/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
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** This file is part of the test suite of the Qt Toolkit.
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** No Commercial Usage
** This file contains pre-release code and may not be distributed.
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** contained in the Technology Preview License Agreement accompanying
** this package.
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** General Public License version 2.1 as published by the Free Software
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** packaging of this file. Please review the following information to
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**
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** Nokia at qt-info@nokia.com.
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****************************************************************************/
#include <QtTest/QtTest>
#include <qregion.h>
#include <qbitmap.h>
#include <qpainter.h>
#include <qpolygon.h>
#ifdef Q_WS_X11
#include <private/qt_x11_p.h>
#endif
//TESTED_CLASS=
//TESTED_FILES=
class tst_QRegion : public QObject
{
Q_OBJECT
public:
tst_QRegion();
private slots:
void boundingRect();
void rects();
void setRects();
void ellipseRegion();
void polygonRegion();
void bitmapRegion();
void intersected_data();
void intersected();
void emptyPolygonRegion_data();
void emptyPolygonRegion();
void intersects_region_data();
void intersects_region();
void intersects_rect_data();
void intersects_rect();
void contains_point();
void operator_plus_data();
void operator_plus();
void operator_minus_data();
void operator_minus();
void operator_intersect_data();
void operator_intersect();
void operator_xor_data();
void operator_xor();
void numRects_data();
void numRects();
void isEmpty_data();
void isEmpty();
#ifdef Q_OS_WIN
void handle();
#endif
#if defined(Q_WS_X11) && defined(QT_BUILD_INTERNAL)
void clipRectangles();
#endif
void regionFromPath();
void regionToPath_data();
void regionToPath();
};
Q_DECLARE_METATYPE(QPolygon)
Q_DECLARE_METATYPE(QVector<QRect>)
Q_DECLARE_METATYPE(QRegion)
tst_QRegion::tst_QRegion()
{
}
void tst_QRegion::boundingRect()
{
{
QRect rect;
QRegion region( rect );
QCOMPARE( region.boundingRect(), rect );
}
{
QRect rect( 10, -20, 30, 40 );
QRegion region( rect );
QCOMPARE( region.boundingRect(), rect );
}
{
QRect rect(15,25,10,10);
QRegion region( rect );
QCOMPARE( region.boundingRect(), rect );
}
}
void tst_QRegion::rects()
{
{
QRect rect;
QRegion region( rect );
QVERIFY( region.isEmpty() );
QVERIFY( region.rects().isEmpty() );
}
{
QRect rect( 10, -20, 30, 40 );
QRegion region( rect );
QCOMPARE( region.rects().count(), 1 );
QCOMPARE( region.rects()[0], rect );
}
{
QRect r( QPoint(10, 10), QPoint(40, 40) );
QRegion region( r );
QVERIFY( region.contains( QPoint(10,10) ) );
QVERIFY( region.contains( QPoint(20,40) ) );
QVERIFY( region.contains( QPoint(40,20) ) );
QVERIFY( !region.contains( QPoint(20,41) ) );
QVERIFY( !region.contains( QPoint(41,20) ) );
}
{
QRect r( 10, 10, 30, 30 );
QRegion region( r );
QVERIFY( region.contains( QPoint(10,10) ) );
QVERIFY( region.contains( QPoint(20,39) ) );
QVERIFY( region.contains( QPoint(39,20) ) );
QVERIFY( !region.contains( QPoint(20,40) ) );
QVERIFY( !region.contains( QPoint(40,20) ) );
}
}
void tst_QRegion::setRects()
{
{
QRegion region;
region.setRects( 0, 0 );
QVERIFY( region.rects().isEmpty() );
}
{
QRegion region;
QRect rect;
region.setRects( &rect, 0 );
QVERIFY(region.isEmpty());
QVERIFY(region == QRegion());
QVERIFY(!region.boundingRect().isValid());
QVERIFY(region.rects().isEmpty());
}
{
QRegion region;
QRect rect;
region.setRects( &rect, 1 );
QVERIFY( !region.boundingRect().isValid() );
QVERIFY( region.rects().isEmpty() );
}
{
QRegion region;
QRect rect( 10, -20, 30, 40 );
region.setRects( &rect, 1 );
QCOMPARE( region.rects().count(), 1 );
QCOMPARE( region.rects()[0], rect );
}
}
void tst_QRegion::ellipseRegion()
{
QRegion region(0, 0, 100, 100, QRegion::Ellipse);
// These should not be inside the circe
QVERIFY(!region.contains(QPoint(13, 13)));
QVERIFY(!region.contains(QPoint(13, 86)));
QVERIFY(!region.contains(QPoint(86, 13)));
QVERIFY(!region.contains(QPoint(86, 86)));
// These should be inside
QVERIFY(region.contains(QPoint(16, 16)));
QVERIFY(region.contains(QPoint(16, 83)));
QVERIFY(region.contains(QPoint(83, 16)));
QVERIFY(region.contains(QPoint(83, 83)));
// ..a..
