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/***************************************************************************
* *
* 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. *
* *
* copyright (C) 2002-2007 *
* Umbrello UML Modeller Authors <uml-devel@uml.sf.net> *
***************************************************************************/
// own header
#include "seqlinewidget.h"
//kde includes
#include <kcursor.h>
#include <kdebug.h>
//app includes
#include "umlview.h"
#include "objectwidget.h"
#include "messagewidget.h"
// class members
int const SeqLineWidget::m_nMouseDownEpsilonX = 20;
SeqLineWidget::SeqLineWidget( UMLView * pView, ObjectWidget * pObject ) : QCanvasLine( pView -> canvas() ) {
m_pView = pView;
m_pObject = pObject;
setPen( QPen( m_pObject->getLineColor(), 0, Qt::DashLine ) );
setZ( 0 );
setVisible( true );
m_DestructionBox.line1 = 0;
m_nLengthY = 250;
setupDestructionBox();
}
SeqLineWidget::~SeqLineWidget() {}
int SeqLineWidget::onWidget( const QPoint & p ) {
int nOnWidget = 0;
QPoint sp = startPoint();
QPoint ep = endPoint();
//see if on widget ( for message creation )
if( sp.x() - m_nMouseDownEpsilonX < p.x()
&& ep.x() + m_nMouseDownEpsilonX > p.x()
&& sp.y() < p.y() && ep.y() + 3 > p.y() )
{
nOnWidget = 1;
}
return nOnWidget;
}
void SeqLineWidget::cleanup() {
cleanupDestructionBox();
}
void SeqLineWidget::setStartPoint( int startX, int startY ) {
int endX = startX;
int endY = startY + m_nLengthY;
QCanvasLine::setPoints( startX, startY, endX, endY );
moveDestructionBox();
}
void SeqLineWidget::cleanupDestructionBox() {
if ( m_DestructionBox.line1 ) {
delete m_DestructionBox.line1;
m_DestructionBox.line1 = 0;
delete m_DestructionBox.line2;
m_DestructionBox.line2 = 0;
}
}
void SeqLineWidget::setupDestructionBox() {
cleanupDestructionBox();
if( !m_pObject->getShowDestruction() ) {
return;
}
QRect rect;
rect.setX( m_pObject->getX() + m_pObject->getWidth() / 2 - 10 );
rect.setY( m_pObject->getY() + m_pObject->getHeight() + m_nLengthY );
rect.setWidth( 14 );
rect.setHeight( 14 );
m_DestructionBox.line1 = new QCanvasLine( m_pView->canvas() );
m_DestructionBox.setLine1Points(rect);
m_DestructionBox.line1->setVisible( true );
m_DestructionBox.line1->setPen( QPen(m_pObject->getLineColor(), 2) );
m_DestructionBox.line1->setZ( 3 );
m_DestructionBox.line2 = new QCanvasLine( m_pView -> canvas() );
m_DestructionBox.setLine2Points(rect);
m_DestructionBox.line2->setVisible( true );
m_DestructionBox.line2->setPen( QPen(m_pObject->getLineColor(), 2) );
m_DestructionBox.line2->setZ( 3 );
}
void SeqLineWidget::moveDestructionBox() {
if( !m_DestructionBox.line1 ) {
return;
}
QRect rect;
rect.setX( m_pObject->getX() + m_pObject->getWidth() / 2 - 7 );
rect.setY( m_pObject->getY() + m_pObject->getHeight() + m_nLengthY - 7 );
rect.setWidth( 14 );
rect.setHeight( 14 );
m_DestructionBox.setLine1Points(rect);
m_DestructionBox.setLine2Points(rect);
}
void SeqLineWidget::setEndOfLine(int yPosition) {
QPoint sp = startPoint();
int newY = yPosition;
m_nLengthY = yPosition - m_pObject->getY() - m_pObject->getHeight();
// normally the managing Objectwidget is responsible for the call of this function
// but to be sure - make a double check _against current position_
if ( m_nLengthY < 0 ) {
m_nLengthY = 0;
newY = m_pObject->getY() + m_pObject->getHeight();
}
setPoints( sp.x(), sp.y(), sp.x(), newY );
moveDestructionBox();
m_pView->resizeCanvasToItems();
}
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