Developer Documentation

HistogramItem.hh
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41
42
43
44 #ifndef HISTOGRAM_ITEM_H
45 #define HISTOGRAM_ITEM_H
46
47 #include <qglobal.h>
48 #include <QColor>
49
50 #include "qwt_plot_item.h"
51
52 class QwtIntervalData;
53 class QString;
54
66 class HistogramItem: public QwtPlotItem
67 {
68 public:
69
71 explicit HistogramItem(const QString &title = QString::null);
73 explicit HistogramItem(const QwtText &title);
74
76 virtual ~HistogramItem();
77
82 void setData(const QwtIntervalData &data);
83 const QwtIntervalData &data() const;
84
89 void setColors( std::vector< QColor >& _colors);
90
91
93 virtual QwtDoubleRect boundingRect() const;
94
95 virtual int rtti() const;
96
98 virtual void draw(QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRect &) const;
99
100 void setBaseline(double reference);
101 double baseline() const;
102
103 enum HistogramAttribute
104 {
105 Auto = 0,
106 Xfy = 1
107 };
108
109 void setHistogramAttribute(HistogramAttribute, bool on = true);
110 bool testHistogramAttribute(HistogramAttribute) const;
111
112 protected:
114 virtual void drawBar(QPainter *, Qt::Orientation o, const QRect &) const;
115
116 private:
117 inline QColor color(uint i) const;
118
119 void init();
120
121 class PrivateData;
122 PrivateData *d_data;
123 };
124
125 #endif
HistogramItem::drawBar
virtual void drawBar(QPainter *, Qt::Orientation o, const QRect &) const
Draws a single bar.
HistogramItem::~HistogramItem
virtual ~HistogramItem()
Destructor.
HistogramItem
Histogram plotting widget.
Definition: HistogramItem.hh:66
HistogramItem::setData
void setData(const QwtIntervalData &data)
set data to render
HistogramItem::boundingRect
virtual QwtDoubleRect boundingRect() const
Function hat will return the datas bounding rectangle (for rendering)
HistogramItem::draw
virtual void draw(QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRect &) const
The actual draw function, drawing the bars inside the plot widget.
HistogramItem::setColors
void setColors(std::vector< QColor > &_colors)
Set colors.
HistogramItem::HistogramItem
HistogramItem(const QString &title=QString::null)
Constructor.