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LibPDF+PDFViewer: Extract Renderer::apply_page_rotation()
No behavior change.
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3 changed files with 15 additions and 9 deletions
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@ -50,6 +50,18 @@ PDFErrorsOr<void> Renderer::render(Document& document, Page const& page, RefPtr<
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return Renderer(document, page, bitmap, background_color, rendering_preferences).render();
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}
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ErrorOr<NonnullRefPtr<Gfx::Bitmap>> Renderer::apply_page_rotation(NonnullRefPtr<Gfx::Bitmap> bitmap, Page const& page, int extra_degrees)
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{
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int rotation_count = ((page.rotate + extra_degrees) / 90) % 4;
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if (rotation_count == 1)
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bitmap = TRY(bitmap->rotated(Gfx::RotationDirection::Clockwise));
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else if (rotation_count == 2)
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bitmap = TRY(bitmap->rotated(Gfx::RotationDirection::Flip));
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else if (rotation_count == 3)
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bitmap = TRY(bitmap->rotated(Gfx::RotationDirection::CounterClockwise));
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return bitmap;
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}
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static void rect_path(Gfx::Path& path, float x, float y, float width, float height)
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{
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path.move_to({ x, y });
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