meshrenderchunkindex.h

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#ifndef OPENSWMM_RENDER_MESHRENDERCHUNKINDEX_H
#define OPENSWMM_RENDER_MESHRENDERCHUNKINDEX_H
 
#include <QRectF>
#include <QVector>
#include <QtGlobal>
 
namespace OpenSWMM::Render
{
 
class MeshRenderChunkIndex
{
public:
    struct Chunk
    {
        int    id = -1;          
        QRectF bbox;             
        QVector<int> cellIds;    
        QVector<int> edgeIds;    
        double aggregate = 0.0;
 
        [[nodiscard]] int cellCount() const { return int(cellIds.size()); }
    };
 
    struct QueryResult
    {
        QVector<int> fullyInside;   
        QVector<int> boundary;      
    };
 
    void clear();
    [[nodiscard]] bool isEmpty() const { return m_chunks.isEmpty(); }
 
    void build(const QVector<QRectF> &cellBBoxes,
               const QVector<QRectF> &edgeBBoxes,
               int targetCellsPerChunk = 4096);
 
    [[nodiscard]] QueryResult query(const QRectF &rect) const;
 
    [[nodiscard]] const QVector<Chunk> &chunks() const { return m_chunks; }
    [[nodiscard]] QVector<Chunk> &chunksMutable() { return m_chunks; }
    [[nodiscard]] int chunkCount() const { return int(m_chunks.size()); }
 
private:
    QVector<Chunk> m_chunks;
};
 
} // namespace OpenSWMM::Render
 
#endif // OPENSWMM_RENDER_MESHRENDERCHUNKINDEX_H