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author | Jan-Arve Sæther <jan-arve.saether@nokia.com> | 2010-08-11 11:29:18 (GMT) |
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committer | Jan-Arve Sæther <jan-arve.saether@nokia.com> | 2010-08-11 11:29:18 (GMT) |
commit | 4d616151fa6b65804c466cd50335c99de41a163c (patch) | |
tree | 8a5b6fe57a340665a54fe5fc5da7787a41b72faf /tests/auto/qgraphicsgridlayout | |
parent | 98b7e8ac793d95a6a8350c7fc25faebd6f44cd21 (diff) | |
parent | 62b5ef3cc1306e46a4042b14867f2f92d9a110f3 (diff) | |
download | Qt-4d616151fa6b65804c466cd50335c99de41a163c.zip Qt-4d616151fa6b65804c466cd50335c99de41a163c.tar.gz Qt-4d616151fa6b65804c466cd50335c99de41a163c.tar.bz2 |
Merge branch 'hfw_2nd' into 4.7
Diffstat (limited to 'tests/auto/qgraphicsgridlayout')
-rw-r--r-- | tests/auto/qgraphicsgridlayout/tst_qgraphicsgridlayout.cpp | 364 |
1 files changed, 360 insertions, 4 deletions
diff --git a/tests/auto/qgraphicsgridlayout/tst_qgraphicsgridlayout.cpp b/tests/auto/qgraphicsgridlayout/tst_qgraphicsgridlayout.cpp index 5b03767..03c1d5b 100644 --- a/tests/auto/qgraphicsgridlayout/tst_qgraphicsgridlayout.cpp +++ b/tests/auto/qgraphicsgridlayout/tst_qgraphicsgridlayout.cpp @@ -107,12 +107,13 @@ private slots: void avoidRecursionInInsertItem(); void styleInfoLeak(); void task236367_maxSizeHint(); + void heightForWidth(); }; class RectWidget : public QGraphicsWidget { public: - RectWidget(QGraphicsItem *parent = 0) : QGraphicsWidget(parent){} + RectWidget(QGraphicsItem *parent = 0) : QGraphicsWidget(parent), m_fnConstraint(0) {} void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) { @@ -125,9 +126,12 @@ public: QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const { - if (m_sizeHints[which].isValid()) { + if (constraint.width() < 0 && constraint.height() < 0 && m_sizeHints[which].isValid()) { return m_sizeHints[which]; } + if (m_fnConstraint) { + return m_fnConstraint(which, constraint); + } return QGraphicsWidget::sizeHint(which, constraint); } @@ -136,7 +140,13 @@ public: updateGeometry(); } + void setConstraintFunction(QSizeF (*fnConstraint)(Qt::SizeHint, const QSizeF &)) { + m_fnConstraint = fnConstraint; + } + QSizeF m_sizeHints[Qt::NSizeHints]; + QSizeF (*m_fnConstraint)(Qt::SizeHint, const QSizeF &); + }; struct ItemDesc @@ -146,7 +156,8 @@ struct ItemDesc m_rowSpan(1), m_colSpan(1), m_sizePolicy(QSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred)), - m_align(0) + m_align(0), + m_fnConstraint(0) { } @@ -213,8 +224,20 @@ struct ItemDesc return (*this); } + ItemDesc &heightForWidth(QSizeF (*fnConstraint)(Qt::SizeHint, const QSizeF &)) { + m_fnConstraint = fnConstraint; + m_constraintOrientation = Qt::Vertical; + return (*this); + } + void apply(QGraphicsGridLayout *layout, QGraphicsWidget *item) { - item->setSizePolicy(m_sizePolicy); + QSizePolicy sp = m_sizePolicy; + if (m_fnConstraint) { + sp.setHeightForWidth(m_constraintOrientation == Qt::Vertical); + //sp.setWidthForHeight(m_constraintOrientation == Qt::Horizontal); + } + + item->setSizePolicy(sp); for (int i = 0; i < Qt::NSizeHints; ++i) { if (!m_sizes[i].isValid()) continue; @@ -233,6 +256,7 @@ struct ItemDesc break; } } + layout->addItem(item, m_pos.first, m_pos.second, m_rowSpan, m_colSpan); layout->setAlignment(item, m_align); } @@ -240,6 +264,7 @@ struct ItemDesc void apply(QGraphicsGridLayout *layout, RectWidget *item) { for (int i = 0; i < Qt::NSizeHints; ++i) item->setSizeHint((Qt::SizeHint)i, m_sizeHints[i]); + item->setConstraintFunction(m_fnConstraint); apply(layout, static_cast<QGraphicsWidget*>(item)); } @@ -251,6 +276,9 @@ struct ItemDesc QSizeF m_sizeHints[Qt::NSizeHints]; QSizeF m_sizes[Qt::NSizeHints]; Qt::Alignment m_align; + + Qt::Orientation m_constraintOrientation; + QSizeF (*m_fnConstraint)(Qt::SizeHint, const QSizeF &); }; typedef QList<ItemDesc> ItemList; @@ -2116,6 +2144,17 @@ void tst_QGraphicsGridLayout::alignment2() delete widget; } +static QSizeF hfw1(Qt::SizeHint, const QSizeF &constraint) +{ + QSizeF result(constraint); + if (constraint.width() < 0 && constraint.height() < 0) { + return QSizeF(50, 400); + } else if (constraint.width() >= 0) { + result.setHeight(20000./constraint.width()); + } + return result; +} + void tst_QGraphicsGridLayout::geometries_data() { @@ -2145,6 +2184,186 @@ void tst_QGraphicsGridLayout::geometries_data() << QRectF(0, 0, 60,10) << QRectF(0, 10, 60,10) ); + // change layout height and verify + QTest::newRow("hfw-h401") << (ItemList() + << ItemDesc(0,0) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(0,1) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(1,0) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(1,1) + .minSize(QSizeF(40,40)) + .preferredSize(QSizeF(50,400)) + .maxSize(QSizeF(500, 500)) + .heightForWidth(hfw1) + ) + << QSizeF(100, 401) + << (RectList() + << QRectF(0, 0, 50, 1) << QRectF(50, 0, 50, 1) + << QRectF(0, 1, 50,100) << QRectF(50, 1, 50,400) + ); + + + QTest::newRow("hfw-h408") << (ItemList() + << ItemDesc(0,0) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(0,1) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(1,0) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(1,1) + .minSize(QSizeF(40,40)) + .preferredSize(QSizeF(50,400)) + .maxSize(QSizeF(500, 500)) + .heightForWidth(hfw1) + ) + << QSizeF(100, 408) + << (RectList() + << QRectF(0, 0, 50, 8) << QRectF(50, 0, 50, 8) + << QRectF(0, 8, 50,100) << QRectF(50, 8, 50,400) + ); + + QTest::newRow("hfw-h410") << (ItemList() + << ItemDesc(0,0) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(0,1) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(1,0) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(1,1) + .minSize(QSizeF(40,40)) + .preferredSize(QSizeF(50,400)) + .maxSize(QSizeF(500, 500)) + .heightForWidth(hfw1) + ) + << QSizeF(100, 410) + << (RectList() + << QRectF(0, 0, 50,10) << QRectF(50, 0, 50,10) + << QRectF(0, 10, 50,100) << QRectF(50, 10, 50,400) + ); + + QTest::newRow("hfw-h470") << (ItemList() + << ItemDesc(0,0) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(0,1) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(1,0) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(1,1) + .minSize(QSizeF(40,40)) + .preferredSize(QSizeF(50,400)) + .maxSize(QSizeF(500, 500)) + .heightForWidth(hfw1) + ) + << QSizeF(100, 470) + << (RectList() + << QRectF(0, 0, 50,70) << QRectF(50, 0, 50,70) + << QRectF(0, 70, 50,100) << QRectF(50, 70, 50,400) + ); + + + // change layout width and verify + QTest::newRow("hfw-w100") << (ItemList() + << ItemDesc(0,0) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(0,1) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(1,0) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(1,1) + .minSize(QSizeF(40,40)) + .preferredSize(QSizeF(50,400)) + .maxSize(QSizeF(5000, 5000)) + .heightForWidth(hfw1) + ) + << QSizeF(100, 