mirror of
https://github.com/wassname/scikit-image.git
synced 2026-07-03 12:37:01 +08:00
Tony S Yu
86b428952d
The `ptype` parameter of widget can now be set to 'plugin'. When this is the case, the plugin will set a plugin attribute whenever the widget is updated. As an example, this commit adds a ComboBox widget which is hooked into the overlay color of the OverlayPlugin.
84 lines
2.8 KiB
Python
84 lines
2.8 KiB
Python
"""
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Widgets for interacting with ImageViewer.
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These widgets should be added to a Plugin subclass using its `add_widget`
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method. The Plugin will delegate action based on the widget's parameter type
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specified by its `ptype` attribute, which can be:
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'arg' : positional argument passed to Plugin's `filter_image` method.
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'kwarg' : keyword argument passed to Plugin's `filter_image` method.
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'plugin' : attribute of Plugin. You'll probably need to make the attribute
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a class property that updates the display.
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"""
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from PyQt4 import QtGui
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from PyQt4 import QtCore
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from skimage.io._plugins.q_color_mixer import IntelligentSlider
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class Slider(IntelligentSlider):
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"""Slider widget.
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Parameters
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----------
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name : str
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Name of slider parameter. If this parameter is passed as a keyword
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argument, it must match the name of that keyword argument (spaces are
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replaced with underscores). In addition, this name is displayed as the
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name of the slider.
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low, high : float
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Range of slider values.
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ptype : {'arg' | 'kwarg' | 'plugin'}
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Parameter type.
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"""
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def __init__(self, name, low, high, ptype='kwarg', callback=None, **kwargs):
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self.ptype = ptype
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kwargs.setdefault('orientation', 'horizontal')
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scale = (high - low) / 1000.0
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super(Slider, self).__init__(name, scale, low, callback, **kwargs)
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class ComboBox(QtGui.QWidget):
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"""ComboBox widget for selecting among a list of choices.
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Parameters
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----------
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name : str
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Name of slider parameter. If this parameter is passed as a keyword
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argument, it must match the name of that keyword argument (spaces are
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replaced with underscores). In addition, this name is displayed as the
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name of the slider.
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items: list
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Allowed parameter values.
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ptype : {'arg' | 'kwarg' | 'plugin'}
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Parameter type.
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"""
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def __init__(self, name, items, ptype='kwarg', callback=None):
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super(ComboBox, self).__init__()
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self.ptype = ptype
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self.callback = callback
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self.name = name
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self.name_label = QtGui.QLabel()
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self.name_label.setText(self.name)
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self.name_label.setAlignment(QtCore.Qt.AlignLeft)
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self._combo_box = QtGui.QComboBox()
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self._combo_box.addItems(items)
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self.layout = QtGui.QHBoxLayout(self)
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self.layout.addWidget(self.name_label)
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self.layout.addWidget(self._combo_box, alignment=QtCore.Qt.AlignLeft)
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self._combo_box.currentIndexChanged.connect(self._value_changed)
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# self.connect(self._combo_box,
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# SIGNAL("currentIndexChanged(int)"), self.updateUi)
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@property
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def val(self):
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return self._combo_box.value()
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def _value_changed(self, value):
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self.callback(self.name, value)
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