// .. ..
// . .
// . .
// b c
// . .
// . .
// .. ..
// ..d..
QVERIFY(region.contains(QPoint(50, 0))); // Mid-top (a)
QVERIFY(region.contains(QPoint(0, 50))); // Mid-left (b)
QVERIFY(region.contains(QPoint(99, 50))); // Mid-right (c)
QVERIFY(region.contains(QPoint(50, 99))); // Mid-bottom (d)
QRect bounds = region.boundingRect();
QCOMPARE(bounds.x(), 0);
QCOMPARE(bounds.y(), 0);
QCOMPARE(bounds.width(), 100);
QCOMPARE(bounds.height(), 100);
}
void tst_QRegion::polygonRegion()
{
QPolygon pa;
{
QRegion region ( pa );
QVERIFY( region.isEmpty() );
}
{
pa.setPoints( 8, 10, 10, // a____________b
40, 10, // | |
40, 20, // |___ ___|
30, 20, // | |
30, 40, // | |
20, 40, // | |
20, 20, // |____c
10, 20 );
QRegion region ( pa );
QVERIFY( !region.isEmpty() );
// These should not be inside the circle
QVERIFY( !region.contains( QPoint( 9, 9 ) ) );
QVERIFY( !region.contains( QPoint( 30, 41 ) ) );
QVERIFY( !region.contains( QPoint( 41, 10 ) ) );
QVERIFY( !region.contains( QPoint( 31, 21 ) ) );
// These should be inside
QVERIFY( region.contains( QPoint( 10, 10 ) ) ); // Upper-left (a)
}
}
void tst_QRegion::emptyPolygonRegion_data()
{
QTest::addColumn<QPolygon>("pa");
QTest::addColumn<bool>("isEmpty");
QTest::addColumn<int>("numRects");
QTest::addColumn<QVector<QRect> >("rects");
QPolygon pa;
QTest::newRow("no points") << pa << true << 0 << QVector<QRect>();
pa = QPolygon() << QPoint(10,10);
QTest::newRow("one point") << pa << true << 0 << QVector<QRect>();
pa = QPolygon() << QPoint(10,10) << QPoint(10,20);
QTest::newRow("two points, horizontal") << pa << true << 0 << QVector<QRect>();
pa = QPolygon() << QPoint(10,10) << QPoint(20,10);
QTest::newRow("two points, vertical") << pa << true << 0 << QVector<QRect>();
pa = QPolygon() << QPoint(10,10) << QPoint(20,20);
QTest::newRow("two points, diagonal") << pa << true << 0 << QVector<QRect>();
pa = QPolygon() << QPoint(10,10) << QPoint(15,15) << QPoint(10,15) << QPoint(10, 10) ;
QVector<QRect> v;
v << QRect(10,11,1, 1) << QRect(10,12,2,1) << QRect(10,13,3,1) << QRect(10,14,4,1);
QTest::newRow("triangle") << pa << false << 4 << v;
v.clear();
v << QRect(10,10,10,10);
QTest::newRow("rectangle") << QPolygon(QRect(10,10,10,10)) << false << 1 << v;
}
void tst_QRegion::emptyPolygonRegion()
{
QFETCH(QPolygon, pa);
QRegion r(pa);
QTEST(r.isEmpty(), "isEmpty");
QTEST(r.rects().count(), "numRects");
QTEST(r.rects(), "rects");
}
static const char *circle_xpm[] = {
"20 20 2 1",
" c #FFFFFF",
". c #000000",
" ...... ",
" .......... ",
" .............. ",
" ................ ",
" ................ ",
" .................. ",
" .................. ",
"....................",
"....................",
"....................",
"....................",
"....................",
"....................",
" .................. ",
" .................. ",
" ................ ",
