fear: Add hint-trigger for call code completion (#266)

widgets/CompletionHintHandler.hpp

@@ -0,0 +1,49 @@
+/* 
+ * Copyright (C) 2025 Petr Mironychev
+ *
+ * This file is part of QodeAssist.
+ *
+ * QodeAssist 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, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QodeAssist 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 QodeAssist. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <QPointer>
+#include <functional>
+
+namespace TextEditor {
+class TextEditorWidget;
+}
+
+namespace QodeAssist {
+
+class CompletionHintWidget;
+
+class CompletionHintHandler
+{
+public:
+    CompletionHintHandler();
+    ~CompletionHintHandler();
+
+    void showHint(TextEditor::TextEditorWidget *widget, QPoint position, int fontSize);
+    void hideHint();
+    bool isHintVisible() const;
+    void updateHintPosition(TextEditor::TextEditorWidget *widget, QPoint position);
+
+private:
+    QPointer<CompletionHintWidget> m_hintWidget;
+};
+
+} // namespace QodeAssist
+