/********************************************************************** ** 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" #include <qpainter.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; }