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 OGLConstraint;
  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   OGLConstraint *AddConstraint(OGLConstraint *constraint);
  55   OGLConstraint *AddConstraint(int type, wxShape *constraining, wxList& constrained);
  56   OGLConstraint *AddConstraint(int type, wxShape *constraining, wxShape *constrained);
  57
  58   void DeleteConstraint(OGLConstraint *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   OGLConstraint *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   // Prolog database stuff
  82   void WritePrologAttributes(wxExpr *clause);
  83   void ReadPrologAttributes(wxExpr *clause);
  84   // In case the object has constraints it needs to read in in a different pass
  85   void ReadConstraints(wxExpr *clause, wxExprDatabase *database);
  86 #endif
  87   // Does the copying for this object
  88   void Copy(wxShape& copy);
  89
  90   virtual wxDivisionShape *OnCreateDivision();
  91
  92   // Finds the image used to visualize a container. This is any child
  93   // of the composite that is not in the divisions list.
  94   wxShape *FindContainerImage();
  95
  96   // Returns TRUE if division is a descendant of this container
  97   bool ContainsDivision(wxDivisionShape *division);
  98
  99   inline wxList& GetDivisions() const { return (wxList&) m_divisions; }
 100   inline wxList& GetConstraints() const { return (wxList&) m_constraints; }
 101
 102 protected:
 103   double             m_oldX;
 104   double             m_oldY;
 105   wxList            m_constraints;
 106   wxList            m_divisions; // In case it's a container
 107 };
 108
 109 /*
 110  * A division object is a composite with special properties,
 111  * to be used for containment. It's a subdivision of a container.
 112  * A containing node image consists of a composite with a main child shape
 113  * such as rounded rectangle, plus a list of division objects.
 114  * It needs to be a composite because a division contains pieces
 115  * of diagram.
 116  * NOTE a container has at least one wxDivisionShape for consistency.
 117  * This can be subdivided, so it turns into two objects, then each of
 118  * these can be subdivided, etc.
 119  */
 120 #define DIVISION_SIDE_NONE      0
 121 #define DIVISION_SIDE_LEFT      1
 122 #define DIVISION_SIDE_TOP       2
 123 #define DIVISION_SIDE_RIGHT     3
 124 #define DIVISION_SIDE_BOTTOM    4
 125
 126 class wxDivisionShape: public wxCompositeShape
 127 {
 128  DECLARE_DYNAMIC_CLASS(wxDivisionShape)
 129  public:
 130
 131   wxDivisionShape();
 132   ~wxDivisionShape();
 133
 134   void OnDraw(wxDC& dc);
 135   void OnDrawContents(wxDC& dc);
 136   bool OnMovePre(wxDC& dc, double x, double y, double oldX, double oldY, bool display = TRUE);
 137   void OnDragLeft(bool draw, double x, double y, int keys, int attachment = 0);
 138   void OnBeginDragLeft(double x, double y, int keys, int attachment = 0);
 139   void OnEndDragLeft(double x, double y, int keys, int attachment = 0);
 140
 141   void OnRightClick(double x, double y, int keys = 0, int attachment = 0);
 142
 143   // Don't want this kind of composite to resize its subdiagrams, so
 144   // override composite's SetSize.
 145   void SetSize(double w, double h, bool recursive = TRUE);
 146
 147   // Similarly for calculating size: it's fixed at whatever SetSize
 148   // set it to, not in terms of children.
 149   void CalculateSize();
 150
 151   void MakeControlPoints();
 152   void ResetControlPoints();
 153   void MakeMandatoryControlPoints();
 154   void ResetMandatoryControlPoints();
 155
 156 #ifdef PROLOGIO
 157   // Prolog database stuff
 158   void WritePrologAttributes(wxExpr *clause);
 159   void ReadPrologAttributes(wxExpr *clause);
 160 #endif
 161   // Does the copying for this object
 162   void Copy(wxShape& copy);
 163
 164   // Divide horizontally (wxHORIZONTAL) or vertically (wxVERTICAL)
 165   bool Divide(int direction);
 166
 167   // Resize adjoining divisions at the given side. If test is TRUE,
 168   // just see whether it's possible for each adjoining region,
 169   // returning FALSE if it's not.
