diff -r 000000000000 -r de9c2efb9d02 Debugger/BreakPointModel.py --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Debugger/BreakPointModel.py Mon Dec 28 16:03:33 2009 +0000 @@ -0,0 +1,286 @@ +# -*- coding: utf-8 -*- + +# Copyright (c) 2006 - 2009 Detlev Offenbach <detlev@die-offenbachs.de> +# + +""" +Module implementing the Breakpoint model. +""" + +from PyQt4.QtCore import * + +class BreakPointModel(QAbstractItemModel): + """ + Class implementing a custom model for breakpoints. + """ + def __init__(self, parent = None): + """ + Constructor + + @param reference to the parent widget (QObject) + """ + QObject.__init__(self, parent) + + self.breakpoints = [] + self.header = [ + QVariant(self.trUtf8("Filename")), + QVariant(self.trUtf8("Line")), + QVariant(self.trUtf8('Condition')), + QVariant(self.trUtf8('Temporary')), + QVariant(self.trUtf8('Enabled')), + QVariant(self.trUtf8('Ignore Count')), + ] + self.alignments = [QVariant(Qt.Alignment(Qt.AlignLeft)), + QVariant(Qt.Alignment(Qt.AlignRight)), + QVariant(Qt.Alignment(Qt.AlignLeft)), + QVariant(Qt.Alignment(Qt.AlignHCenter)), + QVariant(Qt.Alignment(Qt.AlignHCenter)), + QVariant(Qt.Alignment(Qt.AlignRight)), + QVariant(Qt.Alignment(Qt.AlignHCenter)), + ] + + def columnCount(self, parent = QModelIndex()): + """ + Public method to get the current column count. + + @return column count (integer) + """ + return len(self.header) + 1 + + def rowCount(self, parent = QModelIndex()): + """ + Public method to get the current row count. + + @return row count (integer) + """ + # we do not have a tree, parent should always be invalid + if not parent.isValid(): + return len(self.breakpoints) + else: + return 0 + + def data(self, index, role): + """ + Public method to get the requested data. + + @param index index of the requested data (QModelIndex) + @param role role of the requested data (Qt.ItemDataRole) + @return the requested data (QVariant) + """ + if not index.isValid(): + return QVariant() + + if role == Qt.DisplayRole or role == Qt.ToolTipRole: + if index.column() < len(self.header): + return QVariant(self.breakpoints[index.row()][index.column()]) + + if role == Qt.TextAlignmentRole: + if index.column() < len(self.alignments): + return self.alignments[index.column()] + + return QVariant() + + def flags(self, index): + """ + Public method to get item flags. + + @param index index of the requested flags (QModelIndex) + @return item flags for the given index (Qt.ItemFlags) + """ + if not index.isValid(): + return Qt.ItemIsEnabled + + return Qt.ItemIsEnabled | Qt.ItemIsSelectable + + def headerData(self, section, orientation, role = Qt.DisplayRole): + """ + Public method to get header data. + + @param section section number of the requested header data (integer) + @param orientation orientation of the header (Qt.Orientation) + @param role role of the requested data (Qt.ItemDataRole) + @return header data (QVariant) + """ + if orientation == Qt.Horizontal and role == Qt.DisplayRole: + if section >= len(self.header): + return QVariant("") + else: + return self.header[section] + + return QVariant() + + def index(self, row, column, parent = QModelIndex()): + """ + Public method to create an index. + + @param row row number for the index (integer) + @param column column number for the index (integer) + @param parent index of the parent item (QModelIndex) + @return requested index (QModelIndex) + """ + if parent.isValid() or \ + row < 0 or row >= len(self.breakpoints) or \ + column < 0 or column >= len(self.header): + return QModelIndex() + + return self.createIndex(row, column, self.breakpoints[row]) + + def parent(self, index): + """ + Public method to get the parent index. + + @param index index of item to get parent (QModelIndex) + @return index of parent (QModelIndex) + """ + return QModelIndex() + + def hasChildren(self, parent = QModelIndex()): + """ + Public method to check for the presence of child items. + + @param parent index of parent item (QModelIndex) + @return flag indicating the presence of child items (boolean) + """ + if not parent.isValid(): + return len(self.breakpoints) > 0 + else: + return False + + ############################################################################ + + def