diff -r 4e8b98454baa -r 800c432b34c8 eric7/Debugger/WatchPointModel.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/eric7/Debugger/WatchPointModel.py Sat May 15 18:45:04 2021 +0200
@@ -0,0 +1,327 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2006 - 2021 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing the Watch expression model.
+"""
+
+import copy
+
+from PyQt5.QtCore import pyqtSignal, Qt, QAbstractItemModel, QModelIndex
+
+
+class WatchPointModel(QAbstractItemModel):
+ """
+ Class implementing a custom model for watch expressions.
+
+ @signal dataAboutToBeChanged(QModelIndex, QModelIndex) emitted to indicate
+ a change of the data
+ """
+ dataAboutToBeChanged = pyqtSignal(QModelIndex, QModelIndex)
+
+ def __init__(self, parent=None):
+ """
+ Constructor
+
+ @param parent reference to the parent widget (QObject)
+ """
+ super().__init__(parent)
+
+ self.watchpoints = []
+ self.header = [
+ self.tr("Condition"),
+ self.tr("Special"),
+ self.tr('Temporary'),
+ self.tr('Enabled'),
+ self.tr('Ignore Count'),
+ ]
+ self.alignments = [Qt.Alignment(Qt.AlignmentFlag.AlignLeft),
+ Qt.Alignment(Qt.AlignmentFlag.AlignLeft),
+ Qt.Alignment(Qt.AlignmentFlag.AlignHCenter),
+ Qt.Alignment(Qt.AlignmentFlag.AlignHCenter),
+ Qt.Alignment(Qt.AlignmentFlag.AlignRight),
+ ]
+
+ def columnCount(self, parent=None):
+ """
+ Public method to get the current column count.
+
+ @param parent index of the parent item (QModelIndex) (Unused)
+ @return column count (integer)
+ """
+ return len(self.header)
+
+ def rowCount(self, parent=None):
+ """
+ Public method to get the current row count.
+
+ @param parent index of the parent item (QModelIndex)
+ @return row count (integer)
+ """
+ # we do not have a tree, parent should always be invalid
+ if parent is None or not parent.isValid():
+ return len(self.watchpoints)
+ 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
+ """
+ if not index.isValid():
+ return None
+
+ if (
+ role == Qt.ItemDataRole.DisplayRole and
+ index.column() in [0, 1, 4]
+ ):
+ return self.watchpoints[index.row()][index.column()]
+
+ if (
+ role == Qt.ItemDataRole.CheckStateRole and
+ index.column() in [2, 3]
+ ):
+ return self.watchpoints[index.row()][index.column()]
+
+ if (
+ role == Qt.ItemDataRole.ToolTipRole and
+ index.column() in [0, 1]
+ ):
+ return self.watchpoints[index.row()][index.column()]
+
+ if (
+ role == Qt.ItemDataRole.TextAlignmentRole and
+ index.column() < len(self.alignments)
+ ):
+ return self.alignments[index.column()]
+
+ return None
+
+ 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.ItemFlag.ItemIsEnabled
+
+ return Qt.ItemFlag.ItemIsEnabled | Qt.ItemFlag.ItemIsSelectable
+
+ def headerData(self, section, orientation,
+ role=Qt.ItemDataRole.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
+ """
+ if (
+ orientation == Qt.Orientation.Horizontal and
+ role == Qt.ItemDataRole.DisplayRole
+ ):
+ if section >= len(self.header):
+ return ""
+ else:
+ return self.header[section]
+
+ return None
+
+ def index(self, row, column, parent=None):
+ """
+ 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 and parent.isValid()) or
+ row < 0 or
+ row >= len(self.watchpoints) or
+ column < 0 or
+ column >= len(self.header)
+ ):
+ return QModelIndex()
+
+ return self.createIndex(row, column, self.watchpoints[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=None):
+ """
+ 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 parent is None or not parent.isValid():
+ return len(self.watchpoints) > 0
+ else:
+ return False
+
+ ###########################################################################
+
+ def addWatchPoint(self, cond, special, properties):
+ """
+ Public method to add a new watch expression to the list.
+
+ @param cond expression of the watch expression
+ @type str
+ @param special special condition of the watch expression
+ @type str
+ @param properties properties of the watch expression
+ (tuple of temporary flag, enabled flag, ignore count)
+ @type tuple of (bool, bool, int)
+ """
+ wp = [cond, special] + list(properties)
+ cnt = len(self.watchpoints)
+ self.beginInsertRows(QModelIndex(), cnt, cnt)
+ self.watchpoints.append(wp)
+ self.endInsertRows()
+
+ def addWatchPoints(self, watchpoints):
+ """
+ Public method to add multiple watch expressions to the list.
