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 /* This file is part of the KDE project
 
    Copyright (C) 2006-2008 Thorsten Zachmann <zachmann@kde.org>
    Copyright (C) 2006-2010 Thomas Zander <zander@kde.org>
    Copyright (C) 2009-2010 Jan Hambrecht <jaham@gmx.net>
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library 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
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
 */
 #ifndef KoShapeManager_p_h
 #define KoShapeManager_p_h
 
 #include "KoShapeManager.h"
 #include "KoSelection.h"
 #include "KoPointerEvent.h"
 #include "KoShape.h"
 #include "KoShape_p.h"
 #include "KoCanvasBase.h"
 #include "KoShapeContainer.h"
 #include "KoShapeStrokeModel.h"
 #include "KoShapeGroup.h"
 #include "KoToolProxy.h"
 #include "KoShapeManagerPaintingStrategy.h"
 #include "KoShapeShadow.h"
 #include "KoShapeLayer.h"
 #include "KoFilterEffect.h"
 #include "KoFilterEffectStack.h"
 #include "KoFilterEffectRenderContext.h"
 #include "KoShapeBackground.h"
 #include <KoRTree.h>
 #include "KoClipPath.h"
 #include "KoShapePaintingContext.h"
 
 #include <QPainter>
 #include <QTimer>
 #include <FlakeDebug.h>
 
 class Q_DECL_HIDDEN KoShapeManager::Private
 {
 public:
     Private(KoShapeManager *shapeManager, KoCanvasBase *c)
         : selection(new KoSelection()),
           canvas(c),
           tree(4, 2),
           strategy(new KoShapeManagerPaintingStrategy(shapeManager)),
           q(shapeManager)
     {
     }
 
     ~Private() {
         delete selection;
         delete strategy;
     }
 
     /**
      * Update the tree when there are shapes in m_aggregate4update. This is done so not all
      * updates to the tree are done when they are asked for but when they are needed.
      */
     void updateTree();
 
     /**
      * Recursively paints the given group shape to the specified painter
      * This is needed for filter effects on group shapes where the filter effect
      * applies to all the children of the group shape at once
      */
     void paintGroup(KoShapeGroup *group, QPainter &painter, const KoViewConverter &converter, KoShapePaintingContext &paintContext);
 
     class DetectCollision
     {
     public:
         DetectCollision() {}
         void detect(KoRTree<KoShape *> &tree, KoShape *s, int prevZIndex) {
             foreach(KoShape *shape, tree.intersects(s->boundingRect())) {
                 bool isChild = false;
                 KoShapeContainer *parent = s->parent();
                 while (parent && !isChild) {
                     if (parent == shape)
                         isChild = true;
                     parent = parent->parent();
                 }
                 if (isChild)
                     continue;
                 if (s->zIndex() <= shape->zIndex() && prevZIndex <= shape->zIndex())
                     // Moving a shape will only make it collide with shapes below it.
                     continue;
                 if (shape->collisionDetection() && !shapesWithCollisionDetection.contains(shape))
                     shapesWithCollisionDetection.append(shape);
             }
         }
 
         void fireSignals() {
             foreach(KoShape *shape, shapesWithCollisionDetection)
                 shape->priv()->shapeChanged(KoShape::CollisionDetected);
         }
 
     private:
         QList<KoShape*> shapesWithCollisionDetection;
     };
 
     QList<KoShape *> shapes;
     QList<KoShape *> additionalShapes; // these are shapes that are only handled for updates
     KoSelection *selection;
     KoCanvasBase *canvas;
     KoRTree<KoShape *> tree;
     QSet<KoShape *> aggregate4update;
     QHash<KoShape*, int> shapeIndexesBeforeUpdate;
     KoShapeManagerPaintingStrategy *strategy;
     KoShapeManager *q;
 };
 
 #endif