implementing delayed freezing, fixes #12865

[wxWidgets.git] / demos / life / life.cpp

diff --git a/demos/life/life.cpp b/demos/life/life.cpp
index 2d6950a106a20563142bced28a1c50cce4b5ef08..39d74b2d2f0056c131c1dd7e46103b00cf3ab59b 100644 (file)
--- a/demos/life/life.cpp
+++ b/demos/life/life.cpp
@@ -13,10 +13,6 @@
 // headers, declarations, constants
 // ==========================================================================
 
 // headers, declarations, constants
 // ==========================================================================
 

-#ifdef __GNUG__
-    #pragma implementation "life.h"
-#endif
-

 // For compilers that support precompilation, includes "wx/wx.h".
 #include "wx/wxprec.h"
 
 // For compilers that support precompilation, includes "wx/wx.h".
 #include "wx/wxprec.h"
 


@@ -31,6 +27,7 @@
 #include "wx/statline.h"
 #include "wx/wfstream.h"
 #include "wx/filedlg.h"
 #include "wx/statline.h"
 #include "wx/wfstream.h"
 #include "wx/filedlg.h"

+#include "wx/stockitem.h"

 
 #include "life.h"
 #include "game.h"
 
 #include "life.h"
 #include "game.h"


@@ -41,7 +38,7 @@
 // resources
 // --------------------------------------------------------------------------
 
 // resources
 // --------------------------------------------------------------------------
 

-#if defined(__WXGTK__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__) || defined(__WXX11__)
+#ifndef wxHAS_IMAGES_IN_RESOURCES

     // application icon
     #include "mondrian.xpm"
 
     // application icon
     #include "mondrian.xpm"
 


@@ -84,14 +81,11 @@ enum
     ID_SOUTH,
     ID_EAST,
     ID_WEST,
     ID_SOUTH,
     ID_EAST,
     ID_WEST,

-    ID_ZOOMIN,
-    ID_ZOOMOUT,

     ID_INFO,
 
     // game menu
     ID_START,
     ID_STEP,
     ID_INFO,
 
     // game menu
     ID_START,
     ID_STEP,

-    ID_STOP,

     ID_TOPSPEED,
 
     // speed selection slider
     ID_TOPSPEED,
 
     // speed selection slider


@@ -104,28 +98,30 @@ enum
 
 // Event tables
 BEGIN_EVENT_TABLE(LifeFrame, wxFrame)
 
 // Event tables
 BEGIN_EVENT_TABLE(LifeFrame, wxFrame)

