eric6/Plugins/VcsPlugins/vcsPySvn/SvnStatusDialog.py

# -*- coding: utf-8 -*-

# Copyright (c) 2003 - 2019 Detlev Offenbach <detlev@die-offenbachs.de>
#

"""
Module implementing a dialog to show the output of the svn status command
process.
"""


import os

import pysvn

from PyQt5.QtCore import QMutexLocker, Qt, pyqtSlot
from PyQt5.QtGui import QCursor
from PyQt5.QtWidgets import QWidget, QHeaderView, QApplication, QMenu, \
    QDialogButtonBox, QTreeWidgetItem

from E5Gui.E5Application import e5App
from E5Gui import E5MessageBox

from .SvnConst import svnStatusMap
from .SvnDialogMixin import SvnDialogMixin

from .Ui_SvnStatusDialog import Ui_SvnStatusDialog

import Preferences
import Utilities


class SvnStatusDialog(QWidget, SvnDialogMixin, Ui_SvnStatusDialog):
    """
    Class implementing a dialog to show the output of the svn status command
    process.
    """
    def __init__(self, vcs, parent=None):
        """
        Constructor
        
        @param vcs reference to the vcs object
        @param parent parent widget (QWidget)
        """
        super(SvnStatusDialog, self).__init__(parent)
        self.setupUi(self)
        SvnDialogMixin.__init__(self)
        
        self.__toBeCommittedColumn = 0
        self.__changelistColumn = 1
        self.__statusColumn = 2
        self.__propStatusColumn = 3
        self.__lockedColumn = 4
        self.__historyColumn = 5
        self.__switchedColumn = 6
        self.__lockinfoColumn = 7
        self.__upToDateColumn = 8
        self.__pathColumn = 12
        self.__lastColumn = self.statusList.columnCount()
        
        self.refreshButton = \
            self.buttonBox.addButton(self.tr("Refresh"),
                                     QDialogButtonBox.ActionRole)
        self.refreshButton.setToolTip(
            self.tr("Press to refresh the status display"))
        self.refreshButton.setEnabled(False)
        self.buttonBox.button(QDialogButtonBox.Close).setEnabled(False)
        self.buttonBox.button(QDialogButtonBox.Cancel).setDefault(True)
        
        self.diff = None
        self.vcs = vcs
        self.vcs.committed.connect(self.__committed)
        
        self.statusList.headerItem().setText(self.__lastColumn, "")
        self.statusList.header().setSortIndicator(self.__pathColumn,
                                                  Qt.AscendingOrder)
        if pysvn.svn_version < (1, 5, 0) or pysvn.version < (1, 6, 0):
            self.statusList.header().hideSection(self.__changelistColumn)
        
        self.menuactions = []
        self.menu = QMenu()
        self.menuactions.append(self.menu.addAction(
            self.tr("Commit changes to repository..."), self.__commit))
        self.menuactions.append(self.menu.addAction(
            self.tr("Select all for commit"), self.__commitSelectAll))
        self.menuactions.append(self.menu.addAction(
            self.tr("Deselect all from commit"), self.__commitDeselectAll))
        self.menu.addSeparator()
        self.menuactions.append(self.menu.addAction(
            self.tr("Add to repository"), self.__add))
        self.menuactions.append(self.menu.addAction(
            self.tr("Show differences"), self.__diff))
        self.menuactions.append(self.menu.addAction(
            self.tr("Show differences side-by-side"), self.__sbsDiff))
        self.menuactions.append(self.menu.addAction(
            self.tr("Revert changes"), self.__revert))
        self.menuactions.append(self.menu.addAction(
            self.tr("Restore missing"), self.__restoreMissing))
        if pysvn.svn_version >= (1, 5, 0) and pysvn.version >= (1, 6, 0):
            self.menu.addSeparator()
            self.menuactions.append(self.menu.addAction(
                self.tr("Add to Changelist"), self.__addToChangelist))
            self.menuactions.append(self.menu.addAction(
                self.tr("Remove from Changelist"),
                self.__removeFromChangelist))
        if self.vcs.version >= (1, 2, 0):
            self.menu.addSeparator()
            self.menuactions.append(
                self.menu.addAction(self.tr("Lock"), self.__lock))
            self.menuactions.append(
                self.menu.addAction(self.tr("Unlock"), self.__unlock))
            self.menuactions.append(self.menu.addAction(
                self.tr("Break lock"),
                self.__breakLock))
            self.menuactions.append(self.menu.addAction(
                self.tr("Steal lock"),
                self.__stealLock))
        self.menu.addSeparator()
        self.menuactions.append(self.menu.addAction(
            self.tr("Adjust column sizes"),
            self.__resizeColumns))
        for act in self.menuactions:
            act.setEnabled(False)
        
