Thread overview
DlangUI print too small on retina screens
Apr 12
Joel
Apr 13
evilrat
Apr 13
Joel
Apr 14
evilrat
Apr 14
Joel
April 12
I got a new computer (another MacBook Pro, but this one has retina display), now I don't think I can use my main programs (done in DlangUI), without eye strain and having my head close to the screen.

I noticed a lot of forked versions of the said library. Do any have a fix for the tiny print, if so, which one is good?

Thanks in advance.
April 13
On Friday, 12 April 2019 at 08:39:52 UTC, Joel wrote:
> I got a new computer (another MacBook Pro, but this one has retina display), now I don't think I can use my main programs (done in DlangUI), without eye strain and having my head close to the screen.
>
> I noticed a lot of forked versions of the said library. Do any have a fix for the tiny print, if so, which one is good?
>
> Thanks in advance.

It should detect DPI for you, and internally do the scaling. Though I don't know if it works at all.

In case it is not yet implemented try this function[1](overrideScreenDPI from dlangui.core.types) before creating your widgets in UI main function, at the very last resort you can just change the values in that file as well and rebuild (that's what I did for my crappy projects and it was working on Windows).

[1]https://github.com/buggins/dlangui/blob/d942853bcd458f563ee3c855332ab58c1f1e5faa/src/dlangui/core/types.d#L317
April 13
On Saturday, 13 April 2019 at 02:35:59 UTC, evilrat wrote:
> On Friday, 12 April 2019 at 08:39:52 UTC, Joel wrote:
>> [...]
>
> It should detect DPI for you, and internally do the scaling. Though I don't know if it works at all.
>
> In case it is not yet implemented try this function[1](overrideScreenDPI from dlangui.core.types) before creating your widgets in UI main function, at the very last resort you can just change the values in that file as well and rebuild (that's what I did for my crappy projects and it was working on Windows).
>
> [1]https://github.com/buggins/dlangui/blob/d942853bcd458f563ee3c855332ab58c1f1e5faa/src/dlangui/core/types.d#L317

Thanks for the reply, but I looked it up, and couldn't work out what I can do. I want to try using the overrideScreenDPI trick.
April 14
On Saturday, 13 April 2019 at 12:00:30 UTC, Joel wrote:
>
> Thanks for the reply, but I looked it up, and couldn't work out what I can do. I want to try using the overrideScreenDPI trick.

option 1 - using override DPI function:
-------------------

    // your average hello world UIAppMain()

    import dlangui;

    mixin APP_ENTRY_POINT;

    const SCALE_FACTOR = 2.0f;

    /// entry point for dlangui based application
    extern (C) int UIAppMain(string[] args) {

        // just in case, but dlangui package seems to import pretty much everything
        import dlangui.core.types;

        // pretty much self explanatory, where 96 DPI is "normal" 100% zoom
        // alternatively you can set it to your screen real DPI or PPI or whatever it is called now
        // however for 4k with 144 DPI IIRC I set it to 1.25 scale because 1.5 was too big and/or didn't match WPF/native elements
        overrideScreenDPI = 96f * SCALE_FACTOR;

        // now create your widgets and run main loop
        ...

    }


option 2 - temporal override in cached package code (dub only)
-------------------

    once you build your app go to dub temporary package cache,
    on windows it is %USERPROFILE%\AppData\Local\dub\packages
    on linux it is something like ~/dub/packages

    go to corresponding dlangui version folder and edit the file
    dlangui-###\dlangui\src\dlangui\core\types.d
    find PRIVATE_SCREEN_DPI and set it to something bigger that closer match your DPI or 96 multiplied by relative scaling
    save & rebuild your project


option 3 - clone and edit (dub or manual builds if you know what to do)
-------------------

    clone dlangui repo somewhere
    do steps from option 2 for PRIVATE_SCREEN_DPI
    (dub only) in your dub project change dlangui dependency to point to where you cloned it
    "dependencies": {
        "dlangui":  { "version" : "*", "path": "your_modifief_dlangui_somewhere" }
    },

    rebuild, done
April 14
On Sunday, 14 April 2019 at 02:12:28 UTC, evilrat wrote:
> On Saturday, 13 April 2019 at 12:00:30 UTC, Joel wrote:
>> [...]
>
> option 1 - using override DPI function:
> -------------------
>
> [...]

Thanks, option 1 pretty much worked - though overrideScreenDPI didn't compile with float type (int type worked though).