mirror of
https://github.com/transmission/transmission
synced 2024-12-25 17:17:31 +00:00
669 lines
17 KiB
C++
669 lines
17 KiB
C++
/*
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* This file Copyright (C) 2009-2010 Mnemosyne LLC
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*
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* This file is licensed by the GPL version 2. Works owned by the
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* Transmission project are granted a special exemption to clause 2(b)
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* so that the bulk of its code can remain under the MIT license.
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* This exemption does not extend to derived works not owned by
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* the Transmission project.
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*
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* $Id$
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*/
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#include <cassert>
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#include <iostream>
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#include <QApplication>
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#include <QHeaderView>
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#include <QPainter>
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#include <QResizeEvent>
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#include <QStringList>
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#include <libtransmission/transmission.h> // priorities
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#include "file-tree.h"
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#include "hig.h"
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#include "torrent.h" // FileList
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#include "utils.h" // mime icons
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enum
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{
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COL_NAME,
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COL_PROGRESS,
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COL_WANTED,
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COL_PRIORITY,
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NUM_COLUMNS
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};
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/****
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*****
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****/
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FileTreeItem :: ~FileTreeItem( )
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{
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assert( myChildren.isEmpty( ) );
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if( myParent ) {
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const int pos = myParent->myChildren.indexOf( this );
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if( pos >= 0 )
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myParent->myChildren.removeAt( pos );
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else
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assert( 0 && "failed to remove" );
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}
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}
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void
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FileTreeItem :: appendChild( FileTreeItem * child )
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{
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child->myParent = this;
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myChildren.append( child );
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}
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FileTreeItem *
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FileTreeItem :: child( const QString& filename )
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{
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foreach( FileTreeItem * c, myChildren )
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if( c->name() == filename )
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return c;
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return 0;
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}
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int
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FileTreeItem :: row( ) const
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{
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int i(0);
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if( myParent )
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i = myParent->myChildren.indexOf( const_cast<FileTreeItem*>(this) );
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return i;
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}
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QVariant
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FileTreeItem :: data( int column ) const
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{
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QVariant value;
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switch( column ) {
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case COL_NAME: value.setValue( fileSizeName( ) ); break;
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case COL_PROGRESS: value.setValue( progress( ) ); break;
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case COL_WANTED: value.setValue( isSubtreeWanted( ) ); break;
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case COL_PRIORITY: value.setValue( priorityString( ) ); break;
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}
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return value;
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}
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void
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FileTreeItem :: getSubtreeSize( uint64_t& have, uint64_t& total ) const
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{
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have += myHaveSize;
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total += myTotalSize;
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foreach( const FileTreeItem * i, myChildren )
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i->getSubtreeSize( have, total );
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}
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double
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FileTreeItem :: progress( ) const
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{
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double d(0);
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uint64_t have(0), total(0);
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getSubtreeSize( have, total );
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if( total )
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d = have / (double)total;
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return d;
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}
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QString
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FileTreeItem :: fileSizeName( ) const
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{
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uint64_t have(0), total(0);
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QString str;
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getSubtreeSize( have, total );
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str = QString( name() + " (%1)" ).arg( Utils::sizeToString( total ) );
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return str;
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}
