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PixelPaint: Use source alpha for CloneTool drawing

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Prior to this change when using CloneTool on a transparent background
the output was a solid black brush stroke. Now it is based on the
source content alpha as well as it's color blended with the target.
This commit is contained in:
Cody Hein 2022-12-11 18:26:50 -07:00 committed by Andreas Kling
parent ceb118e1fa
commit 8855334fcc
Notes: sideshowbarker 2024-07-17 03:19:51 +09:00 
Author: https://github.com/skmagiik
Commit: https://github.com/SerenityOS/serenity/commit/8855334fcc
Pull-request: https://github.com/SerenityOS/serenity/pull/16442
1 changed files with 1 additions and 1 deletions
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2
Userland/Applications/PixelPaint/Tools/CloneTool.cpp
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@ -39,7 +39,7 @@ void CloneTool::draw_point(Gfx::Bitmap& bitmap, Gfx::Color, Gfx::IntPoint point)
auto falloff = get_falloff(distance); auto falloff = get_falloff(distance);
auto pixel_color = bitmap.get_pixel(source_x, source_y); auto pixel_color = bitmap.get_pixel(source_x, source_y);
pixel_color.set_alpha(falloff * 255); pixel_color.set_alpha(falloff * pixel_color.alpha());
bitmap.set_pixel(target_x, target_y, bitmap.get_pixel(target_x, target_y).blend(pixel_color)); bitmap.set_pixel(target_x, target_y, bitmap.get_pixel(target_x, target_y).blend(pixel_color));
} }
} }