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/**
* Copyright (C) 1997-2002 the KGhostView authors. See file AUTHORS.
*
* 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 <qdrawutil.h>
#include <qpainter.h>
#include <qpixmap.h>
#include "scrollbox.h"
ScrollBox::ScrollBox( QWidget* parent, const char* name )
: QFrame( parent, name )
{
setFrameStyle( Panel | Sunken );
}
void ScrollBox::mousePressEvent( QMouseEvent* e )
{
mouse = e->pos();
if( e->button() == RightButton )
emit button3Pressed();
if( e->button() == MidButton )
emit button2Pressed();
}
void ScrollBox::mouseMoveEvent( QMouseEvent* e )
{
if( e->state() != LeftButton )
return;
int dx = ( e->pos().x() - mouse.x() ) * pagesize.width() / width();
int dy = ( e->pos().y() - mouse.y() ) * pagesize.height() / height();
// Notify the word what the view position has changed
// The word in turn will notify as that view position has changed
// Even if coordinates are out of range QScrollView handles
// this properly
emit valueChanged( QPoint( viewpos.x() + dx, viewpos.y() + dy ) );
emit valueChangedRelative( dx, dy );
mouse = e->pos();
}
void ScrollBox::resizeEvent( QResizeEvent * )
{
if ( paletteBackgroundPixmap() )
setPaletteBackgroundPixmap( paletteBackgroundPixmap()->convertToImage().smoothScale( size() ) );
}
void ScrollBox::drawContents( QPainter* paint )
{
if ( pagesize.isEmpty() )
return;
/* FIXME:
*
* The logic below is flawed because the page info given to us
* contains the borders used for page decoration, while we assume
* that it means only the actual displayed document.
*
*/
QRect c( contentsRect() );
paint -> setPen( Qt::red );
int len = pagesize.width();
int x = c.x() + c.width() * viewpos.x() / len;
int w = c.width() * viewsize.width() / len ;
if ( w > c.width() ) w = c.width();
len = pagesize.height();
int y = c.y() + c.height() * viewpos.y() / len;
int h = c.height() * viewsize.height() / len;
if ( h > c.height() ) h = c.height();
paint->drawRect( x, y, w, h );
}
void ScrollBox::setPageSize( const QSize& s )
{
pagesize = s;
setFixedHeight( s.height() * width() / s.width() );
repaint();
}
void ScrollBox::setViewSize( const QSize& s )
{
viewsize = s;
repaint();
}
void ScrollBox::setViewPos( const QPoint& pos )
{
viewpos = pos;
repaint();
}
void ScrollBox::setThumbnail( QPixmap img )
{
// The line below is needed to work around certain "features" of styles such as liquid
// see bug:61711 for more info (LPC, 20 Aug '03)
setBackgroundOrigin( QWidget::WidgetOrigin );
setPaletteBackgroundPixmap( img.convertToImage().smoothScale( size() ) );
}
void ScrollBox::clear()
{
unsetPalette();
}
#include "scrollbox.moc"
// vim:sw=4:sts=4:ts=8:noet
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