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/**********************************************************************
** Copyright (C) 2000-2002 Trolltech AS. All rights reserved.
**
** This file is part of the Qtopia Environment.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#include "imageedit.h"
ImageEdit::ImageEdit( QWidget *parent, const char *name)
: QScrollView( parent, name, WNorthWestGravity | WResizeNoErase ), buffer()
{
buffer.resize( size() );
buffer.fill( colorGroup().color( QColorGroup::Base ) );
}
ImageEdit::~ImageEdit()
{
}
void ImageEdit::contentsMousePressEvent( QMouseEvent *e )
{
lastPos = e->pos();
}
void ImageEdit::contentsMouseMoveEvent( QMouseEvent *e )
{
QPainter pw( viewport() );
QPainter pb( &buffer );
pb.drawLine( lastPos, e->pos() );
pw.drawLine( contentsToViewport( lastPos ),
contentsToViewport( e->pos() ) );
lastPos = e->pos();
}
void ImageEdit::contentsMouseReleaseEvent( QMouseEvent * )
{
}
void ImageEdit::viewportResizeEvent( QResizeEvent *e )
{
enlargeBuffer(e->size());
}
void ImageEdit::enlargeBuffer( const QSize& sz )
{
QSize osz = buffer.size();
QSize nsz( QMAX( osz.width(), sz.width() ), QMAX( osz.height(), sz.height() ) );
buffer.resize( nsz.width(), nsz.height() );
// clear new area
QPainter p( &buffer );
if ( sz.width() > osz.width() )
p.fillRect( osz.width(), 0, sz.width() - osz.width(), nsz.height(), colorGroup().color( QColorGroup::Base ) );
if ( sz.height() > osz.height() )
p.fillRect( 0, osz.height(), nsz.width(), sz.height() - osz.height(), colorGroup().color( QColorGroup::Base ) );
p.end();
}
void ImageEdit::drawContents( QPainter *p, int cx, int cy, int cw, int ch )
{
p->drawPixmap( cx, cy, buffer, cx, cy, cw, ch );
}
void ImageEdit::setPixmap( const QPixmap &pm )
{
QSize osz = buffer.size();
if ( pm.width() < osz.width() || pm.height() < osz.height() ) {
buffer.fill(white);
enlargeBuffer( pm.size() );
QPainter p(&buffer);
p.drawPixmap(0,0,pm);
} else {
buffer = pm;
}
resizeContents( buffer.width(), buffer.height() );
viewport()->repaint( FALSE );
}
QPixmap ImageEdit::pixmap() const
{
return buffer;
}
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