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