]> de.git.xonotic.org Git - xonotic/netradiant.git/blobdiff - radiant/brush.cpp
Revert partially (auto) "reformat code! now the code is only ugly on the *inside*"
[xonotic/netradiant.git] / radiant / brush.cpp
index 57eb7af26bef29be790a238c26c7129996bb88ed..5e38cc1d62e785797468ceb7a103bf26cbd5f40a 100644 (file)
 
 Signal0 g_brushTextureChangedCallbacks;
 
-void Brush_addTextureChangedCallback(const SignalHandler &handler)
-{
-    g_brushTextureChangedCallbacks.connectLast(handler);
+void Brush_addTextureChangedCallback( const SignalHandler& handler ){
+       g_brushTextureChangedCallbacks.connectLast( handler );
 }
 
-void Brush_textureChanged()
-{
-    g_brushTextureChangedCallbacks();
+void Brush_textureChanged(){
+       g_brushTextureChangedCallbacks();
 }
 
 QuantiseFunc Face::m_quantise;
@@ -41,354 +39,350 @@ bool g_brush_texturelock_enabled = true;
 
 EBrushType Brush::m_type;
 double Brush::m_maxWorldCoord = 0;
-Shader *Brush::m_state_point;
-Shader *BrushClipPlane::m_state = 0;
-Shader *BrushInstance::m_state_selpoint;
-Counter *BrushInstance::m_counter = 0;
+ShaderBrush::m_state_point;
+ShaderBrushClipPlane::m_state = 0;
+ShaderBrushInstance::m_state_selpoint;
+CounterBrushInstance::m_counter = 0;
 
 FaceInstanceSet g_SelectedFaceInstances;
 
 
-struct SListNode {
-    SListNode *m_next;
+struct SListNode
+{
+       SListNode* m_next;
 };
 
-class ProximalVertex {
+class ProximalVertex
+{
 public:
-    const SListNode *m_vertices;
-
-    ProximalVertex(const SListNode *next)
-            : m_vertices(next)
-    {
-    }
-
-    bool operator<(const ProximalVertex &other) const
-    {
-        if (!(operator==(other))) {
-            return m_vertices < other.m_vertices;
-        }
-        return false;
-    }
-
-    bool operator==(const ProximalVertex &other) const
-    {
-        const SListNode *v = m_vertices;
-        std::size_t DEBUG_LOOP = 0;
-        do {
-            if (v == other.m_vertices) {
-                return true;
-            }
-            v = v->m_next;
-            //ASSERT_MESSAGE(DEBUG_LOOP < c_brush_maxFaces, "infinite loop");
-            if (!(DEBUG_LOOP < c_brush_maxFaces)) {
-                break;
-            }
-            ++DEBUG_LOOP;
-        } while (v != m_vertices);
-        return false;
-    }
+const SListNode* m_vertices;
+
+ProximalVertex( const SListNode* next )
+       : m_vertices( next ){
+}
+
+bool operator<( const ProximalVertex& other ) const {
+       if ( !( operator==( other ) ) ) {
+               return m_vertices < other.m_vertices;
+       }
+       return false;
+}
+bool operator==( const ProximalVertex& other ) const {
+       const SListNode* v = m_vertices;
+       std::size_t DEBUG_LOOP = 0;
+       do
+       {
+               if ( v == other.m_vertices ) {
+                       return true;
+               }
+               v = v->m_next;
+               //ASSERT_MESSAGE(DEBUG_LOOP < c_brush_maxFaces, "infinite loop");
+               if ( !( DEBUG_LOOP < c_brush_maxFaces ) ) {
+                       break;
+               }
+               ++DEBUG_LOOP;
+       }
+       while ( v != m_vertices );
+       return false;
+}
 };
 
 typedef Array<SListNode> ProximalVertexArray;
-
-std::size_t ProximalVertexArray_index(const ProximalVertexArray &array, const ProximalVertex &vertex)
-{
-    return vertex.m_vertices - array.data();
+std::size_t ProximalVertexArray_index( const ProximalVertexArray& array, const ProximalVertex& vertex ){
+       return vertex.m_vertices - array.data();
 }
 
