async def preview_template(t, zoom, fetch):
"""Get a preview image from a template.
Arguments:
t - A template object.
zoom - The factor to zoom by, integer.
fetch - A fetching function.
Returns:
The preview, as a PIL Image object.
"""
log.info("(X:{0} | Y:{1} | Dim:{2}x{3} | Zoom:{4})".format(t.x, t.y, t.width, t.height, zoom))
dim = Coords(t.width, t.height)
if zoom < -1:
dim *= abs(zoom)
c = Coords(*t.center())
preview_img = await fetch(c.x - dim.x // 2, c.y - dim.y // 2, *dim)
if zoom > 1:
preview_img = preview_img.resize(tuple(zoom * x for x in preview_img.size), Image.NEAREST)
tlp = Coords(preview_img.width // 2 - config.PREVIEW_W // 2, preview_img.height // 2 - config.PREVIEW_H // 2)
preview_img = preview_img.crop((*tlp, tlp.x + config.PREVIEW_W, tlp.y + config.PREVIEW_H))
return preview_img
async def preview(x, y, zoom, fetch):
"""Get a preview image from coordinates.
Arguments:
x - The x coord, integer.
y - The y coord, integer.
zoom - The factor to zoom by, integer.
fetch - A fetching function.
Returns:
The preview, as a PIL Image object.
"""
log.info("(X:{0} | Y:{1} | Zoom:{2})".format(x, y, zoom))
dim = Coords(config.PREVIEW_W, config.PREVIEW_H)
if zoom < -1:
dim *= abs(zoom)
preview_img = await fetch(x - dim.x // 2, y - dim.y // 2, *dim)
if zoom > 1:
preview_img = preview_img.resize(tuple(zoom * x for x in preview_img.size), Image.NEAREST)
tlp = Coords(preview_img.width // 2 - config.PREVIEW_W // 2, preview_img.height // 2 - config.PREVIEW_H // 2)
preview_img = preview_img.crop((*tlp, tlp.x + config.PREVIEW_W, tlp.y + config.PREVIEW_H))
if config.INVERT:
preview_img = ImageOps.invert(preview_img)
return preview_img
async def preview_template(t, zoom, fetch):
log.info("(X:{0} | Y:{1} | Dim:{2}x{3} | Zoom:{4})".format(t.x, t.y, t.width, t.height, zoom))
dim = Coords(t.width, t.height)
if zoom < -1:
dim *= abs(zoom)
c = Coords(*t.center())
preview_img = await fetch(c.x - dim.x // 2, c.y - dim.y // 2, *dim)
if zoom > 1:
preview_img = preview_img.resize(tuple(zoom * x for x in preview_img.size), Image.NEAREST)
tlp = Coords(preview_img.width // 2 - config.PREVIEW_W // 2, preview_img.height // 2 - config.PREVIEW_H // 2)
preview_img = preview_img.crop((*tlp, tlp.x + config.PREVIEW_W, tlp.y + config.PREVIEW_H))
return preview_img
async def preview(x, y, zoom, fetch):
log.info("(X:{0} | Y:{1} | Zoom:{2})".format(x, y, zoom))
dim = Coords(config.PREVIEW_W, config.PREVIEW_H)
if zoom < -1:
dim *= abs(zoom)
preview_img = await fetch(x - dim.x // 2, y - dim.y // 2, *dim)
if zoom > 1:
preview_img = preview_img.resize(tuple(zoom * x for x in preview_img.size), Image.NEAREST)
tlp = Coords(preview_img.width // 2 - config.PREVIEW_W // 2, preview_img.height // 2 - config.PREVIEW_H // 2)
preview_img = preview_img.crop((*tlp, tlp.x + config.PREVIEW_W, tlp.y + config.PREVIEW_H))
if config.INVERT:
preview_img = ImageOps.invert(preview_img)
return preview_img