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

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This commit is contained in:
Andreas Kling 2021-11-06 13:11:20 +01:00
parent 5e41c70e83
commit 8262bbf624
6 changed files with 26 additions and 14 deletions
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2
Userland/Applications/MouseSettings/ThemeWidget.cpp
View file

@ -66,7 +66,7 @@ void MouseCursorModel::invalidate()
auto cursor_bitmap = Gfx::Bitmap::try_load_from_file(cursor.path);
auto cursor_bitmap_rect = cursor_bitmap->rect();
cursor.params = Gfx::CursorParams::parse_from_filename(cursor.name, cursor_bitmap_rect.center()).constrained(*cursor_bitmap);
cursor.bitmap = cursor_bitmap->cropped(Gfx::IntRect(Gfx::FloatRect(cursor_bitmap_rect).scaled(1.0 / cursor.params.frames(), 1.0)));
cursor.bitmap = cursor_bitmap->cropped(Gfx::IntRect(Gfx::FloatRect(cursor_bitmap_rect).scaled(1.0 / cursor.params.frames(), 1.0))).release_value_but_fixme_should_propagate_errors();
m_cursors.append(move(cursor));
}

8
Userland/Applications/PixelPaint/Image.cpp
View file

@ -187,7 +187,10 @@ RefPtr<Gfx::Bitmap> Image::try_copy_bitmap(Selection const& selection) const
if (!full_bitmap)
return {};
return full_bitmap->cropped(selection_rect);
auto cropped_bitmap_or_error = full_bitmap->cropped(selection_rect);
if (cropped_bitmap_or_error.is_error())
return nullptr;
return cropped_bitmap_or_error.release_value_but_fixme_should_propagate_errors();
}
Result<void, String> Image::export_bmp_to_fd_and_close(int fd, bool preserve_alpha_channel)
@ -529,8 +532,7 @@ void Image::rotate(Gfx::RotationDirection direction)
void Image::crop(Gfx::IntRect const& cropped_rect)
{
for (auto& layer : m_layers) {
auto cropped = layer.bitmap().cropped(cropped_rect);
VERIFY(cropped);
auto cropped = layer.bitmap().cropped(cropped_rect).release_value_but_fixme_should_propagate_errors();
layer.set_bitmap(*cropped);
layer.did_modify_bitmap(rect());
}

2
Userland/Demos/WidgetGallery/GalleryModels.h
View file

@ -77,7 +77,7 @@ public:
auto cursor_bitmap_rect = cursor_bitmap->rect();
cursor.params = Gfx::CursorParams::parse_from_filename(cursor.name, cursor_bitmap_rect.center()).constrained(*cursor_bitmap);
cursor.bitmap = cursor_bitmap->cropped(Gfx::IntRect(Gfx::FloatRect(cursor_bitmap_rect).scaled(1.0 / cursor.params.frames(), 1.0)));
cursor.bitmap = cursor_bitmap->cropped(Gfx::IntRect(Gfx::FloatRect(cursor_bitmap_rect).scaled(1.0 / cursor.params.frames(), 1.0))).release_value_but_fixme_should_propagate_errors();
m_cursors.append(move(cursor));
}

10
Userland/Libraries/LibGfx/Bitmap.cpp
View file

@ -511,11 +511,13 @@ ErrorOr<NonnullRefPtr<Gfx::Bitmap>> Bitmap::scaled(float sx, float sy) const
return new_bitmap.release_nonnull();
}
RefPtr<Gfx::Bitmap> Bitmap::cropped(Gfx::IntRect crop) const
ErrorOr<NonnullRefPtr<Gfx::Bitmap>> Bitmap::cropped(Gfx::IntRect crop) const
{
auto new_bitmap = Gfx::Bitmap::try_create(format(), { crop.width(), crop.height() }, 1);
if (!new_bitmap)
return nullptr;
if (!new_bitmap) {
// FIXME: Propagate the *real* error, once we have it.
return Error::from_errno(ENOMEM);
}
for (int y = 0; y < crop.height(); ++y) {
for (int x = 0; x < crop.width(); ++x) {
@ -528,7 +530,7 @@ RefPtr<Gfx::Bitmap> Bitmap::cropped(Gfx::IntRect crop) const
}
}
}
return new_bitmap;
return new_bitmap.release_nonnull();
}
RefPtr<Bitmap> Bitmap::to_bitmap_backed_by_anonymous_buffer() const

2
Userland/Libraries/LibGfx/Bitmap.h
View file

@ -115,7 +115,7 @@ public:
ErrorOr<NonnullRefPtr<Gfx::Bitmap>> flipped(Gfx::Orientation) const;
ErrorOr<NonnullRefPtr<Gfx::Bitmap>> scaled(int sx, int sy) const;
ErrorOr<NonnullRefPtr<Gfx::Bitmap>> scaled(float sx, float sy) const;
[[nodiscard]] RefPtr<Gfx::Bitmap> cropped(Gfx::IntRect) const;
ErrorOr<NonnullRefPtr<Gfx::Bitmap>> cropped(Gfx::IntRect) const;
[[nodiscard]] RefPtr<Bitmap> to_bitmap_backed_by_anonymous_buffer() const;
[[nodiscard]] ByteBuffer serialize_to_byte_buffer() const;

16
Userland/Services/WindowServer/ClientConnection.cpp
View file

@ -974,8 +974,12 @@ Messages::WindowServer::GetScreenBitmapResponse ClientConnection::get_screen_bit
return { Gfx::ShareableBitmap() };
}
if (rect.has_value()) {
auto bitmap = Compositor::the().front_bitmap_for_screenshot({}, *screen).cropped(rect.value());
return bitmap->to_shareable_bitmap();
auto bitmap_or_error = Compositor::the().front_bitmap_for_screenshot({}, *screen).cropped(rect.value());
if (bitmap_or_error.is_error()) {
dbgln("get_screen_bitmap: Failed to crop screenshot: {}", bitmap_or_error.error());
return { Gfx::ShareableBitmap() };
}
return bitmap_or_error.release_value()->to_shareable_bitmap();
}
auto& bitmap = Compositor::the().front_bitmap_for_screenshot({}, *screen);
return bitmap.to_shareable_bitmap();
@ -1022,8 +1026,12 @@ Messages::WindowServer::GetScreenBitmapAroundCursorResponse ClientConnection::ge
if (intersecting_with_screens == 1) {
auto& screen = Screen::closest_to_rect(rect);
auto crop_rect = rect.translated(-screen.rect().location()) * screen_scale_factor;
auto bitmap = Compositor::the().front_bitmap_for_screenshot({}, screen).cropped(crop_rect);
return bitmap->to_shareable_bitmap();
auto bitmap_or_error = Compositor::the().front_bitmap_for_screenshot({}, screen).cropped(crop_rect);
if (bitmap_or_error.is_error()) {
dbgln("get_screen_bitmap_around_cursor: Failed to crop screenshot: {}", bitmap_or_error.error());
return { {} };
}
return bitmap_or_error.release_value()->to_shareable_bitmap();
}
if (auto bitmap = Gfx::Bitmap::try_create(Gfx::BitmapFormat::BGRx8888, rect.size(), 1)) {