Support Outline sidebar for C++ files

src/plugins/cppeditor/cppoutline.h

@@ -0,0 +1,72 @@
+#ifndef CPPOUTLINE_H
+#define CPPOUTLINE_H
+
+#include "cppeditor.h"
+
+#include <texteditor/ioutlinewidget.h>
+
+#include <QtGui/QSortFilterProxyModel>
+#include <QtGui/QTreeView>
+
+namespace CppEditor {
+namespace Internal {
+
+class CppOutlineTreeView : public QTreeView
+{
+    Q_OBJECT
+public:
+    CppOutlineTreeView(QWidget *parent);
+};
+
+class CppOutlineFilterModel : public QSortFilterProxyModel
+{
+    Q_OBJECT
+public:
+    CppOutlineFilterModel(QObject *parent);
+    // QSortFilterProxyModel
+    bool filterAcceptsRow(int sourceRow,
+                          const QModelIndex &sourceParent) const;
+};
+
+class CppOutlineWidget : public TextEditor::IOutlineWidget
+{
+    Q_OBJECT
+public:
+    CppOutlineWidget(CPPEditor *editor);
+
+    // IOutlineWidget
+    virtual void setCursorSynchronization(bool syncWithCursor);
+
+private slots:
+    void updateOutline(CPlusPlus::Document::Ptr document);
+    void updateSelectionInTree();
+    void updateSelectionInText(const QItemSelection &selection);
+
+private:
+    QModelIndex indexForPosition(const QModelIndex &rootIndex, int line, int column);
+    bool positionInsideSymbol(unsigned cursorLine, unsigned cursorColumn, CPlusPlus::Symbol *symbol) const;
+    bool syncCursor();
+
+private:
+    CPPEditor *m_editor;
+    CppOutlineTreeView *m_treeView;
+    CPlusPlus::OverviewModel *m_model;
+    CppOutlineFilterModel *m_proxyModel;
+    CPlusPlus::Document::Ptr m_document;
+
+    bool m_enableCursorSync;
+    bool m_blockCursorSync;
+};
+
+class CppOutlineWidgetFactory : public TextEditor::IOutlineWidgetFactory
+{
+    Q_OBJECT
+public:
+    bool supportsEditor(Core::IEditor *editor) const;
+    TextEditor::IOutlineWidget *createWidget(Core::IEditor *editor);
+};
+
+} // namespace Internal
+} // namespace CppEditor
+
+#endif // CPPOUTLINE_H