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/*
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* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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#include "hsdomainmodeldatastructures.h"
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#include "hspagenewwidgetlayout.h"
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#include "hsscene.h"
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#include "hspage.h"
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#include "hsdatabase.h"
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#include "hswidgethost.h"
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#include "hswidgethostvisual.h"
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#include "hswallpaper.h"
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#include "hswidgetpositioningonwidgetadd.h"
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#include "hswidgetpositioningonorientationchange.h"
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#include "hsconfiguration.h"
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#include "hsgui.h"
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/*!
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\class HsPageNewWidgetLayout
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\ingroup group_hsdomainmodel
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\brief Represents a page in the framework.
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HsPage is a parent for a group of widgets. HsPage can have a wallpaper.
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*/
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/*!
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Constructor.
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\a parent Owner.
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*/
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HsPageNewWidgetLayout::HsPageNewWidgetLayout(const QPointF &touchPoint,
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QGraphicsLayoutItem *parent)
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: QGraphicsLayout(parent),
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mTouchPoint(touchPoint)
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// add mWidgetRects
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{
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mSize = HsGui::instance()->layoutRect().size();
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}
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/*!
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Destructor.
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*/
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HsPageNewWidgetLayout::~HsPageNewWidgetLayout()
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{
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}
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/*!
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Returns children count.
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*/
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int HsPageNewWidgetLayout::count() const
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{
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return mNewWidgets.count();
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}
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/*!
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Returns item index of \a i.
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*/
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QGraphicsLayoutItem *HsPageNewWidgetLayout::itemAt(int i) const
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{
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return mNewWidgets.at(i)->visual();
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}
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/*!
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Removes item \a index.
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*/
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void HsPageNewWidgetLayout::removeAt(int index)
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{
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mNewWidgets.removeAt(index);
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}
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/*!
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Size hint.
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*/
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QSizeF HsPageNewWidgetLayout::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
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{
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switch (which) {
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case Qt::MinimumSize:
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case Qt::PreferredSize:
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return mSize;
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case Qt::MaximumSize:
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return mSize;
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default:
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break;
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}
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return constraint;
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}
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/*!
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Recalculates children positions.
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*/
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void HsPageNewWidgetLayout::setGeometry(const QRectF &rect)
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{
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QGraphicsLayout::setGeometry(rect);
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// get rects for new widgets
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QList<QRectF> newRects;
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foreach (HsWidgetHost *newWidget, mNewWidgets) {
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newRects << QRectF(QPointF(), newWidget->visual()->preferredSize());
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// temp fix for double setGeometry call
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QRectF defaultRect = QRectF(0,0,58.625, 58.625);
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if (QRectF(QPointF(), newWidget->visual()->preferredSize()) == defaultRect) {
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return;
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}
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}
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/* if there is touch point defined (widget added from context menu)
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then there is only one widget in the list
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-> set widget center point to this touch point
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*/
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if (mTouchPoint != QPointF() && newRects.count() == 1) {
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QRectF widgetRect = newRects.at(0);
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widgetRect.moveCenter(mTouchPoint);
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widgetRect.moveTopLeft(HsScene::instance()->activePage()->adjustedWidgetPosition(widgetRect));
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mNewWidgets.at(0)->visual()->setGeometry(widgetRect);
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/* we have to save widget presentation data here after drawing
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to get correct position for later use
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*/
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mNewWidgets.at(0)->savePresentation();
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}
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// otherwise calculate widget positions with algorithm
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else {
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// get page rect
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QRectF pageRect = HsScene::instance()->activePage()->contentGeometry();
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// scan existing widgets rects
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QList<HsWidgetHost*> existingWidgets;
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existingWidgets = HsScene::instance()->activePage()->widgets();
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QList<QRectF> existingRects;
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foreach (HsWidgetHost *widget, existingWidgets) {
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if (!mNewWidgets.contains(widget)) {
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existingRects << QRectF(widget->visual()->pos(), widget->visual()->preferredSize());
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}
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}
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// calculate new widget positions with "stuck 'em all"-algorithm
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HsWidgetPositioningOnWidgetAdd *algorithm =
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HsWidgetPositioningOnWidgetAdd::instance();
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HsWidgetPositioningOnWidgetAdd::Result result;
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result = algorithm->convert(pageRect, existingRects, newRects, QPointF());
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if (result.rectOrder != QList<int>()) {
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// set new widgets to screen in sorted order and save presentation for each widget
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for (int i = 0; i < mNewWidgets.count(); i++) {
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int id = result.rectOrder.at(i);
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// take visual
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HsWidgetHostVisual *visual(mNewWidgets.at(id)->visual());
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visual->setGeometry(result.calculatedRects.at(id));
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// update z value
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int zValue = visual->zValue();
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visual->setZValue(zValue - id + i);
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mNewWidgets.at(id)->savePresentation();
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}
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}
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}
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}
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/*!
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Adds item to layout.
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*/
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void HsPageNewWidgetLayout::addItem(HsWidgetHost *item)
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{
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mNewWidgets.append(item);
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}
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