401) + << (RectList() + << QRectF( 0, 0, 50, 1) << QRectF( 50, 0, 50, 1) + << QRectF( 0, 1, 50, 100) << QRectF( 50, 1, 50, 400) + ); + + QTest::newRow("hfw-w160") << (ItemList() + << ItemDesc(0,0) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(0,1) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(1,0) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(1,1) + .minSize(QSizeF(40,40)) + .preferredSize(QSizeF(50,400)) + .maxSize(QSizeF(5000, 5000)) + .heightForWidth(hfw1) + ) + << QSizeF(160, 401) + << (RectList() + << QRectF( 0, 0, 80, 100) << QRectF( 80, 0, 80, 100) + << QRectF( 0, 100, 80, 100) << QRectF( 80, 100, 80, 250) + ); + + + QTest::newRow("hfw-w500") << (ItemList() + << ItemDesc(0,0) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(0,1) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(1,0) + .minSize(QSizeF(1,1)) + .preferredSize(QSizeF(50,10)) + .maxSize(QSizeF(100, 100)) + << ItemDesc(1,1) + .minSize(QSizeF(40,40)) + .preferredSize(QSizeF(50,400)) + .maxSize(QSizeF(5000, 5000)) + .heightForWidth(hfw1) + ) + << QSizeF(500, 401) + << (RectList() + << QRectF( 0, 0, 100, 100) << QRectF(100, 0, 100, 100) + << QRectF( 0, 100, 100, 100) << QRectF(100, 100, 400, 50) + ); + } void tst_QGraphicsGridLayout::geometries() @@ -2215,6 +2434,143 @@ void tst_QGraphicsGridLayout::task236367_maxSizeHint() QCOMPARE(widget->size(), QSizeF(w, h)); } +/* +static qreal hfw(qreal w) +{ + if (w == 0) + return 20000; + return 20000/w; +} +*/ +static QSizeF hfw(Qt::SizeHint /*which*/, const QSizeF &constraint) +{ + QSizeF result(constraint); + const qreal cw = constraint.width(); + const qreal ch = constraint.height(); + if (cw < 0 && ch < 0) { + return QSizeF(200, 100); + } else if (cw >= 0) { + result.setHeight(20000./cw); + } else if (cw == 0) { + result.setHeight(20000); + } else if (ch >= 0) { + result.setWidth(20000./ch); + } else if (ch == 0) { + result.setWidth(20000); + } + + return result; +} + +static qreal growthFactorBelowPreferredSize(qreal desired, qreal sumAvailable, qreal sumDesired) +{ + Q_ASSERT(sumDesired != 0.0); + return desired * qPow(sumAvailable / sumDesired, desired / sumDesired); +} + +static void expectedWidth(qreal minSize1, qreal prefSize1, + qreal minSize2, qreal prefSize2, + qreal targetSize, qreal *width1, qreal *width2) +{ + qreal sumAvail,factor1,factor2; + // stretch behaviour is different below and above preferred size... + if (targetSize < prefSize1 + prefSize2) { + sumAvail = targetSize - minSize1 - minSize2; + const qreal desired1 = prefSize1 - minSize1; + const qreal desired2 = prefSize2 - minSize2; + const qreal sumDesired = desired1 + desired2; + factor1 = growthFactorBelowPreferredSize(desired1, sumAvail, sumDesired); + factor2 = growthFactorBelowPreferredSize(desired2, sumAvail, sumDesired); + const qreal sumFactors = factor1 + factor2; + *width1 = sumAvail*factor1/sumFactors + minSize1; + *width2 = sumAvail*factor2/sumFactors + minSize2; + } else { + sumAvail = targetSize - prefSize1 - prefSize2; + factor1 = prefSize1; + factor2 = prefSize2; + const qreal sumFactors = factor1 + factor2; + *width1 = sumAvail*factor1/sumFactors + prefSize1; + *width2 = sumAvail*factor2/sumFactors + prefSize2; + } +} + + +bool qFuzzyCompare(const QSizeF &a, const QSizeF &b) +{ + return qFuzzyCompare(a.width(), b.width()) && qFuzzyCompare(a.height(), b.height()); +} + +void tst_QGraphicsGridLayout::heightForWidth() +{ + QGraphicsWidget *widget = new