/**************************************************************************** ** ** Copyright (C) 2005-2008 Trolltech ASA. All rights reserved. ** ** This file is part of the demonstration applications of the Qt Toolkit. ** ** This file may be used under the terms of the GNU General Public ** License versions 2.0 or 3.0 as published by the Free Software ** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3 ** included in the packaging of this file. Alternatively you may (at ** your option) use any later version of the GNU General Public ** License if such license has been publicly approved by Trolltech ASA ** (or its successors, if any) and the KDE Free Qt Foundation. In ** addition, as a special exception, Trolltech gives you certain ** additional rights. These rights are described in the Trolltech GPL ** Exception version 1.2, which can be found at ** http://www.trolltech.com/products/qt/gplexception/ and in the file ** GPL_EXCEPTION.txt in this package. ** ** Please review the following information to ensure GNU General ** Public Licensing requirements will be met: ** http://trolltech.com/products/qt/licenses/licensing/opensource/. If ** you are unsure which license is appropriate for your use, please ** review the following information: ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview ** or contact the sales department at sales@trolltech.com. ** ** In addition, as a special exception, Trolltech, as the sole ** copyright holder for Qt Designer, grants users of the Qt/Eclipse ** Integration plug-in the right for the Qt/Eclipse Integration to ** link to functionality provided by Qt Designer and its related ** libraries. ** ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE. Trolltech reserves all rights not expressly ** granted herein. ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ****************************************************************************/ #ifndef HOVERPOINTS_H #define HOVERPOINTS_H #include <QtGui> QT_FORWARD_DECLARE_CLASS(QBypassWidget) class HoverPoints : public QObject { Q_OBJECT public: enum PointShape { CircleShape, RectangleShape }; enum LockType { LockToLeft = 0x01, LockToRight = 0x02, LockToTop = 0x04, LockToBottom = 0x08 }; enum SortType { NoSort, XSort, YSort }; enum ConnectionType { NoConnection, LineConnection, CurveConnection }; HoverPoints(QWidget *widget, PointShape shape); bool eventFilter(QObject *object, QEvent *event); void paintPoints(); inline QRectF boundingRect() const; void setBoundingRect(const QRectF &boundingRect) { m_bounds = boundingRect; } QPolygonF points() const { return m_points; } void setPoints(const QPolygonF &points); QSizeF pointSize() const { return m_pointSize; } void setPointSize(const QSizeF &size) { m_pointSize = size; } SortType sortType() const { return m_sortType; } void setSortType(SortType sortType) { m_sortType = sortType; } ConnectionType connectionType() const { return m_connectionType; } void setConnectionType(ConnectionType connectionType) { m_connectionType = connectionType; } void setConnectionPen(const QPen &pen) { m_connectionPen = pen; } void setShapePen(const QPen &pen) { m_pointPen = pen; } void setShapeBrush(const QBrush &brush) { m_pointBrush = brush; } void setPointLock(int pos, LockType lock) { m_locks[pos] = lock; } void setEditable(bool editable) { m_editable = editable; } bool editable() const { return m_editable; } public slots: void setEnabled(bool enabled); void setDisabled(bool disabled) { setEnabled(!disabled); } signals: void pointsChanged(const QPolygonF &points); public: void firePointChange(); private: inline QRectF pointBoundingRect(int i) const; void movePoint(int i, const QPointF &newPos, bool emitChange = true); QWidget *m_widget; QPolygonF m_points; QRectF m_bounds; PointShape m_shape; SortType m_sortType; ConnectionType m_connectionType; QVector<uint> m_locks; QSizeF m_pointSize; int m_currentIndex; bool m_editable; bool m_enabled; QPen m_pointPen; QBrush m_pointBrush; QPen m_connectionPen; }; inline QRectF HoverPoints::pointBoundingRect(int i) const { QPointF p = m_points.at(i); qreal w = m_pointSize.width(); qreal h = m_pointSize.height(); qreal x = p.x() - w / 2; qreal y = p.y() - h / 2; return QRectF(x, y, w, h); } inline QRectF HoverPoints::boundingRect() const { if (m_bounds.isEmpty()) return m_widget->rect(); else return m_bounds; } #endif // HOVERPOINTS_H