Re: Problem reading font data.

[Panicz Maciej Godek <godek.maciek@gmail.com>]

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śr., 26 paź 2022, 22:36 użytkownik Arvydas Silanskas <
nma.arvydas.silanskas@gmail.com> napisał:

> Good day,
>
> I assume you lose the implicit classpath reference to working dir when you
> launch with java. Does it work if you add it back explicitly, ie
>
> java -cp /path/to/kawa.jar:. kawa.repl -f font-test.scm
>

Yes, this helped.
Thanks a lot!


> Not sure what are the plans for distribution, but perhaps you might want
> to load it from a file system instead of classpath.
>

Currently I have two ways of running my program: either by directly running
the .scm file, or by building a .jar file. The latter is preferable,
because it takes much less time. And the bundle also includes fonts.

I'm also building an Android client, which virtually needs to use fonts
from the bundle, because accessing the filesystem is problematic there.

Thanks again!


> Arvydas
>
>
> 2022-10-26, tr, 23:23 Panicz Maciej Godek via Kawa <kawa@sourceware.org>
> rašė:
>
>> I have the following code (it doesn't require graphics environment to
>> run):
>>
>> (define-alias Font java.awt.Font)
>> (define-alias InputStream java.io.InputStream)
>> (define ClassLoader ::java.lang.ClassLoader
>>  (java.lang.ClassLoader:getSystemClassLoader))
>>
>> (define the-graphics-environment
>>  ::parameter[java.awt.GraphicsEnvironment]
>>   (make-parameter
>>    (invoke-static
>>     java.awt.GraphicsEnvironment
>>     'getLocalGraphicsEnvironment)))
>>                                   (define (load-font path::String #!key
>> (size ::float 12.0))
>>   (let* ((font-source ::InputStream
>>     (ClassLoader:getResourceAsStream path))
>>            (font ::Font (Font:createFont
>>                        Font:TRUETYPE_FONT
>>                        font-source)))                             (invoke
>> (the-graphics-environment)
>> 'registerFont
>> font)
>>     (font:deriveFont size)))
>>
>> (define-constant Basic-Regular
>>   (load-font "assets/Basic-Regular.otf" size: 20)
>>
>> The Basic-Regular.orf file is present in the assets directory, located in
>> the same directory as the above file (that I called font-test.scm.
>>
>> When I run the code with
>>
>> $ kawa -f font-test.scm
>>
>> it behaves well. But when I instead use
>>
>> $ java -jar /path/to/kawa.jar -f font-test.scm
>>
>> or
>>
>> $ java -cp /path/to/kawa.jar kawa.repl -f font-test.scm
>>
>> I get the following error:
>>
>> java.io.IOException: Problem reading font data.                       at
>> java.desktop/java.awt.Font.createFont0(Font.java:1208)
>>                                              at
>> java.desktop/java.awt.Font.createFont(Font.java:1076)
>>                                               at
>> atInteractiveLevel$Mn8.loadFont$check(font-test.scm:21)
>>                                               at
>> gnu.mapping.CallContext.runUntilValue(CallContext.java:656)
>>                                               at
>> atInteractiveLevel$Mn9.run(font-test.scm:27)               at
>> gnu.expr.ModuleExp.evalModule2(ModuleExp.java:290)         at
>> kawa.Shell.run(Shell.java:300)                             at
>> kawa.Shell.runFile(Shell.java:562)                         at
>> kawa.Shell.runFileOrClass(Shell.java:485)                  at
>> kawa.repl.processArgs(repl.java:298)                       at
>> kawa.repl.main(repl.java:830)
>>
>> I even went so far to modify the `which kawa` script by inserting "set -x"
>> in the first line following the she-bang:
>>
>> + KAWALIB=/data/data/com.termux/files/home/usr/share/kawa/lib/kawa.jar
>>                                                 +
>>
>> CLASSPATH=/data/data/com.termux/files/home/usr/share/kawa/lib/kawa.jar:/data/data/com.termux/files/usr/share/java/android.jar:
>>                                                         + export CLASSPATH
>>                                           + test -n
>> /data/data/com.termux/files/usr/opt/openjdk         +
>> JAVA=/data/data/com.termux/files/usr/opt/openjdk/bin/java   + JVM_FLAGS=
>>                                               + exec
>> /data/data/com.termux/files/usr/opt/openjdk/bin/java
>> -Dkawa.command.line=/data/data/com.termux/files/home/usr/bin/kawa -f
>> font-test.scm -Dkawa.command.pid=20316
>> -Dkawa.home=/data/data/com.termux/files/home/usr/share/kawa kawa.repl -f
>> font-test.scm
>>
>>
>> So - in orded to minimize the differences, I typed the following
>> incantation:
>>
>> $ KAWALIB=/data/data/com.termux/files/home/usr/share/kawa/lib/kawa.jar
>> CLASSPATH=/data/data/com.termux/files/home/usr/share/kawa/lib/kawa.jar
>> /data/data/com.termux/files/usr/opt/openjdk/bin/java
>> -Dkawa.command.line="/data/data/com.termux/files/home/usr/bin/kawa -f
>> font-test.scm"
>> -Dkawa.home=/data/data/com.termux/files/home/usr/share/kawa
>> kawa.repl -f font-test.scm
>>
>> But that still doesn't work.
>> Does anyone know what could be the difference between these two runtime
>> environments?
>>
>> (I checked, and they both report the same value of (current-path))
>>
>