RangeSlider: Slider to define an interval

This module provides a RangeSlider widget.

class RangeSlider(parent=None)

Range slider with 2 thumbs and an optional colored groove.

The position of the slider thumbs can be retrieved either as values in the slider range or as a number of steps or pixels.

Parameters:parent (QWidget) – See QWidget

sigRangeChanged = <PySide.QtCore.Signal object>

Signal emitted when the value range has changed.

It provides the new range (min, max).

sigValueChanged = <PySide.QtCore.Signal object>

Signal emitted when the value of the sliders has changed.

It provides the slider values (first, second).

sigPositionCountChanged = <PySide.QtCore.Signal object>

This signal is emitted when the number of steps has changed.

It provides the new position count.

sigPositionChanged = <PySide.QtCore.Signal object>

Signal emitted when the position of the sliders has changed.

It provides the slider positions in steps or pixels (first, second).

getPositionCount()

Returns the number of positions.

Return type:Union[int,None]

setPositionCount(count)

Set the number of positions.

Slider values are eventually adjusted.

Parameters:count (Union[int,None]) – Either the number of possible positions or None to allow any values. Raises:ValueError – If count <= 1

getFirstPosition()

Returns first slider position

Return type:int

setFirstPosition(position)

Set the position of the first slider

The position is adjusted to valid values

Parameters:position (int) –

getSecondPosition()

Returns second slider position

Return type:int

setSecondPosition(position)

Set the position of the second slider

The position is adjusted to valid values

Parameters:position (int) –

getPositions()

Returns slider positions (first, second)

Return type:List[int]

setPositions(first, second)

Set the position of both sliders at once

First is clipped to the slider range: [0, max]. Second is clipped to valid values: [first, max]

Parameters:

• first (int) –
• second (int) –

getMinimum()

Returns the minimum value of the slider range

Return type:float

setMinimum(minimum)

Set the minimum value of the slider range.

It eventually adjusts maximum. Slider positions remains unchanged and slider values are modified.

Parameters:minimum (float) –

getMaximum()

Returns the maximum value of the slider range

Return type:float

setMaximum(maximum)

Set the maximum value of the slider range

It eventually adjusts minimum. Slider positions remains unchanged and slider values are modified.

Parameters:maximum (float) –

getRange()

Returns the range of values (min, max)

Return type:List[float]

setRange(minimum, maximum)

Set the range of values.

If maximum is lower than minimum, minimum is the only valid value. Slider positions remains unchanged and slider values are modified.

Parameters:

• minimum (float) –
• maximum (float) –

getFirstValue()

Returns the value of the first slider

Return type:float

setFirstValue(value)

Set the value of the first slider

Value is clipped to valid values.

Parameters:value (float) –

getSecondValue()

Returns the value of the second slider

Return type:float

setSecondValue(value)

Set the value of the second slider

Value is clipped to valid values.

Parameters:value (float) –

getValues()

Returns value of both sliders at once

Returns:(first value, second value) Return type:List[float]

setValues(first, second)

Set values for both sliders at once

First is clipped to the slider range: [minimum, maximum]. Second is clipped to valid values: [first, maximum]

Parameters:

• first (float) –
• second (float) –

getGroovePixmap()

Returns the pixmap displayed in the slider groove if any.

Return type:Union[QPixmap,None]

setGroovePixmap(pixmap)

Set the pixmap displayed in the slider groove.

Parameters:pixmap (Union[QPixmap,None]) – The QPixmap to use or None to unset.

setGroovePixmapFromProfile(profile, colormap=None)

Set the pixmap displayed in the slider groove from histogram values.

Parameters:

• profile (Union[numpy.ndarray,None]) – 1D array of values to display
• colormap (Union[Colormap,str]) – The colormap name or object to convert profile values to colors

classmethod drawRangeSliderBackground(painter, option, widget)

Draw the background of the RangeSlider widget into the painter.

Parameters:

• painter (qt.QPainter) – A painter
• option (StyleOptionRangeSlider) – Options to draw the widget
• qt.QWidget – The widget which have to be drawn