diff -r e48454f237ca -r 49c70dcc3f17 ganeswidgets/src/hgtransformedquadrenderer.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ganeswidgets/src/hgtransformedquadrenderer.cpp	Fri May 14 16:57:01 2010 +0300
@@ -0,0 +1,129 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:    
+*
+*/
+
+#include "hgtransformedquadrenderer.h"
+#include "hgquad.h"
+#include "hgtransformedquad.h"
+#include "trace.h"
+#include "hgimage.h"
+
+#include <qvector2d>
+#include <qpolygon>
+#include <qmatrix4x4>
+#include <qpainter>
+
+
+HgTransformedQuadRenderer::HgTransformedQuadRenderer(int maxQuads) : 
+    HgQuadRenderer(maxQuads)
+{
+}
+
+HgTransformedQuadRenderer::~HgTransformedQuadRenderer()
+{
+    qDeleteAll(mTransformedQuads.begin(), mTransformedQuads.end());
+}
+
+void HgTransformedQuadRenderer::init(int maxQuads)
+{
+    for (int i = 0; i < maxQuads; i++)
+    {
+        mTransformedQuads.append(createNativeQuad());
+    }    
+}
+
+HgQuad* HgTransformedQuadRenderer::getQuadAt(const QPointF& point) const
+{
+    QList<HgTransformedQuad*>::const_iterator i = mSortedQuads.begin();
+    while(i != mSortedQuads.end())
+    {
+        HgTransformedQuad* q = (*i);
+        if (q->isPointInside(point))
+        {
+            return q->quad();
+        }
+        i++;
+    }
+    
+    return NULL;
+}
+
+
+void HgTransformedQuadRenderer::transformQuads(const QMatrix4x4& view, const QMatrix4x4& proj, 
+    const QPointF& center, const QSizeF& windowSize)
+{
+    QMatrix4x4 pv = proj * view;
+    
+    mSortedQuads.clear();
+    
+    for (int i = 0; i < mQuads.size(); i++)
+    {
+        HgQuad* q = mQuads[i];
+            
+        HgTransformedQuad* tq = mTransformedQuads[i];
+        
+        if (q->visible())
+        {
+            tq->transformQuad(i, pv, q, mMirroringPlaneY, mTranslation, center, windowSize);   
+            mSortedQuads.append(tq);
+        }
+    }
+        
+    qSort(mSortedQuads.begin(), mSortedQuads.end(), HgTransformedQuad::quadSorter);
+}
+
+bool HgTransformedQuadRenderer::getQuadTranformedPointsByUserData(QPolygonF& points, const QVariant& userData) const
+{    
+    for (int i = 0; i < mSortedQuads.count(); i++)
+    {
+        HgTransformedQuad* quad = mSortedQuads[i];
+        if (quad->quad())
+        {
+            if (quad->quad()->userData() == userData)
+            {
+                quad->getTransformedPoints(points);
+                return true;                
+            }                
+        }
+    }
+    
+    return false;
+}
+
+QList<HgQuad*> HgTransformedQuadRenderer::getVisibleQuads(const QRectF& rect) const
+{
+    // this implementation isn't 100% precise
+    QList<HgQuad*> result;
+    for (int i = 0; i < mSortedQuads.count(); i++) {
+       QPolygonF poly;
+       mSortedQuads[i]->getTransformedPoints(poly);
+       QRectF bounds = poly.boundingRect();       
+       if (bounds.intersects(rect) || rect.contains(bounds)) {
+           result.append(mSortedQuads[i]->quad());
+       }           
+    }
+    
+    return result;    
+}
+
+void HgTransformedQuadRenderer::drawTransformedQuads(QPainter* painter, const QRectF& rect)
+{
+    // draw quads
+    for (int i = 0; i < mSortedQuads.size(); i++)
+    {
+        mSortedQuads[i]->draw(painter, rect);
+    }    
+}