// Copyright (C) 2016 The Qt Company Ltd. // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0 #include #include #include #include #include #include #ifndef QT_NO_WIDGETS #include #include #endif class tst_QTextDocumentLayout : public QObject { Q_OBJECT private slots: void init(); void cleanup(); void cleanupTestCase(); void defaultPageSizeHandling(); void idealWidth(); void lineSeparatorFollowingTable(); #ifndef QT_NO_WIDGETS void wrapAtWordBoundaryOrAnywhere(); #endif void inlineImage(); void clippedTableCell(); void floatingTablePageBreak(); void imageAtRightAlignedTab(); void blockVisibility(); void testHitTest(); void largeImage(); private: QTextDocument *doc; }; void tst_QTextDocumentLayout::init() { doc = new QTextDocument; } void tst_QTextDocumentLayout::cleanup() { delete doc; doc = 0; } void tst_QTextDocumentLayout::cleanupTestCase() { if (qgetenv("QTEST_KEEP_IMAGEDATA").toInt() == 0) { QFile::remove(QLatin1String("expected.png")); QFile::remove(QLatin1String("img.png")); } } void tst_QTextDocumentLayout::defaultPageSizeHandling() { QAbstractTextDocumentLayout *layout = doc->documentLayout(); QVERIFY(layout); QVERIFY(!doc->pageSize().isValid()); QSizeF docSize = layout->documentSize(); QVERIFY(docSize.width() > 0 && docSize.width() < 1000); QVERIFY(docSize.height() > 0 && docSize.height() < 1000); doc->setPlainText("Some text\nwith a few lines\nand not real information\nor anything otherwise useful"); docSize = layout->documentSize(); QVERIFY(docSize.isValid()); QVERIFY(docSize.width() != INT_MAX); QVERIFY(docSize.height() != INT_MAX); } void tst_QTextDocumentLayout::idealWidth() { doc->setPlainText("Some text\nwith a few lines\nand not real information\nor anything otherwise useful"); doc->setTextWidth(1000); QCOMPARE(doc->textWidth(), qreal(1000)); QCOMPARE(doc->size().width(), doc->textWidth()); QVERIFY(doc->idealWidth() < doc->textWidth()); QVERIFY(doc->idealWidth() > 0); QTextBlockFormat fmt; fmt.setAlignment(Qt::AlignRight | Qt::AlignAbsolute); QTextCursor cursor(doc); cursor.select(QTextCursor::Document); cursor.mergeBlockFormat(fmt); QCOMPARE(doc->textWidth(), qreal(1000)); QCOMPARE(doc->size().width(), doc->textWidth()); QVERIFY(doc->idealWidth() < doc->textWidth()); QVERIFY(doc->idealWidth() > 0); } // none of the QTextLine items in the document should intersect with the margin rect void tst_QTextDocumentLayout::lineSeparatorFollowingTable() { QString html_begin("

Column 1
Data

"); QString html_text("bla bla bla bla bla bla bla bla
"); QString html_end("

Column 1
Data

"); QString html = html_begin; for (int i = 0; i < 80; ++i) html += html_text; html += html_end; doc->setHtml(html); QTextCursor cursor(doc); cursor.movePosition(QTextCursor::Start); const int margin = 87; const int pageWidth = 873; const int pageHeight = 1358; QTextFrameFormat fmt = doc->rootFrame()->frameFormat(); fmt.setMargin(margin); doc->rootFrame()->setFrameFormat(fmt); QFont font(doc->defaultFont()); font.setPointSize(10); doc->setDefaultFont(font); doc->setPageSize(QSizeF(pageWidth, pageHeight)); QRectF marginRect(QPointF(0, pageHeight - margin), QSizeF(pageWidth, 2 * margin)); // force layouting doc->pageCount(); for (QTextBlock block = doc->begin(); block != doc->end(); block = block.next()) { QTextLayout *layout = block.layout(); for (int i = 0; i < layout->lineCount(); ++i) { QTextLine line = layout->lineAt(i); QRectF rect = line.rect().translated(layout->position()); QVERIFY(!rect.intersects(marginRect)); } } } #ifndef QT_NO_WIDGETS void tst_QTextDocumentLayout::wrapAtWordBoundaryOrAnywhere() { //task 150562 QTextEdit edit; edit.setText("

hello hello hello" "thisisabigwordthisisabigwordthisisabigwordthisisabigwordthisisabigword" "hello hello hello

