listviews.cpp

dget是一个基于Linux平台的多线程下载工具, 采用C++开发。主要支持FTP, HTTP, MMS, RTSP协议下载, 目前为止主要实现了FTP, HTTP, MMS,RTSP协议的多线程下载

/*
 *	by balancesli 
 *  [e-mail]
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include "listviews.h"
#include "dget.h"

#include <qlabel.h>
#include <qpainter.h>
#include <qpalette.h>
#include <qobjectlist.h>
#include <qpopupmenu.h>
#include <qheader.h>
#include <qregexp.h>
#include <qlayout.h>
#include <qiconview.h>
#include <qtable.h>
#include <qmessagebox.h>
#include <qpixmap.h>
#include <qlistbox.h>
#include <qobject.h>



Folder::Folder( Folder *parent, const QString &name )
    : QObject( parent, name ), fName( name )
{
//    lstMessages.setAutoDelete( TRUE );
}

// -----------------------------------------------------------------

FolderListItem::FolderListItem( QListView *parent, Folder *f )
    : QListViewItem( parent )
{
    myFolder = f;
    setText( 0, f->folderName() );

    if ( myFolder->children() )
	insertSubFolders( myFolder->children() );
}

FolderListItem::FolderListItem( FolderListItem *parent, Folder *f )
    : QListViewItem( parent )
{

    myFolder = f;
	QPixmap icon0(INSTALLDIR"images/stopwait.png");	
	setPixmap(0, icon0);
    setText( 0, f->folderName() );

    if ( myFolder->children() )
		insertSubFolders( myFolder->children() );
}

void FolderListItem::insertSubFolders( const QObjectList *lst )
{
    Folder *f;
    for ( f = ( Folder* )( ( QObjectList* )lst )->first(); f; 
							f = ( Folder* )( ( QObjectList* )lst )->next() )
	(void)new FolderListItem( this, f );
}

// -----------------------------------------------------------------

MessageListItem::MessageListItem( QListView *parent, Message *m )
    : QListViewItem( parent )
{
    myMessage = m;
    setText( 0, myMessage->FileName() );
    setText( 1, myMessage->FileSize() );
    setText( 2, myMessage->Url() );
//    setText( 3, myMessage->GetReceived() );
//    setText( 4, myMessage->GetTimeLeft() );
	setText( 3, myMessage->datetime().toString() );
}

void MessageListItem::paintCell( QPainter *p, const QColorGroup &cg,
				 int column, int width, int alignment )
{
    QColorGroup _cg( cg );
    QColor c = _cg.text();

    if ( myMessage->state() == Message::Unread )
		_cg.setColor( QColorGroup::Text, Qt::red );

    QListViewItem::paintCell( p, _cg, column, width, alignment );

    _cg.setColor( QColorGroup::Text, c );
}

// -----------------------------------------------------------------

ThreadMsgListItem::ThreadMsgListItem( QListView * parent, ThreadMsg * m )
    : QListViewItem( parent )
{
    myThreadMsg = m;
	setText( 0, myThreadMsg->GetThreadId() );
    setText( 1, myThreadMsg->GetStatus() );
    setText( 2, myThreadMsg->GetReceived() );
	setText( 3, myThreadMsg->GetAvgSpeed() );
    setText( 4, myThreadMsg->GetPercent() );
}

void ThreadMsgListItem::paintCell( QPainter *p, const QColorGroup &cg,
				 int column, int width, int alignment )
{
    QColorGroup _cg( cg );
    QColor c = _cg.text();

    if ( myThreadMsg->state() == ThreadMsg::Unread )
		_cg.setColor( QColorGroup::Text, Qt::red );

    QListViewItem::paintCell( p, _cg, column, width, alignment );

    _cg.setColor( QColorGroup::Text, c );
}

// -----------------------------------------------------------------

ListViews::ListViews( QWidget *parent, const char *name )
    : QSplitter( Qt::Horizontal, parent, name )
{
	
//    lstFolders.setAutoDelete( TRUE );
    folders = new QListView( this );
	

    folders->header()->setClickEnabled( FALSE );
	folders->header()->setStretchEnabled( TRUE );
	folders->addColumn( tr("dgetwin") );
	initFolders();
    setupFolders();
	folders->setSorting(0, FALSE);
	folders->sort();

    folders->setRootIsDecorated( TRUE );
    setResizeMode( folders, QSplitter::KeepSize );
	
	QSplitter *vsplitter = new QSplitter( Qt::Vertical, this );
	
    messages = new QListView( vsplitter );
	messages->addColumn( tr("FileName") );
	messages->setColumnWidth(0, 200); 
	
    messages->addColumn( tr("FileSize") );
	messages->setColumnWidth(1, 200); 
//	messages->setColumnAlignment(1, Qt::AlignHCenter);

	messages->addColumn( tr("URL") );
	messages->setColumnWidth(2, 300); 
		
