Quick.Layouts: Make plugin optional

This moves the Layouts types into a new library and is meant to make
them availabe to the QML compiler at some point in the future.

Change-Id: I9b2b31a78b0e9ca8b6c0db1fc9272d9941c61814
Reviewed-by: Maximilian Goldstein <max.goldstein@qt.io>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>

1 files changed, 0 insertions, 366 deletions

diff --git a/src/imports/layouts/qquicklayout_p.h b/src/imports/layouts/qquicklayout_p.h
deleted file mode 100644
index db883245e5..0000000000
--- a/src/imports/layouts/qquicklayout_p.h
+++ /dev/null
@@ -1,366 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Quick Layouts module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QQUICKLAYOUT_P_H
-#define QQUICKLAYOUT_P_H
-
-#include <QPointer>
-#include <QQuickItem>
-#include <private/qquickitem_p.h>
-#include <QtQuick/private/qquickitemchangelistener_p.h>
-#include <QtGui/private/qlayoutpolicy_p.h>
-
-QT_BEGIN_NAMESPACE
-
-class QQuickLayoutAttached;
-Q_DECLARE_LOGGING_CATEGORY(lcQuickLayouts)
-
-class QQuickLayoutPrivate;
-class QQuickLayout : public QQuickItem, public QQuickItemChangeListener
-
-{
-    Q_OBJECT
-    QML_NAMED_ELEMENT(Layout)
-    QML_ADDED_IN_VERSION(1, 0)
-    QML_UNCREATABLE("Do not create objects of type Layout.")
-    QML_ATTACHED(QQuickLayoutAttached)
-
-public:
-    enum SizeHint {
-        MinimumSize = 0,
-        PreferredSize,
-        MaximumSize,
-        NSizes
-    };
-
-    explicit QQuickLayout(QQuickLayoutPrivate &dd, QQuickItem *parent = 0);
-    ~QQuickLayout();
-
-    static QQuickLayoutAttached *qmlAttachedProperties(QObject *object);
-
-
-    void componentComplete() override;
-    virtual QSizeF sizeHint(Qt::SizeHint whichSizeHint) const = 0;
-    virtual void setAlignment(QQuickItem *item, Qt::Alignment align) = 0;
-    virtual void invalidate(QQuickItem * childItem = 0);
-    virtual void updateLayoutItems() = 0;
-    void ensureLayoutItemsUpdated() const;
-
-    // iterator
-    virtual QQuickItem *itemAt(int index) const = 0;
-    virtual int itemCount() const = 0;
-
-    virtual void rearrange(const QSizeF &);
-
-    static void effectiveSizeHints_helper(QQuickItem *item, QSizeF *cachedSizeHints, QQuickLayoutAttached **info, bool useFallbackToWidthOrHeight);
-    static QLayoutPolicy::Policy effectiveSizePolicy_helper(QQuickItem *item, Qt::Orientation orientation, QQuickLayoutAttached *info);
-    bool shouldIgnoreItem(QQuickItem *child, QQuickLayoutAttached *&info, QSizeF *sizeHints) const;
-    void checkAnchors(QQuickItem *item) const;
-
-    void itemChange(ItemChange change, const ItemChangeData &value) override;
-    void geometryChange(const QRectF &newGeometry, const QRectF &oldGeometry)  override;
-    bool isReady() const;
-    void deactivateRecur();
-
-    bool invalidated() const;
-    bool invalidatedArrangement() const;
-    bool isMirrored() const;
-
-    /* QQuickItemChangeListener */
-    void itemSiblingOrderChanged(QQuickItem *item) override;
-    void itemImplicitWidthChanged(QQuickItem *item) override;
-    void itemImplicitHeightChanged(QQuickItem *item) override;
-    void itemDestroyed(QQuickItem *item) override;
-    void itemVisibilityChanged(QQuickItem *item) override;
-
-    Q_INVOKABLE void _q_dumpLayoutTree() const;
