Clang: Use more generic methods in OverviewModel

Do not return Document or Symbol. Instead use Link
or LineColumn directly as return values.

Change-Id: I1863d7c3b4985ffe2ae5454622227075ebdc2de7
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>

src/plugins/cppeditor/cppoutline.cpp

@@ -33,6 +33,8 @@
 
 #include <coreplugin/find/itemviewfind.h>
 #include <coreplugin/editormanager/editormanager.h>
+
+#include <utils/linecolumn.h>
 #include <utils/qtcassert.h>
 
 #include <QDebug>
@@ -67,7 +69,7 @@ void CppOutlineTreeView::contextMenuEvent(QContextMenuEvent *event)
     event->accept();
 }
 
-CppOutlineFilterModel::CppOutlineFilterModel(CppTools::AbstractOverviewModel *sourceModel,
+CppOutlineFilterModel::CppOutlineFilterModel(CppTools::AbstractOverviewModel &sourceModel,
                                              QObject *parent)
     : QSortFilterProxyModel(parent)
     , m_sourceModel(sourceModel)
@@ -81,9 +83,8 @@ bool CppOutlineFilterModel::filterAcceptsRow(int sourceRow,
     if (!sourceParent.isValid() && sourceRow == 0)
         return false;
     // ignore generated symbols, e.g. by macro expansion (Q_OBJECT)
-    const QModelIndex sourceIndex = m_sourceModel->index(sourceRow, 0, sourceParent);
-    CPlusPlus::Symbol *symbol = m_sourceModel->symbolFromIndex(sourceIndex);
-    if (symbol && symbol->isGenerated())
+    const QModelIndex sourceIndex = m_sourceModel.index(sourceRow, 0, sourceParent);
+    if (m_sourceModel.isGenerated(sourceIndex))
         return false;
 
     return QSortFilterProxyModel::filterAcceptsRow(sourceRow, sourceParent);
@@ -96,15 +97,14 @@ Qt::DropActions CppOutlineFilterModel::supportedDragActions() const
 
 
 CppOutlineWidget::CppOutlineWidget(CppEditorWidget *editor) :
-    TextEditor::IOutlineWidget(),
     m_editor(editor),
     m_treeView(new CppOutlineTreeView(this)),
-    m_model(m_editor->outline()->model()),
     m_enableCursorSync(true),
     m_blockCursorSync(false)
 {
-    m_proxyModel = new CppOutlineFilterModel(m_model, this);
-    m_proxyModel->setSourceModel(m_model);
+    CppTools::AbstractOverviewModel *model = m_editor->outline()->model();
+    m_proxyModel = new CppOutlineFilterModel(*model, this);
+    m_proxyModel->setSourceModel(model);
 
     auto *layout = new QVBoxLayout;
     layout->setMargin(0);
@@ -115,7 +115,7 @@ CppOutlineWidget::CppOutlineWidget(CppEditorWidget *editor) :
     m_treeView->setModel(m_proxyModel);
     setFocusProxy(m_treeView);
 
-    connect(m_model, &QAbstractItemModel::modelReset, this, &CppOutlineWidget::modelUpdated);
+    connect(model, &QAbstractItemModel::modelReset, this, &CppOutlineWidget::modelUpdated);
     modelUpdated();
 
     connect(m_editor->outline(), &CppTools::CppEditorOutline::modelIndexChanged,
@@ -157,19 +157,20 @@ void CppOutlineWidget::updateSelectionInTree(const QModelIndex &index)
 void CppOutlineWidget::updateTextCursor(const QModelIndex &proxyIndex)
 {
     QModelIndex index = m_proxyModel->mapToSource(proxyIndex);
-    CPlusPlus::Symbol *symbol = m_model->symbolFromIndex(index);
-    if (symbol) {
+    CppTools::AbstractOverviewModel *model = m_editor->outline()->model();
+    Utils::LineColumn lineColumn = model->lineColumnFromIndex(index);
+    if (!lineColumn.isValid())
+        return;
+
     m_blockCursorSync = true;
 
     Core::EditorManager::cutForwardNavigationHistory();
     Core::EditorManager::addCurrentPositionToNavigationHistory();
 