//	messages->addColumn( "Received" );   
//	messages->setColumnWidth(3, 150); 
//	messages->setColumnAlignment(3, Qt::AlignHCenter);
//	messages->addColumn( "TimeLeft" );   
//	messages->setColumnWidth(4, 150); 
// 	messages->setColumnAlignment(4, Qt::AlignHCenter);

	messages->addColumn( tr("Date") );  
	messages->setColumnWidth(3, 200); 
    
	messages->setAllColumnsShowFocus( TRUE );
    messages->setShowSortIndicator( TRUE );
 		
	tmTabWidget = new QTabWidget( vsplitter, "tmTabWidget" );
	
	contextmenu = new QPopupMenu( messages );	
    connect(
			messages,
			SIGNAL( contextMenuRequested( QListViewItem *, const QPoint& , int ) ),
	    	this, SLOT( slotRMB( QListViewItem *, const QPoint &, int ) )
			);

    vsplitter->setResizeMode( messages, QSplitter::KeepSize );
	
	connect( folders, SIGNAL( selectionChanged(QListViewItem *) ),
	     				this, SLOT( slotFolderChanged( QListViewItem* ) ) );
						
    connect( messages, SIGNAL( selectionChanged() ),
	     				this, SLOT( slotMessageChanged() ) );
						
//    connect( messages, SIGNAL( selectionChanged(QListViewItem *) ),
//	     				this, SLOT( slotMessageChanged( QListViewItem * ) ) );
   
 
    connect( this, SIGNAL( TabChanged( int ) ),
	     				tmTabWidget, SLOT( setCurrentPage( int ) ) );
	
    messages->setSelectionMode( QListView::Extended );
    folders->firstChild()->setOpen( TRUE );
    folders->firstChild()->firstChild()->setOpen( TRUE );
    //folders->setCurrentItem( folders->firstChild()->firstChild()->firstChild() );
    //folders->setSelected( folders->firstChild()->firstChild()->firstChild(), TRUE );
    folders->setCurrentItem( folders->firstChild()->firstChild());
    folders->setSelected( folders->firstChild()->firstChild(), TRUE );	
    messages->setSelected( messages->firstChild(), TRUE );
    messages->setCurrentItem( messages->firstChild() );
	
	/////////////////debug by balancesli/////////////////////	
/*		
	Folder * folder =  GetCurrentFolder();	
	int cnt = 1;
	for (  Message* msg = folder->firstMessage(); msg;
	  								msg = folder->nextMessage(), cnt++ )
	{
		QString str;
		str = QString( "Task%1" ).arg( cnt );
		InsertTabWidget(msg, str); 
	}
*/
	/////////////////debug by balancesli/////////////////////
	InsertDebugTabWidget(tr("DebugTask"));
	
	QValueList<int> lst;
    lst.append( 170 );
    setSizes( lst );
}

QWidget * ListViews :: GetCurrentTabPage()
{
	return tmTabWidget->currentPage();
}

QListView * ListViews ::GetCurrentThreadMsgs()
{
	QWidget * subtab = tmTabWidget->currentPage();
	QObjectList * objlist = subtab->queryList( "QListView" );
    QObjectListIt it( *objlist );
    QObject *obj;

    while ( (obj = it.current()) != 0 ) 
	{
    	if (obj->inherits( "QListView" ) == TRUE)
			break;   
        ++it;
    }
    delete objlist; 

	QListView * tds = (QListView *)obj;
	return tds;
}

Folder * ListViews::GetCurrentFolder()
{
	QListViewItem * i = folders->currentItem();
	FolderListItem * item = ( FolderListItem * )i;
	return item->folder();
}

Folder * ListViews :: GetFolderByName(QString& foldername)
{
	QListViewItem * i = folders->findItem ( foldername, 0);
	FolderListItem * item = ( FolderListItem * )i;
	return item->folder();
}

Message * ListViews::GetCurrentMsg()
{
	QListViewItem *i = messages->currentItem();
	Message * CurMsg = ((MessageListItem *)i)->message();
	return CurMsg;
}	
	
void ListViews::RefreshFolder(Folder * item)
{
    messages->clear();
   	for ( Message* msg = item->firstMessage(); msg; msg = item->nextMessage() )
		(void)new MessageListItem( messages, msg );
}

void ListViews::initFolders()
{
    unsigned int mcount = 1;

	QString dlist[3] = {
		tr("NewTaskBox"),
		tr("OldTaskBox"),
		tr("TrashBox")
	};
	
    for ( unsigned int i = 1; i < 2; i++ ) 
    {
		QString str;
		str = QString( tr("dget") );

		Folder *f1 = new Folder( 0, str );
		for ( unsigned int j = 0; j < 3; j++ )
		{
	    	QString str2;
			str2 = dlist[j];
	    	Folder *f2 = new Folder( f1, str2 );
//			initFolder( f2, mcount );
					
			/*    
	    	for ( unsigned int k = 1; k < 3; k++ ) 
			{
				QString str3;
				str3 = QString( "Sub Sub Folder %1" ).arg( k );
				Folder *f3 = new Folder( f2, str3 );
				initFolder( f3, mcount );
	    	}
			*/
			
