Say hello to QtQuick module

This change moves the QtQuick 2 types and C++ API (including
SceneGraph) to a new module (AKA library), QtQuick.

99% of this change is moving files from src/declarative to
src/quick, and from tests/auto/declarative to
tests/auto/qtquick2.

The loading of QtQuick 2 ("import QtQuick 2.0") is now delegated to
a plugin, src/imports/qtquick2, just like it's done for QtQuick 1.

All tools, examples, and tests that use QtQuick C++ API have gotten
"QT += quick" or "QT += quick-private" added to their .pro file.

A few additional internal QtDeclarative classes had to be exported
(via Q_DECLARATIVE_PRIVATE_EXPORT) since they're needed by the
QtQuick 2 implementation.

The old header locations (e.g. QtDeclarative/qquickitem.h) will
still be supported for some time, but will produce compile-time
warnings. (To avoid the QtQuick implementation using the
compatibility headers (since QtDeclarative's includepath comes
first), a few include statements were modified, e.g. from
"#include <qsgnode.h>" to "#include <QtQuick/qsgnode.h>".)

There's a change in qtbase that automatically adds QtQuick to the
module list if QtDeclarative is used. Together with the compatibility
headers, this should help reduce the migration pain for existing
projects.

In theory, simply getting an existing QtDeclarative-based project
to compile and link shouldn't require any changes for now -- but
porting to the new scheme is of course recommended, and will
eventually become mandatory.

Task-number: QTBUG-22889
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Change-Id: Ia52be9373172ba2f37e7623231ecb060316c96a7
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@nokia.com>

