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Diffstat (limited to 'src/quick/items/qquickanchors_p_p.h')
| -rw-r--r-- | src/quick/items/qquickanchors_p_p.h | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/src/quick/items/qquickanchors_p_p.h b/src/quick/items/qquickanchors_p_p.h new file mode 100644 index 0000000000..50d55b081f --- /dev/null +++ b/src/quick/items/qquickanchors_p_p.h @@ -0,0 +1,176 @@ +// Commit: 2c7cab4172f1acc86fd49345a2847417e162f2c3 +/**************************************************************************** +** +** 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 QQUICKANCHORS_P_P_H +#define QQUICKANCHORS_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 "qquickanchors_p.h" +#include "qquickitemchangelistener_p.h" +#include <private/qobject_p.h> + +QT_BEGIN_NAMESPACE + +class QQuickAnchorLine +{ +public: + QQuickAnchorLine() : 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 + }; + + QQuickItem *item; + AnchorLine anchorLine; +}; + +inline bool operator==(const QQuickAnchorLine& a, const QQuickAnchorLine& b) +{ + return a.item == b.item && a.anchorLine == b.anchorLine; +} + +class QQuickAnchorsPrivate : public QObjectPrivate, public QQuickItemChangeListener +{ + Q_DECLARE_PUBLIC(QQuickAnchors) +public: + QQuickAnchorsPrivate(QQuickItem *i) + : componentComplete(true), updatingMe(false), inDestructor(false), updatingHorizontalAnchor(0), + updatingVerticalAnchor(0), updatingFill(0), updatingCenterIn(0), item(i), usedAnchors(0), fill(0), + centerIn(0), leftMargin(0), rightMargin(0), topMargin(0), bottomMargin(0), + margins(0), vCenterOffset(0), hCenterOffset(0), baselineOffset(0) + { + } + + void clearItem(QQuickItem *); + + int calculateDependency(QQuickItem *); + void addDepend(QQuickItem *); + void remDepend(QQuickItem *); + bool isItemComplete() const; + + bool componentComplete:1; + bool updatingMe:1; + bool inDestructor:1; + uint updatingHorizontalAnchor:2; + uint updatingVerticalAnchor:2; + uint updatingFill:2; + uint updatingCenterIn:2; + + void setItemHeight(qreal); + void setItemWidth(qreal); + void setItemX(qreal); + void setItemY(qreal); + void setItemPos(const QPointF &); + void setItemSize(const QSizeF &); + + void update(); + void updateOnComplete(); + void updateMe(); + + // QQuickItemGeometryListener interface + void itemGeometryChanged(QQuickItem *, const QRectF &, const QRectF &); + QQuickAnchorsPrivate *anchorPrivate() { return this; } + + bool checkHValid() const; + bool checkVValid() const; + bool checkHAnchorValid(QQuickAnchorLine anchor) const; + bool checkVAnchorValid(QQuickAnchorLine anchor) const; + bool calcStretch(const QQuickAnchorLine &edge1, const QQuickAnchorLine &edge2, qreal offset1, qreal offset2, QQuickAnchorLine::AnchorLine line, qreal &stretch); + + bool isMirrored() const; + void updateHorizontalAnchors(); + void updateVerticalAnchors(); + void fillChanged(); + void centerInChanged(); + + QQuickItem *item; + QQuickAnchors::Anchors usedAnchors; + + QQuickItem *fill; + QQuickItem *centerIn; + + QQuickAnchorLine left; + QQuickAnchorLine right; + QQuickAnchorLine top; + QQuickAnchorLine bottom; + QQuickAnchorLine vCenter; + QQuickAnchorLine hCenter; + QQuickAnchorLine baseline; + + qreal leftMargin; + qreal rightMargin; + qreal topMargin; + qreal bottomMargin; + qreal margins; + qreal vCenterOffset; + qreal hCenterOffset; + qreal baselineOffset; + + static inline QQuickAnchorsPrivate *get(QQuickAnchors *o) { + return static_cast<QQuickAnchorsPrivate *>(QObjectPrivate::get(o)); + } +}; + +QT_END_NAMESPACE + +Q_DECLARE_METATYPE(QQuickAnchorLine) + +#endif |