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project/fm_viewer/fav/QPainterRenderer_p.h

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+/******************************************************************************
+	QtAV:  Multimedia framework based on Qt and FFmpeg
+    Copyright (C) 2012-2016 Wang Bin <wbsecg1@gmail.com>
+    
+*   This file is part of QtAV
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+******************************************************************************/
+
+
+#ifndef QTAV_QPAINTERRENDERER_P_H
+#define QTAV_QPAINTERRENDERER_P_H
+
+#include <QtGui/QImage>
+#include <QtGui/QPainter>
+#include "VideoRenderer_p.h"
+
+namespace FAV {
+
+class Q_AV_PRIVATE_EXPORT QPainterRendererPrivate : public VideoRendererPrivate
+{
+public:
+    QPainterRendererPrivate():
+        painter(0)
+    {}
+    virtual ~QPainterRendererPrivate(){
+        if (painter) {
+            delete painter;
+            painter = 0;
+        }
+    }
+    void setupQuality() {
+        switch (quality) {
+        case VideoRenderer::QualityFastest:
+            painter->setRenderHint(QPainter::Antialiasing, false);
+            painter->setRenderHint(QPainter::TextAntialiasing, false);
+            painter->setRenderHint(QPainter::SmoothPixmapTransform, false);
+            painter->setRenderHint(QPainter::HighQualityAntialiasing, false);
+            break;
+        case VideoRenderer::QualityBest:
+        default:
+            painter->setRenderHint(QPainter::Antialiasing, true);
+            painter->setRenderHint(QPainter::TextAntialiasing, true);
+            painter->setRenderHint(QPainter::SmoothPixmapTransform, true);
+            painter->setRenderHint(QPainter::HighQualityAntialiasing, true);
+            break;
+        }
+    }
+
+    // drawPixmap() is faster for on screen painting
+    QPixmap pixmap;
+    QPainter *painter;
+};
+
+} //namespace FAV
+#endif // QTAV_QPAINTERRENDERER_P_H