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/****************************************************************************
**
** 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 QQUICKLINEARLAYOUT_P_H
#define QQUICKLINEARLAYOUT_P_H
#include "qquicklayout_p.h"
#include "qquickgridlayoutengine_p.h"
QT_BEGIN_NAMESPACE
/**********************************
**
** QQuickGridLayoutBase
**
**/
class QQuickGridLayoutBasePrivate;
class QQuickGridLayoutBase : public QQuickLayout
{
Q_OBJECT
Q_PROPERTY(Qt::LayoutDirection layoutDirection READ layoutDirection WRITE setLayoutDirection NOTIFY layoutDirectionChanged REVISION 1)
QML_ANONYMOUS
QML_ADDED_IN_MINOR_VERSION(1)
public:
QQuickGridLayoutBase();
explicit QQuickGridLayoutBase(QQuickGridLayoutBasePrivate &dd,
Qt::Orientation orientation,
QQuickItem *parent = 0);
~QQuickGridLayoutBase();
void componentComplete() override;
void invalidate(QQuickItem *childItem = 0) override;
Qt::Orientation orientation() const;
void setOrientation(Qt::Orientation orientation);
QSizeF sizeHint(Qt::SizeHint whichSizeHint) const override;
Qt::LayoutDirection layoutDirection() const;
void setLayoutDirection(Qt::LayoutDirection dir);
Qt::LayoutDirection effectiveLayoutDirection() const;
void setAlignment(QQuickItem *item, Qt::Alignment align) override;
/* QQuickItemChangeListener */
void itemDestroyed(QQuickItem *item) override;
void itemVisibilityChanged(QQuickItem *item) override;
protected:
void updateLayoutItems() override;
QQuickItem *itemAt(int index) const override;
int itemCount() const override;
void rearrange(const QSizeF &size) override;
virtual void insertLayoutItems() {}
signals:
Q_REVISION(1) void layoutDirectionChanged();
private:
void removeGridItem(QGridLayoutItem *gridItem);
Q_DECLARE_PRIVATE(QQuickGridLayoutBase)
};
class QQuickLayoutStyleInfo;
class QQuickGridLayoutBasePrivate : public QQuickLayoutPrivate
{
Q_DECLARE_PUBLIC(QQuickGridLayoutBase)
public:
QQuickGridLayoutBasePrivate() : m_recurRearrangeCounter(0)
, m_rearranging(false)
, m_updateAfterRearrange(false)
, m_layoutDirection(Qt::LeftToRight)
{}
void mirrorChange() override
{
Q_Q(QQuickGridLayoutBase);
q->invalidate();
}
QQuickGridLayoutEngine engine;
Qt::Orientation orientation;
unsigned m_recurRearrangeCounter : 2;
unsigned m_rearranging : 1;
unsigned m_updateAfterRearrange : 1;
QVector<QQuickItem *> m_invalidateAfterRearrange;
Qt::LayoutDirection m_layoutDirection : 2;
QQuickLayoutStyleInfo *styleInfo;
};
/**********************************
**
** QQuickGridLayout
**
**/
class QQuickGridLayoutPrivate;
class QQuickGridLayout : public QQuickGridLayoutBase
{
Q_OBJECT
Q_PROPERTY(qreal columnSpacing READ columnSpacing WRITE setColumnSpacing NOTIFY columnSpacingChanged)
Q_PROPERTY(qreal rowSpacing READ rowSpacing WRITE setRowSpacing NOTIFY rowSpacingChanged)
Q_PROPERTY(int columns READ columns WRITE setColumns NOTIFY columnsChanged)
Q_PROPERTY(int rows READ rows WRITE setRows NOTIFY rowsChanged)
Q_PROPERTY(Flow flow READ flow WRITE setFlow NOTIFY flowChanged)
QML_NAMED_ELEMENT(GridLayout)
public:
explicit QQuickGridLayout(QQuickItem *parent = 0);
qreal columnSpacing() const;
void setColumnSpacing(qreal spacing);
qreal rowSpacing() const;
void setRowSpacing(qreal spacing);
int columns() const;
void setColumns(int columns);
int rows() const;
void setRows(int rows);
enum Flow { LeftToRight, TopToBottom };
Q_ENUM(Flow)
Flow flow() const;
void setFlow(Flow flow);
void insertLayoutItems() override;
signals:
void columnSpacingChanged();
void rowSpacingChanged();
void columnsChanged();
void rowsChanged();
void flowChanged();
private:
Q_DECLARE_PRIVATE(QQuickGridLayout)
};
class QQuickGridLayoutPrivate : public QQuickGridLayoutBasePrivate
{
Q_DECLARE_PUBLIC(QQuickGridLayout)
public:
QQuickGridLayoutPrivate(): columns(-1), rows(-1), flow(QQuickGridLayout::LeftToRight) {}
int columns;
int rows;
QQuickGridLayout::Flow flow;
};
/**********************************
**
** QQuickLinearLayout
**
**/
class QQuickLinearLayoutPrivate;
class QQuickLinearLayout : public QQuickGridLayoutBase
{
Q_OBJECT
Q_PROPERTY(qreal spacing READ spacing WRITE setSpacing NOTIFY spacingChanged)
public:
explicit QQuickLinearLayout(Qt::Orientation orientation,
QQuickItem *parent = 0);
void insertLayoutItem(QQuickItem *item);
qreal spacing() const;
void setSpacing(qreal spacing);
void insertLayoutItems() override;
signals:
void spacingChanged();
private:
Q_DECLARE_PRIVATE(QQuickLinearLayout)
};
class QQuickLinearLayoutPrivate : public QQuickGridLayoutBasePrivate
{
Q_DECLARE_PUBLIC(QQuickLinearLayout)
public:
QQuickLinearLayoutPrivate() {}
};
/**********************************
**
** QQuickRowLayout
**
**/
class QQuickRowLayout : public QQuickLinearLayout
{
Q_OBJECT
QML_NAMED_ELEMENT(RowLayout)
public:
explicit QQuickRowLayout(QQuickItem *parent = 0)
: QQuickLinearLayout(Qt::Horizontal, parent) {}
};
/**********************************
**
** QQuickColumnLayout
**
**/
class QQuickColumnLayout : public QQuickLinearLayout
{
Q_OBJECT
QML_NAMED_ELEMENT(ColumnLayout)
public:
explicit QQuickColumnLayout(QQuickItem *parent = 0)
: QQuickLinearLayout(Qt::Vertical, parent) {}
};
QT_END_NAMESPACE
#endif // QQUICKLINEARLAYOUT_P_H
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