v6.32 PageUp/Down Display Error

Sabardeyn · 01-07-2010, 10:33 PM

Just wanted to let you know that v6.32 seems to have a display error when using the PageDown / PageUp buttons. If the book listing portion of the screen shows 10 books per "page", and you hit either button, the display moves 11+ lines up or down.

Showing books 1-10, press pagedown, and book 12-22 will be shown. You cannot see book #11 unless you use the arrow keys.

This was on a new install of v6.32; no old calibre data existed on this computer.

kovidgoyal · 01-07-2010, 11:09 PM

This is on what OS?

Sabardeyn · 01-10-2010, 02:08 AM

Windows XP SP2. Updated to SP3 and it seems to still occur, but on the 2nd or third page, not the first.

This same type of behavior seems to happen whenever calibre is in add/search/tag mode (sorry, but not sure what you call the equivalent functionality).

Basically, during these situations, the row height is increased by a couple of pixels and this might be confusing the screen draw. It thinks it's got 11 lines displayed, but only 10 lines and 8 pixels of the 11th line is shown (just able to see the extenders on tall letters - like L and T, etc). But on a PageUp/Down, it jumps as if the 11th line is shown completely.

Hope this has been sufficiently clear.

kovidgoyal · 01-10-2010, 02:10 AM

Ah well, basically a Qt bug as far as I can tell. Not much I can do about it.

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01-07-2010, 10:33 PM	#1
Sabardeyn Guru Posts: 644 Karma: 1242364 Join Date: May 2009 Location: The Right Coast Device: PC (Calibre), Nexus 7 2013 (Moon+ Pro), HTC HD2/Leo (Freda)	v6.32 PageUp/Down Display Error Just wanted to let you know that v6.32 seems to have a display error when using the PageDown / PageUp buttons. If the book listing portion of the screen shows 10 books per "page", and you hit either button, the display moves 11+ lines up or down. Showing books 1-10, press pagedown, and book 12-22 will be shown. You cannot see book #11 unless you use the arrow keys. This was on a new install of v6.32; no old calibre data existed on this computer.

01-07-2010, 11:09 PM	#2
kovidgoyal creator of calibre Posts: 45,609 Karma: 28549044 Join Date: Oct 2006 Location: Mumbai, India Device: Various	This is on what OS?

01-10-2010, 02:08 AM	#3
Sabardeyn Guru Posts: 644 Karma: 1242364 Join Date: May 2009 Location: The Right Coast Device: PC (Calibre), Nexus 7 2013 (Moon+ Pro), HTC HD2/Leo (Freda)	Windows XP SP2. Updated to SP3 and it seems to still occur, but on the 2nd or third page, not the first. This same type of behavior seems to happen whenever calibre is in add/search/tag mode (sorry, but not sure what you call the equivalent functionality). Basically, during these situations, the row height is increased by a couple of pixels and this might be confusing the screen draw. It thinks it's got 11 lines displayed, but only 10 lines and 8 pixels of the 11th line is shown (just able to see the extenders on tall letters - like L and T, etc). But on a PageUp/Down, it jumps as if the 11th line is shown completely. Hope this has been sufficiently clear.

01-10-2010, 02:10 AM	#4
kovidgoyal creator of calibre Posts: 45,609 Karma: 28549044 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Ah well, basically a Qt bug as far as I can tell. Not much I can do about it.