge' alignment
//
void SameAs(wxWindow *otherW, wxEdge edge, int margin = wxLAYOUT_DEFAULT_MARGIN);
// The edge is a percentage of the other window's edge
void PercentOf(wxWindow *otherW, wxEdge wh, int per);
//
// Edge has absolute value
//
void Absolute(int val);
//
// Dimension is unconstrained
//
void Unconstrained();
//
// Dimension is 'as is' (use current size settings)
//
void AsIs();
//
// Accessors
//
wxWindow *GetOtherWindow();
wxEdge GetMyEdge() const;
void SetEdge(wxEdge which);
void SetValue(int v);
int GetMargin();
void SetMargin(int m);
int GetValue() const;
int GetPercent() const;
int GetOtherEdge() const;
bool GetDone() const;
void SetDone(bool d);
wxRelationship GetRelationship();
void SetRelationship(wxRelationship r);
// Reset constraint if it mentions otherWin
bool ResetIfWin(wxWindow *otherW);
// Try to satisfy constraint
bool SatisfyConstraint(wxLayoutConstraints *constraints, wxWindow *win);
// Get the value of this edge or dimension, or if this
// is not determinable, -1.
int GetEdge(wxEdge which, wxWindow *thisWin, wxWindow *other) const;
};
// ----------------------------------------------------------------------------
// wxLayoutConstraints: the complete set of constraints for a window
// ----------------------------------------------------------------------------
class wxLayoutConstraints : public wxObject
{
public:
// Edge constraints
wxIndividualLayoutConstraint left;
wxIndividualLayoutConstraint top;
wxIndividualLayoutConstraint right;
wxIndividualLayoutConstraint bottom;
// Size constraints
wxIndividualLayoutConstraint width;
wxIndividualLayoutConstraint height;
// Centre constraints
wxIndividualLayoutConstraint centreX;
wxIndividualLayoutConstraint centreY;
wxLayoutConstraints();
// note that default copy ctor and assignment operators are ok
virtual ~wxLayoutConstraints();
bool SatisfyConstraints(wxWindow *win, int *noChanges);
bool AreSatisfied() const;
};
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