C++ (Cpp) EditorManager::currentEditor Exemples

Exemple #1

// TODO: Can this be improved? This code is ripped from CppEditor, especially CppElementEvaluater
// We cannot depend on this since CppEditor plugin code is internal and requires building the implementation files ourselves
CPlusPlus::Symbol *AnalyzerUtils::findSymbolUnderCursor()
{
    EditorManager *editorManager = EditorManager::instance();
    if (!editorManager)
        return 0;
    IEditor *editor = editorManager->currentEditor();
    if (!editor)
        return 0;
    TextEditor::ITextEditor *textEditor = qobject_cast<TextEditor::ITextEditor *>(editor);
    if (!textEditor)
        return 0;
    TextEditor::BaseTextEditorWidget *editorWidget = qobject_cast<TextEditor::BaseTextEditorWidget *>(editor->widget());
    if (!editorWidget)
        return 0;

    QPlainTextEdit *ptEdit = qobject_cast<QPlainTextEdit *>(editor->widget());
    if (!ptEdit)
        return 0;

    QTextCursor tc;
    tc = ptEdit->textCursor();
    int line = 0;
    int column = 0;
    const int pos = tc.position();
    editorWidget->convertPosition(pos, &line, &column);

    const CPlusPlus::Snapshot &snapshot = CPlusPlus::CppModelManagerInterface::instance()->snapshot();
    CPlusPlus::Document::Ptr doc = snapshot.document(editor->document()->fileName());
    QTC_ASSERT(doc, return 0)

    // fetch the expression's code
    CPlusPlus::ExpressionUnderCursor expressionUnderCursor;
    moveCursorToEndOfName(&tc);
    const QString &expression = expressionUnderCursor(tc);
    CPlusPlus::Scope *scope = doc->scopeAt(line, column);

    CPlusPlus::TypeOfExpression typeOfExpression;
    typeOfExpression.init(doc, snapshot);
    const QList<CPlusPlus::LookupItem> &lookupItems = typeOfExpression(expression.toUtf8(), scope);
    if (lookupItems.isEmpty())
        return 0;

    const CPlusPlus::LookupItem &lookupItem = lookupItems.first(); // ### TODO: select best candidate.
    return lookupItem.declaration();
}