You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
130 lines
3.4 KiB
130 lines
3.4 KiB
/**
|
|
* 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 <tqdrawutil.h>
|
|
#include <tqpainter.h>
|
|
#include <tqpixmap.h>
|
|
|
|
#include "scrollbox.h"
|
|
|
|
ScrollBox::ScrollBox( TQWidget* parent, const char* name )
|
|
: TQFrame( parent, name )
|
|
{
|
|
setFrameStyle( Panel | Sunken );
|
|
}
|
|
|
|
void ScrollBox::mousePressEvent( TQMouseEvent* e )
|
|
{
|
|
mouse = e->pos();
|
|
if( e->button() == RightButton )
|
|
emit button3Pressed();
|
|
if( e->button() == MidButton )
|
|
emit button2Pressed();
|
|
}
|
|
|
|
void ScrollBox::mouseMoveEvent( TQMouseEvent* 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 TQScrollView handles
|
|
// this properly
|
|
emit valueChanged( TQPoint( viewpos.x() + dx, viewpos.y() + dy ) );
|
|
emit valueChangedRelative( dx, dy );
|
|
|
|
mouse = e->pos();
|
|
}
|
|
|
|
void ScrollBox::resizeEvent( TQResizeEvent * )
|
|
{
|
|
if ( paletteBackgroundPixmap() )
|
|
setPaletteBackgroundPixmap( paletteBackgroundPixmap()->convertToImage().smoothScale( size() ) );
|
|
}
|
|
|
|
void ScrollBox::drawContents( TQPainter* 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.
|
|
*
|
|
*/
|
|
|
|
TQRect 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 TQSize& s )
|
|
{
|
|
pagesize = s;
|
|
setFixedHeight( s.height() * width() / s.width() );
|
|
repaint();
|
|
}
|
|
|
|
void ScrollBox::setViewSize( const TQSize& s )
|
|
{
|
|
viewsize = s;
|
|
repaint();
|
|
}
|
|
|
|
void ScrollBox::setViewPos( const TQPoint& pos )
|
|
{
|
|
viewpos = pos;
|
|
repaint();
|
|
}
|
|
|
|
void ScrollBox::setThumbnail( TQPixmap 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( TQWidget::WidgetOrigin );
|
|
setPaletteBackgroundPixmap( img.convertToImage().smoothScale( size() ) );
|
|
}
|
|
|
|
void ScrollBox::clear()
|
|
{
|
|
unsetPalette();
|
|
}
|
|
|
|
#include "scrollbox.moc"
|
|
|
|
// vim:sw=4:sts=4:ts=8:noet
|