+
+ @param watchpoints list of watch expressions with expression, special
+ condition, temporary flag, enabled flag and ignore count each
+ @type list of (str, str, bool, bool, int)
+ """
+ cnt = len(self.watchpoints)
+ self.beginInsertRows(QModelIndex(), cnt, cnt + len(watchpoints) - 1)
+ self.watchpoints += watchpoints
+ self.endInsertRows()
+
+ def setWatchPointByIndex(self, index, cond, special, properties):
+ """
+ Public method to set the values of a watch expression given by index.
+
+ @param index index of the watch expression (QModelIndex)
+ @param cond expression of the watch expression (string)
+ @param special special condition of the watch expression (string)
+ @param properties properties of the watch expression
+ (tuple of temporary flag (bool), enabled flag (bool),
+ ignore count (integer))
+ """
+ if index.isValid():
+ row = index.row()
+ index1 = self.createIndex(row, 0, self.watchpoints[row])
+ index2 = self.createIndex(
+ row, len(self.watchpoints[row]), self.watchpoints[row])
+ self.dataAboutToBeChanged.emit(index1, index2)
+ self.watchpoints[row] = [cond, special] + list(properties)
+ self.dataChanged.emit(index1, index2)
+
+ def setWatchPointEnabledByIndex(self, index, enabled):
+ """
+ Public method to set the enabled state of a watch expression given by
+ index.
+
+ @param index index of the watch expression (QModelIndex)
+ @param enabled flag giving the enabled state (boolean)
+ """
+ if index.isValid():
+ row = index.row()
+ col = 3
+ index1 = self.createIndex(row, col, self.watchpoints[row])
+ self.dataAboutToBeChanged.emit(index1, index1)
+ self.watchpoints[row][col] = enabled
+ self.dataChanged.emit(index1, index1)
+
+ def deleteWatchPointByIndex(self, index):
+ """
+ Public method to set the values of a watch expression given by index.
+
+ @param index index of the watch expression (QModelIndex)
+ """
+ if index.isValid():
+ row = index.row()
+ self.beginRemoveRows(QModelIndex(), row, row)
+ del self.watchpoints[row]
+ self.endRemoveRows()
+
+ def deleteWatchPoints(self, idxList):
+ """
+ Public method to delete a list of watch expressions given by their
+ indexes.
+
+ @param idxList list of watch expression indexes (list of QModelIndex)
+ """
+ rows = []
+ for index in idxList:
+ if index.isValid():
+ rows.append(index.row())
+ rows.sort(reverse=True)
+ for row in rows:
+ if row < len(self.breakpoints):
+ self.beginRemoveRows(QModelIndex(), row, row)
+ del self.watchpoints[row]
+ self.endRemoveRows()
+
+ def deleteAll(self):
+ """
+ Public method to delete all watch expressions.
+ """
+ if self.watchpoints:
+ self.beginRemoveRows(QModelIndex(), 0, len(self.watchpoints) - 1)
+ self.watchpoints = []
+ self.endRemoveRows()
+
+ def getWatchPointByIndex(self, index):
+ """
+ Public method to get the values of a watch expression given by index.
+
+ @param index index of the watch expression (QModelIndex)
+ @return watch expression (list of six values (expression,
+ special condition, temporary flag, enabled flag, ignore count))
+ @rtype tuple of (str, str, bool, bool, int)
+ """
+ if index.isValid():
+ return self.watchpoints[index.row()][:] # return a copy
+ else:
+ return []
+
+ def getAllWatchpoints(self):
+ """
+ Public method to get the list of watchpoints.
+
+ @return list of watchpoints
+ @rtype list of list of [str, str, bool, bool, int]
+ """
+ return copy.deepcopy(self.watchpoints)
+
+ def getWatchPointIndex(self, cond, special=""):
+ """
+ Public method to get the index of a watch expression given by
+ expression.
+
+ @param cond expression of the watch expression (string)
+ @param special special condition of the watch expression (string)
+ @return index (QModelIndex)
+ """
+ for row in range(len(self.watchpoints)):
+ wp = self.watchpoints[row]
+ if wp[0] == cond:
+ if special and wp[1] != special:
+ continue
+ return self.createIndex(row, 0, self.watchpoints[row])
+
+ return QModelIndex()
