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/****************************************************************************
**
** Copyright (C) 1992-2008 Trolltech ASA. 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 drop
DDListBox::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 drop
bool 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 drop
QDragObject *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();
}
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