        self.statusList.setContextMenuPolicy(Qt.CustomContextMenu)
        self.statusList.customContextMenuRequested.connect(
            self.__showContextMenu)
        
        self.modifiedIndicators = [
            self.tr(svnStatusMap[pysvn.wc_status_kind.added]),
            self.tr(svnStatusMap[pysvn.wc_status_kind.deleted]),
            self.tr(svnStatusMap[pysvn.wc_status_kind.modified])
        ]
        
        self.missingIndicators = [
            self.tr(svnStatusMap[pysvn.wc_status_kind.missing]),
        ]
        
        self.unversionedIndicators = [
            self.tr(svnStatusMap[pysvn.wc_status_kind.unversioned]),
        ]
        
        self.lockedIndicators = [
            self.tr('locked'),
        ]
        
        self.stealBreakLockIndicators = [
            self.tr('other lock'),
            self.tr('stolen lock'),
            self.tr('broken lock'),
        ]
        
        self.unlockedIndicators = [
            self.tr('not locked'),
        ]
        
        self.lockinfo = {
            ' ': self.tr('not locked'),
            'L': self.tr('locked'),
            'O': self.tr('other lock'),
            'S': self.tr('stolen lock'),
            'B': self.tr('broken lock'),
        }
        self.yesno = [
            self.tr('no'),
            self.tr('yes'),
        ]
        
        self.client = self.vcs.getClient()
        self.client.callback_cancel = \
            self._clientCancelCallback
        self.client.callback_get_login = \
            self._clientLoginCallback
        self.client.callback_ssl_server_trust_prompt = \
            self._clientSslServerTrustPromptCallback
        
        self.show()
        QApplication.processEvents()
        
    def __resort(self):
        """
        Private method to resort the tree.
        """
        self.statusList.sortItems(
            self.statusList.sortColumn(),
            self.statusList.header().sortIndicatorOrder())
        
    def __resizeColumns(self):
        """
        Private method to resize the list columns.
        """
        self.statusList.header().resizeSections(QHeaderView.ResizeToContents)
        self.statusList.header().setStretchLastSection(True)
        
    def __generateItem(self, changelist, status, propStatus, locked, history,
                       switched, lockinfo, uptodate, revision, change, author,
                       path):
        """
        Private method to generate a status item in the status list.
        
