void QgsGrassFeatureIterator::setSelectionRect( const QgsRectangle& rect, bool useIntersect )
{
QgsDebugMsg( QString( "useIntersect = %1 rect = %2" ).arg( useIntersect ).arg( rect.toString() ) );
// TODO: selection of edited lines
// Lock because functions using static/global variables are used
// (e.g. static LocList in Vect_select_lines_by_box, global BranchBuf in RTreeGetBranches)
QgsGrass::lock();
mSelection.fill( false );
BOUND_BOX box;
box.N = rect.yMaximum();
box.S = rect.yMinimum();
box.E = rect.xMaximum();
box.W = rect.xMinimum();
box.T = PORT_DOUBLE_MAX;
box.B = -PORT_DOUBLE_MAX;
// Init structures
struct ilist * list = Vect_new_list();
if ( !useIntersect )
{ // select by bounding boxes only
if ( mSource->mLayerType == QgsGrassProvider::POINT || mSource->mLayerType == QgsGrassProvider::CENTROID ||
mSource->mLayerType == QgsGrassProvider::LINE || mSource->mLayerType == QgsGrassProvider::FACE ||
mSource->mLayerType == QgsGrassProvider::BOUNDARY ||
mSource->mLayerType == QgsGrassProvider::TOPO_POINT || mSource->mLayerType == QgsGrassProvider::TOPO_LINE ||
mSource->mEditing )
{
QgsDebugMsg( "Vect_select_lines_by_box" );
int type = mSource->mGrassType;
if ( mSource->mEditing )
{
type = GV_POINTS | GV_LINES;
}
QgsDebugMsg( QString( "type = %1" ).arg( type ) );
Vect_select_lines_by_box( mSource->map(), &box, type, list );
}
else if ( mSource->mLayerType == QgsGrassProvider::POLYGON )
{
Vect_select_areas_by_box( mSource->map(), &box, list );
}
else if ( mSource->mLayerType == QgsGrassProvider::TOPO_NODE )
{
Vect_select_nodes_by_box( mSource->map(), &box, list );
}
}
else
{ // check intersection
struct line_pnts *polygon = Vect_new_line_struct();
// Using z coor -PORT_DOUBLE_MAX/PORT_DOUBLE_MAX we cover 3D, Vect_select_lines_by_polygon is
// using dig_line_box to get the box, it is not perfect, Vect_select_lines_by_polygon
// should clarify better how 2D/3D is treated
Vect_append_point( polygon, rect.xMinimum(), rect.yMinimum(), -PORT_DOUBLE_MAX );
Vect_append_point( polygon, rect.xMaximum(), rect.yMinimum(), PORT_DOUBLE_MAX );
Vect_append_point( polygon, rect.xMaximum(), rect.yMaximum(), 0 );
Vect_append_point( polygon, rect.xMinimum(), rect.yMaximum(), 0 );
Vect_append_point( polygon, rect.xMinimum(), rect.yMinimum(), 0 );
if ( mSource->mLayerType == QgsGrassProvider::POINT || mSource->mLayerType == QgsGrassProvider::CENTROID ||
mSource->mLayerType == QgsGrassProvider::LINE || mSource->mLayerType == QgsGrassProvider::FACE ||
mSource->mLayerType == QgsGrassProvider::BOUNDARY ||
mSource->mLayerType == QgsGrassProvider::TOPO_POINT || mSource->mLayerType == QgsGrassProvider::TOPO_LINE ||
mSource->mEditing )
{
QgsDebugMsg( "Vect_select_lines_by_polygon" );
int type = mSource->mGrassType;
if ( mSource->mEditing )
{
type = GV_POINTS | GV_LINES;
}
QgsDebugMsg( QString( "type = %1" ).arg( type ) );
Vect_select_lines_by_polygon( mSource->map(), polygon, 0, NULL, type, list );
}
else if ( mSource->mLayerType == QgsGrassProvider::POLYGON )
{
Vect_select_areas_by_polygon( mSource->map(), polygon, 0, NULL, list );
}
else if ( mSource->mLayerType == QgsGrassProvider::TOPO_NODE )
{
// There is no Vect_select_nodes_by_polygon but for nodes it is the same as by box
