179 lines
4.6 KiB
C
179 lines
4.6 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_THERMO_H
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#define QWT_THERMO_H
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#include "qwt_global.h"
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#include "qwt_abstract_scale.h"
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#include "qwt_interval.h"
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class QwtScaleDraw;
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class QwtColorMap;
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/*!
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\brief The Thermometer Widget
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QwtThermo is a widget which displays a value in an interval. It supports:
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- a horizontal or vertical layout;
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- a range;
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- a scale;
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- an alarm level.
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\image html sysinfo.png
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The fill colors might be calculated from an optional color map
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If no color map has been assigned QwtThermo uses the
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following colors/brushes from the widget palette:
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- QPalette::Base
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Background of the pipe
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- QPalette::ButtonText
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Fill brush below the alarm level
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- QPalette::Highlight
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Fill brush for the values above the alarm level
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- QPalette::WindowText
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For the axis of the scale
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- QPalette::Text
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For the labels of the scale
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*/
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class QWT_EXPORT QwtThermo: public QwtAbstractScale
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{
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Q_OBJECT
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Q_ENUMS( ScalePosition )
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Q_ENUMS( OriginMode )
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Q_PROPERTY( Qt::Orientation orientation
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READ orientation WRITE setOrientation )
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Q_PROPERTY( ScalePosition scalePosition
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READ scalePosition WRITE setScalePosition )
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Q_PROPERTY( OriginMode originMode READ originMode WRITE setOriginMode )
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Q_PROPERTY( bool alarmEnabled READ alarmEnabled WRITE setAlarmEnabled )
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Q_PROPERTY( double alarmLevel READ alarmLevel WRITE setAlarmLevel )
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Q_PROPERTY( double origin READ origin WRITE setOrigin )
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Q_PROPERTY( int spacing READ spacing WRITE setSpacing )
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Q_PROPERTY( int borderWidth READ borderWidth WRITE setBorderWidth )
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Q_PROPERTY( int pipeWidth READ pipeWidth WRITE setPipeWidth )
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Q_PROPERTY( double value READ value WRITE setValue )
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public:
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/*!
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Position of the scale
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\sa setScalePosition(), setOrientation()
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*/
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enum ScalePosition
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{
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//! The slider has no scale
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NoScale,
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//! The scale is right of a vertical or below of a horizontal slider
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LeadingScale,
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//! The scale is left of a vertical or above of a horizontal slider
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TrailingScale
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};
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/*!
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Origin mode. This property specifies where the beginning of the liquid
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is placed.
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\sa setOriginMode(), setOrigin()
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*/
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enum OriginMode
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{
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//! The origin is the minimum of the scale
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OriginMinimum,
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//! The origin is the maximum of the scale
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OriginMaximum,
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//! The origin is specified using the origin() property
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OriginCustom
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};
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explicit QwtThermo( QWidget *parent = NULL );
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virtual ~QwtThermo();
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void setOrientation( Qt::Orientation );
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Qt::Orientation orientation() const;
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void setScalePosition( ScalePosition );
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ScalePosition scalePosition() const;
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void setSpacing( int );
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int spacing() const;
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void setBorderWidth( int w );
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int borderWidth() const;
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void setOriginMode( OriginMode );
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OriginMode originMode() const;
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void setOrigin( double );
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double origin() const;
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void setFillBrush( const QBrush &b );
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QBrush fillBrush() const;
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void setAlarmBrush( const QBrush &b );
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QBrush alarmBrush() const;
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void setAlarmLevel( double v );
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double alarmLevel() const;
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void setAlarmEnabled( bool tf );
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bool alarmEnabled() const;
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void setColorMap( QwtColorMap * );
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QwtColorMap *colorMap();
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const QwtColorMap *colorMap() const;
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void setPipeWidth( int w );
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int pipeWidth() const;
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void setRangeFlags( QwtInterval::BorderFlags );
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QwtInterval::BorderFlags rangeFlags() const;
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double value() const;
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virtual QSize sizeHint() const;
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virtual QSize minimumSizeHint() const;
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void setScaleDraw( QwtScaleDraw * );
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const QwtScaleDraw *scaleDraw() const;
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public Q_SLOTS:
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virtual void setValue( double val );
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protected:
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virtual void drawLiquid( QPainter *, const QRect & ) const;
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virtual void scaleChange();
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virtual void paintEvent( QPaintEvent * );
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virtual void resizeEvent( QResizeEvent * );
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virtual void changeEvent( QEvent * );
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QwtScaleDraw *scaleDraw();
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QRect pipeRect() const;
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QRect fillRect( const QRect & ) const;
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QRect alarmRect( const QRect & ) const;
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private:
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void layoutThermo( bool );
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class PrivateData;
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PrivateData *d_data;
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};
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#endif
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