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| author | Mehmet Samet Duman <yongdohyun@projecttick.org> | 2026-04-02 18:51:45 +0300 |
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| committer | Mehmet Samet Duman <yongdohyun@projecttick.org> | 2026-04-02 18:51:45 +0300 |
| commit | d3261e64152397db2dca4d691a990c6bc2a6f4dd (patch) | |
| tree | fac2f7be638651181a72453d714f0f96675c2b8b /archived/projt-launcher/launcher/PngReader.h | |
| parent | 31b9a8949ed0a288143e23bf739f2eb64fdc63be (diff) | |
| download | Project-Tick-d3261e64152397db2dca4d691a990c6bc2a6f4dd.tar.gz Project-Tick-d3261e64152397db2dca4d691a990c6bc2a6f4dd.zip | |
NOISSUE add archived projects
Signed-off-by: Mehmet Samet Duman <yongdohyun@projecttick.org>
Diffstat (limited to 'archived/projt-launcher/launcher/PngReader.h')
| -rw-r--r-- | archived/projt-launcher/launcher/PngReader.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/archived/projt-launcher/launcher/PngReader.h b/archived/projt-launcher/launcher/PngReader.h new file mode 100644 index 0000000000..088ec6c37e --- /dev/null +++ b/archived/projt-launcher/launcher/PngReader.h @@ -0,0 +1,83 @@ +// SPDX-License-Identifier: GPL-3.0-only +// SPDX-FileCopyrightText: 2026 Project Tick +// SPDX-FileContributor: Project Tick Team +/* + * ProjT Launcher - Minecraft Launcher + * Copyright (C) 2026 Project Tick + * + * 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, version 3. + * + * 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, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#pragma once + +#include <QByteArray> +#include <QImage> +#include <QString> + +/** + * @brief PNG reader using the bundled libpng and zlib + * + * This class provides PNG reading functionality using the project's own + * libpng and zlib implementations, avoiding conflicts with system libraries. + * + * Qt's QImage uses the system libpng which may be compiled with a different + * zlib version, causing "unsupported zlib version" errors. This class + * bypasses that by using our bundled libraries directly. + */ +class PngReader +{ + public: + /** + * @brief Read a PNG image from a file + * @param filePath Path to the PNG file + * @return QImage containing the decoded image, or null QImage on failure + */ + static QImage readFromFile(const QString& filePath); + + /** + * @brief Read a PNG image from memory + * @param data PNG data in memory + * @return QImage containing the decoded image, or null QImage on failure + */ + static QImage readFromData(const QByteArray& data); + + /** + * @brief Check if a file is a valid PNG + * @param filePath Path to the file + * @return true if the file has a valid PNG signature + */ + static bool isPngFile(const QString& filePath); + + /** + * @brief Check if data is valid PNG + * @param data Data to check + * @return true if the data has a valid PNG signature + */ + static bool isPngData(const QByteArray& data); + + /** + * @brief Get the last error message + * @return Error message from the last failed operation + */ + static QString lastError(); + + /** + * @brief Set the last error message (for internal use by callbacks) + * @param error Error message + */ + static void setLastError(const QString& error); + + private: + static QString s_lastError; +}; |
