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/***************************************************************************
* $Id$
**
* Drop site example implementation
**
* Created : 979899
**
* Copyright (C) 1997 by 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.
**
****************************************************************************/
import org.kde.qt.*;
import java.util.*;
class DropSite extends QLabel
{
SecretSource s;
void setSecretSource(SecretSource source)
{
s = source;
}
DropSite( QWidget parent )
{
this(parent, null);
}
DropSite( QWidget parent, String name )
{
super( parent, name );
setAcceptDrops(true);
}
{
// nothing necessary
}
protected void dragMoveEvent( QDragMoveEvent e )
{
// Check if you want the drag at e.pos()...
// Give the user some feedback...
}
protected void dragEnterEvent( QDragEnterEvent e )
{
// Check if you want the drag...
if ( SecretDrag.canDecode( e )
|| QTextDrag.canDecode( e )
|| QImageDrag.canDecode( e )
|| QUriDrag.canDecode( e ) ) {
e.accept();
}
// Give the user some feedback...
String t = "";
for( int i=0; e.format( i ) != null; i++ ) {
t += "\n";
t += e.format( i );
}
emit("message", t );
setBackgroundColor(white());
}
protected void dragLeaveEvent( QDragLeaveEvent e )
{
// Give the user some feedback...
emit("message", "");
setBackgroundColor(lightGray());
}
protected void dropEvent( QDropEvent e )
{
setBackgroundColor(lightGray());
// Try to decode to the data you understand...
StringBuffer str = new StringBuffer("");
if ( QTextDrag.decode( e, str ) ) {
setText( str.toString() );
setMinimumSize( minimumSize().expandedTo( sizeHint() ) );
return;
}
QPixmap pm = new QPixmap();
if ( QImageDrag.decode( e, pm ) ) {
setPixmap( pm );
setMinimumSize( minimumSize().expandedTo( sizeHint() ) );
return;
}
ArrayList strings = new ArrayList();
if ( QUriDrag.decode( e, strings ) ) {
String m = "Full URLs:\n";
Iterator it = strings.iterator();
while (it.hasNext())
m += " " + (String) it.next() + "\n";
ArrayList files = new ArrayList();
if ( QUriDrag.decodeLocalFiles( e, files ) ) {
m = m + "Files:\n";
Iterator i = strings.iterator();
while (i.hasNext())
m = m + " " + (String) i.next() + "\n";
}
setText( m );
setMinimumSize( minimumSize().expandedTo( sizeHint() ) );
return;
}
if ( SecretDrag.decode( e, str ) ) {
setText( str.toString() );
setMinimumSize( minimumSize().expandedTo( sizeHint() ) );
return;
}
}
protected void mousePressEvent( QMouseEvent e )
{
QDragObject drobj;
if ( pixmap() != null ) {
drobj = new QImageDrag( pixmap().convertToImage(), this );
QPixmap pm = new QPixmap();
pm.convertFromImage(pixmap().convertToImage().smoothScale(
pixmap().width()/3,pixmap().height()/3));
drobj.setPixmap(pm,new QPoint(-5,-7));
// Try it.
// new DragMoviePlayer(drobj);
} else {
drobj = new QTextDrag( text(), this );
}
drobj.dragCopy();
}
class DragMoviePlayer extends QObject {
QDragObject dobj;
QMovie movie;
DragMoviePlayer( QDragObject p )
{
// QObject(p),
dobj = p;
movie = new QMovie("trolltech.gif" );
movie.connectUpdate(this,SLOT("updatePixmap(QRect)"));
}
void updatePixmap( QRect rect )
{
dobj.setPixmap(movie.framePixmap());
}
}
void backgroundColorChange( QColor color )
{
// Reduce flicker by using repaint() rather than update()
repaint();
}
}
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