[Vala] maemo5 hildon input mode
I'm trying to disable Maemo's autocapitalisation in a Gtk.Entry field. Maemo 5 adds a "hildon-input-mode" property to Gtk.Entry [ http://maemo.org/api_refs/5.0/5.0-final/gtk/GtkEntry.html], but I can't find any way to access it from Vala, either from a Gtk.Entry or a Hildon.Entry. martin ___ Vala-list mailing list Vala-list@gnome.org http://mail.gnome.org/mailman/listinfo/vala-list
Re: [Vala] maemo5 hildon input mode
2010/2/8 Jiří Zárevúcky :
> Martin DeMello píše v Po 08. 02. 2010 v 22:26 +0530:
>> I'm trying to disable Maemo's autocapitalisation in a Gtk.Entry field.
>> Maemo 5 adds a "hildon-input-mode" property to Gtk.Entry [
>> http://maemo.org/api_refs/5.0/5.0-final/gtk/GtkEntry.html], but I
>> can't find any way to access it from Vala, either from a Gtk.Entry or
>> a Hildon.Entry.
>
> You can try using this method:
>
> http://www.valadoc.org/gobject-2.0/GLib.Object.get.html
Thanks, that worked beautifully. For anyone googling this up, the exact code is:
var input = new Hildon.Entry (Hildon.SizeType.AUTO);
input.set("hildon-input-mode", Hildon.GtkInputMode.FULL);
// refer to hildon-1.vapi for the full enum
martin
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[Vala] using libgee from c
Other than reading gee.h directly, is there any documentation on the C api to libgee? martin ___ Vala-list mailing list Vala-list@gnome.org http://mail.gnome.org/mailman/listinfo/vala-list
[Vala] sorted keys from a hash
What's the most efficient (in terms of speed) way to iterate over a hash in sorted order of the keys? The keys are strings. martin ___ Vala-list mailing list Vala-list@gnome.org http://mail.gnome.org/mailman/listinfo/vala-list
Re: [Vala] sorted keys from a hash
On Sat, Feb 13, 2010 at 3:39 AM, Jan Hudec wrote:
> On Sat, Feb 13, 2010 at 02:54:21 +0530, Martin DeMello wrote:
>> What's the most efficient (in terms of speed) way to iterate over a
>> hash in sorted order of the keys? The keys are strings.
>
> To use a balanced tree.
>
> Hash can only ever be iterated in the hash order, which is fixed but
> pseudo-random.
Well, here's my exact problem: I have a TreeMap that I add (string,
string) pairs to. The desired output is a sorted list of these pairs.
Now I'm wondering if it'd be more efficient to use a HashMap instead,
since I don't really need to maintain the sorted property as the list
is built up, just have it sorted when I return it. Roughly, I want
for i in map.keys.sort() {
retval.append (i, map[i])
}
return retval
except I've been through the API and I can't find a good way to sort
the keys, or to push the pairs into a list and sort the list.
martin
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Re: [Vala] An elegant way to concatenate integers into a string.
On Tue, Jun 15, 2010 at 6:17 AM, Celil wrote:
> I would like to translate the following python code snippet to vala:
>
> x = [1,2,3]
> print ",".join(map(str, x))
>
> So far I have this:
>
> int[] x = {1,2,3};
> string[] y = {};
> foreach (var e in x) { y += e.to_string(); }
> stdout.printf(string.joinv(",", y));
>
> Is there a better way to do this? Dose vala support something equivalent
> to the python built-in `map` function?
Good question; I went through the Vala docs and couldn't find a nice
way either. Might be worth porting Ruby's Enumberable module to Vala.
martin
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Re: [Vala] Graphic toolkits for Vala?
On Sat, Jul 3, 2010 at 2:32 AM, CaStarCo wrote: > Thanks to all :) , > > now i'm trying to decide if is better to use some web system such as webkit > or to use something like clutter because it's more orientated to graphics > than webkit... > > probably i'll take the webkit option because it will help me to extend the > application to the web later. Could you post an announcement to the list when you have something up? I'd love to keep an eye on this. martin ___ vala-list mailing list vala-list@gnome.org http://mail.gnome.org/mailman/listinfo/vala-list
Re: [Vala] Graphic toolkits for Vala?
On Sat, Jul 3, 2010 at 2:14 AM, Martin Olsson wrote: > Checkout all the ones listed on this page: > http://live.gnome.org/ProjectRidley/CanvasOverview > > Also take a moment a serious consider doing it using > open web standards rendered via a WebKit webview > or similar (inside you can use SVG or HTML Canvas etc). > The benefit of this is that you can probably deliver > your app both as a webapp and a rich client app. > The rich client version will of course have better > desktop integration etc which is nice sometimes but > on the go you can use the web app instead. Is it possible to render an svg image into a webkit canvas and receiving click/drag events on it from vala? Could someone post a quick example if so? The available documentation is rather thin on the ground. martin martin ___ vala-list mailing list vala-list@gnome.org http://mail.gnome.org/mailman/listinfo/vala-list
[Vala] Why no functions returning lists in libgee?
