410 lines
12 KiB
C++
410 lines
12 KiB
C++
/*
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* This file Copyright (C) 2009-2015 Mnemosyne LLC
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*
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* It may be used under the GNU GPL versions 2 or 3
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* or any future license endorsed by Mnemosyne LLC.
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*
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* $Id$
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*/
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#include <algorithm>
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#include <cassert>
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#include <QHeaderView>
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#include <QMenu>
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#include <QQueue>
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#include <QResizeEvent>
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#include <QSortFilterProxyModel>
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#include <libtransmission/transmission.h> // priorities
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#include "FileTreeDelegate.h"
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#include "FileTreeItem.h"
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#include "FileTreeModel.h"
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#include "FileTreeView.h"
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#include "Formatter.h"
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#include "Utils.h"
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#define PRIORITY_KEY "priority"
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FileTreeView::FileTreeView (QWidget * parent, bool isEditable):
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QTreeView (parent),
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myModel (new FileTreeModel (this, isEditable)),
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myProxy (new QSortFilterProxyModel (this)),
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myDelegate (new FileTreeDelegate (this))
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{
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myProxy->setSourceModel (myModel);
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myProxy->setSortRole (FileTreeModel::SortRole);
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myProxy->setSortCaseSensitivity (Qt::CaseInsensitive);
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setModel (myProxy);
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setItemDelegate (myDelegate);
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sortByColumn (FileTreeModel::COL_NAME, Qt::AscendingOrder);
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connect (this, SIGNAL(clicked(QModelIndex)),
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this, SLOT(onClicked(QModelIndex)));
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connect (myModel, SIGNAL(priorityChanged(QSet<int>, int)),
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this, SIGNAL(priorityChanged(QSet<int>, int)));
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connect (myModel, SIGNAL(wantedChanged(QSet<int>, bool)),
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this, SIGNAL(wantedChanged(QSet<int>, bool)));
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connect (myModel, SIGNAL(pathEdited(QString, QString)),
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this, SIGNAL(pathEdited(QString, QString)));
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connect (myModel, SIGNAL (openRequested (QString)),
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this, SIGNAL (openRequested (QString)));
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}
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void
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FileTreeView::onClicked (const QModelIndex& proxyIndex)
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{
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const QModelIndex modelIndex = myProxy->mapToSource (proxyIndex);
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if (modelIndex.column () == FileTreeModel::COL_WANTED)
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myModel->twiddleWanted (QModelIndexList () << modelIndex);
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else if (modelIndex.column () == FileTreeModel::COL_PRIORITY)
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myModel->twiddlePriority (QModelIndexList () << modelIndex);
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}
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void
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FileTreeView::resizeEvent (QResizeEvent * event)
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{
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QTreeView::resizeEvent (event);
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// this is kind of a hack to get the last four columns be the
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// right size, and to have the filename column use whatever
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// space is left over...
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int left = event->size ().width () - 1;
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for (int column = 0; column < FileTreeModel::NUM_COLUMNS; ++column)
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{
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if (column == FileTreeModel::COL_NAME)
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continue;
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int minWidth = 0;
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QStringList itemTexts;
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switch (column)
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{
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case FileTreeModel::COL_SIZE:
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for (int s = Formatter::B; s <= Formatter::TB; ++s)
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itemTexts << QLatin1String ("999.9 ") +
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Formatter::unitStr (Formatter::MEM, static_cast<Formatter::Size> (s));
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break;
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case FileTreeModel::COL_PROGRESS:
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itemTexts << QLatin1String (" 100% ");
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break;
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case FileTreeModel::COL_WANTED:
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minWidth = 20;
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break;
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case FileTreeModel::COL_PRIORITY:
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itemTexts << FileTreeItem::tr ("Low") << FileTreeItem::tr ("Normal") <<
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FileTreeItem::tr ("High") << FileTreeItem::tr ("Mixed");
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break;
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}
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int itemWidth = 0;
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for (const QString& itemText: itemTexts)
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itemWidth = std::max (itemWidth, Utils::measureViewItem (this, itemText));
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const QString headerText = myModel->headerData (column, Qt::Horizontal).toString ();
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int headerWidth = Utils::measureHeaderItem (this->header (), headerText);
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const int width = std::max (minWidth, std::max (itemWidth, headerWidth));
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setColumnWidth (column, width);
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left -= width;
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}
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setColumnWidth (FileTreeModel::COL_NAME, std::max (left, 0));
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}
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void
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FileTreeView::keyPressEvent (QKeyEvent * event)
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{
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if (state () != EditingState)
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{
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if (event->key () == Qt::Key_Space)
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{
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// handle using the keyboard to toggle the
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// wanted/unwanted state or the file priority
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const Qt::KeyboardModifiers modifiers = event->modifiers ();
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if (modifiers == Qt::NoModifier)
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{
