Merge branch '4.7' of scm.dev.nokia.troll.no:qt/qt-qml into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/qt-qml: (131 commits)
  Avoid many unnecessary allocations, so so that paint engines attached to pixmaps
  Doc
  Fix autotests
  Fix autotests (remove import Qt.widgets)
  Add missing qml file to qdeclarativemousearea
  Doc fix
  Clean up example code, add white background behind text
  Update mouse area qmlvisual test to follow change QTBUG-10162
  Fix autotest bug in MouseArea
  Avoid emitting release when the mouse is ungrabbed
  Resize qmlruntime window to new dimensions when orientation changes
  Compile with opengl enabled.
  Avoid repeated create/destroy at top list boundary with sub-pixel movement.
  Call QDeclarativeItem::geometryChanged() base implementation
  qdoc fixes.
  Avoid warnings as delegates with bindings to parent are created and destroyed.
  qdoc fixes
  TextInput echoMode doc.
  Make sure to call base class implementation.
  More cleanup
  ...

1 files changed, 48 insertions, 62 deletions

diff --git a/src/declarative/qml/qdeclarativecomponent.cpp b/src/declarative/qml/qdeclarativecomponent.cpp
index d8bbb70..afdaee8 100644
--- a/src/declarative/qml/qdeclarativecomponent.cpp
+++ b/src/declarative/qml/qdeclarativecomponent.cpp
@@ -59,11 +59,11 @@
 #include <QFileInfo>
 #include <QtCore/qdebug.h>
 #include <QApplication>
+#include <QGraphicsObject>
 
 QT_BEGIN_NAMESPACE
 
 class QByteArray;
-int statusId = qRegisterMetaType<QDeclarativeComponent::Status>("QDeclarativeComponent::Status");
 
 /*!
     \class QDeclarativeComponent
@@ -242,10 +242,10 @@ QDeclarativeComponent::~QDeclarativeComponent()
     \qmlproperty enumeration Component::status
     This property holds the status of component loading.  It can be one of:
     \list
-    \o Null - no data is available for the component
-    \o Ready - the component has been loaded, and can be used to create instances.
-    \o Loading - the component is currently being loaded
-    \o Error - an error occurred while loading the component.
+    \o Component.Null - no data is available for the component
+    \o Component.Ready - the component has been loaded, and can be used to create instances.
+    \o Component.Loading - the component is currently being loaded
+    \o Component.Error - an error occurred while loading the component.
                Calling errorsString() will provide a human-readable description of any errors.
     \endlist
  */
@@ -269,19 +269,7 @@ QDeclarativeComponent::Status QDeclarativeComponent::status() const
 }
 
 /*!
-    \qmlproperty bool Component::isNull
-
-    Is true if the component is in the Null state, false otherwise.
-
-    Equivalent to status == Component.Null.
-*/
-
-/*!
-    \property QDeclarativeComponent::isNull
-
-    Is true if the component is in the Null state, false otherwise.
-
-    Equivalent to status() == QDeclarativeComponent::Null.
+    Returns true if status() == QDeclarativeComponent::Null.
 */
 bool QDeclarativeComponent::isNull() const
 {
@@ -289,19 +277,7 @@ bool QDeclarativeComponent::isNull() const
 }
 
 /*!
-    \qmlproperty bool Component::isReady
-
-    Is true if the component is in the Ready state, false otherwise.
-
-    Equivalent to status == Component.Ready.
-*/
-
-/*!
-    \property QDeclarativeComponent::isReady
-
-    Is true if the component is in the Ready state, false otherwise.
-
-    Equivalent to status() == QDeclarativeComponent::Ready.
+    Returns true if status() == QDeclarativeComponent::Ready.
 */
 bool QDeclarativeComponent::isReady() const
 {
@@ -309,21 +285,7 @@ bool QDeclarativeComponent::isReady() const
 }
 
 /*!
-    \qmlproperty bool Component::isError
-
-    Is true if the component is in the Error state, false otherwise.
-
-    Equivalent to status == Component.Error.
-
-    Calling errorsString() will provide a human-readable description of any errors.
-*/
-
-/*!
-    \property QDeclarativeComponent::isError
-
-    Is true if the component is in the Error state, false otherwise.
-
-    Equivalent to status() == QDeclarativeComponent::Error.
+    Returns true if status() == QDeclarativeComponent::Error.
 */
 bool QDeclarativeComponent::isError() const
 {
@@ -331,19 +293,7 @@ bool QDeclarativeComponent::isError() const
 }
 
 /*!
-    \qmlproperty bool Component::isLoading
-
-    Is true if the component is in the Loading state, false otherwise.
-
-    Equivalent to status == Component::Loading.
-*/
-
-/*!
-    \property QDeclarativeComponent::isLoading
-
-    Is true if the component is in the Loading state, false otherwise.
-
-    Equivalent to status() == QDeclarativeComponent::Loading.
+    Returns true if status() == QDeclarativeComponent::Loading.
 */
 bool QDeclarativeComponent::isLoading() const
 {
@@ -421,7 +371,7 @@ QDeclarativeComponent::QDeclarativeComponent(QDeclarativeEngine *engine, const Q
 {
     Q_D(QDeclarativeComponent);
     d->engine = engine;
-    loadUrl(QUrl::fromLocalFile(fileName));
+    loadUrl(d->engine->baseUrl().resolved(QUrl::fromLocalFile(fileName)));
 }
 
 /*!
@@ -598,14 +548,21 @@ QDeclarativeComponent::QDeclarativeComponent(QDeclarativeComponentPrivate &dd, Q
     \qmlmethod object Component::createObject()
     Returns an object instance from this component, or null if object creation fails.
 