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bool
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FileTreeItem :: update( int index, bool wanted, int priority, uint64_t totalSize, uint64_t haveSize, bool torrentChanged )
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{
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bool changed = false;
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if( myIndex != index )
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{
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myIndex = index;
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changed = true;
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}
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if( torrentChanged && myIsWanted != wanted )
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{
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myIsWanted = wanted;
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changed = true;
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}
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if( torrentChanged && myPriority != priority )
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{
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myPriority = priority;
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changed = true;
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}
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if( myTotalSize != totalSize )
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{
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myTotalSize = totalSize;
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changed = true;
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}
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if( myHaveSize != haveSize )
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{
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myHaveSize = haveSize;
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changed = true;
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}
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return changed;
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}
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QString
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FileTreeItem :: priorityString( ) const
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{
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const int i( priority( ) );
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if( i == LOW ) return tr( "Low" );
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if( i == HIGH ) return tr( "High" );
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if( i == NORMAL ) return tr( "Normal" );
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return tr( "Mixed" );
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}
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int
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FileTreeItem :: priority( ) const
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{
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int i( 0 );
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if( myChildren.isEmpty( ) ) switch( myPriority ) {
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case TR_PRI_LOW: i |= LOW; break;
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case TR_PRI_HIGH: i |= HIGH; break;
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default: i |= NORMAL; break;
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}
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foreach( const FileTreeItem * child, myChildren )
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i |= child->priority( );
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return i;
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}
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void
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FileTreeItem :: setSubtreePriority( int i, QSet<int>& ids )
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{
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if( myPriority != i ) {
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myPriority = i;
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if( myIndex >= 0 )
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ids.insert( myIndex );
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}
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foreach( FileTreeItem * child, myChildren )
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child->setSubtreePriority( i, ids );
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}
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void
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FileTreeItem :: twiddlePriority( QSet<int>& ids, int& p )
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{
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const int old( priority( ) );
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if ( old & LOW ) p = TR_PRI_NORMAL;
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else if( old & NORMAL ) p = TR_PRI_HIGH;
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else p = TR_PRI_LOW;
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setSubtreePriority( p, ids );
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}
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int
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FileTreeItem :: isSubtreeWanted( ) const
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{
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if( myChildren.isEmpty( ) )
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return myIsWanted ? Qt::Checked : Qt::Unchecked;
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int wanted( -1 );
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foreach( const FileTreeItem * child, myChildren ) {
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const int childWanted = child->isSubtreeWanted( );
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if( wanted == -1 )
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wanted = childWanted;
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if( wanted != childWanted )
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wanted = Qt::PartiallyChecked;
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if( wanted == Qt::PartiallyChecked )
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return wanted;
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}
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return wanted;
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}
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void
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FileTreeItem :: setSubtreeWanted( bool b, QSet<int>& ids )
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{
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if( myIsWanted != b ) {
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myIsWanted = b;
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if( myIndex >= 0 )
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ids.insert( myIndex );
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}
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foreach( FileTreeItem * child, myChildren )
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child->setSubtreeWanted( b, ids );
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}
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void
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FileTreeItem :: twiddleWanted( QSet<int>& ids, bool& wanted )
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{
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wanted = isSubtreeWanted( ) != Qt::Checked;
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setSubtreeWanted( wanted, ids );
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}
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/***