-    EVT_MENU            (wxID_NEW,      LifeFrame::OnMenu)
-    EVT_MENU            (wxID_OPEN,     LifeFrame::OnOpen)
-    EVT_MENU            (ID_SAMPLES,  LifeFrame::OnSamples)
-    EVT_MENU            (wxID_ABOUT,    LifeFrame::OnMenu)
-    EVT_MENU            (wxID_EXIT,     LifeFrame::OnMenu)
-    EVT_MENU            (ID_SHOWNAV,  LifeFrame::OnMenu)
-    EVT_MENU            (ID_ORIGIN,   LifeFrame::OnNavigate)
-    EVT_BUTTON          (ID_CENTER,   LifeFrame::OnNavigate)
-    EVT_BUTTON          (ID_NORTH,    LifeFrame::OnNavigate)
-    EVT_BUTTON          (ID_SOUTH,    LifeFrame::OnNavigate)
-    EVT_BUTTON          (ID_EAST,     LifeFrame::OnNavigate)
-    EVT_BUTTON          (ID_WEST,     LifeFrame::OnNavigate)
-    EVT_MENU            (ID_ZOOMIN,   LifeFrame::OnZoom)
-    EVT_MENU            (ID_ZOOMOUT,  LifeFrame::OnZoom)
-    EVT_MENU            (ID_INFO,     LifeFrame::OnMenu)
-    EVT_MENU            (ID_START,    LifeFrame::OnMenu)
-    EVT_MENU            (ID_STEP,     LifeFrame::OnMenu)
-    EVT_MENU            (ID_STOP,     LifeFrame::OnMenu)
-    EVT_MENU            (ID_TOPSPEED, LifeFrame::OnMenu)
-    EVT_COMMAND_SCROLL  (ID_SLIDER,   LifeFrame::OnSlider)
-    EVT_TIMER           (ID_TIMER,    LifeFrame::OnTimer)
-    EVT_CLOSE           (             LifeFrame::OnClose)
+    EVT_MENU            (wxID_NEW,     LifeFrame::OnMenu)
+#if wxUSE_FILEDLG
+    EVT_MENU            (wxID_OPEN,    LifeFrame::OnOpen)
+#endif
+    EVT_MENU            (ID_SAMPLES,   LifeFrame::OnSamples)
+    EVT_MENU            (wxID_ABOUT,   LifeFrame::OnMenu)
+    EVT_MENU            (wxID_EXIT,    LifeFrame::OnMenu)
+    EVT_MENU            (ID_SHOWNAV,   LifeFrame::OnMenu)
+    EVT_MENU            (ID_ORIGIN,    LifeFrame::OnNavigate)
+    EVT_BUTTON          (ID_CENTER,    LifeFrame::OnNavigate)
+    EVT_BUTTON          (ID_NORTH,     LifeFrame::OnNavigate)
+    EVT_BUTTON          (ID_SOUTH,     LifeFrame::OnNavigate)
+    EVT_BUTTON          (ID_EAST,      LifeFrame::OnNavigate)
+    EVT_BUTTON          (ID_WEST,      LifeFrame::OnNavigate)
+    EVT_MENU            (wxID_ZOOM_IN, LifeFrame::OnZoom)
+    EVT_MENU            (wxID_ZOOM_OUT,LifeFrame::OnZoom)
+    EVT_MENU            (ID_INFO,      LifeFrame::OnMenu)
+    EVT_MENU            (ID_START,     LifeFrame::OnMenu)
+    EVT_MENU            (ID_STEP,      LifeFrame::OnMenu)
+    EVT_MENU            (wxID_STOP,    LifeFrame::OnMenu)
+    EVT_MENU            (ID_TOPSPEED,  LifeFrame::OnMenu)
+    EVT_COMMAND_SCROLL  (ID_SLIDER,    LifeFrame::OnSlider)
+    EVT_TIMER           (ID_TIMER,     LifeFrame::OnTimer)
+    EVT_CLOSE           (              LifeFrame::OnClose)

 END_EVENT_TABLE()
 
 BEGIN_EVENT_TABLE(LifeNavigator, wxMiniFrame)
 END_EVENT_TABLE()
 
 BEGIN_EVENT_TABLE(LifeNavigator, wxMiniFrame)


@@ -154,7 +150,7 @@ IMPLEMENT_APP(LifeApp)
 
 // some shortcuts
 #define ADD_TOOL(id, bmp, tooltip, help) \
 
 // some shortcuts
 #define ADD_TOOL(id, bmp, tooltip, help) \

-    toolBar->AddTool(id, bmp, wxNullBitmap, false, wxDefaultCoord, wxDefaultCoord, (wxObject *)NULL, tooltip, help)
+    toolBar->AddTool(id, wxEmptyString, bmp, wxNullBitmap, wxITEM_NORMAL, tooltip, help)

 
 
 // --------------------------------------------------------------------------
 
 
 // --------------------------------------------------------------------------


@@ -167,9 +163,8 @@ bool LifeApp::OnInit()
     // create the main application window
     LifeFrame *frame = new LifeFrame();
 
     // create the main application window
     LifeFrame *frame = new LifeFrame();
 

-    // show it and tell the application that it's our main window
+    // show it

     frame->Show(true);
     frame->Show(true);

-    SetTopWindow(frame);

 
     // just for Motif
 #ifdef __WXMOTIF__
 
     // just for Motif
 #ifdef __WXMOTIF__


@@ -185,8 +180,9 @@ bool LifeApp::OnInit()
 // --------------------------------------------------------------------------
 
 // frame constructor
 // --------------------------------------------------------------------------
 
 // frame constructor

-LifeFrame::LifeFrame() : wxFrame( (wxFrame *) NULL, wxID_ANY,
-    _("Life!"), wxPoint(200, 200) )
+LifeFrame::LifeFrame() :
+  wxFrame( (wxFrame *) NULL, wxID_ANY, _("Life!"), wxDefaultPosition ),
+  m_navigator(NULL)

 {
     // frame icon
     SetIcon(wxICON(mondrian));
 {
     // frame icon
     SetIcon(wxICON(mondrian));


