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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, 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 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QMLGRAPHICSANCHORS_P_H
#define QMLGRAPHICSANCHORS_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 "qmlgraphicsanchors_p.h"
#include "private/qobject_p.h"
QT_BEGIN_NAMESPACE
class QmlGraphicsAnchorLine
{
public:
QmlGraphicsAnchorLine() : item(0), anchorLine(Invalid)
{
}
enum AnchorLine {
Invalid = 0x0,
Left = 0x01,
Right = 0x02,
Top = 0x04,
Bottom = 0x08,
HCenter = 0x10,
VCenter = 0x20,
Baseline = 0x40,
Horizontal_Mask = Left | Right | HCenter,
Vertical_Mask = Top | Bottom | VCenter | Baseline
};
QmlGraphicsItem *item;
AnchorLine anchorLine;
};
Q_DECLARE_METATYPE(QmlGraphicsAnchorLine)
class QmlGraphicsAnchorsPrivate : public QObjectPrivate
{
Q_DECLARE_PUBLIC(QmlGraphicsAnchors)
public:
QmlGraphicsAnchorsPrivate()
: updatingMe(false), updatingHorizontalAnchor(0),
updatingVerticalAnchor(0), item(0), usedAnchors(0), fill(0),
centerIn(0), leftMargin(0), rightMargin(0), topMargin(0),
bottomMargin(0), vCenterOffset(0), hCenterOffset(0), baselineOffset(0),
componentComplete(true)
{
}
void init()
{
}
void clearItem(QmlGraphicsItem *);
void addDepend(QmlGraphicsItem *);
void remDepend(QmlGraphicsItem *);
bool isItemComplete() const;
bool updatingMe;
int updatingHorizontalAnchor;
int updatingVerticalAnchor;
void setItemHeight(qreal);
void setItemWidth(qreal);
void setItemX(qreal);
void setItemY(qreal);
void setItemPos(const QPointF &);
void updateOnComplete();
void updateMe();
void update(QmlGraphicsItem *, const QRectF &, const QRectF &);
bool checkHValid() const;
bool checkVValid() const;
bool checkHAnchorValid(QmlGraphicsAnchorLine anchor) const;
bool checkVAnchorValid(QmlGraphicsAnchorLine anchor) const;
bool calcStretch(const QmlGraphicsAnchorLine &edge1, const QmlGraphicsAnchorLine &edge2, int offset1, int offset2, QmlGraphicsAnchorLine::AnchorLine line, int &stretch);
void updateHorizontalAnchors();
void updateVerticalAnchors();
void fillChanged();
void centerInChanged();
QmlGraphicsItem *item;
QmlGraphicsAnchors::UsedAnchors usedAnchors;
QmlGraphicsItem *fill;
QmlGraphicsItem *centerIn;
QmlGraphicsAnchorLine left;
QmlGraphicsAnchorLine right;
QmlGraphicsAnchorLine top;
QmlGraphicsAnchorLine bottom;
QmlGraphicsAnchorLine vCenter;
QmlGraphicsAnchorLine hCenter;
QmlGraphicsAnchorLine baseline;
qreal leftMargin;
qreal rightMargin;
qreal topMargin;
qreal bottomMargin;
qreal vCenterOffset;
qreal hCenterOffset;
qreal baselineOffset;
bool componentComplete;
};
QT_END_NAMESPACE
#endif
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