PragTob’s gists

PragTob / shoes4_bouncing_ball.rb

Created August 17, 2013 17:45

I just quickly wrote a bouncing ball implementation in shoes4 as seen in the ruby-processing talk

	Shoes.app title: 'bouncing ball' do
	strokewidth 5
	circle = oval 40, 40, 100
	SPEED = 10
	xspeed = SPEED
	yspeed = SPEED
	animate 30 do
	xspeed *= -1 if circle.right >= width \|\| circle.left <= 0
	yspeed *= -1 if circle.top <= 0 \|\| circle.bottom >= height
	circle.move circle.left + xspeed, circle.top + yspeed

PragTob / JrubyShoesStacktrace

Created August 23, 2013 14:36

A stack trace from JRuby and Shoes with a refactoring of mine that doesn't seem to quite work ;-)

	null:-1:in `error': java.lang.IllegalArgumentException: Argument not valid
	from null:-1:in `error'
	from null:-1:in `error'
	from null:-1:in `setWidth'
	from NativeMethodAccessorImpl.java:-2:in `invoke0'
	from NativeMethodAccessorImpl.java:57:in `invoke'
	from DelegatingMethodAccessorImpl.java:43:in `invoke'
	from Method.java:616:in `invoke'
	from JavaMethod.java:455:in `invokeDirectWithExceptionHandling'
	from JavaMethod.java:316:in `invokeDirect'

PragTob / ErrorInstalling1.7.5.dev

Created September 9, 2013 19:48

Error installing jruby-1.7.5.dev

	[2013-09-09 21:15:05] __rvm_ant
	__rvm_ant ()
	{
	\ant "$@" \|\| return $?
	}
	current path: /home/tobi/.rvm/src/jruby-head
	command(2): __rvm_ant cext
	Buildfile: /home/tobi/.rvm/src/jruby-head/build.xml

	init:

PragTob / have_problem

Created September 26, 2013 23:06

weird have problem

	++ 1380236645.608855020 /etc/profile : 4 > id -u
	+ 1380236645.613815895 /etc/profile : 4 > '[' 1000 -eq 0 ']'
	+ 1380236645.616452607 /etc/profile : 7 > PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games
	+ 1380236645.619365365 /etc/profile : 9 > export PATH
	+ 1380236645.622064925 /etc/profile : 11 > '[' '' ']'
	+ 1380236645.624657223 /etc/profile : 30 > '[' -d /etc/profile.d ']'
	+ 1380236645.627298993 /etc/profile : 31 > for i in '/etc/profile.d/*.sh'
	+ 1380236645.630077532 /etc/profile : 32 > '[' -r /etc/profile.d/bash_completion.sh ']'
	+ 1380236645.633020828 /etc/profile : 33 > . /etc/profile.d/bash_completion.sh
	++ 1380236645.635637206 /etc/profile.d/bash_completion.sh : 2 > '[' -z '4.2.45(1)-release' -o -z '' -o -n '' ']'

PragTob / second_try

Created September 27, 2013 05:42

export PS4="+ \$(__rvm_date \"+%s.%N\") \${BASH_SOURCE} : \${FUNCNAME[0]:+\${FUNCNAME[0]}()} \${LINENO} > " ; bash -x -i -c "echo ok" 2>&1 | tee big.log

	+ 1380260392.292606080 /etc/bash.bashrc : 7 > '[' -z '\s-\v\$ ' ']'
	+ 1380260392.295774802 /etc/bash.bashrc : 11 > shopt -s checkwinsize
	+ 1380260392.299199280 /etc/bash.bashrc : 14 > '[' -z '' ']'
	+ 1380260392.302300697 /etc/bash.bashrc : 14 > '[' -r /etc/debian_chroot ']'
	+ 1380260392.305450380 /etc/bash.bashrc : 19 > PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
	+ 1380260392.308644944 /etc/bash.bashrc : 41 > '[' -x /usr/lib/command-not-found -o -x /usr/share/command-not-found/command-not-found ']'
	+ 1380260392.311726562 /home/tobi/.bashrc : 1 > for file in '/etc/bash_completion.d/*'
	+ 1380260392.314402696 /home/tobi/.bashrc : 2 > source /etc/bash_completion.d/apt-file
	++ 1380260392.317740256 /etc/bash_completion.d/apt-file : 1 > have apt-file
	++ 1380260392.321349641 /etc/bash.bashrc : command_not_found_handle() 44 > '[' -x /usr/lib/command-not-found ']'

