C++ (Cpp) wxRegion::IsNull Examples

Example #1

File: region.cpp Project: BackupTheBerlios/wxbeos-svn

bool wxRegion::Intersect( const wxRegion& region )
{
#if 0
    if (region.IsNull())
        return FALSE;

    if (!m_refData)
    {
        m_refData = new wxRegionRefData();
        M_REGIONDATA->m_region = XCreateRegion();
        
        // leave here 
        return TRUE;
    }
    else
    {
        AllocExclusive();
    }

    XIntersectRegion( M_REGIONDATA->m_region,
                      M_REGIONDATA_OF(region)->m_region,
                      M_REGIONDATA->m_region );
#endif
    return TRUE;
}

Example #2

File: region.cpp Project: EdgarTx/wx

bool wxRegion::DoUnionWithRegion( const wxRegion& region )
{
    if (region.IsNull())
        return FALSE;

    if (!m_refData)
    {
        m_refData = new wxRegionRefData();
        M_REGIONDATA->m_region = gdk_region_new();
    }
    else
    {
        AllocExclusive();
    }

    GdkRegion *reg = gdk_regions_union( M_REGIONDATA->m_region, region.GetRegion() );
    gdk_region_destroy( M_REGIONDATA->m_region );
    M_REGIONDATA->m_region = reg;

    return TRUE;
}