141 lines
3.8 KiB
C++
141 lines
3.8 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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* This program 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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* This program 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 GNU
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* 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 this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "playqueueview.h"
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#include "playqueuemodel.h"
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#include <QtGui/QStyledItemDelegate>
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#include <QtGui/QApplication>
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#include <QtGui/QFontMetrics>
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#include <QtCore/QDebug>
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static const int constIconSize=16;
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static const int constBorder=1;
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class PlayQueueDelegate : public QStyledItemDelegate
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{
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public:
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enum Type {
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AlbumHeader,
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AlbumTrack,
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SingleTrack
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};
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PlayQueueDelegate(QObject *p)
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: QStyledItemDelegate(p)
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{
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}
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virtual ~PlayQueueDelegate()
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{
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}
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Type getType(const QModelIndex &index) const
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{
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QModelIndex prev=index.row()>0 ? index.sibling(index.row()-1, 0) : QModelIndex();
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unsigned long thisKey=index.data(PlayQueueView::Role_Key).toUInt();
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unsigned long prevKey=prev.isValid() ? prev.data(PlayQueueView::Role_Key).toUInt() : 0xFFFFFFFF;
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if (thisKey==prevKey) {
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// Album Track
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return AlbumTrack;
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}
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QModelIndex next=index.sibling(index.row()+1, 0);
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unsigned long nextKey=next.isValid() ? next.data(PlayQueueView::Role_Key).toUInt() : 0xFFFFFFFF;
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if (thisKey==nextKey) {
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// Album header...
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return AlbumHeader;
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}
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// Single track
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return SingleTrack;
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}
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QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
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{
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QSize sz=QStyledItemDelegate::sizeHint(option, index);
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if (0==index.column()) {
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if (AlbumHeader==getType(index)) {
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int textHeight = QApplication::fontMetrics().height()*2;
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return QSize(sz.width(), textHeight+(2*constBorder));
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}
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return QSize(sz.width(), qMax(sz.height(), constIconSize+(2*constBorder)));
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}
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return sz;
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}
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void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
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{
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if (!index.isValid()) {
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return;
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}
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QApplication::style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &option, painter, 0L);
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// Type type=getType(index);
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}
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};
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PlayQueueView::PlayQueueView(QWidget *parent)
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: TreeView(parent)
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, grouped(true)
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, prev(0)
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, custom(0)
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{
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setContextMenuPolicy(Qt::CustomContextMenu);
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setAcceptDrops(true);
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setDragEnabled(true);
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setDragDropOverwriteMode(false);
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setDragDropMode(QAbstractItemView::DragDrop);
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setSelectionMode(QAbstractItemView::ExtendedSelection);
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setIndentation(0);
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setItemsExpandable(false);
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setExpandsOnDoubleClick(false);
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setGrouped(false);
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}
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PlayQueueView::~PlayQueueView()
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{
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}
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void PlayQueueView::setGrouped(bool g)
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{
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if (g==grouped) {
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return;
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}
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grouped=g;
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if (grouped) {
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if (!custom) {
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custom=new PlayQueueDelegate(this);
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}
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if (!prev) {
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prev=itemDelegate();
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}
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setItemDelegate(custom);
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} else if (prev) {
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setItemDelegate(prev);
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}
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setUniformRowHeights(!grouped);
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}
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