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Add QTextDocument* constructor argument to QTextMarkdownImporter 

QTextMarkdownImporter::import() took a QTD* as if it would be ok to
reuse one instance of QTextMarkdownImporter for repeated importing into
different documents; but in practice, we never do that: in fact it's
usually a short-lived, stack-allocated object, as in
 QTextMarkdownImporter(&doc, QTMI::DialectGitHub).import(input);
So it's less clumsy internally to require the document be provided to
the constructor: that way a QTextCursor can be constructed immediately
too, as part of the importer object rather than separately on the heap.

This is private API, unused outside qtbase.

Change-Id: I8041ceb33cb7e7608df55dc5a963292c585afb90
Reviewed-by: Oliver Eftevaag <oliver.eftevaag@qt.io>
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
bb10
Shawn Rutledge 2023-05-22 14:20:12 +02:00
parent 09f7408d03
commit 801b8304fb
5 changed files with 63 additions and 66 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/gui/text/qtextdocument.cpp
View File

@ -3554,7 +3554,7 @@ QString QTextDocument::toMarkdown(QTextDocument::MarkdownFeatures features) cons
#if QT_CONFIG(textmarkdownreader)
void QTextDocument::setMarkdown(const QString &markdown, QTextDocument::MarkdownFeatures features)
{
QTextMarkdownImporter(features).import(this, markdown);
QTextMarkdownImporter(this, features).import(markdown);
}
#endif

3
src/gui/text/qtextdocumentfragment.cpp
View File

@ -1313,8 +1313,7 @@ QTextDocumentFragment QTextDocumentFragment::fromMarkdown(const QString &markdow
QTextDocumentFragment res;
res.d = new QTextDocumentFragmentPrivate;
QTextMarkdownImporter importer(features);
importer.import(res.d->doc, markdown);
QTextMarkdownImporter(res.d->doc, features).import(markdown);
return res;
}

