Languages/Ruby/Ruby-Qt/KDE Book/First Steps/Hello World: Difference between revisions
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| Line 20: | Line 20: | ||
a = Qt::Application.new ARGV | a = Qt::Application.new ARGV | ||
w = Qt::PushButton.new( " | w = Qt::PushButton.new( "Hello Ruby" ) | ||
Qt::Object.connect( w, SIGNAL( :clicked ), a, SLOT( :quit ) ) | |||
w.show | |||
a.exec | |||
</code> | |||
<code ruby> | |||
require 'Qt4' | |||
class CustomApplication < Qt::Application | |||
slots :doSomething | |||
def doSomething | |||
puts "Do something else" | puts "Do something else" | ||
Qt::Application.instance.quit | Qt::Application.instance.quit | ||
end | end | ||
end | end | ||
a = CustomApplication.new ARGV | |||
w = Qt::PushButton.new( "Hello Ruby" ) | |||
Qt::Object.connect( w, SIGNAL( :clicked ), a, SLOT( :doSomething ) ) | |||
w.show | w.show | ||
a.exec | a.exec | ||
| Line 34: | Line 52: | ||
a = Qt::Application.new ARGV | a = Qt::Application.new ARGV | ||
w = Qt::PushButton.new( " | w = Qt::PushButton.new( "Hello Ruby" ) | ||
w.connect( SIGNAL :clicked ) do | w.connect( SIGNAL :clicked ) do | ||
puts "Do something else" | puts "Do something else" | ||
| Line 46: | Line 64: | ||
require 'Qt4' | require 'Qt4' | ||
a = Qt::Application.new ARGV | |||
w = Qt::PushButton.new( "Hello Ruby" ) do | |||
connect( SIGNAL :clicked ) do | |||
puts "Do something else" | puts "Do something else" | ||
Qt::Application.instance.quit | Qt::Application.instance.quit | ||
end | end | ||
end | end | ||
w.show | w.show | ||
a.exec | a.exec | ||
</code> | </code> | ||
Revision as of 23:02, 19 January 2010
| Tutorial Series | Ruby |
| Previous | Installation on Linux, Installation on Mac OS or Installation on Windows |
| What's Next | n/a |
| Further Reading | n/a |
0% completed (estimate)
After all you should have a working ruby installation with KDE 4 bindings.
So lets try the a very minimalistic KDE 4 application to get a first impression.
Interactive Hello Ruby
Implementation Using Qt 4
require 'Qt4'
a = Qt::Application.new ARGV
w = Qt::PushButton.new( "Hello Ruby" )
Qt::Object.connect( w, SIGNAL( :clicked ), a, SLOT( :quit ) )
w.show
a.exec
require 'Qt4'
class CustomApplication < Qt::Application
slots :doSomething
def doSomething
puts "Do something else"
Qt::Application.instance.quit
end
end
a = CustomApplication.new ARGV
w = Qt::PushButton.new( "Hello Ruby" )
Qt::Object.connect( w, SIGNAL( :clicked ), a, SLOT( :doSomething ) )
w.show
a.exec
require 'Qt4'
a = Qt::Application.new ARGV
w = Qt::PushButton.new( "Hello Ruby" )
w.connect( SIGNAL :clicked ) do
puts "Do something else"
Qt::Application.instance.quit
end
w.show
a.exec
require 'Qt4'
a = Qt::Application.new ARGV
w = Qt::PushButton.new( "Hello Ruby" ) do
connect( SIGNAL :clicked ) do
puts "Do something else"
Qt::Application.instance.quit
end
end
w.show
a.exec