 
-inline bool Brush_isBounded(const Brush &brush)
-{
-    for (Brush::const_iterator i = brush.begin(); i != brush.end(); ++i) {
-        if (!(*i)->is_bounded()) {
-            return false;
-        }
-    }
-    return true;
+
+inline bool Brush_isBounded( const Brush& brush ){
+       for ( Brush::const_iterator i = brush.begin(); i != brush.end(); ++i )
+       {
+               if ( !( *i )->is_bounded() ) {
+                       return false;
+               }
+       }
+       return true;
 }
 
-void Brush::buildBRep()
-{
-    bool degenerate = buildWindings();
-
-    std::size_t faces_size = 0;
-    std::size_t faceVerticesCount = 0;
-    for (Faces::const_iterator i = m_faces.begin(); i != m_faces.end(); ++i) {
-        if ((*i)->contributes()) {
-            ++faces_size;
-        }
-        faceVerticesCount += (*i)->getWinding().numpoints;
-    }
-
-    if (degenerate || faces_size < 4 || faceVerticesCount != (faceVerticesCount >> 1)
-            << 1) { // sum of vertices for each face of a valid polyhedron is always even
-        m_uniqueVertexPoints.resize(0);
-
-        vertex_clear();
-        edge_clear();
-
-        m_edge_indices.resize(0);
-        m_edge_faces.resize(0);
-
-        m_faceCentroidPoints.resize(0);
-        m_uniqueEdgePoints.resize(0);
-        m_uniqueVertexPoints.resize(0);
-
-        for (Faces::iterator i = m_faces.begin(); i != m_faces.end(); ++i) {
-            (*i)->getWinding().resize(0);
-        }
-    } else {
-        {
-            typedef std::vector<FaceVertexId> FaceVertices;
-            FaceVertices faceVertices;
-            faceVertices.reserve(faceVerticesCount);
-
-            {
-                for (std::size_t i = 0; i != m_faces.size(); ++i) {
-                    for (std::size_t j = 0; j < m_faces[i]->getWinding().numpoints; ++j) {
-                        faceVertices.push_back(FaceVertexId(i, j));
-                    }
-                }
-            }
-
-            IndexBuffer uniqueEdgeIndices;
-            typedef VertexBuffer<ProximalVertex> UniqueEdges;
-            UniqueEdges uniqueEdges;
-
-            uniqueEdgeIndices.reserve(faceVertices.size());
-            uniqueEdges.reserve(faceVertices.size());
-
-            {
-                ProximalVertexArray edgePairs;
-                edgePairs.resize(faceVertices.size());
-
-                {
-                    for (std::size_t i = 0; i < faceVertices.size(); ++i) {
-                        edgePairs[i].m_next = edgePairs.data() + absoluteIndex(next_edge(m_faces, faceVertices[i]));
-                    }
-                }
-
-                {
-                    UniqueVertexBuffer<ProximalVertex> inserter(uniqueEdges);
-                    for (ProximalVertexArray::iterator i = edgePairs.begin(); i != edgePairs.end(); ++i) {
-                        uniqueEdgeIndices.insert(inserter.insert(ProximalVertex(&(*i))));
-                    }
-                }
-
-                {
-                    edge_clear();
-                    m_select_edges.reserve(uniqueEdges.size());
-                    for (UniqueEdges::iterator i = uniqueEdges.begin(); i != uniqueEdges.end(); ++i) {
-                        edge_push_back(faceVertices[ProximalVertexArray_index(edgePairs, *i)]);
-                    }
-                }
-
-                {
-                    m_edge_faces.resize(uniqueEdges.size());
-                    for (std::size_t i = 0; i < uniqueEdges.size(); ++i) {
-                        FaceVertexId faceVertex = faceVertices[ProximalVertexArray_index(edgePairs, uniqueEdges[i])];
-                        m_edge_faces[i] = EdgeFaces(faceVertex.getFace(),
-                                                    m_faces[faceVertex.getFace()]->getWinding()[faceVertex.getVertex()].adjacent);
-                    }
-                }
-
-                {
-                    m_uniqueEdgePoints.resize(uniqueEdges.size());
-                    for (std::size_t i = 0; i < uniqueEdges.size(); ++i) {
-                        FaceVertexId faceVertex = faceVertices[ProximalVertexArray_index(edgePairs, uniqueEdges[i])];
-
-                        const Winding &w = m_faces[faceVertex.getFace()]->getWinding();
-                        Vector3 edge = vector3_mid(w[faceVertex.getVertex()].vertex,
-                                                   w[Winding_next(w, faceVertex.getVertex())].vertex);
-                        m_uniqueEdgePoints[i] = pointvertex_for_windingpoint(edge, colour_vertex);
-                    }
-                }
-
-            }
-
-
-            IndexBuffer uniqueVertexIndices;
-            typedef VertexBuffer<ProximalVertex> UniqueVertices;
-            UniqueVertices uniqueVertices;
-
-            uniqueVertexIndices.reserve(faceVertices.size());
-            uniqueVertices.reserve(faceVertices.size());
-
-            {
-                ProximalVertexArray vertexRings;
-                vertexRings.resize(faceVertices.size());
-
-                {
-                    for (std::size_t i = 0; i < faceVertices.size(); ++i) {
-                        vertexRings[i].m_next =
