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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 162 insertions, 0 deletions

diff --git a/demos/shared/hoverpoints.h b/demos/shared/hoverpoints.h
new file mode 100644
index 0000000000..9c10632d8d
--- /dev/null
+++ b/demos/shared/hoverpoints.h
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@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;
+
+    QHash<int, int> m_fingerPointMapping;
+
+    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