diff options
Diffstat (limited to 'src/declarative/items/qsganchors_p_p.h')
-rw-r--r-- | src/declarative/items/qsganchors_p_p.h | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/src/declarative/items/qsganchors_p_p.h b/src/declarative/items/qsganchors_p_p.h new file mode 100644 index 0000000000..cb9b950c8f --- /dev/null +++ b/src/declarative/items/qsganchors_p_p.h @@ -0,0 +1,173 @@ +// 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 Technology Preview License Agreement accompanying +** this package. +** +** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QSGANCHORS_P_P_H +#define QSGANCHORS_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 "qsganchors_p.h" +#include "qsgitemchangelistener_p.h" +#include <private/qobject_p.h> + +QT_BEGIN_NAMESPACE + +class QSGAnchorLine +{ +public: + QSGAnchorLine() : 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 + }; + + QSGItem *item; + AnchorLine anchorLine; +}; + +inline bool operator==(const QSGAnchorLine& a, const QSGAnchorLine& b) +{ + return a.item == b.item && a.anchorLine == b.anchorLine; +} + +class QSGAnchorsPrivate : public QObjectPrivate, public QSGItemChangeListener +{ + Q_DECLARE_PUBLIC(QSGAnchors) +public: + QSGAnchorsPrivate(QSGItem *i) + : componentComplete(true), updatingMe(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(QSGItem *); + + void addDepend(QSGItem *); + void remDepend(QSGItem *); + bool isItemComplete() const; + + bool componentComplete:1; + bool updatingMe: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 updateOnComplete(); + void updateMe(); + + // QSGItemGeometryListener interface + void itemGeometryChanged(QSGItem *, const QRectF &, const QRectF &); + QSGAnchorsPrivate *anchorPrivate() { return this; } + + bool checkHValid() const; + bool checkVValid() const; + bool checkHAnchorValid(QSGAnchorLine anchor) const; + bool checkVAnchorValid(QSGAnchorLine anchor) const; + bool calcStretch(const QSGAnchorLine &edge1, const QSGAnchorLine &edge2, qreal offset1, qreal offset2, QSGAnchorLine::AnchorLine line, qreal &stretch); + + bool isMirrored() const; + void updateHorizontalAnchors(); + void updateVerticalAnchors(); + void fillChanged(); + void centerInChanged(); + + QSGItem *item; + QSGAnchors::Anchors usedAnchors; + + QSGItem *fill; + QSGItem *centerIn; + + QSGAnchorLine left; + QSGAnchorLine right; + QSGAnchorLine top; + QSGAnchorLine bottom; + QSGAnchorLine vCenter; + QSGAnchorLine hCenter; + QSGAnchorLine baseline; + + qreal leftMargin; + qreal rightMargin; + qreal topMargin; + qreal bottomMargin; + qreal margins; + qreal vCenterOffset; + qreal hCenterOffset; + qreal baselineOffset; + + static inline QSGAnchorsPrivate *get(QSGAnchors *o) { + return static_cast<QSGAnchorsPrivate *>(QObjectPrivate::get(o)); + } +}; + +QT_END_NAMESPACE + +Q_DECLARE_METATYPE(QSGAnchorLine) + +#endif |