" ................ ",
" .............. ",
" .......... ",
" ...... "
};
void tst_QRegion::bitmapRegion()
{
QBitmap circle;
{
QRegion region( circle );
QVERIFY( region.isEmpty() );
}
{
circle = QPixmap( circle_xpm );
QRegion region( circle );
//// These should not be inside the circe
QVERIFY( !region.contains( QPoint( 2, 2 ) ) );
QVERIFY( !region.contains( QPoint( 2, 17 ) ) );
QVERIFY( !region.contains( QPoint( 17, 2 ) ) );
QVERIFY( !region.contains( QPoint( 17, 17 ) ) );
//// These should be inside
QVERIFY( region.contains( QPoint( 3, 3 ) ) );
QVERIFY( region.contains( QPoint( 3, 16 ) ) );
QVERIFY( region.contains( QPoint( 16, 3 ) ) );
QVERIFY( region.contains( QPoint( 16, 16 ) ) );
QVERIFY( region.contains( QPoint( 0, 10 ) ) ); // Mid-left
QVERIFY( region.contains( QPoint( 10, 0 ) ) ); // Mid-top
QVERIFY( region.contains( QPoint( 19, 10 ) ) ); // Mid-right
QVERIFY( region.contains( QPoint( 10, 19 ) ) ); // Mid-bottom
}
}
void tst_QRegion::intersected_data()
{
QTest::addColumn<QRegion>("r1");
QTest::addColumn<QRegion>("r2");
QTest::addColumn<bool>("intersects");
// QTest::addColumn<QRegion>("intersected");
QPolygon ps1(8);
QPolygon ps2(8);
ps1.putPoints(0,8, 20,20, 50,20, 50,100, 70,100, 70,20, 120,20, 120,200, 20, 200);
ps2.putPoints(0,8, 100,150, 140,150, 140,160, 160,160, 160,150, 200,150, 200,180, 100,180);
QTest::newRow("task30716") << QRegion(ps1) << QRegion(ps2) << true;
}
void tst_QRegion::intersected()
{
QFETCH(QRegion, r1);
QFETCH(QRegion, r2);
QFETCH(bool, intersects);
QRegion interReg = r1.intersected(r2);
QVERIFY(interReg.isEmpty() != intersects);
// Need a way to test the intersected QRegion is right
}
void tst_QRegion::intersects_region_data()
{
QTest::addColumn<QRegion>("r1");
QTest::addColumn<QRegion>("r2");
QTest::addColumn<bool>("intersects");
QTest::newRow("rect overlap rect") << QRegion(100, 100, 200, 200)
<< QRegion(200, 200, 200, 200)
<< true;
QTest::newRow("rect not overlap rect") << QRegion(100, 100, 200, 200)
<< QRegion(400, 400, 200, 200)
<< false;
QTest::newRow("ellipse overlap ellipse") << QRegion(100, 100, 200, 200, QRegion::Ellipse)
<< QRegion(200, 200, 200, 200, QRegion::Ellipse)
<< true;
QTest::newRow("ellipse not overlap ellipse") << QRegion(100, 100, 200, 200, QRegion::Ellipse)
<< QRegion(400, 400, 200, 200, QRegion::Ellipse)
<< false;
}
void tst_QRegion::intersects_region()
{
QFETCH(QRegion, r1);
QFETCH(QRegion, r2);
QFETCH(bool, intersects);
QCOMPARE(r1.intersects(r2), intersects);
}
void tst_QRegion::intersects_rect_data()
{
QTest::addColumn<QRegion>("region");
QTest::addColumn<QRect>("rect");
QTest::addColumn<bool>("intersects");
QTest::newRow("rect overlap rect") << QRegion(100, 100, 200, 200)
<< QRect(200, 200, 200, 200)
<< true;
QTest::newRow("rect not overlap rect") << QRegion(100, 100, 200, 200)
<< QRect(400, 400, 200, 200)
<< false;