-                                vertexRings.data() + absoluteIndex(next_vertex(m_faces, faceVertices[i]));
-                    }
-                }
-
-                {
-                    UniqueVertexBuffer<ProximalVertex> inserter(uniqueVertices);
-                    for (ProximalVertexArray::iterator i = vertexRings.begin(); i != vertexRings.end(); ++i) {
-                        uniqueVertexIndices.insert(inserter.insert(ProximalVertex(&(*i))));
-                    }
-                }
-
-                {
-                    vertex_clear();
-                    m_select_vertices.reserve(uniqueVertices.size());
-                    for (UniqueVertices::iterator i = uniqueVertices.begin(); i != uniqueVertices.end(); ++i) {
-                        vertex_push_back(faceVertices[ProximalVertexArray_index(vertexRings, (*i))]);
-                    }
-                }
-
-                {
-                    m_uniqueVertexPoints.resize(uniqueVertices.size());
-                    for (std::size_t i = 0; i < uniqueVertices.size(); ++i) {
-                        FaceVertexId faceVertex = faceVertices[ProximalVertexArray_index(vertexRings,
-                                                                                         uniqueVertices[i])];
-
-                        const Winding &winding = m_faces[faceVertex.getFace()]->getWinding();
-                        m_uniqueVertexPoints[i] = pointvertex_for_windingpoint(winding[faceVertex.getVertex()].vertex,
-                                                                               colour_vertex);
-                    }
-                }
-            }
-
-            if ((uniqueVertices.size() + faces_size) - uniqueEdges.size() != 2) {
-                globalErrorStream() << "Final B-Rep: inconsistent vertex count\n";
-            }
+void Brush::buildBRep(){
+       bool degenerate = buildWindings();
+
+       std::size_t faces_size = 0;
+       std::size_t faceVerticesCount = 0;
+       for ( Faces::const_iterator i = m_faces.begin(); i != m_faces.end(); ++i )
+       {
+               if ( ( *i )->contributes() ) {
+                       ++faces_size;
+               }
+               faceVerticesCount += ( *i )->getWinding().numpoints;
+       }
+
+       if ( degenerate || faces_size < 4 || faceVerticesCount != ( faceVerticesCount >> 1 ) << 1 ) { // sum of vertices for each face of a valid polyhedron is always even
+               m_uniqueVertexPoints.resize( 0 );
+
+               vertex_clear();
+               edge_clear();
+
+               m_edge_indices.resize( 0 );
+               m_edge_faces.resize( 0 );
+
+               m_faceCentroidPoints.resize( 0 );
+               m_uniqueEdgePoints.resize( 0 );
+               m_uniqueVertexPoints.resize( 0 );
+
+               for ( Faces::iterator i = m_faces.begin(); i != m_faces.end(); ++i )
+               {
+                       ( *i )->getWinding().resize( 0 );
+               }
+       }
+       else
+       {
+               {
+                       typedef std::vector<FaceVertexId> FaceVertices;
+                       FaceVertices faceVertices;
+                       faceVertices.reserve( faceVerticesCount );
+
+                       {
+                               for ( std::size_t i = 0; i != m_faces.size(); ++i )
+                               {
+                                       for ( std::size_t j = 0; j < m_faces[i]->getWinding().numpoints; ++j )
+                                       {
+                                               faceVertices.push_back( FaceVertexId( i, j ) );
+                                       }
+                               }
+                       }
+
+                       IndexBuffer uniqueEdgeIndices;
+                       typedef VertexBuffer<ProximalVertex> UniqueEdges;
+                       UniqueEdges uniqueEdges;
+
+                       uniqueEdgeIndices.reserve( faceVertices.size() );
+                       uniqueEdges.reserve( faceVertices.size() );
+
+                       {
+                               ProximalVertexArray edgePairs;
+                               edgePairs.resize( faceVertices.size() );
+
+                               {
+                                       for ( std::size_t i = 0; i < faceVertices.size(); ++i )
+                                       {
+                                               edgePairs[i].m_next = edgePairs.data() + absoluteIndex( next_edge( m_faces, faceVertices[i] ) );
+                                       }
+                               }
+
+                               {
+                                       UniqueVertexBuffer<ProximalVertex> inserter( uniqueEdges );
+                                       for ( ProximalVertexArray::iterator i = edgePairs.begin(); i != edgePairs.end(); ++i )
+                                       {
+                                               uniqueEdgeIndices.insert( inserter.insert( ProximalVertex( &( *i ) ) ) );
+                                       }
+                               }
+
+                               {
