demos/life/life.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        life.h
   3 // Purpose:     The game of Life, created by J. H. Conway
   4 // Author:      Guillermo Rodriguez Garcia, <guille@iies.es>
   5 // Modified by:
   6 // Created:     Jan/2000
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2000, Guillermo Rodriguez Garcia
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _LIFE_APP_H_
  13 #define _LIFE_APP_H_
  14
  15 #include "wx/minifram.h"
  16
  17 #include "game.h"
  18
  19
  20 // --------------------------------------------------------------------------
  21 // LifeCanvas
  22 // --------------------------------------------------------------------------
  23
  24 // Note that in LifeCanvas, all cell coordinates are
  25 // named i, j, while screen coordinates are named x, y.
  26
  27 class LifeCanvas : public wxWindow
  28 {
  29 public:
  30     // ctor and dtor
  31     LifeCanvas(wxWindow* parent, Life* life, bool interactive = true);
  32     virtual ~LifeCanvas();
  33
  34     // view management
  35     int  GetCellSize() const { return m_cellsize; };
  36     void SetCellSize(int cellsize);
  37     void Recenter(wxInt32 i, wxInt32 j);
  38
  39     // drawing
  40     void DrawChanged();
  41     void DrawCell(wxInt32 i, wxInt32 j, bool alive);
  42
  43 private:
  44     // any class wishing to process wxWidgets events must use this macro
  45     DECLARE_EVENT_TABLE()
  46
  47     // draw a cell (parametrized by DC)
  48     void DrawCell(wxInt32 i, wxInt32 j, wxDC &dc);
  49
  50     // event handlers
  51     void OnPaint(wxPaintEvent& event);
  52     void OnMouse(wxMouseEvent& event);
  53     void OnSize(wxSizeEvent& event);
  54     void OnScroll(wxScrollWinEvent& event);
  55     void OnEraseBackground(wxEraseEvent& event);
  56
  57     // conversion between cell and screen coordinates
  58     inline wxInt32 XToCell(wxCoord x) const { return (x / m_cellsize) + m_viewportX; };
  59     inline wxInt32 YToCell(wxCoord y) const { return (y / m_cellsize) + m_viewportY; };
  60     inline wxCoord CellToX(wxInt32 i) const { return (i - m_viewportX) * m_cellsize; };
  61     inline wxCoord CellToY(wxInt32 j) const { return (j - m_viewportY) * m_cellsize; };
  62
  63     // what is the user doing?
  64     enum MouseStatus
  65     {
  66         MOUSE_NOACTION,
  67         MOUSE_DRAWING,
  68         MOUSE_ERASING
  69     };
  70
  71     Life        *m_life;            // Life object
  72     int          m_cellsize;        // current cell size, in pixels
  73     bool         m_interactive;     // is this canvas interactive?
  74     MouseStatus  m_status;          // what is the user doing?
  75     wxInt32      m_viewportX;       // first visible cell (x coord)
  76     wxInt32      m_viewportY;       // first visible cell (y coord)
  77     wxInt32      m_viewportW;       // number of visible cells (w)
  78     wxInt32      m_viewportH;       // number of visible cells (h)
  79     int          m_thumbX;          // horiz. scrollbar thumb position
  80     int          m_thumbY;          // vert. scrollbar thumb position
  81     wxInt32      m_mi, m_mj;        // last mouse position
  82 };
  83
  84
  85 // --------------------------------------------------------------------------
  86 // LifeNavigator
  87 // --------------------------------------------------------------------------
  88
  89 class LifeNavigator : public wxMiniFrame
  90 {
  91 public:
  92     // ctor
  93     LifeNavigator(wxWindow *parent);
  94
  95 private:
  96     // any class wishing to process wxWidgets events must use this macro
  97     DECLARE_EVENT_TABLE()
  98
  99     // event handlers
 100     void OnClose(wxCloseEvent& event);
 101 };
 102
 103
 104 // --------------------------------------------------------------------------
 105 // LifeFrame
 106 // --------------------------------------------------------------------------
 107
 108 class LifeFrame : public wxFrame
 109 {
 110 public:
 111     // ctor and dtor
 112     LifeFrame();
 113     virtual ~LifeFrame();
 114
 115     // member functions
 116     void UpdateInfoText();
 117     void UpdateUI();
 118
 119 private:
 120     // any class wishing to process wxWidgets events must use this macro
 121     DECLARE_EVENT_TABLE()
 122
 123     // event handlers
 124     void OnMenu(wxCommandEvent& event);
 125     void OnOpen(wxCommandEvent& event);
 126     void OnSamples(wxCommandEvent& event);
 127     void OnNavigate(wxCommandEvent& event);
 128     void OnZoom(wxCommandEvent& event);
 129     void OnSlider(wxScrollEvent& event);
 130     void OnTimer(wxTimerEvent& event);
 131     void OnClose(wxCloseEvent& event);
 132
 133     // event handler helpers
 134     void OnStart();
 135     void OnStop();
 136     void OnStep();
 137
 138     Life           *m_life;
 139     LifeCanvas     *m_canvas;
 140     LifeNavigator  *m_navigator;
 141     wxStaticText   *m_text;
 142     wxTimer        *m_timer;
 143     bool            m_running;
 144     bool            m_topspeed;
 145     long            m_interval;
 146     long            m_tics;
 147 };
 148
 149
 150 // --------------------------------------------------------------------------
 151 // LifeApp
 152 // --------------------------------------------------------------------------
 153
 154 class LifeApp : public wxApp
 155 {
 156 public:
 157     virtual bool OnInit();
 158 };
 159
 160 #endif  // _LIFE_APP_H_