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, 262 insertions, 0 deletions

diff --git a/src/quick/items/qquickflickable_p_p.h b/src/quick/items/qquickflickable_p_p.h
new file mode 100644
index 0000000000..8ceea6162f
--- /dev/null
+++ b/src/quick/items/qquickflickable_p_p.h
@@ -0,0 +1,262 @@
+// Commit: 160f1867868cdea916923652b00484ed11f90aaa
+/****************************************************************************
+**
+** 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 QQUICKFLICKABLE_P_P_H
+#define QQUICKFLICKABLE_P_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qquickflickable_p.h"
+#include "qquickitem_p.h"
+#include "qquickitemchangelistener_p.h"
+
+#include <QtDeclarative/qdeclarative.h>
+#include <QtCore/qdatetime.h>
+#include "qplatformdefs.h"
+
+#include <private/qdeclarativetimeline_p_p.h>
+#include <private/qdeclarativeanimation_p_p.h>
+
+QT_BEGIN_NAMESPACE
+
+// Really slow flicks can be annoying.
+const qreal MinimumFlickVelocity = 75.0;
+
+class QQuickFlickableVisibleArea;
+class QQuickFlickablePrivate : public QQuickItemPrivate, public QQuickItemChangeListener
+{
+    Q_DECLARE_PUBLIC(QQuickFlickable)
+
+public:
+    static inline QQuickFlickablePrivate *get(QQuickFlickable *o) { return o->d_func(); }
+
+    QQuickFlickablePrivate();
+    void init();
+
+    struct Velocity : public QDeclarativeTimeLineValue
+    {
+        Velocity(QQuickFlickablePrivate *p)
+            : parent(p) {}
+        virtual void setValue(qreal v) {
+            if (v != value()) {
+                QDeclarativeTimeLineValue::setValue(v);
+                parent->updateVelocity();
+            }
+        }
+        QQuickFlickablePrivate *parent;
+    };
+
+    struct AxisData {
+        AxisData(QQuickFlickablePrivate *fp, void (QQuickFlickablePrivate::*func)(qreal))
+            : move(fp, func), viewSize(-1), startMargin(0), endMargin(0)
+            , smoothVelocity(fp), atEnd(false), atBeginning(true)
+            , fixingUp(false), inOvershoot(false), moving(false), flicking(false)
+            , dragging(false), extentsChanged(false)
+            , explicitValue(false), minExtentDirty(true), maxExtentDirty(true)
+        {}
+
+        void reset() {
+            velocityBuffer.clear();
+            dragStartOffset = 0;
+            fixingUp = false;
+            inOvershoot = false;
+        }
+
+        void markExtentsDirty() {
+            minExtentDirty = true;
+            maxExtentDirty = true;
+            extentsChanged = true;
+        }
+
+        void addVelocitySample(qreal v, qreal maxVelocity);
+        void updateVelocity();
+
+        QDeclarativeTimeLineValueProxy<QQuickFlickablePrivate> move;
+        qreal viewSize;
+        qreal pressPos;
+        qreal dragStartOffset;
+        qreal dragMinBound;
+        qreal dragMaxBound;
+        qreal velocity;
+        qreal flickTarget;
+        qreal startMargin;
+        qreal endMargin;
+        QQuickFlickablePrivate::Velocity smoothVelocity;
+        QPODVector<qreal,10> velocityBuffer;
+        bool atEnd : 1;
+        bool atBeginning : 1;
+        bool fixingUp : 1;
+        bool inOvershoot : 1;
+        bool moving : 1;
+        bool flicking : 1;
+        bool dragging : 1;
+        bool extentsChanged : 1;
+        bool explicitValue : 1;
+        mutable bool minExtentDirty : 1;
+        mutable bool maxExtentDirty : 1;
+    };
+