-    void dumpLayoutTreeRecursive(int level, QString &buf) const;
-
-protected:
-    void updatePolish() override;
-
-    enum Orientation {
-        Vertical = 0,
-        Horizontal,
-        NOrientations
-    };
-
-protected slots:
-    void invalidateSenderItem();
-
-private:
-    unsigned m_inUpdatePolish : 1;
-    unsigned m_polishInsideUpdatePolish : 2;
-
-    Q_DECLARE_PRIVATE(QQuickLayout)
-
-    friend class QQuickLayoutAttached;
-};
-
-
-class QQuickLayoutPrivate : public QQuickItemPrivate
-{
-    Q_DECLARE_PUBLIC(QQuickLayout)
-public:
-    QQuickLayoutPrivate() : m_dirty(true), m_dirtyArrangement(true), m_isReady(false), m_disableRearrange(true), m_hasItemChangeListeners(false) {}
-
-    qreal getImplicitWidth() const override;
-    qreal getImplicitHeight() const override;
-
-    void applySizeHints() const;
-
-protected:
-    /* m_dirty == true means that something in the layout was changed,
-       but its state has not been synced to the internal grid layout engine. It is usually:
-       1. A child item was added or removed from the layout (or made visible/invisble)
-       2. A child item got one of its size hints changed
-    */
-    mutable unsigned m_dirty : 1;
-    /* m_dirtyArrangement == true means that the layout still needs a rearrange despite that
-     * m_dirty == false. This is only used for the case that a layout has been invalidated,
-     * but its new size is the same as the old size (in that case the child layout won't get
-     * a geometryChanged() notification, which rearrange() usually reacts to)
-     */
-    mutable unsigned m_dirtyArrangement : 1;
-    unsigned m_isReady : 1;
-    unsigned m_disableRearrange : 1;
-    unsigned m_hasItemChangeListeners : 1;      // if false, we don't need to remove its item change listeners...
-    mutable QSet<QQuickItem *> m_ignoredItems;
-};
-
-
-class QQuickLayoutAttached : public QObject
-{
-    Q_OBJECT
-    Q_PROPERTY(qreal minimumWidth READ minimumWidth WRITE setMinimumWidth NOTIFY minimumWidthChanged)
-    Q_PROPERTY(qreal minimumHeight READ minimumHeight WRITE setMinimumHeight NOTIFY minimumHeightChanged)
-    Q_PROPERTY(qreal preferredWidth READ preferredWidth WRITE setPreferredWidth NOTIFY preferredWidthChanged)
-    Q_PROPERTY(qreal preferredHeight READ preferredHeight WRITE setPreferredHeight NOTIFY preferredHeightChanged)
-    Q_PROPERTY(qreal maximumWidth READ maximumWidth WRITE setMaximumWidth NOTIFY maximumWidthChanged)
-    Q_PROPERTY(qreal maximumHeight READ maximumHeight WRITE setMaximumHeight NOTIFY maximumHeightChanged)
-    Q_PROPERTY(bool fillHeight READ fillHeight WRITE setFillHeight NOTIFY fillHeightChanged)
-    Q_PROPERTY(bool fillWidth READ fillWidth WRITE setFillWidth NOTIFY fillWidthChanged)
-    Q_PROPERTY(int row READ row WRITE setRow NOTIFY rowChanged)
-    Q_PROPERTY(int column READ column WRITE setColumn NOTIFY columnChanged)
-    Q_PROPERTY(int rowSpan READ rowSpan WRITE setRowSpan NOTIFY rowSpanChanged)
-    Q_PROPERTY(int columnSpan READ columnSpan WRITE setColumnSpan NOTIFY columnSpanChanged)
-    Q_PROPERTY(Qt::Alignment alignment READ alignment WRITE setAlignment NOTIFY alignmentChanged)
-
-    Q_PROPERTY(qreal margins READ margins WRITE setMargins NOTIFY marginsChanged)
