Need help with watermark

Software darktable
1

Hi All

Can I as for some help with watermarks please?
My understanding is that the watermarks use the same variables like the ones described here

https://docs.darktable.org/usermanual/4.8/en/special-topics/variables/

I have a few tags. They are in the following pattern

bb|places|europe|italy|rome

My desire is to take either “rome” or “italy”, likely capitalize the first symbol and place on a darker background - same as (or inspired by) the darktable.svg the demo watermark.

In my tag - it is either the last or second to the last but the depth can vary.

I would very much appreciate it if you can give me a hand with the formatting for the tag and if you can point me please where to locate darktable.svg

I will continue looking of course but thought to ask as someone may know it or have a template.

Thank you!
B

2

One down (the .svg)

The tag is still do do :thinking:

3

I think I found the next one

$(CATEGORY[2,bb|places]^)

For me “bb|places” is the one that is the common ground.

I don’t think I can find how to capitalize every word. :disappointed:

5

The manual states, that bash-inspired string substitution for given variables is possible.
In Bash, ^ converts the first letter of a string to uppercase while ^^ converts all characters to uppercase.
So I think in your case a string substitution with

$(var^^)

is the way to go. I didn’t try it out yet though

Edit: I just realized that you’re aming for first letter capitalization on multiple words. So my answer is of course not helpful. I’ll leave it here for future reference though

1 Like
6

If you can edit the SVG file, maybe you can do it with CSS using the property:

text-transform: capitalize;

I have done a test with the darktable.svg and Chrome by adding text-transform: lowercase; property to the text label for the text on the right bottom corner and it worked.

To help you to get the idea, I attached a screenshot as an example. As you can see the text on the bottom corner has been converted to lowercase.

image
image780×467 99.7 KB

Maybe it works also with Darktable, it depends on how it renders the SVG text-transform because I would say it is not a property of SVG but some browsers render it anyway.

— Update
Previous proposal was inspired by the darktable user manual - variables formatting section.

Following the markup link in that section, I saw that it supports the “text_transformation” (notice the underscore instead of dash) with the values ‘none’, ‘lowercase’, ‘uppercase’ or ‘capitalize’.

So, the text label could be something like this:

<text text_transformation="capitalize" ...> ... </text>

It should work.

Regards

1 Like
7

I played around a little bit and came up with the following simple solution for a simple-text watermark:

$(CATEGORY[2,bb|places]^) , $(CATEGORY[1,bb|places]^)

results in

image
image2559×1440 760 KB

Turns out easier as expected. What am I missing?

2 Likes
8

Here’s the same, applied to a modified version of the darktable.svg shipped with dt.

image
image2559×1440 778 KB

9

I am going to check this - Didn’t know that the .SVG can be edited.

Some towns are combination of 2 words.
Like “Saint-Tropez”

I think what a better approach is to have the tags capitalized properly (to start with) and then if needed - convert to all caps or all lowercase using the variables.

I still have to try what @rgo suggests. Even i resolve completely by renaming the tags (what I started actually) there are other entries that the capitalization can come handy.

Thank you all!