Mercurial Repositories > eric / file comparison
comparison: eric7/EricWidgets/EricApplication.py
eric7/EricWidgets/EricApplication.py
- branch
- eric7
- changeset 8358
- 144a6b854f70
- parent 8356
- 68ec9c3d4de5
- child 8729
- 226da2e26a84
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| 8357:a081458cc57b | 8358:144a6b854f70 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2009 - 2021 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Class implementing a specialized application class. | |
| 8 """ | |
| 9 | |
| 10 from PyQt6.QtCore import Qt, QCoreApplication | |
| 11 from PyQt6.QtGui import QPalette | |
| 12 from PyQt6.QtWidgets import QApplication | |
| 13 | |
| 14 QCoreApplication.setAttribute( | |
| 15 Qt.ApplicationAttribute.AA_ShareOpenGLContexts, True) | |
| 16 | |
| 17 | |
| 18 class EricApplication(QApplication): | |
| 19 """ | |
| 20 Eric application class with an object registry. | |
| 21 """ | |
| 22 def __init__(self, argv): | |
| 23 """ | |
| 24 Constructor | |
| 25 | |
| 26 @param argv command line arguments | |
| 27 @type list | |
| 28 """ | |
| 29 super().__init__(argv) | |
| 30 | |
| 31 QCoreApplication.setAttribute( | |
| 32 Qt.ApplicationAttribute.AA_DontCreateNativeWidgetSiblings, True) | |
| 33 | |
| 34 self.__objectRegistry = {} | |
| 35 self.__pluginObjectRegistry = {} | |
| 36 | |
| 37 def registerObject(self, name, objectRef): | |
| 38 """ | |
| 39 Public method to register an object in the object registry. | |
| 40 | |
| 41 @param name name of the object | |
| 42 @type str | |
| 43 @param objectRef reference to the object | |
| 44 @type any | |
| 45 @exception KeyError raised when the given name is already in use | |
| 46 """ | |
| 47 if name in self.__objectRegistry: | |
| 48 raise KeyError('Object "{0}" already registered.'.format(name)) | |
| 49 else: | |
| 50 self.__objectRegistry[name] = objectRef | |
| 51 | |
| 52 def getObject(self, name): | |
| 53 """ | |
| 54 Public method to get a reference to a registered object. | |
| 55 | |
| 56 @param name name of the object | |
| 57 @type str | |
| 58 @return reference to the registered object | |
| 59 @rtype any | |
| 60 @exception KeyError raised when the given name is not known | |
| 61 """ | |
| 62 if name not in self.__objectRegistry: | |
| 63 raise KeyError('Object "{0}" is not registered.'.format(name)) | |
| 64 | |
| 65 return self.__objectRegistry[name] | |
| 66 | |
| 67 def registerPluginObject(self, name, objectRef, pluginType=None): | |
| 68 """ | |
| 69 Public method to register a plugin object in the object registry. | |
| 70 | |
| 71 @param name name of the plugin object | |
| 72 @type str | |
| 73 @param objectRef reference to the plugin object | |
| 74 @type any | |
| 75 @param pluginType type of the plugin object | |
| 76 @type str | |
| 77 @exception KeyError raised when the given name is already in use | |
| 78 """ | |
| 79 if name in self.__pluginObjectRegistry: | |
| 80 raise KeyError( | |
| 81 'Pluginobject "{0}" already registered.'.format(name)) | |
| 82 else: | |
| 83 self.__pluginObjectRegistry[name] = (objectRef, pluginType) | |
| 84 | |
| 85 def unregisterPluginObject(self, name): | |
| 86 """ | |
| 87 Public method to unregister a plugin object in the object registry. | |
| 88 | |
| 89 @param name name of the plugin object | |
| 90 @type str | |
| 91 """ | |
| 92 if name in self.__pluginObjectRegistry: | |
| 93 del self.__pluginObjectRegistry[name] | |
| 94 | |
| 95 def getPluginObject(self, name): | |
| 96 """ | |
| 97 Public method to get a reference to a registered plugin object. | |
| 98 | |
| 99 @param name name of the plugin object | |
| 100 @type str | |
| 101 @return reference to the registered plugin object | |
| 102 @rtype any | |
| 103 @exception KeyError raised when the given name is not known | |
| 104 """ | |
| 105 if name not in self.__pluginObjectRegistry: | |
| 106 raise KeyError( | |
| 107 'Pluginobject "{0}" is not registered.'.format(name)) | |
| 108 | |
| 109 return self.__pluginObjectRegistry[name][0] | |
| 110 | |
| 111 def getPluginObjects(self): | |
| 112 """ | |
| 113 Public method to get a list of (name, reference) pairs of all | |
| 114 registered plugin objects. | |
| 115 | |
| 116 @return list of (name, reference) pairs | |
| 117 @rtype list of (str, any) | |
| 118 """ | |
| 119 objects = [] | |
| 120 for name in self.__pluginObjectRegistry: | |
| 121 objects.append((name, self.__pluginObjectRegistry[name][0])) | |
| 122 return objects | |
| 123 | |
| 124 def getPluginObjectType(self, name): | |
| 125 """ | |
| 126 Public method to get the type of a registered plugin object. | |
| 127 | |
| 128 @param name name of the plugin object | |
| 129 @type str | |
| 130 @return type of the plugin object | |
| 131 @rtype str | |
| 132 @exception KeyError raised when the given name is not known | |
| 133 """ | |
| 134 if name not in self.__pluginObjectRegistry: | |
| 135 raise KeyError( | |
| 136 'Pluginobject "{0}" is not registered.'.format(name)) | |
| 137 | |
| 138 return self.__pluginObjectRegistry[name][1] | |
| 139 | |
| 140 def usesDarkPalette(self): | |
| 141 """ | |
| 142 Public method to check, if the application uses a palette with a dark | |
| 143 background. | |
| 144 | |
| 145 @return flag indicating the use of a palette with a dark background | |
| 146 @rtype bool | |
| 147 """ | |
| 148 palette = self.palette() | |
| 149 lightness = palette.color(QPalette.ColorRole.Window).lightness() | |
| 150 return lightness <= 128 | |
| 151 | |
| 152 ericApp = QCoreApplication.instance |
