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Author Topic: ATScrollBar  (Read 7089 times)

Alextp

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Re: ATScrollBar
« Reply #15 on: March 04, 2017, 04:32:32 pm »
Sorry, i make scrollbar like Win32 scrollbar, it has page size and pos cannt be > width - pagesize.

josh

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Re: ATScrollBar
« Reply #16 on: March 13, 2017, 03:30:43 pm »
Hi, I can use the control like a progress type control where the position is a direct link to other elements of app; to do this I set the pagesize to 1.
However the big problem is the size of the 'thumb' control, it becomes too small to use.
If you put an atscroll on form set to vertical and set the max to say 600, look at the size of the thumb control, if this thumb control could have a minimum size height to say 70% of control width; it would look visually better than just a 3/4 pixel height bar. ( or maybe extra property Thumb Minimum Height)
Only a suggestion.
Development Installation Lazarus 1.3, FPC 2.7.1,Windows 7/8 32/64, OSX, *nix

Test Environment Lazarus & FPC Trunk on Windows and OSX (Cocoa Mainly on OSX). Testing also Crosscompile windows to OSX.. 
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josh

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Re: ATScrollBar
« Reply #17 on: May 20, 2018, 12:58:29 pm »
HI

Been playing with the ATSCroll.

I notice an odity, if I set min to 0, max to 200, position to 100, pagesize to 1, the control is not in the center of the bar, also I can not scroll down to the maximum size.

Test project attached.
Development Installation Lazarus 1.3, FPC 2.7.1,Windows 7/8 32/64, OSX, *nix

Test Environment Lazarus & FPC Trunk on Windows and OSX (Cocoa Mainly on OSX). Testing also Crosscompile windows to OSX.. 
Any posts made from 2015 will be based on Lazarus Trunk.

Alextp

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Re: ATScrollBar
« Reply #18 on: May 20, 2018, 09:02:56 pm »
Josh,
1) Middle position is at slider top edge. Slider top edge is in the window middle.
« Last Edit: May 20, 2018, 10:01:23 pm by Alextp »

Alextp

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Re: ATScrollBar
« Reply #19 on: May 20, 2018, 10:00:54 pm »
2b) To fix demo, set Max to 200+PageSize, so scroll goes until 200.
Usually scroll goes until Max-PageSize.

josh

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Re: ATScrollBar
« Reply #20 on: May 21, 2018, 01:46:14 am »
Hi

I can live with settings to max+1, however when you bring the scrollbar down, from 192-200 the scroll bar is at same location. From 0 to 192, you can scroll down by 1 pixel and the position value changes; until you get to the bottom @ 192.
Development Installation Lazarus 1.3, FPC 2.7.1,Windows 7/8 32/64, OSX, *nix

Test Environment Lazarus & FPC Trunk on Windows and OSX (Cocoa Mainly on OSX). Testing also Crosscompile windows to OSX.. 
Any posts made from 2015 will be based on Lazarus Trunk.

Alextp

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Re: ATScrollBar
« Reply #21 on: May 21, 2018, 10:05:07 am »
Fixed;
1) Position/ Min/ Max/ PageSize - now published
2) added 2 props which you can change to make smaller THUMB (it was limited by 10 pixels before):
MinSizeToShowThumb
MinSizeOfThumb (change it)

 

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