"); edit.setWordWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere); edit.resize(100, 100); edit.show(); QVERIFY(!edit.horizontalScrollBar()->isVisible()); } #endif void tst_QTextDocumentLayout::inlineImage() { doc->setPageSize(QSizeF(800, 500)); QImage img(400, 400, QImage::Format_RGB32); QLatin1String name("bigImage"); doc->addResource(QTextDocument::ImageResource, QUrl(name), img); QTextImageFormat imgFormat; imgFormat.setName(name); imgFormat.setWidth(img.width()); QTextFrameFormat fmt = doc->rootFrame()->frameFormat(); qreal height = doc->pageSize().height() - fmt.topMargin() - fmt.bottomMargin(); imgFormat.setHeight(height); QTextCursor cursor(doc); cursor.insertImage(imgFormat); QCOMPARE(doc->pageCount(), 1); } void tst_QTextDocumentLayout::clippedTableCell() { const char *html = "

"; doc->setHtml(html); doc->pageSize(); QTextCursor cursor(doc); cursor.movePosition(QTextCursor::Right); QTextTable *table = cursor.currentTable(); QVERIFY(table); QTextCursor cellCursor = table->cellAt(0, 0).firstCursorPosition(); QImage src(16, 16, QImage::Format_ARGB32_Premultiplied); src.fill(0xffff0000); cellCursor.insertImage(src); QTextBlock block = cellCursor.block(); QRectF r = doc->documentLayout()->blockBoundingRect(block); QRectF rect(0, 0, r.left() + 1, 64); QImage img(64, 64, QImage::Format_ARGB32_Premultiplied); img.fill(0x0); QImage expected = img; QPainter p(&img); doc->drawContents(&p, rect); p.end(); p.begin(&expected); r.setWidth(1); p.fillRect(r, Qt::red); p.end(); img.save("img.png"); expected.save("expected.png"); QCOMPARE(img, expected); } void tst_QTextDocumentLayout::floatingTablePageBreak() { doc->clear(); QTextCursor cursor(doc); QTextTableFormat tableFormat; tableFormat.setPosition(QTextFrameFormat::FloatLeft); QTextTable *table = cursor.insertTable(50, 1, tableFormat); Q_UNUSED(table); // Make height of document 2/3 of the table, fitting the table into two pages QSizeF documentSize = doc->size(); documentSize.rheight() *= 2.0 / 3.0; doc->setPageSize(documentSize); QCOMPARE(doc->pageCount(), 2); } void tst_QTextDocumentLayout::imageAtRightAlignedTab() { doc->clear(); QTextFrameFormat fmt = doc->rootFrame()->frameFormat(); fmt.setMargin(0); doc->rootFrame()->setFrameFormat(fmt); QTextCursor cursor(doc); QTextBlockFormat blockFormat; QList tabs; QTextOption::Tab tab; tab.position = 300; tab.type = QTextOption::RightTab; tabs.append(tab); blockFormat.setTabPositions(tabs); // First block: text, some of it right-aligned cursor.insertBlock(blockFormat); cursor.insertText("first line\t"); cursor.insertText("right-aligned text"); // Second block: text, then right-aligned image cursor.insertBlock(blockFormat); cursor.insertText("second line\t"); QImage img(48, 48, QImage::Format_RGB32); const QString name = QString::fromLatin1("image"); doc->addResource(QTextDocument::ImageResource, QUrl(name), img); QTextImageFormat imgFormat; imgFormat.setName(name); cursor.insertImage(imgFormat); // Everything should fit into the 300 pixels qreal bearing = QFontMetricsF(doc->defaultFont()).rightBearing(QLatin1Char('t')); QCOMPARE(doc->idealWidth(), std::max(300.0, 300.0 - bearing)); } void tst_QTextDocumentLayout::blockVisibility() { QTextCursor cursor(doc); for (int i = 0; i < 10; ++i) { if (!doc->isEmpty()) cursor.insertBlock(); cursor.insertText("A"); } qreal margin = doc->documentMargin(); QSizeF emptySize(2 * margin, 2 * margin); QSizeF halfSize = doc->size(); halfSize.rheight() -= 2 * margin; halfSize.rheight() /= 2; halfSize.rheight() += 2 * margin; for (int i = 0; i < 10; i += 2) { QTextBlock block = doc->findBlockByNumber(i); block.setVisible(false); doc->markContentsDirty(block.position(), block.length()); } QCOMPARE(doc->size(), halfSize); for (int i = 1; i < 10; i += 2) { QTextBlock block = doc->findBlockByNumber(i); block.setVisible(false); doc->markContentsDirty(block.position(), block.length()); } QCOMPARE(doc->size(), emptySize); for (int i = 0; i < 10; i += 2) { QTextBlock block = doc->findBlockByNumber(i); block.setVisible(true); doc->markContentsDirty(block.position(), block.length()); } QCOMPARE(doc->size(), halfSize); } void tst_QTextDocumentLayout::largeImage() { auto img = QImage(400, 500, QImage::Format_ARGB32_Premultiplied); img.fill(Qt::black); { QTextDocument document; document.addResource(QTextDocument::ImageResource, QUrl("data://test.png"), QVariant(img)); document.setPageSize({500, 504}); auto html = "

