75 lines
1.5 KiB
C++
75 lines
1.5 KiB
C++
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// vpfbase.cxx - basic support classes and structures.
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// This file is released into the Public Domain, and comes with NO WARRANTY!
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#include <string>
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#include "vpfbase.hxx"
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using std::string;
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////////////////////////////////////////////////////////////////////////
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// Point and rectangle functions.
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////////////////////////////////////////////////////////////////////////
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bool
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inside (const VpfPoint &p, const VpfRectangle &r)
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{
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return (p.x >= r.minX &&
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p.x <= r.maxX &&
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p.y >= r.minY &&
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p.y <= r.maxY);
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}
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static inline bool
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inside (double point, double min, double max)
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{
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return (point >= min && point <= max);
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}
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static inline bool
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overlap (double min1, double max1, double min2, double max2)
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{
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return (inside(min1, min2, max2) ||
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inside(max1, min2, max2) ||
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inside(min2, min1, max1) ||
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inside(max2, min1, min2));
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}
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bool
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overlap (const VpfRectangle &r1, const VpfRectangle &r2)
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{
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return (overlap(r1.minX, r1.maxX, r2.minX, r2.maxX) &&
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overlap(r1.minY, r1.maxY, r2.minY, r2.maxY));
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}
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////////////////////////////////////////////////////////////////////////
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// Implementation of VpfException.
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////////////////////////////////////////////////////////////////////////
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VpfException::VpfException ()
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: _message("VPF error")
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{
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}
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VpfException::VpfException (const std::string &message)
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: _message(message)
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{
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}
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VpfException::~VpfException ()
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{
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}
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const string &
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VpfException::getMessage () const
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{
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return _message;
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}
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// end of vpfbase.cxx
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