qt5base-lts/tests/auto/gui/text/qabstracttextdocumentlayout/tst_qabstracttextdocumentlayout.cpp

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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
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** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtTest/QtTest>
#include <qcoreapplication.h>
#include <qdebug.h>
#include <qabstracttextdocumentlayout.h>
#include <qimage.h>
#include <qtextobject.h>
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"