		}
		lstFolders.append( f1 );
    }
}

/////////////////debug by balancesli/////////////////////	
void ListViews::initMessage( Message * msg, QListView * ThreadMsgs)
{
	ThreadMsgs->clear();
    for ( unsigned int i = 0; i < 4; i++)
    {
		ThreadMsg * tm = new ThreadMsg( "", "", "", "", "" );
		msg->addThreadMsg( tm );
		(void)new ThreadMsgListItem(ThreadMsgs, tm );
    }

}
	
void ListViews::initFolder( Folder *folder, unsigned int &count )
{
/* 
    unsigned int mcount = 0;
    for ( unsigned int i = 0; i < 1; i++, mcount++ )
    {
		QString str;
		str = "ftp://ftp.gtk.org/pub/gtk/v2.8/pango-1.10.3.tar.bz2";
		QDateTime dt = QDateTime::currentDateTime();
		dt = dt.addSecs( 60 * count );
		Message * msg = new Message( "pango-1.10.3.tar.bz2", 
										"1234k", "DOWNLOADING", str, dt, "100Sec");
		folder->addMessage( msg );
    }
*/
}
/////////////////debug by balancesli/////////////////////

void ListViews::setupFolders()
{
    folders->clear();

    for ( Folder* f = lstFolders.first(); f; f = lstFolders.next() )
	{
		(void)new FolderListItem( folders, f );	
	}
}

void ListViews::slotRMB( QListViewItem* Item, const QPoint & point, int )
{
    if( Item )
		contextmenu->popup( point );
}

void ListViews::slotFolderChanged( QListViewItem *i )
{

    if ( !i )
		return;
    messages->clear();
    FolderListItem *item = ( FolderListItem* )i;
    for ( Message* msg = item->folder()->firstMessage(); msg;
	  								msg = item->folder()->nextMessage() )
	{
		(void)new MessageListItem( messages, msg );
	}

}

void ListViews::slotMessageChanged()
{	
	QString s2 = tr("NewTaskBox");
	QListViewItem * j = folders->findItem ( s2, 0);
	
	if ( !j )
		return;
    if ( !j->isSelected() ) 
		return;

    QListViewItem *i = messages->currentItem();
	  
	if ( !i )
		return;

    if ( !i->isSelected() ) 
		return;
		
	Message * CurMsg = ((MessageListItem *)i)->message();
	CurMsg->setState( Message::Read );
	Folder * folder =  GetCurrentFolder();	
    int cnt = 0;
	for ( Message* msg = folder->firstMessage(); msg;
	  								msg = folder->nextMessage(), ++cnt )
	{
		if(CurMsg == msg)
		{
			emit TabChanged(++cnt);
			break;
		}
	}	
	
/*	
    MessageListItem *item = ( MessageListItem* )i;
    Message *msg = item->message();
    msg->setState( Message::Read );
*/

}

void ListViews::slotThreadMsgChanged(QListViewItem * i)
{
    if ( !i )
		return;

    if ( !i->isSelected() ) 
		return;

    ThreadMsgListItem *item = ( ThreadMsgListItem* )i;
    ThreadMsg * tm = item->threadmsg();
    tm->setState( ThreadMsg::Read );	
}

void ListViews::InsertDebugTabWidget(const QString & label)
{    
	QWidget* tmsubtab2 = new QWidget( tmTabWidget, "tmsubtab" );
   	QGridLayout * tmLayout2 = new QGridLayout( tmsubtab2, 1, 1, 11, 6, "tabLayout"); 
	dout = new QListBox( tmsubtab2, "listBox" );
	tmLayout2->addWidget( dout, 0, 0 );
   	tmTabWidget->insertTab( tmsubtab2, label );				
}

void ListViews::InsertTabWidget(Message * msg, const QString & label)
{    

	QWidget* tmsubtab2 = new QWidget( tmTabWidget, "tmsubtab" );
   	QGridLayout * tmLayout2 = new QGridLayout( tmsubtab2, 1, 1, 11, 6, "tabLayout"); 
	
   	QListView * ThreadMsgs = new QListView( tmsubtab2 );
	ThreadMsgs->header()->setStretchEnabled( TRUE );
	ThreadMsgs->addColumn( tr("Thread") );
   	ThreadMsgs->addColumn( tr("Status") );
	ThreadMsgs->addColumn( tr("Received") );
	ThreadMsgs->addColumn( tr("AvgSpeed") );
   	ThreadMsgs->addColumn( tr("Percent") );
   	ThreadMsgs->setAllColumnsShowFocus( TRUE );
   	ThreadMsgs->setShowSortIndicator( TRUE );
	ThreadMsgs->setResizeMode( QListView::AllColumns );
	
   	tmLayout2->addWidget( ThreadMsgs, 0, 0 );
   	tmTabWidget->insertTab( tmsubtab2, label );
	msg->ThreadMsgs = ThreadMsgs;

    connect( ThreadMsgs, SIGNAL( currentChanged( QListViewItem * ) ),
	     				this, SLOT( slotThreadMsgChanged(QListViewItem * ) ) );
						
						
}