first attempt at a combobox

Signed-off-by: Trial97 <alexandru.tripon97@gmail.com>

launcher/ui/widgets/CheckComboBox.h

@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (c) 2023 Trial97 <alexandru.tripon97@gmail.com>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <qlineedit.h>
+#include <QComboBox>
+
+class CheckComboBox : public QComboBox {
+    Q_OBJECT
+
+   public:
+    explicit CheckComboBox(QWidget* parent = nullptr);
+    virtual ~CheckComboBox() = default;
+
+    virtual void hidePopup() override;
+
+    QString defaultText() const;
+    void setDefaultText(const QString& text);
+
+    Qt::CheckState itemCheckState(int index) const;
+    void setItemCheckState(int index, Qt::CheckState state);
+
+    QString separator() const;
+    void setSeparator(const QString& separator);
+
+    QStringList checkedItems() const;
+
+    virtual void setModel(QAbstractItemModel* model) override;
+
+   public slots:
+    void setCheckedItems(const QStringList& items);
+
+   signals:
+    void checkedItemsChanged(const QStringList& items);
+
+   private:
+    void updateCheckedItems();
+    bool eventFilter(QObject* receiver, QEvent* event) override;
+    void toggleCheckState(int index);
+
+   private:
+    QString m_default_text;
+    QString m_separator;
+    bool containerMousePress;
+};