QTest::newRow("ellipse overlap rect") << QRegion(100, 100, 200, 200, QRegion::Ellipse)
<< QRect(200, 200, 200, 200)
<< true;
QTest::newRow("ellipse not overlap rect") << QRegion(100, 100, 200, 200, QRegion::Ellipse)
<< QRect(400, 400, 200, 200)
<< false;
}
void tst_QRegion::intersects_rect()
{
QFETCH(QRegion, region);
QFETCH(QRect, rect);
QFETCH(bool, intersects);
QCOMPARE(region.intersects(rect), intersects);
}
void tst_QRegion::contains_point()
{
QCOMPARE(QRegion().contains(QPoint(1,1)),false);
QCOMPARE(QRegion(0,0,2,2).contains(QPoint(1,1)),true);
}
void tst_QRegion::operator_plus_data()
{
QTest::addColumn<QRegion>("r1");
QTest::addColumn<QRegion>("r2");
QTest::addColumn<QRegion>("expected");
QTest::newRow("empty 0") << QRegion() << QRegion() << QRegion();
QTest::newRow("empty 1") << QRegion() << QRegion(QRect(10, 10, 10, 10))
<< QRegion(QRect(10, 10, 10, 10));
QTest::newRow("empty 2") << QRegion(QRect(10, 10, 10, 10)) << QRegion()
<< QRegion(QRect(10, 10, 10, 10));
QRegion expected;
QVector<QRect> rects;
rects << QRect(10, 10, 10, 10) << QRect(22, 10, 10, 10);
expected.setRects(rects.constData(), rects.size());
QTest::newRow("non overlapping") << QRegion(10, 10, 10, 10)
<< QRegion(22, 10, 10, 10)
<< expected;
rects.clear();
rects << QRect(50, 0, 50, 2);
expected.setRects(rects.constData(), rects.size());
QTest::newRow("adjacent y-rects") << QRegion(50, 0, 50, 1)
<< QRegion(50, 1, 50, 1)
<< expected;
rects.clear();
rects << QRect(50, 0, 2, 1);
expected.setRects(rects.constData(), rects.size());
QTest::newRow("adjacent x-rects") << QRegion(50, 0, 1, 1)
<< QRegion(51, 0, 1, 1)
<< expected;
rects.clear();
rects << QRect(10, 10, 10, 10) << QRect(10, 20, 5, 10);
QRegion r1;
r1.setRects(rects.constData(), rects.size());
QTest::newRow("double merge") << r1 << QRegion(15, 20, 5, 10)
<< QRegion(10, 10, 10, 20);
rects.clear();
rects << QRect(15, 10, 5, 10) << QRect(10, 20, 10, 10);
r1.setRects(rects.constData(), rects.size());
QTest::newRow("double merge 2") << r1 << QRegion(10, 10, 5, 10)
<< QRegion(10, 10, 10, 20);
QTest::newRow("overlapping x") << QRegion(10, 10, 10, 10)
<< QRegion(15, 10, 10, 10)
<< QRegion(10, 10, 15, 10);
QTest::newRow("overlapping y") << QRegion(10, 10, 10, 10)
<< QRegion(10, 15, 10, 10)
<< QRegion(10, 10, 10, 15);
rects.clear();
rects << QRect(10, 10, 10, 10) << QRect(10, 20, 5, 10);
r1.setRects(rects.constData(), rects.size());
rects.clear();
rects << QRect(15, 20, 5, 10) << QRect(10, 30, 10, 10);
QRegion r2;
r2.setRects(rects.constData(), rects.size());
QTest::newRow("triple merge") << r1 << r2
<< QRegion(10, 10, 10, 30);
rects.clear();
rects << QRect(10, 10, 4, 10) << QRect(15, 10, 10, 10);
r1.setRects(rects.constData(), rects.size());
rects.clear();
rects << QRect(15, 20, 10, 10);
r2.setRects(rects.constData(), rects.size());
rects.clear();
