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2020-10-23
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| 12:47 | • Closed ticket [681692ffff]: Map <Button-4/5> to <MouseWheel> on UNIX plus 7 other changes artifact: 75df9a200d user: jan.nijtmans | |
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2019-04-01
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| 15:16 | • Ticket [681692ffff]: 4 changes artifact: eb11cabd3c user: chrstphrchvz | |
| 14:40 | • Ticket [4a8d97d370] Document & support <MouseWheel> event on unix status still Open with 4 other changes artifact: abb8bcf40e user: chrstphrchvz | |
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2018-06-29
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| 18:27 | • Ticket [681692ffff] Map <Button-4/5> to <MouseWheel> on UNIX status still Open with 4 other changes artifact: 7a7855062d user: fvogel | |
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2017-09-08
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| 10:48 | • Ticket [681692ffff]: 3 changes artifact: 800395cfc4 user: fvogel | |
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2017-09-07
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| 19:58 | • Ticket [2b8fa6fd91] ttk::scrollbar is missing MouseWheel bindings status still Open with 3 other changes artifact: f015b1b73e user: fvogel | |
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2017-03-14
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| 15:52 | • Ticket [681692ffff] Map <Button-4/5> to <MouseWheel> on UNIX status still Open with 7 other changes artifact: e4c56893bb user: griffin | |
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2010-01-14
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| 01:51 | • Ticket [681692ffff]: 4 changes artifact: 53963b8c0d user: tom_goddard | |
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2004-12-13
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| 21:17 | • Ticket [681692ffff]: 1 change artifact: d9d7beeff8 user: dkf | |
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2003-03-09
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| 09:05 | • Ticket [681692ffff]: 4 changes artifact: 598d723a11 user: xtifr | |
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2003-02-06
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| 14:55 | • New ticket [681692ffff]. artifact: c3b817cad0 user: tallniel | |
| Ticket UUID: | 681692 | |||
| Title: | Map <Button-4/5> to <MouseWheel> on UNIX | |||
| Type: | RFE | Version: | None | |
| Submitter: | tallniel | Created on: | 2003-02-06 14:55:24 | |
| Subsystem: | 01. Bindings | Assigned To: | jan.nijtmans | |
| Priority: | 5 Medium | Severity: | Minor | |
| Status: | Closed | Last Modified: | 2020-10-23 12:47:15 | |
| Resolution: | Fixed | Closed By: | jan.nijtmans | |
| Closed on: | 2020-10-23 12:47:15 | |||
| Description: |
Currently on UNIX, mousewheel events are mapped to
mouse buttons 4 and 5. On Windows, there is a separate
<MouseWheel> event. I understand that historically,
buttons 4 and 5 are used on UNIX, but in the interests
of hiding platform-specific details, it would useful to
be able to portably register interest in mousewheel
events, without having to work out how those are
conveyed on a particular platform.
To this end, I propose adding a simple mapping to Tks
script library so that button 4/5 events also generate
an appropriate <MouseWheel> event. This can be done
easily in two lines of code:
bind all <Button-4> {event generate %W <MouseWheel>
-delta 1}
bind all <Button-5> {event generate %W <MouseWheel>
-delta -1}
This seems to get things working on my Linux box. I
haven't looked at the delta values on Windows, so they
may need some tweaking (finding a suitable default
value, and working out whether up is negative or positive).
I think this is a small change, but one which does
quite a lot in hiding platform specific details, in a
backwards-compatible way.
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| User Comments: |
jan.nijtmans added on 2020-10-23 12:47:15:
Since TIP #474 is in Tk 8.7 now, this can be closed. Done. chrstphrchvz added on 2019-04-01 15:16:47: I believe [4a8d97d370] is a duplicate of this. Regarding the implementation currently in the tip474-uniform-mouse-wheel branch: does it convert events for buttons 4 and 5 into MouseWheel events on platforms other than X11? I don't think Tk should begin interpreting buttons 4 and 5 as scrolling on Windows/Aqua. fvogel added on 2018-06-29 18:27:47: There is discussion currently about this on Tcl-Core list. fvogel added on 2017-09-08 10:48:03: TIP #474 deals with this. griffin added on 2017-03-14 15:52:29: I agree that it is painful to have different platform dependent mouse wheel definitions. I am concerned that the definition of Windows <MouseWheel> and X11's <Button-4>, etc., are fundamentally different making a translation non-trivial. I have seen inconsistencies in different mouse devices on Windows that don't behave as expected with the simple "%D/120" algorithm. So proceed with caution before just blindly hard-wiring these 2 events together. More research is required. tom_goddard added on 2010-01-14 01:51:55: The MouseWheel binding doing nothing on X11 platforms has caused us headaches in our Windows/Mac/Linux molecular visualization program UCSF Chimera. It is one of too many cases where we have to special-case the Tk code depending on operating system. We'd love to see this fixed. xtifr added on 2003-03-09 09:05:48: Logged In: YES user_id=25775 According to a fellow Debian developer, there's a way to ask X which buttons control ZAxisMapping. (He also informs me that it's not always 4/5; some people use 6/7.) I'll try to get more details, maybe even see if I can whip up a proper patch. | |||