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myModel->twiddleWanted (selectedSourceRows ());
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return;
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}
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if (modifiers == Qt::ShiftModifier)
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{
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myModel->twiddlePriority (selectedSourceRows ());
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return;
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}
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}
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}
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QTreeView::keyPressEvent (event);
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}
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void
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FileTreeView::mouseDoubleClickEvent (QMouseEvent * event)
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{
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const QModelIndex index = currentIndex ();
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if (!index.isValid () || index.column () == FileTreeModel::COL_WANTED || index.column () == FileTreeModel::COL_PRIORITY)
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return;
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if (openSelectedItem ())
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return;
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QTreeView::mouseDoubleClickEvent (event);
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}
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void
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FileTreeView::contextMenuEvent (QContextMenuEvent * event)
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{
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const QModelIndex rootIndex = myModel->index (0, 0);
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if (!rootIndex.isValid ())
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return;
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if (myContextMenu == nullptr)
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initContextMenu ();
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myContextMenu->popup (event->globalPos ());
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}
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void
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FileTreeView::update (const FileList& files, bool updateFields)
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{
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const bool modelWasEmpty = myProxy->rowCount () == 0;
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for (const TorrentFile& file: files)
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myModel->addFile (file.index, file.filename, file.wanted, file.priority, file.size, file.have, updateFields);
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if (modelWasEmpty)
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{
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// expand up until the item with more than one expandable child
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for (QModelIndex index = myProxy->index (0, 0); index.isValid ();)
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{
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const QModelIndex oldIndex = index;
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expand (oldIndex);
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index = QModelIndex ();
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for (int i = 0, count = myProxy->rowCount (oldIndex); i < count; ++i)
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{
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const QModelIndex newIndex = myProxy->index (i, 0, oldIndex);
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if (myProxy->rowCount (newIndex) == 0)
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continue;
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if (index.isValid ())
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{
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index = QModelIndex ();
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break;
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}
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index = newIndex;
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}
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}
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}
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myProxy->sort (header ()->sortIndicatorSection (), header ()->sortIndicatorOrder ());
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}
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void
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FileTreeView::clear ()
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{
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myModel->clear();
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}
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void
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FileTreeView::setEditable (bool editable)
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{
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myModel->setEditable (editable);
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}
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bool
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FileTreeView::edit (const QModelIndex& index, EditTrigger trigger, QEvent * event)
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{
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if (selectionModel ()->selectedRows ().size () != 1)
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return false;
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const QModelIndex nameIndex = index.sibling (index.row (), FileTreeModel::COL_NAME);
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if (editTriggers ().testFlag (trigger))
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selectionModel ()->setCurrentIndex (nameIndex, QItemSelectionModel::NoUpdate);
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return QTreeView::edit (nameIndex, trigger, event);
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}
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void
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FileTreeView::checkSelectedItems ()
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{
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myModel->setWanted (selectedSourceRows (), true);
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}
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void
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FileTreeView::uncheckSelectedItems ()
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{
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myModel->setWanted (selectedSourceRows (), false);
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}
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void
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FileTreeView::onlyCheckSelectedItems ()
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{
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const QModelIndex rootIndex = myModel->index (0, 0);
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if (!rootIndex.isValid ())
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return;
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QModelIndexList wantedIndices = selectedSourceRows ();
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myModel->setWanted (wantedIndices, true);
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qSort (wantedIndices);
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QSet<QModelIndex> wantedIndicesParents;
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for (const QModelIndex& i: wantedIndices)
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{
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for (QModelIndex p = i.parent (); p.isValid (); p = p.parent ())
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wantedIndicesParents.insert (p);
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}
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QQueue<QModelIndex> parentsQueue;
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parentsQueue.enqueue (rootIndex);
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QModelIndexList unwantedIndices;
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while (!parentsQueue.isEmpty ())
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{
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const QModelIndex parentIndex = parentsQueue.dequeue ();
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if (qBinaryFind (wantedIndices, parentIndex) != wantedIndices.end ())
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continue;
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for (int i = 0, count = myModel->rowCount (parentIndex); i < count; ++i)
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{
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const QModelIndex childIndex = parentIndex.child (i, 0);
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const int childCheckState = childIndex.data (FileTreeModel::WantedRole).toInt ();
