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/****************************************************************************
**
** Drop site example implementation
**
** Created : 979899
**
** Copyright (C) 1997-2008 Trolltech ASA. All rights reserved.
**
** This file is part of an example program for TQt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include "dropsite.h"
#include "secret.h"
#include <ntqevent.h>
#include <tqpixmap.h>
#include <tqdragobject.h>
#include <tqimage.h>
#include <tqdir.h>
DropSite::DropSite( TQWidget * parent, const char * name )
: TQLabel( parent, name )
{
setAcceptDrops(TRUE);
}
DropSite::~DropSite()
{
// nothing necessary
}
void DropSite::dragMoveEvent( TQDragMoveEvent *e )
{
// Check if you want the drag at e->pos()...
// Give the user some feedback - only copy is possible
e->acceptAction( e->action() == TQDropEvent::Copy );
}
void DropSite::dragEnterEvent( TQDragEnterEvent *e )
{
// Check if you want the drag...
if ( SecretDrag::canDecode( e )
|| TQTextDrag::canDecode( e )
|| TQImageDrag::canDecode( e )
|| TQUriDrag::canDecode( e ) )
{
e->accept();
}
// Give the user some feedback...
TQString t;
const char *f;
for( int i=0; (f=e->format( i )); i++ ) {
if ( *(f) ) {
if ( !t.isEmpty() )
t += "\n";
t += f;
}
}
emit message( t );
setBackgroundColor(white);
}
void DropSite::dragLeaveEvent( TQDragLeaveEvent * )
{
// Give the user some feedback...
emit message("");
setBackgroundColor(lightGray);
}
void DropSite::dropEvent( TQDropEvent * e )
{
setBackgroundColor(lightGray);
// Try to decode to the data you understand...
TQStrList strings;
if ( TQUriDrag::decode( e, strings ) ) {
TQString m("Full URLs:\n");
for (const char* u=strings.first(); u; u=strings.next())
m = m + " " + u + '\n';
TQStringList files;
if ( TQUriDrag::decodeLocalFiles( e, files ) ) {
m += "Files:\n";
for (TQStringList::Iterator i=files.begin(); i!=files.end(); ++i)
m = m + " " + TQDir::convertSeparators(*i) + '\n';
}
setText( m );
setMinimumSize( minimumSize().expandedTo( sizeHint() ) );
return;
}
TQString str;
if ( TQTextDrag::decode( e, str ) ) {
setText( str );
setMinimumSize( minimumSize().expandedTo( sizeHint() ) );
return;
}
TQPixmap pm;
if ( TQImageDrag::decode( e, pm ) ) {
setPixmap( pm );
setMinimumSize( minimumSize().expandedTo( sizeHint() ) );
return;
}
if ( SecretDrag::decode( e, str ) ) {
setText( str );
setMinimumSize( minimumSize().expandedTo( sizeHint() ) );
return;
}
}
DragMoviePlayer::DragMoviePlayer( TQDragObject* p ) :
TQObject(p),
dobj(p),
movie("trolltech.gif" )
{
movie.connectUpdate(this,TQ_SLOT(updatePixmap(const TQRect&)));
}
void DragMoviePlayer::updatePixmap( const TQRect& )
{
dobj->setPixmap(movie.framePixmap());
}
void DropSite::mousePressEvent( TQMouseEvent * /*e*/ )
{
TQDragObject *drobj;
if ( pixmap() ) {
drobj = new TQImageDrag( pixmap()->convertToImage(), this );
#if 1
TQPixmap pm;
pm.convertFromImage(pixmap()->convertToImage().smoothScale(
pixmap()->width()/3,pixmap()->height()/3));
drobj->setPixmap(pm,TQPoint(-5,-7));
#else
// Try it.
(void)new DragMoviePlayer(drobj);
#endif
} else {
drobj = new TQTextDrag( text(), this );
}
drobj->dragCopy();
}
void DropSite::backgroundColorChange( const TQColor & )
{
// Reduce flicker by using repaint() rather than update()
repaint();
}
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