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https://github.com/crystalidea/qt6windows7.git
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67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#ifndef PIEVIEW_H
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#define PIEVIEW_H
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#include <QAbstractItemView>
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//! [0]
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class PieView : public QAbstractItemView
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{
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Q_OBJECT
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public:
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PieView(QWidget *parent = nullptr);
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QRect visualRect(const QModelIndex &index) const override;
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void scrollTo(const QModelIndex &index, ScrollHint hint = EnsureVisible) override;
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QModelIndex indexAt(const QPoint &point) const override;
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protected slots:
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void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight,
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const QList<int> &roles = QList<int>()) override;
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void rowsInserted(const QModelIndex &parent, int start, int end) override;
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void rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end) override;
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protected:
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bool edit(const QModelIndex &index, EditTrigger trigger, QEvent *event) override;
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QModelIndex moveCursor(QAbstractItemView::CursorAction cursorAction,
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Qt::KeyboardModifiers modifiers) override;
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int horizontalOffset() const override;
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int verticalOffset() const override;
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bool isIndexHidden(const QModelIndex &index) const override;
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void setSelection(const QRect&, QItemSelectionModel::SelectionFlags command) override;
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void mousePressEvent(QMouseEvent *event) override;
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void mouseMoveEvent(QMouseEvent *event) override;
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void mouseReleaseEvent(QMouseEvent *event) override;
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void paintEvent(QPaintEvent *event) override;
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void resizeEvent(QResizeEvent *event) override;
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void scrollContentsBy(int dx, int dy) override;
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QRegion visualRegionForSelection(const QItemSelection &selection) const override;
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private:
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QRect itemRect(const QModelIndex &item) const;
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QRegion itemRegion(const QModelIndex &index) const;
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int rows(const QModelIndex &index = QModelIndex()) const;
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void updateGeometries() override;
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int margin = 0;
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int totalSize = 300;
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int pieSize = totalSize - 2 * margin;
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int validItems = 0;
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double totalValue = 0.0;
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QRubberBand *rubberBand = nullptr;
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QPoint origin;
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};
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//! [0]
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#endif // PIEVIEW_H
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