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Markdown: Reuse Markdown highlighter from change log viewer

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Change-Id: Ief1b0c135a34bfd5e9b5220e9fbf93f281d8e95a
Reviewed-by: David Schulz <david.schulz@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
This commit is contained in:
Eike Ziller
2023-04-19 11:03:58 +02:00
parent 8175f96e50
commit a353e9fde1
5 changed files with 80 additions and 69 deletions
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64
src/plugins/coreplugin/mainwindow.cpp
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@@ -1384,67 +1384,6 @@ public:
}
};
class MarkdownHighlighter : public QSyntaxHighlighter
{
QBrush h2Brush;
public:
MarkdownHighlighter(QTextDocument *parent)
: QSyntaxHighlighter(parent)
, h2Brush(Qt::NoBrush)
{
parent->setIndentWidth(30); // default value is 40
}
void highlightBlock(const QString &text)
{
if (text.isEmpty())
return;
QTextBlockFormat fmt = currentBlock().blockFormat();
QTextCursor cur(currentBlock());
if (fmt.hasProperty(QTextFormat::HeadingLevel)) {
fmt.setTopMargin(10);
fmt.setBottomMargin(10);
// Draw an underline for Heading 2, by creating a texture brush
// with the last pixel visible
if (fmt.property(QTextFormat::HeadingLevel) == 2) {
QTextCharFormat charFmt = currentBlock().charFormat();
charFmt.setBaselineOffset(15);
setFormat(0, text.length(), charFmt);
if (h2Brush.style() == Qt::NoBrush) {
const int height = QFontMetrics(charFmt.font()).height();
QImage image(1, height, QImage::Format_ARGB32);
image.fill(QColor(0, 0, 0, 0).rgba());
image.setPixel(0,
height - 1,
Utils::creatorTheme()->color(Theme::TextColorDisabled).rgba());
h2Brush = QBrush(image);
}
fmt.setBackground(h2Brush);
}
cur.setBlockFormat(fmt);
} else if (fmt.hasProperty(QTextFormat::BlockCodeLanguage) && fmt.indent() == 0) {
// set identation for code blocks
fmt.setIndent(1);
cur.setBlockFormat(fmt);
}
// Show the bulet points as filled circles
QTextList *list = cur.currentList();
if (list) {
QTextListFormat listFmt = list->format();
if (listFmt.indent() == 1 && listFmt.style() == QTextListFormat::ListCircle) {
listFmt.setStyle(QTextListFormat::ListDisc);
list->setFormat(listFmt);
}
}
}
};
void MainWindow::changeLog()
{
static QPointer<LogDialog> dialog;
@@ -1484,8 +1423,7 @@ void MainWindow::changeLog()
aggregate->add(textEdit);
aggregate->add(new Core::BaseTextFind(textEdit));
auto highlighter = new MarkdownHighlighter(textEdit->document());
(void)highlighter;
new MarkdownHighlighter(textEdit->document());
auto textEditWidget = new QFrame;
textEditWidget->setFrameStyle(QFrame::NoFrame);