     // line has to be 1 based, column 0 based!
-        m_editor->gotoLine(static_cast<int>(symbol->line()), static_cast<int>(symbol->column() - 1),
-                           true, true);
+    m_editor->gotoLine(lineColumn.line, lineColumn.column - 1, true, true);
     m_blockCursorSync = false;
 }
-}
 
 void CppOutlineWidget::onItemActivated(const QModelIndex &index)
 {

src/plugins/cppeditor/cppoutline.h

@@ -51,13 +51,13 @@ class CppOutlineFilterModel : public QSortFilterProxyModel
 {
     Q_OBJECT
 public:
-    CppOutlineFilterModel(CppTools::AbstractOverviewModel *sourceModel, QObject *parent);
+    CppOutlineFilterModel(CppTools::AbstractOverviewModel &sourceModel, QObject *parent);
     // QSortFilterProxyModel
     bool filterAcceptsRow(int sourceRow,
                           const QModelIndex &sourceParent) const override;
     Qt::DropActions supportedDragActions() const override;
 private:
-    CppTools::AbstractOverviewModel *m_sourceModel;
+    CppTools::AbstractOverviewModel &m_sourceModel;
 };
 
 class CppOutlineWidget : public TextEditor::IOutlineWidget
@@ -80,7 +80,6 @@ private:
 private:
     CppEditorWidget *m_editor;
     CppOutlineTreeView *m_treeView;
-    CppTools::AbstractOverviewModel *m_model;
     QSortFilterProxyModel *m_proxyModel;
 
     bool m_enableCursorSync;

src/plugins/cpptools/abstractoverviewmodel.h

@@ -32,9 +32,11 @@
 #include <QAbstractItemModel>
 #include <QSharedPointer>
 
-namespace CPlusPlus {
-class Document;
-class Symbol;
+namespace CPlusPlus { class Document; }
+
+namespace Utils {
+class LineColumn;
+struct Link;
 }
 
 namespace CppTools {
@@ -49,17 +51,7 @@ public:
         LineNumberRole
     };
 
-    AbstractOverviewModel(QObject *parent = nullptr) : QAbstractItemModel(parent) {}
-
-    virtual QSharedPointer<CPlusPlus::Document> document() const
-    {
-        return {};
-    }
-
-    virtual CPlusPlus::Symbol *symbolFromIndex(const QModelIndex &) const
-    {
-        return {};
-    }
+    AbstractOverviewModel() : QAbstractItemModel(nullptr) {}
 
     virtual void rebuild(QSharedPointer<CPlusPlus::Document>) {}
 
@@ -95,6 +87,10 @@ public:
         }
         return mimeData;
     }
+
+    virtual bool isGenerated(const QModelIndex &) const { return false; }
+    virtual Utils::Link linkFromIndex(const QModelIndex &) const = 0;
+    virtual Utils::LineColumn lineColumnFromIndex(const QModelIndex &) const = 0;
 };
 
 } // namespace CppTools

src/plugins/cpptools/cppeditoroutline.cpp

@@ -24,7 +24,6 @@
 ****************************************************************************/
 
 #include "cppeditoroutline.h"
-
 #include "cppmodelmanager.h"
 #include "cppoverviewmodel.h"
 #include "cpptoolsreuse.h"
@@ -34,6 +33,7 @@
 #include <texteditor/textdocument.h>
 #include <coreplugin/editormanager/editormanager.h>
 
+#include <utils/linecolumn.h>
 #include <utils/treeviewcombobox.h>
 
 #include <QAction>
@@ -57,7 +57,7 @@ class OverviewProxyModel : public QSortFilterProxyModel
     Q_OBJECT
 
 public:
-    OverviewProxyModel(CppTools::AbstractOverviewModel *sourceModel, QObject *parent)
+    OverviewProxyModel(CppTools::AbstractOverviewModel &sourceModel, QObject *parent)
         : QSortFilterProxyModel(parent)
         , m_sourceModel(sourceModel)
     {
@@ -66,15 +66,14 @@ public:
     bool filterAcceptsRow(int sourceRow,const QModelIndex &sourceParent) const override
     {
         // Ignore generated symbols, e.g. by macro expansion (Q_OBJECT)
-        const QModelIndex sourceIndex = m_sourceModel->index(sourceRow, 0, sourceParent);
-        CPlusPlus::Symbol *symbol = m_sourceModel->symbolFromIndex(sourceIndex);
-        if (symbol && symbol->isGenerated())
+        const QModelIndex sourceIndex = m_sourceModel.index(sourceRow, 0, sourceParent);
+        if (m_sourceModel.isGenerated(sourceIndex))
             return false;
 
