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    41 

    42 #ifndef QGRAPHICSANCHORLAYOUT_H

    43 #define QGRAPHICSANCHORLAYOUT_H

    44 

    45 #include <QtGui/qgraphicsitem.h>

    46 #include <QtGui/qgraphicslayout.h>

    47 

    48 

    49 QT_BEGIN_HEADER

    50 

    51 QT_BEGIN_NAMESPACE

    52 

    53 QT_MODULE(Gui)

    54 

    55 #if !defined(QT_NO_GRAPHICSVIEW) || (QT_EDITION & QT_MODULE_GRAPHICSVIEW) != QT_MODULE_GRAPHICSVIEW

    56 

    57 class QGraphicsAnchorPrivate;

    58 class QGraphicsAnchorLayout;

    59 class QGraphicsAnchorLayoutPrivate;

    60 

    61 class Q_GUI_EXPORT QGraphicsAnchor : public QObject

    62 {

    63     Q_OBJECT

    64     Q_PROPERTY(qreal spacing READ spacing WRITE setSpacing RESET unsetSpacing)

    65     Q_PROPERTY(QSizePolicy::Policy sizePolicy READ sizePolicy WRITE setSizePolicy)

    66 public:

    67     void setSpacing(qreal spacing);

    68     void unsetSpacing();

    69     qreal spacing() const;

    70     void setSizePolicy(QSizePolicy::Policy policy);

    71     QSizePolicy::Policy sizePolicy() const;

    72     ~QGraphicsAnchor();

    73 private:

    74     QGraphicsAnchor(QGraphicsAnchorLayout *parent);

    75 

    76     Q_DECLARE_PRIVATE(QGraphicsAnchor)

    77 

    78     friend class QGraphicsAnchorLayoutPrivate;

    79 };

    80 

    81 class Q_GUI_EXPORT QGraphicsAnchorLayout : public QGraphicsLayout

    82 {

    83 public:

    84     QGraphicsAnchorLayout(QGraphicsLayoutItem *parent = 0);

    85     virtual ~QGraphicsAnchorLayout();

    86 

    87     QGraphicsAnchor *addAnchor(QGraphicsLayoutItem *firstItem, Qt::AnchorPoint firstEdge,

    88                                QGraphicsLayoutItem *secondItem, Qt::AnchorPoint secondEdge);

    89     QGraphicsAnchor *anchor(QGraphicsLayoutItem *firstItem, Qt::AnchorPoint firstEdge,

    90                             QGraphicsLayoutItem *secondItem, Qt::AnchorPoint secondEdge);

    91 

    92     void addCornerAnchors(QGraphicsLayoutItem *firstItem, Qt::Corner firstCorner,

    93                           QGraphicsLayoutItem *secondItem, Qt::Corner secondCorner);

    94 

    95     void addAnchors(QGraphicsLayoutItem *firstItem,

    96                     QGraphicsLayoutItem *secondItem,

    97                     Qt::Orientations orientations = Qt::Horizontal | Qt::Vertical);

    98 

    99     void setHorizontalSpacing(qreal spacing);

   100     void setVerticalSpacing(qreal spacing);

   101     void setSpacing(qreal spacing);

   102     qreal horizontalSpacing() const;

   103     qreal verticalSpacing() const;

   104 

   105     void removeAt(int index);

   106     void setGeometry(const QRectF &rect);

   107     int count() const;

   108     QGraphicsLayoutItem *itemAt(int index) const;

   109 

   110     void invalidate();

   111 protected:

   112     QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const;

   113 

   114 private:

   115     Q_DISABLE_COPY(QGraphicsAnchorLayout)

   116     Q_DECLARE_PRIVATE(QGraphicsAnchorLayout)

   117 

   118     friend class QGraphicsAnchor;

   119 };

   120 

   121 #endif

   122 

   123 QT_END_NAMESPACE

   124 

   125 QT_END_HEADER

   126 

   127 #endif