1 files changed, 90 insertions, 0 deletions
diff --git a/contrib/examples/highlighter/gui/highlight.cpp b/contrib/examples/highlighter/gui/highlight.cpp
new file mode 100644
index 0000000..a95857b
--- /dev/null
+++ b/contrib/examples/highlighter/gui/highlight.cpp
@@ -0,0 +1,90 @@
+#include <QApplication>
+#include <QPlainTextEdit>
+#include <QPalette>
+#include <QFontDatabase>
+#include <QVBoxLayout>
+#include <QPushButton>
+
+extern "C" {
+#include "../highlighter.h"
+}
+
+static QColor colormap[] = {
+	[HighlightSection] = QColor("#ababab"),
+	[HighlightField] = QColor("#70c0b1"),
+	[HighlightPrivateKey] = QColor("#7aa6da"),
+	[HighlightPublicKey] = QColor("#7aa6da"),
+	[HighlightPresharedKey] = QColor("#7aa6da"),
+	[HighlightIP] = QColor("#b9ca4a"),
+	[HighlightCidr] = QColor("#e78c45"),
+	[HighlightHost] = QColor("#b9ca4a"),
+	[HighlightPort] = QColor("#e78c45"),
+	[HighlightMTU] = QColor("#c397d8"),
+	[HighlightKeepalive] = QColor("#c397d8"),
+	[HighlightComment] = QColor("#969896"),
+	[HighlightDelimiter] = QColor("#7aa6da"),
+#ifndef MOBILE_WGQUICK_SUBSET
+	[HighlightTable] = QColor("#c397d8"),
+	[HighlightFwMark] = QColor("#c397d8"),
+	[HighlightSaveConfig] = QColor("#c397d8"),
+	[HighlightCmd] = QColor("#969896"),
+#endif
+	[HighlightError] = QColor("#d54e53")
+};
+
+int main(int argc, char *argv[])
+{
+	QApplication a(argc, argv);
+	QWidget w;
+	w.setWindowTitle(QObject::tr("WireGuard Configuration Highlighter"));
+	QVBoxLayout v;
+	w.setLayout(&v);
+	QPlainTextEdit e;
+	v.addWidget(&e);
+	QPalette p(e.palette());
+	p.setColor(QPalette::Base, QColor("#010101"));
+	p.setColor(QPalette::Text, QColor("#eaeaea"));
+	e.setPalette(p);
+	QFont f(QFontDatabase::systemFont(QFontDatabase::FixedFont));
+	f.setPointSize(16);
+	e.setFont(f);
+	e.setMinimumSize(400, 500);
+	bool guard = false;
+	QObject::connect(&e, &QPlainTextEdit::textChanged, [&]() {
+		if (guard)
+			return;
+		struct highlight_span *spans = highlight_config(e.toPlainText().toLatin1().data());
+		if (!spans)
+			return;
+		QTextCursor cursor(e.document());
+		QTextCharFormat format;
+		cursor.beginEditBlock();
+		cursor.movePosition(QTextCursor::Start, QTextCursor::MoveAnchor);
+		cursor.movePosition(QTextCursor::End, QTextCursor::KeepAnchor);
+		format.setForeground(p.color(QPalette::Text));
+		format.setUnderlineStyle(QTextCharFormat::NoUnderline);
+		cursor.mergeCharFormat(format);
+		for (struct highlight_span *span = spans; span->type != HighlightEnd; ++span) {
+			cursor.movePosition(QTextCursor::Start, QTextCursor::MoveAnchor);
+			cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::MoveAnchor, span->start);
+			cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, span->len);
+			format.setForeground(colormap[span->type]);
+			format.setUnderlineStyle(span->type == HighlightError ? QTextCharFormat::SpellCheckUnderline : QTextCharFormat::NoUnderline);
+			cursor.mergeCharFormat(format);
+		}
+		free(spans);
+		guard = true;
+		cursor.endEditBlock();
+		guard = false;
+	});
+	QPushButton b;
+	v.addWidget(&b);
+	b.setText(QObject::tr("&Randomize colors"));
+	QObject::connect(&b, &QPushButton::clicked, [&]() {
+		for (size_t i = 0; i < sizeof(colormap) / sizeof(colormap[0]); ++i)
+			colormap[i] = QColor::fromHsl(qrand() % 360, qrand() % 192 + 64, qrand() % 128 + 128);
+		e.setPlainText(e.toPlainText());
+	});
+	w.show();
+	return a.exec();
+}