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****
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****
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***/
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FileTreeModel :: FileTreeModel( QObject *parent ):
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QAbstractItemModel(parent)
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{
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rootItem = new FileTreeItem( -1 );
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}
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FileTreeModel :: ~FileTreeModel( )
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{
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clear( );
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delete rootItem;
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}
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QVariant
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FileTreeModel :: data( const QModelIndex &index, int role ) const
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{
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QVariant value;
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if( index.isValid() && role==Qt::DisplayRole )
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{
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FileTreeItem *item = static_cast<FileTreeItem*>(index.internalPointer());
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value = item->data( index.column( ) );
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}
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return value;
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}
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Qt::ItemFlags
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FileTreeModel :: flags( const QModelIndex& index ) const
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{
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int i( Qt::ItemIsSelectable | Qt::ItemIsEnabled );
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if( index.column( ) == COL_WANTED )
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i |= Qt::ItemIsUserCheckable | Qt::ItemIsTristate;
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return (Qt::ItemFlags)i;
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}
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QVariant
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FileTreeModel :: headerData( int column, Qt::Orientation orientation, int role ) const
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{
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QVariant data;
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if( orientation==Qt::Horizontal && role==Qt::DisplayRole ) {
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switch( column ) {
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case COL_NAME: data.setValue( tr( "File" ) ); break;
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case COL_PROGRESS: data.setValue( tr( "Progress" ) ); break;
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case COL_WANTED: data.setValue( tr( "Download" ) ); break;
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case COL_PRIORITY: data.setValue( tr( "Priority" ) ); break;
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default: break;
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}
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}
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return data;
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}
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QModelIndex
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FileTreeModel :: index( int row, int column, const QModelIndex& parent ) const
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{
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QModelIndex i;
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if( !hasIndex( row, column, parent ) )
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{
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std::cerr << " I don't have this index " << std::endl;
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}
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else
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{
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FileTreeItem * 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<FileTreeItem*>(parent.internalPointer());
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FileTreeItem * childItem = parentItem->child( row );
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if( childItem )
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i = createIndex( row, column, childItem );
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//std::cerr << "FileTreeModel::index(row("<<row<<"),col("<<column<<"),parent("<<qPrintable(parentItem->name())<<")) is returning " << qPrintable(childItem->name()) << ": internalPointer " << i.internalPointer() << " row " << i.row() << " col " << i.column() << std::endl;
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}
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return i;
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}
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QModelIndex
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FileTreeModel :: parent( const QModelIndex& child ) const
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{
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return parent( child, 0 ); // QAbstractItemModel::parent() wants col 0
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}
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QModelIndex
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FileTreeModel :: parent( const QModelIndex& child, int column ) const
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{
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if( !child.isValid( ) )
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return QModelIndex( );
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FileTreeItem * childItem = static_cast<FileTreeItem*>(child.internalPointer());
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return indexOf( childItem->parent( ), column );
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}
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int
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FileTreeModel :: rowCount( const QModelIndex& parent ) const
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{
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FileTreeItem * 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<FileTreeItem*>(parent.internalPointer());
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return parentItem->childCount();
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}
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int
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FileTreeModel :: columnCount( const QModelIndex &parent ) const
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{
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Q_UNUSED( parent );
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return 4;
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}
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QModelIndex
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FileTreeModel :: indexOf( FileTreeItem * item, int column ) const
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{
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if( !item || item==rootItem )
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return QModelIndex( );
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return createIndex( item->row( ), column, item );
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}
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void
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FileTreeModel :: clearSubtree( const QModelIndex& top )
