Qml Debugger: Enable debugging qml+cpp standalone applications

A new debugger engine, QmlCppEngine, is introduced, which wraps gdb
and qml engines into one. Alternatively, if using Windows, Cdb is used
instead of Gdb.

Most of the debugger ui switcher is now rewritten, and it is tailored
for the QML and CPP layout case, the only one supported anyway.

Reviewed-by: hjk

src/plugins/qmljsinspector/qmljsobjecttree.h

@@ -0,0 +1,84 @@
+/**************************************************************************
+**
+** 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.
+**
+**************************************************************************/
+#ifndef OBJECTTREE_H
+#define OBJECTTREE_H
+
+#include <qmljsprivateapi.h>
+#include <QtGui/QTreeWidget>
+
+QT_BEGIN_NAMESPACE
+
+class QTreeWidgetItem;
+
+QT_END_NAMESPACE
+
+namespace QmlJSInspector {
+namespace Internal {
+
+class QmlJSObjectTree : public QTreeWidget
+{
+    Q_OBJECT
+public:
+    QmlJSObjectTree(QWidget *parent = 0);
+
+signals:
+    void currentObjectChanged(const QDeclarativeDebugObjectReference &);
+    void activated(const QDeclarativeDebugObjectReference &);
+    void expressionWatchRequested(const QDeclarativeDebugObjectReference &, const QString &);
+    void contextHelpIdChanged(const QString &contextHelpId);
+
+public slots:
+    void reload(int objectDebugId);     // set the root object
+    void setCurrentObject(int debugId); // select an object in the tree
+
+protected:
+    virtual void contextMenuEvent(QContextMenuEvent *);
+
+private slots:
+    void addWatch();
+    void currentItemChanged(QTreeWidgetItem *);
+    void activated(QTreeWidgetItem *);
+    void selectionChanged();
+    void goToFile();
+
+private:
+    QTreeWidgetItem *findItemByObjectId(int debugId) const;
+    QTreeWidgetItem *findItem(QTreeWidgetItem *item, int debugId) const;
+    void buildTree(const QDeclarativeDebugObjectReference &, QTreeWidgetItem *parent);
+
+    QTreeWidgetItem *m_clickedItem;
+    QAction *m_addWatchAction;
+    QAction *m_goToFileAction;
+    int m_currentObjectDebugId;
+};
+
+} // Internal
+} // QmlJSInspector
+
+#endif