Mercurial Repositories > eric / file comparison
comparison: Debugger/CallStackViewer.py
Debugger/CallStackViewer.py
- changeset 2622
- 08cc2f31c983
- child 2677
- 3d4277929fb3
- child 2732
- c14fe50c113e
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| 2621:ab5918079c38 | 2622:08cc2f31c983 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2013 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing the Call Stack viewer widget. | |
| 8 """ | |
| 9 | |
| 10 from PyQt4.QtCore import pyqtSignal, Qt, QFileInfo | |
| 11 from PyQt4.QtGui import QTreeWidget, QTreeWidgetItem, QMenu | |
| 12 | |
| 13 from E5Gui.E5Application import e5App | |
| 14 from E5Gui import E5FileDialog, E5MessageBox | |
| 15 | |
| 16 import Utilities | |
| 17 | |
| 18 | |
| 19 class CallStackViewer(QTreeWidget): | |
| 20 """ | |
| 21 Class implementing the Call Stack viewer widget. | |
| 22 | |
| 23 @signal sourceFile(str, int) emitted to show the source of a stack entry | |
| 24 @signal frameSelected(int) emitted to signal the selection of a frame entry | |
| 25 """ | |
| 26 sourceFile = pyqtSignal(str, int) | |
| 27 frameSelected = pyqtSignal(int) | |
| 28 | |
| 29 FilenameRole = Qt.UserRole + 1 | |
| 30 LinenoRole = Qt.UserRole + 2 | |
| 31 | |
| 32 def __init__(self, debugServer, parent=None): | |
| 33 """ | |
| 34 Constructor | |
| 35 | |
| 36 @param debugServer reference to the debug server object (DebugServer) | |
| 37 @param parent reference to the parent widget (QWidget) | |
| 38 """ | |
| 39 super().__init__(parent) | |
| 40 | |
| 41 self.setHeaderHidden(True) | |
| 42 self.setAlternatingRowColors(True) | |
| 43 self.setItemsExpandable(False) | |
| 44 self.setRootIsDecorated(False) | |
| 45 | |
| 46 self.__menu = QMenu(self) | |
| 47 self.__sourceAct = self.__menu.addAction( | |
| 48 self.trUtf8("Show source"), self.__openSource) | |
| 49 self.__menu.addAction(self.trUtf8("Clear"), self.clear) | |
| 50 self.__menu.addSeparator() | |
| 51 self.__menu.addAction(self.trUtf8("Save"), self.__saveStackTrace) | |
| 52 self.setContextMenuPolicy(Qt.CustomContextMenu) | |
| 53 self.customContextMenuRequested.connect(self.__showContextMenu) | |
| 54 | |
| 55 self.__dbs = debugServer | |
| 56 | |
| 57 # file name, line number, function name, arguments | |
| 58 self.__entryFormat = self.trUtf8("File: {0}\nLine: {1}\n{2}{3}") | |
| 59 # file name, line number | |
| 60 self.__entryFormatShort = self.trUtf8("File: {0}\nLine: {1}") | |
| 61 | |
| 62 self.__projectMode = False | |
| 63 self.__project = None | |
| 64 | |
| 65 self.__dbs.clientStack.connect(self.__showCallStack) | |
| 66 self.itemDoubleClicked.connect(self.__itemDoubleClicked) | |
| 67 | |
| 68 def setDebugger(self, debugUI): | |
| 69 """ | |
| 70 Public method to set a reference to the Debug UI. | |
| 71 | |
| 72 @param debugUI reference to the DebugUI object (DebugUI) | |
| 73 """ | |
| 74 debugUI.clientStack.connect(self.__showCallStack) | |
| 75 | |
| 76 def setProjectMode(self, enabled): | |
| 77 """ | |
| 78 Public slot to set the call trace viewer to project mode. | |
| 79 | |
| 80 In project mode the call trace info is shown with project relative | |
| 81 path names. | |
| 82 | |
| 83 @param enabled flag indicating to enable the project mode (boolean) | |
| 84 """ | |
| 85 self.__projectMode = enabled | |
| 86 if enabled and self.__project is None: | |
| 87 self.__project = e5App().getObject("Project") | |
| 88 | |
| 89 def __showContextMenu(self, coord): | |
| 90 """ | |
| 91 Private slot to show the context menu. | |
| 92 | |
| 93 @param coord the position of the mouse pointer (QPoint) | |
