git.maemo.org Git - tablet-suite/blob - src/backup/pcsbackuplistui.py

   1 # Authors: Amaury Medeiros and Paulo Ouriques
   2 # Software License: GPL
   3
   4 from PyQt4.QtCore import *
   5 from PyQt4.QtGui import *
   6
   7 class PCSBackupListUi(QTableView):
   8
   9     ''' Class that creates a table, where the backups will be shown '''
  10
  11     def __init__(self, backupManager):
  12         super(PCSBackupListUi, self).__init__()
  13
  14         self.setSelectionBehavior(QAbstractItemView.SelectRows)
  15         self.setSelectionMode(QAbstractItemView.ExtendedSelection)
  16         self.setAlternatingRowColors(True)
  17         self.setShowGrid(False)
  18         self.setEditTriggers(QAbstractItemView.NoEditTriggers)
  19         self.model = QStandardItemModel()
  20         self.setModel(self.model)
  21
  22         hHeader = QHeaderView(Qt.Horizontal)
  23         hHeader.setObjectName("listHeader")
  24         hHeader.setAttribute(Qt.WA_NoSystemBackground)
  25         hHeader.setStretchLastSection(True)
  26         hHeader.setResizeMode(QHeaderView.ResizeToContents)
  27         hHeader.setMinimumSectionSize(100)
  28
  29         hHeader.setClickable(False)
  30
  31         self.setHorizontalHeader(hHeader)
  32
  33         vHeader = QHeaderView(Qt.Vertical)
  34         vHeader.setVisible(False)
  35         self.setVerticalHeader(vHeader)
  36         self._backupManager = backupManager
  37
  38     def updateBackupList(self):
  39         self.model.clear()
  40         self.model.setHorizontalHeaderItem(0, QStandardItem("NAME"))
  41         self.model.setHorizontalHeaderItem(1, QStandardItem("SIZE"))
  42         self.model.setHorizontalHeaderItem(2, QStandardItem("DATE"))
  43
  44         backupList = self._backupManager.getBackupList()
  45         for backupInfo in backupList:
  46             name = backupInfo.getName()
  47             date = str(backupInfo.getDate())
  48             size = self._formatBackupSize(backupInfo.getSize())
  49             backupData = [QStandardItem(name), QStandardItem(size), QStandardItem(date)]
  50             self.model.appendRow(backupData)
  51
  52     def removeSelectedBackups(self):
  53         selectionModel = self.selectionModel()
  54         indexList = selectionModel.selectedRows()
  55         for index in reversed(sorted(indexList)):
  56             if index.isValid():
  57                 row = index.row()
  58                 data = self.model.itemData(index)
  59                 backupName = data[0].toString()
  60                 if self._backupManager.removeBackup((str(backupName).strip())):
  61                     self.model.removeRow(row)
  62         self.updateBackupList()
  63
  64     def renameSelectedBackup (self, newName):
  65         #!!!!!!! getSelectedBackup
  66         backupName = (str(self.getSelectedBackup())).strip()
  67         if backupName != None:
  68             if self._backupManager.renameBackup(backupName, newName):
  69                 self.updateBackupList()
  70                 return True
  71
  72         return False
  73
  74     def getSelectedBackup(self):
  75         list = self.getSelectedBackupList()
  76         if list and len(list) > 0:
  77             return list[0]
  78
  79         return None
  80
  81     def getSelectedBackupList(self):
  82         selectionModel = self.selectionModel()
  83         indexList = selectionModel.selectedRows()
  84         backupList = []
  85         for index in indexList:
  86             if index.isValid():
  87                 row = index.row()
  88                 data = self.model.itemData(index)
  89                 backupList.append(data[0].toString())
  90         return backupList
  91
  92     def getBackupManager(self):
  93         return self._backupManager
  94
  95     def _formatBackupSize(self, size):
  96         """ Return a string with a more suited size and byte multiple for the
  97         received size.
  98
  99         Attributes:
 100             String/Float/Int size - size in bytes or string representing it.
 101
 102         """
 103         size = float(size)
 104         multiples = ["B", "KB", "MB", "GB"]
 105         divisions = 0
 106         while size > 1000 and divisions <= 3:
 107             size = size / 1024.
 108             divisions += 1
 109
 110         return "%.1f %s" % (size, multiples[divisions])