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if (childCheckState == Qt::Unchecked || qBinaryFind (wantedIndices, childIndex) != wantedIndices.end ())
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continue;
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if (childCheckState == Qt::Checked && childIndex.data (FileTreeModel::FileIndexRole).toInt () >= 0)
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{
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unwantedIndices << childIndex;
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}
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else
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{
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if (!wantedIndicesParents.contains (childIndex))
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unwantedIndices << childIndex;
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else
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parentsQueue.enqueue (childIndex);
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}
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}
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}
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myModel->setWanted (unwantedIndices, false);
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}
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void
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FileTreeView::setSelectedItemsPriority ()
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{
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QAction * action = qobject_cast<QAction *> (sender ());
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assert (action != nullptr);
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myModel->setPriority (selectedSourceRows (), action->property (PRIORITY_KEY).toInt ());
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}
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bool
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FileTreeView::openSelectedItem ()
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{
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return myModel->openFile (myProxy->mapToSource (currentIndex ()));
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}
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void
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FileTreeView::renameSelectedItem ()
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{
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QTreeView::edit (currentIndex ());
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}
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void
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FileTreeView::refreshContextMenuActionsSensitivity ()
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{
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assert (myContextMenu != nullptr);
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const QModelIndexList selectedRows = selectionModel ()->selectedRows ();
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const Qt::CheckState checkState = getCumulativeCheckState (selectedRows);
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const bool haveSelection = !selectedRows.isEmpty ();
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const bool haveSingleSelection = selectedRows.size() == 1;
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const bool haveUnchecked = checkState == Qt::Unchecked || checkState == Qt::PartiallyChecked;
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const bool haveChecked = checkState == Qt::Checked || checkState == Qt::PartiallyChecked;
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myCheckSelectedAction->setEnabled (haveUnchecked);
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myUncheckSelectedAction->setEnabled (haveChecked);
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myOnlyCheckSelectedAction->setEnabled (haveSelection);
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myPriorityMenu->setEnabled (haveSelection);
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myOpenAction->setEnabled (haveSingleSelection &&
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selectedRows.first ().data (FileTreeModel::FileIndexRole).toInt () >= 0 &&
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selectedRows.first ().data (FileTreeModel::CompleteRole).toBool ());
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myRenameAction->setEnabled (haveSingleSelection);
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}
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void
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FileTreeView::initContextMenu ()
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{
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myContextMenu = new QMenu (this);
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myCheckSelectedAction = myContextMenu->addAction (tr ("Check Selected"), this, SLOT (checkSelectedItems ()));
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myUncheckSelectedAction = myContextMenu->addAction (tr ("Uncheck Selected"), this, SLOT (uncheckSelectedItems ()));
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myOnlyCheckSelectedAction = myContextMenu->addAction (tr ("Only Check Selected"), this, SLOT (onlyCheckSelectedItems ()));
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myContextMenu->addSeparator ();
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myPriorityMenu = myContextMenu->addMenu (tr ("Priority"));
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myHighPriorityAction = myPriorityMenu->addAction (FileTreeItem::tr ("High"), this, SLOT (setSelectedItemsPriority ()));
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myNormalPriorityAction = myPriorityMenu->addAction (FileTreeItem::tr ("Normal"), this, SLOT (setSelectedItemsPriority ()));
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myLowPriorityAction = myPriorityMenu->addAction (FileTreeItem::tr ("Low"), this, SLOT (setSelectedItemsPriority ()));
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myHighPriorityAction->setProperty (PRIORITY_KEY, TR_PRI_HIGH);
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myNormalPriorityAction->setProperty (PRIORITY_KEY, TR_PRI_NORMAL);
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myLowPriorityAction->setProperty (PRIORITY_KEY, TR_PRI_LOW);
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myContextMenu->addSeparator ();
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myOpenAction = myContextMenu->addAction (tr ("Open"), this, SLOT (openSelectedItem ()));
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myRenameAction = myContextMenu->addAction (tr ("Rename..."), this, SLOT (renameSelectedItem ()));
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connect (myContextMenu, SIGNAL (aboutToShow ()), SLOT (refreshContextMenuActionsSensitivity ()));
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}
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QModelIndexList
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FileTreeView::selectedSourceRows (int column) const
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{
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QModelIndexList indices;
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for (const QModelIndex& i: selectionModel ()->selectedRows (column))
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indices << myProxy->mapToSource (i);
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return indices;
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}
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Qt::CheckState
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FileTreeView::getCumulativeCheckState (const QModelIndexList& indices)
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{
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bool haveChecked = false, haveUnchecked = false;
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for (const QModelIndex& i: indices)
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{
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switch (i.data (FileTreeModel::WantedRole).toInt ())
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{
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case Qt::Checked:
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haveChecked = true;
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break;
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case Qt::Unchecked:
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haveUnchecked = true;
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break;
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case Qt::PartiallyChecked:
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return Qt::PartiallyChecked;
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}
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if (haveChecked && haveUnchecked)
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return Qt::PartiallyChecked;
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}
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return haveChecked ? Qt::Checked : Qt::Unchecked;
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}
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