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PixelPaint: Add simple "Crop Image to Content" feature

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This command finds the smallest non-empty content bounding rect
by looking for the outermost non-transparent pixels in the image,
and then crops the image to that rect.

It's implemented in a pretty naive way, but it's a start. :^)
This commit is contained in:
Andreas Kling 2022-08-23 21:33:52 +02:00
parent 5ded6904d8
commit 34a09bbb54
5 changed files with 83 additions and 0 deletions
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2
Userland/Applications/PixelPaint/Layer.h
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@ -61,6 +61,8 @@ public:
void resize(Gfx::IntRect const& new_rect, Gfx::Painter::ScalingMode scaling_mode);
void resize(Gfx::IntSize const& new_size, Gfx::IntPoint const& new_location, Gfx::Painter::ScalingMode scaling_mode);
Optional<Gfx::IntRect> nonempty_content_bounding_rect() const;
ErrorOr<void> try_set_bitmaps(NonnullRefPtr<Gfx::Bitmap> content, RefPtr<Gfx::Bitmap> mask);
void did_modify_bitmap(Gfx::IntRect const& = {});