KFile
kfiletreeview.cpp
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00022 #include "kfiletreeview.h"
00023
00024 #include <QtCore/QDir>
00025 #include <QtGui/QContextMenuEvent>
00026 #include <QtGui/QMenu>
00027
00028 #include <kdirlister.h>
00029 #include <kdirmodel.h>
00030 #include <kdirsortfilterproxymodel.h>
00031 #include <kfileitemdelegate.h>
00032 #include <klocale.h>
00033 #include <ktoggleaction.h>
00034 #include <kurl.h>
00035
00036 class KFileTreeView::Private
00037 {
00038 public:
00039 Private(KFileTreeView *parent)
00040 : q(parent)
00041 {
00042 }
00043
00044 KUrl urlForProxyIndex(const QModelIndex &index) const;
00045
00046 void _k_activated(const QModelIndex&);
00047 void _k_currentChanged(const QModelIndex&, const QModelIndex&);
00048 void _k_expanded(const QModelIndex&);
00049
00050 KFileTreeView *q;
00051 KDirModel *mSourceModel;
00052 KDirSortFilterProxyModel *mProxyModel;
00053 };
00054
00055 KUrl KFileTreeView::Private::urlForProxyIndex(const QModelIndex &index) const
00056 {
00057 const KFileItem item = mSourceModel->itemForIndex(mProxyModel->mapToSource(index));
00058
00059 return !item.isNull() ? item.url() : KUrl();
00060 }
00061
00062 void KFileTreeView::Private::_k_activated(const QModelIndex &index)
00063 {
00064 const KUrl url = urlForProxyIndex(index);
00065 if (url.isValid())
00066 emit q->activated(url);
00067 }
00068
00069 void KFileTreeView::Private::_k_currentChanged(const QModelIndex ¤tIndex, const QModelIndex&)
00070 {
00071 const KUrl url = urlForProxyIndex(currentIndex);
00072 if (url.isValid())
00073 emit q->currentChanged(url);
00074 }
00075
00076 void KFileTreeView::Private::_k_expanded(const QModelIndex &baseIndex)
00077 {
00078 QModelIndex index = mProxyModel->mapFromSource(baseIndex);
00079
00080 q->selectionModel()->clearSelection();
00081 q->selectionModel()->setCurrentIndex(index, QItemSelectionModel::SelectCurrent);
00082 q->scrollTo(index);
00083 }
00084
00085 KFileTreeView::KFileTreeView(QWidget *parent)
00086 : QTreeView(parent), d(new Private(this))
00087 {
00088 d->mSourceModel = new KDirModel(this);
00089 d->mProxyModel = new KDirSortFilterProxyModel(this);
00090 d->mProxyModel->setSourceModel(d->mSourceModel);
00091
00092 setModel(d->mProxyModel);
00093 setItemDelegate(new KFileItemDelegate(this));
00094
00095 d->mSourceModel->dirLister()->openUrl(KUrl(QDir::root().absolutePath()), KDirLister::Keep);
00096
00097 connect(this, SIGNAL(activated(const QModelIndex&)),
00098 this, SLOT(_k_activated(const QModelIndex&)));
00099 connect(selectionModel(), SIGNAL(currentChanged(const QModelIndex&, const QModelIndex&)),
00100 this, SLOT(_k_currentChanged(const QModelIndex&, const QModelIndex&)));
00101
00102 connect(d->mSourceModel, SIGNAL(expand(const QModelIndex&)),
00103 this, SLOT(_k_expanded(const QModelIndex&)));
00104 }
00105
00106 KFileTreeView::~KFileTreeView()
00107 {
00108 delete d;
00109 }
00110
00111 KUrl KFileTreeView::currentUrl() const
00112 {
00113 return d->urlForProxyIndex(currentIndex());
00114 }
00115
00116 KUrl KFileTreeView::selectedUrl() const
00117 {
00118 if (!selectionModel()->hasSelection())
00119 return KUrl();
00120
00121 const QItemSelection selection = selectionModel()->selection();
00122 const QModelIndex firstIndex = selection.indexes().first();
00123
00124 return d->urlForProxyIndex(firstIndex);
00125 }
00126
00127 KUrl::List KFileTreeView::selectedUrls() const
00128 {
00129 KUrl::List urls;
00130
00131 if (!selectionModel()->hasSelection())
00132 return urls;
00133
00134 const QModelIndexList indexes = selectionModel()->selection().indexes();
00135 foreach (const QModelIndex &index, indexes) {
00136 const KUrl url = d->urlForProxyIndex(index);
00137 if (url.isValid())
00138 urls.append(url);
00139 }
00140
00141 return urls;
00142 }
00143
00144 KUrl KFileTreeView::rootUrl() const
00145 {
00146 return d->mSourceModel->dirLister()->url();
00147 }
00148
00149 void KFileTreeView::setDirOnlyMode(bool enabled)
00150 {
00151 d->mSourceModel->dirLister()->setDirOnlyMode(enabled);
00152 d->mSourceModel->dirLister()->openUrl(d->mSourceModel->dirLister()->url());
00153 }
00154
00155 void KFileTreeView::setShowHiddenFiles(bool enabled)
00156 {
00157 d->mSourceModel->dirLister()->setShowingDotFiles(enabled);
00158 d->mSourceModel->dirLister()->openUrl(d->mSourceModel->dirLister()->url());
00159 }
00160
00161 void KFileTreeView::setCurrentUrl(const KUrl &url)
00162 {
00163 QModelIndex baseIndex = d->mSourceModel->indexForUrl(url);
00164
00165 if (!baseIndex.isValid()) {
00166 d->mSourceModel->expandToUrl(url);
00167 return;
00168 }
00169
00170 QModelIndex proxyIndex = d->mProxyModel->mapFromSource(baseIndex);
00171 selectionModel()->clearSelection();
00172 selectionModel()->setCurrentIndex(proxyIndex, QItemSelectionModel::SelectCurrent);
00173 scrollTo(proxyIndex);
00174 }
00175
00176 void KFileTreeView::setRootUrl(const KUrl &url)
00177 {
00178 d->mSourceModel->dirLister()->openUrl(url);
00179 }
00180
00181 void KFileTreeView::contextMenuEvent(QContextMenuEvent *event)
00182 {
00183 QMenu menu;
00184 KToggleAction *showHiddenAction = new KToggleAction(i18n("Show Hidden Folders"), &menu);
00185 showHiddenAction->setChecked(d->mSourceModel->dirLister()->showingDotFiles());
00186 connect(showHiddenAction, SIGNAL(toggled(bool)), this, SLOT(setShowHiddenFiles(bool)));
00187
00188 menu.addAction(showHiddenAction);
00189 menu.exec(event->globalPos());
00190 }
00191
00192 #include "kfiletreeview.moc"