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00012 #ifndef QWT_LEGEND_ITEM_H
00013 #define QWT_LEGEND_ITEM_H
00014
00015 #include "qwt_global.h"
00016 #include "qwt_legend.h"
00017 #include "qwt_text.h"
00018 #include "qwt_text_label.h"
00019
00020 class QPainter;
00021 class QPen;
00022 class QwtSymbol;
00023
00035 class QWT_EXPORT QwtLegendItem: public QwtTextLabel
00036 {
00037 Q_OBJECT
00038 public:
00039
00047 enum IdentifierMode
00048 {
00049 NoIdentifier = 0,
00050 ShowLine = 1,
00051 ShowSymbol = 2,
00052 ShowText = 4
00053 };
00054
00055 explicit QwtLegendItem(QWidget *parent = 0);
00056 explicit QwtLegendItem(const QwtSymbol &, const QPen &,
00057 const QwtText &, QWidget *parent = 0);
00058 virtual ~QwtLegendItem();
00059
00060 virtual void setText(const QwtText &);
00061
00062 void setItemMode(QwtLegend::LegendItemMode);
00063 QwtLegend::LegendItemMode itemMode() const;
00064
00065 void setIdentifierMode(int);
00066 int identifierMode() const;
00067
00068 void setSymbol(const QwtSymbol &);
00069 const QwtSymbol& symbol() const;
00070
00071 void setCurvePen(const QPen &);
00072 const QPen& curvePen() const;
00073
00074 virtual void drawIdentifier(QPainter *, const QRect &) const;
00075 virtual void drawItem(QPainter *p, const QRect &) const;
00076
00077 virtual QSize sizeHint() const;
00078
00079 bool isChecked() const;
00080
00081 public slots:
00082 void setChecked(bool on);
00083
00084 signals:
00085 void clicked();
00086 void pressed();
00087 void released();
00088 void checked(bool);
00089
00090 protected:
00091 void setDown(bool);
00092 bool isDown() const;
00093
00094 virtual void paintEvent(QPaintEvent *);
00095 virtual void mousePressEvent(QMouseEvent *);
00096 virtual void mouseReleaseEvent(QMouseEvent *);
00097 virtual void keyPressEvent(QKeyEvent *);
00098 virtual void keyReleaseEvent(QKeyEvent *);
00099
00100 virtual void drawText(QPainter *, const QRect &);
00101
00102 private:
00103 void init(const QwtText &);
00104
00105 class PrivateData;
00106 PrivateData *d_data;
00107 };
00108
00109 #endif // QWT_LEGEND_ITEM_H