rects << QRect(10, 10, 4, 10) << QRect(15, 10, 10, 10)
<< QRect(15, 20, 10, 10);
expected.setRects(rects.constData(), rects.size());
QTest::newRow("don't merge y") << r1 << r2 << expected;
QTest::newRow("equal 1") << QRegion(10, 10, 10, 10)
<< QRegion(10, 10, 10, 10)
<< QRegion(10, 10, 10, 10);
QTest::newRow("equal 2") << expected << expected << expected;
}
void tst_QRegion::operator_plus()
{
QFETCH(QRegion, r1);
QFETCH(QRegion, r2);
QFETCH(QRegion, expected);
if (r1 + r2 != expected) {
qDebug() << "r1 + r2" << (r1 + r2);
qDebug() << "expected" << expected;
}
QCOMPARE(r1 + r2, expected);
if (r2.numRects() == 1) {
if (r1 + r2.boundingRect() != expected) {
qDebug() << "r1 + QRect(r2)" << (r1 + r2.boundingRect());
qDebug() << "expected" << expected;
}
QCOMPARE(r1 + r2.boundingRect(), expected);
}
if (r2 + r1 != expected) {
qDebug() << "r2 + r1" << (r2 + r1);
qDebug() << "expected" << expected;
}
QCOMPARE(r2 + r1, expected);
if (r1.numRects() == 1) {
if (r1 + r2.boundingRect() != expected) {
qDebug() << "r2 + QRect(r1)" << (r2 + r1.boundingRect());
qDebug() << "expected" << expected;
}
QCOMPARE(r2 + r1.boundingRect(), expected);
}
QRegion result1 = r1;
result1 += r2;
if (result1 != expected) {
qDebug() << "r1 += r2" << result1;
qDebug() << "expected" << expected;
}
QCOMPARE(result1, expected);
if (r2.numRects() == 1) {
result1 = r1;
result1 += r2.boundingRect();
if (result1 != expected) {
qDebug() << "r1 += QRect(r2)" << result1;
qDebug() << "expected" << expected;
}
QCOMPARE(result1, expected);
}
QRegion result2 = r2;
result2 += r1;
if (result2 != expected) {
qDebug() << "r2 += r1" << result2;
qDebug() << "expected" << expected;
}
QCOMPARE(result2, expected);
if (r1.numRects() == 1) {
result2 = r2;
result2 += r1.boundingRect();
if (result2 != expected) {
qDebug() << "r2 += QRect(r1)" << result2;
qDebug() << "expected" << expected;
}
QCOMPARE(result2, expected);
}
}
void tst_QRegion::operator_minus_data()
{
QTest::addColumn<QRegion>("dest");
QTest::addColumn<QRegion>("subtract");
QTest::addColumn<QRegion>("expected");
QTest::newRow("empty 0") << QRegion() << QRegion() << QRegion();
QTest::newRow("empty 1") << QRegion() << QRegion(QRect(10, 10, 10, 10))
<< QRegion();
QTest::newRow("empty 2") << QRegion(QRect(10, 10, 10, 10)) << QRegion()
<< QRegion(QRect(10, 10, 10, 10));
QRegion dest;
QVector<QRect> rects;
rects << QRect(10, 10, 10, 10) << QRect(22, 10, 10, 10);
dest.setRects(rects.constData(), rects.size());
QTest::newRow("simple 1") << dest
<< QRegion(22, 10, 10, 10)
<< QRegion(10, 10, 10, 10);
QTest::newRow("simple 2") << dest
<< QRegion(10, 10, 10, 10)
<< QRegion(22, 10, 10, 10);
rects.clear();
rects << QRect(0, 0, 10, 10) << QRect(15, 0, 10, 10);
dest.setRects(rects.constData(), rects.size());
QRegion minus;
rects.clear();
rects << QRect(0, 0, 12, 12) << QRect(15, 0, 12, 12);
minus.setRects(rects.constData(), rects.size());
