91 lines
3.0 KiB
C++
91 lines
3.0 KiB
C++
/******************************************************************************
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QtAV: Multimedia framework based on Qt and FFmpeg
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Copyright (C) 2012-2016 Wang Bin <wbsecg1@gmail.com>
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* This file is part of QtAV (from 2014)
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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******************************************************************************/
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#include "OpenGLWidgetRenderer.h"
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#include "../OpenGLRendererBase_p.h"
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#include <QtGui/QGuiApplication>
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#include <QtGui/QResizeEvent>
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#include <QtGui/QScreen>
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namespace FAV {
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class OpenGLWidgetRendererPrivate : public OpenGLRendererBasePrivate
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{
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public:
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OpenGLWidgetRendererPrivate(QPaintDevice *pd)
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: OpenGLRendererBasePrivate(pd)
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{}
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};
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VideoRendererId OpenGLWidgetRenderer::id() const
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{
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return VideoRendererId_OpenGLWidget;
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}
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OpenGLWidgetRenderer::OpenGLWidgetRenderer(QWidget *parent, Qt::WindowFlags f):
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QOpenGLWidget(parent, f)
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, OpenGLRendererBase(*new OpenGLWidgetRendererPrivate(this))
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{
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setAcceptDrops(true);
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setFocusPolicy(Qt::StrongFocus);
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}
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void OpenGLWidgetRenderer::initializeGL()
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{
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onInitializeGL();
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}
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void OpenGLWidgetRenderer::paintGL()
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{
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onPaintGL();
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}
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void OpenGLWidgetRenderer::resizeGL(int w, int h)
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{
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// QGLWidget uses window()->windowHandle()->devicePixelRatio() for resizeGL(), while QOpenGLWidget does not, so scale here
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#if QT_VERSION >= QT_VERSION_CHECK(5, 5, 0)
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if (!context())
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return;
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const qreal dpr = context()->screen()->devicePixelRatio();
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#elif QT_VERSION >= QT_VERSION_CHECK(5, 1, 0)
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// qApp->devicePixelRatio() is global, window()->windowHandle()->devicePixelRatio() depends on screen, check window() and windowHandle() is required.
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// QWidget.devicePixelRatio() is int, but float value is not implemented in old qt, so just use int is fine.
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const qreal dpr = devicePixelRatio();
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#else
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const qreal dpr = qApp->devicePixelRatio();
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#endif
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onResizeGL(w*dpr, h*dpr);
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}
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void OpenGLWidgetRenderer::resizeEvent(QResizeEvent *e)
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{
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onResizeEvent(e->size().width(), e->size().height());
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QOpenGLWidget::resizeEvent(e); //will call resizeGL(). TODO:will call paintEvent()?
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}
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void OpenGLWidgetRenderer::showEvent(QShowEvent *e)
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{
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Q_UNUSED(e);
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onShowEvent(); // TODO: onShowEvent(w, h)?
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resizeGL(width(), height());
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}
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} //namespace FAV
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