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3 ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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5 ** Contact: http://www.qt-project.org/
7 ** This file is part of the QtDeclarative module of the Qt Toolkit.
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10 ** GNU Lesser General Public License Usage
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14 ** file. Please review the following information to ensure the GNU Lesser
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22 ** GNU General Public License Usage
23 ** Alternatively, this file may be used under the terms of the GNU General
24 ** Public License version 3.0 as published by the Free Software Foundation
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40 ****************************************************************************/
42 #ifndef QDECLARATIVEANCHORS_P_H
43 #define QDECLARATIVEANCHORS_P_H
49 // This file is not part of the Qt API. It exists purely as an
50 // implementation detail. This header file may change from version to
51 // version without notice, or even be removed.
56 #include "QtQuick1/private/qdeclarativeanchors_p.h"
57 #include "QtQuick1/private/qdeclarativeitemchangelistener_p.h"
58 #include <private/qobject_p.h>
62 // NOTE: if you change this then also update the copy in qdeclarativev4compiler_p_p.h
63 class QDeclarative1AnchorLine
66 QDeclarative1AnchorLine() : item(0), anchorLine(Invalid) {}
77 Horizontal_Mask = Left | Right | HCenter,
78 Vertical_Mask = Top | Bottom | VCenter | Baseline
81 QGraphicsObject *item;
82 AnchorLine anchorLine;
85 inline bool operator==(const QDeclarative1AnchorLine& a, const QDeclarative1AnchorLine& b)
87 return a.item == b.item && a.anchorLine == b.anchorLine;
90 class QDeclarative1AnchorsPrivate : public QObjectPrivate, public QDeclarativeItemChangeListener
92 Q_DECLARE_PUBLIC(QDeclarative1Anchors)
94 QDeclarative1AnchorsPrivate(QGraphicsObject *i)
95 : componentComplete(true), updatingMe(false), updatingHorizontalAnchor(0),
96 updatingVerticalAnchor(0), updatingFill(0), updatingCenterIn(0), item(i), usedAnchors(0), fill(0),
97 centerIn(0), leftMargin(0), rightMargin(0), topMargin(0), bottomMargin(0),
98 margins(0), vCenterOffset(0), hCenterOffset(0), baselineOffset(0)
102 void clearItem(QGraphicsObject *);
104 void addDepend(QGraphicsObject *);
105 void remDepend(QGraphicsObject *);
106 bool isItemComplete() const;
108 bool componentComplete:1;
110 uint updatingHorizontalAnchor:2;
111 uint updatingVerticalAnchor:2;
113 uint updatingCenterIn:2;
115 void setItemHeight(qreal);
116 void setItemWidth(qreal);
117 void setItemX(qreal);
118 void setItemY(qreal);
119 void setItemPos(const QPointF &);
120 void setItemSize(const QSizeF &);
122 void updateOnComplete();
125 // QDeclarativeItemGeometryListener interface
126 void itemGeometryChanged(QDeclarativeItem *, const QRectF &, const QRectF &);
127 void _q_widgetDestroyed(QObject *);
128 void _q_widgetGeometryChanged();
129 QDeclarative1AnchorsPrivate *anchorPrivate() { return this; }
131 bool checkHValid() const;
132 bool checkVValid() const;
133 bool checkHAnchorValid(QDeclarative1AnchorLine anchor) const;
134 bool checkVAnchorValid(QDeclarative1AnchorLine anchor) const;
135 bool calcStretch(const QDeclarative1AnchorLine &edge1, const QDeclarative1AnchorLine &edge2, qreal offset1, qreal offset2, QDeclarative1AnchorLine::AnchorLine line, qreal &stretch);
137 bool isMirrored() const;
138 void updateHorizontalAnchors();
139 void updateVerticalAnchors();
141 void centerInChanged();
143 QGraphicsObject *item;
144 QDeclarative1Anchors::Anchors usedAnchors;
146 QGraphicsObject *fill;
147 QGraphicsObject *centerIn;
149 QDeclarative1AnchorLine left;
150 QDeclarative1AnchorLine right;
151 QDeclarative1AnchorLine top;
152 QDeclarative1AnchorLine bottom;
153 QDeclarative1AnchorLine vCenter;
154 QDeclarative1AnchorLine hCenter;
155 QDeclarative1AnchorLine baseline;
164 qreal baselineOffset;
169 Q_DECLARE_METATYPE(QDeclarative1AnchorLine)