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fixed compilation and added a test for OnErase() to the sample

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@15392 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2002-05-05 21:31:08 +00:00
parent 336e99e28d
commit 98dd66cf4f
1 changed files with 52 additions and 30 deletions
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82
samples/erase/erase.cpp
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@@ -71,10 +71,10 @@ class MyCanvas : public wxScrolledWindow
{
public:
MyCanvas( MyFrame *parent );
void OnPaint( wxPaintEvent &event );
void OnEraseBackground( wxEraseEvent &event );
wxBitmap m_bitmap;
private:
@@ -101,11 +101,11 @@ IMPLEMENT_APP(MyApp)
bool MyApp::OnInit()
{
MyFrame *frame = new MyFrame("Minimal wxWindows App",
MyFrame *frame = new MyFrame(_T("Minimal wxWindows App"),
wxPoint(50, 50), wxSize(450, 340));
frame->Show(TRUE);
return TRUE;
}
@@ -131,20 +131,20 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
wxMenu *menuFile = new wxMenu("", wxMENU_TEAROFF);
wxMenu *helpMenu = new wxMenu;
helpMenu->Append(Minimal_About, "&About...\tCtrl-A", "Show about dialog");
helpMenu->Append(Minimal_About, _T("&About...\tCtrl-A"), _T("Show about dialog"));
menuFile->Append(Minimal_Quit, "E&xit\tAlt-X", "Quit this program");
menuFile->Append(Minimal_Quit, _T("E&xit\tAlt-X"), _T("Quit this program"));
wxMenuBar *menuBar = new wxMenuBar();
menuBar->Append(menuFile, "&File");
menuBar->Append(helpMenu, "&Help");
menuBar->Append(menuFile, _T("&File"));
menuBar->Append(helpMenu, _T("&Help"));
SetMenuBar(menuBar);
#if wxUSE_STATUSBAR
// create a status bar just for fun (by default with 1 pane only)
CreateStatusBar(2);
SetStatusText("Welcome to wxWindows!");
SetStatusText(_T("Welcome to wxWindows erase sample!"));
#endif // wxUSE_STATUSBAR
(void)new MyCanvas( this );
@@ -158,11 +158,8 @@ void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
wxString msg;
msg.Printf( _T("This is the about dialog of the Erase sample.\n")
_T("Welcome to %s"), wxVERSION_STRING);
wxMessageBox(msg, "About Erase", wxOK | wxICON_INFORMATION, this);
wxMessageBox(_T("This sample shows how you can draw custom background."),
_T("About Erase Sample"), wxOK | wxICON_INFORMATION, this);
}
@@ -172,13 +169,15 @@ BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
END_EVENT_TABLE()
MyCanvas::MyCanvas( MyFrame *parent )
: wxScrolledWindow( parent, -1, wxDefaultPosition, wxDefaultSize,
wxScrolledWindowStyle|wxNO_FULL_REPAINT_ON_RESIZE|wxSUNKEN_BORDER )
: wxScrolledWindow( parent, -1, wxDefaultPosition, wxDefaultSize,
wxScrolledWindowStyle |
wxNO_FULL_REPAINT_ON_RESIZE|
wxSUNKEN_BORDER )
{
SetScrollbars( 10, 10, 40, 100, 0, 0 );
m_bitmap = wxBitmap( mondrian_xpm );
m_bitmap = wxBitmap( wxICON(mondrian) );
new wxStaticBitmap( this, -1, m_bitmap, wxPoint(80,20) );
}
@@ -186,13 +185,16 @@ void MyCanvas::OnPaint( wxPaintEvent &event )
{
wxPaintDC dc(this);
PrepareDC( dc );
dc.SetBrush( *wxBLACK_BRUSH );
dc.DrawRectangle( 0,0,200,50 );
dc.DrawBitmap( m_bitmap, 10, 20, TRUE );
#if 0
dc.SetTextForeground(*wxBLUE);
dc.DrawText(_T("This text is drawn from OnPaint"), 65, 65);
#if 0
wxRegionIterator upd( GetUpdateRegion() );
while (upd)
{
@@ -207,27 +209,28 @@ void MyCanvas::OnPaint( wxPaintEvent &event )
wxLogDebug( "size %d %d client_size %d %d", size.x, size.y, client_size.x, client_size.y );
#endif
#if 0
int i;
dc.SetPen( *wxWHITE_PEN );
for (i = 0; i < 20; i += 2)
dc.DrawLine( i,i, i+100,i );
dc.SetPen( *wxWHITE_PEN );
for (i = 200; i < 220; i += 2)
dc.DrawLine( i-200,i, i-100,i );
wxRegion region( 110, 110, 80, 80 );
wxRegion hole( 130, 130, 40, 1 );
region.Intersect( hole );
dc.SetClippingRegion( region );
dc.SetBrush( *wxRED_BRUSH );
dc.DrawRectangle( 100, 100, 200, 200 );
dc.DestroyClippingRegion();
dc.SetPen( *wxTRANSPARENT_PEN );
wxRegion strip( 110, 200, 30, 1 );
wxRegionIterator it( strip );
while (it)
@@ -235,10 +238,29 @@ void MyCanvas::OnPaint( wxPaintEvent &event )
dc.DrawRectangle( it.GetX(), it.GetY(), it.GetWidth(), it.GetHeight() );
it ++;
}
#endif // 0
}
void MyCanvas::OnEraseBackground( wxEraseEvent &event )
void MyCanvas::OnEraseBackground( wxEraseEvent& event )
{
event.Skip( TRUE );
wxDC& dc = *event.GetDC();
dc.SetPen(*wxGREEN_PEN);
// this line is needed, otherwise the junk is left on win the background
dc.Clear();
wxSize size = GetClientSize();
for ( int x = 0; x < size.x; x+= 10 )
{
dc.DrawLine(x, 0, x, size.y);
}
for ( int y = 0; y < size.y; y+= 10 )
{
dc.DrawLine(0, y, size.x, y);
}
dc.SetTextForeground(*wxRED);
dc.DrawText(_T("This text is drawn from OnEraseBackground"), 60, 60);
}