Added wxCanvas prototype and sample

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@8205 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

contrib/samples/canvas/test/test.cpp

@@ -0,0 +1,152 @@
+/*
+ * Program: canvas
+ *
+ * Author: Robert Roebling
+ *
+ * Copyright: (C) 1998, Robert Roebling
+ *
+ */
+// For compilers that support precompilation, includes "wx/wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+#pragma hdrstop
+#endif
+
+#ifndef WX_PRECOMP
+#include "wx/wx.h"
+#endif
+
+#include <wx/image.h>
+#include <wx/file.h>
+#include <wx/timer.h>
+
+#include "smile.xpm"
+
+#include "wx/canvas/canvas.h"
+
+// derived classes
+
+class MyFrame;
+class MyApp;
+
+// MyFrame
+
+class MyFrame: public wxFrame
+{
+public:
+    MyFrame();
+    ~MyFrame();
+
+    void OnAbout( wxCommandEvent &event );
+    void OnNewFrame( wxCommandEvent &event );
+    void OnQuit( wxCommandEvent &event );
+    void OnTimer( wxTimerEvent &event );
+
+    wxCanvas        *m_canvas;
+    wxCanvasObject  *m_co;
+    wxTimer         *m_timer;
+
+private:
+    DECLARE_DYNAMIC_CLASS(MyFrame)
+    DECLARE_EVENT_TABLE()
+};
+
+// MyApp
+
+class MyApp: public wxApp
+{
+public:
+    virtual bool OnInit();
+};
+
+// main program
+
+IMPLEMENT_APP(MyApp)
+
+// MyFrame
+
+const int ID_QUIT  = 108;
+const int ID_ABOUT = 109;
+
+IMPLEMENT_DYNAMIC_CLASS( MyFrame, wxFrame )
+
+BEGIN_EVENT_TABLE(MyFrame,wxFrame)
+  EVT_MENU    (ID_ABOUT, MyFrame::OnAbout)
+  EVT_MENU    (ID_QUIT,  MyFrame::OnQuit)
+  EVT_TIMER   (-1,       MyFrame::OnTimer)
+END_EVENT_TABLE()
+
+MyFrame::MyFrame()
+       : wxFrame( (wxFrame *)NULL, -1, "wxCanvas sample",
+                  wxPoint(20,20), wxSize(470,360) )
+{
+  wxMenu *file_menu = new wxMenu();
+  file_menu->Append( ID_ABOUT, "&About...");
+  file_menu->AppendSeparator();
+  file_menu->Append( ID_QUIT, "E&xit");
+
+  wxMenuBar *menu_bar = new wxMenuBar();
+  menu_bar->Append(file_menu, "&File");
+
+  SetMenuBar( menu_bar );
+
+  CreateStatusBar(2);
+  int widths[] = { -1, 100 };
+  SetStatusWidths( 2, widths );
+
+  m_canvas = new wxCanvas( this, -1, wxPoint(0,0), wxSize(10,10) );
+
+  m_canvas->SetArea( 400, 600 );
+  
+  wxBitmap bitmap( smile_xpm );
+  wxImage image( bitmap );
+  m_co = new wxCanvasImage( image, 10, 50 );
+  m_canvas->Append( m_co );
+  
+  m_canvas->Append( new wxCanvasImage( image, 80, 50 ) );
+  
+  m_timer = new wxTimer( this );
+  m_timer->Start( 150, FALSE );
+}
+
+MyFrame::~MyFrame()
+{
+   delete m_timer;
+}
+
+void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) )
+{
+    Close( TRUE );
+}
+
+void MyFrame::OnTimer( wxTimerEvent &WXUNUSED(event) )
+{
+    m_co->Move( m_co->GetX()+1, m_co->GetY() );
+    wxWakeUpIdle();
+}
+
+void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) )
+{
+   (void)wxMessageBox( "wxCanvas demo\n"
+                      "Robert Roebling (c) 1998,2000",
+                      "About wxCanvas Demo", wxICON_INFORMATION | wxOK );
+}
+
+//-----------------------------------------------------------------------------
+// MyApp
+//-----------------------------------------------------------------------------
+
+bool MyApp::OnInit()
+{
+#if wxUSE_LIBPNG
+  wxImage::AddHandler( new wxPNGHandler );
+#endif
+
+  wxFrame *frame = new MyFrame();
+  frame->Show( TRUE );
+
+  return TRUE;
+}
+
+