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{
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while( hasChildren( top ) )
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clearSubtree( index( 0, 0, top ) );
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delete static_cast<FileTreeItem*>(top.internalPointer());
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}
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void
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FileTreeModel :: clear( )
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{
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clearSubtree( QModelIndex( ) );
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reset( );
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}
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void
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FileTreeModel :: addFile( int index,
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const QString & filename,
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bool wanted,
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int priority,
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uint64_t size,
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uint64_t have,
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QList<QModelIndex> & rowsAdded,
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bool torrentChanged )
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{
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FileTreeItem * i( rootItem );
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foreach( QString token, filename.split( "/" ) )
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{
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FileTreeItem * child( i->child( token ) );
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if( !child )
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{
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QModelIndex parentIndex( indexOf( i, 0 ) );
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const int n( i->childCount( ) );
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beginInsertRows( parentIndex, n, n );
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i->appendChild(( child = new FileTreeItem( -1, token )));
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endInsertRows( );
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rowsAdded.append( indexOf( child, 0 ) );
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}
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i = child;
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}
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if( i != rootItem )
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if( i->update( index, wanted, priority, size, have, torrentChanged ) )
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dataChanged( indexOf( i, 0 ), indexOf( i, NUM_COLUMNS-1 ) );
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}
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void
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FileTreeModel :: parentsChanged( const QModelIndex& index, int column )
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{
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QModelIndex walk = index;
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for( ;; ) {
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walk = parent( walk, column );
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if( !walk.isValid( ) )
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break;
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dataChanged( walk, walk );
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}
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}
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void
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FileTreeModel :: subtreeChanged( const QModelIndex& index, int column )
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{
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const int childCount = rowCount( index );
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if( !childCount )
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return;
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// tell everyone that this tier changed
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dataChanged( index.child(0,column), index.child(childCount-1,column) );
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// walk the subtiers
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for( int i=0; i<childCount; ++i )
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subtreeChanged( index.child(i,column), column );
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}
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void
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FileTreeModel :: clicked( const QModelIndex& index )
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{
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const int column( index.column( ) );
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if( !index.isValid( ) )
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return;
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if( column == COL_WANTED )
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{
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FileTreeItem * item( static_cast<FileTreeItem*>(index.internalPointer()));
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bool want;
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QSet<int> fileIds;
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item->twiddleWanted( fileIds, want );
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emit wantedChanged( fileIds, want );
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dataChanged( index, index );
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parentsChanged( index, column );
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subtreeChanged( index, column );
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}
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else if( column == COL_PRIORITY )
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{
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FileTreeItem * item( static_cast<FileTreeItem*>(index.internalPointer()));
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int priority;
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QSet<int>fileIds;
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item->twiddlePriority( fileIds, priority );
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emit priorityChanged( fileIds, priority );
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dataChanged( index, index );
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parentsChanged( index, column );
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subtreeChanged( index, column );
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}
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}
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/****
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*****
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****/
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void
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FileTreeDelegate :: paint( QPainter * painter,
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const QStyleOptionViewItem & option,
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const QModelIndex & index ) const
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{
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const int column( index.column( ) );
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if( ( column != COL_PROGRESS ) && ( column != COL_WANTED ) && ( column != COL_NAME ) )
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{
