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digitalmars.D.learn - arsd-minigui - couple of questions

reply sai <sai dummy.com> writes:
1. I assume arsd-minigui library does not support transparent 
images by itself, does it? I am trying to show a png image with 
transparent areas on a button, but those transparent areas shows 
as black color.


2. I want to show both image and text on a button, but looks like 
it shows image or text, but not both at the same time. Or am I 
missing some weird windows manifest stuff?

I am using latest arsd library on windows 10.

Thanks
Mar 28 2022
next sibling parent sai <sai dummy.com> writes:
On Monday, 28 March 2022 at 17:00:42 UTC, sai wrote:

 1. I assume arsd-minigui library does not support transparent 
 images by itself, does it? I am trying to show a png image with 
 transparent areas on a button, but those transparent areas 
 shows as black color.


 2. I want to show both image and text on a button, but looks 
 like it shows image or text, but not both at the same time. Or 
 am I missing some weird windows manifest stuff?

 I am using latest arsd library on windows 10.

 Thanks


BTW, the code is very simple:

```d
import arsd.minigui;

void main() {
	auto window = new Window();
	auto headBut = new Button(ImageLabel("Button name", 
MemoryImage.fromImage("file.png")), window);
	window.loop();
}
```
Mar 28 2022
prev sibling next sibling parent Adam Ruppe <destructionator gmail.com> writes:
On Monday, 28 March 2022 at 17:00:42 UTC, sai wrote:

 1. I assume arsd-minigui library does not support transparent 
 images by itself, does it? I am trying to show a png image with 
 transparent areas on a button, but those transparent areas 
 shows as black color.


I added that to simpledisplay last year, but never forwarded the 
flag to minigui since it didn't seem important.... should be easy 
enough to add, I'll take a look.


 2. I want to show both image and text on a button, but looks 
 like it shows image or text, but not both at the same time. Or 
 am I missing some weird windows manifest stuff?


Yeah, it is one or the other right now. I don't think the 
standard Windows control supports that without owner draw, which 
is something I've generally tried to avoid (but it isn't that 
hard to do at least in some cases...).
Mar 28 2022
prev sibling parent reply Adam Ruppe <destructionator gmail.com> writes:
On Monday, 28 March 2022 at 17:00:42 UTC, sai wrote:

 1. I assume arsd-minigui library does not support transparent 
 images by itself, does it? I am trying to show a png image with 
 transparent areas on a button, but those transparent areas 
 shows as black color.


Well, I tried forwarding the flag, I can custom draw it this way 
but the standard Windows button's normal draw doesn't appear to 
care...

There might be a trick I just don't know, but the problem is I 
don't know it lol.
Mar 28 2022
parent reply Sai <sai dummy.com> writes:
On Monday, 28 March 2022 at 18:03:32 UTC, Adam Ruppe wrote:

 On Monday, 28 March 2022 at 17:00:42 UTC, sai wrote:

 1. I assume arsd-minigui library does not support transparent 
 images by itself, does it? I am trying to show a png image 
 with transparent areas on a button, but those transparent 
 areas shows as black color.


 Well, I tried forwarding the flag, I can custom draw it this 
 way but the standard Windows button's normal draw doesn't 
 appear to care...

 There might be a trick I just don't know, but the problem is I 
 don't know it lol.



Thanks for the reply and the help.

FWIW, DWT which uses native controls on windows can show 
transparent pngs and also both image & text at the same time. 
However I had to add the following app.exe.manifest file in the 
same folder as the app.exe file. Otherwise it only shows text or 
image but not both. Not sure if this helps, but just want to let 
you know. Honestly I have no idea how this works under the hood.

```
<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" 
manifestVersion="1.0">
   <assemblyIdentity
       version="1.0.0.0"
       processorArchitecture="X86"
       name="-"
       type="win32"
       />
   <description></description>
   <dependency>
     <dependentAssembly>
       <assemblyIdentity
           type="win32"
           name="Microsoft.Windows.Common-Controls"
           version="6.0.0.0"
           processorArchitecture="*"
           publicKeyToken="6595b64144ccf1df"
           language="*"
           />
     </dependentAssembly>
   </dependency>
</assembly>
```
Mar 28 2022
parent reply Adam Ruppe <destructionator gmail.com> writes:
On Monday, 28 March 2022 at 21:10:47 UTC, Sai wrote:

 FWIW, DWT which uses native controls on windows can show 
 transparent pngs and also both image & text at the same time. 
 However I had to add the following app.exe.manifest


Yeah, this tells me they used owner-drawn buttons, which is only 
supported if you use version 6 controls. The version 6 controls 
are nice btw even if you don't use this specific feature, they 
also come with automatic theme support and a few other nice 
things. I actually recommend in the docs that you use this for 
simpledisplay/minigui applications too, just then you also need 
to provide a draw method to do the text+image.

