QwtThermo(3) Qwt User's Guide QwtThermo(3) NAME QwtThermo - The Thermometer Widget. SYNOPSIS #include Inherits QwtAbstractScale. Public Types enum ScalePosition { NoScale, LeadingScale, TrailingScale } enum OriginMode { OriginMinimum, OriginMaximum, OriginCustom } Public Slots virtual void setValue (double) Public Member Functions QwtThermo (QWidget *parent=NULL) virtual ~QwtThermo () Destructor. void setOrientation (Qt::Orientation) Set the orientation. Qt::Orientation orientation () const void setScalePosition (ScalePosition) Change the position of the scale. ScalePosition scalePosition () const void setSpacing (int) Change the spacing between pipe and scale. int spacing () const void setBorderWidth (int) int borderWidth () const void setOriginMode (OriginMode) Change how the origin is determined. OriginMode originMode () const void setOrigin (double) Specifies the custom origin. double origin () const void setFillBrush (const QBrush &) Change the brush of the liquid. QBrush fillBrush () const void setAlarmBrush (const QBrush &) Specify the liquid brush above the alarm threshold. QBrush alarmBrush () const void setAlarmLevel (double) double alarmLevel () const void setAlarmEnabled (bool) Enable or disable the alarm threshold. bool alarmEnabled () const void setColorMap (QwtColorMap *) Assign a color map for the fill color. QwtColorMap * colorMap () const QwtColorMap * colorMap () const void setPipeWidth (int) int pipeWidth () const void setRangeFlags (QwtInterval::BorderFlags) Exclude/Include min/max values. QwtInterval::BorderFlags rangeFlags () const double value () const Return the value. virtual QSize sizeHint () const override virtual QSize minimumSizeHint () const override void setScaleDraw (QwtScaleDraw *) Set a scale draw. const QwtScaleDraw * scaleDraw () const Protected Member Functions virtual void drawLiquid (QPainter *, const QRect &) const virtual void scaleChange () override Notify a scale change. virtual void paintEvent (QPaintEvent *) override virtual void resizeEvent (QResizeEvent *) override virtual void changeEvent (QEvent *) override QwtScaleDraw * scaleDraw () QRect pipeRect () const QRect fillRect (const QRect &) const Calculate the filled rectangle of the pipe. QRect alarmRect (const QRect &) const Calculate the alarm rectangle of the pipe. Detailed Description The Thermometer Widget. QwtThermo is a widget which displays a value in an interval. It supports: o a horizontal or vertical layout; o a range; o a scale; o an alarm level. The fill colors might be calculated from an optional color map If no color map has been assigned QwtThermo uses the following colors/brushes from the widget palette: o QPalette::Base Background of the pipe o QPalette::ButtonText Fill brush below the alarm level o QPalette::Highlight Fill brush for the values above the alarm level o QPalette::WindowText For the axis of the scale o QPalette::Text For the labels of the scale Definition at line 46 of file qwt_thermo.h. Member Enumeration Documentation enum QwtThermo::OriginMode Origin mode. This property specifies where the beginning of the liquid is placed. See also setOriginMode(), setOrigin() Enumerator OriginMinimum The origin is the minimum of the scale. OriginMaximum The origin is the maximum of the scale. OriginCustom The origin is specified using the origin() property. Definition at line 91 of file qwt_thermo.h. enum QwtThermo::ScalePosition Position of the scale See also setScalePosition(), setOrientation() Enumerator NoScale The slider has no scale. LeadingScale The scale is right of a vertical or below of a horizontal slider. TrailingScale The scale is left of a vertical or above of a horizontal slider. Definition at line 73 of file qwt_thermo.h. Constructor & Destructor Documentation QwtThermo::QwtThermo (QWidget * parent = NULL) [explicit] Constructor Parameters parent Parent widget Definition at line 121 of file qwt_thermo.cpp. Member Function Documentation QBrush QwtThermo::alarmBrush () const Returns Liquid brush ( QPalette::Highlight ) above the alarm threshold. See also setAlarmBrush(), QWidget::palette() Warning The alarm threshold has no effect, when a color map has been assigned Definition at line 761 of file qwt_thermo.cpp. bool QwtThermo::alarmEnabled () const Returns True, when the alarm threshold is enabled. Warning