| 94 """ | |
| 95 if self.topLevelItemCount() > 0: | |
| 96 itm = self.currentItem() | |
| 97 self.__sourceAct.setEnabled(itm is not None) | |
| 98 self.__menu.popup(self.mapToGlobal(coord)) | |
| 99 | |
| 100 def __showCallStack(self, stack): | |
| 101 """ | |
| 102 Public slot to show the call stack of the program being debugged. | |
| 103 | |
| 104 @param stack list of tuples with call stack data (file name, line number, | |
| 105 function name, formatted argument/values list) | |
| 106 """ | |
| 107 self.clear() | |
| 108 for fname, fline, ffunc, fargs in stack: | |
| 109 if self.__projectMode: | |
| 110 dfname = self.__project.getRelativePath(fname) | |
| 111 else: | |
| 112 dfname = fname | |
| 113 if ffunc and not ffunc.startswith("<"): | |
| 114 # use normal format | |
| 115 itm = QTreeWidgetItem(self, | |
| 116 [self.__entryFormat.format(dfname, fline, ffunc, fargs)]) | |
| 117 else: | |
| 118 # use short format | |
| 119 itm = QTreeWidgetItem(self, | |
| 120 [self.__entryFormatShort.format(dfname, fline)]) | |
| 121 itm.setData(0, self.FilenameRole, fname) | |
| 122 itm.setData(0, self.LinenoRole, fline) | |
| 123 | |
| 124 self.resizeColumnToContents(0) | |
| 125 | |
| 126 def __itemDoubleClicked(self, itm): | |
| 127 """ | |
| 128 Private slot to handle a double click of a stack entry. | |
| 129 | |
| 130 @param itm reference to the double clicked item (QTreeWidgetItem) | |
| 131 """ | |
| 132 fname = itm.data(0, self.FilenameRole) | |
| 133 fline = itm.data(0, self.LinenoRole) | |
| 134 if self.__projectMode: | |
| 135 fname = self.__project.getAbsolutePath(fname) | |
| 136 self.sourceFile.emit(fname, fline) | |
| 137 | |
| 138 index = self.indexOfTopLevelItem(itm) | |
| 139 self.frameSelected.emit(index) | |
| 140 | |
| 141 def __openSource(self): | |
| 142 """ | |
| 143 Private slot to show the source for the selected stack entry. | |
| 144 """ | |
| 145 itm = self.currentItem() | |
| 146 if itm: | |
| 147 self.__itemDoubleClicked(itm) | |
| 148 | |
| 149 def __saveStackTrace(self): | |
| 150 """ | |
| 151 Private slot to save the stack trace info to a file. | |
| 152 """ | |
| 153 if self.topLevelItemCount() > 0: | |
| 154 fname, selectedFilter = E5FileDialog.getSaveFileNameAndFilter( | |
| 155 self, | |
| 156 self.trUtf8("Save Call Stack Info"), | |
| 157 "", | |
| 158 self.trUtf8("Text Files (*.txt);;All Files (*)"), | |
| 159 None, | |
| 160 E5FileDialog.Options(E5FileDialog.DontConfirmOverwrite)) | |
| 161 if fname: | |
| 162 ext = QFileInfo(fname).suffix() | |
| 163 if not ext: | |
| 164 ex = selectedFilter.split("(*")[1].split(")")[0] | |
| 165 if ex: | |
| 166 fname += ex | |
| 167 if QFileInfo(fname).exists(): | |
| 168 res = E5MessageBox.yesNo(self, | |
| 169 self.trUtf8("Save Call Stack Info"), | |
| 170 self.trUtf8("<p>The file <b>{0}</b> already exists." | |
| 171 " Overwrite it?</p>").format(fname), | |
| 172 icon=E5MessageBox.Warning) | |
| 173 if not res: | |
| 174 return | |
| 175 fname = Utilities.toNativeSeparators(fname) | |
| 176 | |
| 177 try: | |
| 178 f = open(fname, "w", encoding="utf-8") | |
| 179 itm = self.topLevelItem(0) | |
| 180 while itm is not None: | |
| 181 f.write("{0}\n".format(itm.text(0))) | |
| 182 f.write(78 * "=" + "\n") | |
| 183 itm = self.itemBelow(itm) | |
| 184 f.close() | |
| 185 except IOError as err: | |
| 186 E5MessageBox.critical(self, | |
| 187 self.trUtf8("Error saving Call Stack Info"), | |
| 188 self.trUtf8("""<p>The call stack info could not be written""" | |
| 189 """ to <b>{0}</b></p><p>Reason: {1}</p>""")\ | |
| 190 .format(fname, str(err))) |