How come libgee doesn't have any functions that return new lists (in particular list.map() and list.filter())? Is it to avoid allocation? I've been looking at porting ruby's Enumerable module to vala, but I thought I'd check first as to why it isn't there already, and if this sort of thing is for some reason a bad idea. martin ___ vala-list mailing list vala-list@gnome.org http://mail.gnome.org/mailman/listinfo/vala-list
Re: [Vala] information on dova
On Wed, Jul 21, 2010 at 7:21 PM, Abderrahim Kitouni wrote: > Hi, > في ر، 21-07-2010 عند 14:51 +0200 ، كتب andi: >> Hi list, >> I was wondering if anyone could give me or point me at some information >> on dova and its aims. I've been googling for quite some time now and >> read a bit of code in the gitorous repo. Of course, I also found the >> page on live.gnome.org. > Its aim is mainly to have vala without the quirks and limitations of > GObject. Vala with dova should be closer to Java and C# than now (but > it'll still be better ;-)) How will that affect the writing of gtk and gnome apps? martin ___ vala-list mailing list vala-list@gnome.org http://mail.gnome.org/mailman/listinfo/vala-list
[Vala] valasemanticanalyzer error
What do I need to do to get the following code to compile? It dies with
$ valac --pkg gee-1.0 test.vala
**
ERROR:valasemanticanalyzer.c:2948:vala_semantic_analyzer_get_actual_type:
assertion failed: (instance_type != NULL)
Aborted
# ---
using Gee;
public interface Enumerable : Iterable {
public delegate T DFunc(G elem);
public void map(DFunc fn, Gee.List acc) {
foreach (G i in this) {
acc.add(fn(i));
}
}
}
public class EnumerableList : Gee.ArrayList, Enumerable {
}
public static int main(string[] args) {
var a = new EnumerableList ();
a.add(1);
a.add(2);
a.add(3);
var b = new Gee.ArrayList ();
a.map( (i) => { return "%d".printf(i); }, b);
foreach (string i in b) {
println(i);
}
return 0;
}
#
martin
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Re: [Vala] valasemanticanalyzer error
Note also that this dies in a different place in 0.92 (last tagged
release before the "generic delegates support" feature):
$ valac --pkg gee-1.0 test.vala
test.vala:23.37-23.37: error: Argument 1: Cannot convert from `G' to `int'
a.map( (i) => { return "%d".printf(i); }, b);
^
Compilation failed: 1 error(s), 0 warning(s)
martin
On Tue, Aug 17, 2010 at 6:09 PM, Martin DeMello wrote:
> What do I need to do to get the following code to compile? It dies with
>
> $ valac --pkg gee-1.0 test.vala
> **
> ERROR:valasemanticanalyzer.c:2948:vala_semantic_analyzer_get_actual_type:
> assertion failed: (instance_type != NULL)
> Aborted
>
>
> # ---
> using Gee;
>
> public interface Enumerable : Iterable {
>
> public delegate T DFunc(G elem);
>
> public void map(DFunc fn, Gee.List acc) {
> foreach (G i in this) {
> acc.add(fn(i));
> }
> }
> }
>
> public class EnumerableList : Gee.ArrayList, Enumerable {
> }
>
> public static int main(string[] args) {
> var a = new EnumerableList ();
> a.add(1);
> a.add(2);
> a.add(3);
> var b = new Gee.ArrayList ();
> a.map( (i) => { return "%d".printf(i); }, b);
> foreach (string i in b) {
> println(i);
> }
>
> return 0;
> }
>
> #
>
>
> martin
>
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Re: [Vala] valasemanticanalyzer error
On Thu, Aug 19, 2010 at 6:39 PM, Jürg Billeter wrote:
> On Tue, 2010-08-17 at 18:09 +0530, Martin DeMello wrote:
>> public interface Enumerable : Iterable {
>>
>> public delegate T DFunc(G elem);
>>
>> public void map(DFunc fn, Gee.List acc) {
>> foreach (G i in this) {
>> acc.add(fn(i));
>> }
>> }
>> }
>
> This is invalid code. Inner types don't have access to generic type
> parameters of outer types. So you probably want something as follows:
>
> public interface Enumerable : Iterable {
>
> public delegate T DFunc(G elem);
> [...]
