| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef QGRAPHICSANCHORLAYOUT_H |
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| 5 | #define QGRAPHICSANCHORLAYOUT_H |
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| 6 | |
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| 7 | #include <QtWidgets/qtwidgetsglobal.h> |
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| 8 | #include <QtWidgets/qgraphicsitem.h> |
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| 9 | #include <QtWidgets/qgraphicslayout.h> |
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| 10 | |
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| 11 | QT_REQUIRE_CONFIG(graphicsview); |
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| 12 | |
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| 13 | QT_BEGIN_NAMESPACE |
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| 14 | |
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| 15 | class QGraphicsAnchorPrivate; |
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| 16 | class QGraphicsAnchorLayout; |
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| 17 | class QGraphicsAnchorLayoutPrivate; |
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| 18 | |
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| 19 | class Q_WIDGETS_EXPORT QGraphicsAnchor : public QObject |
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| 20 | { |
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| 21 | Q_OBJECT |
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| 22 | Q_PROPERTY(qreal spacing READ spacing WRITE setSpacing RESET unsetSpacing) |
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| 23 | Q_PROPERTY(QSizePolicy::Policy sizePolicy READ sizePolicy WRITE setSizePolicy) |
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| 24 | public: |
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| 25 | void setSpacing(qreal spacing); |
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| 26 | void unsetSpacing(); |
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| 27 | qreal spacing() const; |
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| 28 | void setSizePolicy(QSizePolicy::Policy policy); |
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| 29 | QSizePolicy::Policy sizePolicy() const; |
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| 30 | ~QGraphicsAnchor(); |
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| 31 | private: |
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| 32 | QGraphicsAnchor(QGraphicsAnchorLayout *parent); |
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| 33 | |
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| 34 | Q_DECLARE_PRIVATE(QGraphicsAnchor) |
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| 35 | |
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| 36 | friend class QGraphicsAnchorLayoutPrivate; |
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| 37 | }; |
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| 38 | |
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| 39 | class Q_WIDGETS_EXPORT QGraphicsAnchorLayout : public QGraphicsLayout |
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| 40 | { |
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| 41 | public: |
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| 42 | QGraphicsAnchorLayout(QGraphicsLayoutItem *parent = nullptr); |
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| 43 | virtual ~QGraphicsAnchorLayout(); |
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| 44 | |
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| 45 | QGraphicsAnchor *addAnchor(QGraphicsLayoutItem *firstItem, Qt::AnchorPoint firstEdge, |
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| 46 | QGraphicsLayoutItem *secondItem, Qt::AnchorPoint secondEdge); |
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| 47 | QGraphicsAnchor *anchor(QGraphicsLayoutItem *firstItem, Qt::AnchorPoint firstEdge, |
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| 48 | QGraphicsLayoutItem *secondItem, Qt::AnchorPoint secondEdge); |
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| 49 | |
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| 50 | void addCornerAnchors(QGraphicsLayoutItem *firstItem, Qt::Corner firstCorner, |
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| 51 | QGraphicsLayoutItem *secondItem, Qt::Corner secondCorner); |
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| 52 | |
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| 53 | void addAnchors(QGraphicsLayoutItem *firstItem, |
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| 54 | QGraphicsLayoutItem *secondItem, |
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| 55 | Qt::Orientations orientations = Qt::Horizontal | Qt::Vertical); |
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| 56 | |
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| 57 | void setHorizontalSpacing(qreal spacing); |
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| 58 | void setVerticalSpacing(qreal spacing); |
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| 59 | void setSpacing(qreal spacing); |
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| 60 | qreal horizontalSpacing() const; |
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| 61 | qreal verticalSpacing() const; |
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| 62 | |
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| 63 | void removeAt(int index) override; |
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| 64 | void setGeometry(const QRectF &rect) override; |
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| 65 | int count() const override; |
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| 66 | QGraphicsLayoutItem *itemAt(int index) const override; |
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| 67 | |
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| 68 | void invalidate() override; |
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| 69 | protected: |
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| 70 | QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const override; |
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| 71 | |
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| 72 | private: |
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| 73 | Q_DISABLE_COPY(QGraphicsAnchorLayout) |
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| 74 | Q_DECLARE_PRIVATE(QGraphicsAnchorLayout) |
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| 75 | |
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| 76 | friend class QGraphicsAnchor; |
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| 77 | }; |
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| 78 | |
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| 79 | QT_END_NAMESPACE |
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| 80 | |
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| 81 | #endif |
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| 82 | |
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