38be0d1383
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290 lines
7.7 KiB
C++
290 lines
7.7 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtTest/QtTest>
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#include <qpicture.h>
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#include <qpainter.h>
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#include <qimage.h>
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#include <qdesktopwidget.h>
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#include <qapplication.h>
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#include <limits.h>
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//TESTED_CLASS=
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//TESTED_FILES=
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class tst_QPicture : public QObject
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{
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Q_OBJECT
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public:
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tst_QPicture();
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private slots:
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void getSetCheck();
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void devType();
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void paintingActive();
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void boundingRect();
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void swap();
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void operator_lt_lt();
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void save_restore();
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void boundaryValues_data();
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void boundaryValues();
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};
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// Testing get/set functions
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void tst_QPicture::getSetCheck()
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{
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QPictureIO obj1;
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// const QPicture & QPictureIO::picture()
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// void QPictureIO::setPicture(const QPicture &)
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// const char * QPictureIO::format()
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// void QPictureIO::setFormat(const char *)
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char *var2 = "PNG";
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obj1.setFormat(var2);
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QCOMPARE(var2, obj1.format());
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obj1.setFormat((char *)0);
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// The format is stored internally in a QString, so return is always a valid char *
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QVERIFY(QString(obj1.format()).isEmpty());
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// const char * QPictureIO::parameters()
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// void QPictureIO::setParameters(const char *)
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char *var3 = "Bogus data";
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obj1.setParameters(var3);
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QCOMPARE(var3, obj1.parameters());
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obj1.setParameters((char *)0);
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// The format is stored internally in a QString, so return is always a valid char *
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QVERIFY(QString(obj1.parameters()).isEmpty());
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}
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tst_QPicture::tst_QPicture()
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{
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}
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void tst_QPicture::devType()
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{
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QPicture p;
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QCOMPARE( p.devType(), (int)QInternal::Picture );
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}
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void tst_QPicture::paintingActive()
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{
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// actually implemented in QPainter but QPicture is a good
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// example of an external paint device
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QPicture p;
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QVERIFY( !p.paintingActive() );
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QPainter pt( &p );
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QVERIFY( p.paintingActive() );
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pt.end();
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QVERIFY( !p.paintingActive() );
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}
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void tst_QPicture::boundingRect()
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{
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QPicture p1;
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// default value
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QVERIFY( !p1.boundingRect().isValid() );
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QRect r1( 20, 30, 5, 15 );
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p1.setBoundingRect( r1 );
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QCOMPARE( p1.boundingRect(), r1 );
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p1.setBoundingRect(QRect());
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QPainter pt( &p1 );
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pt.drawLine( 10, 20, 110, 80 );
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pt.end();
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// assignment and copy constructor
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QRect r2( 10, 20, 100, 60 );
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QCOMPARE( p1.boundingRect(), r2 );
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QPicture p2( p1 );
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QCOMPARE( p1.boundingRect(), r2 );
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QPicture p3;
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p3 = p1;
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QCOMPARE( p1.boundingRect(), r2 );
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{
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QPicture p4;
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QPainter p(&p4);
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p.drawLine(0, 0, 5, 0);
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p.drawLine(0, 0, 0, 5);
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p.end();
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QRect r3(0, 0, 5, 5);
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QCOMPARE(p4.boundingRect(), r3);
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}
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}
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void tst_QPicture::swap()
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{
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QPicture p1, p2;
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QPainter(&p1).drawLine(0, 0, 5, 5);
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QPainter(&p2).drawLine(0, 3, 3, 0);
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QCOMPARE(p1.boundingRect(), QRect(0,0,5,5));
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QCOMPARE(p2.boundingRect(), QRect(0,0,3,3));
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p1.swap(p2);
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QCOMPARE(p1.boundingRect(), QRect(0,0,3,3));
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QCOMPARE(p2.boundingRect(), QRect(0,0,5,5));