"; document.setHtml(html); QCOMPARE(document.pageCount(), 2); } { QTextDocument document; document.addResource(QTextDocument::ImageResource, QUrl("data://test.png"), QVariant(img)); document.setPageSize({500, 508}); auto html = "

"; document.setHtml(html); QCOMPARE(document.pageCount(), 1); } { QTextDocument document; document.addResource(QTextDocument::ImageResource, QUrl("data://test.png"), QVariant(img)); document.setPageSize({585, 250}); auto html = "

"; document.setHtml(html); QCOMPARE(document.pageCount(), 3); } { QTextDocument document; document.addResource(QTextDocument::ImageResource, QUrl("data://test.png"), QVariant(img)); document.setPageSize({585, 258}); auto html = "

"; document.setHtml(html); QCOMPARE(document.pageCount(), 2); } } void tst_QTextDocumentLayout::testHitTest() { QTextDocument document; QTextCursor cur(&document); int topMargin = 20; //insert 500 blocks into textedit for (int i = 0; i < 500; i++) { cur.insertBlock(); cur.insertHtml(QString("block %1").arg(i)); } //randomly set half the blocks invisible QTextBlock blk=document.begin(); for (int i = 0; i < 500; i++) { if (i % 7) blk.setVisible(0); blk = blk.next(); } //set margin for all blocks (not strictly necessary, but makes easier to click in between blocks) QTextBlockFormat blkfmt; blkfmt.setTopMargin(topMargin); cur.movePosition(QTextCursor::Start); cur.movePosition(QTextCursor::End, QTextCursor::KeepAnchor); cur.mergeBlockFormat(blkfmt); for (int y = cur.selectionStart(); y < cur.selectionEnd(); y += 10) { QPoint mousePoint(1, y); int cursorPos = document.documentLayout()->hitTest(mousePoint, Qt::FuzzyHit); int positionY = document.findBlock(cursorPos).layout()->position().toPoint().y(); //mousePoint is in the rect of the current Block QVERIFY(positionY - topMargin <= y); } } QTEST_MAIN(tst_QTextDocumentLayout) #include "tst_qtextdocumentlayout.moc"