GTK+ Forums

chrikle · Familiar Face Joined: 31 Jan 2009 Posts: 5

I have an array of Data rows:

In general I create model like that:
model = gtk.ListStore(gobject.TYPE_DOUBLE, gobject.TYPE_DOUBLE)
or something like that. But in this case I don't know the number of rows
I have to do something like that:
model = gtk.ListStore(ARRAY_of_TYPES)

How can I do that?

alketi · Familiar Face Joined: 10 Mar 2010 Posts: 22

I'm looking to do this as well. I have an application where I do not know (until runtime) how many columns I will need.

From my early searches it appears a way to do this might be to use: gtk_list_store_newv ()

But, I'm still looking for a simple example on how to build it up with an array.

Cheers

tadeboro · Posted: Wed Mar 10, 2010 5:01 pm Post subject:

@alketi: Hello and welcome to the GTK+ forums.

gtk_tree_store_newv() function is indeed what you'll need to use. I'll just give an example that shows how two exactly the same stores can be created using new() and newv() functions. This will hopefully give you a kick start in development.

Code: (C)

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/* Static creation */
GtkTreeStore *store1 = gtk_tree_store_new( 2, G_TYPE_STRING, G_TYPE_INT );

/* Variable creation */
/* Create dynamic array 2 elements in size */
gsize array_size = sizeog( GType ) * 2;
GType *types = g_slice_alloc( array_size );

/* Assing types */
types[0] = G_TYPE_STRING;
types[1] = G_TYPE_INT;

/* Create store */
GtkTreeStore *store2 = gtk_tree_store_newv( 2, types );

/* Free array */
g_slice_free1( array_size, types );

Tadej

alketi · Familiar Face Joined: 10 Mar 2010 Posts: 22

tadeboro, thank you for your tireless help and support on these forums. Your examples are an amazing help.

I was able to integrate your example and get it working. Though, being new to Gtk I did have to look up whether or not "sizeog" was a new data type. :) But, it was just a small typo of course.

Thanks again!