        @param changelist name of the changelist (string)
        @param status text status (pysvn.wc_status_kind)
        @param propStatus property status (pysvn.wc_status_kind)
        @param locked locked flag (boolean)
        @param history history flag (boolean)
        @param switched switched flag (boolean)
        @param lockinfo lock indicator (string)
        @param uptodate up to date flag (boolean)
        @param revision revision (integer)
        @param change revision of last change (integer)
        @param author author of the last change (string)
        @param path path of the file or directory (string)
        """
        statusText = self.tr(svnStatusMap[status])
        itm = QTreeWidgetItem(self.statusList)
        itm.setData(0, Qt.DisplayRole, "")
        itm.setData(1, Qt.DisplayRole, changelist)
        itm.setData(2, Qt.DisplayRole, statusText)
        itm.setData(3, Qt.DisplayRole, self.tr(svnStatusMap[propStatus]))
        itm.setData(4, Qt.DisplayRole, self.yesno[locked])
        itm.setData(5, Qt.DisplayRole, self.yesno[history])
        itm.setData(6, Qt.DisplayRole, self.yesno[switched])
        itm.setData(7, Qt.DisplayRole, self.lockinfo[lockinfo])
        itm.setData(8, Qt.DisplayRole, self.yesno[uptodate])
        itm.setData(9, Qt.DisplayRole, revision)
        itm.setData(10, Qt.DisplayRole, change)
        itm.setData(11, Qt.DisplayRole, author)
        itm.setData(12, Qt.DisplayRole, path)
        
        itm.setTextAlignment(1, Qt.AlignLeft)
        itm.setTextAlignment(2, Qt.AlignHCenter)
        itm.setTextAlignment(3, Qt.AlignHCenter)
        itm.setTextAlignment(4, Qt.AlignHCenter)
        itm.setTextAlignment(5, Qt.AlignHCenter)
        itm.setTextAlignment(6, Qt.AlignHCenter)
        itm.setTextAlignment(7, Qt.AlignHCenter)
        itm.setTextAlignment(8, Qt.AlignHCenter)
        itm.setTextAlignment(9, Qt.AlignRight)
        itm.setTextAlignment(10, Qt.AlignRight)
        itm.setTextAlignment(11, Qt.AlignLeft)
        itm.setTextAlignment(12, Qt.AlignLeft)
        
        if status in [pysvn.wc_status_kind.added,
                      pysvn.wc_status_kind.deleted,
                      pysvn.wc_status_kind.modified] or \
           propStatus in [pysvn.wc_status_kind.added,
                          pysvn.wc_status_kind.deleted,
                          pysvn.wc_status_kind.modified]:
            itm.setFlags(itm.flags() | Qt.ItemIsUserCheckable)
            itm.setCheckState(self.__toBeCommittedColumn, Qt.Checked)
        else:
            itm.setFlags(itm.flags() & ~Qt.ItemIsUserCheckable)
        
        if statusText not in self.__statusFilters:
            self.__statusFilters.append(statusText)
        
    def start(self, fn):
        """
        Public slot to start the svn status command.
        
        @param fn filename(s)/directoryname(s) to show the status of
            (string or list of strings)
        """
        self.errorGroup.hide()
        
        for act in self.menuactions:
            act.setEnabled(False)
        
        self.addButton.setEnabled(False)
        self.commitButton.setEnabled(False)
        self.diffButton.setEnabled(False)
        self.sbsDiffButton.setEnabled(False)
        self.revertButton.setEnabled(False)
        self.restoreButton.setEnabled(False)

        self.statusFilterCombo.clear()
        self.__statusFilters = []
        self.statusList.clear()
        self.shouldCancel = False
        
        self.buttonBox.button(QDialogButtonBox.Close).setEnabled(False)
        self.buttonBox.button(QDialogButtonBox.Cancel).setEnabled(True)
        self.buttonBox.button(QDialogButtonBox.Cancel).setDefault(True)
        self.refreshButton.setEnabled(False)
        
        QApplication.setOverrideCursor(QCursor(Qt.WaitCursor))
        QApplication.processEvents()
        
        self.args = fn
        
        self.setWindowTitle(self.tr('Subversion Status'))
        self.activateWindow()
        self.raise_()
        
        if isinstance(fn, list):
            self.dname, fnames = self.vcs.splitPathList(fn)
        else:
            self.dname, fname = self.vcs.splitPath(fn)
            fnames = [fname]
        
        opts = self.vcs.options['global'] + self.vcs.options['status']
        verbose = "--verbose" in opts
        recurse = "--non-recursive" not in opts
        update = "--show-updates" in opts
        
