diff -r 2b1b11a301d2 -r 4b195f3bea29 homescreenapp/hsdomainmodel/src/hswidgethostvisual.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/homescreenapp/hsdomainmodel/src/hswidgethostvisual.cpp	Wed Aug 18 09:40:07 2010 +0300
@@ -0,0 +1,263 @@
+/*
+* 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 <QGraphicsLinearLayout>
+#include <QParallelAnimationGroup>
+#include <QPropertyAnimation>
+#include <QGraphicsDropShadowEffect>
+#include <QGraphicsSceneResizeEvent>
+#include <QGesture>
+#include <QGraphicsScene>
+
+
+#include <HbInstantFeedback>
+#include <HbTouchArea>
+
+#include "hswidgethostvisual.h"
+#include "hswidgethost.h"
+#include "hsscene.h"
+#include "hsconfiguration.h"
+#include "hswidgettoucharea.h"
+
+
+/*!
+    \class HsWidgetHostVisual
+    \ingroup group_hsdomainmodel
+    \brief Each widget is controlled by the home screen framework through a widget host.
+*/
+
+/*!
+    Constructs a new widget host with given \a databaseId and
+    \a parent item.
+*/
+HsWidgetHostVisual::HsWidgetHostVisual(QGraphicsItem *parent)
+  : HbWidget(parent),mWidget(0)
+  
+{
+    setFlag(QGraphicsItem::ItemClipsChildrenToShape);
+    setFlag(QGraphicsItem::ItemHasNoContents);
+
+    grabGesture(Qt::TapGesture);
+    grabGesture(Qt::TapAndHoldGesture);
+    grabGesture(Qt::PanGesture);
+    grabGesture(Qt::PinchGesture);
+    grabGesture(Qt::SwipeGesture);
+    grabGesture(Qt::CustomGesture);
+    
+    setupTouchArea();
+    setupEffects();
+    
+    setMinimumSize(HSCONFIGURATION_GET(minimumWidgetSizeInPixels));
+    setMaximumSize(HSCONFIGURATION_GET(maximumWidgetSizeInPixels));
+    
+}
+
+/*!
+    Destructor.
+*/
+HsWidgetHostVisual::~HsWidgetHostVisual()
+{
+}
+
+
+/*!
+    Reimplemented from QGraphicsItem. Returns the shape of the
+    this widget host. The shape is computed based on the contained
+    widget.
+*/
+QPainterPath HsWidgetHostVisual::shape() const
+{
+    QPainterPath path;
+
+    if (mWidget) {
+        QRectF currRect = rect();
+        path = mWidget->shape();
+
+        QRectF pathRect(path.boundingRect());
+
+        if (pathRect.width() > currRect.width()
+            || pathRect.height() > currRect.height()) {
+            QPainterPath newPath(currRect.topLeft());
+            newPath.addRect(currRect);
+            path = path.intersected(newPath);
+        }
+    }
+    return path;
+}
+void HsWidgetHostVisual::setWidget(QObject *widget)
+{
+    mWidget = qobject_cast<QGraphicsWidget *>(widget);
+    if (mWidget) {
+        mWidget->installEventFilter(this);
+        mWidget->setParentItem(this);
+        setNewSize(mWidget->size());
+    }
+}
+
+void HsWidgetHostVisual::setVisualModel(HsWidgetHost *model)
+{
+    mVisualModel = model;
+}
+HsWidgetHost *HsWidgetHostVisual::visualModel() const
+{
+    return mVisualModel;
+}
+/*!
+    Starts the drag effect.
+*/
+void HsWidgetHostVisual::startDragEffect()
+{
+    /* TODO: Uncomment after the Qt bug has been fixed.
+    QGraphicsDropShadowEffect *effect =
+        static_cast<QGraphicsDropShadowEffect *>(graphicsEffect());
+    */
+    HbInstantFeedback::play(HbFeedback::ItemPick);
+
+    setTransformOriginPoint(rect().center());
+
+    QParallelAnimationGroup *animationGroup = new QParallelAnimationGroup();
+
+    QPropertyAnimation *animation = new QPropertyAnimation(this, "scale");
+    animation->setDuration(HSCONFIGURATION_GET(widgetDragEffectDuration));
+    animation->setEndValue(1.1);
+    animationGroup->addAnimation(animation);
+
+    /* TODO: Uncomment after the Qt bug has been fixed.