107
src/gui/text/qtextmarkdownimporter.cpp
View File

@ -104,18 +104,19 @@ static Qt::Alignment MdAlignment(MD_ALIGN a, Qt::Alignment defaultAlignment = Qt
}
}
QTextMarkdownImporter::QTextMarkdownImporter(QTextMarkdownImporter::Features features)
: m_monoFont(QFontDatabase::systemFont(QFontDatabase::FixedFont))
QTextMarkdownImporter::QTextMarkdownImporter(QTextDocument *doc, QTextMarkdownImporter::Features features)
: m_cursor(doc)
, m_monoFont(QFontDatabase::systemFont(QFontDatabase::FixedFont))
, m_features(features)
{
}
QTextMarkdownImporter::QTextMarkdownImporter(QTextDocument::MarkdownFeatures features)
: QTextMarkdownImporter(static_cast<QTextMarkdownImporter::Features>(int(features)))
QTextMarkdownImporter::QTextMarkdownImporter(QTextDocument *doc, QTextDocument::MarkdownFeatures features)
: QTextMarkdownImporter(doc, static_cast<QTextMarkdownImporter::Features>(int(features)))
{
}
void QTextMarkdownImporter::import(QTextDocument *doc, const QString &markdown)
void QTextMarkdownImporter::import(const QString &markdown)
{
MD_PARSER callbacks = {
0, // abi_version
@ -128,21 +129,19 @@ void QTextMarkdownImporter::import(QTextDocument *doc, const QString &markdown)
&CbDebugLog,
nullptr // syntax
};
m_doc = doc;
m_paragraphMargin = m_doc->defaultFont().pointSize() * 2 / 3;
m_cursor = new QTextCursor(doc);
QTextDocument *doc = m_cursor.document();
const auto defaultFont = doc->defaultFont();
m_paragraphMargin = defaultFont.pointSize() * 2 / 3;
doc->clear();
if (doc->defaultFont().pointSize() != -1)
m_monoFont.setPointSize(doc->defaultFont().pointSize());
if (defaultFont.pointSize() != -1)
m_monoFont.setPointSize(defaultFont.pointSize());
else
m_monoFont.setPixelSize(doc->defaultFont().pixelSize());
qCDebug(lcMD) << "default font" << doc->defaultFont() << "mono font" << m_monoFont;
m_monoFont.setPixelSize(defaultFont.pixelSize());
qCDebug(lcMD) << "default font" << defaultFont << "mono font" << m_monoFont;
QByteArray md = markdown.toUtf8();
m_cursor->beginEditBlock();
m_cursor.beginEditBlock();
md_parse(md.constData(), MD_SIZE(md.size()), &callbacks, this);
m_cursor->endEditBlock();
delete m_cursor;
m_cursor = nullptr;
m_cursor.endEditBlock();
}
int QTextMarkdownImporter::cbEnterBlock(int blockType, void *det)
@ -181,11 +180,11 @@ int QTextMarkdownImporter::cbEnterBlock(int blockType, void *det)
charFmt.setFontWeight(QFont::Bold);
blockFmt.setHeadingLevel(int(detail->level));
m_needsInsertBlock = false;
if (m_doc->isEmpty()) {
m_cursor->setBlockFormat(blockFmt);
m_cursor->setCharFormat(charFmt);
if (m_cursor.document()->isEmpty()) {
m_cursor.setBlockFormat(blockFmt);
m_cursor.setCharFormat(charFmt);
} else {
m_cursor->insertBlock(blockFmt, charFmt);
m_cursor.insertBlock(blockFmt, charFmt);
}
qCDebug(lcMD, "H%d", detail->level);
} break;
@ -200,7 +199,7 @@ int QTextMarkdownImporter::cbEnterBlock(int blockType, void *det)
} break;
case MD_BLOCK_UL: {
if (m_needsInsertList) // list nested in an empty list
m_listStack.push(m_cursor->insertList(m_listFormat));
m_listStack.push(m_cursor.insertList(m_listFormat));
else
m_needsInsertList = true;
MD_BLOCK_UL_DETAIL *detail = static_cast<MD_BLOCK_UL_DETAIL *>(det);
@ -221,7 +220,7 @@ int QTextMarkdownImporter::cbEnterBlock(int blockType, void *det)
} break;
case MD_BLOCK_OL: {
if (m_needsInsertList) // list nested in an empty list
m_listStack.push(m_cursor->insertList(m_listFormat));
m_listStack.push(m_cursor.insertList(m_listFormat));
else
m_needsInsertList = true;
MD_BLOCK_OL_DETAIL *detail = static_cast<MD_BLOCK_OL_DETAIL *>(det);
@ -242,10 +241,10 @@ int QTextMarkdownImporter::cbEnterBlock(int blockType, void *det)
qWarning("malformed table in Markdown input");
return 1;
}
*m_cursor = cell.firstCursorPosition();
QTextBlockFormat blockFmt = m_cursor->blockFormat();
m_cursor = cell.firstCursorPosition();
QTextBlockFormat blockFmt = m_cursor.blockFormat();
blockFmt.setAlignment(MdAlignment(detail->align));
m_cursor->setBlockFormat(blockFmt);
m_cursor.setBlockFormat(blockFmt);
qCDebug(lcMD) << "TD; align" << detail->align << MdAlignment(detail->align) << "col" << m_tableCol;
} break;
case MD_BLOCK_TH: {
@ -273,13 +272,13 @@ int QTextMarkdownImporter::cbEnterBlock(int blockType, void *det)
case MD_BLOCK_TABLE:
m_tableColumnCount = 0;
m_tableRowCount = 0;
m_currentTable = m_cursor->insertTable(1, 1); // we don't know the dimensions yet
m_currentTable = m_cursor.insertTable(1, 1); // we don't know the dimensions yet
break;
case MD_BLOCK_HR: {
qCDebug(lcMD, "HR");
QTextBlockFormat blockFmt;
blockFmt.setProperty(QTextFormat::BlockTrailingHorizontalRulerWidth, 1);
m_cursor->insertBlock(blockFmt, QTextCharFormat());
m_cursor.insertBlock(blockFmt, QTextCharFormat());
} break;
default:
break; // nothing to do for now
@ -297,7 +296,7 @@ int QTextMarkdownImporter::cbLeaveBlock(int blockType, void *detail)
case MD_BLOCK_UL:
case MD_BLOCK_OL:
if (Q_UNLIKELY(m_needsInsertList))
m_listStack.push(m_cursor->createList(m_listFormat));
m_listStack.push(m_cursor.createList(m_listFormat));
if (Q_UNLIKELY(m_listStack.isEmpty())) {
qCWarning(lcMD, "list ended unexpectedly");
} else {
@ -335,7 +334,7 @@ int QTextMarkdownImporter::cbLeaveBlock(int blockType, void *detail)
case MD_BLOCK_TABLE:
