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List:       ruby-talk
Subject:    Re: QLineEdit
From:       Manfred Hansen <manfred () toppoint ! de>
Date:       2002-02-24 12:42:26
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Hello,

the connect is wrong, here is the right one.
QRObject::connect_rslot(@textIn,QSIGNAL("textChanged(const QString 
&)"),@verarbeiter,'neuerTextSlot(const QString &)')

another little mistake is def neuerTextSlot()
the correct one is ef neuerTextSlot(ps)

Manfred

Manfred Hansen wrote:

> Hi,
> 
> i try to print out the text from QLineEdit
> 
> #!/usr/local/bin/ruby
> 
> require "qt2"
> include Qt2
> 
> class Fenster < QVBox
> 
> def  initialize
> @verarbeiter = Verarbeiter.new(self,"SLOT")
> @textIn = QLineEdit.new(self,"TextIn","SIGNAL")
> quit = QPushButton.new("Quit",self,"quit")
> 
connect(quit,QSIGNAL("clicked()"),QApplication::qApp,QSLOT("quit()"))
> connect (@textIn,QSIGNAL("textChanged(const QString
> &)"),@verarbeiter,QSLOT("@neuerTextSlot(const QString&)"))
> end
> 
> end
> 
> class Verarbeiter < QWidget
> 
> def neuerTextSlot()
> #def neuerTextSlot(const QString ps)
> print ps
> end
> end
> 
> 
> a = QApplication.new( [$0]+ARGV)
> b = Fenster.new                # Das Objekt der Klasse QWidget wird
> erzeugt a.setMainWidget( b )
> b.show()
> a.exec()
> 
> 
> 
> Here is my error message
> 
> hansen@hansen-lx:~/ruby$ ./qlineedit1.rb
> QObject::connect: No such slot QWidget::@neuerTextSlot(const QString&)
> QObject::connect:  (sender name:   'SIGNAL')
> QObject::connect:  (receiver name: 'SLOT')
> 
> 
> I belive i must define a slot in the class Verarbeiter, but i have no
> idea how to do this.
> 
> The following example have i tried to translate from c++ to ruby
> 
http://velociraptor.mni.fh-giessen.de/Programmierung/progII-html-dir/node10.html#SECTION000103600000000000000

> 
> 
> Manfred


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