        hideChangelistColumn = True
        hidePropertyStatusColumn = True
        hideLockColumns = True
        hideUpToDateColumn = True
        hideHistoryColumn = True
        hideSwitchedColumn = True
        
        locker = QMutexLocker(self.vcs.vcsExecutionMutex)
        cwd = os.getcwd()
        os.chdir(self.dname)
        try:
            for name in fnames:
                # step 1: determine changelists and their files
                changelistsDict = {}
                if hasattr(self.client, 'get_changelist'):
                    if recurse:
                        depth = pysvn.depth.infinity
                    else:
                        depth = pysvn.depth.immediate
                    changelists = self.client.get_changelist(name, depth=depth)
                    for fpath, changelist in changelists:
                        fpath = Utilities.normcasepath(fpath)
                        changelistsDict[fpath] = changelist
                hideChangelistColumn = hideChangelistColumn and \
                    len(changelistsDict) == 0
                
                # step 2: determine status of files
                allFiles = self.client.status(name, recurse=recurse,
                                              get_all=verbose, ignore=True,
                                              update=update)
                counter = 0
                for file in allFiles:
                    uptodate = True
                    if file.repos_text_status != pysvn.wc_status_kind.none:
                        uptodate = uptodate and \
                            file.repos_text_status != \
                            pysvn.wc_status_kind.modified
                    if file.repos_prop_status != pysvn.wc_status_kind.none:
                        uptodate = uptodate and \
                            file.repos_prop_status != \
                            pysvn.wc_status_kind.modified
                    
                    lockState = " "
                    if file.entry is not None and \
                       hasattr(file.entry, 'lock_token') and \
                       file.entry.lock_token is not None:
                        lockState = "L"
                    if hasattr(file, 'repos_lock') and update:
                        if lockState == "L" and file.repos_lock is None:
                            lockState = "B"
                        elif lockState == " " and file.repos_lock is not None:
                            lockState = "O"
                        elif lockState == "L" and \
                            file.repos_lock is not None and \
                            file.entry.lock_token != \
                                file.repos_lock["token"]:
                            lockState = "S"
                    
                    fpath = Utilities.normcasepath(
                        os.path.join(self.dname, file.path))
                    if fpath in changelistsDict:
                        changelist = changelistsDict[fpath]
                    else:
                        changelist = ""
                    
                    hidePropertyStatusColumn = hidePropertyStatusColumn and \
                        file.prop_status in [
                            pysvn.wc_status_kind.none,
                            pysvn.wc_status_kind.normal
                        ]
                    hideLockColumns = hideLockColumns and \
                        not file.is_locked and lockState == " "
                    hideUpToDateColumn = hideUpToDateColumn and uptodate
                    hideHistoryColumn = hideHistoryColumn and \
                        not file.is_copied
                    hideSwitchedColumn = hideSwitchedColumn and \
                        not file.is_switched
                    
                    self.__generateItem(
                        changelist,
                        file.text_status,
                        file.prop_status,
                        file.is_locked,
                        file.is_copied,
                        file.is_switched,
                        lockState,
                        uptodate,
                        file.entry and file.entry.revision.number or "",
                        file.entry and file.entry.commit_revision.number or "",
                        file.entry and file.entry.commit_author or "",
                        file.path
                    )
                    counter += 1
                    if counter == 30:
                        # check for cancel every 30 items
                        counter = 0
                        if self._clientCancelCallback():
                            break
                if self._clientCancelCallback():
                    break
        except pysvn.ClientError as e:
            self.__showError(e.args[0] + '\n')
        
        self.statusList.setColumnHidden(self.__propStatusColumn,
                                        hidePropertyStatusColumn)
        self.statusList.setColumnHidden(self.__lockedColumn,
                                        hideLockColumns)
        self.statusList.setColumnHidden(self.__lockinfoColumn,
                                        hideLockColumns)
        self.statusList.setColumnHidden(self.__upToDateColumn,
                                        hideUpToDateColumn)
        self.statusList.setColumnHidden(self.__historyColumn,
                                        hideHistoryColumn)
        self.statusList.setColumnHidden(self.__switchedColumn,
                                        hideSwitchedColumn)
        self.statusList.setColumnHidden(self.__changelistColumn,
                                        hideChangelistColumn)
        
