QwtThermo - Man Page

enum ScalePosition { NoScale, LeadingScale, TrailingScale }
enum OriginMode { OriginMinimum, OriginMaximum, OriginCustom }

virtual void setValue (double)

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
virtual QSize minimumSizeHint () const
void setScaleDraw (QwtScaleDraw *)
Set a scale draw.
const QwtScaleDraw * scaleDraw () const

virtual void drawLiquid (QPainter *, const QRect &) const
virtual void scaleChange ()
Notify a scale change.
virtual void paintEvent (QPaintEvent *)
virtual void resizeEvent (QResizeEvent *)
virtual void changeEvent (QEvent *)
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.

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.

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.

Constructor

Parameters

parent Parent widget

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

Returns

True, when the alarm threshold is enabled.

Warning

The alarm threshold has no effect, when a color map has been assigned

Returns

Alarm threshold.

See also

setAlarmLevel()

Warning

The alarm threshold has no effect, when a color map has been assigned

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()

Returns

Border width of the thermometer pipe.

See also

setBorderWidth()

Qt change event handler

Parameters

event Event

Returns

Color map for the fill color

Warning

The alarm threshold has no effect, when a color map has been assigned

Returns

Color map for the fill color

Warning

The alarm threshold has no effect, when a color map has been assigned

Redraw the liquid in thermometer pipe.

Parameters

painter Painter
pipeRect Bounding rectangle of the pipe without borders

Returns

Liquid ( QPalette::ButtonText ) brush.

See also

setFillBrush(), QWidget::palette()

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()

Returns

Minimum size hint

Warning

The return value depends on the font and the scale.

See also

sizeHint()

Returns

Orientation

See also

setOrientation()

Returns

Origin of the thermo, when OriginCustom is enabled

See also

setOrigin(), setOriginMode(), originMode()

Returns

Mode, how the origin is determined.

See also

setOriginMode(), serOrigin(), origin()

Paint event handler

Parameters

event Paint event

Returns

Bounding rectangle of the pipe ( without borders ) in widget coordinates

Returns

Width of the pipe.

See also

setPipeWidth()

Returns

Range flags

See also

setRangeFlags()

Resize event handler

Parameters

event Resize event

Returns

the scale draw of the thermo

See also

setScaleDraw()

Returns

the scale draw of the thermo

See also

setScaleDraw()

Returns

Scale position.

See also

setScalePosition()

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

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

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

Set the border width of the pipe.

Parameters

width Border width

See also

borderWidth()

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

Change the brush of the liquid. Changes the QPalette::ButtonText brush of the palette.

Parameters

brush New brush.

See also

fillBrush(), QWidget::setPalette()

Set the orientation.

Parameters

orientation Allowed values are Qt::Horizontal and Qt::Vertical.

See also

orientation(), scalePosition()

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()

Change how the origin is determined.

See also

originMode(), serOrigin(), origin()

Change the width of the pipe.

Parameters

width Width of the pipe

See also

pipeWidth()

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()

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().

Change the position of the scale.

Parameters

scalePosition Position of the scale.

See also

ScalePosition, scalePosition()

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();

Set the current value.

Parameters

value New Value

See also

value()

Returns

the minimum size hint

See also

minimumSizeHint()

Returns

Number of pixels between pipe and scale

See also

setSpacing()