Utils::NavigationTreeView is created - as a base class for any Navigation Widget (Side Bar) tree view

Merge-request: 2167
Reviewed-by: Kai Koehne <kai.koehne@nokia.com>

src/libs/utils/navigationtreeview.cpp

@@ -0,0 +1,79 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://qt.nokia.com/contact.
+**
+**************************************************************************/
+
+#include "navigationtreeview.h"
+
+#include <QtGui/QFocusEvent>
+
+#ifdef Q_WS_MAC
+#include <QtGui/QKeyEvent>
+#endif
+
+namespace Utils {
+
+NavigationTreeView::NavigationTreeView(QWidget *parent)
+    : QTreeView(parent)
+{
+    setFrameStyle(QFrame::NoFrame);
+    setIndentation(indentation() * 9/10);
+    setUniformRowHeights(true);
+    setTextElideMode(Qt::ElideNone);
+    setAttribute(Qt::WA_MacShowFocusRect, false);
+}
+
+// This is a workaround to stop Qt from redrawing the project tree every
+// time the user opens or closes a menu when it has focus. Would be nicer to
+// fix it in Qt.
+void NavigationTreeView::focusInEvent(QFocusEvent *event)
+{
+    if (event->reason() != Qt::PopupFocusReason)
+        QTreeView::focusInEvent(event);
+}
+
+void NavigationTreeView::focusOutEvent(QFocusEvent *event)
+{
+    if (event->reason() != Qt::PopupFocusReason)
+        QTreeView::focusOutEvent(event);
+}
+
+#ifdef Q_WS_MAC
+void NavigationTreeView::keyPressEvent(QKeyEvent *event)
+{
+    if ((event->key() == Qt::Key_Return
+            || event->key() == Qt::Key_Enter)
+            && event->modifiers() == 0
+            && currentIndex().isValid()) {
+        emit activated(currentIndex());
+        return;
+    }
+    QTreeView::keyPressEvent(event);
+}
+#endif
+
+} // namespace Utils