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 // for compilers that support precompilation, includes "wx/wx.h"
  16 #include "wx/wxprec.h"
  17
  18 #ifdef __BORLANDC__
  19     #pragma hdrstop
  20 #endif
  21
  22 // for all others, include the necessary headers
  23 #ifndef WX_PRECOMP
  24     #include "wx/wx.h"
  25 #endif
  26
  27 #include "wx/minifram.h"
  28
  29 #include "game.h"
  30
  31
  32 // --------------------------------------------------------------------------
  33 // LifeCanvas
  34 // --------------------------------------------------------------------------
  35
  36 // Note that in LifeCanvas, all cell coordinates are
  37 // named i, j, while screen coordinates are named x, y.
  38
  39 class LifeCanvas : public wxWindow
  40 {
  41 public:
  42     // ctor and dtor
  43     LifeCanvas(wxWindow* parent, Life* life, bool interactive = true);
  44     ~LifeCanvas();
  45
  46     // view management
  47     int  GetCellSize() const { return m_cellsize; };
  48     void SetCellSize(int cellsize);
  49     void Recenter(wxInt32 i, wxInt32 j);
  50
  51     // drawing
  52     void DrawChanged();
  53     void DrawCell(wxInt32 i, wxInt32 j, bool alive);
  54
  55 private:
  56     // any class wishing to process wxWidgets events must use this macro
  57     DECLARE_EVENT_TABLE()
  58
  59     // draw a cell (parametrized by DC)
  60     void DrawCell(wxInt32 i, wxInt32 j, wxDC &dc);
  61
  62     // event handlers
  63     void OnPaint(wxPaintEvent& event);
  64     void OnMouse(wxMouseEvent& event);
  65     void OnSize(wxSizeEvent& event);
  66     void OnScroll(wxScrollWinEvent& event);
  67     void OnEraseBackground(wxEraseEvent& event);
  68
  69     // conversion between cell and screen coordinates
  70     inline wxInt32 XToCell(wxCoord x) const { return (x / m_cellsize) + m_viewportX; };
  71     inline wxInt32 YToCell(wxCoord y) const { return (y / m_cellsize) + m_viewportY; };
  72     inline wxCoord CellToX(wxInt32 i) const { return (i - m_viewportX) * m_cellsize; };
  73     inline wxCoord CellToY(wxInt32 j) const { return (j - m_viewportY) * m_cellsize; };
  74
  75     // what is the user doing?
  76     enum MouseStatus
  77     {
  78         MOUSE_NOACTION,
  79         MOUSE_DRAWING,
  80         MOUSE_ERASING
  81     };
  82
  83     Life        *m_life;            // Life object
  84     int          m_cellsize;        // current cell size, in pixels
  85     bool         m_interactive;     // is this canvas interactive?
  86     MouseStatus  m_status;          // what is the user doing?
  87     wxInt32      m_viewportX;       // first visible cell (x coord)
  88     wxInt32      m_viewportY;       // first visible cell (y coord)
  89     wxInt32      m_viewportW;       // number of visible cells (w)
  90     wxInt32      m_viewportH;       // number of visible cells (h)
  91     int          m_thumbX;          // horiz. scrollbar thumb position
  92     int          m_thumbY;          // vert. scrollbar thumb position
  93     wxInt32      m_mi, m_mj;        // last mouse position
  94 };
  95
  96
  97 // --------------------------------------------------------------------------
  98 // LifeNavigator
  99 // --------------------------------------------------------------------------
 100
 101 class LifeNavigator : public wxMiniFrame
 102 {
 103 public:
 104     // ctor
 105     LifeNavigator(wxWindow *parent);
 106
 107 private:
 108     // any class wishing to process wxWidgets events must use this macro
 109     DECLARE_EVENT_TABLE()
 110
 111     // event handlers
 112     void OnClose(wxCloseEvent& event);
 113 };
 114
 115
 116 // --------------------------------------------------------------------------
 117 // LifeFrame
 118 // --------------------------------------------------------------------------
 119
 120 class LifeFrame : public wxFrame
 121 {
 122 public:
 123     // ctor and dtor
 124     LifeFrame();
 125     ~LifeFrame();
 126
 127     // member functions
 128     void UpdateInfoText();
 129     void UpdateUI();
 130
 131 private:
 132     // any class wishing to process wxWidgets events must use this macro
 133     DECLARE_EVENT_TABLE()
 134
 135     // event handlers
 136     void OnMenu(wxCommandEvent& event);
 137     void OnOpen(wxCommandEvent& event);
 138     void OnSamples(wxCommandEvent& event);
 139     void OnNavigate(wxCommandEvent& event);
 140     void OnZoom(wxCommandEvent& event);
 141     void OnSlider(wxScrollEvent& event);
 142     void OnTimer(wxTimerEvent& event);
 143     void OnClose(wxCloseEvent& event);
 144
 145     // event handler helpers
 146     void OnStart();
 147     void OnStop();
 148     void OnStep();
 149
 150     Life           *m_life;
 151     LifeCanvas     *m_canvas;
 152     LifeNavigator  *m_navigator;
 153     wxStaticText   *m_text;
 154     wxTimer        *m_timer;
 155     bool            m_running;
 156     bool            m_topspeed;
 157     long            m_interval;
 158     long            m_tics;
 159 };
 160
 161
 162 // --------------------------------------------------------------------------
 163 // LifeApp
 164 // --------------------------------------------------------------------------
 165
 166 class LifeApp : public wxApp
 167 {
 168 public:
 169     virtual bool OnInit();
 170 };
 171
 172 #endif  // _LIFE_APP_H_