tests/auto/declarative/qdeclarativevisualdatamodel/tst_qdeclarativevisualdatamodel.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
       
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    20 ** packaging of this file.  Please review the following information to
       
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    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
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    36 **
       
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    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 #include <qtest.h>
       
    42 #include <QtTest/QSignalSpy>
       
    43 #include <QStandardItemModel>
       
    44 #include <QtDeclarative/qdeclarativeengine.h>
       
    45 #include <QtDeclarative/qdeclarativecomponent.h>
       
    46 #include <QtDeclarative/qdeclarativecontext.h>
       
    47 #include <QtDeclarative/qdeclarativeexpression.h>
       
    48 #include <QtDeclarative/qdeclarativeview.h>
       
    49 #include <private/qdeclarativelistview_p.h>
       
    50 #include <private/qdeclarativetext_p.h>
       
    51 #include <private/qdeclarativevisualitemmodel_p.h>
       
    52 #include <private/qdeclarativevaluetype_p.h>
       
    53 #include <math.h>
       
    54 
       
    55 static void initStandardTreeModel(QStandardItemModel *model)
       
    56 {
       
    57     QStandardItem *item;
       
    58     item = new QStandardItem(QLatin1String("Row 1 Item"));
       
    59     model->insertRow(0, item);
       
    60 
       
    61     item = new QStandardItem(QLatin1String("Row 2 Item"));
       
    62     item->setCheckable(true);
       
    63     model->insertRow(1, item);
       
    64 
       
    65     QStandardItem *childItem = new QStandardItem(QLatin1String("Row 2 Child Item"));
       
    66     item->setChild(0, childItem);
       
    67 
       
    68     item = new QStandardItem(QLatin1String("Row 3 Item"));
       
    69     item->setIcon(QIcon());
       
    70     model->insertRow(2, item);
       
    71 }
       
    72 
       
    73 class tst_qdeclarativevisualdatamodel : public QObject
       
    74 {
       
    75     Q_OBJECT
       
    76 public:
       
    77     tst_qdeclarativevisualdatamodel();
       
    78 
       
    79 private slots:
       
    80     void rootIndex();
       
    81     void objectListModel();
       
    82 
       
    83 private:
       
    84     QDeclarativeEngine engine;
       
    85     template<typename T>
       
    86     T *findItem(QGraphicsObject *parent, const QString &objectName, int index);
       
    87 };
       
    88 
       
    89 class DataObject : public QObject
       
    90 {
       
    91     Q_OBJECT
       
    92 
       
    93     Q_PROPERTY(QString name READ name WRITE setName NOTIFY nameChanged)
       
    94     Q_PROPERTY(QString color READ color WRITE setColor NOTIFY colorChanged)
       
    95 
       
    96 public:
       
    97     DataObject(QObject *parent=0) : QObject(parent) {}
       
    98     DataObject(const QString &name, const QString &color, QObject *parent=0)
       
    99         : QObject(parent), m_name(name), m_color(color) { }
       
   100 
       
   101 
       
   102     QString name() const { return m_name; }
       
   103     void setName(const QString &name) {
       
   104         if (name != m_name) {
       
   105             m_name = name;
       
   106             emit nameChanged();
       
   107         }
       
   108     }
       
   109 
       
   110     QString color() const { return m_color; }
       
   111     void setColor(const QString &color) {
       
   112         if (color != m_color) {
       
   113             m_color = color;
       
   114             emit colorChanged();
       
   115         }
       
   116     }
       
   117 
       
   118 signals:
       
   119     void nameChanged();
       
   120     void colorChanged();
       
   121 
       
   122 private:
       
   123     QString m_name;
       
   124     QString m_color;
       
   125 };
       
   126 
       
   127 tst_qdeclarativevisualdatamodel::tst_qdeclarativevisualdatamodel()
       
   128 {
       
   129 }
       
   130 
       
   131 void tst_qdeclarativevisualdatamodel::rootIndex()
       