-    The object will be created in the same context as the component was created in.
+    The object will be created in the same context as the one in which the component
+    was created.
+
+    Note that if the returned object is to be displayed, its \c parent must be set to
+    an existing item in a scene, or else the object will not be visible.
 */
 
 /*!
     \internal
     A version of create which returns a scriptObject, for use in script
+
+    Sets graphics object parent because forgetting to do this is a frequent
+    and serious problem.
 */
-QScriptValue QDeclarativeComponent::createObject()
+QScriptValue QDeclarativeComponent::createObject(QObject* parent)
 {
     Q_D(QDeclarativeComponent);
     QDeclarativeContext* ctxt = creationContext();
@@ -614,6 +571,20 @@ QScriptValue QDeclarativeComponent::createObject()
     QObject* ret = create(ctxt);
     if (!ret)
         return QScriptValue(QScriptValue::NullValue);
+
+    QGraphicsObject* gobj = qobject_cast<QGraphicsObject*>(ret);
+    bool needParent = (gobj != 0);
+    if(parent){
+        ret->setParent(parent);
+        QGraphicsObject* gparent = qobject_cast<QGraphicsObject*>(parent);
+        if(gparent){
+            gobj->setParentItem(gparent);
+            needParent = false;
+        }
+    }
+    if(needParent)
+        qWarning("QDeclarativeComponent: Created graphical object was not placed in the graphics scene.");
+
     QDeclarativeEnginePrivate *priv = QDeclarativeEnginePrivate::get(d->engine);
     QDeclarativeData::get(ret, true)->setImplicitDestructible();
     return priv->objectClass->newQObject(ret, QMetaType::QObjectStar);
@@ -754,6 +725,7 @@ QObject * QDeclarativeComponentPrivate::begin(QDeclarativeContextData *ctxt, QDe
 
         state->bindValues = enginePriv->bindValues;
         state->parserStatus = enginePriv->parserStatus;
+        state->finalizedParserStatus = enginePriv->finalizedParserStatus;
         state->componentAttached = enginePriv->componentAttached;
         if (state->componentAttached)
             state->componentAttached->prev = &state->componentAttached;
@@ -761,6 +733,7 @@ QObject * QDeclarativeComponentPrivate::begin(QDeclarativeContextData *ctxt, QDe
         enginePriv->componentAttached = 0;
         enginePriv->bindValues.clear();
         enginePriv->parserStatus.clear();
+        enginePriv->finalizedParserStatus.clear();
         state->completePending = true;
         enginePriv->inProgressCreations++;
     }
@@ -785,6 +758,7 @@ void QDeclarativeComponentPrivate::beginDeferred(QDeclarativeEnginePrivate *engi
 
         state->bindValues = enginePriv->bindValues;
         state->parserStatus = enginePriv->parserStatus;
+        state->finalizedParserStatus = enginePriv->finalizedParserStatus;
         state->componentAttached = enginePriv->componentAttached;
         if (state->componentAttached)
             state->componentAttached->prev = &state->componentAttached;
@@ -792,6 +766,7 @@ void QDeclarativeComponentPrivate::beginDeferred(QDeclarativeEnginePrivate *engi
         enginePriv->componentAttached = 0;
         enginePriv->bindValues.clear();
         enginePriv->parserStatus.clear();
+        enginePriv->finalizedParserStatus.clear();
         state->completePending = true;
         enginePriv->inProgressCreations++;
     }
@@ -826,6 +801,16 @@ void QDeclarativeComponentPrivate::complete(QDeclarativeEnginePrivate *enginePri
             QDeclarativeEnginePrivate::clear(ps);
         }
 
+        for (int ii = 0; ii < state->finalizedParserStatus.count(); ++ii) {
+            QPair<QDeclarativeGuard<QObject>, int> status = state->finalizedParserStatus.at(ii);
+            QObject *obj = status.first;
+            if (obj) {
+                void *args[] = { 0 };
+                QMetaObject::metacall(obj, QMetaObject::InvokeMetaMethod,
+                                      status.second, args);
+            }
+        }
+
         while (state->componentAttached) {
             QDeclarativeComponentAttached *a = state->componentAttached;
             a->rem();
@@ -838,6 +823,7 @@ void QDeclarativeComponentPrivate::complete(QDeclarativeEnginePrivate *enginePri
 
         state->bindValues.clear();
         state->parserStatus.clear();
+        state->finalizedParserStatus.clear();
         state->completePending = false;
 
         enginePriv->inProgressCreations--;