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LibGfx: Use ErrorOr<T> for Bitmap::try_load_from_file()

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This was used in a lot of places, so this patch makes liberal use of
ErrorOr<T>::release_value_but_fixme_should_propagate_errors().
This commit is contained in:
Andreas Kling 2021-11-06 16:25:29 +01:00
parent 16f064d9be
commit 235f39e449
104 changed files with 412 additions and 397 deletions
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22
Userland/Libraries/LibGfx/Bitmap.cpp
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@ -110,15 +110,15 @@ ErrorOr<NonnullRefPtr<Bitmap>> Bitmap::try_create_wrapper(BitmapFormat format, I
return adopt_ref(*new Bitmap(format, size, scale_factor, pitch, data));
}
RefPtr<Bitmap> Bitmap::try_load_from_file(String const& path, int scale_factor)
ErrorOr<NonnullRefPtr<Bitmap>> Bitmap::try_load_from_file(String const& path, int scale_factor)
{
int fd = open(path.characters(), O_RDONLY);
if (fd < 0)
return nullptr;
return Error::from_errno(errno);
return try_load_from_fd_and_close(fd, path, scale_factor);
}
RefPtr<Bitmap> Bitmap::try_load_from_fd_and_close(int fd, String const& path, int scale_factor)
ErrorOr<NonnullRefPtr<Bitmap>> Bitmap::try_load_from_fd_and_close(int fd, String const& path, int scale_factor)
{
if (scale_factor > 1 && path.starts_with("/res/")) {
LexicalPath lexical_path { path };
@ -144,20 +144,22 @@ RefPtr<Bitmap> Bitmap::try_load_from_fd_and_close(int fd, String const& path, in
bmp->m_size.set_width(bmp->width() / scale_factor);
bmp->m_size.set_height(bmp->height() / scale_factor);
bmp->m_scale = scale_factor;
return bmp;
return bmp.release_nonnull();
}
}
#define __ENUMERATE_IMAGE_FORMAT(Name, Ext) \
if (path.ends_with(Ext, CaseSensitivity::CaseInsensitive)) { \
auto file = MappedFile::map_from_fd_and_close(fd, path); \
if (!file.is_error()) \
return load_##Name##_from_memory((u8 const*)file.value()->data(), file.value()->size(), path); \
#define __ENUMERATE_IMAGE_FORMAT(Name, Ext) \
if (path.ends_with(Ext, CaseSensitivity::CaseInsensitive)) { \
auto file = MappedFile::map_from_fd_and_close(fd, path); \
if (!file.is_error()) { \
if (auto bitmap = load_##Name##_from_memory((u8 const*)file.value()->data(), file.value()->size(), path)) \
return bitmap.release_nonnull(); \
} \
}
ENUMERATE_IMAGE_FORMATS
#undef __ENUMERATE_IMAGE_FORMAT
return nullptr;
return Error::from_string_literal("Gfx::Bitmap unable to load from fd"sv);
}
Bitmap::Bitmap(BitmapFormat format, IntSize const& size, int scale_factor, size_t pitch, void* data)