   132 {
       
   133     QDeclarativeEngine engine;
       
   134     QDeclarativeComponent c(&engine, QUrl::fromLocalFile(SRCDIR "/data/visualdatamodel.qml"));
       
   135 
       
   136     QStandardItemModel model;
       
   137     initStandardTreeModel(&model);
       
   138 
       
   139     engine.rootContext()->setContextProperty("myModel", &model);
       
   140 
       
   141     QDeclarativeVisualDataModel *obj = qobject_cast<QDeclarativeVisualDataModel*>(c.create());
       
   142     QVERIFY(obj != 0);
       
   143 
       
   144     QMetaObject::invokeMethod(obj, "setRoot");
       
   145     QVERIFY(qvariant_cast<QModelIndex>(obj->rootIndex()) == model.index(0,0));
       
   146 
       
   147     QMetaObject::invokeMethod(obj, "setRootToParent");
       
   148     QVERIFY(qvariant_cast<QModelIndex>(obj->rootIndex()) == QModelIndex());
       
   149 
       
   150     delete obj;
       
   151 }
       
   152 
       
   153 void tst_qdeclarativevisualdatamodel::objectListModel()
       
   154 {
       
   155     QDeclarativeView view;
       
   156 
       
   157     QList<QObject*> dataList;
       
   158     dataList.append(new DataObject("Item 1", "red"));
       
   159     dataList.append(new DataObject("Item 2", "green"));
       
   160     dataList.append(new DataObject("Item 3", "blue"));
       
   161     dataList.append(new DataObject("Item 4", "yellow"));
       
   162 
       
   163     QDeclarativeContext *ctxt = view.rootContext();
       
   164     ctxt->setContextProperty("myModel", QVariant::fromValue(dataList));
       
   165 
       
   166     view.setSource(QUrl::fromLocalFile(SRCDIR "/data/objectlist.qml"));
       
   167 
       
   168     QDeclarativeListView *listview = qobject_cast<QDeclarativeListView*>(view.rootObject());
       
   169     QVERIFY(listview != 0);
       
   170 
       
   171     QDeclarativeItem *viewport = listview->viewport();
       
   172     QVERIFY(viewport != 0);
       
   173 
       
   174     QDeclarativeText *name = findItem<QDeclarativeText>(viewport, "name", 0);
       
   175     QCOMPARE(name->text(), QString("Item 1"));
       
   176 
       
   177     dataList[0]->setProperty("name", QLatin1String("Changed"));
       
   178     QCOMPARE(name->text(), QString("Changed"));
       
   179 }
       
   180 
       
   181 template<typename T>
       
   182 T *tst_qdeclarativevisualdatamodel::findItem(QGraphicsObject *parent, const QString &objectName, int index)
       
   183 {
       
   184     const QMetaObject &mo = T::staticMetaObject;
       
   185     //qDebug() << parent->childItems().count() << "children";
       
   186     for (int i = 0; i < parent->childItems().count(); ++i) {
       
   187         QDeclarativeItem *item = qobject_cast<QDeclarativeItem*>(parent->childItems().at(i));
       
   188         if(!item)
       
   189             continue;
       
   190         //qDebug() << "try" << item;
       
   191         if (mo.cast(item) && (objectName.isEmpty() || item->objectName() == objectName)) {
       
   192             if (index != -1) {
       
   193                 QDeclarativeExpression e(qmlContext(item), item, "index");
       
   194                 if (e.evaluate().toInt() == index)
       
   195                     return static_cast<T*>(item);
       
   196             } else {
       
   197                 return static_cast<T*>(item);
       
   198             }
       
   199         }
       
   200         item = findItem<T>(item, objectName, index);
       
   201         if (item)
       
   202         return static_cast<T*>(item);
       
   203     }
       
   204 
       
   205     return 0;
       
   206 }
       
   207 
       
   208 QTEST_MAIN(tst_qdeclarativevisualdatamodel)
       
   209 
       
   210 #include "tst_qdeclarativevisualdatamodel.moc"