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100 lines
2.7 KiB
100 lines
2.7 KiB
/*
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* Copyright (C) 2015-2016 Département de l'Instruction Publique (DIP-SEM)
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*
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* Copyright (C) 2013 Open Education Foundation
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*
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* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
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* l'Education Numérique en Afrique (GIP ENA)
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*
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* This file is part of OpenBoard.
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*
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* OpenBoard is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License,
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* with a specific linking exception for the OpenSSL project's
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* "OpenSSL" library (or with modified versions of it that use the
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* same license as the "OpenSSL" library).
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*
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* OpenBoard 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with OpenBoard. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "UBSvgSubsetRasterizer.h"
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#include "domain/UBGraphicsScene.h"
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#include "adaptors/UBSvgSubsetAdaptor.h"
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#include "core/memcheck.h"
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UBSvgSubsetRasterizer::UBSvgSubsetRasterizer(UBDocumentProxy* document, int pageIndex, QObject* parent)
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: QObject(parent)
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, mDocument(document)
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, mPageIndex(pageIndex)
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{
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// NOOP
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}
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UBSvgSubsetRasterizer::~UBSvgSubsetRasterizer()
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{
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// NOOP
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}
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bool UBSvgSubsetRasterizer::rasterizeToFile(const QString& filename)
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{
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if (QFile::exists(filename))
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{
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if (!QFile::remove(filename))
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return false;
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}
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UBGraphicsScene* scene = UBSvgSubsetAdaptor::loadScene(mDocument, mPageIndex);
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if (!scene)
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return false;
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QRectF sceneRect = scene->normalizedSceneRect();
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qreal width = sceneRect.width();
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qreal height = sceneRect.height();
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QImage image(width, height, QImage::Format_ARGB32);
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QRectF imageRect(0, 0, width, height);
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QPainter painter(&image);
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painter.setRenderHint(QPainter::Antialiasing, true);
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painter.setRenderHint(QPainter::SmoothPixmapTransform, true);
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if (scene->isDarkBackground())
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{
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painter.fillRect(imageRect, Qt::black);
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}
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else
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{
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painter.fillRect(imageRect, Qt::white);
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}
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scene->setRenderingQuality(UBItem::RenderingQualityHigh);
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scene->setRenderingContext(UBGraphicsScene::NonScreen);
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scene->render(&painter, imageRect, sceneRect, Qt::KeepAspectRatio);
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scene->setRenderingQuality(UBItem::RenderingQualityNormal);
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scene->setRenderingContext(UBGraphicsScene::Screen);
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bool success = image.save(filename, "JPG", 100);
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delete scene;
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return success;
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}
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