Meson: Flatten directory hierarchy

Keep tests/ and icons/ but put the rest into the toplevel.

The previous setup was so different from the rest of the bunch that
it regularly stuck out in maintenance tasks.

Change-Id: I69821be6268f69682353a388f6bb1fa343215303
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

src/plugins/mesonprojectmanager/arrayoptionlineedit.cpp

@@ -0,0 +1,69 @@
+// Copyright (C) 2020 Alexis Jeandet.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
+
+#include "arrayoptionlineedit.h"
+
+namespace MesonProjectManager {
+namespace Internal {
+
+ArrayOptionLineEdit::ArrayOptionLineEdit(QWidget *parent)
+    : QPlainTextEdit(parent)
+{
+    m_highLighter = new RegexHighlighter(this);
+    m_highLighter->setDocument(this->document());
+    setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    setLineWrapMode(QPlainTextEdit::NoWrap);
+    QFontMetrics metrics(this->font());
+    int lineHeight = metrics.lineSpacing();
+    this->setFixedHeight(lineHeight * 1.5);
+}
+
+QStringList ArrayOptionLineEdit::options()
+{
+    return m_highLighter->options(this->toPlainText());
+}
+
+void ArrayOptionLineEdit::keyPressEvent(QKeyEvent *e)
+{
+    if (e->key() != Qt::Key_Return)
+        return QPlainTextEdit::keyPressEvent(e);
+    e->accept();
+}
+
+RegexHighlighter::RegexHighlighter(QWidget *parent)
+    : QSyntaxHighlighter(parent)
+{
+    m_format.setUnderlineStyle(QTextCharFormat::SingleUnderline);
+    m_format.setUnderlineColor(QColor(180, 180, 180));
+    m_format.setBackground(QBrush(QColor(180, 180, 230, 80)));
+}
+
+QStringList RegexHighlighter::options(const QString &text)
+{
+    QRegularExpressionMatchIterator i = m_regex.globalMatch(text);
+    QStringList op;
+    while (i.hasNext()) {
+        QRegularExpressionMatch match = i.next();
+        for (int j = 1; j <= match.lastCapturedIndex(); j++) {
+            auto str = match.captured(j);
+            if (!str.isEmpty())
+                op.push_back(str);
+        }
+    }
+    return op;
+}
+
+void RegexHighlighter::highlightBlock(const QString &text)
+{
+    QRegularExpressionMatchIterator i = m_regex.globalMatch(text);
+    while (i.hasNext()) {
+        QRegularExpressionMatch match = i.next();
+        for (int j = 1; j <= match.lastCapturedIndex(); j++) {
+            setFormat(match.capturedStart(j), match.capturedLength(j), m_format);
+        }
+    }
+}
+
+} // namespace Internal
+} // namespace MesonProjectManager