346 lines
9.2 KiB
C++
346 lines
9.2 KiB
C++
/*
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* Cantata
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*
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* Copyright (c) 2011-2012 Craig Drummond <craig.p.drummond@gmail.com>
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*
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*/
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/*
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* Copyright (c) 2008 Sander Knopper (sander AT knopper DOT tk) and
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* Roeland Douma (roeland AT rullzer DOT com)
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*
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* This file is part of QtMPC.
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*
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* QtMPC is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* QtMPC is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with QtMPC. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <QtCore/QModelIndex>
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#include <QtCore/QString>
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#include <QtCore/QVariant>
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#include <QtCore/QMimeData>
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#include "localize.h"
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#include "dirviewmodel.h"
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#include "dirviewitem.h"
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#include "playqueuemodel.h"
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#include "itemview.h"
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#include "settings.h"
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#include "mpdconnection.h"
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#include "debugtimer.h"
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#include "icon.h"
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#ifdef ENABLE_KDE_SUPPORT
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K_GLOBAL_STATIC(DirViewModel, instance)
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#endif
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DirViewModel * DirViewModel::self()
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{
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#ifdef ENABLE_KDE_SUPPORT
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return instance;
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#else
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static DirViewModel *instance=0;
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if(!instance) {
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instance=new DirViewModel;
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}
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return instance;
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#endif
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}
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DirViewModel::DirViewModel(QObject *parent)
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: QAbstractItemModel(parent)
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, rootItem(new DirViewItemRoot)
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, enabled(false)
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{
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}
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DirViewModel::~DirViewModel()
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{
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delete rootItem;
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}
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void DirViewModel::setEnabled(bool e)
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{
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if (e==enabled) {
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return;
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}
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enabled=e;
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if (enabled) {
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connect(MPDConnection::self(), SIGNAL(dirViewUpdated(DirViewItemRoot *)), this, SLOT(updateDirView(DirViewItemRoot *)));
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} else {
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disconnect(MPDConnection::self(), SIGNAL(dirViewUpdated(DirViewItemRoot *)), this, SLOT(updateDirView(DirViewItemRoot *)));
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}
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}
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QModelIndex DirViewModel::index(int row, int column, const QModelIndex &parent) const
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{
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if (!hasIndex(row, column, parent)) {
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return QModelIndex();
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}
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const DirViewItem * parentItem;
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if (!parent.isValid()) {
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parentItem = rootItem;
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} else {
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parentItem = static_cast<DirViewItem *>(parent.internalPointer());
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}
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DirViewItem * const childItem = parentItem->child(row);
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if (childItem) {
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return createIndex(row, column, childItem);
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}
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return QModelIndex();
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}
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QModelIndex DirViewModel::parent(const QModelIndex &index) const
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{
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if (!index.isValid()) {
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return QModelIndex();
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}
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const DirViewItem * const childItem = static_cast<DirViewItem *>(index.internalPointer());
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DirViewItem * const parentItem = childItem->parent();
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if (parentItem == rootItem) {
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return QModelIndex();
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}
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return createIndex(parentItem->row(), 0, parentItem);
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}
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QVariant DirViewModel::headerData(int /*section*/, Qt::Orientation /*orientation*/, int /*role*/) const
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{
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return QVariant();
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}
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int DirViewModel::rowCount(const QModelIndex &parent) const
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{
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if (parent.column() > 0) {
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return 0;
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}
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const DirViewItem *parentItem;
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if (!parent.isValid()) {
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parentItem = rootItem;
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} else {
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parentItem = static_cast<DirViewItem *>(parent.internalPointer());
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}
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return parentItem->childCount();
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}
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int DirViewModel::columnCount(const QModelIndex &parent) const
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{
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if (parent.isValid()) {
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return static_cast<DirViewItem *>(parent.internalPointer())->columnCount();
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} else {
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return rootItem->columnCount();
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}
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}
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QVariant DirViewModel::data(const QModelIndex &index, int role) const
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{
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if (!index.isValid()) {
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return QVariant();
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}
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DirViewItem *item = static_cast<DirViewItem *>(index.internalPointer());
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switch (role) {
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case Qt::DecorationRole: {
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if (item->type() == DirViewItem::Type_Dir) {
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return Icon("inode-directory");
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} else if (item->type() == DirViewItem::Type_File) {
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return Icon("audio-x-generic");
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}
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break;
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}
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case Qt::DisplayRole:
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return item->data();
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case Qt::ToolTipRole:
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return 0==item->childCount()
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? item->data()
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:
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#ifdef ENABLE_KDE_SUPPORT
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i18np("%1\n1 Entry", "%1\n%2 Entries", item->data(), item->childCount());
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#else
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(item->childCount()>1
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? tr("%1\n%2 Entries").arg(item->data()).arg(item->childCount())
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: tr("%1\n1 Entry").arg(item->data()));
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#endif
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case ItemView::Role_SubText:
