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#include <QtTest/QtTest>

#include <qcoreapplication.h>

#include <qdebug.h>

#include <qabstracttextdocumentlayout.h>

#include <qimage.h>

#include <qtextobject.h>

//TESTED_CLASS=

//TESTED_FILES=

class tst_QAbstractTextDocumentLayout : public QObject

{

Q_OBJECT

public:

    tst_QAbstractTextDocumentLayout();

    virtual ~tst_QAbstractTextDocumentLayout();

private slots:

    void getSetCheck();

    void maximumBlockCount();

};

tst_QAbstractTextDocumentLayout::tst_QAbstractTextDocumentLayout()

{

}

tst_QAbstractTextDocumentLayout::~tst_QAbstractTextDocumentLayout()

{

}

class MyAbstractTextDocumentLayout : public QAbstractTextDocumentLayout

{

    Q_OBJECT

public:

    MyAbstractTextDocumentLayout(QTextDocument *doc)

        : QAbstractTextDocumentLayout(doc)

        , gotFullLayout(false)

        , blockCount(0)

        , changeEvents(0)

    {

    }

    void draw(QPainter *, const PaintContext &) {}

    int hitTest(const QPointF &, Qt::HitTestAccuracy) const { return 0; }

    int pageCount() const { return 0; }

    QSizeF documentSize() const { return QSizeF(); }

    QRectF frameBoundingRect(QTextFrame *) const { return QRectF(); }

    QRectF blockBoundingRect(const QTextBlock &) const { return QRectF(); }

    void documentChanged(int from, int oldLength, int length) {

        ++changeEvents;

        QTextBlock last = document()->lastBlock();

        int lastPos = last.position() + last.length() - 1;

        if (from == 0 && length == lastPos)

            gotFullLayout = true;

    }

    bool gotFullLayout;

    int blockCount;

    int changeEvents;

public slots:

    void blockCountChanged(int bc) { blockCount = bc; }

};

// Testing get/set functions

void tst_QAbstractTextDocumentLayout::getSetCheck()

{

    QTextDocument doc;

    MyAbstractTextDocumentLayout obj1(&doc);

    // QPaintDevice * QAbstractTextDocumentLayout::paintDevice()

    // void QAbstractTextDocumentLayout::setPaintDevice(QPaintDevice *)

    QImage *var1 = new QImage(QSize(10,10), QImage::Format_ARGB32_Premultiplied);

    obj1.setPaintDevice(var1);

    QCOMPARE(static_cast<QPaintDevice *>(var1), obj1.paintDevice());

    obj1.setPaintDevice((QPaintDevice *)0);

    QCOMPARE(static_cast<QPaintDevice *>(0), obj1.paintDevice());

    delete var1;

}

void tst_QAbstractTextDocumentLayout::maximumBlockCount()

{

    QTextDocument doc;

    doc.setMaximumBlockCount(10);

    MyAbstractTextDocumentLayout layout(&doc);

    doc.setDocumentLayout(&layout);

    QObject::connect(&doc, SIGNAL(blockCountChanged(int)), &layout, SLOT(blockCountChanged(int)));

    QTextCursor cursor(&doc);

    for (int i = 0; i < 10; ++i) {

        cursor.insertBlock();

        cursor.insertText("bla");

    }

    QCOMPARE(layout.blockCount, 10);

    layout.gotFullLayout = false;

    layout.changeEvents = 0;

    cursor.insertBlock();

    QCOMPARE(layout.changeEvents, 2);

    cursor.insertText("foo");

    QCOMPARE(layout.changeEvents, 3);

    cursor.insertBlock();

    QCOMPARE(layout.changeEvents, 5);

    cursor.insertText("foo");

    QCOMPARE(layout.changeEvents, 6);

    QVERIFY(!layout.gotFullLayout);

    QCOMPARE(layout.blockCount, 10);

}

QTEST_MAIN(tst_QAbstractTextDocumentLayout)

#include "tst_qabstracttextdocumentlayout.moc"