77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is
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* 'psimpl - generic n-dimensional polyline simplification'.
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*
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* The Initial Developer of the Original Code is
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* Elmar de Koning.
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* Portions created by the Initial Developer are Copyright (C) 2010-2011
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* ***** END LICENSE BLOCK ***** */
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/*
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psimpl - generic n-dimensional polyline simplification
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Copyright (C) 2010-2011 Elmar de Koning, edekoning@gmail.com
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This file is part of psimpl, and is hosted at SourceForge:
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http://sourceforge.net/projects/psimpl/
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*/
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#ifndef RENDERAREA_H
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#define RENDERAREA_H
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#include <QtGui/QFrame>
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#include <QtGui/QPainterPath>
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namespace psimpl {
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/*!
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\brief A frame that can draw polylines and their simplification.
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Note that the point count of each polyline is always limited to 100.000 to speed up drawing.
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*/
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class RenderArea : public QFrame
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{
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public:
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RenderArea (QWidget *inParent = 0, Qt::WindowFlags inFlags = 0);
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void SetGeneratedPolyline (QVector <qreal>& polyline);
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void SetSimplifiedPolyline (QVector <qreal>& polyline);
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void SetVisibleGeneratedPolyline (bool visible) { mDrawGeneratedPolyline = visible; }
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void SetVisibleSimplifiedPolyline (bool visible) { mDrawSimplifiedPolyline = visible; }
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void SetKeepAspectRatio (bool keep) { mKeepAspectRatio = keep; }
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protected:
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void paintEvent (QPaintEvent *inEvent);
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private:
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QPainterPath Convert (QVector <qreal>& polyline);
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private:
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QPainterPath mGeneratedPolyline;
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QPainterPath mSimplifiedPolyline;
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bool mDrawGeneratedPolyline;
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bool mDrawSimplifiedPolyline;
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bool mKeepAspectRatio;
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};
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} // namespace psimpl
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#endif // RENDERAREA_H
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