+                                       edge_clear();
+                                       m_select_edges.reserve( uniqueEdges.size() );
+                                       for ( UniqueEdges::iterator i = uniqueEdges.begin(); i != uniqueEdges.end(); ++i )
+                                       {
+                                               edge_push_back( faceVertices[ProximalVertexArray_index( edgePairs, *i )] );
+                                       }
+                               }
+
+                               {
+                                       m_edge_faces.resize( uniqueEdges.size() );
+                                       for ( std::size_t i = 0; i < uniqueEdges.size(); ++i )
+                                       {
+                                               FaceVertexId faceVertex = faceVertices[ProximalVertexArray_index( edgePairs, uniqueEdges[i] )];
+                                               m_edge_faces[i] = EdgeFaces( faceVertex.getFace(), m_faces[faceVertex.getFace()]->getWinding()[faceVertex.getVertex()].adjacent );
+                                       }
+                               }
+
+                               {
+                                       m_uniqueEdgePoints.resize( uniqueEdges.size() );
+                                       for ( std::size_t i = 0; i < uniqueEdges.size(); ++i )
+                                       {
+                                               FaceVertexId faceVertex = faceVertices[ProximalVertexArray_index( edgePairs, uniqueEdges[i] )];
+
+                                               const Winding& w = m_faces[faceVertex.getFace()]->getWinding();
+                                               Vector3 edge = vector3_mid( w[faceVertex.getVertex()].vertex, w[Winding_next( w, faceVertex.getVertex() )].vertex );
+                                               m_uniqueEdgePoints[i] = pointvertex_for_windingpoint( edge, colour_vertex );
+                                       }
+                               }
+
+                       }
+
+
+                       IndexBuffer uniqueVertexIndices;
+                       typedef VertexBuffer<ProximalVertex> UniqueVertices;
+                       UniqueVertices uniqueVertices;
+
+                       uniqueVertexIndices.reserve( faceVertices.size() );
+                       uniqueVertices.reserve( faceVertices.size() );
+
+                       {
+                               ProximalVertexArray vertexRings;
+                               vertexRings.resize( faceVertices.size() );
+
+                               {
+                                       for ( std::size_t i = 0; i < faceVertices.size(); ++i )
+                                       {
+                                               vertexRings[i].m_next = vertexRings.data() + absoluteIndex( next_vertex( m_faces, faceVertices[i] ) );
+                                       }
+                               }
+
+                               {
+                                       UniqueVertexBuffer<ProximalVertex> inserter( uniqueVertices );
+                                       for ( ProximalVertexArray::iterator i = vertexRings.begin(); i != vertexRings.end(); ++i )
+                                       {
+                                               uniqueVertexIndices.insert( inserter.insert( ProximalVertex( &( *i ) ) ) );
+                                       }
+                               }
+
+                               {
+                                       vertex_clear();
+                                       m_select_vertices.reserve( uniqueVertices.size() );
+                                       for ( UniqueVertices::iterator i = uniqueVertices.begin(); i != uniqueVertices.end(); ++i )
+                                       {
+                                               vertex_push_back( faceVertices[ProximalVertexArray_index( vertexRings, ( *i ) )] );
+                                       }
+                               }
+
+                               {
+                                       m_uniqueVertexPoints.resize( uniqueVertices.size() );
+                                       for ( std::size_t i = 0; i < uniqueVertices.size(); ++i )
+                                       {
+                                               FaceVertexId faceVertex = faceVertices[ProximalVertexArray_index( vertexRings, uniqueVertices[i] )];
+
+                                               const Winding& winding = m_faces[faceVertex.getFace()]->getWinding();
+                                               m_uniqueVertexPoints[i] = pointvertex_for_windingpoint( winding[faceVertex.getVertex()].vertex, colour_vertex );
+                                       }
+                               }
+                       }
+
+                       if ( ( uniqueVertices.size() + faces_size ) - uniqueEdges.size() != 2 ) {
+                               globalErrorStream() << "Final B-Rep: inconsistent vertex count\n";
+                       }
 
