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https://github.com/jkriege2/JKQtPlotter.git
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79 lines
2.9 KiB
C++
79 lines
2.9 KiB
C++
/*
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Copyright (c) 2008-2022 Jan W. Krieger (<jan@jkrieger.de>)
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This software is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef JKQTPENHANCED_PAINTERS_H
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#define JKQTPENHANCED_PAINTERS_H
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#include "jkqtcommon/jkqtcommon_imexport.h"
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#include <QPainter>
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/*! \brief this class extends the <a href="http://doc.qt.io/qt-5/qpainter.html">QPainter</a>
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\ingroup jkqtptools_drawing
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*/
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class JKQTCOMMON_LIB_EXPORT JKQTPEnhancedPainter : public QPainter {
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public:
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enum PainterFlag { DefaultPaintMode = 0x00, /*!< \brief the default mode, the JKQTPEnhancedPainter draws on a pixel-device */
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VectorPainting = 0x01, /*!< \brief if set, the JKQTPEnhancedPainter draws onto a vector-device, like a printer, PDF or SVG-output */
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};
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Q_ENUMS(PainterFlag)
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Q_FLAGS(PainterFlags)
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Q_DECLARE_FLAGS(PainterFlags, PainterFlag)
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JKQTPEnhancedPainter(QPaintDevice* device);
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JKQTPEnhancedPainter();
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/** \copydoc m_flags */
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PainterFlags painterFlags() const ;
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/** \copydoc m_flags */
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void setPainterFlag(PainterFlag flag, bool enabled=true);
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/** \copydoc m_flags */
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void setPainterFlag(PainterFlags flags);
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/** \brief faster variant of QPainter::drawPolyline(),it turns out that drawing single lines is way faster than drawing with drawPolyLine()
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*
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* At least for thin (1 Pixel) lines on non-vector-devices, this does not make much difference in appearance
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*/
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void drawPolylineFast(const QPointF *points, int pointCount);
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inline void drawPolylineFast(const QPolygonF &polyline) {
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drawPolylineFast(polyline.constData(), int(polyline.size()));
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}
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void drawPolylineFast(const QPoint *points, int pointCount);
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inline void drawPolylineFast(const QPolygon &polyline) {
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drawPolylineFast(polyline.constData(), int(polyline.size()));
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}
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protected:
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void initQEnhacedPainter();
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private:
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/** \brief flags, specifying how the JKQTPEnhancedPainter works
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*
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* \see PainterFlags */
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PainterFlags m_flags;
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};
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Q_DECLARE_OPERATORS_FOR_FLAGS(JKQTPEnhancedPainter::PainterFlags)
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#endif // JKQTPENHANCED_PAINTERS_H
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