It isn't hard to do, about a dozen lines for this basic case that 
you can just opt into and use the default draw for other cases.

I was thinking about adding one of those anyway (another nice 
thing you can do is change the background color), I just haven't 
gotten around to it yet. Maybe I'll do it tomorrow.

Keep an eye on this thread, if I do, I'll let you know.
Mar 28 2022
parent reply Adam Ruppe <destructionator gmail.com> writes:
oooh it actually is even easier than I thought, just a changed 
flag plus the manifest.

Just pushed to minigui master. only ended up being 4 lines for 
this little thing.

Try rebuilding with that AND be sure to use the manifest file 
too, same as dwt. Then you should be able to find some joy.
Mar 28 2022
parent reply Adam Ruppe <destructionator gmail.com> writes:
In fact, using a pragma now, I think I got it so you don't even 
need the manifest now (the pragma includes a default one now).

Only works when doing dmd -m32mscoff or dmd -m64 builds (which 
are also what dub uses fyi), will NOT work with a default dmd 
no-switch build.
Mar 28 2022
parent reply sai <sai dummy.com> writes:
On Monday, 28 March 2022 at 23:03:01 UTC, Adam Ruppe wrote:

 In fact, using a pragma now, I think I got it so you don't even 
 need the manifest now (the pragma includes a default one now).

 Only works when doing dmd -m32mscoff or dmd -m64 builds (which 
 are also what dub uses fyi), will NOT work with a default dmd 
 no-switch build.


I just cloned the latest arsd lib from github today and compiled 
the example. Got an error. Switched on verbose flag for dub and 
here is the output:

(Lines below until the error is just one giant line, I split them 
here for clarity)

```
C:\dlang\dmd2\windows\bin64\dmd.exe 
-of.dub\build\application-debug-windows-x86_64-dmd_v2.099.0-dirty-9C73C615E47957E2F0196C61BFACFF7A\app.exe

.dub\build\application-debug-windows-x86_64-dmd_v2.099.0-dirty-9C73C615E47957E2F0196C61BFACFF7A\app.obj

C:\dlang\arsd\.dub\build\library-debug-windows-x86_64-dmd_v2.099.0-dirty-5128CD87C77EA53A12BDD90A8B37E0E4\arsd-official_image_files.lib

C:\dlang\arsd\.dub\build\library-debug-windows-x86_64-dmd_v2.099.0-dirty-66D647CCA1055F2F9BD2C4AAD0551124\arsd-official_bmp.lib

C:\dlang\arsd\.dub\build\library-debug-windows-x86_64-dmd_v2.099.0-dirty-8F6807A564A94A3E26A5FDE91B0A798F\arsd-official_imageresize.lib

C:\dlang\arsd\.dub\build\library-debug-windows-x86_64-dmd_v2.099.0-dirty-24F06AB33E1AC529F9B3C0A9DEA4B137\arsd-official_jpeg.lib

C:\dlang\arsd\.dub\build\library-debug-windows-x86_64-dmd_v2.099.0-dirty-ABDB0882B5E2D9CDE956E9E845377256\arsd-official_png.lib

C:\dlang\arsd\.dub\build\library-debug-windows-x86_64-dmd_v2.099.0-dirty-1DE97EFE0E43837E141C233C0AA5C31F\arsd-official_svg.lib

C:\dlang\arsd\.dub\build\library-debug-windows-x86_64-dmd_v2.099.0-dirty-0128B44A475FA39689E2D238F5500D0D\arsd-official_minigui.lib

C:\dlang\arsd\.dub\build\normal-debug-windows-x86_64-dmd_v2.099.0-dirty-CD2FC136BEDCF32714DEA23BE867AC78\arsd-official_simpledisplay.lib

C:\dlang\arsd\.dub\build\library-debug-windows-x86_64-dmd_v2.099.0-dirty-1A0BC8A3D79617FC811AC1F1422195CC\arsd-off
cial_color_base.lib gdi32.lib ole32.lib -m64 -g

lld-link: error: /manifestdependency: is not allowed in .drectve
Error: linker exited with status 1
FAIL 
.dub\build\application-debug-windows-x86_64-dmd_v2.099.0-dirty-9C73C615E4795
E2F0196C61BFACFF7A\ app executable
C:\dlang\dmd2\windows\bin64\dmd.exe failed with exit code 1.
```

