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jackie_w · 12-26-2019, 07:03 AM

Win10 running in debug mode from source with a fully up-to-date 4.99.2

I think I've found a bug in the Editor when editing an image. These steps will reproduce it:

Open any epub and open an HTML page containing either a JPG or a PNG, so that the image is visible in the Preview window.
Right-click the image name and select 'Open'.
Rotate the image (or use the Trim tool).

The image disappears from Preview and debug shows this error message:

Code:

Turning on automatic hidpi scaling
devicePixelRatio: 1.0
logicalDpi: 96.0 x 96.0
physicalDpi: 127.66492146596858 x 127.59069767441859
Using calibre Qt style: True
calibre css_parser 1.0.4
lxml etree: 4.3.3
Traceback (most recent call last):
  File "preview.py", line 192, in requestStarted
  File "preview.py", line 50, in get_data
  File "image.py", line 155, in get_raw_data
  File "canvas.py", line 337, in get_image_data
ValueError: Cannot save jpeg format images

GIFs don't appear to have the same problem as JPG/PNG.

12-26-2019, 07:03 AM	#85
jackie_w Grand Sorcerer Posts: 6,252 Karma: 16544692 Join Date: Sep 2009 Location: UK Device: ClaraHD, Forma, Libra2, Clara2E, LibraCol, PBTouchHD3	Win10 running in debug mode from source with a fully up-to-date 4.99.2 I think I've found a bug in the Editor when editing an image. These steps will reproduce it: Open any epub and open an HTML page containing either a JPG or a PNG, so that the image is visible in the Preview window. Right-click the image name and select 'Open'. Rotate the image (or use the Trim tool). The image disappears from Preview and debug shows this error message: Code: Turning on automatic hidpi scaling devicePixelRatio: 1.0 logicalDpi: 96.0 x 96.0 physicalDpi: 127.66492146596858 x 127.59069767441859 Using calibre Qt style: True calibre css_parser 1.0.4 lxml etree: 4.3.3 Traceback (most recent call last): File "preview.py", line 192, in requestStarted File "preview.py", line 50, in get_data File "image.py", line 155, in get_raw_data File "canvas.py", line 337, in get_image_data ValueError: Cannot save jpeg format images GIFs don't appear to have the same problem as JPG/PNG.