38be0d1383
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
115 lines
3.9 KiB
C++
115 lines
3.9 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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** the names of its contributors may be used to endorse or promote
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** products derived from this software without specific prior written
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** permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef PIEVIEW_H
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#define PIEVIEW_H
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#include <QAbstractItemView>
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#include <QFont>
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#include <QItemSelection>
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#include <QItemSelectionModel>
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#include <QModelIndex>
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#include <QRect>
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#include <QSize>
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#include <QPoint>
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#include <QWidget>
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QT_BEGIN_NAMESPACE
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class QRubberBand;
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QT_END_NAMESPACE
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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 = 0);
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QRect visualRect(const QModelIndex &index) const;
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void scrollTo(const QModelIndex &index, ScrollHint hint = EnsureVisible);
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QModelIndex indexAt(const QPoint &point) const;
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protected slots:
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void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);
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void rowsInserted(const QModelIndex &parent, int start, int end);
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void rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end);
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protected:
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bool edit(const QModelIndex &index, EditTrigger trigger, QEvent *event);
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QModelIndex moveCursor(QAbstractItemView::CursorAction cursorAction,
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Qt::KeyboardModifiers modifiers);
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int horizontalOffset() const;
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int verticalOffset() const;
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bool isIndexHidden(const QModelIndex &index) const;
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void setSelection(const QRect&, QItemSelectionModel::SelectionFlags command);
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void mousePressEvent(QMouseEvent *event);
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void mouseMoveEvent(QMouseEvent *event);
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void mouseReleaseEvent(QMouseEvent *event);
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void paintEvent(QPaintEvent *event);
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void resizeEvent(QResizeEvent *event);
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void scrollContentsBy(int dx, int dy);
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QRegion visualRegionForSelection(const QItemSelection &selection) const;
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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();
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int margin;
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int totalSize;
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int pieSize;
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int validItems;
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double totalValue;
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QPoint origin;
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QRubberBand *rubberBand;
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};
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//! [0]
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#endif
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