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| |
| #ifndef QGRAPHICSGRIDLAYOUTENGINE_P_H |
| #define QGRAPHICSGRIDLAYOUTENGINE_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 <QtWidgets/private/qtwidgetsglobal_p.h> |
| #include <QtGui/private/qgridlayoutengine_p.h> |
| |
| #include <QtWidgets/qsizepolicy.h> |
| #include <QtWidgets/qstyle.h> |
| #include <QtWidgets/qstyleoption.h> |
| #include "qgraphicslayoutitem.h" |
| |
| QT_REQUIRE_CONFIG(graphicsview); |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QGraphicsLayoutPrivate; |
| |
| class QGraphicsGridLayoutEngineItem : public QGridLayoutItem { |
| public: |
| QGraphicsGridLayoutEngineItem(QGraphicsLayoutItem *item, int row, int columns, int rowSpan = 1, int columnSpan = 1, |
| Qt::Alignment alignment = nullptr) |
| : QGridLayoutItem(row, columns, rowSpan, columnSpan, alignment), q_layoutItem(item) {} |
| |
| virtual QLayoutPolicy::Policy sizePolicy(Qt::Orientation orientation) const override |
| { |
| QSizePolicy sizePolicy(q_layoutItem->sizePolicy()); |
| return (QLayoutPolicy::Policy)((orientation == Qt::Horizontal) ? sizePolicy.horizontalPolicy() |
| : sizePolicy.verticalPolicy()); |
| } |
| |
| virtual QLayoutPolicy::ControlTypes controlTypes(LayoutSide) const override |
| { |
| const QSizePolicy::ControlType ct = q_layoutItem->sizePolicy().controlType(); |
| return (QLayoutPolicy::ControlTypes)ct; |
| } |
| |
| virtual QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint) const override |
| { |
| return q_layoutItem->effectiveSizeHint(which, constraint); |
| } |
| |
| bool isHidden() const; |
| |
| virtual bool isIgnored() const override; |
| |
| virtual void setGeometry(const QRectF &rect) override |
| { |
| q_layoutItem->setGeometry(rect); |
| } |
| |
| virtual bool hasDynamicConstraint() const override; |
| virtual Qt::Orientation dynamicConstraintOrientation() const override; |
| |
| QGraphicsLayoutItem *layoutItem() const { return q_layoutItem; } |
| |
| protected: |
| QGraphicsLayoutItem *q_layoutItem; |
| }; |
| |
| |
| class QGraphicsGridLayoutEngine : public QGridLayoutEngine |
| { |
| public: |
| QGraphicsGridLayoutEngineItem *findLayoutItem(QGraphicsLayoutItem *layoutItem) const |
| { |
| const int index = indexOf(layoutItem); |
| if (index < 0) |
| return nullptr; |
| return static_cast<QGraphicsGridLayoutEngineItem*>(q_items.at(index)); |
| } |
| |
| int indexOf(QGraphicsLayoutItem *item) const |
| { |
| for (int i = 0; i < q_items.count(); ++i) { |
| if (item == static_cast<QGraphicsGridLayoutEngineItem*>(q_items.at(i))->layoutItem()) |
| return i; |
| } |
| return -1; |
| } |
| |
| void setAlignment(QGraphicsLayoutItem *graphicsLayoutItem, Qt::Alignment alignment); |
| Qt::Alignment alignment(QGraphicsLayoutItem *graphicsLayoutItem) const; |
| |
| void setStretchFactor(QGraphicsLayoutItem *layoutItem, int stretch, Qt::Orientation orientation); |
| int stretchFactor(QGraphicsLayoutItem *layoutItem, Qt::Orientation orientation) const; |
| |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif // QGRAPHICSGRIDLAYOUTENGINE_P_H |