--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/homescreenapp/hsdomainmodel/src/hswidgethostvisual.cpp Fri Jul 23 13:47:57 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);
+}
+