The alarm threshold has no effect, when a color map has been assigned Definition at line 837 of file qwt_thermo.cpp. double QwtThermo::alarmLevel () const Returns Alarm threshold. See also setAlarmLevel() Warning The alarm threshold has no effect, when a color map has been assigned Definition at line 789 of file qwt_thermo.cpp. QRect QwtThermo::alarmRect (const QRect & fillRect) const [protected] Calculate the alarm rectangle of the pipe. Parameters fillRect Filled rectangle in the pipe Returns Rectangle to be filled with the alarm brush See also pipeRect(), fillRect(), alarmLevel(), alarmBrush() Definition at line 944 of file qwt_thermo.cpp. int QwtThermo::borderWidth () const Returns Border width of the thermometer pipe. See also setBorderWidth() Definition at line 671 of file qwt_thermo.cpp. void QwtThermo::changeEvent (QEvent * event) [override], [protected], [virtual] Qt change event handler Parameters event Event Reimplemented from QwtAbstractScale. Definition at line 277 of file qwt_thermo.cpp. QwtColorMap * QwtThermo::colorMap () Returns Color map for the fill color Warning The alarm threshold has no effect, when a color map has been assigned Definition at line 697 of file qwt_thermo.cpp. const QwtColorMap * QwtThermo::colorMap () const Returns Color map for the fill color Warning The alarm threshold has no effect, when a color map has been assigned Definition at line 707 of file qwt_thermo.cpp. void QwtThermo::drawLiquid (QPainter * painter, const QRect & pipeRect) const [protected], [virtual] Redraw the liquid in thermometer pipe. Parameters painter Painter pipeRect Bounding rectangle of the pipe without borders Definition at line 546 of file qwt_thermo.cpp. QBrush QwtThermo::fillBrush () const Returns Liquid ( QPalette::ButtonText ) brush. See also setFillBrush(), QWidget::palette() Definition at line 731 of file qwt_thermo.cpp. QRect QwtThermo::fillRect (const QRect & pipeRect) const [protected] Calculate the filled rectangle of the pipe. Parameters pipeRect Rectangle of the pipe Returns Rectangle to be filled ( fill and alarm brush ) See also pipeRect(), alarmRect() Definition at line 897 of file qwt_thermo.cpp. QSize QwtThermo::minimumSizeHint () const [override], [virtual] Returns Minimum size hint Warning The return value depends on the font and the scale. See also sizeHint() Definition at line 856 of file qwt_thermo.cpp. Qt::Orientation QwtThermo::orientation () const Returns Orientation See also setOrientation() Definition at line 455 of file qwt_thermo.cpp. double QwtThermo::origin () const Returns Origin of the thermo, when OriginCustom is enabled See also setOrigin(), setOriginMode(), originMode() Definition at line 504 of file qwt_thermo.cpp. QwtThermo::OriginMode QwtThermo::originMode () const Returns Mode, how the origin is determined. See also setOriginMode(), serOrigin(), origin() Definition at line 477 of file qwt_thermo.cpp. void QwtThermo::paintEvent (QPaintEvent * event) [override], [protected], [virtual] Paint event handler Parameters event Paint event Definition at line 235 of file qwt_thermo.cpp. QRect QwtThermo::pipeRect () const [protected] Returns Bounding rectangle of the pipe ( without borders ) in widget coordinates Definition at line 385 of file qwt_thermo.cpp. int QwtThermo::pipeWidth () const Returns Width of the pipe. See also setPipeWidth() Definition at line 813 of file qwt_thermo.cpp. QwtInterval::BorderFlags QwtThermo::rangeFlags () const Returns Range flags See also setRangeFlags() Definition at line 170 of file qwt_thermo.cpp. void QwtThermo::resizeEvent (QResizeEvent * event) [override], [protected], [virtual] Resize event handler Parameters event Resize event Definition at line 267 of file qwt_thermo.cpp. QwtScaleDraw * QwtThermo::scaleDraw () [protected] Returns the scale draw of the thermo See also setScaleDraw() Definition at line 226 of file qwt_thermo.cpp. const QwtScaleDraw * QwtThermo::scaleDraw () const Returns the scale draw of the thermo See also setScaleDraw() Definition at line 217 of file qwt_thermo.cpp. QwtThermo::ScalePosition QwtThermo::scalePosition () const Returns Scale position. See also setScalePosition() Definition at line 530 of file qwt_thermo.cpp. void QwtThermo::setAlarmBrush (const QBrush & brush) Specify the liquid brush above the alarm threshold. Changes