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74 lines
2.4 KiB
C++
Executable File
74 lines
2.4 KiB
C++
Executable File
// SPDX-License-Identifier: GPL-3.0-only
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/*
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* Prism Launcher - Minecraft Launcher
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* Copyright (c) 2022 flowln <flowlnlnln@gmail.com>
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*
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* This program 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.
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*
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* This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <QObject>
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#include <QString>
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#include <QTextObjectInterface>
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#include <QUrl>
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#include <memory>
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/** Custom image text object to be used instead of the normal one in ProjectDescriptionPage.
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*
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* Why? Because we want to re-scale images dynamically based on the document's size, in order to
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* not have images being weirdly cropped out in different resolutions.
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*/
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class VariableSizedImageObject final : public QObject, public QTextObjectInterface {
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Q_OBJECT
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Q_INTERFACES(QTextObjectInterface)
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struct ImageMetadata {
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int posInDocument;
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QUrl url;
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QImage image;
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int width;
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int height;
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};
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public:
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QSizeF intrinsicSize(QTextDocument* doc, int posInDocument, const QTextFormat& format) override;
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void drawObject(QPainter* painter, const QRectF& rect, QTextDocument* doc, int posInDocument, const QTextFormat& format) override;
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void setMetaEntry(QString meta_entry) { m_meta_entry = meta_entry; }
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public slots:
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/** Stops all currently loading images from modifying the document.
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*
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* This does not stop the ongoing network tasks, it only prevents their result
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* from impacting the document any further.
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*/
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void flush();
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private:
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/** Adds the image to the document, in the given position.
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*/
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void parseImage(QTextDocument* doc, std::shared_ptr<ImageMetadata> meta);
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/** Loads an image from an external source, and adds it to the document.
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*
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* This uses m_meta_entry to cache the image.
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*/
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void loadImage(QTextDocument* doc, std::shared_ptr<ImageMetadata> meta);
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private:
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QString m_meta_entry;
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QSet<QUrl> m_fetching_images;
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};
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