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Diffstat (limited to 'examples/gui/openglwindow/openglwindow.cpp')
| -rw-r--r-- | examples/gui/openglwindow/openglwindow.cpp | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/examples/gui/openglwindow/openglwindow.cpp b/examples/gui/openglwindow/openglwindow.cpp deleted file mode 100644 index bac887dca0..0000000000 --- a/examples/gui/openglwindow/openglwindow.cpp +++ /dev/null @@ -1,161 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the documentation of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "openglwindow.h" - -#include <QOpenGLContext> -#include <QOpenGLPaintDevice> -#include <QPainter> - -//! [1] -OpenGLWindow::OpenGLWindow(QWindow *parent) - : QWindow(parent) -{ - setSurfaceType(QWindow::OpenGLSurface); -} -//! [1] - -OpenGLWindow::~OpenGLWindow() -{ - delete m_device; -} -//! [2] -void OpenGLWindow::render(QPainter *painter) -{ - Q_UNUSED(painter); -} - -void OpenGLWindow::initialize() -{ -} - -void OpenGLWindow::render() -{ - if (!m_device) - m_device = new QOpenGLPaintDevice; - - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); - - m_device->setSize(size() * devicePixelRatio()); - m_device->setDevicePixelRatio(devicePixelRatio()); - - QPainter painter(m_device); - render(&painter); -} -//! [2] - -//! [3] -void OpenGLWindow::renderLater() -{ - requestUpdate(); -} - -bool OpenGLWindow::event(QEvent *event) -{ - switch (event->type()) { - case QEvent::UpdateRequest: - renderNow(); - return true; - default: - return QWindow::event(event); - } -} - -void OpenGLWindow::exposeEvent(QExposeEvent *event) -{ - Q_UNUSED(event); - - if (isExposed()) - renderNow(); -} -//! [3] - -//! [4] -void OpenGLWindow::renderNow() -{ - if (!isExposed()) - return; - - bool needsInitialize = false; - - if (!m_context) { - m_context = new QOpenGLContext(this); - m_context->setFormat(requestedFormat()); - m_context->create(); - - needsInitialize = true; - } - - m_context->makeCurrent(this); - - if (needsInitialize) { - initializeOpenGLFunctions(); - initialize(); - } - - render(); - - m_context->swapBuffers(this); - - if (m_animating) - renderLater(); -} -//! [4] - -//! [5] -void OpenGLWindow::setAnimating(bool animating) -{ - m_animating = animating; - - if (animating) - renderLater(); -} -//! [5] - |