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HistogramItem.hh
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48 \*===========================================================================*/
49
50 #ifndef HISTOGRAM_ITEM_H
51 #define HISTOGRAM_ITEM_H
52
53 #include <qglobal.h>
54 #include <QColor>
55
56 #include "qwt_plot_item.h"
57
58 class QwtIntervalData;
59 class QString;
60
72 class HistogramItem: public QwtPlotItem
73 {
74 public:
75
77 explicit HistogramItem(const QString &title = QString::null);
79 explicit HistogramItem(const QwtText &title);
80
82 virtual ~HistogramItem();
83
88 void setData(const QwtIntervalData &data);
89 const QwtIntervalData &data() const;
90
95 void setColors( std::vector< QColor >& _colors);
96
97
99 virtual QwtDoubleRect boundingRect() const;
100
101 virtual int rtti() const;
102
104 virtual void draw(QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRect &) const;
105
106 void setBaseline(double reference);
107 double baseline() const;
108
109 enum HistogramAttribute
110 {
111 Auto = 0,
112 Xfy = 1
113 };
114
115 void setHistogramAttribute(HistogramAttribute, bool on = true);
116 bool testHistogramAttribute(HistogramAttribute) const;
117
118 protected:
120 virtual void drawBar(QPainter *, Qt::Orientation o, const QRect &) const;
121
122 private:
123 inline QColor color(uint i) const;
124
125 void init();
126
127 class PrivateData;
128 PrivateData *d_data;
129 };
130
131 #endif
HistogramItem::HistogramItem
HistogramItem(const QString &title=QString::null)
Constructor.
HistogramItem::~HistogramItem
virtual ~HistogramItem()
Destructor.
HistogramItem::setColors
void setColors(std::vector< QColor > &_colors)
Set colors.
HistogramItem::boundingRect
virtual QwtDoubleRect boundingRect() const
Function hat will return the datas bounding rectangle (for rendering)
HistogramItem::setData
void setData(const QwtIntervalData &data)
set data to render
HistogramItem
Histogram plotting widget.
Definition: HistogramItem.hh:72
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::drawBar
virtual void drawBar(QPainter *, Qt::Orientation o, const QRect &) const
Draws a single bar.