Esempio n. 1
0
void tst_QRawFont::unsupportedWritingSystem()
{
    QFETCH(QFont::HintingPreference, hintingPreference);

    QFontDatabase fontDatabase;
    int id = fontDatabase.addApplicationFont(QLatin1String(SRCDIR "testfont.ttf"));

    QFont font("QtBidiTestFont");
    font.setHintingPreference(hintingPreference);
    font.setPixelSize(12.0);

    QRawFont rawFont = QRawFont::fromFont(font, QFontDatabase::Any);
    QCOMPARE(rawFont.familyName(), QString::fromLatin1("QtBidiTestFont"));
    QCOMPARE(rawFont.pixelSize(), 12.0);

    rawFont = QRawFont::fromFont(font, QFontDatabase::Hebrew);
    QCOMPARE(rawFont.familyName(), QString::fromLatin1("QtBidiTestFont"));
    QCOMPARE(rawFont.pixelSize(), 12.0);

    QString arabicText = QFontDatabase::writingSystemSample(QFontDatabase::Arabic);

    QTextLayout layout;
    layout.setFont(font);
    layout.setText(arabicText);
    layout.beginLayout();
    layout.createLine();
    layout.endLayout();

    QList<QGlyphRun> glyphRuns = layout.glyphRuns();
    QCOMPARE(glyphRuns.size(), 1);

    QGlyphRun glyphs = glyphRuns.at(0);
    QRawFont layoutFont = glyphs.rawFont();
    QVERIFY(layoutFont.familyName() != QString::fromLatin1("QtBidiTestFont"));
    QCOMPARE(layoutFont.pixelSize(), 12.0);

    rawFont = QRawFont::fromFont(font, QFontDatabase::Arabic);
    QCOMPARE(rawFont.familyName(), layoutFont.familyName());
    QCOMPARE(rawFont.pixelSize(), 12.0);

    fontDatabase.removeApplicationFont(id);
}
Esempio n. 2
0
void BoxBuilder::build(const QTextDocument* doc,const QSize& pixmapSize, const QColor& glyphColor)
{
	pixmap_ = QPixmap(pixmapSize);
	pixmap_.fill(Qt::white);

	glyphPen_ = QPen(glyphColor);
		
	boxes_.clear();
	for(QTextBlock block = doc->begin();block!=doc->end();block=block.next())
	{
		//log_ << "BLOCK has started" << std::endl;
		QTextLayout* tl = block.layout();
		QString blockText = block.text();

			
		QList<QGlyphRun> glyphs = tl->glyphRuns();		
		
		int glyphsNum = 0;
		std::for_each(glyphs.begin(),glyphs.end(),[&glyphsNum](QGlyphRun grun)
		{
			glyphsNum += grun.glyphIndexes().size();
		});

		if(glyphsNum != blockText.length())
			log_ << " the number of glyphs in the layout differs with text length, the numbers are: " <<
			glyphsNum << " and " << blockText.length() << std::endl;
		
		glyphPosition_ = tl->position();		
		blockText_ = blockText;
			
		std::for_each(	glyphs.begin(),
						glyphs.end(),
						[this](const QGlyphRun& grun)
						{handleGlyphRun_(grun);});
	}
	
}
void QQuickTextNodeEngine::addTextBlock(QTextDocument *textDocument, const QTextBlock &block, const QPointF &position, const QColor &textColor, const QColor &anchorColor, int selectionStart, int selectionEnd)
{
    Q_ASSERT(textDocument);
#ifndef QT_NO_IM
    int preeditLength = block.isValid() ? block.layout()->preeditAreaText().length() : 0;
    int preeditPosition = block.isValid() ? block.layout()->preeditAreaPosition() : -1;
#endif

    QVarLengthArray<QTextLayout::FormatRange> colorChanges;
    mergeFormats(block.layout(), &colorChanges);

    QPointF blockPosition = textDocument->documentLayout()->blockBoundingRect(block).topLeft() + position;
    if (QTextList *textList = block.textList()) {
        QPointF pos = blockPosition;
        QTextLayout *layout = block.layout();
        if (layout->lineCount() > 0) {
            QTextLine firstLine = layout->lineAt(0);
            Q_ASSERT(firstLine.isValid());

            setCurrentLine(firstLine);

            QRectF textRect = firstLine.naturalTextRect();
            pos += textRect.topLeft();
            if (block.textDirection() == Qt::RightToLeft)
                pos.rx() += textRect.width();

            const QTextCharFormat charFormat = block.charFormat();
            QFont font(charFormat.font());
            QFontMetricsF fontMetrics(font);
            QTextListFormat listFormat = textList->format();

