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LibGfx: Add BitmapPaintStyle

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This is a simple paint style for filling a path with a bitmap.
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MacDue 2023-04-07 02:15:02 +01:00 committed by Linus Groh
parent 5faa0014f2
commit 064ca625df
Notes: sideshowbarker 2024-07-18 22:57:59 +09:00 
Author: https://github.com/MacDue
Commit: https://github.com/SerenityOS/serenity/commit/064ca625df
Pull-request: https://github.com/SerenityOS/serenity/pull/18212
Reviewed-by: https://github.com/Lubrsi
Reviewed-by: https://github.com/awesomekling
Reviewed-by: https://github.com/linusg
1 changed files with 27 additions and 0 deletions
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27
Userland/Libraries/LibGfx/PaintStyle.h
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@ -12,6 +12,7 @@
#include <AK/RefCounted.h>
#include <AK/RefPtr.h>
#include <AK/Vector.h>
#include <LibGfx/Bitmap.h>
#include <LibGfx/Color.h>
#include <LibGfx/Forward.h>
#include <LibGfx/Gradients.h>
@ -59,6 +60,32 @@ private:
Color m_color;
};
class BitmapPaintStyle : public PaintStyle {
public:
static ErrorOr<NonnullRefPtr<BitmapPaintStyle>> create(Bitmap const& bitmap, IntPoint offset = {})
{
return adopt_nonnull_ref_or_enomem(new (nothrow) BitmapPaintStyle(bitmap, offset));
}
virtual Color sample_color(IntPoint point) const override
{
point += m_offset;
if (m_bitmap->rect().contains(point))
return m_bitmap->get_pixel(point);
return Color();
}
private:
BitmapPaintStyle(Bitmap const& bitmap, IntPoint offset)
: m_bitmap(bitmap)
, m_offset(offset)
{
}
NonnullRefPtr<Bitmap const> m_bitmap;
IntPoint m_offset;
};
class GradientPaintStyle : public PaintStyle {
public:
ErrorOr<void> add_color_stop(float position, Color color, Optional<float> transition_hint = {})