Mercurial Repositories > eric / file diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eric7/Debugger/ExceptionLogger.py	Sat May 15 18:45:04 2021 +0200
@@ -0,0 +1,154 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2002 - 2021 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing the Exception Logger widget.
+"""
+
+import contextlib
+
+from PyQt5.QtCore import pyqtSignal, Qt
+from PyQt5.QtWidgets import QTreeWidget, QTreeWidgetItem, QMenu
+
+from E5Gui.E5Application import e5App
+
+
+class ExceptionLogger(QTreeWidget):
+    """
+    Class implementing the Exception Logger widget.
+    
+    This class displays a log of all exceptions having occured during
+    a debugging session.
+    
+    @signal sourceFile(string, int) emitted to open a source file at a line
+    """
+    sourceFile = pyqtSignal(str, int)
+    
+    def __init__(self, parent=None):
+        """
+        Constructor
+        
+        @param parent the parent widget of this widget
+        """
+        super().__init__(parent)
+        self.setObjectName("ExceptionLogger")
+        
+        self.setWindowTitle(self.tr("Exceptions"))
+        
+        self.setWordWrap(True)
+        self.setRootIsDecorated(True)
+        self.setHeaderLabels([self.tr("Exception")])
+        self.setSortingEnabled(False)
+
+        self.setContextMenuPolicy(Qt.ContextMenuPolicy.CustomContextMenu)
+        self.customContextMenuRequested.connect(self.__showContextMenu)
+        self.itemDoubleClicked.connect(self.__itemDoubleClicked)
+
+        self.setWhatsThis(self.tr(
+            """<b>Exceptions Logger</b>"""
+            """<p>This windows shows a trace of all exceptions, that have"""
+            """ occured during the last debugging session. Initially only"""
+            """ the exception type and exception message are shown. After"""
+            """ the expansion of this entry, the complete call stack as"""
+            """ reported by the client is show with the most recent call"""
+            """ first.</p>"""
+        ))
+        
+        self.menu = QMenu(self)
+        self.menu.addAction(self.tr("Show source"), self.__openSource)
+        self.menu.addAction(self.tr("Clear"), self.clear)
+        self.menu.addSeparator()
+        self.menu.addAction(self.tr("Configure..."), self.__configure)
+        
+        self.backMenu = QMenu(self)
+        self.backMenu.addAction(self.tr("Clear"), self.clear)
+        self.backMenu.addSeparator()
+        self.backMenu.addAction(self.tr("Configure..."), self.__configure)
+        
+    def __itemDoubleClicked(self, itm):
+        """
+        Private slot to handle the double click of an item.
+        
+        @param itm the item that was double clicked(QTreeWidgetItem), ignored
+        """
+        self.__openSource()
+
+    def __showContextMenu(self, coord):
+        """
+        Private slot to show the context menu of the listview.
+        
+        @param coord the global coordinates of the mouse pointer (QPoint)
+        """
+        itm = self.itemAt(coord)
+        coord = self.mapToGlobal(coord)
+        if itm is None:
+            self.backMenu.popup(coord)
+        else:
+            self.menu.popup(coord)
+            
+    def addException(self, exceptionType, exceptionMessage, stackTrace,
+                     debuggerId):
+        """
+        Public slot to handle the arrival of a new exception.
+        
+        @param exceptionType type of exception raised
+        @type str
+        @param exceptionMessage message given by the exception
+        @type str
+        @param stackTrace list of stack entries
+        @type list
+        @param debuggerId ID of the debugger backend
+        @type str
+        """
+        itm = QTreeWidgetItem(self)
+        if exceptionType is None:
+            itm.setText(
+                0, self.tr('{0}: An unhandled exception occured.'
+                           ' See the shell window for details.')
+                .format(debuggerId))
+            return
+        
+        text = (
+            self.tr("{0}: {1}").format(debuggerId, exceptionType)
+            if not exceptionMessage else
+            self.tr("{0}: {1}, {2}").format(debuggerId, exceptionType,
+                                            exceptionMessage)
+        )
+        
+        itm.setText(0, text)
+        itm.setToolTip(0, text)
+        
+        # now add the call stack, most recent call first
+        for entry in stackTrace:
+            excitm = QTreeWidgetItem(itm)
+            excitm.setText(0, "{0}, {1:d}".format(entry[0], entry[1]))
+            
+    def debuggingStarted(self):
+        """
+        Public slot to clear the listview upon starting a new debugging
+        session.
+        """
+        self.clear()
+        
+    def __openSource(self):
+        """
+        Private slot to handle a double click on an entry.
+        """
+        itm = self.currentItem()
+        
+        if itm.parent() is None:
+            return
+            
+        entry = itm.text(0)
+        entryList = entry.split(",")
+        with contextlib.suppress(IndexError, ValueError):
+            self.sourceFile.emit(entryList[0], int(entryList[1]))
+    
+    def __configure(self):
+        """
+        Private method to open the configuration dialog.
+        """
+        e5App().getObject("UserInterface").showPreferences(
+            "debuggerGeneralPage")