@@ -197,15 +193,20 @@ LifeFrame::LifeFrame() : wxFrame( (wxFrame *) NULL, wxID_ANY,
     wxMenu *menuGame = new wxMenu(wxMENU_TEAROFF);
     wxMenu *menuHelp = new wxMenu(wxMENU_TEAROFF);
 
     wxMenu *menuGame = new wxMenu(wxMENU_TEAROFF);
     wxMenu *menuHelp = new wxMenu(wxMENU_TEAROFF);
 

-    menuFile->Append(wxID_NEW, _("&New"), _("Start a new game"));
-    menuFile->Append(wxID_OPEN, _("&Open..."), _("Open an existing Life pattern"));
+    menuFile->Append(wxID_NEW, wxEmptyString, _("Start a new game"));
+#if wxUSE_FILEDLG
+    menuFile->Append(wxID_OPEN, wxEmptyString, _("Open an existing Life pattern"));
+#endif

     menuFile->Append(ID_SAMPLES, _("&Sample game..."), _("Select a sample configuration"));
     menuFile->Append(ID_SAMPLES, _("&Sample game..."), _("Select a sample configuration"));

+#if ! (defined(__SMARTPHONE__) || defined(__POCKETPC__))

     menuFile->AppendSeparator();
     menuFile->AppendSeparator();

-    menuFile->Append(wxID_EXIT, _("E&xit\tAlt-X"), _("Quit this program"));
+    menuFile->Append(wxID_EXIT);

 
     menuView->Append(ID_SHOWNAV, _("Navigation &toolbox"), _("Show or hide toolbox"), wxITEM_CHECK);
     menuView->Check(ID_SHOWNAV, true);
     menuView->AppendSeparator();
 
     menuView->Append(ID_SHOWNAV, _("Navigation &toolbox"), _("Show or hide toolbox"), wxITEM_CHECK);
     menuView->Check(ID_SHOWNAV, true);
     menuView->AppendSeparator();

+#endif
+

     menuView->Append(ID_ORIGIN, _("&Absolute origin"), _("Go to (0, 0)"));
     menuView->Append(ID_CENTER, _("&Center of mass"), _("Find center of mass"));
     menuView->Append(ID_NORTH, _("&North"), _("Find northernmost cell"));
     menuView->Append(ID_ORIGIN, _("&Absolute origin"), _("Go to (0, 0)"));
     menuView->Append(ID_CENTER, _("&Center of mass"), _("Find center of mass"));
     menuView->Append(ID_NORTH, _("&North"), _("Find northernmost cell"));


@@ -213,14 +214,14 @@ LifeFrame::LifeFrame() : wxFrame( (wxFrame *) NULL, wxID_ANY,
     menuView->Append(ID_EAST, _("&East"), _("Find easternmost cell"));
     menuView->Append(ID_WEST, _("&West"), _("Find westernmost cell"));
     menuView->AppendSeparator();
     menuView->Append(ID_EAST, _("&East"), _("Find easternmost cell"));
     menuView->Append(ID_WEST, _("&West"), _("Find westernmost cell"));
     menuView->AppendSeparator();

-    menuView->Append(ID_ZOOMIN, _("Zoom &in\tCtrl-I"), _("Zoom in"));
-    menuView->Append(ID_ZOOMOUT, _("Zoom &out\tCtrl-O"), _("Zoom out"));
+    menuView->Append(wxID_ZOOM_IN, wxEmptyString, _("Zoom in"));
+    menuView->Append(wxID_ZOOM_OUT, wxEmptyString, _("Zoom out"));

     menuView->Append(ID_INFO, _("&Description\tCtrl-D"), _("View pattern description"));
 
     menuGame->Append(ID_START, _("&Start\tCtrl-S"), _("Start"));
     menuGame->Append(ID_STEP, _("&Next\tCtrl-N"), _("Single step"));
     menuView->Append(ID_INFO, _("&Description\tCtrl-D"), _("View pattern description"));
 
     menuGame->Append(ID_START, _("&Start\tCtrl-S"), _("Start"));
     menuGame->Append(ID_STEP, _("&Next\tCtrl-N"), _("Single step"));

