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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the tools applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** 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.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef SPLINEEDITOR_H
+#define SPLINEEDITOR_H
+
+#include <QWidget>
+#include <QMenu>
+#include <QAction>
+#include <QScrollArea>
+
+#include <QEasingCurve>
+#include <QHash>
+
+class SegmentProperties;
+
+class SplineEditor : public QWidget
+{
+ Q_OBJECT
+
+ Q_PROPERTY(QEasingCurve easingCurve READ easingCurve WRITE setEasingCurve NOTIFY easingCurveChanged);
+
+public:
+ explicit SplineEditor(QWidget *parent = 0);
+ QString generateCode();
+ QStringList presetNames() const;
+ QWidget *pointListWidget();
+
+ void setControlPoint(int index, const QPointF &point)
+ {
+ m_controlPoints[index] = point;
+ update();
+ }
+
+ void setSmooth(int index, bool smooth)
+ {
+ m_smoothAction->setChecked(smooth);
+ smoothPoint(index * 3 + 2);
+ //update();
+ }
+
+signals:
+ void easingCurveChanged();
+ void easingCurveCodeChanged(const QString &code);
+
+
+public slots:
+ void setEasingCurve(const QEasingCurve &easingCurve);
+ void setPreset(const QString &name);
+ void setEasingCurve(const QString &code);
+
+protected:
+ void paintEvent(QPaintEvent *);
+ void mousePressEvent(QMouseEvent *);
+ void mouseMoveEvent(QMouseEvent *);
+ void mouseReleaseEvent(QMouseEvent *);
+ void contextMenuEvent(QContextMenuEvent *);
+
+ void invalidate();
+ void invalidateSmoothList();
+ void invalidateSegmentProperties();
+
+ QEasingCurve easingCurve() const
+ { return m_easingCurve; }
+
+ QHash<QString, QEasingCurve> presets() const;
+
+private:
+ int findControlPoint(const QPoint &point);
+ bool isSmooth(int i) const;
+
+ void smoothPoint( int index);
+ void cornerPoint( int index);
+ void deletePoint(int index);
+ void addPoint(const QPointF point);
+
+ void initPresets();
+
+ void setupPointListWidget();
+
+ bool isControlPointSmooth(int i) const;
+
+ QEasingCurve m_easingCurve;
+ QVector<QPointF> m_controlPoints;
+ QVector<bool> m_smoothList;
+ int m_numberOfSegments;
+ int m_activeControlPoint;
+ bool m_mouseDrag;
+ QPoint m_mousePress;
+ QHash<QString, QEasingCurve> m_presets;
+
+ QMenu *m_pointContextMenu;
+ QMenu *m_curveContextMenu;
+ QAction *m_deleteAction;
+ QAction *m_smoothAction;
+ QAction *m_cornerAction;
+ QAction *m_addPoint;
+
+ QScrollArea *m_pointListWidget;
+
+ QList<SegmentProperties*> m_segmentProperties;
+ bool m_block;
+};
+
+#endif // SPLINEEDITOR_H