/* * Copyright (C) 2020 by Savoir-faire Linux * Author: Andreas Traczyk <andreas.traczyk@savoirfairelinux.com> * Author: Mingrui Zhang <mingrui.zhang@savoirfairelinux.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "previewrenderer.h" #include "lrcinstance.h" PreviewRenderer::PreviewRenderer(QQuickItem* parent) : QQuickPaintedItem(parent) { setAntialiasing(true); setFillColor(Qt::black); setRenderTarget(QQuickPaintedItem::FramebufferObject); setPerformanceHint(QQuickPaintedItem::FastFBOResizing); previewFrameUpdatedConnection_ = connect(LRCInstance::renderer(), &RenderManager::previewFrameUpdated, [this]() { update(QRect(0, 0, width(), height())); }); previewRenderingStopped_ = connect(LRCInstance::renderer(), &RenderManager::previewRenderingStopped, [this]() { update(QRect(0, 0, width(), height())); }); } PreviewRenderer::~PreviewRenderer() { disconnect(previewFrameUpdatedConnection_); disconnect(previewRenderingStopped_); } void PreviewRenderer::paint(QPainter* painter) { auto previewImage = LRCInstance::renderer()->getPreviewFrame(); if (previewImage) { QImage scaledPreview; auto aspectRatio = static_cast<qreal>(previewImage->width()) / static_cast<qreal>(previewImage->height()); auto previewHeight = height(); auto previewWidth = previewHeight * aspectRatio; /* Instead of setting fixed size, we could get an x offset for the preview * but this would render the horizontal spacers in the parent widget useless. * e.g. * auto parent = qobject_cast<QWidget*>(this->parent()); * auto xPos = (parent->width() - previewWidth) / 2; * setGeometry(QRect(QPoint(xPos, this->pos().y()), QSize(previewWidth, previewHeight))); */ setWidth(previewWidth); setHeight(previewHeight); scaledPreview = previewImage->scaled(size().toSize(), Qt::KeepAspectRatio); painter->drawImage(QRect(0, 0, scaledPreview.width(), scaledPreview.height()), scaledPreview); } } VideoCallPreviewRenderer::VideoCallPreviewRenderer(QQuickItem* parent) : PreviewRenderer(parent) {} VideoCallPreviewRenderer::~VideoCallPreviewRenderer() {} qreal VideoCallPreviewRenderer::getPreviewImageScalingFactor() { auto previewImage = LRCInstance::renderer()->getPreviewFrame(); if (previewImage) { return static_cast<qreal>(previewImage->height()) / static_cast<qreal>(previewImage->width()); } return 1.0; } void VideoCallPreviewRenderer::paint(QPainter* painter) { auto previewImage = LRCInstance::renderer()->getPreviewFrame(); if (previewImage) { emit previewImageAvailable(); QImage scaledPreview; scaledPreview = previewImage->scaled(size().toSize(), Qt::KeepAspectRatio); painter->drawImage(QRect(0, 0, scaledPreview.width(), scaledPreview.height()), scaledPreview); } } PhotoboothPreviewRender::PhotoboothPreviewRender(QQuickItem* parent) : PreviewRenderer(parent) { connect(LRCInstance::renderer(), &RenderManager::previewRenderingStopped, [this]() { emit hideBooth(); }); } PhotoboothPreviewRender::~PhotoboothPreviewRender() {} QImage PhotoboothPreviewRender::takePhoto() { if (auto previewImage = LRCInstance::renderer()->getPreviewFrame()) { return previewImage->copy(); } return QImage(); } QString PhotoboothPreviewRender::takeCroppedPhotoToBase64(int size) { auto image = Utils::cropImage(takePhoto()); auto avatar = image.scaled(size, size, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation); return QString::fromLatin1(Utils::QImageToByteArray(avatar).toBase64().data()); } void PhotoboothPreviewRender::paint(QPainter* painter) { painter->setRenderHint(QPainter::Antialiasing, true); auto previewImage = LRCInstance::renderer()->getPreviewFrame(); if (previewImage) { QImage scaledPreview; scaledPreview = Utils::getCirclePhoto(*previewImage, height() <= width() ? height() : width()); painter->drawImage(QRect(0, 0, scaledPreview.width(), scaledPreview.height()), scaledPreview); } }