 #if BRUSH_CONNECTIVITY_DEBUG
-            if ( ( uniqueVertices.size() + faces_size ) - uniqueEdges.size() != 2 ) {
-                for ( Faces::iterator i = m_faces.begin(); i != m_faces.end(); ++i )
-                {
-                    std::size_t faceIndex = std::distance( m_faces.begin(), i );
-
-                    if ( !( *i )->contributes() ) {
-                        globalOutputStream() << "face: " << Unsigned( faceIndex ) << " does not contribute\n";
-                    }
-
-                    Winding_printConnectivity( ( *i )->getWinding() );
-                }
-            }
+                       if ( ( uniqueVertices.size() + faces_size ) - uniqueEdges.size() != 2 ) {
+                               for ( Faces::iterator i = m_faces.begin(); i != m_faces.end(); ++i )
+                               {
+                                       std::size_t faceIndex = std::distance( m_faces.begin(), i );
+
+                                       if ( !( *i )->contributes() ) {
+                                               globalOutputStream() << "face: " << Unsigned( faceIndex ) << " does not contribute\n";
+                                       }
+
+                                       Winding_printConnectivity( ( *i )->getWinding() );
+                               }
+                       }
 #endif
 
-            // edge-index list for wireframe rendering
-            {
-                m_edge_indices.resize(uniqueEdgeIndices.size());
-
-                for (std::size_t i = 0, count = 0; i < m_faces.size(); ++i) {
-                    const Winding &winding = m_faces[i]->getWinding();
-                    for (std::size_t j = 0; j < winding.numpoints; ++j) {
-                        const RenderIndex edge_index = uniqueEdgeIndices[count + j];
-
-                        m_edge_indices[edge_index].first = uniqueVertexIndices[count + j];
-                        m_edge_indices[edge_index].second = uniqueVertexIndices[count + Winding_next(winding, j)];
-                    }
-                    count += winding.numpoints;
-                }
-            }
-        }
-
-        {
-            m_faceCentroidPoints.resize(m_faces.size());
-            for (std::size_t i = 0; i < m_faces.size(); ++i) {
-                m_faces[i]->construct_centroid();
-                m_faceCentroidPoints[i] = pointvertex_for_windingpoint(m_faces[i]->centroid(), colour_vertex);
-            }
-        }
-    }
+                       // edge-index list for wireframe rendering
+                       {
+                               m_edge_indices.resize( uniqueEdgeIndices.size() );
+
+                               for ( std::size_t i = 0, count = 0; i < m_faces.size(); ++i )
+                               {
+                                       const Winding& winding = m_faces[i]->getWinding();
+                                       for ( std::size_t j = 0; j < winding.numpoints; ++j )
+                                       {
+                                               const RenderIndex edge_index = uniqueEdgeIndices[count + j];
+
+                                               m_edge_indices[edge_index].first = uniqueVertexIndices[count + j];
+                                               m_edge_indices[edge_index].second = uniqueVertexIndices[count + Winding_next( winding, j )];
+                                       }
+                                       count += winding.numpoints;
+                               }
+                       }
+               }
+
+               {
+                       m_faceCentroidPoints.resize( m_faces.size() );
+                       for ( std::size_t i = 0; i < m_faces.size(); ++i )
+                       {
+                               m_faces[i]->construct_centroid();
+                               m_faceCentroidPoints[i] = pointvertex_for_windingpoint( m_faces[i]->centroid(), colour_vertex );
+                       }
+               }
+       }
 }
 
