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Restore a use case that was lost with the last set of updates, using a

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wxBufferedDC without a real DC, just a buffer.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41919 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robin Dunn 2006-10-11 03:45:08 +00:00
parent 42eba91294
commit c2695fb3b1
1 changed files with 12 additions and 11 deletions
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23
src/common/dcbufcmn.cpp
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@ -97,22 +97,23 @@ void wxBufferedDC::UnMask()
{
if ( m_buffer )
{
wxASSERT_MSG( m_mainDc != NULL,
_T("No underlying DC associated with wxBufferedDC (anymore)") );
wxDC* bufferDc = DetachDC();
wxASSERT( bufferDc->IsKindOf(CLASSINFO(wxMemoryDC)) );
wxCoord x=0, y=0;
if (m_mainDc)
{
wxCoord x=0, y=0;
if (m_style & wxBUFFER_CLIENT_AREA)
bufferDc->GetDeviceOrigin(& x, & y);
if (m_style & wxBUFFER_CLIENT_AREA)
bufferDc->GetDeviceOrigin(&x, &y);
m_mainDc->Blit( 0, 0,
m_buffer->GetWidth(), m_buffer->GetHeight(), bufferDc,
-x, -y );
m_mainDc = NULL;
m_mainDc->Blit( 0, 0,
m_buffer->GetWidth(), m_buffer->GetHeight(), bufferDc,
-x, -y );
m_mainDc = NULL;
}
m_buffer = NULL;
delete bufferDc;
}
@ -127,7 +128,7 @@ void wxBufferedDC::UseBuffer()
{
wxASSERT(m_buffer);
wxMemoryDC* memoryDc = new wxMemoryDC(m_mainDc);
wxMemoryDC* memoryDc = m_mainDc ? new wxMemoryDC(m_mainDc): new wxMemoryDC();
memoryDc->SelectObject(*m_buffer);
AttachDC(memoryDc);