QTest::newRow("empty 3") << dest << minus << QRegion();
}
void tst_QRegion::operator_minus()
{
QFETCH(QRegion, dest);
QFETCH(QRegion, subtract);
QFETCH(QRegion, expected);
if (dest - subtract != expected) {
qDebug() << "dest - subtract" << (dest - subtract);
qDebug() << "expected" << expected;
};
QCOMPARE(dest - subtract, expected);
dest -= subtract;
if (dest != expected) {
qDebug() << "dest" << dest;
qDebug() << "expected" << expected;
};
QCOMPARE(dest, expected);
}
void tst_QRegion::operator_intersect_data()
{
QTest::addColumn<QRegion>("r1");
QTest::addColumn<QRegion>("r2");
QTest::addColumn<QRegion>("expected");
QTest::newRow("empty 0") << QRegion() << QRegion() << QRegion();
QTest::newRow("empty 1") << QRegion() << QRegion(QRect(10, 10, 10, 10))
<< QRegion();
QTest::newRow("empty 2") << QRegion(QRect(10, 10, 10, 10)) << QRegion()
<< QRegion();
QRegion dest;
QVector<QRect> rects;
rects << QRect(10, 10, 10, 10) << QRect(22, 10, 10, 10);
dest.setRects(rects.constData(), rects.size());
QTest::newRow("simple 1") << dest
<< QRegion(22, 10, 10, 10)
<< QRegion(22, 10, 10, 10);
QTest::newRow("simple 2") << dest
<< QRegion(10, 10, 10, 10)
<< QRegion(10, 10, 10, 10);
rects.clear();
rects << QRect(10, 10, 10, 10) << QRect(10, 20, 15, 10);
dest.setRects(rects.constData(), rects.size());
QTest::newRow("merge 1") << dest
<< QRegion(10, 10, 10, 20)
<< QRegion(10, 10, 10, 20);
rects.clear();
rects << QRect(11, 11, 218, 117) << QRect(11, 128, 218, 27)
<< QRect(264, 128, 122, 27) << QRect(11, 155, 218, 43)
<< QRect(11, 198, 218, 27) << QRect(264, 198, 122, 27)
<< QRect(11, 225, 218, 221);
dest.setRects(rects.constData(), rects.size());
QTest::newRow("merge 2") << dest << QRegion(11, 11, 218, 458)
<< QRegion(11, 11, 218, 435);
rects.clear();
rects << QRect(0, 0, 10, 10) << QRect(20, 0, 10, 10);
dest.setRects(rects.constData(), rects.size());
QTest::newRow("empty 3") << dest << QRegion(11, 0, 5, 5) << QRegion();
QTest::newRow("extents check") << dest << QRegion(0, 0, 15, 15)
<< QRegion(0, 0, 10, 10);
rects.clear();
rects << QRect(10, 10, 10, 10) << QRect(10, 20, 10, 10)
<< QRect(30, 20, 10, 10) << QRect(10, 30, 10, 10);
dest.setRects(rects.constData(), rects.size());
rects.clear();
rects << QRect(10, 10, 10, 10) << QRect(10, 20, 10, 10)
<< QRect(30, 20, 10, 10);
QRegion expected;
expected.setRects(rects.constData(), rects.size());
QTest::newRow("dont merge") << dest << QRegion(0, 0, 100, 30)
<< expected;
}
void tst_QRegion::operator_intersect()
{
QFETCH(QRegion, r1);
QFETCH(QRegion, r2);
QFETCH(QRegion, expected);
if ((r1 & r2) != expected) {
qDebug() << "r1 & r2" << (r1 & r2);
qDebug() << "expected" << expected;
}
QCOMPARE(r1 & r2, expected);
if ((r2 & r1) != expected) {
qDebug() << "r2 & r1" << (r2 & r1);
qDebug() << "expected" << expected;
}
QCOMPARE(r2 & r1, expected);