         return QSortFilterProxyModel::filterAcceptsRow(sourceRow, sourceParent);
     }
 private:
-    CppTools::AbstractOverviewModel *m_sourceModel;
+    CppTools::AbstractOverviewModel &m_sourceModel;
 };
 
 QTimer *newSingleShotTimer(QObject *parent, int msInternal, const QString &objectName)
@@ -95,9 +94,9 @@ CppEditorOutline::CppEditorOutline(TextEditor::TextEditorWidget *editorWidget)
     , m_editorWidget(editorWidget)
     , m_combo(new Utils::TreeViewComboBox)
 {
-    m_model = new CppTools::OverviewModel(this);
-    m_proxyModel = new OverviewProxyModel(m_model, this);
-    m_proxyModel->setSourceModel(m_model);
+    m_model = std::make_unique<CppTools::OverviewModel>();
+    m_proxyModel = new OverviewProxyModel(*m_model, this);
+    m_proxyModel->setSourceModel(m_model.get());
 
     // Set up proxy model
     if (CppTools::CppToolsSettings::instance()->sortedEditorDocumentOutline())
@@ -167,7 +166,7 @@ void CppEditorOutline::setSorted(bool sort)
 
 CppTools::AbstractOverviewModel *CppEditorOutline::model() const
 {
-    return m_model;
+    return m_model.get();
 }
 
 QModelIndex CppEditorOutline::modelIndex()
@@ -196,13 +195,14 @@ void CppEditorOutline::updateNow()
     if (!document)
         return;
 
-    if (document->editorRevision()
+    m_document = document;
+    if (m_document->editorRevision()
             != static_cast<unsigned>(m_editorWidget->document()->revision())) {
         m_updateTimer->start();
         return;
     }
 
-    m_model->rebuild(document);
+    m_model->rebuild(m_document);
 
     m_combo->view()->expandAll();
     updateIndexNow();
@@ -215,12 +215,11 @@ void CppEditorOutline::updateIndex()
 
 void CppEditorOutline::updateIndexNow()
 {
-    const CPlusPlus::Document::Ptr document = m_model->document();
-    if (!document)
+    if (!m_document)
         return;
 
     const auto revision = static_cast<unsigned>(m_editorWidget->document()->revision());
-    if (document->editorRevision() != revision) {
+    if (m_document->editorRevision() != revision) {
         m_updateIndexTimer->start();
         return;
     }
@@ -246,11 +245,8 @@ void CppEditorOutline::gotoSymbolInEditor()
 {
     const QModelIndex modelIndex = m_combo->view()->currentIndex();
     const QModelIndex sourceIndex = m_proxyModel->mapToSource(modelIndex);
-    CPlusPlus::Symbol *symbol = m_model->symbolFromIndex(sourceIndex);
-    if (!symbol)
-        return;
 
-    const Utils::Link &link = symbol->toLink();
+    const Utils::Link link = m_model->linkFromIndex(sourceIndex);
     if (!link.hasValidTarget())
         return;
 
@@ -264,12 +260,10 @@ QModelIndex CppEditorOutline::indexForPosition(int line, int column,
                                                const QModelIndex &rootIndex) const
 {
     QModelIndex lastIndex = rootIndex;
-
     const int rowCount = m_model->rowCount(rootIndex);
     for (int row = 0; row < rowCount; ++row) {
         const QModelIndex index = m_model->index(row, 0, rootIndex);
-        CPlusPlus::Symbol *symbol = m_model->symbolFromIndex(index);
-        if (symbol && symbol->line() > unsigned(line))
+        if (m_model->lineColumnFromIndex(index).line > line)
             break;
         lastIndex = index;
     }

src/plugins/cpptools/cppeditoroutline.h

@@ -32,6 +32,8 @@
 #include <QModelIndex>
 #include <QObject>
 
+#include <memory>
+
 QT_BEGIN_NAMESPACE
 class QAction;
 class QSortFilterProxyModel;
@@ -77,10 +79,12 @@ private:
                                  const QModelIndex &rootIndex = QModelIndex()) const;
 
 private:
+    QSharedPointer<CPlusPlus::Document> m_document;
+    std::unique_ptr<AbstractOverviewModel> m_model;
+
     TextEditor::TextEditorWidget *m_editorWidget;
 
