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
  25 #if wxUSE_PROLOGIO
  26 #include <wx/deprecated/wxexpr.h>
  27 #endif
  28
  29 #include <wx/ogl/ogl.h>
  30
  31 #if wxUSE_STD_IOSTREAM
  32  #include <iosfwd>
  33 #endif
  34
  35 /*
  36  * Override a few members for this application
  37  */
  38
  39 class MyDiagram: public wxDiagram
  40 {
  41  public:
  42   MyDiagram(void) {}
  43 #if wxUSE_PROLOGIO
  44   bool OnShapeSave(wxExprDatabase& db, wxShape& shape, wxExpr& expr);
  45   bool OnShapeLoad(wxExprDatabase& db, wxShape& shape, wxExpr& expr);
  46 #endif
  47 };
  48
  49 /*
  50  * A few new shape classes so we have a 1:1 mapping
  51  * between palette symbol and unique class
  52  */
  53
  54 class wxRoundedRectangleShape: public wxRectangleShape
  55 {
  56   DECLARE_DYNAMIC_CLASS(wxRoundedRectangleShape)
  57  private:
  58  public:
  59   wxRoundedRectangleShape(double w = 0.0, double h = 0.0);
  60 };
  61
  62 class wxDiamondShape: public wxPolygonShape
  63 {
  64   DECLARE_DYNAMIC_CLASS(wxDiamondShape)
  65  private:
  66  public:
  67   wxDiamondShape(double w = 0.0, double h = 0.0);
  68 };
  69
  70 /*
  71  * All shape event behaviour is routed through this handler, so we don't
  72  * have to derive from each shape class. We plug this in to each shape.
  73  */
  74
  75 class MyEvtHandler: public wxShapeEvtHandler
  76 {
  77  public:
  78   wxString label;
  79   MyEvtHandler(wxShapeEvtHandler *prev = NULL, wxShape *shape = NULL, const wxString& lab = wxEmptyString):wxShapeEvtHandler(prev, shape)
  80   {
  81     label = lab;
  82   }
  83   ~MyEvtHandler(void)
  84   {
  85   }
  86   void OnLeftClick(double x, double y, int keys = 0, int attachment = 0);
  87   void OnBeginDragRight(double x, double y, int keys = 0, int attachment = 0);
  88   void OnDragRight(bool draw, double x, double y, int keys = 0, int attachment = 0);
  89   void OnEndDragRight(double x, double y, int keys = 0, int attachment = 0);
  90   void OnEndSize(double x, double y);
  91 };
  92
  93 /*
  94  * A diagram document, which contains a diagram.
  95  */
  96
  97 class DiagramDocument: public wxDocument
  98 {
  99   DECLARE_DYNAMIC_CLASS(DiagramDocument)
 100  private:
 101  public:
 102   MyDiagram diagram;
 103
 104   DiagramDocument(void);
 105   ~DiagramDocument(void);
 106
 107 #if wxUSE_STD_IOSTREAM
 108     virtual wxSTD ostream& SaveObject(wxSTD ostream& stream);
 109     virtual wxSTD istream& LoadObject(wxSTD istream& stream);
 110 #else
 111     virtual wxOutputStream& SaveObject(wxOutputStream& stream);
 112     virtual wxInputStream& LoadObject(wxInputStream& stream);
 113 #endif
 114
 115   inline wxDiagram *GetDiagram() { return &diagram; }
 116
 117   bool OnCloseDocument(void);
 118 };
 119
 120 /*
 121  * Most user interface commands are routed through this, to give us the
 122  * Undo/Redo mechanism. If you add more commands, such as changing the shape colour,
 123  * you will need to add members to 'remember' what the user applied (for 'Do') and what the
 124  * previous state was (for 'Undo').
 125  * You can have one member for each property to be changed. Assume we also have
 126  * a pointer member wxShape *shape, which is set to the shape being changed.
 127  * Let's assume we're changing the shape colour. Our member for this is shapeColour.
 128  *
 129  * - In 'Do':
 130  *   o Set a temporary variable 'temp' to the current colour for 'shape'.
 131  *   o Change the colour to the new colour.
 132  *   o Set shapeColour to the _old_ colour, 'temp'.
 133  * - In 'Undo':
 134  *   o Set a temporary variable 'temp' to the current colour for 'shape'.
 135  *   o Change the colour to shapeColour (the old colour).
 136  *   o Set shapeColour to 'temp'.
 137  *
 138  * So, as long as we have a pointer to the shape being changed,
 139  * we only need one member variable for each property.
 140  *
 141  * PROBLEM: when an Add shape command is redone, the 'shape' pointer changes.
 142  * Assume, as here, that we keep a pointer to the old shape so we reuse it
 143  * when we recreate.
 144  */
 145
 146 class DiagramCommand: public wxCommand
 147 {
 148  protected:
 149   DiagramDocument *doc;
 150   int cmd;
 151   wxShape *shape; // Pointer to the shape we're acting on
 152   wxShape *fromShape;
 153   wxShape *toShape;
 154   wxClassInfo *shapeInfo;
 155   double x;
 156   double y;
 157   bool selected;
 158   bool deleteShape;
 159
 160   // Storage for property commands
 161   wxBrush *shapeBrush;
 162   wxPen *shapePen;
 163   wxString shapeLabel;
 164  public:
 165   // Multi-purpose constructor for creating, deleting shapes
 166   DiagramCommand(const wxString& name, int cmd, DiagramDocument *ddoc, wxClassInfo *shapeInfo = NULL,
 167      double x = 0.0, double y = 0.0, bool sel = FALSE, wxShape *theShape = NULL, wxShape *fs = NULL, wxShape *ts = NULL);
 168
 169   // Property-changing command constructors
 170   DiagramCommand(const wxString& name, int cmd, DiagramDocument *ddoc, wxBrush *backgroundColour, wxShape *theShape);
 171   DiagramCommand(const wxString& name, int cmd, DiagramDocument *ddoc, const wxString& lab, wxShape *theShape);
 172
 173   ~DiagramCommand(void);
 174
 175   bool Do(void);
 176   bool Undo(void);
 177
 178   inline void SetShape(wxShape *s) { shape = s; }
 179   inline wxShape *GetShape(void) { return shape; }
 180   inline wxShape *GetFromShape(void) { return fromShape; }
 181   inline wxShape *GetToShape(void) { return toShape; }
 182   inline wxClassInfo *GetShapeInfo(void) { return shapeInfo; }
 183   inline bool GetSelected(void) { return selected; }
 184
 185   void RemoveLines(wxShape *shape);
 186 };
 187
 188 #endif
 189   // _OGLSAMPLE_DOC_H_