Mercurial Repositories > eric / file comparison
comparison: eric7/E5Gui/E5Application.py
eric7/E5Gui/E5Application.py
- branch
- eric7
- changeset 8312
- 800c432b34c8
- parent 8218
- 7c09585bd960
- child 8318
- 962bce857696
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| 8311:4e8b98454baa | 8312:800c432b34c8 |
|---|---|
| 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 PyQt5.QtCore import Qt, QCoreApplication | |
| 11 from PyQt5.QtGui import QPalette | |
| 12 from PyQt5.QtWidgets import QApplication | |
| 13 | |
| 14 QCoreApplication.setAttribute( | |
| 15 Qt.ApplicationAttribute.AA_EnableHighDpiScaling, True) | |
| 16 QCoreApplication.setAttribute( | |
| 17 Qt.ApplicationAttribute.AA_ShareOpenGLContexts, True) | |
| 18 | |
| 19 | |
| 20 class E5Application(QApplication): | |
| 21 """ | |
| 22 Eric application class with an object registry. | |
| 23 """ | |
| 24 def __init__(self, argv): | |
| 25 """ | |
| 26 Constructor | |
| 27 | |
| 28 @param argv command line arguments | |
| 29 @type list | |
| 30 """ | |
| 31 super().__init__(argv) | |
| 32 | |
| 33 QCoreApplication.setAttribute( | |
| 34 Qt.ApplicationAttribute.AA_DontCreateNativeWidgetSiblings, True) | |
| 35 QCoreApplication.setAttribute( | |
| 36 Qt.ApplicationAttribute.AA_UseHighDpiPixmaps, True) | |
| 37 | |
| 38 self.__objectRegistry = {} | |
| 39 self.__pluginObjectRegistry = {} | |
| 40 | |
| 41 def registerObject(self, name, objectRef): | |
| 42 """ | |
| 43 Public method to register an object in the object registry. | |
| 44 | |
| 45 @param name name of the object | |
| 46 @type str | |
| 47 @param objectRef reference to the object | |
| 48 @type any | |
| 49 @exception KeyError raised when the given name is already in use | |
| 50 """ | |
| 51 if name in self.__objectRegistry: | |
| 52 raise KeyError('Object "{0}" already registered.'.format(name)) | |
| 53 else: | |
| 54 self.__objectRegistry[name] = objectRef | |
| 55 | |
| 56 def getObject(self, name): | |
| 57 """ | |
| 58 Public method to get a reference to a registered object. | |
| 59 | |
| 60 @param name name of the object | |
| 61 @type str | |
| 62 @return reference to the registered object | |
| 63 @rtype any | |
| 64 @exception KeyError raised when the given name is not known | |
| 65 """ | |
| 66 if name not in self.__objectRegistry: | |
| 67 raise KeyError('Object "{0}" is not registered.'.format(name)) | |
| 68 | |
| 69 return self.__objectRegistry[name] | |
| 70 | |
| 71 def registerPluginObject(self, name, objectRef, pluginType=None): | |
| 72 """ | |
| 73 Public method to register a plugin object in the object registry. | |
| 74 | |
| 75 @param name name of the plugin object | |
| 76 @type str | |
| 77 @param objectRef reference to the plugin object | |
| 78 @type any | |
| 79 @param pluginType type of the plugin object | |
| 80 @type str | |
| 81 @exception KeyError raised when the given name is already in use | |
| 82 """ | |
| 83 if name in self.__pluginObjectRegistry: | |
| 84 raise KeyError( | |
| 85 'Pluginobject "{0}" already registered.'.format(name)) | |
| 86 else: | |
| 87 self.__pluginObjectRegistry[name] = (objectRef, pluginType) | |
| 88 | |
| 89 def unregisterPluginObject(self, name): | |
| 90 """ | |
| 91 Public method to unregister a plugin object in the object registry. | |
| 92 | |
| 93 @param name name of the plugin object | |
| 94 @type str | |
| 95 """ | |
| 96 if name in self.__pluginObjectRegistry: | |
| 97 del self.__pluginObjectRegistry[name] | |
| 98 | |
| 99 def getPluginObject(self, name): | |
| 100 """ | |
| 101 Public method to get a reference to a registered plugin object. | |
| 102 | |
| 103 @param name name of the plugin object | |
| 104 @type str | |
| 105 @return reference to the registered plugin object | |
| 106 @rtype any | |
| 107 @exception KeyError raised when the given name is not known | |
| 108 """ | |
| 109 if name not in self.__pluginObjectRegistry: | |
| 110 raise KeyError( | |
| 111 'Pluginobject "{0}" is not registered.'.format(name)) | |
| 112 | |
| 113 return self.__pluginObjectRegistry[name][0] | |
| 114 | |
| 115 def getPluginObjects(self): | |
| 116 """ | |
| 117 Public method to get a list of (name, reference) pairs of all | |
| 118 registered plugin objects. | |
| 119 | |
| 120 @return list of (name, reference) pairs | |
| 121 @rtype list of (str, any) | |
| 122 """ | |
| 123 objects = [] | |
| 124 for name in self.__pluginObjectRegistry: | |
| 125 objects.append((name, self.__pluginObjectRegistry[name][0])) | |
| 126 return objects | |
| 127 | |
| 128 def getPluginObjectType(self, name): | |
| 129 """ | |
| 130 Public method to get the type of a registered plugin object. | |
| 131 | |
| 132 @param name name of the plugin object | |
| 133 @type str | |
| 134 @return type of the plugin object | |
| 135 @rtype str | |
| 136 @exception KeyError raised when the given name is not known | |
| 137 """ | |
| 138 if name not in self.__pluginObjectRegistry: | |
| 139 raise KeyError( | |
| 140 'Pluginobject "{0}" is not registered.'.format(name)) | |
| 141 | |
| 142 return self.__pluginObjectRegistry[name][1] | |
| 143 | |
| 144 def usesDarkPalette(self): | |
| 145 """ | |
| 146 Public method to check, if the application uses a palette with a dark | |
| 147 background. | |
| 148 | |
| 149 @return flag indicating the use of a palette with a dark background | |
| 150 @rtype bool | |
| 151 """ | |
| 152 palette = self.palette() | |
| 153 lightness = palette.color(QPalette.ColorRole.Window).lightness() | |
| 154 return lightness <= 128 | |
| 155 | |
| 156 e5App = QCoreApplication.instance |
