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LibGfx: Improve ImageDecoder construction

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Previously, ImageDecoder::create() would return a NonnullRefPtr and
could not "fail", although the returned decoder may be "invalid" which
you then had to check anyway.

The new interface looks like this:

    static RefPtr<Gfx::ImageDecoder> try_create(ReadonlyBytes);

This simplifies ImageDecoder since it no longer has to worry about its
validity. Client code gets slightly clearer as well.
This commit is contained in:
Andreas Kling 2021-07-27 01:12:53 +02:00
commit d01b4327fa
Notes: sideshowbarker 2024-07-18 08:16:55 +09:00
6 changed files with 77 additions and 58 deletions
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4
Userland/Libraries/LibGUI/ImageWidget.cpp
View file

@ -78,7 +78,9 @@ void ImageWidget::load_from_file(const StringView& path)
return;
auto& mapped_file = *file_or_error.value();
m_image_decoder = Gfx::ImageDecoder::create((const u8*)mapped_file.data(), mapped_file.size());
m_image_decoder = Gfx::ImageDecoder::try_create(mapped_file.bytes());
VERIFY(m_image_decoder);
auto bitmap = m_image_decoder->bitmap();
VERIFY(bitmap);