QGraphicsWidget; + QGraphicsGridLayout *layout = new QGraphicsGridLayout; + widget->setLayout(layout); + layout->setContentsMargins(0, 0, 0, 0); + layout->setSpacing(0); + RectWidget *w00 = new RectWidget; + w00->setSizeHint(Qt::MinimumSize, QSizeF(1,1)); + w00->setSizeHint(Qt::PreferredSize, QSizeF(10,10)); + w00->setSizeHint(Qt::MaximumSize, QSizeF(100,100)); + layout->addItem(w00, 0, 0); + + RectWidget *w01 = new RectWidget; + w01->setSizeHint(Qt::MinimumSize, QSizeF(1,1)); + w01->setSizeHint(Qt::PreferredSize, QSizeF(10,10)); + w01->setSizeHint(Qt::MaximumSize, QSizeF(100,100)); + layout->addItem(w01, 0, 1); + + RectWidget *w10 = new RectWidget; + w10->setSizeHint(Qt::MinimumSize, QSizeF(1,1)); + w10->setSizeHint(Qt::PreferredSize, QSizeF(10,10)); + w10->setSizeHint(Qt::MaximumSize, QSizeF(100,100)); + layout->addItem(w10, 1, 0); + + RectWidget *w11 = new RectWidget; + w11->setSizeHint(Qt::MinimumSize, QSizeF(1,1)); + w11->setSizeHint(Qt::MaximumSize, QSizeF(30000,30000)); + w11->setConstraintFunction(hfw); + QSizePolicy sp(QSizePolicy::Preferred, QSizePolicy::Preferred); + sp.setHeightForWidth(true); + w11->setSizePolicy(sp); + layout->addItem(w11, 1, 1); + + QSizeF prefSize = layout->effectiveSizeHint(Qt::PreferredSize, QSizeF(-1, -1)); + QCOMPARE(prefSize, QSizeF(10+200, 10+100)); + + QCOMPARE(layout->effectiveSizeHint(Qt::MinimumSize, QSizeF(2, -1)), QSizeF(2, 20001)); + QCOMPARE(layout->effectiveSizeHint(Qt::PreferredSize, QSizeF(2, -1)), QSizeF(2, 20010)); + QCOMPARE(layout->effectiveSizeHint(Qt::MaximumSize, QSizeF(2, -1)), QSizeF(2, 20100)); + qreal width1; + qreal width2; + expectedWidth(1, 10, 1, 200, 20, &width1, &width2); + QSizeF expectedSize = hfw(Qt::MinimumSize, QSizeF(width2, -1)) + QSizeF(width1, 1); + QCOMPARE(layout->effectiveSizeHint(Qt::MinimumSize, QSizeF(20, -1)), expectedSize); + expectedSize.rheight()+=9; + QCOMPARE(layout->effectiveSizeHint(Qt::PreferredSize, QSizeF(20, -1)), expectedSize); + expectedSize.rheight()+=90; + QCOMPARE(layout->effectiveSizeHint(Qt::MaximumSize, QSizeF(20, -1)), expectedSize); + + expectedWidth(1, 10, 1, 200, 300, &width1, &width2); + expectedSize = hfw(Qt::MinimumSize, QSizeF(width2, -1)) + QSizeF(width1, 1); + QCOMPARE(layout->effectiveSizeHint(Qt::MinimumSize, QSizeF(300, -1)), expectedSize); + expectedSize.rheight()+=9; + QCOMPARE(layout->effectiveSizeHint(Qt::PreferredSize, QSizeF(300, -1)), expectedSize); + // the height of the hfw widget is shorter than the one to the left, which is 100, so + // the total height of the last row is 100 (which leaves the layout height to be 200) + QCOMPARE(layout->effectiveSizeHint(Qt::MaximumSize, QSizeF(300, -1)), QSizeF(300, 200)); + + // the hfw item is shorter than the item to the left + expectedWidth(1, 10, 1, 200, 500, &width1, &width2); + expectedSize = hfw(Qt::MinimumSize, QSizeF(width2, -1)) + QSizeF(width1, 1); + QCOMPARE(layout->effectiveSizeHint(Qt::MinimumSize, QSizeF(500, -1)), expectedSize); + expectedSize.rheight()+=9; + QCOMPARE(layout->effectiveSizeHint(Qt::PreferredSize, QSizeF(500, -1)), expectedSize); + // the height of the hfw widget is shorter than the one to the left, which is 100, so + // the total height of the last row is 100 (which leaves the layout height to be 200) + QCOMPARE(layout->effectiveSizeHint(Qt::MaximumSize, QSizeF(500, -1)), QSizeF(500, 200)); + +} + QTEST_MAIN(tst_QGraphicsGridLayout) #include "tst_qgraphicsgridlayout.moc" |