     Utils::TreeViewComboBox *m_combo; // Not owned
-    AbstractOverviewModel *m_model;
     QSortFilterProxyModel *m_proxyModel;
     QModelIndex m_modelIndex;
     QAction *m_sortAction;

src/plugins/cpptools/cppoverviewmodel.cpp

@@ -31,28 +31,17 @@
 #include <cplusplus/Scope.h>
 #include <cplusplus/Symbols.h>
 
-#include <utils/dropsupport.h>
+#include <utils/linecolumn.h>
+#include <utils/link.h>
 
 using namespace CPlusPlus;
 namespace CppTools {
 
-OverviewModel::OverviewModel(QObject *parent)
-    : AbstractOverviewModel(parent)
-{ }
-
-OverviewModel::~OverviewModel()
-{ }
-
 bool OverviewModel::hasDocument() const
 {
     return _cppDocument;
 }
 
-Document::Ptr OverviewModel::document() const
-{
-    return _cppDocument;
-}
-
 unsigned OverviewModel::globalSymbolCount() const
 {
     unsigned count = 0;
@@ -250,4 +239,30 @@ void OverviewModel::rebuild(Document::Ptr doc)
     endResetModel();
 }
 
+bool OverviewModel::isGenerated(const QModelIndex &sourceIndex) const
+{
+    CPlusPlus::Symbol *symbol = symbolFromIndex(sourceIndex);
+    return symbol && symbol->isGenerated();
+}
+
+Utils::Link OverviewModel::linkFromIndex(const QModelIndex &sourceIndex) const
+{
+    CPlusPlus::Symbol *symbol = symbolFromIndex(sourceIndex);
+    if (!symbol)
+        return {};
+
+    return symbol->toLink();
+}
+
+Utils::LineColumn OverviewModel::lineColumnFromIndex(const QModelIndex &sourceIndex) const
+{
+    Utils::LineColumn lineColumn;
+    CPlusPlus::Symbol *symbol = symbolFromIndex(sourceIndex);
+    if (!symbol)
+        return lineColumn;
+    lineColumn.line = static_cast<int>(symbol->line());
+    lineColumn.column = static_cast<int>(symbol->column());
+    return lineColumn;
+}
+
 } // namespace CppTools

src/plugins/cpptools/cppoverviewmodel.h

@@ -37,9 +37,6 @@ class CPPTOOLS_EXPORT OverviewModel : public AbstractOverviewModel
     Q_OBJECT
 
 public:
-    OverviewModel(QObject *parent = nullptr);
-    ~OverviewModel() override;
-
     QModelIndex index(int row, int column,
                       const QModelIndex &parent = QModelIndex()) const override;
     QModelIndex parent(const QModelIndex &child) const override;
@@ -47,12 +44,14 @@ public:
     int columnCount(const QModelIndex &parent = QModelIndex()) const override;
     QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
 
-    CPlusPlus::Document::Ptr document() const override;
-    CPlusPlus::Symbol *symbolFromIndex(const QModelIndex &index) const override;
-
     void rebuild(CPlusPlus::Document::Ptr doc) override;
 
+    bool isGenerated(const QModelIndex &sourceIndex) const override;
+    Utils::Link linkFromIndex(const QModelIndex &sourceIndex) const override;
+    Utils::LineColumn lineColumnFromIndex(const QModelIndex &sourceIndex) const override;
+
 private:
+    CPlusPlus::Symbol *symbolFromIndex(const QModelIndex &index) const;
     bool hasDocument() const;
     unsigned globalSymbolCount() const;
     CPlusPlus::Symbol *globalSymbolAt(unsigned index) const;