utils/ogl/src/composit.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        composit.h
   3 // Purpose:     wxCompositeShape
   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 _OGL_COMPOSIT_H_
  13 #define _OGL_COMPOSIT_H_
  14
  15 #ifdef __GNUG__
  16 #pragma interface "composit.h"
  17 #endif
  18
  19 class wxDivisionShape;
  20 class wxOGLConstraint;
  21
  22 /*
  23  * A composite object is an invisible rectangle surrounding all children
  24  *
  25  */
  26
  27 class wxCompositeShape: public wxRectangleShape
  28 {
  29  DECLARE_DYNAMIC_CLASS(wxCompositeShape)
  30 public:
  31
  32   wxCompositeShape();
  33   ~wxCompositeShape();
  34
  35   void OnDraw(wxDC& dc);
  36   void OnDrawContents(wxDC& dc);
  37   void OnErase(wxDC& dc);
  38   bool OnMovePre(wxDC& dc, double x, double y, double oldX, double oldY, bool display = TRUE);
  39   void OnDragLeft(bool draw, double x, double y, int keys, int attachment = 0);
  40   void OnBeginDragLeft(double x, double y, int keys, int attachment = 0);
  41   void OnEndDragLeft(double x, double y, int keys, int attachment = 0);
  42
  43   void OnRightClick(double x, double y, int keys, int attachment = 0);
  44
  45   void SetSize(double w, double h, bool recursive = TRUE);
  46
  47   // Returns TRUE if it settled down
  48   bool Recompute();
  49
  50   // New members
  51   void AddChild(wxShape *child, wxShape *addAfter = NULL);
  52   void RemoveChild(wxShape *child);
  53
  54   wxOGLConstraint *AddConstraint(wxOGLConstraint *constraint);
  55   wxOGLConstraint *AddConstraint(int type, wxShape *constraining, wxList& constrained);
  56   wxOGLConstraint *AddConstraint(int type, wxShape *constraining, wxShape *constrained);
  57
  58   void DeleteConstraint(wxOGLConstraint *constraint);
  59
  60   // Delete constraints that involve this child.
  61   void DeleteConstraintsInvolvingChild(wxShape *child);
  62
  63   // Remove the image from any constraints involving it, but DON'T
  64   // remove any constraints.
  65   void RemoveChildFromConstraints(wxShape *child);
  66
  67   // Find constraint, also returning actual composite the constraint was in,
  68   // in case it had to find it recursively.
  69   wxOGLConstraint *FindConstraint(long id, wxCompositeShape **actualComposite = NULL);
  70
  71   // Returns TRUE if something changed
  72   bool Constrain();
  73
  74   // Make this composite into a container by creating one wxDivisionShape
  75   void MakeContainer();
  76
  77   // Calculates size and position of composite object based on children
  78   void CalculateSize();
  79
  80 #ifdef PROLOGIO
  81   void WriteAttributes(wxExpr *clause);
  82   void ReadAttributes(wxExpr *clause);
  83   // In case the object has constraints it needs to read in in a different pass
  84   void ReadConstraints(wxExpr *clause, wxExprDatabase *database);
  85 #endif
  86   // Does the copying for this object
  87   void Copy(wxShape& copy);
  88
  89   virtual wxDivisionShape *OnCreateDivision();
  90
  91   // Finds the image used to visualize a container. This is any child
  92   // of the composite that is not in the divisions list.
  93   wxShape *FindContainerImage();
  94
  95   // Returns TRUE if division is a descendant of this container
  96   bool ContainsDivision(wxDivisionShape *division);
  97
  98   inline wxList& GetDivisions() const { return (wxList&) m_divisions; }
  99   inline wxList& GetConstraints() const { return (wxList&) m_constraints; }
 100
 101 protected:
 102   double             m_oldX;
 103   double             m_oldY;
 104   wxList            m_constraints;
 105   wxList            m_divisions; // In case it's a container
 106 };
 107
 108 /*
 109  * A division object is a composite with special properties,
 110  * to be used for containment. It's a subdivision of a container.
 111  * A containing node image consists of a composite with a main child shape
 112  * such as rounded rectangle, plus a list of division objects.
 113  * It needs to be a composite because a division contains pieces
 114  * of diagram.
 115  * NOTE a container has at least one wxDivisionShape for consistency.
 116  * This can be subdivided, so it turns into two objects, then each of
 117  * these can be subdivided, etc.
 118  */
 119 #define DIVISION_SIDE_NONE      0
 120 #define DIVISION_SIDE_LEFT      1
 121 #define DIVISION_SIDE_TOP       2
 122 #define DIVISION_SIDE_RIGHT     3
 123 #define DIVISION_SIDE_BOTTOM    4
 124
 125 class wxDivisionShape: public wxCompositeShape
 126 {
 127  DECLARE_DYNAMIC_CLASS(wxDivisionShape)
 128  public:
 129
 130   wxDivisionShape();
 131   ~wxDivisionShape();
 132
 133   void OnDraw(wxDC& dc);
 134   void OnDrawContents(wxDC& dc);
 135   bool OnMovePre(wxDC& dc, double x, double y, double oldX, double oldY, bool display = TRUE);
 136   void OnDragLeft(bool draw, double x, double y, int keys, int attachment = 0);
 137   void OnBeginDragLeft(double x, double y, int keys, int attachment = 0);
 138   void OnEndDragLeft(double x, double y, int keys, int attachment = 0);
 139
 140   void OnRightClick(double x, double y, int keys = 0, int attachment = 0);
 141
 142   // Don't want this kind of composite to resize its subdiagrams, so
 143   // override composite's SetSize.
