This also an alternative with a reset button and select widget to choose
the font from a drop down list.
It uses the new range operator in TW 5.1.18pre. You name the tiddler
whatever you want and if need to have it on the sidebar tag with
$:/tags/PageControls as JD explained above.
Cheers
Mohammad
\define set-lineheight()
<$list
filter="[range[18,24]addsuffix[px]after{$:/themes/tiddlywiki/vanilla/metrics/bodyfontsize!!text}]"
variable="font-size">
<$action-setfield
$tiddler="$:/themes/tiddlywiki/vanilla/metrics/bodylineheight" text="26px"/>
</$list>
<$list
filter="[range[10,18]addsuffix[px]after{$:/themes/tiddlywiki/vanilla/metrics/bodyfontsize!!text}]"
variable="font-size">
<$action-setfield
$tiddler="$:/themes/tiddlywiki/vanilla/metrics/bodylineheight" text="22px"/>
</$list>
\end
''Font size:''
<$select tiddler='$:/themes/tiddlywiki/vanilla/metrics/bodyfontsize'
defualt="15px"
actions=<<set-lineheight>> >
<$list filter="[range[10,24]addsuffix[px]]" variable="font-size">
<option value=<<font-size>>><<font-size>></option>
</$list>
</$select>
<$button>Reset
<$action-setfield
$tiddler="$:/themes/tiddlywiki/vanilla/metrics/bodyfontsize" text="15px"/>
<$action-setfield
$tiddler="$:/themes/tiddlywiki/vanilla/metrics/bodylineheight" text="22px"/>
</$button>
On Sunday, September 30, 2018 at 9:52:16 PM UTC+3:30, Tahoka Freeway wrote:
>
>
>
> Thank you Tony and Mohammad for the ideas.
>
> JD, your solution works very well for my application and allows me to
> adjust font size as needed during the presentation without having to switch
> back to Control Panel.
>
>>
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