contrib/samples/ogl/ogledit/doc.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        doc.h
   3 // Purpose:     Document classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     12/07/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _OGLSAMPLE_DOC_H_
  13 #define _OGLSAMPLE_DOC_H_
  14
  15 #if defined(__GNUG__) && !defined(__APPLE__)
  16 // #pragma interface
  17 #endif
  18
  19 #include <wx/docview.h>
  20 #include <wx/cmdproc.h>
  21 #include <wx/string.h>
  22
  23 #include <wx/deprecated/setup.h>
  24 #include <wx/deprecated/wxexpr.h>
  25 #include <wx/ogl/ogl.h>
  26
  27 #if wxUSE_STD_IOSTREAM
  28  #include <iosfwd>
  29 #endif
  30
  31 /*
  32  * Override a few members for this application
  33  */
  34
  35 class MyDiagram: public wxDiagram
  36 {
  37  public:
  38   MyDiagram(void) {}
  39   bool OnShapeSave(wxExprDatabase& db, wxShape& shape, wxExpr& expr);
  40   bool OnShapeLoad(wxExprDatabase& db, wxShape& shape, wxExpr& expr);
  41 };
  42
  43 /*
  44  * A few new shape classes so we have a 1:1 mapping
  45  * between palette symbol and unique class
  46  */
  47
  48 class wxRoundedRectangleShape: public wxRectangleShape
  49 {
  50   DECLARE_DYNAMIC_CLASS(wxRoundedRectangleShape)
  51  private:
  52  public:
  53   wxRoundedRectangleShape(double w = 0.0, double h = 0.0);
  54 };
  55
  56 class wxDiamondShape: public wxPolygonShape
  57 {
  58   DECLARE_DYNAMIC_CLASS(wxDiamondShape)
  59  private:
  60  public:
  61   wxDiamondShape(double w = 0.0, double h = 0.0);
  62 };
  63
  64 /*
  65  * All shape event behaviour is routed through this handler, so we don't
  66  * have to derive from each shape class. We plug this in to each shape.
  67  */
  68
  69 class MyEvtHandler: public wxShapeEvtHandler
  70 {
  71  public:
  72   wxString label;
  73   MyEvtHandler(wxShapeEvtHandler *prev = NULL, wxShape *shape = NULL, const wxString& lab = ""):wxShapeEvtHandler(prev, shape)
  74   {
  75     label = lab;
  76   }
  77   ~MyEvtHandler(void)
  78   {
  79   }
  80   void OnLeftClick(double x, double y, int keys = 0, int attachment = 0);
  81   void OnBeginDragRight(double x, double y, int keys = 0, int attachment = 0);
  82   void OnDragRight(bool draw, double x, double y, int keys = 0, int attachment = 0);
  83   void OnEndDragRight(double x, double y, int keys = 0, int attachment = 0);
  84   void OnEndSize(double x, double y);
  85 };
  86
  87 /*
  88  * A diagram document, which contains a diagram.
  89  */
  90
  91 class DiagramDocument: public wxDocument
  92 {
  93   DECLARE_DYNAMIC_CLASS(DiagramDocument)
  94  private:
  95  public:
  96   MyDiagram diagram;
  97
  98   DiagramDocument(void);
  99   ~DiagramDocument(void);
 100
 101 #if wxUSE_STD_IOSTREAM
 102     virtual wxSTD ostream& SaveObject(wxSTD ostream& stream);
 103     virtual wxSTD istream& LoadObject(wxSTD istream& stream);
 104 #else
 105     virtual wxOutputStream& SaveObject(wxOutputStream& stream);
 106     virtual wxInputStream& LoadObject(wxInputStream& stream);
 107 #endif
 108
 109   inline wxDiagram *GetDiagram() { return &diagram; }
 110
 111   bool OnCloseDocument(void);
 112 };
 113
 114 /*
 115  * Most user interface commands are routed through this, to give us the
 116  * Undo/Redo mechanism. If you add more commands, such as changing the shape colour,
 117  * you will need to add members to 'remember' what the user applied (for 'Do') and what the
 118  * previous state was (for 'Undo').
 119  * You can have one member for each property to be changed. Assume we also have
 120  * a pointer member wxShape *shape, which is set to the shape being changed.
 121  * Let's assume we're changing the shape colour. Our member for this is shapeColour.
 122  *
 123  * - In 'Do':
 124  *   o Set a temporary variable 'temp' to the current colour for 'shape'.
 125  *   o Change the colour to the new colour.
 126  *   o Set shapeColour to the _old_ colour, 'temp'.
 127  * - In 'Undo':
 128  *   o Set a temporary variable 'temp' to the current colour for 'shape'.
 129  *   o Change the colour to shapeColour (the old colour).
 130  *   o Set shapeColour to 'temp'.
 131  *
 132  * So, as long as we have a pointer to the shape being changed,
 133  * we only need one member variable for each property.
 134  *
 135  * PROBLEM: when an Add shape command is redone, the 'shape' pointer changes.
 136  * Assume, as here, that we keep a pointer to the old shape so we reuse it
 137  * when we recreate.
 138  */
 139
 140 class DiagramCommand: public wxCommand
 141 {
 142  protected:
 143   DiagramDocument *doc;
 144   int cmd;
 145   wxShape *shape; // Pointer to the shape we're acting on
 146   wxShape *fromShape;
 147   wxShape *toShape;
 148   wxClassInfo *shapeInfo;
 149   double x;
 150   double y;
 151   bool selected;
 152   bool deleteShape;
 153
 154   // Storage for property commands
 155   wxBrush *shapeBrush;
 156   wxPen *shapePen;
 157   wxString shapeLabel;
 158  public:
 159   // Multi-purpose constructor for creating, deleting shapes
 160   DiagramCommand(char *name, int cmd, DiagramDocument *ddoc, wxClassInfo *shapeInfo = NULL,
 161      double x = 0.0, double y = 0.0, bool sel = FALSE, wxShape *theShape = NULL, wxShape *fs = NULL, wxShape *ts = NULL);
 162
 163   // Property-changing command constructors
 164   DiagramCommand(char *name, int cmd, DiagramDocument *ddoc, wxBrush *backgroundColour, wxShape *theShape);
 165   DiagramCommand(char *name, int cmd, DiagramDocument *ddoc, const wxString& lab, wxShape *theShape);
 166
 167   ~DiagramCommand(void);
 168
 169   bool Do(void);
 170   bool Undo(void);
 171
 172   inline void SetShape(wxShape *s) { shape = s; }
 173   inline wxShape *GetShape(void) { return shape; }
 174   inline wxShape *GetFromShape(void) { return fromShape; }
 175   inline wxShape *GetToShape(void) { return toShape; }
 176   inline wxClassInfo *GetShapeInfo(void) { return shapeInfo; }
 177   inline bool GetSelected(void) { return selected; }
 178
 179   void RemoveLines(wxShape *shape);
 180 };
 181
 182 #endif
 183   // _OGLSAMPLE_DOC_H_