FrameBrowser

This module defines two main classes:

• FrameBrowser: a widget with 4 buttons (first, previous, next, last) to browse between frames and a text entry to access a specific frame by typing it’s number)
• HorizontalSliderWithBrowser: a FrameBrowser with an additional slider. This class inherits qt.QAbstractSlider.

API

class silx.gui.widgets.FrameBrowser.HorizontalSliderWithBrowser(parent=None)

Slider widget combining a QSlider and a FrameBrowser.

The data model is an integer within a range.

The default value is the default QSlider value (0), and the default range is the default QSlider range (0 – 99)

The signal emitted when the value is changed is the usual QAbstractSlider signal valueChanged. The signal carries the value (as an integer).

Parameters:parent (QWidget) – Optional parent widget

lineEdit()

Returns the line edit provided by this widget.

Return type:qt.QLineEdit

limitWidget()

Returns the widget displaying axes limits.

Return type:qt.QLabel

setMinimum(value)

Set minimum value

Parameters:value (int) – Minimum value

setMaximum(value)

Set maximum value

Parameters:value (int) – Maximum value

setRange(first, last)

Set minimum/maximum values

Parameters:

• first (int) – Minimum value
• last (int) – Maximum value

setValue(value)

Set value

Parameters:value (int) – value

value()

Get selected value

class silx.gui.widgets.FrameBrowser.FrameBrowser(parent=None, n=None)

Frame browser widget, with 4 buttons/icons and a line edit to provide a way of selecting a frame index in a stack of images.

It can be used in more generic case to select an integer within a range.

Parameters:

• parent (QWidget) – Parent widget
• n (int) – Number of frames. This will set the range of frame indices to 0–n-1. If None, the range is initialized to the default QSlider range (0–99).

lineEdit()

Returns the line edit provided by this widget.

Return type:qt.QLineEdit

limitWidget()

Returns the widget displaying axes limits.

Return type:qt.QLabel

setRange(first, last)

Set minimum and maximum frame indices Initialize the frame index to first. Update the label text to ” limits: first, last”

Parameters:

• first (int) – Minimum frame index
• last (int) – Maximum frame index

setLimits(first, last)

Set minimum and maximum frame indices. Initialize the frame index to first. Update the label text to ” limits: first, last”

Parameters:

• first (int) – Minimum frame index
• last (int) – Maximum frame index

setNFrames(nframes)

Set minimum=0 and maximum=nframes-1 frame numbers. Initialize the frame index to 0. Update the label text to “1 of nframes”

Parameters:nframes (int) – Number of frames

getCurrentIndex()

Get 0-based frame index

setValue(value)

Set 0-based frame index

Parameters:value (int) – Frame number