> }
Okay, I made that change, and now I'm getting the same error that .92 gives:
test.vala:23.37-23.37: error: Argument 1: Cannot convert from `G' to `int'
a.map( (i) => { return "%d".printf(i); }, b);
^
i.e. it cannot infer the type of i even though a is of type
EnumerableList
Also, does "support for generic delegates" mean that I will ultimately
be able to specialise the delegate function when I call it? Something
like this at the least, though anonymous function support would be
nice:
using Gee;
public interface Enumerable : Iterable {
public delegate T DFunc(G elem);
public void map(DFunc fn, Gee.List acc) {
foreach (G i in this) {
acc.add(fn(i)); // <-- error: missing generic type
arguments
}
}
}
public class EnumerableList : Gee.ArrayList, Enumerable {
}
public string f(int i) {
return "%d".printf(i);
}
public static int main(string[] args) {
var a = new EnumerableList ();
a.add(1);
a.add(2);
a.add(3);
var b = new Gee.ArrayList ();
a.map((Enumerable.DFunc) f , b);
foreach (string i in b) {
stdout.printf("-- %s --\n", i);
}
return 0;
}
martin
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Re: [Vala] valasemanticanalyzer error
On Fri, Aug 20, 2010 at 2:55 PM, Abderrahim KITOUNI wrote:
>
> shouldn't it be Iterable?
Thanks, that got the basic proof of concept working. Now the issue is,
I want to write a generic map function whose output type should not
need to be encoded in the Enumerable type.
using Gee;
public interface Enumerable : Iterable {
public delegate O DFunc(I elem);
public void map(DFunc fn, Gee.List acc) {
foreach (G i in this) {
acc.add(fn(i));
}
}
}
public class EnumerableList : Gee.ArrayList, Enumerable {
}
public string f(int i) {
return "%d".printf(i);
}
public static int main(string[] args) {
var a = new EnumerableList ();
a.add(1);
a.add(2);
a.add(3);
var b = new Gee.ArrayList ();
a.map((Enumerable.DFunc) f , b);
foreach (string i in b) {
stdout.printf("-- %s --\n", i);
}
return 0;
}
The strange bit is that the acc.add(fn(i)); line complains
test1.vala:8.7-8.9: error: missing generic type arguments
acc.add(fn(i));
^^^
even though I'd expect acc to be well typed (I've declared it using
var b = new Gee.ArrayList ();
and should be able to use it via Gee.List, no?)
martin
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Re: [Vala] valasemanticanalyzer error
On Fri, Aug 20, 2010 at 5:47 PM, Andrea Del Signore wrote:
>
> the only error I can spot is here:
>>
>> public void map(DFunc fn, Gee.List acc) {
>
> should be:
>
> public void map(DFunc fn, Gee.List acc)
No, it is a list of the target type, not the source type.
> I really don't understand what are you trying to do can you explain to
> me? Thanks.
I'm trying to write a generic map function that consumes a list and
emits a transformed list. If I have two lists
a = List // full
b = List // empty
and a function
target_type fn(source_type)
I should be able to write
a.map(fn, b)
And b[i] should be fn(a[i]) for all i in a's indices.
martin
>
>
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Re: [Vala] valasemanticanalyzer error
On Fri, Aug 20, 2010 at 7:26 PM, Andrea Del Signore wrote:
>
> Thanks for the explanation but I can't really imagine any other way of
> doing this without specializing the map method, because I don't see
> implemented any "standard" (non generic) IList interface in gee.
>
> So:
>
> public void map(DFunc fn, Gee.List acc) { ... }
>
> and then
>
> a.map((Enumerable.DFunc) f , b);
Thanks! I didn't know you could have generic *methods* - is that
documented anywhere? Not as clean as I'd hoped for, but it's
definitely better than not being able to do it at all. Is there any
way I can replace `f` in the above code with an anonymous lambda?
martin
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Re: [Vala] valasemanticanalyzer error
On Fri, Aug 20, 2010 at 8:06 PM, Andrea Del Signore wrote:
>
> If you want to use a lambda this is what I came with (see the map
> function):
>
> public void map(DFunc fn, Gee.List acc) {
> foreach (G i in this) {
> acc.add(fn(i));
> }
> }
Beautiful, thanks :)
martin
> }
>
> public class EnumerableList : Gee.ArrayList, Enumerable {
> }
>
> public string f(int i) {
> return "%d".printf(i);
> }
>
> public static int main(string[] args) {
> var a = new EnumerableList ();
> a.add(1);
> a.add(2);
> a.add(3);
> var b = new Gee.ArrayList ();
> a.map(f , b);
> foreach (string i in b) {
> stdout.printf("-- %s --\n", i);
> }
> b.clear ();
> //using a lambda
> a.map((i) => { return "result: %d".printf (i); } , b);
> foreach (string i in b) {
> stdout.printf("-- %s --\n", i);
> }
>
> return 0;
> }
>
> HTH,
> Andrea
>
>
>
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