137 lines
3.5 KiB
C
137 lines
3.5 KiB
C
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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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#ifndef QWT_SCALE_WIDGET_H
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#define QWT_SCALE_WIDGET_H
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#include "qwt_global.h"
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#include "qwt_text.h"
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#include "qwt_scale_draw.h"
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#include <qwidget.h>
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#include <qfont.h>
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#include <qcolor.h>
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#include <qstring.h>
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class QPainter;
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class QwtTransform;
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class QwtScaleDiv;
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class QwtColorMap;
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/*!
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\brief A Widget which contains a scale
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This Widget can be used to decorate composite widgets with
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a scale.
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*/
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class QWT_EXPORT QwtScaleWidget : public QWidget
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{
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Q_OBJECT
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public:
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//! Layout flags of the title
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enum LayoutFlag
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{
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/*!
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The title of vertical scales is painted from top to bottom.
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Otherwise it is painted from bottom to top.
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*/
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TitleInverted = 1
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};
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//! Layout flags of the title
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typedef QFlags<LayoutFlag> LayoutFlags;
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explicit QwtScaleWidget( QWidget *parent = NULL );
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explicit QwtScaleWidget( QwtScaleDraw::Alignment, QWidget *parent = NULL );
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virtual ~QwtScaleWidget();
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Q_SIGNALS:
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//! Signal emitted, whenever the scale division changes
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void scaleDivChanged();
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public:
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void setTitle( const QString &title );
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void setTitle( const QwtText &title );
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QwtText title() const;
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void setLayoutFlag( LayoutFlag, bool on );
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bool testLayoutFlag( LayoutFlag ) const;
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void setBorderDist( int start, int end );
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int startBorderDist() const;
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int endBorderDist() const;
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void getBorderDistHint( int &start, int &end ) const;
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void getMinBorderDist( int &start, int &end ) const;
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void setMinBorderDist( int start, int end );
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void setMargin( int );
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int margin() const;
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void setSpacing( int td );
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int spacing() const;
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void setScaleDiv( const QwtScaleDiv &sd );
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void setTransformation( QwtTransform * );
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void setScaleDraw( QwtScaleDraw * );
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const QwtScaleDraw *scaleDraw() const;
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QwtScaleDraw *scaleDraw();
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void setLabelAlignment( Qt::Alignment );
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void setLabelRotation( double rotation );
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void setColorBarEnabled( bool );
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bool isColorBarEnabled() const;
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void setColorBarWidth( int );
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int colorBarWidth() const;
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void setColorMap( const QwtInterval &, QwtColorMap * );
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QwtInterval colorBarInterval() const;
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const QwtColorMap *colorMap() const;
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virtual QSize sizeHint() const;
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virtual QSize minimumSizeHint() const;
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int titleHeightForWidth( int width ) const;
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int dimForLength( int length, const QFont &scaleFont ) const;
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void drawColorBar( QPainter *painter, const QRectF & ) const;
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void drawTitle( QPainter *painter, QwtScaleDraw::Alignment,
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const QRectF &rect ) const;
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void setAlignment( QwtScaleDraw::Alignment );
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QwtScaleDraw::Alignment alignment() const;
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QRectF colorBarRect( const QRectF& ) const;
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protected:
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virtual void paintEvent( QPaintEvent * );
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virtual void resizeEvent( QResizeEvent * );
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void draw( QPainter *p ) const;
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void scaleChange();
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void layoutScale( bool update = true );
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private:
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void initScale( QwtScaleDraw::Alignment );
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class PrivateData;
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PrivateData *d_data;
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};
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Q_DECLARE_OPERATORS_FOR_FLAGS( QwtScaleWidget::LayoutFlags )
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#endif
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