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    41 

    42 

    43 #include <QtTest/QtTest>

    44 

    45 #include <qcoreapplication.h>

    46 #include <qdebug.h>

    47 #include <qscrollarea.h>

    48 #include <qlayout.h>

    49 

    50 //TESTED_CLASS=

    51 //TESTED_FILES=

    52 

    53 class tst_QScrollArea : public QObject

    54 {

    55 Q_OBJECT

    56 

    57 public:

    58     tst_QScrollArea();

    59     virtual ~tst_QScrollArea();

    60 

    61 private slots:

    62     void getSetCheck();

    63     void ensureMicroFocusVisible_Task_167838();

    64     void checkHFW_Task_197736();

    65 };

    66 

    67 tst_QScrollArea::tst_QScrollArea()

    68 {

    69 }

    70 

    71 tst_QScrollArea::~tst_QScrollArea()

    72 {

    73 }

    74 

    75 // Testing get/set functions

    76 void tst_QScrollArea::getSetCheck()

    77 {

    78     QScrollArea obj1;

    79     // QWidget * QScrollArea::widget()

    80     // void QScrollArea::setWidget(QWidget *)

    81     QWidget *var1 = new QWidget();

    82     obj1.setWidget(var1);

    83     QCOMPARE(var1, obj1.widget());

    84     obj1.setWidget((QWidget *)0);

    85     QCOMPARE(var1, obj1.widget()); // Cannot set a 0-widget. Old widget returned

    86     // delete var1; // No delete, since QScrollArea takes ownership

    87 

    88     // bool QScrollArea::widgetResizable()

    89     // void QScrollArea::setWidgetResizable(bool)

    90     obj1.setWidgetResizable(false);

    91     QCOMPARE(false, obj1.widgetResizable());

    92     obj1.setWidgetResizable(true);

    93     QCOMPARE(true, obj1.widgetResizable());

    94 }

    95 

    96 class WidgetWithMicroFocus : public QWidget

    97 {

    98 public:

    99     WidgetWithMicroFocus(QWidget *parent = 0) : QWidget(parent)

   100     {

   101         setBackgroundRole(QPalette::Dark);

   102     }

   103 protected:

   104     QVariant inputMethodQuery(Qt::InputMethodQuery query) const

   105     {

   106         if (query == Qt::ImMicroFocus)

   107             return QRect(width() / 2, height() / 2, 5, 5);

   108         return QWidget::inputMethodQuery(query);

   109     }

   110 //     void paintEvent(QPaintEvent *event)

   111 //     {

   112 //         QPainter painter(this);

   113 //         painter.fillRect(rect(), QBrush(Qt::red));

   114 //     }

   115 };

   116 

   117 void tst_QScrollArea::ensureMicroFocusVisible_Task_167838()

   118 {

   119     QScrollArea scrollArea;

   120     scrollArea.resize(100, 100);

   121     scrollArea.show();

   122     QWidget *parent = new QWidget;

   123     parent->setLayout(new QVBoxLayout);

   124     QWidget *child = new WidgetWithMicroFocus;

   125     parent->layout()->addWidget(child);

   126     parent->resize(300, 300); 

   127     scrollArea.setWidget(parent);

   128     scrollArea.ensureWidgetVisible(child, 10, 10);

   129     QRect microFocus = child->inputMethodQuery(Qt::ImMicroFocus).toRect();

   130     QPoint p = child->mapTo(scrollArea.viewport(), microFocus.topLeft());

   131     microFocus.translate(p - microFocus.topLeft());

   132     QVERIFY(scrollArea.viewport()->rect().contains(microFocus));

   133 }

   134 

   135 class HFWWidget : public QWidget

   136 {

   137     public:

   138         HFWWidget();

   139         int heightForWidth(int w) const;

   140 };

   141 

   142 HFWWidget::HFWWidget()

   143     : QWidget()

   144 {

   145     setMinimumSize(QSize(100,50));

   146     QSizePolicy s = sizePolicy();

   147     s.setHeightForWidth(true);

   148     setSizePolicy(s);

   149 }

   150 

   151 int HFWWidget::heightForWidth(int w) const

   152 {

   153     // Mimic a label - the narrower we are, the taller we have to be

   154     if (w > 0)

   155         return 40000 / w;

   156     else

   157         return 40000;

   158 }

   159 

   160 void tst_QScrollArea::checkHFW_Task_197736()

   161 {

   162     QScrollArea scrollArea;

   163     HFWWidget *w = new HFWWidget;

   164     scrollArea.resize(200,100);

   165     scrollArea.show();

   166     scrollArea.setWidgetResizable(true);

   167     scrollArea.setWidget(w);

   168 

   169     // at 200x100px, we expect HFW to be 200px tall, not 100px

   170     QVERIFY(w->height() >= 200);

   171 

   172     // at 200x300px, we expect HFW to be 300px tall (the heightForWidth is a min, not prescribed)

   173     scrollArea.resize(QSize(200, 300));

   174     QVERIFY(w->height() >= 250); // 50px for a fudge factor (size of frame margins/scrollbars etc)

   175 

   176     // make sure this only happens with widget resizable

   177     scrollArea.setWidgetResizable(false);

   178     scrollArea.resize(QSize(100,100));

   179     w->resize(QSize(200,200));

   180     QVERIFY(w->width() == 200);

   181     QVERIFY(w->height() == 200);

   182 }

   183 

   184 QTEST_MAIN(tst_QScrollArea)

   185 #include "tst_qscrollarea.moc"