Mercurial Repositories > eric / file diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/E5Gui/E5ErrorMessage.py	Mon Jul 08 22:36:10 2013 +0200
@@ -0,0 +1,175 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2013 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a specialized error message dialog.
+"""
+
+from __future__ import unicode_literals    # __IGNORE_WARNING__
+
+from PyQt4.QtCore import qInstallMsgHandler, QCoreApplication, QtDebugMsg, \
+    QtWarningMsg, QtCriticalMsg, QtFatalMsg, QThread, QMetaObject, Qt, Q_ARG, \
+    QSettings
+from PyQt4.QtGui import QErrorMessage, qApp, QDialog
+
+import Globals
+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(E5ErrorMessage, self).__init__(parent)
+        
+        self.settings = QSettings(QSettings.IniFormat,
+            QSettings.UserScope,
+            Globals.settingsNameOrganization,
+            "eric5messagefilters")
+        
+        self.__defaultFilters = [
+            "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.settings.value("MessageFilters", self.__defaultFilters):
+            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(E5ErrorMessage, self).showMessage(message, msgType)
+            else:
+                super(E5ErrorMessage, self).showMessage(message)
+    
+    def editMessageFilters(self):
+        """
+        Public method to edit the list of message filters.
+        """
+        from .E5ErrorMessageFilterDialog import E5ErrorMessageFilterDialog
+        dlg = E5ErrorMessageFilterDialog(
+            self.settings.value("MessageFilters", self.__defaultFilters))
+        if dlg.exec_() == QDialog.Accepted:
+            filters = dlg.getFilters()
+            self.settings.setValue("MessageFilters", filters)
+
+
+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:
+        try:
+            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:")
+            if isinstance(message, bytes):
+                message = message.decode()
+            message = message.replace("\r\n", "<br/>")\
+                             .replace("\n", "<br/>")\
+                             .replace("\r", "<br/>")
+            msg = "<p><b>{0}</b></p><p>{1}</p>".format(
+                messageType, Utilities.html_uencode(message))
+            if QThread.currentThread() == qApp.thread():
+                __msgHandlerDialog.showMessage(msg)
+            else:
+                QMetaObject.invokeMethod(
+                    __msgHandlerDialog,
+                    "showMessage",
+                    Qt.QueuedConnection,
+                    Q_ARG(str, msg))
+            return
+        except RuntimeError:
+            pass
+    elif __origMsgHandler:
+        __origMsgHandler(msgType, message)
+        return
+    
+    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")
+    if isinstance(message, bytes):
+        message = message.decode()
+    print("{0}: {1}".format(messageType, message))
+
+
+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
+
+
+def editMessageFilters():
+    """
+    Module function to edit the list of message filters.
+    """
+    if __msgHandlerDialog:
+        __msgHandlerDialog.editMessageFilters()
+    else:
+        print(QCoreApplication.translate("E5ErrorMessage",
+            "No message handler installed."))
+
+
+def messageHandlerInstalled():
+    """
+    Module function to check, if a message handler was installed.
+    
+    @return flag indicating an installed message handler (boolean)
+    """
+    return __msgHandlerDialog is not None