 170   bool ResizeAdjoining(int side, double newPos, bool test);
 171
 172   // Adjust a side, returning FALSE if it's not physically possible.
 173   bool AdjustLeft(double left, bool test);
 174   bool AdjustTop(double top, bool test);
 175   bool AdjustRight(double right, bool test);
 176   bool AdjustBottom(double bottom, bool test);
 177
 178   // Edit style of left or top side
 179   void EditEdge(int side);
 180
 181   // Popup menu
 182   void PopupMenu(double x, double y);
 183
 184   inline void SetLeftSide(wxDivisionShape *shape) { m_leftSide = shape; }
 185   inline void SetTopSide(wxDivisionShape *shape) { m_topSide = shape; }
 186   inline void SetRightSide(wxDivisionShape *shape) { m_rightSide = shape; }
 187   inline void SetBottomSide(wxDivisionShape *shape) { m_bottomSide = shape; }
 188   inline wxDivisionShape *GetLeftSide() const { return m_leftSide; }
 189   inline wxDivisionShape *GetTopSide() const { return m_topSide; }
 190   inline wxDivisionShape *GetRightSide() const { return m_rightSide; }
 191   inline wxDivisionShape *GetBottomSide() const { return m_bottomSide; }
 192
 193   inline void SetHandleSide(int side) { m_handleSide = side; }
 194   inline int GetHandleSide() const { return m_handleSide; }
 195
 196   inline void SetLeftSidePen(wxPen *pen) { m_leftSidePen = pen; }
 197   inline wxPen *GetLeftSidePen() const { return m_leftSidePen; }
 198   inline void SetTopSidePen(wxPen *pen) { m_topSidePen = pen; }
 199   inline wxPen *GetTopSidePen() const { return m_topSidePen; }
 200
 201   void SetLeftSideColour(const wxString& colour);
 202   void SetTopSideColour(const wxString& colour);
 203   void SetLeftSideStyle(const wxString& style);
 204   void SetTopSideStyle(const wxString& style);
 205
 206   inline wxString GetLeftSideColour() const { return m_leftSideColour; }
 207   inline wxString GetTopSideColour() const { return m_topSideColour; }
 208   inline wxString GetLeftSideStyle() const { return m_leftSideStyle; }
 209   inline wxString GetTopSideStyle() const { return m_topSideStyle; }
 210
 211  protected:
 212   // Adjoining divisions. NULL indicates edge
 213   // of container, and that side shouldn't be
 214   // drawn.
 215   wxDivisionShape*      m_leftSide;
 216   wxDivisionShape*      m_rightSide;
 217   wxDivisionShape*      m_topSide;
 218   wxDivisionShape*      m_bottomSide;
 219
 220   int                   m_handleSide;       // Side at which handle is legal
 221
 222   wxPen*                m_leftSidePen;
 223   wxPen*                m_topSidePen;
 224   wxString              m_leftSideColour;
 225   wxString              m_topSideColour;
 226   wxString              m_leftSideStyle;
 227   wxString              m_topSideStyle;
 228 };
 229
 230 extern wxMenu *oglPopupDivisionMenu;
 231 extern void oglGraphicsDivisionMenuProc(wxMenu& menu, wxCommandEvent& event);
 232
 233 #define DIVISION_MENU_SPLIT_HORIZONTALLY    1
 234 #define DIVISION_MENU_SPLIT_VERTICALLY      2
 235 #define DIVISION_MENU_EDIT_LEFT_EDGE        3
 236 #define DIVISION_MENU_EDIT_TOP_EDGE         4
 237 #define DIVISION_MENU_EDIT_RIGHT_EDGE       5
 238 #define DIVISION_MENU_EDIT_BOTTOM_EDGE      6
 239 #define DIVISION_MENU_DELETE_ALL            7
 240
 241 #endif
 242  // _OGL_COMPOSIT_H_