I searched for "manifestdependency" and "drectve" (w/o quotes) in 
arsd lib and couldn't find them so not sure how to debug this 
further. I also removed the explicit manifest file from the 
directory of the exe file (its presence didn't make any 
difference anyway, as exe file is not created as link failed).
Mar 29 2022
next sibling parent reply sai <sai dummy.com> writes:
Actually as you mentioned, I did find the changes in minigui.d 
file. I will try tweaking the  pragma there see if anything works.
Mar 29 2022
parent reply sai <sai dummy.com> writes:
Interestingly I get the same error if I change the pragma test to 
"BLAH"


 lld-link: error: BLAH is not allowed in .drectve




I suspect something is going wrong when passing the linker 
options from pragma to the linker itself.

However, if I uncomment the pragma and explicitly place the 
manifest file it works (as you mentioned before). I will use it 
this way for now. But fixing the pragma will be awesome if we can 
get rid of the manifest file.
Mar 29 2022
parent reply sai <sai dummy.com> writes:
Found this: https://bugs.llvm.org/show_bug.cgi?id=38797

Seems like a linker bug? So we have to wait for the fix to show 
up in dmd package.
Mar 29 2022
parent reply Adam D Ruppe <destructionator gmail.com> writes:
On Tuesday, 29 March 2022 at 14:24:13 UTC, sai wrote:

 Seems like a linker bug? So we have to wait for the fix to show 
 up in dmd package.


I just tried copying the lld-link from llvm version 14 upstream 
into the dmd directory and it does fix the problem, so will try 
to get the dmd release manager to do that for the future. Then I 
can enable this convenient thing again when that updates based on 
a dmd version check.
Mar 29 2022
parent reply sai <sai dummy.com> writes:
Thanks Adam for all the help :)
Mar 29 2022
parent reply sai <sai dummy.com> writes:
One more request, is it possible for you to do to ImageBox what 
you did to Button to show the transparent images (png)? Because 
Imagebox is showing black color for transparent pixels.

I tried to see the git history to see if I can make that change 
to Imagebox and submit a pull request, but I am lost and don't 
think I understand the code well enough.
Apr 11 2022
parent reply Adam D Ruppe <destructionator gmail.com> writes:
On Monday, 11 April 2022 at 12:40:29 UTC, sai wrote:

 One more request, is it possible for you to do to ImageBox what 
 you did to Button to show the transparent images (png)? Because 
 Imagebox is showing black color for transparent pixels.


oh yeah this one is different because the imagebox custom draws 
it, so it is really as simple as passing `true` to the opacity 
there too when it converts.

Try this diff:

https://github.com/adamdruppe/arsd/commit/912047ccdda7e7775f64431a631519e6024d2494

i think it fixes it, let me know.
Apr 11 2022
parent sai <sai dummy.com> writes:
On Monday, 11 April 2022 at 13:14:16 UTC, Adam D Ruppe wrote:

 On Monday, 11 April 2022 at 12:40:29 UTC, sai wrote:

 One more request, is it possible for you to do to ImageBox 
 what you did to Button to show the transparent images (png)? 
 Because Imagebox is showing black color for transparent pixels.


 oh yeah this one is different because the imagebox custom draws 
 it, so it is really as simple as passing `true` to the opacity 
 there too when it converts.

 Try this diff:

 https://github.com/adamdruppe/arsd/commit/912047ccdda7e7775f64431a631519e6024d2494

 i think it fixes it, let me know.


Done, it works. Awesome thanks.
Apr 11 2022
prev sibling parent Adam D Ruppe <destructionator gmail.com> writes:
On Tuesday, 29 March 2022 at 13:39:25 UTC, sai wrote:

 I searched for "manifestdependency" and "drectve" (w/o quotes) 
 in arsd lib and couldn't find them so not sure how to debug 
 this further.


Ah sorry, you caught me in the middle of something. Yes, I 
remember seeing this before, lld-link is buggy and doesn't 
support this :( I tried this before and it failed, but this time 
I tested again after seeing it in the Windows API docs on my 
laptop computer... which has the Microsoft linker installed, 
which does support it. So it worked for me and I committed 
without checking the other linker.

This is annoying. You can edit the source to comment that I guess 
and just use the .manifest file instead. Ugh.
Mar 29 2022