        locker.unlock()
        self.__finish()
        os.chdir(cwd)
        
    def __finish(self):
        """
        Private slot called when the process finished or the user pressed
        the button.
        """
        QApplication.restoreOverrideCursor()
        
        self.buttonBox.button(QDialogButtonBox.Close).setEnabled(True)
        self.buttonBox.button(QDialogButtonBox.Cancel).setEnabled(False)
        self.buttonBox.button(QDialogButtonBox.Close).setDefault(True)
        
        self.refreshButton.setEnabled(True)
        self.__updateButtons()
        self.__updateCommitButton()
        
        self.__statusFilters.sort()
        self.__statusFilters.insert(0, "<{0}>".format(self.tr("all")))
        self.statusFilterCombo.addItems(self.__statusFilters)
        
        for act in self.menuactions:
            act.setEnabled(True)
        
        self.__resizeColumns()
        self.__resort()
        
        self._cancel()
        
    def on_buttonBox_clicked(self, button):
        """
        Private slot called by a button of the button box clicked.
        
        @param button button that was clicked (QAbstractButton)
        """
        if button == self.buttonBox.button(QDialogButtonBox.Close):
            self.close()
        elif button == self.buttonBox.button(QDialogButtonBox.Cancel):
            self.__finish()
        elif button == self.refreshButton:
            self.on_refreshButton_clicked()
        
    @pyqtSlot()
    def on_refreshButton_clicked(self):
        """
        Private slot to refresh the status display.
        """
        self.start(self.args)
        
    def __showError(self, msg):
        """
        Private slot to show an error message.
        
        @param msg error message to show (string)
        """
        self.errorGroup.show()
        self.errors.insertPlainText(msg)
        self.errors.ensureCursorVisible()
    
    def __updateButtons(self):
        """
        Private method to update the VCS buttons status.
        """
        modified = len(self.__getModifiedItems())
        unversioned = len(self.__getUnversionedItems())
        missing = len(self.__getMissingItems())

        self.addButton.setEnabled(unversioned)
        self.diffButton.setEnabled(modified)
        self.sbsDiffButton.setEnabled(modified == 1)
        self.revertButton.setEnabled(modified)
        self.restoreButton.setEnabled(missing)
    
    def __updateCommitButton(self):
        """
        Private method to update the Commit button status.
        """
        commitable = len(self.__getCommitableItems())
        self.commitButton.setEnabled(commitable)
    
    @pyqtSlot(str)
    def on_statusFilterCombo_activated(self, txt):
        """
        Private slot to react to the selection of a status filter.
        
        @param txt selected status filter (string)
        """
        if txt == "<{0}>".format(self.tr("all")):
            for topIndex in range(self.statusList.topLevelItemCount()):
                topItem = self.statusList.topLevelItem(topIndex)
                topItem.setHidden(False)
        else:
            for topIndex in range(self.statusList.topLevelItemCount()):
                topItem = self.statusList.topLevelItem(topIndex)
                topItem.setHidden(topItem.text(self.__statusColumn) != txt)
    
    @pyqtSlot(QTreeWidgetItem, int)
    def on_statusList_itemChanged(self, item, column):
        """
        Private slot to act upon item changes.
        