r1 &= r2;
QCOMPARE(r1, expected);
}
void tst_QRegion::operator_xor_data()
{
QTest::addColumn<QRegion>("dest");
QTest::addColumn<QRegion>("arg");
QTest::addColumn<QRegion>("expected");
QTest::newRow("empty 0") << QRegion() << QRegion() << QRegion();
QTest::newRow("empty 1") << QRegion() << QRegion(QRect(10, 10, 10, 10))
<< QRegion(QRect(10, 10, 10, 10));
QTest::newRow("empty 2") << QRegion(QRect(10, 10, 10, 10)) << QRegion()
<< QRegion(QRect(10, 10, 10, 10));
QRegion dest;
QVector<QRect> rects;
rects << QRect(10, 10, 10, 10) << QRect(22, 10, 10, 10);
dest.setRects(rects.constData(), rects.size());
QTest::newRow("simple 1") << dest
<< QRegion(22, 10, 10, 10)
<< QRegion(10, 10, 10, 10);
QTest::newRow("simple 2") << dest
<< QRegion(10, 10, 10, 10)
<< QRegion(22, 10, 10, 10);
QTest::newRow("simple 3") << dest << dest << QRegion();
QTest::newRow("simple 4") << QRegion(10, 10, 10, 10)
<< QRegion(10, 10, 5, 10)
<< QRegion(15, 10, 5, 10);
QTest::newRow("simple 5") << QRegion(10, 10, 10, 10)
<< QRegion(10, 10, 10, 5)
<< QRegion(10, 15, 10, 5);
const QRegion rgnA(0, 0, 100, 100);
const QRegion rgnB(0, 0, 10, 10);
QTest::newRow("simple 6") << rgnA
<< rgnA - rgnB
<< rgnB;
QTest::newRow("simple 7") << rgnB
<< rgnA
<< rgnA - rgnB;
}
void tst_QRegion::operator_xor()
{
QFETCH(QRegion, dest);
QFETCH(QRegion, arg);
QFETCH(QRegion, expected);
QCOMPARE(dest ^ arg, expected);
QCOMPARE(dest.xored(arg), expected);
dest ^= arg;
QCOMPARE(dest, expected);
}
void tst_QRegion::numRects_data()
{
QTest::addColumn<QRegion>("region");
QTest::addColumn<int>("expected");
QTest::newRow("empty") << QRegion() << 0;
QTest::newRow("rect") << QRegion(10, 10, 10, 10) << 1;
QRegion dest;
QVector<QRect> rects;
rects << QRect(10, 10, 10, 10) << QRect(22, 10, 10, 10);
dest.setRects(rects.constData(), rects.size());
QTest::newRow("2 rects") << dest << rects.size();
}
void tst_QRegion::numRects()
{
QFETCH(QRegion, region);
QFETCH(int, expected);
QCOMPARE(region.numRects(), expected);
}
void tst_QRegion::isEmpty_data()
{
QTest::addColumn<QRegion>("region");
QTest::newRow("QRegion") << QRegion();
QVector<QRect> rects;
rects << QRect(0, 0, 10, 10) << QRect(15, 0, 10, 10);
QRegion r1;
r1.setRects(rects.constData(), rects.size());
QRegion r2;
rects.clear();
rects << QRect(0, 0, 12, 12) << QRect(15, 0, 12, 12);
r2.setRects(rects.constData(), rects.size());
QTest::newRow("minus") << (r1 - r2);
}
void tst_QRegion::isEmpty()
{
QFETCH(QRegion, region);
QVERIFY(region.isEmpty());
QCOMPARE(region, QRegion());
QCOMPARE(region.numRects(), 0);
QCOMPARE(region.boundingRect(), QRect());
QVERIFY(region.rects().isEmpty());
}
#ifdef Q_OS_WIN
void tst_QRegion::handle()
{
QRegion r;
HRGN hrgn = r.handle();
QRegion r2(QRect(0,0,10,10));
hrgn = r2.handle();
}
#endif
#if defined(Q_WS_X11) && defined(QT_BUILD_INTERNAL)
void tst_QRegion::clipRectangles()