-    menuGame->Append(ID_STOP, _("S&top\tCtrl-T"), _("Stop"));
-    menuGame->Enable(ID_STOP, false);
+    menuGame->Append(wxID_STOP, wxEmptyString, _("Stop"));
+    menuGame->Enable(wxID_STOP, false);

     menuGame->AppendSeparator();
     menuGame->Append(ID_TOPSPEED, _("T&op speed!"), _("Go as fast as possible"));
 
     menuGame->AppendSeparator();
     menuGame->Append(ID_TOPSPEED, _("T&op speed!"), _("Go as fast as possible"));
 


@@ -248,18 +249,23 @@ LifeFrame::LifeFrame() : wxFrame( (wxFrame *) NULL, wxID_ANY,
     toolBar->SetMargins(5, 5);
     toolBar->SetToolBitmapSize(wxSize(16, 16));
 
     toolBar->SetMargins(5, 5);
     toolBar->SetToolBitmapSize(wxSize(16, 16));
 

-    ADD_TOOL(wxID_NEW, tbBitmaps[0], _("New"), _("Start a new game"));
-    ADD_TOOL(wxID_OPEN, tbBitmaps[1], _("Open"), _("Open an existing Life pattern"));
+    ADD_TOOL(wxID_NEW, tbBitmaps[0], wxGetStockLabel(wxID_NEW, wxSTOCK_NOFLAGS), _("Start a new game"));
+#ifndef __POCKETPC__
+#if wxUSE_FILEDLG
+    ADD_TOOL(wxID_OPEN, tbBitmaps[1], wxGetStockLabel(wxID_OPEN, wxSTOCK_NOFLAGS), _("Open an existing Life pattern"));
+#endif // wxUSE_FILEDLG
+

     toolBar->AddSeparator();
     toolBar->AddSeparator();

-    ADD_TOOL(ID_ZOOMIN, tbBitmaps[2], _("Zoom in"), _("Zoom in"));
-    ADD_TOOL(ID_ZOOMOUT, tbBitmaps[3], _("Zoom out"), _("Zoom out"));
+    ADD_TOOL(wxID_ZOOM_IN, tbBitmaps[2], wxGetStockLabel(wxID_ZOOM_IN, wxSTOCK_NOFLAGS), _("Zoom in"));
+    ADD_TOOL(wxID_ZOOM_OUT, tbBitmaps[3], wxGetStockLabel(wxID_ZOOM_OUT, wxSTOCK_NOFLAGS), _("Zoom out"));

     ADD_TOOL(ID_INFO, tbBitmaps[4], _("Description"), _("Show description"));
     toolBar->AddSeparator();
     ADD_TOOL(ID_INFO, tbBitmaps[4], _("Description"), _("Show description"));
     toolBar->AddSeparator();

+#endif // __POCKETPC__

     ADD_TOOL(ID_START, tbBitmaps[5], _("Start"), _("Start"));
     ADD_TOOL(ID_START, tbBitmaps[5], _("Start"), _("Start"));

-    ADD_TOOL(ID_STOP, tbBitmaps[6], _("Stop"), _("Stop"));
+    ADD_TOOL(wxID_STOP, tbBitmaps[6], _("Stop"), _("Stop"));

 
     toolBar->Realize();
 
     toolBar->Realize();

-    toolBar->EnableTool(ID_STOP, false);    // must be after Realize() !
+    toolBar->EnableTool(wxID_STOP, false);    // must be after Realize() !

 
 #if wxUSE_STATUSBAR
     // status bar
 
 #if wxUSE_STATUSBAR
     // status bar


@@ -325,13 +331,17 @@ LifeFrame::LifeFrame() : wxFrame( (wxFrame *) NULL, wxID_ANY,
     sizer3->Add( panel1, 1, wxGROW );
     sizer3->Add( panel2, 0, wxGROW );
     SetSizer( sizer3 );
     sizer3->Add( panel1, 1, wxGROW );
     sizer3->Add( panel2, 0, wxGROW );
     SetSizer( sizer3 );

+
+#ifndef __WXWINCE__

     sizer3->Fit( this );
 
     // set minimum frame size
     sizer3->SetSizeHints( this );
 
     sizer3->Fit( this );
 
     // set minimum frame size
     sizer3->SetSizeHints( this );
 

-    // navigator frame
+    // navigator frame - not appropriate for small devices

     m_navigator = new LifeNavigator(this);
     m_navigator = new LifeNavigator(this);

+#endif
+

 }
 
 LifeFrame::~LifeFrame()
 }
 
 LifeFrame::~LifeFrame()


