RangeSlider
: Slider to define an interval¶
This module provides a RangeSlider
widget.
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class
RangeSlider
(parent=None)[source]¶ 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
¶ Signal emitted when the value range has changed.
It provides the new range (min, max).
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sigValueChanged
¶ Signal emitted when the value of the sliders has changed.
It provides the slider values (first, second).
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sigPositionCountChanged
¶ This signal is emitted when the number of steps has changed.
It provides the new position count.
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sigPositionChanged
¶ Signal emitted when the position of the sliders has changed.
It provides the slider positions in steps or pixels (first, second).
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setPositionCount
(count)[source]¶ 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
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setFirstPosition
(position)[source]¶ Set the position of the first slider
The position is adjusted to valid values
Parameters: position (int) –
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setSecondPosition
(position)[source]¶ Set the position of the second slider
The position is adjusted to valid values
Parameters: position (int) –
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setPositions
(first, second)[source]¶ 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) –
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setMinimum
(minimum)[source]¶ Set the minimum value of the slider range.
It eventually adjusts maximum. Slider positions remains unchanged and slider values are modified.
Parameters: minimum (float) –
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setMaximum
(maximum)[source]¶ Set the maximum value of the slider range
It eventually adjusts minimum. Slider positions remains unchanged and slider values are modified.
Parameters: maximum (float) –
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setRange
(minimum, maximum)[source]¶ 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) –
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setFirstValue
(value)[source]¶ Set the value of the first slider
Value is clipped to valid values.
Parameters: value (float) –
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setSecondValue
(value)[source]¶ Set the value of the second slider
Value is clipped to valid values.
Parameters: value (float) –
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getValues
()[source]¶ Returns value of both sliders at once
Returns: (first value, second value) Return type: List[float]
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setValues
(first, second)[source]¶ 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) –
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getGroovePixmap
()[source]¶ Returns the pixmap displayed in the slider groove if any.
Return type: Union[QPixmap,None]
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setGroovePixmap
(pixmap)[source]¶ Set the pixmap displayed in the slider groove.
Parameters: pixmap (Union[QPixmap,None]) – The QPixmap to use or None to unset.
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setGroovePixmapFromProfile
(profile, colormap=None)[source]¶ 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[~silx.gui.colors.Colormap,str]) – The colormap name or object to convert profile values to colors
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