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/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
* Qwt Widget Library
* Copyright (C) 1997 Josef Wilgen
* Copyright (C) 2002 Uwe Rathmann
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the Qwt License, Version 1.0
*****************************************************************************/
#ifndef QWT_SCALE_WIDGET_H
#define QWT_SCALE_WIDGET_H
#include <qwidget.h>
#include <qfont.h>
#include <qcolor.h>
#include <qstring.h>
#include "qwt_global.h"
#include "qwt_text.h"
#include "qwt_scale_draw.h"
class QPainter;
class QwtScaleTransformation;
class QwtScaleDiv;
class QwtColorMap;
/*!
\brief A Widget which contains a scale
This Widget can be used to decorate composite widgets with
a scale.
*/
class QWT_EXPORT QwtScaleWidget : public QWidget
{
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public:
explicit QwtScaleWidget(QWidget *parent = NULL);
#if QT_VERSION < 0x040000
explicit QwtScaleWidget(QWidget *parent, const char *name);
#endif
explicit QwtScaleWidget(QwtScaleDraw::Alignment, QWidget *parent = NULL);
virtual ~QwtScaleWidget();
signals:
//! Signal emitted, whenever the scale divison changes
void scaleDivChanged();
public:
void setTitle(const QString &title);
void setTitle(const QwtText &title);
QwtText title() const;
void setBorderDist(int start, int end);
int startBorderDist() const;
int endBorderDist() const;
void getBorderDistHint(int &start, int &end) const;
void getMinBorderDist(int &start, int &end) const;
void setMinBorderDist(int start, int end);
void setMargin(int);
int margin() const;
void setSpacing(int td);
int spacing() const;
void setPenWidth(int);
int penWidth() const;
void setScaleDiv(QwtScaleTransformation *, const QwtScaleDiv &sd);
void setScaleDraw(QwtScaleDraw *);
const QwtScaleDraw *scaleDraw() const;
QwtScaleDraw *scaleDraw();
#if QT_VERSION < 0x040000
void setLabelAlignment(int);
#else
void setLabelAlignment(Qt::Alignment);
#endif
void setLabelRotation(double rotation);
void setColorBarEnabled(bool);
bool isColorBarEnabled() const;
void setColorBarWidth(int);
int colorBarWidth() const;
void setColorMap(const QwtDoubleInterval &, const QwtColorMap &);
QwtDoubleInterval colorBarInterval() const;
const QwtColorMap &colorMap() const;
virtual QSize sizeHint() const;
virtual QSize minimumSizeHint() const;
int titleHeightForWidth(int width) const;
int dimForLength(int length, const QFont &scaleFont) const;
void drawColorBar(QPainter *painter, const QRect &rect) const;
void drawTitle(QPainter *painter, QwtScaleDraw::Alignment,
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void setAlignment(QwtScaleDraw::Alignment);
QwtScaleDraw::Alignment alignment() const;
QRect colorBarRect(const QRect&) const;
protected:
virtual void paintEvent(QPaintEvent *e);
virtual void resizeEvent(QResizeEvent *e);
#if QT_VERSION < 0x040000
virtual void fontChange(const QFont &oldfont);
#endif
void draw(QPainter *p) const;
void scaleChange();
void layoutScale( bool update = true );
private:
void initScale(QwtScaleDraw::Alignment);
class PrivateData;
PrivateData *d_data;
};
#endif