-    Q_PROPERTY(qreal leftMargin READ leftMargin WRITE setLeftMargin RESET resetLeftMargin NOTIFY leftMarginChanged)
-    Q_PROPERTY(qreal topMargin READ topMargin WRITE setTopMargin RESET resetTopMargin NOTIFY topMarginChanged)
-    Q_PROPERTY(qreal rightMargin READ rightMargin WRITE setRightMargin RESET resetRightMargin NOTIFY rightMarginChanged)
-    Q_PROPERTY(qreal bottomMargin READ bottomMargin WRITE setBottomMargin RESET resetBottomMargin NOTIFY bottomMarginChanged)
-
-public:
-    QQuickLayoutAttached(QObject *object);
-
-    qreal minimumWidth() const { return !m_isMinimumWidthSet ? sizeHint(Qt::MinimumSize, Qt::Horizontal) : m_minimumWidth; }
-    void setMinimumWidth(qreal width);
-
-    qreal minimumHeight() const { return !m_isMinimumHeightSet ? sizeHint(Qt::MinimumSize, Qt::Vertical) : m_minimumHeight; }
-    void setMinimumHeight(qreal height);
-
-    qreal preferredWidth() const { return m_preferredWidth; }
-    void setPreferredWidth(qreal width);
-
-    qreal preferredHeight() const { return m_preferredHeight; }
-    void setPreferredHeight(qreal width);
-
-    qreal maximumWidth() const { return !m_isMaximumWidthSet ? sizeHint(Qt::MaximumSize, Qt::Horizontal) : m_maximumWidth; }
-    void setMaximumWidth(qreal width);
-
-    qreal maximumHeight() const { return !m_isMaximumHeightSet ? sizeHint(Qt::MaximumSize, Qt::Vertical) : m_maximumHeight; }
-    void setMaximumHeight(qreal height);
-
-    void setMinimumImplicitSize(const QSizeF &sz);
-    void setMaximumImplicitSize(const QSizeF &sz);
-
-    bool fillWidth() const { return m_fillWidth; }
-    void setFillWidth(bool fill);
-    bool isFillWidthSet() const { return m_isFillWidthSet; }
-
-    bool fillHeight() const { return m_fillHeight; }
-    void setFillHeight(bool fill);
-    bool isFillHeightSet() const { return m_isFillHeightSet; }
-
-    int row() const { return qMax(m_row, 0); }
-    void setRow(int row);
-    bool isRowSet() const { return m_row >= 0; }
-    int column() const { return qMax(m_column, 0); }
-    void setColumn(int column);
-    bool isColumnSet() const { return m_column >= 0; }
-
-    int rowSpan() const { return m_rowSpan; }
-    void setRowSpan(int span);
-    int columnSpan() const { return m_columnSpan; }
-    void setColumnSpan(int span);
-
-    Qt::Alignment alignment() const { return m_alignment; }
-    void setAlignment(Qt::Alignment align);
-
-    qreal margins() const { return m_defaultMargins; }
-    void setMargins(qreal m);
-
-    qreal leftMargin() const { return m_isLeftMarginSet ? m_margins.left() : m_defaultMargins; }
-    void setLeftMargin(qreal m);
-    void resetLeftMargin();
-
-    qreal topMargin() const { return m_isTopMarginSet ? m_margins.top() : m_defaultMargins; }
-    void setTopMargin(qreal m);
-    void resetTopMargin();
-
-    qreal rightMargin() const { return m_isRightMarginSet ? m_margins.right() : m_defaultMargins; }
-    void setRightMargin(qreal m);
-    void resetRightMargin();
-
-    qreal bottomMargin() const { return m_isBottomMarginSet ? m_margins.bottom() : m_defaultMargins; }
-    void setBottomMargin(qreal m);
-    void resetBottomMargin();
-
-    QMarginsF qMargins() const {
-        return QMarginsF(leftMargin(), topMargin(), rightMargin(), bottomMargin());
-    }
-
