90 lines
1.7 KiB
C++
90 lines
1.7 KiB
C++
#include "openglwindow.h"
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#include <QCoreApplication>
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#include <QOpenGLContext>
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#include <QOpenGLPaintDevice>
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#include <QPainter>
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OpenGLWindow::OpenGLWindow(QWindow *parent)
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: QWindow(parent)
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, m_animating(false)
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, m_context(0)
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, m_device(0)
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{
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setFlag(Qt::FramelessWindowHint);
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setSurfaceType(QWindow::OpenGLSurface);
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}
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OpenGLWindow::~OpenGLWindow() {
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delete m_device;
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}
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void OpenGLWindow::render(QPainter *painter) {
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}
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void OpenGLWindow::initialize() {
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}
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void OpenGLWindow::render() {
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// if (!m_device) m_device = new QOpenGLPaintDevice;
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// glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
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// m_device->setSize(size() * devicePixelRatio());
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// m_device->setDevicePixelRatio(devicePixelRatio());
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// QPainter painter(m_device);
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// render(&painter);
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}
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void OpenGLWindow::renderLater() {
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requestUpdate();
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}
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bool OpenGLWindow::event(QEvent *event) {
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switch (event->type()) {
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case QEvent::UpdateRequest:
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renderNow();
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return true;
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default:
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return QWindow::event(event);
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}
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}
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void OpenGLWindow::exposeEvent(QExposeEvent *event) {
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if (isExposed()) renderNow();
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}
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void OpenGLWindow::renderNow() {
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if (!isExposed())
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return;
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bool needsInitialize = false;
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if (!m_context) {
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m_context = new QOpenGLContext(this);
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m_context->setFormat(requestedFormat());
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m_context->create();
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needsInitialize = true;
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}
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m_context->makeCurrent(this);
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if (needsInitialize) {
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initializeOpenGLFunctions();
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initialize();
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}
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render();
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m_context->swapBuffers(this);
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if (m_animating)
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renderLater();
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}
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void OpenGLWindow::setAnimating(bool animating) {
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m_animating = animating;
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if (animating) renderLater();
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}
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