        @param item reference to the changed item (QTreeWidgetItem)
        @param column index of column that changed (integer)
        """
        if column == self.__toBeCommittedColumn:
            self.__updateCommitButton()
    
    @pyqtSlot()
    def on_statusList_itemSelectionChanged(self):
        """
        Private slot to act upon changes of selected items.
        """
        self.__updateButtons()
    
    @pyqtSlot()
    def on_commitButton_clicked(self):
        """
        Private slot to handle the press of the Commit button.
        """
        self.__commit()
    
    @pyqtSlot()
    def on_addButton_clicked(self):
        """
        Private slot to handle the press of the Add button.
        """
        self.__add()
    
    @pyqtSlot()
    def on_diffButton_clicked(self):
        """
        Private slot to handle the press of the Differences button.
        """
        self.__diff()
    
    @pyqtSlot()
    def on_sbsDiffButton_clicked(self):
        """
        Private slot to handle the press of the Side-by-Side Diff button.
        """
        self.__sbsDiff()
    
    @pyqtSlot()
    def on_revertButton_clicked(self):
        """
        Private slot to handle the press of the Revert button.
        """
        self.__revert()
    
    @pyqtSlot()
    def on_restoreButton_clicked(self):
        """
        Private slot to handle the press of the Restore button.
        """
        self.__restoreMissing()
    
    ###########################################################################
    ## Context menu handling methods
    ###########################################################################
    
    def __showContextMenu(self, coord):
        """
        Private slot to show the context menu of the status list.
        
        @param coord the position of the mouse pointer (QPoint)
        """
        self.menu.popup(self.statusList.mapToGlobal(coord))
        
    def __commit(self):
        """
        Private slot to handle the Commit context menu entry.
        """
        names = [os.path.join(self.dname, itm.text(self.__pathColumn))
                 for itm in self.__getCommitableItems()]
        if not names:
            E5MessageBox.information(
                self,
                self.tr("Commit"),
                self.tr("""There are no entries selected to be"""
                        """ committed."""))
            return
        
        if Preferences.getVCS("AutoSaveFiles"):
            vm = e5App().getObject("ViewManager")
            for name in names:
                vm.saveEditor(name)
        self.vcs.vcsCommit(names, '')
       
    def __committed(self):
        """
        Private slot called after the commit has finished.
        """
        if self.isVisible():
            self.on_refreshButton_clicked()
            self.vcs.checkVCSStatus()
        
    def __commitSelectAll(self):
        """
        Private slot to select all entries for commit.
        """
        self.__commitSelect(True)
    
    def __commitDeselectAll(self):
        """
        Private slot to deselect all entries from commit.
        """
        self.__commitSelect(False)
    
    def __add(self):
        """
        Private slot to handle the Add context menu entry.
        """
        names = [os.path.join(self.dname, itm.text(self.__pathColumn))
                 for itm in self.__getUnversionedItems()]
        if not names:
            E5MessageBox.information(
                self,
                self.tr("Add"),
                self.tr("""There are no unversioned entries"""
                        """ available/selected."""))
            return
        
        self.vcs.vcsAdd(names)
        self.on_refreshButton_clicked()
        
        project = e5App().getObject("Project")
        for name in names:
            project.getModel().updateVCSStatus(name)
        self.vcs.checkVCSStatus()

    def __revert(self):
        """
        Private slot to handle the Revert context menu entry.
        """
        names = [os.path.join(self.dname, itm.text(self.__pathColumn))
                 for itm in self.__getModifiedItems()]
        if not names:
            E5MessageBox.information(
                self,
                self.tr("Revert"),
                self.tr("""There are no uncommitted changes"""
                        """ available/selected."""))
            return
        
        self.vcs.vcsRevert(names)
        self.raise_()
        self.activateWindow()
        self.on_refreshButton_clicked()
        
        project = e5App().getObject("Project")
        for name in names:
            project.getModel().updateVCSStatus(name)
        self.vcs.checkVCSStatus()
        
    def __restoreMissing(self):
        """
        Private slot to handle the Restore Missing context menu entry.
        """
        names = [os.path.join(self.dname, itm.text(self.__pathColumn))
                 for itm in self.__getMissingItems()]
        if not names:
            E5MessageBox.information(
                self,
                self.tr("Revert"),
                self.tr("""There are no missing entries"""
                        """ available/selected."""))
            return
        
