From d76f95d30b1c174323bfca982336d96f3a2cebe2 Mon Sep 17 00:00:00 2001
From: Joona Petrell <joona.t.petrell@nokia.com>
Date: Thu, 22 Jul 2010 13:23:39 +1000
Subject: Make rootContext and engine pointers in QDeclarativeView API const

Task-number: QTBUG-12322
Reviewed-by: Aaron Kennedy
(cherry picked from commit 0b83a2161261be525f01359397ab1c8c34827749)
---
 src/declarative/qml/qdeclarativeengine.cpp |  4 ++--
 src/declarative/qml/qdeclarativeengine.h   |  2 +-
 src/declarative/util/qdeclarativeview.cpp  | 19 ++++++++++---------
 src/declarative/util/qdeclarativeview.h    |  4 ++--
 4 files changed, 15 insertions(+), 14 deletions(-)

diff --git a/src/declarative/qml/qdeclarativeengine.cpp b/src/declarative/qml/qdeclarativeengine.cpp
index 559cad1..a31448f 100644
--- a/src/declarative/qml/qdeclarativeengine.cpp
+++ b/src/declarative/qml/qdeclarativeengine.cpp
@@ -545,9 +545,9 @@ void QDeclarativeEngine::clearComponentCache()
   component instances should be added to sub-contexts parented to the
   root context.
 */
-QDeclarativeContext *QDeclarativeEngine::rootContext()
+QDeclarativeContext *QDeclarativeEngine::rootContext() const
 {
-    Q_D(QDeclarativeEngine);
+    Q_D(const QDeclarativeEngine);
     return d->rootContext;
 }
 
diff --git a/src/declarative/qml/qdeclarativeengine.h b/src/declarative/qml/qdeclarativeengine.h
index 01487f5..d971d80 100644
--- a/src/declarative/qml/qdeclarativeengine.h
+++ b/src/declarative/qml/qdeclarativeengine.h
@@ -74,7 +74,7 @@ public:
     QDeclarativeEngine(QObject *p = 0);
     virtual ~QDeclarativeEngine();
 
-    QDeclarativeContext *rootContext();
+    QDeclarativeContext *rootContext() const;
 
     void clearComponentCache();
 
diff --git a/src/declarative/util/qdeclarativeview.cpp b/src/declarative/util/qdeclarativeview.cpp
index 12a8d3a..c3948c1 100644
--- a/src/declarative/util/qdeclarativeview.cpp
+++ b/src/declarative/util/qdeclarativeview.cpp
@@ -132,7 +132,7 @@ class QDeclarativeViewPrivate : public QGraphicsViewPrivate, public QDeclarative
 public:
     QDeclarativeViewPrivate()
         : root(0), declarativeItemRoot(0), graphicsWidgetRoot(0), component(0), resizeMode(QDeclarativeView::SizeViewToRootObject), initialSize(0,0) {}
-    ~QDeclarativeViewPrivate() { delete root; }
+    ~QDeclarativeViewPrivate() { delete root; delete engine; }
     void execute();
     void itemGeometryChanged(QDeclarativeItem *item, const QRectF &newGeometry, const QRectF &oldGeometry);
     void initResize();
@@ -145,7 +145,7 @@ public:
 
     QUrl source;
 
-    QDeclarativeEngine engine;
+    QDeclarativeEngine* engine;
     QDeclarativeComponent *component;
     QBasicTimer resizetimer;
 
@@ -170,7 +170,7 @@ void QDeclarativeViewPrivate::execute()
         component = 0;
     }
     if (!source.isEmpty()) {
-        component = new QDeclarativeComponent(&engine, source, q);
+        component = new QDeclarativeComponent(engine, source, q);
         if (!component->isLoading()) {
             q->continueExecute();
         } else {
@@ -274,6 +274,7 @@ QDeclarativeView::QDeclarativeView(const QUrl &source, QWidget *parent)
 void QDeclarativeViewPrivate::init()
 {
     Q_Q(QDeclarativeView);
+    engine = new QDeclarativeEngine();
     q->setScene(&scene);
 
     q->setOptimizationFlags(QGraphicsView::DontSavePainterState);
@@ -337,10 +338,10 @@ QUrl QDeclarativeView::source() const
   Returns a pointer to the QDeclarativeEngine used for instantiating
   QML Components.
  */
-QDeclarativeEngine* QDeclarativeView::engine()
+QDeclarativeEngine* QDeclarativeView::engine() const
 {
-    Q_D(QDeclarativeView);
-    return &d->engine;
+    Q_D(const QDeclarativeView);
+    return d->engine;
 }
 
 /*!
@@ -350,10 +351,10 @@ QDeclarativeEngine* QDeclarativeView::engine()
   arranged hierarchically and this hierarchy is managed by the
   QDeclarativeEngine.
  */
-QDeclarativeContext* QDeclarativeView::rootContext()
+QDeclarativeContext* QDeclarativeView::rootContext() const
 {
-    Q_D(QDeclarativeView);
-    return d->engine.rootContext();
+    Q_D(const QDeclarativeView);
+    return d->engine->rootContext();
 }
 
 /*!
diff --git a/src/declarative/util/qdeclarativeview.h b/src/declarative/util/qdeclarativeview.h
index cdcf134..d3e4948 100644
--- a/src/declarative/util/qdeclarativeview.h
+++ b/src/declarative/util/qdeclarativeview.h
@@ -75,8 +75,8 @@ public:
     QUrl source() const;
     void setSource(const QUrl&);
 
-    QDeclarativeEngine* engine();
-    QDeclarativeContext* rootContext();
+    QDeclarativeEngine* engine() const;
+    QDeclarativeContext* rootContext() const;
 
     QGraphicsObject *rootObject() const;
 
-- 
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