--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/E5Gui/E5ErrorMessage.py Fri May 31 13:33:57 2013 +0200
@@ -0,0 +1,120 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2013 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a specialized error message dialog.
+"""
+
+from PyQt4.QtCore import qInstallMsgHandler, QCoreApplication, QtDebugMsg, \
+ QtWarningMsg, QtCriticalMsg, QtFatalMsg, QThread, QMetaObject, Qt, Q_ARG
+from PyQt4.QtGui import QErrorMessage, qApp
+
+import Utilities
+
+
+__msgHandlerDialog = None
+__origMsgHandler = None
+
+
+class E5ErrorMessage(QErrorMessage):
+ """
+ Class implementing a specialized error message dialog.
+ """
+ def __init__(self, parent=None):
+ """
+ Constructor
+
+ @param parent reference to the parent widget (QWidget)
+ """
+ super().__init__(parent)
+
+ # TODO: make this list configurable by the user
+ self.__filters = [
+ "QFont::",
+ "QCocoaMenu::removeMenuItem",
+ "QCocoaMenu::insertNative",
+ ",type id:"
+ ]
+
+ def __filterMessage(self, message):
+ """
+ Private method to filter messages.
+
+ @param message message to be checked (string)
+ @return flag indicating that the message should be filtered out (boolean)
+ """
+ for filter in self.__filters:
+ if filter in message:
+ return True
+
+ return False
+
+ def showMessage(self, message, msgType=""):
+ """
+ Public method to show a message.
+
+ @param message error message to be shown (string)
+ @param msgType type of the error message (string)
+ """
+ if not self.__filterMessage(message):
+ if msgType:
+ super().showMessage(message, msgType)
+ else:
+ super().showMessage(message)
+
+
+def messageHandler(msgType, message):
+ """
+ Module function handling messages.
+
+ @param msgType type of the message (integer, QtMsgType)
+ @param message message to be shown (bytes)
+ """
+ if __msgHandlerDialog:
+ if msgType == QtDebugMsg:
+ messageType = QCoreApplication.translate("E5ErrorMessage", "Debug Message:")
+ elif msgType == QtWarningMsg:
+ messageType = QCoreApplication.translate("E5ErrorMessage", "Warning:")
+ elif msgType == QtCriticalMsg:
+ messageType = QCoreApplication.translate("E5ErrorMessage", "Critical:")
+ elif msgType == QtFatalMsg:
+ messageType = QCoreApplication.translate("E5ErrorMessage", "Fatal Error:")
+ msg = "<p><b>{0}</b></p><p>{1}</p>".format(
+ messageType, Utilities.html_uencode(message.decode()))
+ if QThread.currentThread() == qApp.thread():
+ __msgHandlerDialog.showMessage(msg)
+ else:
+ QMetaObject.invokeMethod(
+ __msgHandlerDialog,
+ "showMessage",
+ Qt.QueuedConnection,
+ Q_ARG(str, msg))
+ elif __origMsgHandler:
+ __origMsgHandler(msgType, message)
+ else:
+ if msgType == QtDebugMsg:
+ messageType = QCoreApplication.translate("E5ErrorMessage", "Debug Message")
+ elif msgType == QtWarningMsg:
+ messageType = QCoreApplication.translate("E5ErrorMessage", "Warning")
+ elif msgType == QtCriticalMsg:
+ messageType = QCoreApplication.translate("E5ErrorMessage", "Critical")
+ elif msgType == QtFatalMsg:
+ messageType = QCoreApplication.translate("E5ErrorMessage", "Fatal Error")
+ print("{0}: {1}".format(messageType, message.decode()))
+
+
+def qtHandler():
+ """
+ Module function to install an E5ErrorMessage dialog as the global
+ message handler.
+ """
+ global __msgHandlerDialog, __origMsgHandler
+
+ if __msgHandlerDialog is None:
+ # Install an E5ErrorMessage dialog as the global message handler.
+ __msgHandlerDialog = E5ErrorMessage()
+ __origMsgHandler = qInstallMsgHandler(messageHandler)
+
+ return __msgHandlerDialog
