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don't call SelectObject() twice in SetPen() (slow!); don't do anything if setting the same pen and handle errors betters (should fix bug 811415)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@25631 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2004-02-08 14:22:12 +00:00
parent 5c57bf07fa
commit b5371ab8cd
1 changed files with 27 additions and 21 deletions
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48
src/msw/dc.cpp
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@ -1357,31 +1357,37 @@ void wxDC::SetPen(const wxPen& pen)
{
WXMICROWIN_CHECK_HDC
// Set the old object temporarily, in case the assignment deletes an object
// that's not yet selected out.
if (m_oldPen)
{
::SelectObject(GetHdc(), (HPEN) m_oldPen);
m_oldPen = 0;
}
if ( pen == m_pen )
return;
m_pen = pen;
if (!m_pen.Ok())
if ( pen.Ok() )
{
if (m_oldPen)
::SelectObject(GetHdc(), (HPEN) m_oldPen);
m_oldPen = 0;
}
if (m_pen.Ok())
{
if (m_pen.GetResourceHandle())
HGDIOBJ hpen = ::SelectObject(GetHdc(), GetHpenOf(pen));
if ( hpen == HGDI_ERROR )
{
HPEN p = (HPEN) ::SelectObject(GetHdc(), (HPEN)m_pen.GetResourceHandle());
if (!m_oldPen)
m_oldPen = (WXHPEN) p;
wxLogLastError(_T("SelectObject(pen)"));
}
else // selected ok
{
if ( !m_oldPen )
m_oldPen = (WXHPEN)hpen;
m_pen = pen;
}
}
else // invalid pen, reset the current pen
{
if ( m_oldPen )
{
if ( ::SelectObject(GetHdc(), (HPEN) m_oldPen) == HGDI_ERROR )
{
wxLogLastError(_T("SelectObject(old pen)"));
}
m_oldPen = NULL;
}
m_pen = wxNullPen;
}
}