mirror of
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76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
/*
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* Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "ProjectLoader.h"
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#include "Image.h"
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#include "Layer.h"
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#include <AK/JsonObject.h>
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#include <AK/MappedFile.h>
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#include <AK/Result.h>
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#include <AK/String.h>
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#include <LibCore/File.h>
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#include <LibImageDecoderClient/Client.h>
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namespace PixelPaint {
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Result<void, String> ProjectLoader::try_load_from_fd_and_close(int fd, StringView path)
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{
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auto file = Core::File::construct();
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file->open(fd, Core::OpenMode::ReadOnly, Core::File::ShouldCloseFileDescriptor::No);
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if (file->has_error())
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return String { file->error_string() };
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auto contents = file->read_all();
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auto json_or_error = JsonValue::from_string(contents);
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if (!json_or_error.has_value()) {
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m_is_raw_image = true;
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auto file_or_error = MappedFile::map_from_fd_and_close(fd, path);
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if (file_or_error.is_error())
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return String::formatted("Unable to mmap file {}", file_or_error.error().string());
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auto& mapped_file = *file_or_error.value();
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// FIXME: Find a way to avoid the memory copy here.
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auto bitmap = Image::try_decode_bitmap(mapped_file.bytes());
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if (!bitmap)
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return String { "Unable to decode image"sv };
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auto image = Image::try_create_from_bitmap(bitmap.release_nonnull());
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if (!image)
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return String { "Unable to allocate Image"sv };
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image->set_path(path);
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m_image = image;
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return {};
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}
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close(fd);
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auto& json = json_or_error.value().as_object();
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auto image_or_error = Image::try_create_from_pixel_paint_json(json);
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if (image_or_error.is_error())
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return image_or_error.release_error();
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auto image = image_or_error.release_value();
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image->set_path(path);
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if (json.has("guides"))
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m_json_metadata = json.get("guides").as_array();
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m_image = image;
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return {};
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}
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Result<void, String> ProjectLoader::try_load_from_path(StringView path)
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{
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auto file_or_error = Core::File::open(path, Core::OpenMode::ReadOnly);
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if (file_or_error.is_error())
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return String::formatted("Unable to open file because: {}", file_or_error.release_error());
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return try_load_from_fd_and_close(file_or_error.release_value()->leak_fd(), path);
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}
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}
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