@@ -343,10 +353,10 @@ void LifeFrame::UpdateInfoText()
 {
     wxString msg;
 
 {
     wxString msg;
 

-    msg.Printf(_(" Generation: %u (T: %u ms),  Population: %u "),
+    msg.Printf(_(" Generation: %lu (T: %lu ms),  Population: %lu "),

                m_tics,
                m_topspeed? 0 : m_interval,
                m_tics,
                m_topspeed? 0 : m_interval,

-               m_life->GetNumCells());
+               static_cast<unsigned long>(m_life->GetNumCells()));

     m_text->SetLabel(msg);
 }
 
     m_text->SetLabel(msg);
 }
 


@@ -357,18 +367,18 @@ void LifeFrame::UpdateUI()
 {
     // start / stop
     GetToolBar()->EnableTool(ID_START, !m_running);
 {
     // start / stop
     GetToolBar()->EnableTool(ID_START, !m_running);

-    GetToolBar()->EnableTool(ID_STOP,  m_running);
+    GetToolBar()->EnableTool(wxID_STOP,  m_running);

     GetMenuBar()->Enable(ID_START, !m_running);
     GetMenuBar()->Enable(ID_STEP,  !m_running);
     GetMenuBar()->Enable(ID_START, !m_running);
     GetMenuBar()->Enable(ID_STEP,  !m_running);

-    GetMenuBar()->Enable(ID_STOP,  m_running);
+    GetMenuBar()->Enable(wxID_STOP,  m_running);

     GetMenuBar()->Enable(ID_TOPSPEED, !m_topspeed);
 
     // zooming
     int cellsize = m_canvas->GetCellSize();
     GetMenuBar()->Enable(ID_TOPSPEED, !m_topspeed);
 
     // zooming
     int cellsize = m_canvas->GetCellSize();

-    GetToolBar()->EnableTool(ID_ZOOMIN,  cellsize < 32);
-    GetToolBar()->EnableTool(ID_ZOOMOUT, cellsize > 1);
-    GetMenuBar()->Enable(ID_ZOOMIN,  cellsize < 32);
-    GetMenuBar()->Enable(ID_ZOOMOUT, cellsize > 1);
+    GetToolBar()->EnableTool(wxID_ZOOM_IN,  cellsize < 32);
+    GetToolBar()->EnableTool(wxID_ZOOM_OUT, cellsize > 1);
+    GetMenuBar()->Enable(wxID_ZOOM_IN,  cellsize < 32);
+    GetMenuBar()->Enable(wxID_ZOOM_OUT, cellsize > 1);

 }
 
 // Event handlers -----------------------------------------------------------
 }
 
 // Event handlers -----------------------------------------------------------


@@ -403,14 +413,15 @@ void LifeFrame::OnMenu(wxCommandEvent& event)
         case ID_SHOWNAV:
         {
             bool checked = GetMenuBar()->GetMenu(1)->IsChecked(ID_SHOWNAV);
         case ID_SHOWNAV:
         {
             bool checked = GetMenuBar()->GetMenu(1)->IsChecked(ID_SHOWNAV);

-            m_navigator->Show(checked);
+            if (m_navigator)
+                m_navigator->Show(checked);

             break;
         }
         case ID_INFO:
         {
             wxString desc = m_life->GetDescription();
 
             break;
         }
         case ID_INFO:
         {
             wxString desc = m_life->GetDescription();
 

-            if ( desc.IsEmpty() )
+            if ( desc.empty() )

                 desc = _("Not available");
 
             // should we make the description editable here?
                 desc = _("Not available");
 
             // should we make the description editable here?


@@ -420,7 +431,7 @@ void LifeFrame::OnMenu(wxCommandEvent& event)
         }
         case ID_START   : OnStart(); break;
         case ID_STEP    : OnStep(); break;
         }
         case ID_START   : OnStart(); break;
         case ID_STEP    : OnStep(); break;

-        case ID_STOP    : OnStop(); break;
+        case wxID_STOP  : OnStop(); break;

         case ID_TOPSPEED:
         {
             m_running = true;
         case ID_TOPSPEED:
         {
             m_running = true;


