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STR #2892
| Application: | FLTK Library |
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| Status: | 5 - New |
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| Priority: | 2 - Low, e.g. a documentation error or undocumented side-effect |
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| Scope: | 3 - Applies to all machines and operating systems |
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| Subsystem: | Core Library |
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| Summary: | Fl_Text_Display::position_to_line(): Consistency check ptvl failed |
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| Version: | 1.3-current |
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| Created By: | corvid |
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| Assigned To: | Unassigned |
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| Fix Version: | Unassigned |
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| Update Notification: | |
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Trouble Report Files:
[ Post File ]
Trouble Report Comments:
[ Post Text ]
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| #1 | corvid
17:17 Nov 24, 2012 |
| As erco wrote on fltk.general:
> Getting these errors on the terminal for every character I type:
>
> Fl_Text_Display::position_to_line(): Consistency check ptvl failed
> Fl_Text_Display::position_to_line(): Consistency check ptvl failed
> Fl_Text_Display::position_to_line(): Consistency check ptvl failed
> Fl_Text_Display::position_to_line(): Consistency check ptvl failed
>
> Also, even though the screen appears to be large enough, it
> doesn't show the line being typed, but seems scrolled down
> to an empty line beyond the end of the buffer.
...which pretty much covers it.
It seems like the Fl_Text_Display needs to have room for two lines and use WRAP_AT_BOUNDS wrap mode.
I'm amazed that I haven't tripped over this before with textareas in dillo, but maybe two lines tall is uncommon enough...
Code to reproduce attached. | |
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| #2 | corvid
17:30 Nov 24, 2012 |
| Oh, also at one point I tried "#define DEBUG 1" in Fl_Text_Display.cxx, and then I was getting "*** display_insert/position_to_xy # GIVE UP !\n" from line 985 without changing wrap mode from the default, so it may be that wrap mode is not strictly necessary for position_to_line() unhappiness. | |
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