Re: [Vala] using liststore objects

[Joss 4 <gpnet abraerp it>]

Yu Feng wrote:
> On Fri, 2009-05-29 at 09:49 +0200, Joss 4 wrote:
>   
> > Hi Yu,
> >
> >     
> I believe you forgot to cc the message to me. :)
>   
> > Thanks again,
> > With your post I began to understand something abou the name convention 
> > and style settings.  Now I try to do some test.
> > In order to set GTK properties do you think it always be this way for 
> > ever?  I was asking why one can't set properties directly like code  :
> > widget.backcolor = clRed;
> > widget.Font = new Font( "Arial", 8, style.regular);
> >
> > It is so simply and natural. Is there some unknown thing  under X11 or 
> > whatever else we don't know ? . 
> >     
> Those style-properties aren't properties. Properties are associated with
> object instances, whereas style-properties, when they are invented, are
> targeting at classes of widgets. The GTK model is different from our
> intuition here. That's why they are so awkward to use. I've never found
> any easier way of using them.
>
>
>   
> > I remember when I learned about objects 
> > and properties ....  
> > and so what is the definition of GTK+ ?.
> >     
> For regular properties, you can definitely do so. For example,
>
> Gtk.Label label = new Gtk.Label("hola");
> label.text = "hello";
>
>
>   
> > Scuse me , I am a little critic , but I spent 12 days to fight whit GTK  
> > to make a little form with 2 TreeView-Listview and some buttons. 
> >     
> TreeView is the most difficult widget in GTK. Given the fact you are not
> yet familiar with the GLib stuff at all, I would say you were choosing
> the steepest cliff. Did you read the GTK tutorial? I would recommend you
> translate several examples with Vala to make sure you are familiar
> enough with the language and the toolkit first.
>
> http://library.gnome.org/devel/gtk-tutorial/2.17/
>
>   
> > With 
> > this time with sharpdevelop on windows I realized a whole report 
> > designer with property editor and browser field.
> >     
>
> There is one powerful tool. It is called Glade-3. Then you gonna take a
> grab of GtkBuilder and the XML(GMarkup). 
>
>   
> > That said, I like vala  because  I think it is a good bridge from 
> > windows to linux  without any runtime level  between. I agree with your 
> > sentence : "you might have to settle with this situation" ,  in order to 
> > vala, but I understend people  at scribus that decided to convert  all 
> > from GTK+ to QT.
> >     
> Freedom is not free... It costs one hour oh five.
>
> If you are prototyping for a company, I would sincerely suggest you
> should also take a look at Mono(Sharp on Linux); it is also promising.
> MonoDevlop is mono's IDE; not productive yet as I learned from the net.
> but I do think they already have auto-completion: it is a must for a
> product toward the professionals.
>
>   
> > Okay , I still have to solve :
> >
> > - ListStore Header column resize
> >     
> Refer to http://markmail.org/message/xdemlbkhpls6v5u2
>
> it is written in Gtkmm though.
>
>   
> > - ListStore grid visible , thikness and color.
> > - ListStore invisible columns
> > - ListStore  background image or background color
> > - Widget border width and color
> >     
> The trilogy of GtkTreeView GtkTreeModel and GtkTreeStore definitely has
> confused you. Refer to 
> http://en.wikipedia.org/wiki/Model-view-controller
> and
> http://blog.riff.org/2006_10_15_grokking_phpgtk_gtktreeview_and_friends
>
> gtk-app-list will have the people that can answer you these questions
> about TreeView. To me, TreeView is VERY frustrating to work with in
> either C or VALA, because of the very complicated nature of visualizing
> a multi-column tree.
>
> Looks like you are trying to make a highly decorated GTK app. Most of
> the GTK apps I use have no background image, nor customized background
> color, nor customized widget border width or color.
>
>
>   
> > ... and last but not least  Code completion and list of available 
> > packages in valide.
> >     
> Sorry but I am a vim. There is plenty of valide users here though.
>
>   
> > Can you suggest some specific code snippet of people that already did 
> > it. 
> >
> >     
> I did write some simple tree view half a year ago but I did never go
> into that deep. I don't know if any other people used TreeView with
> VALA. Nautilus, Evolution, RhythmBox, Epiphany all have fancy treeviews.
> They are all very well written in C; it shouldn't be difficult to
> convert any of their code into vala.
>
> Good luck!
>
> Yu
>   
> > Thansk  a lot.
> >
> >
> >   
> >  
> >
> > _______________________________________________
> > Vala-list mailing list
> > Vala-list gnome org
> > http://mail.gnome.org/mailman/listinfo/vala-list
> >     
>
>   
I completely agree with you about your sentense " The GTK model is 
different from our intuition here. That's why they are so awkward to 
use. I've never found any easier way of using them."
In order to style-properties; " when they are invented, are targeting at 
classes of widgets" I can not judge the work of these people, but in my 
case it seems that the learning curve is too low , so, something is not 
at the right place.

Now , if things are this way , either you can change them or you must 
accept.

In order to the  "regular properties" definition I think that doesn't 
exit. All the properties of an instanced object are regular by definition.

I work for my own with 4 colleagues, but in this case I am working for 
free. I would like to help a linux group to convert some shell script to 
vala. Currently I work with sharpdevelop on an E.R.P project. We knows 
Monodevelop , but we work only on Windows.Form namespace not "gtk.forms."

the link you gave me  http://markmail.org/message/xdemlbkhpls6v5u2  is a 
question not an answer.

At the end I want to thank for the links you post me and the patience 
and time you took to answer me. Unfortunately even with your help still 
I am at the beginning.

Sorry for my english.
>