refactor: Restructure project into sources/tests layout and dissolve PluginLLMCore

sources/widgets/CompletionHintHandler.cpp

@@ -0,0 +1,57 @@
+// Copyright (C) 2025-2026 Petr Mironychev
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Additional attribution terms under GPLv3 §7(b) apply — see LICENSE
+
+#include "CompletionHintHandler.hpp"
+#include "CompletionHintWidget.hpp"
+
+#include <texteditor/texteditor.h>
+
+namespace QodeAssist {
+
+CompletionHintHandler::CompletionHintHandler() = default;
+
+CompletionHintHandler::~CompletionHintHandler()
+{
+    hideHint();
+}
+
+void CompletionHintHandler::showHint(TextEditor::TextEditorWidget *widget, QPoint position, int fontSize)
+{
+    if (!widget) {
+        return;
+    }
+
+    if (!m_hintWidget) {
+        m_hintWidget = new CompletionHintWidget(widget, fontSize);
+    }
+
+    m_hintWidget->move(position);
+    m_hintWidget->show();
+    m_hintWidget->raise();
+}
+
+void CompletionHintHandler::hideHint()
+{
+    if (m_hintWidget) {
+        m_hintWidget->deleteLater();
+        m_hintWidget = nullptr;
+    }
+}
+
+bool CompletionHintHandler::isHintVisible() const
+{
+    return !m_hintWidget.isNull() && m_hintWidget->isVisible();
+}
+
+void CompletionHintHandler::updateHintPosition(TextEditor::TextEditorWidget *widget, QPoint position)
+{
+    if (!widget || !m_hintWidget) {
+        return;
+    }
+
+    m_hintWidget->move(position);
+}
+
+} // namespace QodeAssist
+