-    QMarginsF effectiveQMargins() const {
-        bool mirrored = parentLayout() && parentLayout()->isMirrored();
-        if (mirrored)
-            return QMarginsF(rightMargin(), topMargin(), leftMargin(), bottomMargin());
-        else
-            return qMargins();
-    }
-
-    bool setChangesNotificationEnabled(bool enabled)
-    {
-        const bool old = m_changesNotificationEnabled;
-        m_changesNotificationEnabled = enabled;
-        return old;
-    }
-
-    qreal sizeHint(Qt::SizeHint which, Qt::Orientation orientation) const;
-
-    bool isExtentExplicitlySet(Qt::Orientation o, Qt::SizeHint whichSize) const
-    {
-        switch (whichSize) {
-        case Qt::MinimumSize:
-            return o == Qt::Horizontal ? m_isMinimumWidthSet : m_isMinimumHeightSet;
-        case Qt::MaximumSize:
-            return o == Qt::Horizontal ? m_isMaximumWidthSet : m_isMaximumHeightSet;
-        case Qt::PreferredSize:
-            return true;            // Layout.preferredWidth is always explicitly set
-        case Qt::MinimumDescent:    // Not supported
-        case Qt::NSizeHints:
-            return false;
-        }
-        return false;
-    }
-
-signals:
-    void minimumWidthChanged();
-    void minimumHeightChanged();
-    void preferredWidthChanged();
-    void preferredHeightChanged();
-    void maximumWidthChanged();
-    void maximumHeightChanged();
-    void fillWidthChanged();
-    void fillHeightChanged();
-    void leftMarginChanged();
-    void topMarginChanged();
-    void rightMarginChanged();
-    void bottomMarginChanged();
-    void marginsChanged();
-    void rowChanged();
-    void columnChanged();
-    void rowSpanChanged();
-    void columnSpanChanged();
-    void alignmentChanged();
-
-private:
-    void invalidateItem();
-    QQuickLayout *parentLayout() const;
-    QQuickItem *item() const;
-private:
-    qreal m_minimumWidth;
-    qreal m_minimumHeight;
-    qreal m_preferredWidth;
-    qreal m_preferredHeight;
-    qreal m_maximumWidth;
-    qreal m_maximumHeight;
-
-    qreal m_defaultMargins;
-    QMarginsF m_margins;
-
-    qreal m_fallbackWidth;
-    qreal m_fallbackHeight;
-
-    // GridLayout specific properties
-    int m_row;
-    int m_column;
-    int m_rowSpan;
-    int m_columnSpan;
-
-    unsigned m_fillWidth : 1;
-    unsigned m_fillHeight : 1;
-    unsigned m_isFillWidthSet : 1;
-    unsigned m_isFillHeightSet : 1;
-    unsigned m_isMinimumWidthSet : 1;
-    unsigned m_isMinimumHeightSet : 1;
-    // preferredWidth and preferredHeight are always explicit, since
-    // their implicit equivalent is implicitWidth and implicitHeight
-    unsigned m_isMaximumWidthSet : 1;
-    unsigned m_isMaximumHeightSet : 1;
-    unsigned m_changesNotificationEnabled : 1;
-    unsigned m_isLeftMarginSet : 1;
-    unsigned m_isTopMarginSet : 1;
-    unsigned m_isRightMarginSet : 1;
-    unsigned m_isBottomMarginSet : 1;
-    Qt::Alignment m_alignment;
-    friend class QQuickLayout;
-};
-
-inline QQuickLayoutAttached *attachedLayoutObject(QQuickItem *item, bool create = true)
-{
-    return static_cast<QQuickLayoutAttached *>(qmlAttachedPropertiesObject<QQuickLayout>(item, create));
-}
-
-QT_END_NAMESPACE
-
-QML_DECLARE_TYPE(QQuickLayout)
-
-#endif // QQUICKLAYOUT_P_H