1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 

    18 #include <HbInstance>

    19 

    20 #include "hsdomainmodeldatastructures.h"

    21 #include "hspagenewwidgetlayout.h"

    22 #include "hsscene.h"

    23 #include "hsdatabase.h"

    24 #include "hswidgethost.h"

    25 #include "hswallpaper.h"

    26 #include "hswidgetpositioningonwidgetadd.h"

    27 #include "hswidgetpositioningonorientationchange.h"

    28 #include "hsconfiguration.h"

    29 

    30 

    31 /*!

    32     \class HsPageNewWidgetLayout

    33     \ingroup group_hsdomainmodel

    34     \brief Represents a page in the framework.

    35     HsPage is a parent for a group of widgets. HsPage can have a wallpaper.

    36 */

    37 

    38 /*!

    39     Constructor.

    40 

    41     \a parent Owner.

    42 */

    43 HsPageNewWidgetLayout::HsPageNewWidgetLayout(const QPointF &touchPoint,

    44                                              QGraphicsLayoutItem *parent)

    45     : QGraphicsLayout(parent),    

    46     mTouchPoint(touchPoint)

    47 {

    48     mSize = HsScene::mainWindow()->layoutRect().size();

    49 }

    50 

    51 /*!

    52     Destructor.

    53 */

    54 HsPageNewWidgetLayout::~HsPageNewWidgetLayout()

    55 {

    56 }

    57 

    58 /*!

    59     Returns children count.

    60 */

    61 int HsPageNewWidgetLayout::count() const

    62 {

    63     return mNewWidgets.count();

    64 }

    65 

    66 /*!

    67     Returns item index of \a i.

    68 */

    69 QGraphicsLayoutItem *HsPageNewWidgetLayout::itemAt(int i) const

    70 {

    71     return mNewWidgets.at(i);

    72 }

    73 

    74 /*!

    75     Removes item \a index.

    76 */

    77 void HsPageNewWidgetLayout::removeAt(int index)

    78 {

    79     mNewWidgets.removeAt(index);

    80 }

    81 

    82 /*!

    83     Size hint.

    84 */

    85 QSizeF HsPageNewWidgetLayout::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const

    86 {

    87      switch (which) {

    88      case Qt::MinimumSize:

    89      case Qt::PreferredSize:

    90          return mSize;

    91      case Qt::MaximumSize:

    92          return mSize;

    93      default:

    94          break;

    95      }

    96      return constraint;

    97 }

    98 

    99 /*!

   100     Recalculates children positions.

   101 */

   102 void HsPageNewWidgetLayout::setGeometry(const QRectF &rect)

   103 {

   104     QGraphicsLayout::setGeometry(rect);

   105    

   106     QList<QRectF> rects;

   107     foreach (HsWidgetHost *newWidget, mNewWidgets) {

   108         rects << QRectF(QPointF(), newWidget->preferredSize());

   109     }

   110 

   111     /* if there is touch point defined (widget added from context menu)

   112        then there is only one widget in the list

   113        -> set widget center point to this touch point

   114     */

   115     if (mTouchPoint != QPointF() && mNewWidgets.count() == 1) {

   116         QRectF pageRect = HsScene::mainWindow()->layoutRect();

   117         qreal widgetX = qBound(qreal(0), mTouchPoint.x() - rects.at(0).width() / 2, pageRect.width() - rects.at(0).width());

   118         qreal widgetY = qBound(qreal(64), mTouchPoint.y() - rects.at(0).height() / 2, pageRect.height() - rects.at(0).height());

   119         mNewWidgets.at(0)->setGeometry(widgetX,

   120                                        widgetY,

   121                                        rects.at(0).width(), 

   122                                        rects.at(0).height());

   123         /* we have to save widget presentation data here after drawing

   124            to get correct position for later use

   125         */

   126         mNewWidgets.at(0)->savePresentation();

   127     }

   128     // otherwise calculate position with algorithm

   129     else {

   130         HsWidgetPositioningOnWidgetAdd *algorithm =

   131             HsWidgetPositioningOnWidgetAdd::instance();

   132         QRectF pageRect = HsScene::mainWindow()->layoutRect();

   133         pageRect.adjust( (qreal)0,(qreal)64,(qreal)0,(qreal)0);

   134         QList<QRectF> calculatedRects =

   135             algorithm->convert(pageRect, rects, QPointF());

   136 

   137         for ( int i=0; i<mNewWidgets.count(); i++) {

   138             mNewWidgets.at(i)->setGeometry(calculatedRects.at(i));

   139             mNewWidgets.at(i)->savePresentation();

   140         }

   141     }

   142 }

   143 

   144 /*!

   145     Adds item to layout.

   146 */

   147 void HsPageNewWidgetLayout::addItem(HsWidgetHost *item)

   148 {

   149     mNewWidgets.append(item);

   150 }