Vect_select_nodes_by_box( mSource->map(), &box, list );
}
Vect_destroy_line_struct( polygon );
}
for ( int i = 0; i < list->n_values; i++ )
{
int lid = list->value[i];
if ( lid < 1 || lid >= mSelection.size() ) // should not happen
{
QgsDebugMsg( QString( "lid %1 out of range <1,%2>" ).arg( lid ).arg( mSelection.size() ) );
continue;
}
mSelection.setBit( lid );
}
Vect_destroy_list( list );
QgsDebugMsg( QString( " %1 features selected" ).arg( list->n_values ) );
QgsGrass::unlock();
}
void QgsGrassFeatureIterator::setSelectionRect( const QgsRectangle& rect, bool useIntersect )
{
//apply selection rectangle
resetSelection( 0 );
BOUND_BOX box;
box.N = rect.yMaximum(); box.S = rect.yMinimum();
box.E = rect.xMaximum(); box.W = rect.xMinimum();
box.T = PORT_DOUBLE_MAX; box.B = -PORT_DOUBLE_MAX;
if ( !useIntersect )
{ // select by bounding boxes only
if ( mSource->mLayerType == QgsGrassProvider::POINT || mSource->mLayerType == QgsGrassProvider::CENTROID ||
mSource->mLayerType == QgsGrassProvider::LINE || mSource->mLayerType == QgsGrassProvider::FACE ||
mSource->mLayerType == QgsGrassProvider::BOUNDARY ||
mSource->mLayerType == QgsGrassProvider::TOPO_POINT || mSource->mLayerType == QgsGrassProvider::TOPO_LINE )
{
Vect_select_lines_by_box( mSource->mMap, &box, mSource->mGrassType, mList );
}
else if ( mSource->mLayerType == QgsGrassProvider::POLYGON )
{
Vect_select_areas_by_box( mSource->mMap, &box, mList );
}
else if ( mSource->mLayerType == QgsGrassProvider::TOPO_NODE )
{
Vect_select_nodes_by_box( mSource->mMap, &box, mList );
}
}
else
{ // check intersection
struct line_pnts *Polygon;
Polygon = Vect_new_line_struct();
// Using z coor -PORT_DOUBLE_MAX/PORT_DOUBLE_MAX we cover 3D, Vect_select_lines_by_polygon is
// using dig_line_box to get the box, it is not perfect, Vect_select_lines_by_polygon
// should clarify better how 2D/3D is treated
Vect_append_point( Polygon, rect.xMinimum(), rect.yMinimum(), -PORT_DOUBLE_MAX );
Vect_append_point( Polygon, rect.xMaximum(), rect.yMinimum(), PORT_DOUBLE_MAX );
Vect_append_point( Polygon, rect.xMaximum(), rect.yMaximum(), 0 );
Vect_append_point( Polygon, rect.xMinimum(), rect.yMaximum(), 0 );
Vect_append_point( Polygon, rect.xMinimum(), rect.yMinimum(), 0 );
if ( mSource->mLayerType == QgsGrassProvider::POINT || mSource->mLayerType == QgsGrassProvider::CENTROID ||
mSource->mLayerType == QgsGrassProvider::LINE || mSource->mLayerType == QgsGrassProvider::FACE ||
mSource->mLayerType == QgsGrassProvider::BOUNDARY ||
mSource->mLayerType == QgsGrassProvider::TOPO_POINT || mSource->mLayerType == QgsGrassProvider::TOPO_LINE )
{
Vect_select_lines_by_polygon( mSource->mMap, Polygon, 0, NULL, mSource->mGrassType, mList );
}
else if ( mSource->mLayerType == QgsGrassProvider::POLYGON )
{
Vect_select_areas_by_polygon( mSource->mMap, Polygon, 0, NULL, mList );
}
else if ( mSource->mLayerType == QgsGrassProvider::TOPO_NODE )
{
// There is no Vect_select_nodes_by_polygon but for nodes it is the same as by box
Vect_select_nodes_by_box( mSource->mMap, &box, mList );
}
Vect_destroy_line_struct( Polygon );
}
for ( int i = 0; i < mList->n_values; i++ )
{
if ( mList->value[i] <= mSelectionSize )
{
mSelection[mList->value[i]] = 1;
}
else
{
QgsDebugMsg( "Selected element out of range" );
}
}
}
