void CPreviewDC::MirrorViewportOrg()
/**********************************/
{
if( m_hAttribDC != NULL && m_hDC != NULL ) {
CPoint point;
::GetViewportOrgEx( m_hAttribDC, &point );
PrinterDPtoScreenDP( &point );
point += m_sizeTopLeft;
::SetViewportOrgEx( m_hDC, point.x, point.y, NULL );
::GetWindowOrgEx( m_hAttribDC, &point );
::SetWindowOrgEx( m_hAttribDC, point.x, point.y, NULL );
}
}
void CPreviewDC::ClipToPage()
/***************************/
{
POINT point;
point.x = ::GetDeviceCaps( m_hAttribDC, HORZRES );
point.y = ::GetDeviceCaps( m_hAttribDC, VERTRES );
PrinterDPtoScreenDP( &point );
::SetMapMode( m_hDC, MM_TEXT );
::SetViewportOrgEx( m_hDC, m_sizeTopLeft.cx, m_sizeTopLeft.cy, NULL );
::SetWindowOrgEx( m_hDC, 0, 0, NULL );
::IntersectClipRect( m_hDC, 1, 1, point.x - 2, point.y - 2 );
MirrorMappingMode( FALSE );
}
void CPreviewDC::MirrorViewportOrg()
{
if (m_hAttribDC == NULL || m_hDC == NULL)
return;
CPoint ptVpOrg;
VERIFY(::GetViewportOrgEx(m_hAttribDC, &ptVpOrg));
PrinterDPtoScreenDP(&ptVpOrg);
ptVpOrg += m_sizeTopLeft;
::SetViewportOrgEx(m_hDC, ptVpOrg.x, ptVpOrg.y, NULL);
CPoint ptWinOrg;
VERIFY(::GetWindowOrgEx(m_hAttribDC, &ptWinOrg));
::SetWindowOrgEx(m_hDC, ptWinOrg.x, ptWinOrg.y, NULL);
}
void CPreviewDC::ClipToPage()
{
ASSERT(m_hAttribDC != NULL);
ASSERT(m_hDC != NULL);
// Create a rect in Screen Device coordinates that is one pixel larger
// on all sides than the actual page. This is to hide the fact that
// the printer to screen mapping mode is approximate and may result
// in rounding error.
CPoint pt(::GetDeviceCaps(m_hAttribDC, HORZRES),
::GetDeviceCaps(m_hAttribDC, VERTRES));
PrinterDPtoScreenDP(&pt);
// Set the screen dc to MM_TEXT and no WindowOrg for the interesection
::SetMapMode(m_hDC, MM_TEXT);
::SetWindowOrgEx(m_hDC, 0, 0, NULL);
::SetViewportOrgEx(m_hDC, m_sizeTopLeft.cx, m_sizeTopLeft.cy, NULL);
::IntersectClipRect(m_hDC, -1, -1, pt.x + 2, pt.y + 2);
// Resynchronize the mapping mode
MirrorMappingMode(FALSE);
}