        self.vcs.vcsRevert(names)
        self.on_refreshButton_clicked()
        self.vcs.checkVCSStatus()
        
    def __diff(self):
        """
        Private slot to handle the Diff context menu entry.
        """
        names = [os.path.join(self.dname, itm.text(self.__pathColumn))
                 for itm in self.__getModifiedItems()]
        if not names:
            E5MessageBox.information(
                self,
                self.tr("Differences"),
                self.tr("""There are no uncommitted changes"""
                        """ available/selected."""))
            return
        
        if self.diff is None:
            from .SvnDiffDialog import SvnDiffDialog
            self.diff = SvnDiffDialog(self.vcs)
        self.diff.show()
        QApplication.processEvents()
        self.diff.start(names, refreshable=True)
    
    def __sbsDiff(self):
        """
        Private slot to handle the Side-by-Side Diff context menu entry.
        """
        names = [os.path.join(self.dname, itm.text(self.__pathColumn))
                 for itm in self.__getModifiedItems()]
        if not names:
            E5MessageBox.information(
                self,
                self.tr("Side-by-Side Diff"),
                self.tr("""There are no uncommitted changes"""
                        """ available/selected."""))
            return
        elif len(names) > 1:
            E5MessageBox.information(
                self,
                self.tr("Side-by-Side Diff"),
                self.tr("""Only one file with uncommitted changes"""
                        """ must be selected."""))
            return
        
        self.vcs.svnSbsDiff(names[0])
    
    def __lock(self):
        """
        Private slot to handle the Lock context menu entry.
        """
        names = [os.path.join(self.dname, itm.text(self.__pathColumn))
                 for itm in self.__getLockActionItems(self.unlockedIndicators)]
        if not names:
            E5MessageBox.information(
                self,
                self.tr("Lock"),
                self.tr("""There are no unlocked files"""
                        """ available/selected."""))
            return
        
        self.vcs.svnLock(names, parent=self)
        self.on_refreshButton_clicked()
        
    def __unlock(self):
        """
        Private slot to handle the Unlock context menu entry.
        """
        names = [os.path.join(self.dname, itm.text(self.__pathColumn))
                 for itm in self.__getLockActionItems(self.lockedIndicators)]
        if not names:
            E5MessageBox.information(
                self,
                self.tr("Unlock"),
                self.tr("""There are no locked files"""
                        """ available/selected."""))
            return
        
        self.vcs.svnUnlock(names, parent=self)
        self.on_refreshButton_clicked()
        
    def __breakLock(self):
        """
        Private slot to handle the Break Lock context menu entry.
        """
        names = [os.path.join(self.dname, itm.text(self.__pathColumn))
                 for itm in self.__getLockActionItems(
                     self.stealBreakLockIndicators)]
        if not names:
            E5MessageBox.information(
                self,
                self.tr("Break Lock"),
                self.tr("""There are no locked files"""
                        """ available/selected."""))
            return
        
        self.vcs.svnUnlock(names, parent=self, breakIt=True)
        self.on_refreshButton_clicked()

    def __stealLock(self):
        """
        Private slot to handle the Break Lock context menu entry.
        """
        names = [os.path.join(self.dname, itm.text(self.__pathColumn))
                 for itm in self.__getLockActionItems(
                     self.stealBreakLockIndicators)]
        if not names:
            E5MessageBox.information(
                self,
                self.tr("Steal Lock"),
                self.tr("""There are no locked files"""
                        """ available/selected."""))
            return
        
        self.vcs.svnLock(names, parent=self, stealIt=True)
        self.on_refreshButton_clicked()

