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