tests/manual/qgraphicsitemgroup/customitem.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the test suite of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include "customitem.h"
       
    43 
       
    44 #include <QPainter>
       
    45 #include <QStyle>
       
    46 #include <QStyleOption>
       
    47 
       
    48 QList<CustomGroup*> CustomScene::selectedCustomGroups() const
       
    49 {
       
    50     QList<QGraphicsItem*> all = selectedItems();
       
    51     QList<CustomGroup*> groups;
       
    52 
       
    53     foreach (QGraphicsItem *item, all) {
       
    54         CustomGroup* group = dynamic_cast<CustomGroup*>(item);
       
    55         if (group)
       
    56             groups.append(group);
       
    57     }
       
    58 
       
    59     return groups;
       
    60 }
       
    61 
       
    62 QList<CustomItem*> CustomScene::selectedCustomItems() const
       
    63 {
       
    64     QList<QGraphicsItem*> all = selectedItems();
       
    65     QList<CustomItem*> items;
       
    66 
       
    67     foreach (QGraphicsItem *item, all) {
       
    68         CustomItem* citem = dynamic_cast<CustomItem*>(item);
       
    69         if (citem)
       
    70             items.append(citem);
       
    71     }
       
    72 
       
    73     return items;
       
    74 }
       
    75 
       
    76 CustomGroup::CustomGroup() :
       
    77     QGraphicsItemGroup()
       
    78 {
       
    79     setFlag(QGraphicsItem::ItemIsMovable);
       
    80     setFlag(QGraphicsItem::ItemIsSelectable);
       
    81 }
       
    82 
       
    83 void CustomGroup::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
       
    84 {
       
    85     if (option->state & QStyle::State_Selected)
       
    86         painter->setOpacity(1.);
       
    87     else
       
    88         painter->setOpacity(0.2);
       
    89 
       
    90     painter->setPen(QPen(QColor(100, 100, 100), 2, Qt::DashLine));
       
    91     painter->drawRect(boundingRect().adjusted(-2, -2, 2, 2));
       
    92 }
       
    93 
       
    94 QRectF CustomGroup::boundingRect() const
       
    95 {
       
    96     return QGraphicsItemGroup::boundingRect().adjusted(-4, -4, 4 ,4);
       
    97 }
       
    98 
       
    99 CustomItem::CustomItem(qreal x, qreal y, qreal width, qreal height, const QBrush &brush) :
       
   100     QGraphicsRectItem(x, y, width, height)
       
   101 {
       
   102     setFlag(QGraphicsItem::ItemIsMovable);
       
   103     setFlag(QGraphicsItem::ItemIsSelectable);
       
   104     setBrush(brush);
       
   105     setPen(Qt::NoPen);
       
   106     setTransformOriginPoint(boundingRect().center());
       
   107 }