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135 lines
3.5 KiB
135 lines
3.5 KiB
/**
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* Copyright (C) 1997-2002 the KGhostView authors. See file AUTHORS.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <tqdrawutil.h>
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#include <tqpainter.h>
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#include <tqpixmap.h>
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#include "scrollbox.h"
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ScrollBox::ScrollBox( TQWidget* parent, const char* name )
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: TQFrame( parent, name )
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{
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setFrameStyle( Panel | Sunken );
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}
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void ScrollBox::mousePressEvent( TQMouseEvent* e )
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{
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mouse = e->pos();
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if( e->button() == Qt::RightButton )
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emit button3Pressed();
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if( e->button() == Qt::MidButton )
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emit button2Pressed();
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}
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void ScrollBox::mouseMoveEvent( TQMouseEvent* e )
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{
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if( e->state() != Qt::LeftButton )
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return;
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int dx = ( e->pos().x() - mouse.x() ) * pagesize.width() / width();
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int dy = ( e->pos().y() - mouse.y() ) * pagesize.height() / height();
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// Notify the word what the view position has changed
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// The word in turn will notify as that view position has changed
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// Even if coordinates are out of range TQScrollView handles
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// this properly
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emit valueChanged( TQPoint( viewpos.x() + dx, viewpos.y() + dy ) );
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emit valueChangedRelative( dx, dy );
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mouse = e->pos();
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}
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void ScrollBox::resizeEvent( TQResizeEvent * )
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{
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if ( paletteBackgroundPixmap() ) {
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TQPixmap pm;
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pm.convertFromImage(paletteBackgroundPixmap()->convertToImage().smoothScale( size() ));
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setPaletteBackgroundPixmap( pm );
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}
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}
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void ScrollBox::drawContents( TQPainter* paint )
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{
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if ( pagesize.isEmpty() )
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return;
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/* FIXME:
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*
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* The logic below is flawed because the page info given to us
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* contains the borders used for page decoration, while we assume
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* that it means only the actual displayed document.
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*
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*/
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TQRect c( contentsRect() );
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paint -> setPen( TQt::red );
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int len = pagesize.width();
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int x = c.x() + c.width() * viewpos.x() / len;
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int w = c.width() * viewsize.width() / len ;
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if ( w > c.width() ) w = c.width();
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len = pagesize.height();
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int y = c.y() + c.height() * viewpos.y() / len;
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int h = c.height() * viewsize.height() / len;
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if ( h > c.height() ) h = c.height();
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paint->drawRect( x, y, w, h );
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}
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void ScrollBox::setPageSize( const TQSize& s )
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{
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pagesize = s;
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setFixedHeight( s.height() * width() / s.width() );
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repaint();
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}
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void ScrollBox::setViewSize( const TQSize& s )
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{
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viewsize = s;
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repaint();
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}
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void ScrollBox::setViewPos( const TQPoint& pos )
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{
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viewpos = pos;
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repaint();
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}
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void ScrollBox::setThumbnail( TQPixmap img )
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{
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// The line below is needed to work around certain "features" of styles such as liquid
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// see bug:61711 for more info (LPC, 20 Aug '03)
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setBackgroundOrigin( TQWidget::WidgetOrigin );
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TQPixmap pm;
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pm.convertFromImage(img.convertToImage().smoothScale( size() ));
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setPaletteBackgroundPixmap( pm );
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}
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void ScrollBox::clear()
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{
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unsetPalette();
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}
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#include "scrollbox.moc"
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// vim:sw=4:sts=4:ts=8:noet
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