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}
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// operator<< and operator>>
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void tst_QPicture::operator_lt_lt()
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{
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// streaming of null pictures
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{
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QPicture pic1, pic2;
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QByteArray ba( 100, 0 );
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QDataStream str1( &ba, QIODevice::WriteOnly );
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str1 << pic1;
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QDataStream str2( &ba, QIODevice::ReadOnly );
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str2 >> pic2;
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QVERIFY( pic2.isNull() );
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}
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// picture with a simple line, checking bitwise equality
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{
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QPicture pic1, pic2;
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QPainter p( &pic1 );
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p.drawLine( 10, 20, 30, 40 );
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p.end();
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QByteArray ba( 10 * pic1.size(), 0 );
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QDataStream str1( &ba, QIODevice::WriteOnly );
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str1 << pic1;
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QDataStream str2( &ba, QIODevice::ReadOnly );
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str2 >> pic2;
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QCOMPARE( pic1.size(), pic2.size() );
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QVERIFY( memcmp( pic1.data(), pic2.data(), pic1.size() ) == 0 );
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}
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}
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static QPointF scalePoint(const QPointF &point, QPaintDevice *sourceDevice, QPaintDevice *destDevice)
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{
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return QPointF(point.x() * qreal(destDevice->logicalDpiX()) / qreal(sourceDevice->logicalDpiX()),
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point.y() * qreal(destDevice->logicalDpiY()) / qreal(sourceDevice->logicalDpiY()));
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}
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static QRectF scaleRect(const QRectF &rect, QPaintDevice *sourceDevice, QPaintDevice *destDevice)
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{
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return QRectF(rect.left() * qreal(destDevice->logicalDpiX()) / qreal(sourceDevice->logicalDpiX()),
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rect.top() * qreal(destDevice->logicalDpiY()) / qreal(sourceDevice->logicalDpiY()),
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rect.width() * qreal(destDevice->logicalDpiX()) / qreal(sourceDevice->logicalDpiX()),
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rect.height() * qreal(destDevice->logicalDpiY()) / qreal(sourceDevice->logicalDpiY()));
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}
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static void paintStuff(QPainter *p)
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{
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QPaintDevice *screenDevice = QApplication::desktop();
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p->drawRect(scaleRect(QRectF(100, 100, 100, 100), screenDevice, p->device()));
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p->save();
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p->translate(scalePoint(QPointF(10, 10), screenDevice, p->device()));
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p->restore();
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p->drawRect(scaleRect(QRectF(100, 100, 100, 100), screenDevice, p->device()));
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}
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/* See task: 41469
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Problem is that the state is not properly restored if the basestate of
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the painter is different when the picture data was created compared to
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the base state of the painter when it is played back.
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*/
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void tst_QPicture::save_restore()
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{
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QPicture pic;
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QPainter p;
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p.begin(&pic);
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paintStuff(&p);
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p.end();
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QPixmap pix1(300, 300);
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pix1.fill(Qt::white);
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p.begin(&pix1);
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p.drawPicture(50, 50, pic);
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p.end();
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QPixmap pix2(300, 300);
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pix2.fill(Qt::white);
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p.begin(&pix2);
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p.translate(50, 50);
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paintStuff(&p);
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p.end();
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QVERIFY( pix1.toImage() == pix2.toImage() );
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}
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void tst_QPicture::boundaryValues_data()
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{
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QTest::addColumn<int>("x");
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QTest::addColumn<int>("y");
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QTest::newRow("max x") << INT_MAX << 50;
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QTest::newRow("max y") << 50 << INT_MAX;
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QTest::newRow("max x and y") << INT_MAX << INT_MAX;
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QTest::newRow("min x") << INT_MIN << 50;
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QTest::newRow("min y") << 50 << INT_MIN;
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QTest::newRow("min x and y") << INT_MIN << INT_MIN;
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QTest::newRow("min x, max y") << INT_MIN << INT_MAX;
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QTest::newRow("max x, min y") << INT_MAX << INT_MIN;
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}
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void tst_QPicture::boundaryValues()
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{
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QPicture picture;
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QPainter painter;
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painter.begin(&picture);
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QFETCH(int, x);
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QFETCH(int, y);
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painter.drawPoint(QPoint(x, y));
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painter.end();
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}
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QTEST_MAIN(tst_QPicture)
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#include "tst_qpicture.moc"
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