diff options
Diffstat (limited to 'dimension')
| -rw-r--r-- | dimension/dimension.in | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/dimension/dimension.in b/dimension/dimension.in index 9577d51..bb9f012 100644 --- a/dimension/dimension.in +++ b/dimension/dimension.in @@ -89,12 +89,14 @@ else: raise RuntimeError("range specified in invalid format.") _args.region_x = int(_match.group(1)) _args.region_y = int(_match.group(2)) - _args.region_width = int(_match.group(3)) - _args.region_x - _args.region_height = int(_match.group(4)) - _args.region_y - if _args.region_x + _args.region_width >= _args.width: - raise RuntimeError("region exceeds width of image.") - if _args.region_y + _args.region_height >= _args.height: - raise RuntimeError("region exceeds height of image.") + _region_xmax = int(_match.group(3)) + _region_ymax = int(_match.group(4)) + _args.region_width = _region_xmax - _args.region_x + _args.region_height = _region_ymax - _args.region_y + if _args.region_width <= 0 or _args.region_height <= 0: + raise RuntimeError("region is degenerate.") + if _region_xmax >= _args.width or _region_ymax > _args.height: + raise RuntimeError("region exceeds bounds of image.") # Default output is basename(input).png if _args.output is None: |