src/treeviewsidebarpage.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz <peter.penz@gmx.at>                  *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "treeviewsidebarpage.h"
  21
  22 #include "bookmarkselector.h"
  23 #include "dolphinmainwindow.h"
  24 #include "dolphinview.h"
  25
  26 #include "kdirlister.h"
  27 #include "kdirmodel.h"
  28
  29 #include <QHeaderView>
  30 #include <QItemSelectionModel>
  31 #include <QTreeView>
  32 #include <QVBoxLayout>
  33
  34 TreeViewSidebarPage::TreeViewSidebarPage(DolphinMainWindow* mainWindow,
  35                                          QWidget* parent) :
  36     SidebarPage(mainWindow, parent),
  37     m_dirLister(0),
  38     m_dirModel(0),
  39     m_treeView(0)
  40 {
  41     Q_ASSERT(mainWindow != 0);
  42
  43     m_dirLister = new KDirLister();
  44     m_dirLister->setDirOnlyMode(true);
  45     m_dirLister->setAutoUpdate(true);
  46     m_dirLister->setMainWindow(this);
  47     m_dirLister->setDelayedMimeTypes(true);
  48     m_dirLister->setAutoErrorHandlingEnabled(false, this);
  49
  50     m_dirModel = new KDirModel();
  51     m_dirModel->setDirLister(m_dirLister);
  52
  53     m_treeView = new QTreeView(this);
  54     m_treeView->setModel(m_dirModel);
  55     m_treeView->setSelectionMode(QAbstractItemView::SingleSelection);
  56
  57     // hide all columns except of the 'Name' column
  58     m_treeView->hideColumn(KDirModel::Size);
  59     m_treeView->hideColumn(KDirModel::ModifiedTime);
  60     m_treeView->hideColumn(KDirModel::Permissions);
  61     m_treeView->hideColumn(KDirModel::Owner);
  62     m_treeView->hideColumn(KDirModel::Group);
  63     m_treeView->header()->hide();
  64
  65     connect(m_treeView, SIGNAL(clicked(const QModelIndex&)),
  66             this, SLOT(updateViewUrl(const QModelIndex&)));
  67
  68     QVBoxLayout* layout = new QVBoxLayout(this);
  69     layout->addWidget(m_treeView);
  70 }
  71
  72 TreeViewSidebarPage::~TreeViewSidebarPage()
  73 {
  74     delete m_dirLister;
  75     m_dirLister = 0;
  76 }
  77
  78 void TreeViewSidebarPage::activeViewChanged()
  79 {
  80     connectToActiveView();
  81 }
  82
  83 void TreeViewSidebarPage::showEvent(QShowEvent* event)
  84 {
  85     SidebarPage::showEvent(event);
  86     connectToActiveView();
  87 }
  88
  89 void TreeViewSidebarPage::updateSelection(const KUrl& url)
  90 {
  91     // adjust the root of the tree to the base bookmark
  92     KUrl baseUrl = BookmarkSelector::baseBookmark(url).url();
  93     if (m_dirLister->url() != baseUrl) {
  94         m_dirLister->stop();
  95         m_dirLister->openUrl(baseUrl);
  96     }
  97
  98     // select the folder which contains the given url
  99
 100     // TODO: check how Konqi does it before reinventing the wheel. The directory
 101     // must already be loaded _before_ the index can be retrieved by
 102     // KDirModel::indexForItem().
 103     QItemSelectionModel* selModel = m_treeView->selectionModel();
 104     selModel->clearSelection();
 105
 106     KFileItem item(S_IFDIR, KFileItem::Unknown, url);
 107     const QModelIndex index = m_dirModel->indexForItem(item);
 108     if (index.isValid()) {
 109         m_treeView->scrollTo(index);
 110         m_treeView->setExpanded(index, true);
 111
 112         selModel->setCurrentIndex(index, QItemSelectionModel::Select);
 113     }
 114 }
 115
 116 void TreeViewSidebarPage::updateViewUrl(const QModelIndex& index)
 117 {
 118     KFileItem* item = m_dirModel->itemForIndex(index);
 119     if (item != 0) {
 120         const KUrl& url = item->url();
 121         mainWindow()->activeView()->setUrl(url);
 122     }
 123 }
 124
 125 void TreeViewSidebarPage::connectToActiveView()
 126 {
 127     const QWidget* parent = parentWidget();
 128     if ((parent == 0) || parent->isHidden()) {
 129         return;
 130     }
 131
 132     DolphinView* view = mainWindow()->activeView();
 133     const KUrl& url = view->url();
 134
 135     m_dirLister->stop();
 136     m_dirLister->openUrl(url);
 137     connect(view, SIGNAL(urlChanged(const KUrl&)),
 138             this, SLOT(updateSelection(const KUrl&)));
 139
 140     updateSelection(url);
 141 }
 142
 143 #include "treeviewsidebarpage.moc"