diff -r 000000000000 -r de9c2efb9d02 Helpviewer/History/HistoryModel.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Helpviewer/History/HistoryModel.py Mon Dec 28 16:03:33 2009 +0000
@@ -0,0 +1,170 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2009 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing the history model.
+"""
+
+from PyQt4.QtCore import *
+
+import Helpviewer.HelpWindow
+
+class HistoryModel(QAbstractTableModel):
+ """
+ Class implementing the history model.
+ """
+ DateRole = Qt.UserRole + 1
+ DateTimeRole = Qt.UserRole + 2
+ UrlRole = Qt.UserRole + 3
+ UrlStringRole = Qt.UserRole + 4
+ TitleRole = Qt.UserRole + 5
+ MaxRole = TitleRole
+
+ def __init__(self, historyManager, parent = None):
+ """
+ Constructor
+
+ @param historyManager reference to the history manager object (HistoryManager)
+ @param parent reference to the parent object (QObject)
+ """
+ QAbstractTableModel.__init__(self, parent)
+
+ self.__historyManager = historyManager
+
+ self.__headers = [
+ self.trUtf8("Title"),
+ self.trUtf8("Address"),
+ ]
+
+ self.connect(self.__historyManager, SIGNAL("historyReset()"),
+ self.historyReset)
+ self.connect(self.__historyManager, SIGNAL("entryRemoved"),
+ self.historyReset)
+ self.connect(self.__historyManager, SIGNAL("entryAdded"),
+ self.entryAdded)
+ self.connect(self.__historyManager, SIGNAL("entryUpdated(int)"),
+ self.entryUpdated)
+
+ def historyReset(self):
+ """
+ Public slot to reset the model.
+ """
+ self.reset()
+
+ def entryAdded(self):
+ """
+ Public slot to handle the addition of a history entry.
+ """
+ self.beginInsertRows(QModelIndex(), 0, 0)
+ self.endInsertRows()
+
+ def entryUpdated(self, row):
+ """
+ Public slot to handle the update of a history entry.
+
+ @param row row number of the updated entry (integer)
+ """
+ idx = self.index(row, 0)
+ self.emit(SIGNAL("dataChanged(const QModelIndex&, const QModelIndex&)"),
+ idx, idx)
+
+ def headerData(self, section, orientation, role = Qt.DisplayRole):
+ """
+ Public method to get the header data.
+
+ @param section section number (integer)
+ @param orientation header orientation (Qt.Orientation)
+ @param role data role (integer)
+ @return header data (QVariant)
+ """
+ if orientation == Qt.Horizontal and role == Qt.DisplayRole:
+ try:
+ return QVariant(self.__headers[section])
+ except IndexError:
+ pass
+ return QAbstractTableModel.headerData(self, section, orientation, role)
+
+ def data(self, index, role = Qt.DisplayRole):
+ """
+ Public method to get data from the model.
+
+ @param index index of history entry to get data for (QModelIndex)
+ @param role data role (integer)
+ @return history entry data (QVariant)
+ """
+ lst = self.__historyManager.history()
+ if index.row() < 0 or index.row() > len(lst):
+ return QVariant()
+
+ itm = lst[index.row()]
+ if role == self.DateTimeRole:
+ return QVariant(itm.dateTime)
+ elif role == self.DateRole:
+ return QVariant(itm.dateTime.date())
+ elif role == self.UrlRole:
+ return QVariant(QUrl(itm.url))
+ elif role == self.UrlStringRole:
+ return QVariant(itm.url)
+ elif role == self.TitleRole:
+ return QVariant(itm.userTitle())
+ elif role in [Qt.DisplayRole, Qt.EditRole]:
+ if index.column() == 0:
+ return QVariant(itm.userTitle())
+ elif index.column() == 1:
+ return QVariant(itm.url)
+ elif role == Qt.DecorationRole:
+ if index.column() == 0:
+ return QVariant(Helpviewer.HelpWindow.HelpWindow.icon(QUrl(itm.url)))
+
+ return QVariant()
+
+ def columnCount(self, parent = QModelIndex()):
+ """
+ Public method to get the number of columns.
+
+ @param parent index of parent (QModelIndex)
+ @return number of columns (integer)
+ """
+ if parent.isValid():
+ return 0
+ else:
+ return len(self.__headers)
+
+ def rowCount(self, parent = QModelIndex()):
+ """
+ Public method to determine the number of rows.
+
+ @param parent index of parent (QModelIndex)
+ @return number of rows (integer)
+ """
+ if parent.isValid():
+ return 0
+ else:
+ return len(self.__historyManager.history())
+
+ def removeRows(self, row, count, parent = QModelIndex()):
+ """
+ Public method to remove history entries from the model.
+
+ @param row row of the first history entry to remove (integer)
+ @param count number of history entries to remove (integer)
+ @param index of the parent entry (QModelIndex)
+ @return flag indicating successful removal (boolean)
+ """
+ if parent.isValid():
+ return False
+
+ lastRow = row + count - 1
+ self.beginRemoveRows(parent, row, lastRow)
+ lst = self.__historyManager.history()[:]
+ for index in range(lastRow, row - 1, -1):
+ del lst[index]
+ self.disconnect(self.__historyManager, SIGNAL("historyReset()"),
+ self.historyReset)
+ self.__historyManager.setHistory(lst)
+ self.connect(self.__historyManager, SIGNAL("historyReset()"),
+ self.historyReset)
+ self.endRemoveRows()
+ return True