@@ -436,6 +447,7 @@ void LifeFrame::OnMenu(wxCommandEvent& event)
     }
 }
 
     }
 }
 

+#if wxUSE_FILEDLG

 void LifeFrame::OnOpen(wxCommandEvent& WXUNUSED(event))
 {
     wxFileDialog filedlg(this,
 void LifeFrame::OnOpen(wxCommandEvent& WXUNUSED(event))
 {
     wxFileDialog filedlg(this,


@@ -443,7 +455,7 @@ void LifeFrame::OnOpen(wxCommandEvent& WXUNUSED(event))
                          wxEmptyString,
                          wxEmptyString,
                          _("Life patterns (*.lif)|*.lif|All files (*.*)|*.*"),
                          wxEmptyString,
                          wxEmptyString,
                          _("Life patterns (*.lif)|*.lif|All files (*.*)|*.*"),

-                         wxOPEN | wxFILE_MUST_EXIST);
+                         wxFD_OPEN | wxFD_FILE_MUST_EXIST);

 
     if (filedlg.ShowModal() == wxID_OK)
     {
 
     if (filedlg.ShowModal() == wxID_OK)
     {


@@ -465,6 +477,7 @@ void LifeFrame::OnOpen(wxCommandEvent& WXUNUSED(event))
         }
     }
 }
         }
     }
 }

+#endif

 
 void LifeFrame::OnSamples(wxCommandEvent& WXUNUSED(event))
 {
 
 void LifeFrame::OnSamples(wxCommandEvent& WXUNUSED(event))
 {


@@ -493,12 +506,12 @@ void LifeFrame::OnZoom(wxCommandEvent& event)
 {
     int cellsize = m_canvas->GetCellSize();
 
 {
     int cellsize = m_canvas->GetCellSize();
 

-    if ((event.GetId() == ID_ZOOMIN) && cellsize < 32)
+    if ((event.GetId() == wxID_ZOOM_IN) && cellsize < 32)

     {
         m_canvas->SetCellSize(cellsize * 2);
         UpdateUI();
     }
     {
         m_canvas->SetCellSize(cellsize * 2);
         UpdateUI();
     }

-    else if ((event.GetId() == ID_ZOOMOUT) && cellsize > 1)
+    else if ((event.GetId() == wxID_ZOOM_OUT) && cellsize > 1)

     {
         m_canvas->SetCellSize(cellsize / 2);
         UpdateUI();
     {
         m_canvas->SetCellSize(cellsize / 2);
         UpdateUI();


@@ -679,7 +692,13 @@ void LifeNavigator::OnClose(wxCloseEvent& event)
 // canvas constructor
 LifeCanvas::LifeCanvas(wxWindow *parent, Life *life, bool interactive)
           : wxWindow(parent, wxID_ANY, wxDefaultPosition, wxSize(100, 100),
 // canvas constructor
 LifeCanvas::LifeCanvas(wxWindow *parent, Life *life, bool interactive)
           : wxWindow(parent, wxID_ANY, wxDefaultPosition, wxSize(100, 100),

-            wxSUNKEN_BORDER|wxFULL_REPAINT_ON_RESIZE)
+            wxFULL_REPAINT_ON_RESIZE | wxHSCROLL | wxVSCROLL
+#if !defined(__SMARTPHONE__) && !defined(__POCKETPC__)
+            |wxSUNKEN_BORDER
+#else
+            |wxSIMPLE_BORDER
+#endif
+            )

 {
     m_life        = life;
     m_interactive = interactive;
 {
     m_life        = life;
     m_interactive = interactive;


@@ -751,9 +770,7 @@ void LifeCanvas::DrawCell(wxInt32 i, wxInt32 j, bool alive)
     dc.SetPen(alive? *wxBLACK_PEN : *wxWHITE_PEN);
     dc.SetBrush(alive? *wxBLACK_BRUSH : *wxWHITE_BRUSH);
 
     dc.SetPen(alive? *wxBLACK_PEN : *wxWHITE_PEN);
     dc.SetBrush(alive? *wxBLACK_BRUSH : *wxWHITE_BRUSH);
 

-    dc.BeginDrawing();

     DrawCell(i, j, dc);
     DrawCell(i, j, dc);

-    dc.EndDrawing();

 }
 
 void LifeCanvas::DrawCell(wxInt32 i, wxInt32 j, wxDC &dc)
 }
 
 void LifeCanvas::DrawCell(wxInt32 i, wxInt32 j, wxDC &dc)


