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122 lines
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122 lines
0 B
15 years ago
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/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
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* Qwt Widget Library
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* Copyright (C) 1997 Josef Wilgen
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* Copyright (C) 2002 Uwe Rathmann
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the Qwt License, Version 1.0
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*****************************************************************************/
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// vim: expandtab
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#ifndef QWT_LEGEND_ITEM_H
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#define QWT_LEGEND_ITEM_H
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#include "qwt_global.h"
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#include "qwt_legend.h"
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#include "qwt_text.h"
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#include "qwt_text_label.h"
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class QPainter;
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class QPen;
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class QwtSymbol;
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/*!
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\brief A legend label
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QwtLegendItem represents a curve on a legend.
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It displays an curve identifier with an explaining text.
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The identifier might be a combination of curve symbol and line.
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14 years ago
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In readonly mode it behaves like a label, otherwise like
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15 years ago
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an unstylish push button.
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\sa QwtLegend, QwtPlotCurve
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*/
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class QWT_EXPORT QwtLegendItem: public QwtTextLabel
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{
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Q_OBJECT
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public:
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14 years ago
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/*!
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\brief Identifier mode
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Default is ShowLine | ShowText
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\sa QwtLegendItem::identifierMode, QwtLegendItem::setIdentifierMode
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*/
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enum IdentifierMode {
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NoIdentifier = 0,
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ShowLine = 1,
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ShowSymbol = 2,
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ShowText = 4
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};
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explicit QwtLegendItem(QWidget *parent = 0);
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explicit QwtLegendItem(const QwtSymbol &, const QPen &,
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const QwtText &, QWidget *parent = 0);
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virtual ~QwtLegendItem();
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virtual void setText(const QwtText &);
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void setItemMode(QwtLegend::LegendItemMode);
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QwtLegend::LegendItemMode itemMode() const;
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void setIdentifierMode(int);
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int identifierMode() const;
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void setIdentfierWidth(int width);
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int identifierWidth() const;
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void setSpacing(int spacing);
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int spacing() const;
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void setSymbol(const QwtSymbol &);
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const QwtSymbol& symbol() const;
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void setCurvePen(const QPen &);
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const QPen& curvePen() const;
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virtual void drawIdentifier(QPainter *, const QRect &) const;
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virtual void drawItem(QPainter *p, const QRect &) const;
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virtual QSize sizeHint() const;
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bool isChecked() const;
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public slots:
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void setChecked(bool on);
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signals:
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//! Signal, when the legend item has been clicked
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void clicked();
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//! Signal, when the legend item has been pressed
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void pressed();
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//! Signal, when the legend item has been relased
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void released();
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//! Signal, when the legend item has been toggled
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void checked(bool);
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protected:
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void setDown(bool);
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bool isDown() const;
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virtual void paintEvent(QPaintEvent *);
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virtual void mousePressEvent(QMouseEvent *);
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virtual void mouseReleaseEvent(QMouseEvent *);
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virtual void keyPressEvent(QKeyEvent *);
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virtual void keyReleaseEvent(QKeyEvent *);
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virtual void drawText(QPainter *, const QRect &);
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private:
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void init(const QwtText &);
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class PrivateData;
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PrivateData *d_data;
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};
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#endif // QWT_LEGEND_ITEM_H
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