            QString listItemBullet;
            switch (listFormat.style()) {
            case QTextListFormat::ListCircle:
                listItemBullet = QChar(0x25E6); // White bullet
                break;
            case QTextListFormat::ListSquare:
                listItemBullet = QChar(0x25AA); // Black small square
                break;
            case QTextListFormat::ListDecimal:
            case QTextListFormat::ListLowerAlpha:
            case QTextListFormat::ListUpperAlpha:
            case QTextListFormat::ListLowerRoman:
            case QTextListFormat::ListUpperRoman:
                listItemBullet = textList->itemText(block);
                break;
            default:
                listItemBullet = QChar(0x2022); // Black bullet
                break;
            };

            QSizeF size(fontMetrics.width(listItemBullet), fontMetrics.height());
            qreal xoff = fontMetrics.width(QLatin1Char(' '));
            if (block.textDirection() == Qt::LeftToRight)
                xoff = -xoff - size.width();
            setPosition(pos + QPointF(xoff, 0));

            QTextLayout layout;
            layout.setFont(font);
            layout.setText(listItemBullet); // Bullet
            layout.beginLayout();
            QTextLine line = layout.createLine();
            line.setPosition(QPointF(0, 0));
            layout.endLayout();

            QList<QGlyphRun> glyphRuns = layout.glyphRuns();
            for (int i=0; i<glyphRuns.size(); ++i)
                addUnselectedGlyphs(glyphRuns.at(i));
        }
    }

    int textPos = block.position();
    QTextBlock::iterator blockIterator = block.begin();

    while (!blockIterator.atEnd()) {
        QTextFragment fragment = blockIterator.fragment();
        QString text = fragment.text();
        if (text.isEmpty())
            continue;

        QTextCharFormat charFormat = fragment.charFormat();
        QFont font(charFormat.font());
        QFontMetricsF fontMetrics(font);

        int fontHeight = fontMetrics.descent() + fontMetrics.ascent();
        int valign = charFormat.verticalAlignment();
        if (valign == QTextCharFormat::AlignSuperScript)
            setPosition(QPointF(blockPosition.x(), blockPosition.y() - fontHeight / 2));
        else if (valign == QTextCharFormat::AlignSubScript)
            setPosition(QPointF(blockPosition.x(), blockPosition.y() + fontHeight / 6));
        else
            setPosition(blockPosition);

        if (text.contains(QChar::ObjectReplacementCharacter)) {
            QTextFrame *frame = qobject_cast<QTextFrame *>(textDocument->objectForFormat(charFormat));
            if (frame && frame->frameFormat().position() == QTextFrameFormat::InFlow) {
                int blockRelativePosition = textPos - block.position();
                QTextLine line = block.layout()->lineForTextPosition(blockRelativePosition);
                if (!currentLine().isValid()
                        || line.lineNumber() != currentLine().lineNumber()) {
                    setCurrentLine(line);
                }

                QQuickTextNodeEngine::SelectionState selectionState =
                        (selectionStart < textPos + text.length()
                         && selectionEnd >= textPos)
                        ? QQuickTextNodeEngine::Selected
                        : QQuickTextNodeEngine::Unselected;

                addTextObject(QPointF(), charFormat, selectionState, textDocument, textPos);
            }
            textPos += text.length();
        } else {
            if (charFormat.foreground().style() != Qt::NoBrush)
                setTextColor(charFormat.foreground().color());
            else if (charFormat.isAnchor())
                setTextColor(anchorColor);
            else
                setTextColor(textColor);

            int fragmentEnd = textPos + fragment.length();
#ifndef QT_NO_IM
            if (preeditPosition >= 0
                    && (preeditPosition + block.position()) >= textPos
                    && (preeditPosition + block.position()) <= fragmentEnd) {
                fragmentEnd += preeditLength;
            }
#endif
            if (charFormat.background().style() != Qt::NoBrush) {
                QTextLayout::FormatRange additionalFormat;
                additionalFormat.start = textPos - block.position();
                additionalFormat.length = fragmentEnd - textPos;
                additionalFormat.format = charFormat;
                colorChanges << additionalFormat;
            }

            textPos = addText(block, charFormat, textColor, colorChanges, textPos, fragmentEnd,
                                                 selectionStart, selectionEnd);
        }

        ++blockIterator;
    }

#ifndef QT_NO_IM
    if (preeditLength >= 0 && textPos <= block.position() + preeditPosition) {
        setPosition(blockPosition);
        textPos = block.position() + preeditPosition;
        QTextLine line = block.layout()->lineForTextPosition(preeditPosition);
        if (!currentLine().isValid()
                || line.lineNumber() != currentLine().lineNumber()) {
            setCurrentLine(line);
        }
        textPos = addText(block, block.charFormat(), textColor, colorChanges,
                                             textPos, textPos + preeditLength,
                                             selectionStart, selectionEnd);
    }
#endif

    setCurrentLine(QTextLine()); // Reset current line because the text layout changed
    m_hasContents = true;
}