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/* This file is part of Step.
Copyright (C) 2007 Vladimir Kuznetsov <ks.vladimir@gmail.com>
Step 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.
Step 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 Step; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef STEP_SPRINGGRAPHICS_H
#define STEP_SPRINGGRAPHICS_H
#include "worldgraphics.h"
#include <stepcore/spring.h>
class SpringCreator: public AttachableItemCreator
{
public:
SpringCreator(const QString& className, WorldModel* worldModel, WorldScene* worldScene)
: AttachableItemCreator(className, worldModel, worldScene,
WorldScene::SnapRigidBody | WorldScene::SnapParticle |
WorldScene::SnapSetLocalPosition, 0, true) {}
};
class SpringHandlerGraphicsItem: public WorldGraphicsItem {
public:
SpringHandlerGraphicsItem(StepCore::Item* item, WorldModel* worldModel,
QGraphicsItem* parent, int num);
void viewScaleChanged();
void worldDataChanged(bool);
protected:
void mouseSetPos(const QPointF& pos, const QPointF& diff, MovingState movingState);
int _num;
};
class SpringGraphicsItem: public WorldGraphicsItem {
public:
SpringGraphicsItem(StepCore::Item* item, WorldModel* worldModel);
QPainterPath shape() const;
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
void viewScaleChanged();
void stateChanged();
void worldDataChanged(bool);
protected:
static void tryAttach(StepCore::Item* item, WorldScene* worldScene, const QPointF& pos, int num);
void mouseSetPos(const QPointF& pos, const QPointF& diff, MovingState);
StepCore::Spring* spring() const {
return static_cast<StepCore::Spring*>(_item); }
QPainterPath _painterPath;
double _rnorm;
double _rscale;
double _radius;
SpringHandlerGraphicsItem* _handler1;
SpringHandlerGraphicsItem* _handler2;
static const int RADIUS = 6;
friend class SpringCreator;
};
#endif
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