addBreakPoint(self, fn, line, properties): + """ + Public method to add a new breakpoint to the list. + + @param fn filename of the breakpoint (string) + @param line line number of the breakpoint (integer) + @param properties properties of the breakpoint + (tuple of condition (string), temporary flag (bool), + enabled flag (bool), ignore count (integer)) + """ + bp = [fn, line] + list(properties) + cnt = len(self.breakpoints) + self.beginInsertRows(QModelIndex(), cnt, cnt) + self.breakpoints.append(bp) + self.endInsertRows() + + def setBreakPointByIndex(self, index, fn, line, properties): + """ + Public method to set the values of a breakpoint given by index. + + @param index index of the breakpoint (QModelIndex) + @param fn filename of the breakpoint (string) + @param line line number of the breakpoint (integer) + @param properties properties of the breakpoint + (tuple of condition (string), temporary flag (bool), + enabled flag (bool), ignore count (integer)) + """ + if index.isValid(): + row = index.row() + index1 = self.createIndex(row, 0, self.breakpoints[row]) + index2 = self.createIndex(row, len(self.breakpoints[row]), + self.breakpoints[row]) + self.emit(\ + SIGNAL("dataAboutToBeChanged(const QModelIndex &, const QModelIndex &)"), + index1, index2) + i = 0 + for value in [fn, line] + list(properties): + self.breakpoints[row][i] = value + i += 1 + self.emit(SIGNAL("dataChanged(const QModelIndex &, const QModelIndex &)"), + index1, index2) + + def setBreakPointEnabledByIndex(self, index, enabled): + """ + Public method to set the enabled state of a breakpoint given by index. + + @param index index of the breakpoint (QModelIndex) + @param enabled flag giving the enabled state (boolean) + """ + if index.isValid(): + row = index.row() + col = 4 + index1 = self.createIndex(row, col, self.breakpoints[row]) + self.emit(\ + SIGNAL("dataAboutToBeChanged(const QModelIndex &, const QModelIndex &)"), + index1, index1) + self.breakpoints[row][col] = enabled + self.emit(SIGNAL("dataChanged(const QModelIndex &, const QModelIndex &)"), + index1, index1) + + def deleteBreakPointByIndex(self, index): + """ + Public method to set the values of a breakpoint given by index. + + @param index index of the breakpoint (QModelIndex) + """ + if index.isValid(): + row = index.row() + self.beginRemoveRows(QModelIndex(), row, row) + del self.breakpoints[row] + self.endRemoveRows() + + def deleteBreakPoints(self, idxList): + """ + Public method to delete a list of breakpoints given by their indexes. + + @param idxList list of breakpoint indexes (list of QModelIndex) + """ + rows = [] + for index in idxList: + if index.isValid(): + rows.append(index.row()) + rows.sort(reverse = True) + for row in rows: + self.beginRemoveRows(QModelIndex(), row, row) + del self.breakpoints[row] + self.endRemoveRows() + + def deleteAll(self): + """ + Public method to delete all breakpoints. + """ + if self.breakpoints: + self.beginRemoveRows(QModelIndex(), 0, len(self.breakpoints) - 1) + self.breakpoints = [] + self.endRemoveRows() + + def getBreakPointByIndex(self, index): + """ + Public method to get the values of a breakpoint given by index. + + @param index index of the breakpoint (QModelIndex) + @return breakpoint (list of seven values (filename, line number, + condition, temporary flag, enabled flag, ignore count)) + """ + if index.isValid(): + return self.breakpoints[index.row()][:] # return a copy + else: + return [] + + def getBreakPointIndex(self, fn, lineno): + """ + Public method to get the index of a breakpoint given by filename and line number. + + @param fn filename of the breakpoint (string) + @param line line number of the breakpoint (integer) + @return index (QModelIndex) + """ + for row in range(len(self.breakpoints)): + bp = self.breakpoints[row] + if bp[0] == fn and bp[1] == lineno: + return self.createIndex(row, 0, self.breakpoints[row]) + + return QModelIndex() + + def isBreakPointTemporaryByIndex(self, index): + """ + Public method to test, if a breakpoint given by it's index is temporary. + + @param index index of the breakpoint to test (QModelIndex) + @return flag indicating a temporary breakpoint (boolean) + """ + if index.isValid(): + return self.breakpoints[index.row()][3] + else: + return False