kazu
2297a76c53
improved elememt-selection changed some parameters show length for selected obstacles/doors minor fixes
60 lines
1.4 KiB
C++
60 lines
1.4 KiB
C++
#ifndef CLICKDIST_H
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#define CLICKDIST_H
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enum class ClickDistType {
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UNKNOWN,
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DIRECT, // e.g. distance between cursor and an edge-point, POI, AP, Beacon, ...
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CUT, // e.g. distance between cursor and an obstacle-line
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};
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/** describes distances between mouse-cursor and objects within the 2D view */
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struct ClickDist {
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/** distance in pixels */
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float dst_px;
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/** distance type */
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ClickDistType type;
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/** ctor */
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ClickDist(const float dst_px, const ClickDistType type) : dst_px(dst_px), type(type) {;}
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/** max-dummy */
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static ClickDist max() {return ClickDist(9999999, ClickDistType::UNKNOWN);}
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/** distance comparison */
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bool operator < (const ClickDist o) const {
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return (this->dst_px * this->mod()) < (o.dst_px * o.mod());
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}
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/** multiply by constant */
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ClickDist operator * (const float val) const {return ClickDist(dst_px*val, type);}
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// /** weighted distance comparison based on ClickDistType */
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// bool compare(const ClickDist o) const {
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// return ((*this)*mod()) < (o*o.mod());
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// }
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private:
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/**
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* artificially modify the distance based on the given type.
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* this enhances the selection in cases of equal distance
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* like a POI residing dirctly one a line
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*/
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float mod() const {
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switch (type) {
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case ClickDistType::UNKNOWN: return 1.1;
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case ClickDistType::CUT: return 1.0;
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case ClickDistType::DIRECT: return 0.7;
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default: throw "code error";
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}
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}
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};
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#endif // CLICKDIST_H
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