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khodowany
2026-10-08 00:07:07 -05:00
parent 841a3f974e
commit 300097a37e
12 changed files with 394 additions and 15 deletions
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generator/engraving/raster.py
+13 -9
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@@ -30,12 +30,14 @@ class OutlinePen(fontTools.pens.basePen.BasePen):
def _endPath(self):
pass
def rasterize_page(page: generator.engraving.types.Page, fonts: generator.engraving.fonts.Fonts) -> PIL.Image.Image:
return rasterize_band(page, page.primitives, 0, page.height, fonts)
def rasterize_page(page: generator.engraving.types.Page, fonts: generator.engraving.fonts.Fonts, *, ink=None, background=None, output_scale=1) -> PIL.Image.Image:
return rasterize_band(page, page.primitives, 0, page.height, fonts, ink=ink, background=background, output_scale=output_scale)
def rasterize_band(page: generator.engraving.types.Page, primitives: tuple[generator.engraving.types.Primitive, ...], top: int, bottom: int, fonts: generator.engraving.fonts.Fonts) -> PIL.Image.Image:
scale = page.supersampling
image = PIL.Image.new('RGB', (page.width * scale, (bottom - top) * scale), generator.theme.rgb('background'))
def rasterize_band(page: generator.engraving.types.Page, primitives: tuple[generator.engraving.types.Primitive, ...], top: int, bottom: int, fonts: generator.engraving.fonts.Fonts, *, ink=None, background=None, output_scale=1) -> PIL.Image.Image:
ink = generator.theme.rgb('ink') if ink is None else ink
background = generator.theme.rgb('background') if background is None else background
scale = page.supersampling * output_scale
image = PIL.Image.new('RGB', (round(page.width * scale), round((bottom - top) * scale)), background)
context = aggdraw.Draw(image)
for item in primitives:
points = [(x * scale, y * scale - top * scale) for x, y in item.points]
@@ -56,16 +58,18 @@ def rasterize_band(page: generator.engraving.types.Page, primitives: tuple[gener
if item.kind == 'polygon':
path.close()
if item.kind in ('glyph', 'polygon'):
context.path(path, None, aggdraw.Brush(generator.theme.rgb('ink')))
context.path(path, None, aggdraw.Brush(ink))
else:
context.path(path, aggdraw.Pen(generator.theme.rgb('ink'), item.thickness * scale))
context.path(path, aggdraw.Pen(ink, item.thickness * scale))
context.flush()
drawing = PIL.ImageDraw.Draw(image)
for item in primitives:
if item.kind == 'text':
x, y = item.points[0]
drawing.text((x * scale, y * scale - top * scale), item.value, font=fonts.text_font(item.size * scale), anchor='ls', fill=generator.theme.rgb('ink'))
return image.resize((page.width, bottom - top), PIL.Image.Resampling.LANCZOS)
drawing.text((x * scale, y * scale - top * scale), item.value, font=fonts.text_font(item.size * scale), anchor='ls', fill=ink)
result = image.resize((round(page.width * output_scale), round((bottom - top) * output_scale)), PIL.Image.Resampling.LANCZOS)
image.close()
return result
@dataclasses.dataclass(frozen=True)
class Band: