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Diffstat (limited to 'demos/shared/hoverpoints.h')
| -rw-r--r-- | demos/shared/hoverpoints.h | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/demos/shared/hoverpoints.h b/demos/shared/hoverpoints.h new file mode 100644 index 0000000..cf8742d --- /dev/null +++ b/demos/shared/hoverpoints.h @@ -0,0 +1,160 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the demonstration applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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 |