///////////////////////////////////////////////////////////////////////////// // Name: contrib/samples/ogl/ogledit/doc.h // Purpose: Document classes // Author: Julian Smart // Modified by: // Created: 12/07/98 // RCS-ID: $Id$ // Copyright: (c) Julian Smart // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifndef _OGLSAMPLE_DOC_H_ #define _OGLSAMPLE_DOC_H_ #include "wx/docview.h" #include "wx/cmdproc.h" #include "wx/string.h" #include "wx/ogl/ogl.h" // base header of OGL, includes and adjusts wx/deprecated/setup.h #if wxUSE_PROLOGIO #include "wx/deprecated/wxexpr.h" #endif #include "wx/ogl/ogl.h" #if wxUSE_STD_IOSTREAM #include <iosfwd> #endif /* * Override a few members for this application */ class MyDiagram: public wxDiagram { public: MyDiagram(void) {} #if wxUSE_PROLOGIO bool OnShapeSave(wxExprDatabase& db, wxShape& shape, wxExpr& expr); bool OnShapeLoad(wxExprDatabase& db, wxShape& shape, wxExpr& expr); #endif }; /* * A few new shape classes so we have a 1:1 mapping * between palette symbol and unique class */ class wxRoundedRectangleShape: public wxRectangleShape { DECLARE_DYNAMIC_CLASS(wxRoundedRectangleShape) private: public: wxRoundedRectangleShape(double w = 0.0, double h = 0.0); }; class wxDiamondShape: public wxPolygonShape { DECLARE_DYNAMIC_CLASS(wxDiamondShape) private: public: wxDiamondShape(double w = 0.0, double h = 0.0); }; /* * All shape event behaviour is routed through this handler, so we don't * have to derive from each shape class. We plug this in to each shape. */ class MyEvtHandler: public wxShapeEvtHandler { public: wxString label; MyEvtHandler(wxShapeEvtHandler *prev = NULL, wxShape *shape = NULL, const wxString& lab = wxEmptyString):wxShapeEvtHandler(prev, shape) { label = lab; } ~MyEvtHandler(void) { } void OnLeftClick(double x, double y, int keys = 0, int attachment = 0); void OnBeginDragRight(double x, double y, int keys = 0, int attachment = 0); void OnDragRight(bool draw, double x, double y, int keys = 0, int attachment = 0); void OnEndDragRight(double x, double y, int keys = 0, int attachment = 0); void OnEndSize(double x, double y); }; /* * A diagram document, which contains a diagram. */ class DiagramDocument: public wxDocument { DECLARE_DYNAMIC_CLASS(DiagramDocument) private: public: MyDiagram diagram; DiagramDocument(void); ~DiagramDocument(void); #if wxUSE_STD_IOSTREAM virtual wxSTD ostream& SaveObject(wxSTD ostream& stream); virtual wxSTD istream& LoadObject(wxSTD istream& stream); #else virtual wxOutputStream& SaveObject(wxOutputStream& stream); virtual wxInputStream& LoadObject(wxInputStream& stream); #endif inline wxDiagram *GetDiagram() { return &diagram; } bool OnCloseDocument(void); }; /* * Most user interface commands are routed through this, to give us the * Undo/Redo mechanism. If you add more commands, such as changing the shape colour, * you will need to add members to 'remember' what the user applied (for 'Do') and what the * previous state was (for 'Undo'). * You can have one member for each property to be changed. Assume we also have * a pointer member wxShape *shape, which is set to the shape being changed. * Let's assume we're changing the shape colour. Our member for this is shapeColour. * * - In 'Do': * o Set a temporary variable 'temp' to the current colour for 'shape'. * o Change the colour to the new colour. * o Set shapeColour to the _old_ colour, 'temp'. * - In 'Undo': * o Set a temporary variable 'temp' to the current colour for 'shape'. * o Change the colour to shapeColour (the old colour). * o Set shapeColour to 'temp'. * * So, as long as we have a pointer to the shape being changed, * we only need one member variable for each property. * * PROBLEM: when an Add shape command is redone, the 'shape' pointer changes. * Assume, as here, that we keep a pointer to the old shape so we reuse it * when we recreate. */ class DiagramCommand: public wxCommand { protected: DiagramDocument *doc; int cmd; wxShape *shape; // Pointer to the shape we're acting on wxShape *fromShape; wxShape *toShape; wxClassInfo *shapeInfo; double x; double y; bool selected; bool deleteShape; // Storage for property commands const wxBrush *shapeBrush; wxPen *shapePen; wxString shapeLabel; public: // Multi-purpose constructor for creating, deleting shapes DiagramCommand(const wxString& name, int cmd, DiagramDocument *ddoc, wxClassInfo *shapeInfo = NULL, double x = 0.0, double y = 0.0, bool sel = false, wxShape *theShape = NULL, wxShape *fs = NULL, wxShape *ts = NULL); // Property-changing command constructors DiagramCommand(const wxString& name, int cmd, DiagramDocument *ddoc, wxBrush *backgroundColour, wxShape *theShape); DiagramCommand(const wxString& name, int cmd, DiagramDocument *ddoc, const wxString& lab, wxShape *theShape); ~DiagramCommand(void); bool Do(void); bool Undo(void); inline void SetShape(wxShape *s) { shape = s; } inline wxShape *GetShape(void) { return shape; } inline wxShape *GetFromShape(void) { return fromShape; } inline wxShape *GetToShape(void) { return toShape; } inline wxClassInfo *GetShapeInfo(void) { return shapeInfo; } inline bool GetSelected(void) { return selected; } void RemoveLines(wxShape *shape); }; #endif // _OGLSAMPLE_DOC_H_