@@ -790,8 +807,6 @@ void LifeCanvas::DrawChanged()
                       m_viewportY + m_viewportH,
                       true);
 
                       m_viewportY + m_viewportH,
                       true);
 

-    dc.BeginDrawing();
-

     if (m_cellsize == 1)
     {
         dc.SetPen(*wxBLACK_PEN);
     if (m_cellsize == 1)
     {
         dc.SetPen(*wxBLACK_PEN);


@@ -810,7 +825,6 @@ void LifeCanvas::DrawChanged()
         for (size_t m = 0; m < ncells; m++)
             DrawCell(cells[m].i, cells[m].j, dc);
     }
         for (size_t m = 0; m < ncells; m++)
             DrawCell(cells[m].i, cells[m].j, dc);
     }

-    dc.EndDrawing();

 }
 
 // event handlers
 }
 
 // event handlers


@@ -839,7 +853,6 @@ void LifeCanvas::OnPaint(wxPaintEvent& WXUNUSED(event))
     bool done = m_life->FindMore(&cells, &ncells);
 
     // erase all damaged cells and draw the grid
     bool done = m_life->FindMore(&cells, &ncells);
 
     // erase all damaged cells and draw the grid

-    dc.BeginDrawing();

     dc.SetBrush(*wxWHITE_BRUSH);
 
     if (m_cellsize <= 2)
     dc.SetBrush(*wxWHITE_BRUSH);
 
     if (m_cellsize <= 2)


@@ -877,8 +890,6 @@ void LifeCanvas::OnPaint(wxPaintEvent& WXUNUSED(event))
     // last set
     for (size_t m = 0; m < ncells; m++)
         DrawCell(cells[m].i, cells[m].j, dc);
     // last set
     for (size_t m = 0; m < ncells; m++)
         DrawCell(cells[m].i, cells[m].j, dc);

-
-    dc.EndDrawing();

 }
 
 void LifeCanvas::OnMouse(wxMouseEvent& event)
 }
 
 void LifeCanvas::OnMouse(wxMouseEvent& event)


@@ -931,7 +942,6 @@ void LifeCanvas::OnMouse(wxMouseEvent& event)
         wxClientDC dc(this);
         dc.SetPen(alive? *wxBLACK_PEN : *wxWHITE_PEN);
         dc.SetBrush(alive? *wxBLACK_BRUSH : *wxWHITE_BRUSH);
         wxClientDC dc(this);
         dc.SetPen(alive? *wxBLACK_PEN : *wxWHITE_PEN);
         dc.SetBrush(alive? *wxBLACK_BRUSH : *wxWHITE_BRUSH);

-        dc.BeginDrawing();

 
         // draw a line of cells using Bresenham's algorithm
         wxInt32 d, ii, jj, di, ai, si, dj, aj, sj;
 
         // draw a line of cells using Bresenham's algorithm
         wxInt32 d, ii, jj, di, ai, si, dj, aj, sj;


@@ -987,8 +997,6 @@ void LifeCanvas::OnMouse(wxMouseEvent& event)
         DrawCell(ii, jj, dc);
         m_mi = ii;
         m_mj = jj;
         DrawCell(ii, jj, dc);
         m_mi = ii;
         m_mj = jj;

-
-        dc.EndDrawing();

     }
 
     ((LifeFrame *) wxGetApp().GetTopWindow())->UpdateInfoText();
     }
 
     ((LifeFrame *) wxGetApp().GetTopWindow())->UpdateInfoText();


@@ -1025,7 +1033,7 @@ void LifeCanvas::OnSize(wxSizeEvent& event)
 
 void LifeCanvas::OnScroll(wxScrollWinEvent& event)
 {
 
 void LifeCanvas::OnScroll(wxScrollWinEvent& event)
 {

-    WXTYPE type = event.GetEventType();
+    WXTYPE type = (WXTYPE)event.GetEventType();

     int pos     = event.GetPosition();
     int orient  = event.GetOrientation();
 
     int pos     = event.GetPosition();
     int orient  = event.GetOrientation();
 


@@ -1116,5 +1124,3 @@ void LifeCanvas::OnEraseBackground(wxEraseEvent& WXUNUSED(event))
 {
     // do nothing. I just don't want the background to be erased, you know.
 }
 {
     // do nothing. I just don't want the background to be erased, you know.
 }

-
-