add context panel

app/gcompose/src/ContextModel.h

@@ -0,0 +1,26 @@
+#ifndef CONTEXT_MODEL_H
+#define CONTEXT_MODEL_H
+
+#include <QAbstractItemModel>
+#include "Core/ObjectsContext.h"
+
+class ContextModel : public QAbstractItemModel {
+    Q_OBJECT
+public:
+    explicit ContextModel(QObject* parent = nullptr);
+    virtual ~ContextModel();
+
+    void setContext(uLib::ObjectsContext* context);
+
+    QModelIndex index(int row, int column, const QModelIndex& parent = QModelIndex()) const override;
+    QModelIndex parent(const QModelIndex& child) const override;
+    int rowCount(const QModelIndex& parent = QModelIndex()) const override;
+    int columnCount(const QModelIndex& parent = QModelIndex()) const override;
+    QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override;
+    QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
+
+private:
+    uLib::ObjectsContext* m_rootContext;
+};
+
+#endif // CONTEXT_MODEL_H