qgspainting.h

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/***************************************************************************
    qgspainting.h
    ---------------------
    begin                : July 2016
    copyright            : (C) 2016 by Martin Dobias
    email                : wonder dot sk at gmail dot com
 ***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
#ifndef QGSPAINTING_H
#define QGSPAINTING_H
 
#include "qgis.h"
#include "qgis_core.h"
#include "qgis_sip.h"
 
#include <QPainter>
 
class QTransform;

class CORE_EXPORT QgsPainting
{
  public:

    static QPainter::CompositionMode getCompositionMode( Qgis::BlendMode blendMode );

    static Qgis::BlendMode getBlendModeEnum( QPainter::CompositionMode blendMode );

    static bool isClippingMode( Qgis::BlendMode mode );

    static QTransform triangleToTriangleTransform( double inX1, double inY1, double inX2, double inY2, double inX3, double inY3, double outX1, double outY1, double outX2, double outY2, double outX3, double outY3, bool &ok SIP_OUT );

    static bool drawTriangleUsingTexture(
      QPainter *painter,
      const QPolygonF &triangle,
      const QImage &textureImage,
      float textureX1, float textureY1,
      float textureX2, float textureY2,
      float textureX3, float textureY3
    );

    static int qtDefaultDpiX();

    static int qtDefaultDpiY();

    static void applyScaleFixForQPictureDpi( QPainter *painter );

    static void drawPicture( QPainter *painter, const QPointF &point, const QPicture &picture );
};
 
#endif // QGSPAINTING_H