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QItemDelegate::paint(painter, option, index);
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return;
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}
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QStyle * style( QApplication :: style( ) );
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if( option.state & QStyle::State_Selected )
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painter->fillRect( option.rect, option.palette.highlight( ) );
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painter->save();
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if( option.state & QStyle::State_Selected )
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painter->setBrush(option.palette.highlightedText());
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if( column == COL_NAME )
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{
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// draw the file icon
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static const int iconSize( style->pixelMetric( QStyle :: PM_SmallIconSize ) );
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const QRect iconArea( option.rect.x(),
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option.rect.y() + (option.rect.height()-iconSize)/2,
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iconSize, iconSize );
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QIcon icon;
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if( index.model()->hasChildren( index ) )
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icon = style->standardIcon( QStyle::StandardPixmap( QStyle::SP_DirOpenIcon ) );
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else
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icon = Utils :: guessMimeIcon( index.model()->data(index).toString( ) );
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icon.paint( painter, iconArea, Qt::AlignCenter, QIcon::Normal, QIcon::On );
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// draw the name
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QStyleOptionViewItem tmp( option );
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tmp.rect.setWidth( option.rect.width( ) - iconArea.width( ) - HIG::PAD_SMALL );
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tmp.rect.moveRight( option.rect.right( ) );
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QItemDelegate::paint( painter, tmp, index );
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}
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else if( column == COL_PROGRESS )
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{
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QStyleOptionProgressBar p;
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p.state = option.state | QStyle::State_Small;
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p.direction = QApplication::layoutDirection();
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p.rect = option.rect;
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p.rect.setSize( QSize( option.rect.width()-2, option.rect.height()-2 ) );
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p.rect.moveCenter( option.rect.center( ) );
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p.fontMetrics = QApplication::fontMetrics();
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p.minimum = 0;
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p.maximum = 100;
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p.textAlignment = Qt::AlignCenter;
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p.textVisible = true;
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p.progress = (int)(100.0*index.model()->data(index).toDouble());
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p.text = QString( ).sprintf( "%d%%", p.progress );
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style->drawControl( QStyle::CE_ProgressBar, &p, painter );
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}
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else if( column == COL_WANTED )
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{
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QStyleOptionButton o;
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o.state = option.state;
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o.direction = QApplication::layoutDirection();
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o.rect.setSize( QSize( 20, option.rect.height( ) ) );
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o.rect.moveCenter( option.rect.center( ) );
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o.fontMetrics = QApplication::fontMetrics();
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switch( index.model()->data(index).toInt() ) {
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case Qt::Unchecked: o.state |= QStyle::State_Off; break;
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case Qt::Checked: o.state |= QStyle::State_On; break;
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default: o.state |= QStyle::State_NoChange;break;
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}
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style->drawControl( QStyle::CE_CheckBox, &o, painter );
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}
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|
|
painter->restore( );
|
|
}
|
|
|
|
/****
|
|
*****
|
|
*****
|
|
*****
|
|
****/
|
|
|
|
FileTreeView :: FileTreeView( QWidget * parent ):
|
|
QTreeView( parent ),
|
|
myModel( this ),
|
|
myDelegate( this )
|
|
{
|
|
setAlternatingRowColors( true );
|
|
setSelectionBehavior( QAbstractItemView::SelectRows );
|
|
setSelectionMode( QAbstractItemView::ExtendedSelection );
|
|
setModel( &myModel );
|
|
setItemDelegate( &myDelegate );
|
|
setHorizontalScrollBarPolicy( Qt::ScrollBarAlwaysOff );
|
|
installEventFilter( this );
|
|
|
|
for( int i=0; i<=NUM_COLUMNS; ++i )
|
|
header()->setResizeMode( i, QHeaderView::Fixed );
|
|
|
|
connect( this, SIGNAL(clicked(const QModelIndex&)),
|
|
&myModel, SLOT(clicked(const QModelIndex&)));
|
|
|
|
connect( &myModel, SIGNAL(priorityChanged(const QSet<int>&, int)),
|
|
this, SIGNAL(priorityChanged(const QSet<int>&, int)));
|
|
|
|
connect( &myModel, SIGNAL(wantedChanged(const QSet<int>&, bool)),
|
|
this, SIGNAL(wantedChanged(const QSet<int>&, bool)));
|
|
}
|
|
|
|
bool
|
|
FileTreeView :: eventFilter( QObject * o, QEvent * event )
|
|
{
|
|
if( o != this )
|
|
return false;
|
|
|
|
// this is kind of a hack to get the last three columns be the
|
|
// right size, and to have the filename column use whatever
|
|
// space is left over...
|
|
if( event->type() == QEvent::Resize )
|
|
{
|
|
QResizeEvent * r = dynamic_cast<QResizeEvent*>(event);
|
|
int left = r->size().width();
|
|
const QFontMetrics fontMetrics( font( ) );
|
|
for( int column=0; column<NUM_COLUMNS; ++column ) {
|
|
if( column == COL_NAME )
|
|
continue;
|
|
if( isColumnHidden( column ) )
|
|
continue;
|
|
const QString header = myModel.headerData( column, Qt::Horizontal ).toString( ) + " ";
|
|
const int width = fontMetrics.size( 0, header ).width( );
|
|
setColumnWidth( column, width );
|
|
left -= width;
|
|
}
|
|
left -= 20; // not sure why this is necessary. it works in different themes + font sizes though...
|
|
setColumnWidth( COL_NAME, std::max(left,0) );
|
|
return false;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void
|
|
FileTreeView :: update( const FileList& files )
|
|
{
|
|
update( files, true );
|
|
}
|
|
|
|
void
|
|
FileTreeView :: update( const FileList& files, bool torrentChanged )
|
|
{
|
|
foreach( const TrFile file, files ) {
|
|
QList<QModelIndex> added;
|
|
myModel.addFile( file.index, file.filename, file.wanted, file.priority, file.size, file.have, added, torrentChanged );
|
|
foreach( QModelIndex i, added )
|
|
expand( i );
|
|
}
|
|
}
|
|
|
|
void
|
|
FileTreeView :: clear( )
|
|
{
|
|
myModel.clear( );
|
|
}
|