 
-class FaceFilterWrapper : public Filter {
-    FaceFilter &m_filter;
-    bool m_active;
-    bool m_invert;
+class FaceFilterWrapper : public Filter
+{
+FaceFilter& m_filter;
+bool m_active;
+bool m_invert;
 public:
-    FaceFilterWrapper(FaceFilter &filter, bool invert) :
-            m_filter(filter),
-            m_invert(invert)
-    {
-    }
-
-    void setActive(bool active)
-    {
-        m_active = active;
-    }
-
-    bool active()
-    {
-        return m_active;
-    }
-
-    bool filter(const Face &face)
-    {
-        return m_invert ^ m_filter.filter(face);
-    }
+FaceFilterWrapper( FaceFilter& filter, bool invert ) :
+       m_filter( filter ),
+       m_invert( invert ){
+}
+void setActive( bool active ){
+       m_active = active;
+}
+bool active(){
+       return m_active;
+}
+bool filter( const Face& face ){
+       return m_invert ^ m_filter.filter( face );
+}
 };
 
 
 typedef std::list<FaceFilterWrapper> FaceFilters;
 FaceFilters g_faceFilters;
 
-void add_face_filter(FaceFilter &filter, int mask, bool invert)
-{
-    g_faceFilters.push_back(FaceFilterWrapper(filter, invert));
-    GlobalFilterSystem().addFilter(g_faceFilters.back(), mask);
+void add_face_filter( FaceFilter& filter, int mask, bool invert ){
+       g_faceFilters.push_back( FaceFilterWrapper( filter, invert ) );
+       GlobalFilterSystem().addFilter( g_faceFilters.back(), mask );
 }
 
-bool face_filtered(Face &face)
-{
-    for (FaceFilters::iterator i = g_faceFilters.begin(); i != g_faceFilters.end(); ++i) {
-        if ((*i).active() && (*i).filter(face)) {
-            return true;
-        }
-    }
-    return false;
+bool face_filtered( Face& face ){
+       for ( FaceFilters::iterator i = g_faceFilters.begin(); i != g_faceFilters.end(); ++i )
+       {
+               if ( ( *i ).active() && ( *i ).filter( face ) ) {
+                       return true;
+               }
+       }
+       return false;
 }
 
 
-class BrushFilterWrapper : public Filter {
-    bool m_active;
-    bool m_invert;
-    BrushFilter &m_filter;
+class BrushFilterWrapper : public Filter
+{
+bool m_active;
+bool m_invert;
+BrushFilter& m_filter;
 public:
-    BrushFilterWrapper(BrushFilter &filter, bool invert) : m_invert(invert), m_filter(filter)
-    {
-    }
-
-    void setActive(bool active)
-    {
-        m_active = active;
-    }
-
-    bool active()
-    {
-        return m_active;
-    }
-
-    bool filter(const Brush &brush)
-    {
-        return m_invert ^ m_filter.filter(brush);
-    }
+BrushFilterWrapper( BrushFilter& filter, bool invert ) : m_invert( invert ), m_filter( filter ){
+}
+void setActive( bool active ){
+       m_active = active;
+}
+bool active(){
+       return m_active;
+}
+bool filter( const Brush& brush ){
+       return m_invert ^ m_filter.filter( brush );
+}
 };
 
 
 typedef std::list<BrushFilterWrapper> BrushFilters;
 BrushFilters g_brushFilters;
 
-void add_brush_filter(BrushFilter &filter, int mask, bool invert)
-{
-    g_brushFilters.push_back(BrushFilterWrapper(filter, invert));
-    GlobalFilterSystem().addFilter(g_brushFilters.back(), mask);
+void add_brush_filter( BrushFilter& filter, int mask, bool invert ){
+       g_brushFilters.push_back( BrushFilterWrapper( filter, invert ) );
+       GlobalFilterSystem().addFilter( g_brushFilters.back(), mask );
 }
 
-bool brush_filtered(Brush &brush)
-{
-    for (BrushFilters::iterator i = g_brushFilters.begin(); i != g_brushFilters.end(); ++i) {
-        if ((*i).active() && (*i).filter(brush)) {
-            return true;
-        }
-    }
-    return false;
+bool brush_filtered( Brush& brush ){
+       for ( BrushFilters::iterator i = g_brushFilters.begin(); i != g_brushFilters.end(); ++i )
+       {
+               if ( ( *i ).active() && ( *i ).filter( brush ) ) {
+                       return true;
+               }
+       }
+       return false;
 }