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# qgraphicsanchorlayout.h

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    00001 /****************************************************************************
    00002 **
    00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
    00004 ** All rights reserved.
    00005 ** Contact: Nokia Corporation (qt-info@nokia.com)
    00006 **
    00007 ** This file is part of the QtGui module of the Qt Toolkit.
    00008 **
    00009 ** $QT_BEGIN_LICENSE:LGPL$
    00010 ** Commercial Usage
    00011 ** Licensees holding valid Qt Commercial licenses may use this file in
    00012 ** accordance with the Qt Commercial License Agreement provided with the
    00013 ** Software or, alternatively, in accordance with the terms contained in
    00014 ** a written agreement between you and Nokia.
    00015 **
    00016 ** GNU Lesser General Public License Usage
    00017 ** Alternatively, this file may be used under the terms of the GNU Lesser
    00018 ** General Public License version 2.1 as published by the Free Software
    00019 ** Foundation and appearing in the file LICENSE.LGPL included in the
    00020 ** packaging of this file.  Please review the following information to
    00021 ** ensure the GNU Lesser General Public License version 2.1 requirements
    00022 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    00023 **
    00024 ** In addition, as a special exception, Nokia gives you certain additional
    00025 ** rights.  These rights are described in the Nokia Qt LGPL Exception
    00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module.
    00027 **
    00028 ** GNU General Public License Usage
    00029 ** Alternatively, this file may be used under the terms of the GNU
    00030 ** General Public License version 3.0 as published by the Free Software
    00031 ** Foundation and appearing in the file LICENSE.GPL included in the
    00032 ** packaging of this file.  Please review the following information to
    00033 ** ensure the GNU General Public License version 3.0 requirements will be
    00034 ** met: http://www.gnu.org/copyleft/gpl.html.
    00035 **
    00036 ** If you have questions regarding the use of this file, please contact
    00037 ** Nokia at qt-info@nokia.com.
    00038 ** $QT_END_LICENSE$
    00039 **
    00040 ****************************************************************************/
    00041
    00042 #ifndef QGRAPHICSANCHORLAYOUT_H
    00043 #define QGRAPHICSANCHORLAYOUT_H
    00044
    00045 #include <QtGui/qgraphicsitem.h>
    00046 #include <QtGui/qgraphicslayout.h>
    00047
    00048
    00049 QT_BEGIN_HEADER
    00050
    00051 QT_BEGIN_NAMESPACE
    00052
    00053 QT_MODULE(Gui)
    00054
    00055 #if !defined(QT_NO_GRAPHICSVIEW) || (QT_EDITION & QT_MODULE_GRAPHICSVIEW) != QT_MODULE_GRAPHICSVIEW
    00056
    00057 class QGraphicsAnchorPrivate;
    00058 class QGraphicsAnchorLayout;
    00059 class QGraphicsAnchorLayoutPrivate;
    00060
    00061 class Q_GUI_EXPORT QGraphicsAnchor : public QObject
    00062 {
    00063     Q_OBJECT
    00064     Q_PROPERTY(qreal spacing READ spacing WRITE setSpacing RESET unsetSpacing)
    00065     Q_PROPERTY(QSizePolicy::Policy sizePolicy READ sizePolicy WRITE setSizePolicy)
    00066 public:
    00067     void setSpacing(qreal spacing);
    00068     void unsetSpacing();
    00069     qreal spacing() const;
    00070     void setSizePolicy(QSizePolicy::Policy policy);
    00071     QSizePolicy::Policy sizePolicy() const;
    00072     ~QGraphicsAnchor();
    00073 private:
    00074     QGraphicsAnchor(QGraphicsAnchorLayout *parent);
    00075
    00076     Q_DECLARE_PRIVATE(QGraphicsAnchor)
    00077
    00078     friend class QGraphicsAnchorLayoutPrivate;
    00079     friend struct AnchorData;
    00080 };
    00081
    00082 class Q_GUI_EXPORT QGraphicsAnchorLayout : public QGraphicsLayout
    00083 {
    00084 public:
    00085     QGraphicsAnchorLayout(QGraphicsLayoutItem *parent = 0);
    00086     virtual ~QGraphicsAnchorLayout();
    00087
    00088     QGraphicsAnchor *addAnchor(QGraphicsLayoutItem *firstItem, Qt::AnchorPoint firstEdge,
    00089                                QGraphicsLayoutItem *secondItem, Qt::AnchorPoint secondEdge);
    00090     QGraphicsAnchor *anchor(QGraphicsLayoutItem *firstItem, Qt::AnchorPoint firstEdge,
    00091                             QGraphicsLayoutItem *secondItem, Qt::AnchorPoint secondEdge);
    00092
    00093     void addCornerAnchors(QGraphicsLayoutItem *firstItem, Qt::Corner firstCorner,
    00094                           QGraphicsLayoutItem *secondItem, Qt::Corner secondCorner);
    00095
    00096     void addAnchors(QGraphicsLayoutItem *firstItem,
    00097                     QGraphicsLayoutItem *secondItem,
    00098                     Qt::Orientations orientations = Qt::Horizontal | Qt::Vertical);
    00099
    00100     void setHorizontalSpacing(qreal spacing);
    00101     void setVerticalSpacing(qreal spacing);
    00102     void setSpacing(qreal spacing);
    00103     qreal horizontalSpacing() const;
    00104     qreal verticalSpacing() const;
    00105
    00106     void removeAt(int index);
    00107     void setGeometry(const QRectF &rect);
    00108     int count() const;
    00109     QGraphicsLayoutItem *itemAt(int index) const;
    00110
    00111     void invalidate();
    00112 protected:
    00113     QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const;
    00114
    00115 private:
    00116     Q_DISABLE_COPY(QGraphicsAnchorLayout)
    00117     Q_DECLARE_PRIVATE(QGraphicsAnchorLayout)
    00118
    00119     friend class QGraphicsAnchor;
    00120 };
    00121
    00122 #endif
    00123
    00124 QT_END_NAMESPACE
    00125
    00126 QT_END_HEADER
    00127
    00128 #endif