| /**************************************************************************** |
| ** |
| ** Copyright (C) 2017 The Qt Company Ltd. |
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| ** This file is part of the examples of the Qt Wayland module |
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| ** $QT_BEGIN_LICENSE:BSD$ |
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| ****************************************************************************/ |
| |
| #include "window.h" |
| #include "compositor.h" |
| |
| #include <QPainter> |
| #include <QMatrix4x4> |
| #include <QOpenGLFunctions> |
| #include <QOpenGLTexture> |
| #include <QMouseEvent> |
| |
| Window::Window() |
| { |
| } |
| |
| void Window::setCompositor(Compositor *comp) { |
| m_compositor = comp; |
| } |
| |
| void Window::initializeGL() |
| { |
| m_textureBlitter.create(); |
| emit glReady(); |
| } |
| |
| void Window::paintGL() |
| { |
| m_compositor->startRender(); |
| |
| QOpenGLFunctions *functions = context()->functions(); |
| functions->glClearColor(.4f, .7f, .1f, 0.5f); |
| functions->glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
| |
| GLenum currentTarget = GL_TEXTURE_2D; |
| m_textureBlitter.bind(currentTarget); |
| functions->glEnable(GL_BLEND); |
| functions->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
| |
| const auto views = m_compositor->views(); |
| for (View *view : views) { |
| auto texture = view->getTexture(); |
| if (!texture) |
| continue; |
| if (texture->target() != currentTarget) { |
| currentTarget = texture->target(); |
| m_textureBlitter.bind(currentTarget); |
| } |
| GLuint textureId = texture->textureId(); |
| QWaylandSurface *surface = view->surface(); |
| if (surface && surface->hasContent()) { |
| QSize s = surface->destinationSize(); |
| view->initPosition(size(), s); |
| QPointF pos = view->globalPosition(); |
| QRectF surfaceGeometry(pos, s); |
| QOpenGLTextureBlitter::Origin surfaceOrigin = |
| view->currentBuffer().origin() == QWaylandSurface::OriginTopLeft |
| ? QOpenGLTextureBlitter::OriginTopLeft |
| : QOpenGLTextureBlitter::OriginBottomLeft; |
| QMatrix4x4 targetTransform = QOpenGLTextureBlitter::targetTransform(surfaceGeometry, QRect(QPoint(), size())); |
| m_textureBlitter.blit(textureId, targetTransform, surfaceOrigin); |
| } |
| } |
| m_textureBlitter.release(); |
| m_compositor->endRender(); |
| } |
| |
| void Window::mousePressEvent(QMouseEvent *event) |
| { |
| m_compositor->handleMousePress(event->localPos().toPoint(), event->button()); |
| } |
| |
| void Window::mouseReleaseEvent(QMouseEvent *event) |
| { |
| m_compositor->handleMouseRelease(event->localPos().toPoint(), event->button(), event->buttons()); |
| } |
| |
| void Window::mouseMoveEvent(QMouseEvent *event) |
| { |
| m_compositor->handleMouseMove(event->localPos().toPoint()); |
| } |
| |
| void Window::wheelEvent(QWheelEvent *event) |
| { |
| m_compositor->handleMouseWheel(event->angleDelta()); |
| } |
| |
| void Window::keyPressEvent(QKeyEvent *e) |
| { |
| m_compositor->handleKeyPress(e->nativeScanCode()); |
| } |
| |
| void Window::keyReleaseEvent(QKeyEvent *e) |
| { |
| m_compositor->handleKeyRelease(e->nativeScanCode()); |
| } |