1 files changed, 208 insertions, 0 deletions

diff --git a/src/quick/util/qdeclarativestate_p.h b/src/quick/util/qdeclarativestate_p.h
new file mode 100644
index 0000000000..79038e50ea
--- /dev/null
+++ b/src/quick/util/qdeclarativestate_p.h
@@ -0,0 +1,208 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QDECLARATIVESTATE_H
+#define QDECLARATIVESTATE_H
+
+#include <qdeclarative.h>
+#include <qdeclarativeproperty.h>
+#include <QtCore/qobject.h>
+#include <QtCore/qsharedpointer.h>
+#include <private/qtquickglobal_p.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class QDeclarativeActionEvent;
+class QDeclarativeAbstractBinding;
+class QDeclarativeBinding;
+class QDeclarativeExpression;
+class Q_QUICK_PRIVATE_EXPORT QDeclarativeAction
+{
+public:
+    QDeclarativeAction();
+    QDeclarativeAction(QObject *, const QString &, const QVariant &);
+    QDeclarativeAction(QObject *, const QString &,
+                       QDeclarativeContext *, const QVariant &);
+
+    bool restore:1;
+    bool actionDone:1;
+    bool reverseEvent:1;
+    bool deletableToBinding:1;
+
+    QDeclarativeProperty property;
+    QVariant fromValue;
+    QVariant toValue;
+
+    QDeclarativeAbstractBinding *fromBinding;
+    QWeakPointer<QDeclarativeAbstractBinding> toBinding;
+    QDeclarativeActionEvent *event;
+
+    //strictly for matching
+    QObject *specifiedObject;
+    QString specifiedProperty;
+
+    void deleteFromBinding();
+};
+
+class Q_AUTOTEST_EXPORT QDeclarativeActionEvent
+{
+public:
+    virtual ~QDeclarativeActionEvent();
+    virtual QString typeName() const;
+
+    enum Reason { ActualChange, FastForward };
+
+    virtual void execute(Reason reason = ActualChange);
+    virtual bool isReversable();
+    virtual void reverse(Reason reason = ActualChange);
+    virtual void saveOriginals() {}
+    virtual bool needsCopy() { return false; }
+    virtual void copyOriginals(QDeclarativeActionEvent *) {}
+
+    virtual bool isRewindable() { return isReversable(); }
+    virtual void rewind() {}
+    virtual void saveCurrentValues() {}
+    virtual void saveTargetValues() {}
+
+    virtual bool changesBindings();
+    virtual void clearBindings();
+    virtual bool override(QDeclarativeActionEvent*other);
+};
+
+//### rename to QDeclarativeStateChange?
+class QDeclarativeStateGroup;
+class QDeclarativeState;
+class QDeclarativeStateOperationPrivate;
+class Q_QUICK_EXPORT QDeclarativeStateOperation : public QObject
+{
+    Q_OBJECT
+public:
+    QDeclarativeStateOperation(QObject *parent = 0)
+        : QObject(parent) {}
+    typedef QList<QDeclarativeAction> ActionList;
+
+    virtual ActionList actions();
+
+    QDeclarativeState *state() const;
+    void setState(QDeclarativeState *state);
+
+protected:
+    QDeclarativeStateOperation(QObjectPrivate &dd, QObject *parent = 0);
+
+private:
+    Q_DECLARE_PRIVATE(QDeclarativeStateOperation)
+    Q_DISABLE_COPY(QDeclarativeStateOperation)
+};
+
+typedef QDeclarativeStateOperation::ActionList QDeclarativeStateActions;
+
+class QDeclarativeTransition;
+class QDeclarativeStatePrivate;
+class Q_QUICK_EXPORT QDeclarativeState : public QObject
+{
+    Q_OBJECT
+
+    Q_PROPERTY(QString name READ name WRITE setName)
+    Q_PROPERTY(QDeclarativeBinding *when READ when WRITE setWhen)
+    Q_PROPERTY(QString extend READ extends WRITE setExtends)
+    Q_PROPERTY(QDeclarativeListProperty<QDeclarativeStateOperation> changes READ changes)
+    Q_CLASSINFO("DefaultProperty", "changes")
+    Q_CLASSINFO("DeferredPropertyNames", "changes")
+
+public:
+    QDeclarativeState(QObject *parent=0);
+    virtual ~QDeclarativeState();
+
+    QString name() const;
+    void setName(const QString &);
+    bool isNamed() const;
+
+    /*'when' is a QDeclarativeBinding to limit state changes oscillation
+     due to the unpredictable order of evaluation of bound expressions*/
+    bool isWhenKnown() const;
+    QDeclarativeBinding *when() const;
+    void setWhen(QDeclarativeBinding *);
+
+    QString extends() const;
+    void setExtends(const QString &);
+
+    QDeclarativeListProperty<QDeclarativeStateOperation> changes();
+    int operationCount() const;
+    QDeclarativeStateOperation *operationAt(int) const;
+
+    QDeclarativeState &operator<<(QDeclarativeStateOperation *);
+
+    void apply(QDeclarativeTransition *, QDeclarativeState *revert);
+    void cancel();
+
+    QDeclarativeStateGroup *stateGroup() const;
+    void setStateGroup(QDeclarativeStateGroup *);
+
+    bool containsPropertyInRevertList(QObject *target, const QString &name) const;
+    bool changeValueInRevertList(QObject *target, const QString &name, const QVariant &revertValue);
+    bool changeBindingInRevertList(QObject *target, const QString &name, QDeclarativeAbstractBinding *binding);
+    bool removeEntryFromRevertList(QObject *target, const QString &name);
+    void addEntryToRevertList(const QDeclarativeAction &action);
+    void removeAllEntriesFromRevertList(QObject *target);
+    void addEntriesToRevertList(const QList<QDeclarativeAction> &actions);
+    QVariant valueInRevertList(QObject *target, const QString &name) const;
+    QDeclarativeAbstractBinding *bindingInRevertList(QObject *target, const QString &name) const;
+
+    bool isStateActive() const;
+
+Q_SIGNALS:
+    void completed();
+
+private:
+    Q_DECLARE_PRIVATE(QDeclarativeState)
+    Q_DISABLE_COPY(QDeclarativeState)
+};
+
+QT_END_NAMESPACE
+
+QML_DECLARE_TYPE(QDeclarativeStateOperation)
+QML_DECLARE_TYPE(QDeclarativeState)
+
+QT_END_HEADER
+
+#endif // QDECLARATIVESTATE_H