the QPalette::Highlight brush of the palette. Parameters brush New brush. See also alarmBrush(), QWidget::setPalette() Warning The alarm threshold has no effect, when a color map has been assigned Definition at line 747 of file qwt_thermo.cpp. void QwtThermo::setAlarmEnabled (bool on) Enable or disable the alarm threshold. Parameters on true (disabled) or false (enabled) Warning The alarm threshold has no effect, when a color map has been assigned Definition at line 825 of file qwt_thermo.cpp. void QwtThermo::setAlarmLevel (double level) Specify the alarm threshold. Parameters level Alarm threshold See also alarmLevel() Warning The alarm threshold has no effect, when a color map has been assigned Definition at line 775 of file qwt_thermo.cpp. void QwtThermo::setBorderWidth (int width) Set the border width of the pipe. Parameters width Border width See also borderWidth() Definition at line 655 of file qwt_thermo.cpp. void QwtThermo::setColorMap (QwtColorMap * colorMap) Assign a color map for the fill color. Parameters colorMap Color map Warning The alarm threshold has no effect, when a color map has been assigned Definition at line 683 of file qwt_thermo.cpp. void QwtThermo::setFillBrush (const QBrush & brush) Change the brush of the liquid. Changes the QPalette::ButtonText brush of the palette. Parameters brush New brush. See also fillBrush(), QWidget::setPalette() Definition at line 720 of file qwt_thermo.cpp. void QwtThermo::setOrientation (Qt::Orientation orientation) Set the orientation. Parameters orientation Allowed values are Qt::Horizontal and Qt::Vertical. See also orientation(), scalePosition() Definition at line 432 of file qwt_thermo.cpp. void QwtThermo::setOrigin (double origin) Specifies the custom origin. If originMode is set to OriginCustom this property controls where the liquid starts. Parameters origin New origin level See also setOriginMode(), originMode(), origin() Definition at line 491 of file qwt_thermo.cpp. void QwtThermo::setOriginMode (OriginMode m) Change how the origin is determined. See also originMode(), serOrigin(), origin() Definition at line 464 of file qwt_thermo.cpp. void QwtThermo::setPipeWidth (int width) Change the width of the pipe. Parameters width Width of the pipe See also pipeWidth() Definition at line 800 of file qwt_thermo.cpp. void QwtThermo::setRangeFlags (QwtInterval::BorderFlags flags) Exclude/Include min/max values. According to the flags minValue() and maxValue() are included/excluded from the pipe. In case of an excluded value the corresponding tick is painted 1 pixel off of the pipeRect(). F.e. when a minimum of 0.0 has to be displayed as an empty pipe the minValue() needs to be excluded. Parameters flags Range flags See also rangeFlags() Definition at line 157 of file qwt_thermo.cpp. void QwtThermo::setScaleDraw (QwtScaleDraw * scaleDraw) Set a scale draw. For changing the labels of the scales, it is necessary to derive from QwtScaleDraw and overload QwtScaleDraw::label(). Parameters scaleDraw ScaleDraw object, that has to be created with new and will be deleted in ~QwtThermo() or the next call of setScaleDraw(). Definition at line 207 of file qwt_thermo.cpp. void QwtThermo::setScalePosition (ScalePosition scalePosition) Change the position of the scale. Parameters scalePosition Position of the scale. See also ScalePosition, scalePosition() Definition at line 515 of file qwt_thermo.cpp. void QwtThermo::setSpacing (int spacing) Change the spacing between pipe and scale. A spacing of 0 means, that the backbone of the scale is below the pipe. The default setting is 3 pixels. Parameters spacing Number of pixels See also spacing(); Definition at line 629 of file qwt_thermo.cpp. void QwtThermo::setValue (double value) [virtual], [slot] Set the current value. Parameters value New Value See also value() Definition at line 181 of file qwt_thermo.cpp. QSize QwtThermo::sizeHint () const [override], [virtual] Returns the minimum size hint See also minimumSizeHint() Definition at line 846 of file qwt_thermo.cpp. int QwtThermo::spacing () const Returns Number of pixels between pipe and scale See also setSpacing() Definition at line 645 of file qwt_thermo.cpp. Author Generated automatically by Doxygen for Qwt User's Guide from the source code. Version 6.2.0 Sun Jul 18 2021 QwtThermo(3)