{
QRegion region(30, 30, 30, 30);
int num = 0;
qt_getClipRects(region, num);
QCOMPARE(num, 1);
region += QRegion(10, 10, 10, 10);
XRectangle *rects2 = static_cast<XRectangle *>(qt_getClipRects(region, num));
QCOMPARE(num, 2);
// Here's the important part (Y-sorted):
QCOMPARE(int(rects2[0].y), 10);
QCOMPARE(int(rects2[1].y), 30);
}
#endif
void tst_QRegion::regionFromPath()
{
{
QPainterPath path;
path.addRect(0, 0, 10, 10);
path.addRect(0, 100, 100, 1000);
QRegion rgn(path.toFillPolygon().toPolygon());
QCOMPARE(rgn.rects().size(), 2);
QCOMPARE(rgn.rects().at(0), QRect(0, 0, 10, 10));
QCOMPARE(rgn.rects().at(1), QRect(0, 100, 100, 1000));
QCOMPARE(rgn.boundingRect(), QRect(0, 0, 100, 1100));
}
{
QPainterPath path;
path.addRect(0, 0, 100, 100);
path.addRect(10, 10, 80, 80);
QRegion rgn(path.toFillPolygon().toPolygon());
QCOMPARE(rgn.rects().size(), 4);
QCOMPARE(rgn.rects().at(0), QRect(0, 0, 100, 10));
QCOMPARE(rgn.rects().at(1), QRect(0, 10, 10, 80));
QCOMPARE(rgn.rects().at(2), QRect(90, 10, 10, 80));
QCOMPARE(rgn.rects().at(3), QRect(0, 90, 100, 10));
QCOMPARE(rgn.boundingRect(), QRect(0, 0, 100, 100));
}
}
Q_DECLARE_METATYPE(QPainterPath)
void tst_QRegion::regionToPath_data()
{
QTest::addColumn<QPainterPath>("path");
{
QPainterPath path;
path.addRect(QRect(0, 0, 10, 10));
QTest::newRow("Rectangle") << path;
}
{
QPainterPath path;
path.addRect(QRect(0, 0, 10, 10));
path.addRect(QRect(20, 0, 10, 10));
QTest::newRow("Two rects") << path;
}
{
QPainterPath path;
path.addEllipse(QRect(0, 0, 10, 10));
QTest::newRow("Ellipse") << path;
}
{
QPainterPath path;
path.addRect(QRect(0, 0, 3, 8));
path.addRect(QRect(6, 0, 3, 8));
path.addRect(QRect(3, 3, 3, 2));
path.addRect(QRect(12, 3, 3, 2));
QTest::newRow("H-dot") << path;
}
{
QPainterPath path;
for (int y = 0; y <= 10; ++y) {
for (int x = 0; x <= 10; ++x) {
if (!(y & 1) || ((x ^ y) & 1))
path.addRect(QRect(x, y, 1, 1));
}
}
QTest::newRow("Grid") << path;
}
}
#ifdef QT_BUILD_INTERNAL
QT_BEGIN_NAMESPACE
extern QPainterPath qt_regionToPath(const QRegion ®ion);
QT_END_NAMESPACE
#endif
void tst_QRegion::regionToPath()
{
#ifdef QT_BUILD_INTERNAL
QFETCH(QPainterPath, path);
for (int i = 0; i < 360; i += 10) {
QTransform transform;
transform.scale(5, 5);
transform.rotate(i);
QPainterPath mapped = transform.map(path);
QRegion region(mapped.toFillPolygon().toPolygon());
QPainterPath a;
a.addRegion(region);
QPainterPath b = qt_regionToPath(region);
QRect r = a.boundingRect().toAlignedRect();
QImage ia(r.size(), QImage::Format_RGB32);
ia.fill(0xffffffff);
QImage ib = ia;
QPainter p(&ia);
p.translate(-r.x(), -r.y());
p.fillPath(a, Qt::red);
p.end();
p.begin(&ib);
p.translate(-r.x(), -r.y());
p.fillPath(b, Qt::red);
p.end();
QCOMPARE(ia, ib);
QCOMPARE(a.boundingRect(), b.boundingRect());
}
#endif
}
QTEST_MAIN(tst_QRegion)
#include "tst_qregion.moc"