bool wxRegion::DoXor( const wxRegion& region )
{
wxCHECK_MSG( region.Ok(), false, _T("invalid region") );
if (!m_refData)
{
return false;
}
AllocExclusive();
gdk_region_xor( M_REGIONDATA->m_region, region.GetRegion() );
return true;
}
bool wxRegion::DoSubtract( const wxRegion& region )
{
wxCHECK_MSG( region.Ok(), false, _T("invalid region") );
if (!m_refData)
{
// subtracting from an invalid region doesn't make sense
return false;
}
AllocExclusive();
gdk_region_subtract( M_REGIONDATA->m_region, region.GetRegion() );
return true;
}
bool wxRegion::DoXor( const wxRegion& region )
{
wxCHECK_MSG( region.Ok(), false, _T("invalid region") );
if (!m_refData)
{
return FALSE;
}
AllocExclusive();
GdkRegion *reg = gdk_regions_xor( M_REGIONDATA->m_region, region.GetRegion() );
gdk_region_destroy( M_REGIONDATA->m_region );
M_REGIONDATA->m_region = reg;
return TRUE;
}
bool wxRegion::DoSubtract( const wxRegion& region )
{
wxCHECK_MSG( region.Ok(), false, _T("invalid region") );
if (!m_refData)
{
// subtracting from an invalid region doesn't make sense
return FALSE;
}
AllocExclusive();
GdkRegion *reg = gdk_regions_subtract( M_REGIONDATA->m_region, region.GetRegion() );
gdk_region_destroy( M_REGIONDATA->m_region );
M_REGIONDATA->m_region = reg;
return TRUE;
}
bool wxRegion::DoUnionWithRegion( const wxRegion& region )
{
wxCHECK_MSG( region.Ok(), false, _T("invalid region") );
if (!m_refData)
{
m_refData = new wxRegionRefData();
M_REGIONDATA->m_region = gdk_region_new();
}
else
{
AllocExclusive();
}
gdk_region_union( M_REGIONDATA->m_region, region.GetRegion() );
return true;
}
bool wxRegion::DoXor( const wxRegion& region )
{
wxCHECK_MSG( region.Ok(), false, wxT("invalid region") );
if (!m_refData)
{
m_refData = new wxRegionRefData();
M_REGIONDATA->m_region = XCreateRegion();
}
else
{
AllocExclusive();
}
XXorRegion( M_REGIONDATA->m_region,
M_REGIONDATA_OF(region)->m_region,
M_REGIONDATA->m_region );
return true;
}