XRC issue for some PNG graphics.

[Widgets]

In my current project, I am trying to display a wxBitmapButton, using a 16x16 PNG as the base image.
The GUI is built using wxCrafter 2.9 - latest version
I am building under Win 10, 64-bits using MSVC 2029 community edit and wxWidgets 3.1.4
The problem is that the specific button with the given PNG does not display. Other PNGs, built using the same process and GUI builder do display properly in the same app.
The log reports:

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18:08:05: Error: XRC error: XRC resource "Modify_16x16" (class "wxBitmap") not found

I have asked on the wxCrafter forum, but have not had any answers as yet.

As an alternative in tracking this down and to move my project along, because I am convinced it is a wxWidgets issue - wxCrafter is based on wxWidgets and, presumably uses the wxWidgets library for all of the relevant code - I have modified the wxWidgets minimal project and have attached a basic example which shows the same issue.
It reports:

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18:06:08: XRC error: XRC resource "D:/MSVC2019/wxWidgets-3.1.4/samples/minimalPng/modifywxCrafter.xml" (class "wxBitmap") not found
18:06:08: XRC error: XRC resource "modifywxCrafter.xml" (class "wxBitmap") not found

If I use the plain PNG or an XMP version, it loads and display the image without error.
Since this is the first time I had to dig into XRC functionality and hence I am not familiar at all, I have copied the data generated by wxCrafter for the give n PNG and the example shows the same error message when I try to display the image using the same code as used by the wxCrafter generated class

[doublemax]

I usually don't use XRC, so i don't know too much about it, but i know that the .xml file you posted is not an XML resource file.

Check one of the .xrc files in <wxdir>/samples/xrc/rc/ to see how the look like.

What you have is a binary converted to C source file. You include them and create a bitmap from the static data:

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#include "modifywxCrafter.xml"
...

wxBitmap bmp = wxBitmap::NewFromPNGData( xml_res_file_1, xml_res_size_1 );

Maybe wxCrafter has an option to include the static data in the resource file somehow? I don't know, but i think there is a step missing somewhere.

[DavidHart]

Hi,

I have asked on the wxCrafter forum, but have not had any answers as yet.

Are you sure? I noticed this bug-report but I can't see anything on the CodeLite forum.

IIUC you're using wxCrafter for the gui, but MSVC for building. wxCrafter can produce two sorts of output: by default, C++ for use in the CodeLite IDE, but you can also export as XRC. Which are you using? And how does this relate to the bitmapbutton with the problematical PNG? Is it added by wxCrafter, or separately?

Regards,

David

[Widgets]

@Doublemax: wxCrafter does produce both an *.xrc file (which I ignore) and a *,cpp file where I copied the data array from as well as the loader code

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 wxXmlResource::Get()->LoadBitmap( wxT("modifywxCrafter.xml")) );

my apologies for not identifying that.
The XRC file is included in the wxCrafter code, but I can rename that file and there is no reaction from the compiler/linker if I do so. Hence my conclusion that it was not used. As well, if I even comment out the code which seems to include it, the project compiles, links and the rest of the PNG images in similar buttons, still display as expected.

@DavidHart: the bug report you were looking at was the one I was referring to.
Yes, I am using the stand alone version and have been ever since it was first published. And, yes, I generate the GUI with it and then compile with MSVC.
As a test, I have also created the GUI with the latest Codelite wxCrafter plugin, just in case there might be a difference/update, but I got the same results - the one image does not display.
In the mean time, I have tried to display a second image in the test app, which in my app is also included the same way and one which displays without error, but evidently, there is something else I am missing, because this second image produces the same error as the one I was complaining about.

FWIW, all images start as PNGs. Some display OK, at least one fails. And I have not been able to identify what, if any difference there might be between the two.
Back to the drawing board and more tracking down of the real problem.
If I come to any better resolution other than some temporary work around, I will repost here

[Widgets]

My current work-around is to let wxCrafter use wxArtProvider images

[Widgets]

Just posted a new chapter in this story at: https://github.com/eranif/codelite/issues/2830