qCDebug(lcMD) << "table ended with" << m_currentTable->columns() << "cols and" << m_currentTable->rows() << "rows";
m_currentTable = nullptr;
m_cursor->movePosition(QTextCursor::End);
m_cursor.movePosition(QTextCursor::End);
break;
case MD_BLOCK_LI:
qCDebug(lcMD, "LI at level %d ended", int(m_listStack.size()));
@ -352,7 +351,7 @@ int QTextMarkdownImporter::cbLeaveBlock(int blockType, void *detail)
m_needsInsertBlock = true;
} break;
case MD_BLOCK_H:
m_cursor->setCharFormat(QTextCharFormat());
m_cursor.setCharFormat(QTextCharFormat());
break;
default:
break;
@ -406,7 +405,7 @@ int QTextMarkdownImporter::cbEnterSpan(int spanType, void *det)
qCDebug(lcMD) << spanType << "setCharFormat" << charFmt.font().families().first()
<< charFmt.fontWeight() << (charFmt.fontItalic() ? "italic" : "")
<< charFmt.foreground().color().name();
m_cursor->setCharFormat(charFmt);
m_cursor.setCharFormat(charFmt);
return 0; // no error
}
@ -419,7 +418,7 @@ int QTextMarkdownImporter::cbLeaveSpan(int spanType, void *detail)
if (!m_spanFormatStack.isEmpty())
charFmt = m_spanFormatStack.top();
}
m_cursor->setCharFormat(charFmt);
m_cursor.setCharFormat(charFmt);
qCDebug(lcMD) << spanType << "setCharFormat" << charFmt.font().families().first()
<< charFmt.fontWeight() << (charFmt.fontItalic() ? "italic" : "")
<< charFmt.foreground().color().name();
@ -464,7 +463,7 @@ int QTextMarkdownImporter::cbText(int textType, const char *text, unsigned size)
if (m_htmlTagDepth)
m_htmlAccumulator += s;
else
m_cursor->insertHtml(s);
m_cursor.insertHtml(s);
s = QString();
break;
#endif
@ -486,11 +485,11 @@ int QTextMarkdownImporter::cbText(int textType, const char *text, unsigned size)
m_htmlAccumulator += s;
if (!m_htmlTagDepth) { // all open tags are now closed
qCDebug(lcMD) << "HTML" << m_htmlAccumulator;
m_cursor->insertHtml(m_htmlAccumulator);
m_cursor.insertHtml(m_htmlAccumulator);
if (m_spanFormatStack.isEmpty())
m_cursor->setCharFormat(QTextCharFormat());
m_cursor.setCharFormat(QTextCharFormat());
else
m_cursor->setCharFormat(m_spanFormatStack.top());
m_cursor.setCharFormat(m_spanFormatStack.top());
m_htmlAccumulator = QString();
}
#endif
@ -520,24 +519,24 @@ int QTextMarkdownImporter::cbText(int textType, const char *text, unsigned size)
m_imageFormat.setProperty(QTextFormat::ImageAltText, s);
qCDebug(lcMD) << "image" << m_imageFormat.name()
<< "title" << m_imageFormat.stringProperty(QTextFormat::ImageTitle)
<< "alt" << s << "relative to" << m_doc->baseUrl();
m_cursor->insertImage(m_imageFormat);
<< "alt" << s << "relative to" << m_cursor.document()->baseUrl();
m_cursor.insertImage(m_imageFormat);
return 0; // no error
}
if (!s.isEmpty())
m_cursor->insertText(s);
if (m_cursor->currentList()) {
m_cursor.insertText(s);
if (m_cursor.currentList()) {
// The list item will indent the list item's text, so we don't need indentation on the block.
QTextBlockFormat bfmt = m_cursor->blockFormat();
QTextBlockFormat bfmt = m_cursor.blockFormat();
bfmt.setIndent(0);
m_cursor->setBlockFormat(bfmt);
m_cursor.setBlockFormat(bfmt);
}
if (lcMD().isEnabled(QtDebugMsg)) {
QTextBlockFormat bfmt = m_cursor->blockFormat();
QTextBlockFormat bfmt = m_cursor.blockFormat();
QString debugInfo;
if (m_cursor->currentList())
debugInfo = "in list at depth "_L1 + QString::number(m_cursor->currentList()->format().indent());
if (m_cursor.currentList())
debugInfo = "in list at depth "_L1 + QString::number(m_cursor.currentList()->format().indent());
if (bfmt.hasProperty(QTextFormat::BlockQuoteLevel))
debugInfo += "in blockquote at depth "_L1 +
QString::number(bfmt.intProperty(QTextFormat::BlockQuoteLevel));
@ -554,7 +553,7 @@ int QTextMarkdownImporter::cbText(int textType, const char *text, unsigned size)
Insert a new block based on stored state.
m_cursor cannot store the state for the _next_ block ahead of time, because
m_cursor->setBlockFormat() controls the format of the block that the cursor
m_cursor.setBlockFormat() controls the format of the block that the cursor
is already in; so cbLeaveBlock() cannot call setBlockFormat() without
altering the block that was just added. Therefore cbLeaveBlock() and the
following cbEnterBlock() set variables to remember what formatting should
@ -596,19 +595,19 @@ void QTextMarkdownImporter::insertBlock()
blockFormat.setMarker(m_markerType);
if (!m_listStack.isEmpty())
blockFormat.setIndent(m_listStack.size());
if (m_doc->isEmpty()) {
m_cursor->setBlockFormat(blockFormat);
m_cursor->setCharFormat(charFormat);
if (m_cursor.document()->isEmpty()) {
m_cursor.setBlockFormat(blockFormat);
m_cursor.setCharFormat(charFormat);
} else if (m_listItem) {
m_cursor->insertBlock(blockFormat, QTextCharFormat());
m_cursor->setCharFormat(charFormat);
m_cursor.insertBlock(blockFormat, QTextCharFormat());
m_cursor.setCharFormat(charFormat);
} else {
m_cursor->insertBlock(blockFormat, charFormat);
m_cursor.insertBlock(blockFormat, charFormat);
}
if (m_needsInsertList) {
m_listStack.push(m_cursor->createList(m_listFormat));
m_listStack.push(m_cursor.createList(m_listFormat));
} else if (!m_listStack.isEmpty() && m_listItem && m_listStack.top()) {
m_listStack.top()->add(m_cursor->block());
m_listStack.top()->add(m_cursor.block());
}
m_needsInsertList = false;
m_needsInsertBlock = false;

