STR #2692: right justify option for scroll window

STR #2692

Application:	FLTK Library
Status:	5 - New
Priority:	1 - Request for Enhancement, e.g. asking for a feature
Scope:	3 - Applies to all machines and operating systems
Subsystem:	Core Library
Summary:	right justify option for scroll window
Version:	1.4-feature
Created By:	TeXJunky
Assigned To:	Unassigned
Fix Version:	Unassigned
Update Notification:	Receive EMails Don't Receive EMails

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#1	TeXJunky 11:14 Oct 04, 2011

main.cpp
3k

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#1	TeXJunky 10:01 Aug 01, 2011

i have a scroll window that displays a horizontally packed group. the user appends widgets to the group at runtime. it would really be nice if there was an option for right justifying the group in the scroll window. this would make the last added widget automatically visible.

#2	matt 13:48 Sep 28, 2011

For this to work, Fl_Pack::draw() needs to be separated into a layout() function that recalculates all chidden, and a draw() function that only draws. You could then add your widget, call layout, and adjust the scroll group according to the Fl_Pack width.

#3	TeXJunky 13:57 Sep 28, 2011

thanks very much. i will need to stretch my knowledge of fltk to implement this, but i will give it a go. i'll let you know!

#4	matt 14:11 Sep 28, 2011

I'll get to it eventually if you feel that this is too difficult. The function is quite a worm.

#5	matt 09:36 Oct 01, 2011

TeXJunky: this fix will require some changes in the inner core that I am not comfortable to do for 1.3.1 or 1.3.2. I am upping this to 1.4 for now. We will need to discuss this change after 1.3.2 .

#6	TeXJunky 11:22 Oct 04, 2011

thanks for taking a look at this. i posted a file that gives a minimal framework for testing the feature. actually, i have achieved almost what i need using scroll_to and w() functions. it appears that the w() functions get updated sometime later, so my effort is a bit klutzy.