130 lines
3.5 KiB
C++
130 lines
3.5 KiB
C++
#pragma once
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#include <QPointer>
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#include <QtGui/private/qabstractlayoutstyleinfo_p.h>
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#include <QtGui/private/qgridlayoutengine_p.h>
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#include <QtQuickLayouts/private/qquickgridlayoutengine_p.h>
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#include <QtQuickLayouts/private/qquicklayout_p.h>
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#include <QtQuick/private/qquickitem_p.h>
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#include <qqmlintegration.h>
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namespace ZShell::components {
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class SnapLayout;
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class SnapLayoutPrivate;
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class SnapLayoutStyleInfo : public QAbstractLayoutStyleInfo {
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public:
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qreal spacing(Qt::Orientation orientation) const override;
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qreal windowMargin(Qt::Orientation orientation) const override;
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bool hasChangedCore() const override;
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};
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class SnapGridLayoutItem : public QQuickGridLayoutItem {
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public:
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SnapGridLayoutItem(
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QQuickItem* item,
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int row,
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int column,
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int rowSpan,
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int columnSpan,
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Qt::Alignment alignment,
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SnapLayout* layout);
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void setGeometry(const QRectF& rect) override;
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private:
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SnapLayout* m_layout;
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};
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class SnapLayout : public QQuickLayout {
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Q_OBJECT
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QML_ELEMENT
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Q_PROPERTY(
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Qt::Orientation orientation READ orientation WRITE setOrientation NOTIFY
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orientationChanged)
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Q_PROPERTY(qreal spacing READ spacing WRITE setSpacing NOTIFY spacingChanged)
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Q_PROPERTY(
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Qt::LayoutDirection layoutDirection READ layoutDirection WRITE
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setLayoutDirection NOTIFY layoutDirectionChanged)
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Q_PROPERTY(
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bool uniformCellSizes READ uniformCellSizes WRITE setUniformCellSizes
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NOTIFY uniformCellSizesChanged)
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public:
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explicit SnapLayout(QQuickItem* parent = nullptr);
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~SnapLayout() override;
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void componentComplete() override;
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QSizeF sizeHint(Qt::SizeHint whichSizeHint) const override;
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void setAlignment(QQuickItem* item, Qt::Alignment align) override;
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void setStretchFactor(
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QQuickItem* item, int stretchFactor, Qt::Orientation orient) override;
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void invalidate(QQuickItem* childItem = nullptr) override;
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void updateLayoutItems() override;
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QQuickItem* itemAt(int index) const override;
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int itemCount() const override;
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void rearrange(const QSizeF& size) override;
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void itemChange(ItemChange change, const ItemChangeData& value) override;
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void itemDestroyed(QQuickItem* item) override;
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void itemVisibilityChanged(QQuickItem* item) override;
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void itemGeometryChanged(
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QQuickItem* item,
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QQuickGeometryChange change,
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const QRectF& oldGeometry) override;
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Qt::Orientation orientation() const;
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void setOrientation(Qt::Orientation orientation);
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qreal spacing() const;
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void setSpacing(qreal spacing);
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Qt::LayoutDirection layoutDirection() const;
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void setLayoutDirection(Qt::LayoutDirection direction);
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Qt::LayoutDirection effectiveLayoutDirection() const;
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bool uniformCellSizes() const;
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void setUniformCellSizes(bool uniformCellSizes);
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signals:
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void orientationChanged();
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void spacingChanged();
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void layoutDirectionChanged();
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void uniformCellSizesChanged();
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private:
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Q_DECLARE_PRIVATE(SnapLayout)
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void insertLayoutItems();
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void removeGridItem(QGridLayoutItem* gridItem);
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void updateAncestorListeners();
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void clearAncestorListeners();
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};
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class SnapLayoutPrivate : public QQuickLayoutPrivate {
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Q_DECLARE_PUBLIC(SnapLayout)
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public:
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SnapLayoutPrivate() = default;
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void mirrorChange() override;
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QQuickGridLayoutEngine engine;
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SnapLayoutStyleInfo* styleInfo = nullptr;
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Qt::Orientation orientation = Qt::Horizontal;
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Qt::LayoutDirection layoutDirection = Qt::LeftToRight;
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bool rearranging = false;
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int recurRearrangeCounter = 0;
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QList<QQuickItem*> invalidateAfterRearrange;
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QVector<QPointer<QQuickItem>> ancestorListeners;
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qint64 originResidualX = -1;
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qint64 originResidualY = -1;
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};
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} // namespace ZShell::components
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