]> de.git.xonotic.org Git - xonotic/netradiant.git/blobdiff - radiant/brush.cpp
reformat code! now the code is only ugly on the *inside*
[xonotic/netradiant.git] / radiant / brush.cpp
index 5e38cc1d62e785797468ceb7a103bf26cbd5f40a..57eb7af26bef29be790a238c26c7129996bb88ed 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;
@@ -39,350 +41,354 @@ bool g_brush_texturelock_enabled = true;
 
 EBrushType Brush::m_type;
 double Brush::m_maxWorldCoord = 0;
-ShaderBrush::m_state_point;
-ShaderBrushClipPlane::m_state = 0;
-ShaderBrushInstance::m_state_selpoint;
-CounterBrushInstance::m_counter = 0;
+Shader *Brush::m_state_point;
+Shader *BrushClipPlane::m_state = 0;
+Shader *BrushInstance::m_state_selpoint;
+Counter *BrushInstance::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;
 }