    def __addToChangelist(self):
        """
        Private slot to add entries to a changelist.
        """
        names = [os.path.join(self.dname, itm.text(self.__pathColumn))
                 for itm in self.__getNonChangelistItems()]
        if not names:
            E5MessageBox.information(
                self,
                self.tr("Remove from Changelist"),
                self.tr(
                    """There are no files available/selected not """
                    """belonging to a changelist."""
                )
            )
            return
        self.vcs.svnAddToChangelist(names)
        self.on_refreshButton_clicked()

    def __removeFromChangelist(self):
        """
        Private slot to remove entries from their changelists.
        """
        names = [os.path.join(self.dname, itm.text(self.__pathColumn))
                 for itm in self.__getChangelistItems()]
        if not names:
            E5MessageBox.information(
                self,
                self.tr("Remove from Changelist"),
                self.tr(
                    """There are no files available/selected belonging"""
                    """ to a changelist."""
                )
            )
            return
        self.vcs.svnRemoveFromChangelist(names)
        self.on_refreshButton_clicked()

    def __getCommitableItems(self):
        """
        Private method to retrieve all entries the user wants to commit.
        
        @return list of all items, the user has checked
        """
        commitableItems = []
        for index in range(self.statusList.topLevelItemCount()):
            itm = self.statusList.topLevelItem(index)
            if itm.checkState(self.__toBeCommittedColumn) == Qt.Checked:
                commitableItems.append(itm)
        return commitableItems
    
    def __getModifiedItems(self):
        """
        Private method to retrieve all entries, that have a modified status.
        
        @return list of all items with a modified status
        """
        modifiedItems = []
        for itm in self.statusList.selectedItems():
            if itm.text(self.__statusColumn) in self.modifiedIndicators or \
               itm.text(self.__propStatusColumn) in self.modifiedIndicators:
                modifiedItems.append(itm)
        return modifiedItems
        
    def __getUnversionedItems(self):
        """
        Private method to retrieve all entries, that have an
        unversioned status.
        
        @return list of all items with an unversioned status
        """
        unversionedItems = []
        for itm in self.statusList.selectedItems():
            if itm.text(self.__statusColumn) in self.unversionedIndicators:
                unversionedItems.append(itm)
        return unversionedItems
        
    def __getMissingItems(self):
        """
        Private method to retrieve all entries, that have a missing status.
        
        @return list of all items with a missing status
        """
        missingItems = []
        for itm in self.statusList.selectedItems():
            if itm.text(self.__statusColumn) in self.missingIndicators:
                missingItems.append(itm)
        return missingItems
        
    def __getLockActionItems(self, indicators):
        """
        Private method to retrieve all entries, that have a locked status.
        
        @param indicators list of indicators to check against (list of strings)
        @return list of all items with a locked status
        """
        lockitems = []
        for itm in self.statusList.selectedItems():
            if itm.text(self.__lockinfoColumn) in indicators:
                lockitems.append(itm)
        return lockitems
        
    def __getChangelistItems(self):
        """
        Private method to retrieve all entries, that are members of
        a changelist.
        
        @return list of all items belonging to a changelist
        """
        clitems = []
        for itm in self.statusList.selectedItems():
            if itm.text(self.__changelistColumn):
                clitems.append(itm)
        return clitems
        
    def __getNonChangelistItems(self):
        """
        Private method to retrieve all entries, that are not members of
        a changelist.
        
        @return list of all items not belonging to a changelist
        """
        clitems = []
        for itm in self.statusList.selectedItems():
            if not itm.text(self.__changelistColumn):
                clitems.append(itm)
        return clitems
    
    def __commitSelect(self, selected):
        """
        Private slot to select or deselect all entries.
        
        @param selected commit selection state to be set (boolean)
        """
        for index in range(self.statusList.topLevelItemCount()):
            itm = self.statusList.topLevelItem(index)
            if itm.flags() & Qt.ItemIsUserCheckable:
                if selected:
                    itm.setCheckState(self.__toBeCommittedColumn, Qt.Checked)
                else:
                    itm.setCheckState(self.__toBeCommittedColumn, Qt.Unchecked)