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switch (item->type()) {
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case DirViewItem::Type_Dir:
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#ifdef ENABLE_KDE_SUPPORT
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return i18np("1 Entry", "%1 Entries", item->childCount());
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#else
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return 1==item->childCount() ? tr("1 Entry") : tr("%1 Entries").arg(item->childCount());
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#endif
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break;
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case DirViewItem::Type_File:
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default: return QVariant();
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}
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default:
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break;
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}
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return QVariant();
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}
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void DirViewModel::clear()
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{
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updateDirView(new DirViewItemRoot());
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}
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void DirViewModel::updateDirView(DirViewItemRoot *newroot)
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{
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TF_DEBUG
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bool incremental=enabled && rootItem->childCount() && newroot->childCount();
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if (incremental) {
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QSet<QString> currentFiles=rootItem->allFiles();
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QSet<QString> updateFiles=newroot->allFiles();
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QSet<QString> removed=currentFiles-updateFiles;
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QSet<QString> added=updateFiles-currentFiles;
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foreach (const QString &s, added) {
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addFileToList(s);
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}
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foreach (const QString &s, removed) {
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removeFileFromList(s);
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}
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} else {
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const DirViewItemRoot *oldRoot = rootItem;
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beginResetModel();
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rootItem = newroot;
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delete oldRoot;
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endResetModel();
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}
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}
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void DirViewModel::addFileToList(const QString &file)
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{
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if (!enabled) {
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return;
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}
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addFileToList(file.split('/'), QModelIndex(), rootItem);
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}
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void DirViewModel::removeFileFromList(const QString &file)
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{
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if (!enabled) {
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return;
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}
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removeFileFromList(file.split('/'), QModelIndex(), rootItem);
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}
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void DirViewModel::addFileToList(const QStringList &parts, const QModelIndex &parent, DirViewItemDir *dir)
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{
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if (0==parts.count()) {
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return;
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}
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QString p=parts[0];
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DirViewItem *child=dir->child(p);
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if (child) {
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if (DirViewItem::Type_Dir==child->type()) {
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addFileToList(parts.mid(1), index(dir->indexOf(child), 0, parent), static_cast<DirViewItemDir *>(child));
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}
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} else {
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beginInsertRows(parent, dir->childCount(), dir->childCount());
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dir->insertFile(parts);
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endInsertRows();
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}
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}
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void DirViewModel::removeFileFromList(const QStringList &parts, const QModelIndex &parent, DirViewItemDir *dir)
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{
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if (0==parts.count()) {
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return;
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}
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QString p=parts[0];
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DirViewItem *child=dir->child(p);
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if (child) {
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if (DirViewItem::Type_Dir==child->type()) {
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removeFileFromList(parts.mid(1), index(dir->indexOf(child), 0, parent), static_cast<DirViewItemDir *>(child));
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} else if (DirViewItem::Type_File==child->type()) {
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int index=dir->indexOf(child);
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beginRemoveRows(parent, index, index);
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dir->remove(child);
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endRemoveRows();
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}
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}
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if (0==dir->childCount() && dir->parent()) {
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DirViewItemDir *pd=static_cast<DirViewItemDir *>(dir->parent());
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int index=pd->indexOf(dir);
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beginRemoveRows(parent.parent(), index, index);
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pd->remove(dir);
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delete dir;
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endRemoveRows();
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}
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}
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Qt::ItemFlags DirViewModel::flags(const QModelIndex &index) const
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{
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if (index.isValid()) {
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return Qt::ItemIsSelectable | Qt::ItemIsDragEnabled | Qt::ItemIsEnabled;
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} else {
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return Qt::ItemIsDropEnabled;
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}
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}
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QStringList DirViewModel::filenames(const QModelIndexList &indexes) const
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{
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QStringList fnames;
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foreach(QModelIndex index, indexes) {
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DirViewItem *item = static_cast<DirViewItem *>(index.internalPointer());
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recurseDirItems(*item, fnames);
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}
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return fnames;
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}
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QMimeData *DirViewModel::mimeData(const QModelIndexList &indexes) const
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{
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QMimeData *mimeData = new QMimeData();
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QStringList files=filenames(indexes);
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PlayQueueModel::encode(*mimeData, PlayQueueModel::constFileNameMimeType, files);
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if (!MPDConnection::self()->getDetails().dir.isEmpty()) {
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QStringList paths;
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foreach (const QString &f, files) {
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paths << MPDConnection::self()->getDetails().dir+f;
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}
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PlayQueueModel::encode(*mimeData, PlayQueueModel::constUriMimeType, paths);
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}
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return mimeData;
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}
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void DirViewModel::recurseDirItems(DirViewItem &parent, QStringList &filenames) const
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{
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if (parent.childCount() == 0) {
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if (!filenames.contains(parent.fullName())) {
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filenames << parent.fullName();
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}
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} else {
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for (int i = 0; i < parent.childCount(); i++) {
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recurseDirItems(*parent.child(i), filenames);
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}
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}
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}
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