Source code for layer_viewer.settings_widget

import pyqtgraph as pg
from pyqtgraph.Qt import QtCore, QtGui
import pyqtgraph.parametertree.parameterTypes as pTypes
from pyqtgraph.parametertree import Parameter, ParameterTree, ParameterItem, registerParameterType



class SettingsWidget(ParameterTree):
    def __init__(self, *args, **kwargs):
        super(SettingsWidget, self).__init__(*args, **kwargs)



        self.qtSettings = QtCore.QSettings('layer_viewer','settings')
  


        useOpenGl = self.qtSettings.value('Use OpenGL',True)
        useAA = self.qtSettings.value('Use Anti-Aliasing',False)
        pattern = self.qtSettings.value('bg-type','LinearGradientPattern')

        params = [
            {'name': 'Global Options', 'type': 'group', 'children': [
                {'name': 'Use OpenGL', 'type': 'bool', 'value': useOpenGl, 'tip': "can lead to speedups if enabled"},
                {'name': 'Use Anti-Aliasing', 'type': 'bool', 'value': useAA},
            ]},
            {'name': 'ViewBox Options', 'type': 'group', 'children': [
                {'name': 'ViewBox Background', 'type': 'group', 'children': [
                    {
                        'name': 'bg-type', 'type': 'list', 'values': 
                        [
                            'SolidPattern',
                            'LinearGradientPattern',
                            'Dense1Pattern',
                            'Dense2Pattern',
                            'Dense3Pattern',
                            'Dense4Pattern',
                            'Dense5Pattern',
                            'Dense6Pattern',
                            'Dense7Pattern',
                            'NoBrush',
                            'HorPattern',
                            'VerPattern',
                            'CrossPattern',
                            'BDiagPattern',
                            'FDiagPattern',
                            'DiagCrossPattern'
                        ], 
                        'value': pattern
                    },
                    {'name': 'bg-color 1', 'type': 'color', 'value': (180,)*3, 'tip': "background color 1"},
                    {'name': 'bg-color 2', 'type': 'color', 'value': (60 ,)*3, 'tip': "background color 2"},
                ]},
                {'name': 'Show Axis', 'type': 'bool', 'value': False},
            ]},
            # {'name': 'Save/Restore functionality', 'type': 'group', 'children': [
            #     {'name': 'Save State', 'type': 'action'},
            #     {'name': 'Restore State', 'type': 'action', 'children': [
            #         {'name': 'Add missing items', 'type': 'bool', 'value': True},
            #         {'name': 'Remove extra items', 'type': 'bool', 'value': True},
            #     ]},
            # ]}
        ]

        self.p = Parameter.create(name='params', type='group', children=params)

        self.setParameters(self.p, showTop=False)
        self.setWindowTitle('Layer Viewer Settings')

    def __getitem__(self, key):
        return self.p[key]