+    animation = new QPropertyAnimation(effect, "offset");
+    animation->setDuration(200);
+    animation->setEndValue(QPointF(8 ,8));
+    animationGroup->addAnimation(animation);
+    */
+
+    animationGroup->start(QAbstractAnimation::DeleteWhenStopped);
+}
+
+/*!
+    Starts the drop effect.
+*/
+void HsWidgetHostVisual::startDropEffect()
+{
+    /* TODO: Uncomment after the Qt bug has been fixed.
+    QGraphicsDropShadowEffect *effect =
+        static_cast<QGraphicsDropShadowEffect *>(graphicsEffect());
+    */
+    HbInstantFeedback::play(HbFeedback::ItemDrop);
+
+    QParallelAnimationGroup *animationGroup = new QParallelAnimationGroup;
+
+    QPropertyAnimation *animation = new QPropertyAnimation(this, "scale");
+    animation->setDuration(HSCONFIGURATION_GET(widgetDropEffectDuration));
+    animation->setEndValue(1);
+    animationGroup->addAnimation(animation);
+
+    /* TODO: Uncomment after the Qt bug has been fixed.
+    animation = new QPropertyAnimation(effect, "offset");
+    animation->setDuration(200);
+    animation->setEndValue(QPointF(3, 3));
+    animationGroup->addAnimation(animation);
+    */
+
+    animationGroup->start(QAbstractAnimation::DeleteWhenStopped);
+}
+/*!
+    \fn HsWidgetHost::resized()
+    Notifies the home screen framework that this widget
+    host has resized itself.
+*/
+
+/*!
+    Reimplemented from QObject for monitoring changes in 
+    contained widget's size.
+*/
+bool HsWidgetHostVisual::eventFilter(QObject *watched, QEvent *event)
+{
+    if (event->type() == QEvent::GraphicsSceneResize ) {
+        QGraphicsSceneResizeEvent *resizeEvent = 
+            static_cast<QGraphicsSceneResizeEvent *>(event);
+        setNewSize(resizeEvent->newSize());
+        emit resized();
+    }
+    return HbWidget::eventFilter(watched, event);
+}
+
+/*!
+    Reimplemented from HbWidget for pan gesture handling.
+*/
+void HsWidgetHostVisual::gestureEvent(QGestureEvent *event)
+{
+    HsScene *scene = HsScene::instance();    
+    QGesture *gesture = event->gesture(Qt::PanGesture);
+    if (gesture) {
+        switch (gesture->state()) {
+            case Qt::GestureStarted:
+                grabMouse();
+                emit scene->pagePanStarted(event);
+                break;
+            case Qt::GestureUpdated:
+                emit scene->pagePanUpdated(event);
+                break;
+            case Qt::GestureFinished:
+            case Qt::GestureCanceled:
+                ungrabMouse();
+                emit scene->pagePanFinished(event);
+                break;
+            default:
+                break;
+        }
+    }
+}
+
+/*!
+    \fn HsWidgetHostVisual::mousePressEvent(QGraphicsSceneMouseEvent *)
+    Reimplemented from QGraphicsItem for eating all mouse presses.
+*/
+
+/*!
+    Configures the touch are for this widget host.
+*/
+void HsWidgetHostVisual::setupTouchArea()
+{
+    mTouchArea = new HsWidgetTouchArea(this);
+    mTouchArea->setZValue(1);
+}
+
+/*!
+    Configures the effects for this widget host.
+*/
+void HsWidgetHostVisual::setupEffects()
+{
+    /* TODO: Uncomment after the Qt bug has been fixed.
+    QGraphicsDropShadowEffect *effect =
+        new QGraphicsDropShadowEffect(this);
+    effect->setColor(QColor(0, 0, 0, 150));
+    effect->setBlurRadius(5);
+    effect->setOffset(3);
+    setGraphicsEffect(effect);
+    */
+}
+
+
+/*!
+    Resizes this widget host to the given \a size.
+*/
+void HsWidgetHostVisual::setNewSize(const QSizeF &size)
+{
+    mTouchArea->resize(size);
+    resize(size);
+    setPreferredSize(size);
+}
+