diff options
Diffstat (limited to 'tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp')
| -rw-r--r-- | tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp b/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp index 8466305832..9c5b58884a 100644 --- a/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp +++ b/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp @@ -142,6 +142,7 @@ private slots: void koreanWordWrap(); void tooManyDirectionalCharctersCrash_qtbug77819(); void softHyphens(); + void min_maximumWidth(); private: QFont testFont; @@ -2488,5 +2489,41 @@ void tst_QTextLayout::softHyphens() } } +void tst_QTextLayout::min_maximumWidth() +{ + QString longString("lmong_long_crazy_87235982735_23857239682376923876923876-fuwhfhfw-names-AAAA-deeaois2019-03-03.and.more"); + QTextLayout layout(longString, testFont); + + for (int wrapMode = QTextOption::NoWrap; wrapMode <= QTextOption::WrapAtWordBoundaryOrAnywhere; ++wrapMode) { + QTextOption opt; + opt.setWrapMode((QTextOption::WrapMode)wrapMode); + layout.setTextOption(opt); + layout.beginLayout(); + while (layout.createLine().isValid()) { } + layout.endLayout(); + const qreal minWidth = layout.minimumWidth(); + const qreal maxWidth = layout.maximumWidth(); + + // Try the layout from slightly wider than the widest (maxWidth) + // and narrow it down to slighly narrower than minWidth + // layout.maximumWidth() should return the same regardless + qreal width = qCeil(maxWidth/10)*10 + 10; // begin a bit wider + const qreal stepSize = 20; + while (width >= minWidth - stepSize) { + layout.beginLayout(); + for (;;) { + QTextLine line = layout.createLine(); + if (!line.isValid()) + break; + line.setLineWidth(width); + } + layout.endLayout(); + QCOMPARE(layout.minimumWidth(), minWidth); + QCOMPARE(layout.maximumWidth(), maxWidth); + width -= stepSize; + } + } +} + QTEST_MAIN(tst_QTextLayout) #include "tst_qtextlayout.moc" |