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93 changes: 93 additions & 0 deletions
93
Code/Mantid/MantidPlot/src/Mantid/InstrumentWidget/RectF.cpp
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| #include "RectF.h" | ||
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| void RectF::moveCenter(const QPointF &p) | ||
| { | ||
| double xShift = xSpan() / 2; | ||
| double yShift = ySpan() / 2; | ||
| m_x0 = p.x() - xShift; | ||
| m_x1 = p.x() + xShift; | ||
| m_y0 = p.y() - yShift; | ||
| m_y1 = p.y() + yShift; | ||
| } | ||
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| QPointF RectF::vertex(size_t i) const | ||
| { | ||
| switch(i) | ||
| { | ||
| case 0: return QPointF(m_x0, m_y0); | ||
| case 1: return QPointF(m_x0, m_y1); | ||
| case 2: return QPointF(m_x1, m_y1); | ||
| case 3: return QPointF(m_x1, m_y0); | ||
| } | ||
| throw std::range_error( "Rectangle vertex index is out of range" ); | ||
| } | ||
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| void RectF::setVertex(size_t i, const QPointF &p) | ||
| { | ||
| switch(i) | ||
| { | ||
| case 0: m_x0 = p.x(); m_y0 = p.y(); return; | ||
| case 1: m_x0 = p.x(); m_y1 = p.y(); return; | ||
| case 2: m_x1 = p.x(); m_y1 = p.y(); return; | ||
| case 3: m_x1 = p.x(); m_y0 = p.y(); return; | ||
| } | ||
| throw std::range_error( "Rectangle vertex index is out of range" ); | ||
| } | ||
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| bool RectF::contains(double x, double y) const | ||
| { | ||
| double dx = m_x0 < m_x1 ? x - m_x0 : x - m_x1; | ||
| if ( dx < 0 || dx > width() ) return false; | ||
| double dy = m_y0 < m_y1 ? y - m_y0 : y - m_y1; | ||
| if ( dy < 0 || dy > height() ) return false; | ||
| return true; | ||
| } | ||
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| bool RectF::contains(const RectF &rect) | ||
| { | ||
| return contains( rect.p0() ) && contains( rect.p1() ); | ||
| } | ||
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| /** | ||
| * Create a transformation from this rectangle to a QRectF. | ||
| * @param trans :: The result transform. | ||
| * @param rect :: The transform's destination QRectF. | ||
| */ | ||
| void RectF::findTransform(QTransform& trans, const QRectF& rect) | ||
| { | ||
| double m11 = rect.width() / xSpan(); | ||
| double m22 = -rect.height() / ySpan(); | ||
| trans.reset(); | ||
| trans.translate(rect.left(), rect.bottom()); | ||
| trans.scale(m11, m22); | ||
| trans = trans.inverted(); | ||
| } | ||
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| void RectF::include(const QPointF &p) | ||
| { | ||
| if ( (p.x() - m_x0) / xSpan() < 0 ) | ||
| { | ||
| m_x0 = p.x(); | ||
| } | ||
| else if ( (p.x() - m_x1) / xSpan() > 0 ) | ||
| { | ||
| m_x1 = p.x(); | ||
| } | ||
| if ( (p.y() - m_y0) / ySpan() < 0 ) | ||
| { | ||
| m_y0 = p.y(); | ||
| } | ||
| else if ( (p.y() - m_y1) / ySpan() > 0 ) | ||
| { | ||
| m_y1 = p.y(); | ||
| } | ||
| } | ||
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| void RectF::unite(const RectF &rect) | ||
| { | ||
| include(rect.p0()); | ||
| include(rect.p1()); | ||
| } | ||
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