+    void flickX(qreal velocity);
+    void flickY(qreal velocity);
+    virtual void flick(AxisData &data, qreal minExtent, qreal maxExtent, qreal vSize,
+                        QDeclarativeTimeLineCallback::Callback fixupCallback, qreal velocity);
+
+    void fixupX();
+    void fixupY();
+    virtual void fixup(AxisData &data, qreal minExtent, qreal maxExtent);
+
+    void updateBeginningEnd();
+
+    bool isOutermostPressDelay() const;
+    void captureDelayedPress(QMouseEvent *event);
+    void clearDelayedPress();
+
+    void setViewportX(qreal x);
+    void setViewportY(qreal y);
+
+    qreal overShootDistance(qreal size);
+
+    void itemGeometryChanged(QQuickItem *, const QRectF &, const QRectF &);
+
+    void draggingStarting();
+    void draggingEnding();
+
+public:
+    QQuickItem *contentItem;
+
+    AxisData hData;
+    AxisData vData;
+
+    QDeclarativeTimeLine timeline;
+    bool hMoved : 1;
+    bool vMoved : 1;
+    bool stealMouse : 1;
+    bool pressed : 1;
+    bool interactive : 1;
+    bool calcVelocity : 1;
+    bool pixelAligned : 1;
+    QElapsedTimer lastPosTime;
+    QPointF lastPos;
+    QPointF pressPos;
+    QElapsedTimer pressTime;
+    qreal deceleration;
+    qreal maxVelocity;
+    QElapsedTimer velocityTime;
+    QPointF lastFlickablePosition;
+    qreal reportedVelocitySmoothing;
+    QMouseEvent *delayedPressEvent;
+    QQuickItem *delayedPressTarget;
+    QBasicTimer delayedPressTimer;
+    int pressDelay;
+    int fixupDuration;
+
+    enum FixupMode { Normal, Immediate, ExtentChanged };
+    FixupMode fixupMode;
+
+    static void fixupY_callback(void *);
+    static void fixupX_callback(void *);
+
+    void updateVelocity();
+    int vTime;
+    QDeclarativeTimeLine velocityTimeline;
+    QQuickFlickableVisibleArea *visibleArea;
+    QQuickFlickable::FlickableDirection flickableDirection;
+    QQuickFlickable::BoundsBehavior boundsBehavior;
+
+    void handleMousePressEvent(QMouseEvent *);
+    void handleMouseMoveEvent(QMouseEvent *);
+    void handleMouseReleaseEvent(QMouseEvent *);
+
+    // flickableData property
+    static void data_append(QDeclarativeListProperty<QObject> *, QObject *);
+    static int data_count(QDeclarativeListProperty<QObject> *);
+    static QObject *data_at(QDeclarativeListProperty<QObject> *, int);
+    static void data_clear(QDeclarativeListProperty<QObject> *);
+};
+
+class QQuickFlickableVisibleArea : public QObject
+{
+    Q_OBJECT
+
+    Q_PROPERTY(qreal xPosition READ xPosition NOTIFY xPositionChanged)
+    Q_PROPERTY(qreal yPosition READ yPosition NOTIFY yPositionChanged)
+    Q_PROPERTY(qreal widthRatio READ widthRatio NOTIFY widthRatioChanged)
+    Q_PROPERTY(qreal heightRatio READ heightRatio NOTIFY heightRatioChanged)
+
+public:
+    QQuickFlickableVisibleArea(QQuickFlickable *parent=0);
+
+    qreal xPosition() const;
+    qreal widthRatio() const;
+    qreal yPosition() const;
+    qreal heightRatio() const;
+
+    void updateVisible();
+
+signals:
+    void xPositionChanged(qreal xPosition);
+    void yPositionChanged(qreal yPosition);
+    void widthRatioChanged(qreal widthRatio);
+    void heightRatioChanged(qreal heightRatio);
+
+private:
+    QQuickFlickable *flickable;
+    qreal m_xPosition;
+    qreal m_widthRatio;
+    qreal m_yPosition;
+    qreal m_heightRatio;
+};
+
+QT_END_NAMESPACE
+
+QML_DECLARE_TYPE(QQuickFlickableVisibleArea)
+
+#endif // QQUICKFLICKABLE_P_P_H