KD Chart 2  [rev.2.7]
KDChartZoomParameters.h
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3 **
4 ** This file is part of the KD Chart library.
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8 ** the Software.
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22 
23 #ifndef ZOOMPARAMETERS_H
24 #define ZOOMPARAMETERS_H
25 
26 //
27 // W A R N I N G
28 // -------------
29 //
30 // This file is not part of the KD Chart API. It exists purely as an
31 // implementation detail. This header file may change from version to
32 // version without notice, or even be removed.
33 //
34 // We mean it.
35 //
36 
37 #include <QPointF>
38 
39 namespace KDChart {
45  public:
47  : xFactor( 1.0 ),
48  yFactor( 1.0 ),
49  xCenter( 0.5 ),
50  yCenter( 0.5)
51  {
52  }
53 
54  ZoomParameters( qreal xFactor, qreal yFactor, const QPointF& center )
55  : xFactor( xFactor ),
56  yFactor( yFactor ),
57  xCenter( center.x() ),
58  yCenter( center.y() )
59  {
60  }
61 
62  void setCenter( const QPointF& center )
63  {
64  xCenter = center.x();
65  yCenter = center.y();
66  }
67  const QPointF center() const
68  {
69  return QPointF( xCenter, yCenter );
70  }
71 
72  qreal xFactor;
73  qreal yFactor;
74 
75  qreal xCenter;
76  qreal yCenter;
77  };
78 }
79 
80 #endif
ZoomParameters stores the center and the factor of zooming internally.
const QPointF center() const
ZoomParameters(qreal xFactor, qreal yFactor, const QPointF &center)
void setCenter(const QPointF &center)

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