9
src/gui/text/qtextmarkdownimporter_p.h
View File

@ -55,10 +55,10 @@ public:
};
Q_DECLARE_FLAGS(Features, Feature)
QTextMarkdownImporter(Features features);
QTextMarkdownImporter(QTextDocument::MarkdownFeatures features);
QTextMarkdownImporter(QTextDocument *doc, Features features);
QTextMarkdownImporter(QTextDocument *doc, QTextDocument::MarkdownFeatures features);
void import(QTextDocument *doc, const QString &markdown);
void import(const QString &markdown);
public:
// MD4C callbacks
@ -72,8 +72,7 @@ private:
void insertBlock();
private:
QTextDocument *m_doc = nullptr;
QTextCursor *m_cursor = nullptr;
QTextCursor m_cursor;
QTextTable *m_currentTable = nullptr; // because m_cursor->currentTable() doesn't work
#if QT_CONFIG(regularexpression)
QString m_htmlAccumulator;

8
tests/auto/gui/text/qtextmarkdownimporter/tst_qtextmarkdownimporter.cpp
View File

@ -101,7 +101,7 @@ void tst_QTextMarkdownImporter::headingBulletsContinuations()
f.close();
QTextDocument doc;
QTextMarkdownImporter(QTextMarkdownImporter::DialectGitHub).import(&doc, md);
QTextMarkdownImporter(&doc, QTextMarkdownImporter::DialectGitHub).import(md);
QTextFrame::iterator iterator = doc.rootFrame()->begin();
QTextFrame *currentFrame = iterator.currentFrame();
QStringList::const_iterator expectedIt = expectedBlocks.constBegin();
@ -149,7 +149,7 @@ void tst_QTextMarkdownImporter::thematicBreaks()
f.close();
QTextDocument doc;
QTextMarkdownImporter(QTextMarkdownImporter::DialectGitHub).import(&doc, md);
QTextMarkdownImporter(&doc, QTextMarkdownImporter::DialectGitHub).import(md);
QTextFrame::iterator iterator = doc.rootFrame()->begin();
QTextFrame *currentFrame = iterator.currentFrame();
int i = 0;
@ -423,7 +423,7 @@ void tst_QTextMarkdownImporter::avoidBlankLineAtBeginning() // QTBUG-81060
QFETCH(int, expectedNumberOfParagraphs);
QTextDocument doc;
QTextMarkdownImporter(QTextMarkdownImporter::DialectGitHub).import(&doc, input);
QTextMarkdownImporter(&doc, QTextMarkdownImporter::DialectGitHub).import(input);
QTextFrame::iterator iterator = doc.rootFrame()->begin();
int i = 0;
while (!iterator.atEnd()) {
@ -468,7 +468,7 @@ void tst_QTextMarkdownImporter::fragmentsAndProperties()
QFETCH(int, expectedNumberOfFragments);
QTextDocument doc;
QTextMarkdownImporter(QTextMarkdownImporter::DialectGitHub).import(&doc, input);
QTextMarkdownImporter(&doc, QTextMarkdownImporter::DialectGitHub).import(input);
#ifdef DEBUG_WRITE_HTML
{
QFile out("/tmp/" + QLatin1String(QTest::currentDataTag()) + ".html");