/****************************************************************************** $Id: qt/main.cpp   3.1.1   edited Nov 8 10:35 $**** Copyright (C) 1992-2001 Trolltech AS.  All rights reserved.**** This file is part of an example program for Qt.  This example** program may be used, distributed and modified without limitation.*******************************************************************************/#include "main.h"const char* red_icon[]={"16 16 2 1","r c red",". c None","................","................","..rrrrrrrrrrrr..","..rrrrrrrrrrrr..","..rrrrrrrrrrrr..","..rrr......rrr..","..rrr......rrr..","..rrr......rrr..","..rrr......rrr..","..rrr......rrr..","..rrr......rrr..","..rrrrrrrrrrrr..","..rrrrrrrrrrrr..","..rrrrrrrrrrrr..","................","................"};const char* blue_icon[]={"16 16 2 1","b c blue",". c None","................","................","..bbbbbbbbbbbb..","..bbbbbbbbbbbb..","..bbbbbbbbbbbb..","..bbb......bbb..","..bbb......bbb..","..bbb......bbb..","..bbb......bbb..","..bbb......bbb..","..bbb......bbb..","..bbbbbbbbbbbb..","..bbbbbbbbbbbb..","..bbbbbbbbbbbb..","................","................"};const char* green_icon[]={"16 16 2 1","g c green",". c None","................","................","..gggggggggggg..","..gggggggggggg..","..gggggggggggg..","..ggg......ggg..","..ggg......ggg..","..ggg......ggg..","..ggg......ggg..","..ggg......ggg..","..ggg......ggg..","..gggggggggggg..","..gggggggggggg..","..gggggggggggg..","................","................"};// ListBox -- low level drag and dropDDListBox::DDListBox( QWidget * parent, const char * name, WFlags f ) :    QListBox( parent, name, f ){    setAcceptDrops( TRUE );    dragging = FALSE;}void DDListBox::dragEnterEvent( QDragEnterEvent *evt ){    if ( QTextDrag::canDecode( evt ) ) 	evt->accept();}void DDListBox::dropEvent( QDropEvent *evt ){    QString text;    if ( QTextDrag::decode( evt, text ) ) 	insertItem( text );}void DDListBox::mousePressEvent( QMouseEvent *evt ){    QListBox::mousePressEvent( evt );    dragging = TRUE;}void DDListBox::mouseMoveEvent( QMouseEvent * ){    if ( dragging ) {	QDragObject *d = new QTextDrag( currentText(), this );	d->dragCopy(); // do NOT delete d.	dragging = FALSE;    }}// IconViewIcon -- high level drag and dropbool DDIconViewItem::acceptDrop( const QMimeSource *mime ) const{    if ( mime->provides( "text/plain" ) )	return TRUE;    return FALSE;}void DDIconViewItem::dropped( QDropEvent *evt, const QValueList<QIconDragItem>& ){    QString label;    if ( QTextDrag::decode( evt, label ) ) 	setText( label );}// IconView -- high level drag and dropQDragObject *DDIconView::dragObject(){  return new QTextDrag( currentItem()->text(), this );}void DDIconView::slotNewItem( QDropEvent *evt, const QValueList<QIconDragItem>& ){    QString label;    if ( QTextDrag::decode( evt, label ) ) {	DDIconViewItem *item = new DDIconViewItem( this, label );	item->setRenameEnabled( TRUE );    }}int main( int argc, char *argv[] ){    QApplication app( argc, argv );    // Create and show the widgets    QSplitter *split = new QSplitter();    DDIconView *iv   = new DDIconView( split );    (void)	       new DDListBox( split );    app.setMainWidget( split );    split->resize( 600, 400 );    split->show();    // Set up the connection so that we can drop items into the icon view    QObject::connect( 	iv, SIGNAL(dropped(QDropEvent*, const QValueList<QIconDragItem>&)), 	iv, SLOT(slotNewItem(QDropEvent*, const QValueList<QIconDragItem>&)));    // Populate the QIconView with icons    DDIconViewItem *item;    item = new DDIconViewItem( iv, "Red",   QPixmap( red_icon ) );    item->setRenameEnabled( TRUE );    item = new DDIconViewItem( iv, "Green", QPixmap( green_icon ) );    item->setRenameEnabled( TRUE );    item = new DDIconViewItem( iv, "Blue",  QPixmap( blue_icon ) );    item->setRenameEnabled( TRUE );    return app.exec();}