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tdeutils/khexedit/draglabel.cc

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/*
* khexedit - Versatile hex editor
* Copyright (C) 1999-2000 Espen Sand, espensa@online.no
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include <stdlib.h>
#include <tqbitmap.h>
#include <tqpainter.h>
#include <kurldrag.h>
#include "draglabel.h"
CDragLabel::CDragLabel( TQWidget *tqparent )
: TQLabel( "draglabel", tqparent, "kde toolbar widget" )
{
mValid = true;
mDragPending = false;
setBackgroundMode( TQt::PaletteButton );
}
CDragLabel::~CDragLabel( void )
{
}
void CDragLabel::mousePressEvent( TQMouseEvent *e )
{
if( mValid == false || e->button() != Qt::LeftButton || mUrl.isEmpty() == true )
{
return;
}
mDragOrigin = e->pos();
mDragPending = true;
}
void CDragLabel::mouseMoveEvent( TQMouseEvent *e )
{
if( mDragPending == true )
{
if( abs(e->x() - mDragOrigin.x()) + abs(e->y() - mDragOrigin.y()) > 5 )
{
mDragPending = false;
//
// Make drag object, assign pixmap and grab keyboard. The grabbing
// will allow ESC to abort the drag
//
KURL::List uris;
uris.append(KURL(mUrl));
KURLDrag *uriDrag = new KURLDrag( uris, this );
if( uriDrag == 0 ) { return; }
prepPixmap( *uriDrag );
grabKeyboard();
uriDrag->drag();
releaseKeyboard();
}
}
}
void CDragLabel::mouseReleaseEvent( TQMouseEvent * )
{
mDragPending = false;
}
void CDragLabel::setUrl( const TQString &url )
{
mUrl = url;
}
void CDragLabel::setDragMask( const TQPixmap pix )
{
mDragMask = pix;
}
void CDragLabel::prepPixmap( KURLDrag &uriDrag )
{
if( pixmap() == 0 )
{
return;
}
TQString text;
int index = mUrl.tqfindRev( '/', mUrl.length() );
if( index < 0 )
{
text = mUrl;
}
else
{
text = mUrl.right( mUrl.length() - index - 1 );
}
int sep = 2;
TQRect rect = fontMetrics().boundingRect(text);
int w = pixmap()->width() + rect.width() + sep + 2;
int h = fontMetrics().lineSpacing();
if( pixmap()->height() > h ) { h = pixmap()->height(); }
TQBitmap tqmask( w, h, TRUE );
TQPixmap dragPixmap( w, h );
dragPixmap.fill( black );
TQPainter p;
p.begin( &tqmask );
p.setPen( white );
p.drawPixmap( 0, 0, mDragMask );
p.drawText( pixmap()->width()+sep, 0, w-pixmap()->width()+sep,
h, AlignVCenter|AlignLeft, text );
p.end();
p.begin( &dragPixmap );
p.drawPixmap( 0, 0, *pixmap() );
p.end();
dragPixmap.setMask( tqmask );
TQPoint hotspot( pixmap()->width(), pixmap()->height()/2 );
uriDrag.setPixmap( dragPixmap, hotspot );
}
#include "draglabel.moc"