PragTob / gist:6735012

Created September 27, 2013 20:55

bundle install error

	tobi@speedy:~/github/shoes4$ bundle
	Fetching gem metadata from https://rubygems.org/.........
	Fetching gem metadata from https://rubygems.org/..
	Resolving dependencies...
	Unfortunately, a fatal error has occurred. Please see the Bundler
	troubleshooting documentation at http://bit.ly/bundler-issues. Thanks!
	TSort::Cyclic: topological sort failed: [#<Bundler::LazySpecification:0x49c095d1 @dependencies=[<Gem::Dependency type=:runtime name="rubyzip" requirements="< 1.0.0">, <Gem::Dependency type=:runtime name="shoes" requirements=">= 0">, <Gem::Dependency type=:runtime name="plist" requirements=">= 0">, <Gem::Dependency type=:runtime name="warbler" requirements=">= 0">], @name="furoshiki", @specification=nil, @platform="ruby", @source=#<Bundler::Source::Rubygems:0x4a323832 @fetchers={}, @installed_specs=#<Bundler::Index:0x135078 sources=[] specs.size=64>, @options={}, @caches=[#<Pathname:/home/tobi/github/shoes4/vendor/cache>, "/home/tobi/.rvm/gems/jruby-1.7.4@shoes/cache", "/home/tobi/.rvm/gems/jruby-1.7.4@globa

PragTob / gist:6735062

Created September 27, 2013 20:58

bundle env output

	tobi@speedy:~/github/shoes4$ bundle env
	Bundler 1.3.5
	Ruby 1.9.3 (2013-05-16 patchlevel 392) [java]
	Rubygems 1.8.24
	rvm 1.22.9 (master)
	GEM_HOME /home/tobi/.rvm/gems/jruby-1.7.4@shoes
	GEM_PATH /home/tobi/.rvm/gems/jruby-1.7.4@shoes:/home/tobi/.rvm/gems/jruby-1.7.4@global
	rubygems-bundler (1.3.3,1.1.1)

PragTob / breaks.rb

Created November 14, 2013 17:20

When a module (B) is included into another module (M) before that module is included into another class (A), everything works fine and the methods of the second module (B) are accessible. However if it is included after the original module (M) was included in the class (A), the method is not known.

	module M
	end

	module B
	def a
	puts 'wuhuuu'
	end
	end

	class A

PragTob / module_inclusion.rb

Last active December 28, 2015 08:39

Module inclusion not really dynamic in Ruby

	module M ; end

	module M2 ; end

	class C
	include M
	end

	M.send :include, M2

PragTob / shoes4-tb-crash

Created February 7, 2014 12:35

Shoes4 TB crash

	tobi@big-one:~/github/shoes4$ bin/ruby-shoes testing/flow_append.rb
	Fontconfig warning: "/etc/fonts/conf.d/53-monospace-lcd-filter.conf", line 10: Having multiple values in <test> isn't supported and may not work as expected
	AfterDo::CallbackError: A callback block for method eval_block on the instance Shoes::Swt::Button with the following arguments: #<Proc:0x313b63e6@/home/tobi/github/shoes4/testing/flow_append.rb:3> defined in the file /home/tobi/github/shoes4/lib/shoes/swt/redrawing_aspect.rb in line 60 resulted in the following error: Java::JavaLang::IllegalArgumentException: Argument not valid and this backtrace:
	org.eclipse.swt.SWT.error(Unknown Source)
	org.eclipse.swt.SWT.error(Unknown Source)
	org.eclipse.swt.SWT.error(Unknown Source)
	org.eclipse.swt.graphics.TextLayout.setWidth(Unknown Source)
	sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccesso

Tobias Pfeiffer PragTob