 144   void SetSize(double w, double h, bool recursive = TRUE);
 145
 146   // Similarly for calculating size: it's fixed at whatever SetSize
 147   // set it to, not in terms of children.
 148   void CalculateSize();
 149
 150   void MakeControlPoints();
 151   void ResetControlPoints();
 152   void MakeMandatoryControlPoints();
 153   void ResetMandatoryControlPoints();
 154
 155 #ifdef PROLOGIO
 156   void WriteAttributes(wxExpr *clause);
 157   void ReadAttributes(wxExpr *clause);
 158 #endif
 159   // Does the copying for this object
 160   void Copy(wxShape& copy);
 161
 162   // Divide horizontally (wxHORIZONTAL) or vertically (wxVERTICAL)
 163   bool Divide(int direction);
 164
 165   // Resize adjoining divisions at the given side. If test is TRUE,
 166   // just see whether it's possible for each adjoining region,
 167   // returning FALSE if it's not.
 168   bool ResizeAdjoining(int side, double newPos, bool test);
 169
 170   // Adjust a side, returning FALSE if it's not physically possible.
 171   bool AdjustLeft(double left, bool test);
 172   bool AdjustTop(double top, bool test);
 173   bool AdjustRight(double right, bool test);
 174   bool AdjustBottom(double bottom, bool test);
 175
 176   // Edit style of left or top side
 177   void EditEdge(int side);
 178
 179   // Popup menu
 180   void PopupMenu(double x, double y);
 181
 182   inline void SetLeftSide(wxDivisionShape *shape) { m_leftSide = shape; }
 183   inline void SetTopSide(wxDivisionShape *shape) { m_topSide = shape; }
 184   inline void SetRightSide(wxDivisionShape *shape) { m_rightSide = shape; }
 185   inline void SetBottomSide(wxDivisionShape *shape) { m_bottomSide = shape; }
 186   inline wxDivisionShape *GetLeftSide() const { return m_leftSide; }
 187   inline wxDivisionShape *GetTopSide() const { return m_topSide; }
 188   inline wxDivisionShape *GetRightSide() const { return m_rightSide; }
 189   inline wxDivisionShape *GetBottomSide() const { return m_bottomSide; }
 190
 191   inline void SetHandleSide(int side) { m_handleSide = side; }
 192   inline int GetHandleSide() const { return m_handleSide; }
 193
 194   inline void SetLeftSidePen(wxPen *pen) { m_leftSidePen = pen; }
 195   inline wxPen *GetLeftSidePen() const { return m_leftSidePen; }
 196   inline void SetTopSidePen(wxPen *pen) { m_topSidePen = pen; }
 197   inline wxPen *GetTopSidePen() const { return m_topSidePen; }
 198
 199   void SetLeftSideColour(const wxString& colour);
 200   void SetTopSideColour(const wxString& colour);
 201   void SetLeftSideStyle(const wxString& style);
 202   void SetTopSideStyle(const wxString& style);
 203
 204   inline wxString GetLeftSideColour() const { return m_leftSideColour; }
 205   inline wxString GetTopSideColour() const { return m_topSideColour; }
 206   inline wxString GetLeftSideStyle() const { return m_leftSideStyle; }
 207   inline wxString GetTopSideStyle() const { return m_topSideStyle; }
 208
 209  protected:
 210   // Adjoining divisions. NULL indicates edge
 211   // of container, and that side shouldn't be
 212   // drawn.
 213   wxDivisionShape*      m_leftSide;
 214   wxDivisionShape*      m_rightSide;
 215   wxDivisionShape*      m_topSide;
 216   wxDivisionShape*      m_bottomSide;
 217
 218   int                   m_handleSide;       // Side at which handle is legal
 219
 220   wxPen*                m_leftSidePen;
 221   wxPen*                m_topSidePen;
 222   wxString              m_leftSideColour;
 223   wxString              m_topSideColour;
 224   wxString              m_leftSideStyle;
 225   wxString              m_topSideStyle;
 226 };
 227
 228 extern wxMenu *oglPopupDivisionMenu;
 229 extern void oglGraphicsDivisionMenuProc(wxMenu& menu, wxCommandEvent& event);
 230
 231 #define DIVISION_MENU_SPLIT_HORIZONTALLY    1
 232 #define DIVISION_MENU_SPLIT_VERTICALLY      2
 233 #define DIVISION_MENU_EDIT_LEFT_EDGE        3
 234 #define DIVISION_MENU_EDIT_TOP_EDGE         4
 235 #define DIVISION_MENU_EDIT_RIGHT_EDGE       5
 236 #define DIVISION_MENU_EDIT_BOTTOM_EDGE      6
 237 #define DIVISION_MENU_DELETE_ALL            7
 238
 239 #endif
 240  // _OGL_COMPOSIT_H_