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b100dian
Joined: 07 Apr 2009
Posts: 5
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 Posted: Wed 08 Apr 2009, 07:01 Post subject:
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| Quote: | So Vala/Genie are really on a good way, if they find interest even under such "critical" conditions
Thanks very much for your work, Mark |
Well I am only another Vala user, but thanks for the thanks:)
However, I have one question regarding Vala/Genie, Puppy Linux and Gtkaml: I am in the process of re-writing the parsing to better integrate with Vala's parser and symbol resolver, and to expand Gtkaml's features.
Q: How do you feel about the libxml2 dependency (given the Puppy Linux constraints) and would a GLib/GMarkup approach be favored?
Thanks, and sorry for the offtopic.
Vlad
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MUguest
Joined: 09 Dec 2006
Posts: 73
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| Posted: Wed 08 Apr 2009, 07:08 Post subject:
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Hi Vlad,
I think libxml2 is in Puppy since ages, and will stay in it, as many programs depend on it. So it is ok, if you stay with it.
Mark
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Mr. Maxwell
Joined: 30 Aug 2008
Posts: 215
Location: Nebraska, USA
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| Posted: Fri 10 Apr 2009, 10:11 Post subject:
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I've got everything working except my GUI.  All I need is a button and a text entry field, the problem is I have no idea how to 1) pack the widgets so the text entry field is on top of the button 2) how to make, display text, and delete text in a text entry field.
Thanks in advance.
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MU
Joined: 24 Aug 2005
Posts: 13642
Location: Karlsruhe, Germany
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| Posted: Fri 10 Apr 2009, 10:43 Post subject:
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I attach an example.
It uses project.glade, that can be modified with Glade.
If you do not want to use libglade, I would need your program, so that I could add the code you miss to it.
Note, that you must compile it with libglade and gobject.
If you don't use the ValaIDE, compile it with:
valac -C --pkg gtk+-2.0 --pkg libglade-2.0 --pkg gmodule-2.0 main.gs
If you use the valaide, add those libraries in the options.
On my current system, the ide crashes, if I go to the options, so I added them with an editor to buttonandtext.vide.
Mark
| Description |
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| Description |
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MU
Joined: 24 Aug 2005
Posts: 13642
Location: Karlsruhe, Germany
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| Posted: Fri 10 Apr 2009, 11:19 Post subject:
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Here is the same result, but now without libglade, coded "by hand" with the native Gtk bindings.
| Code: | [indent=2]
//-- declare global variables --
entry : Gtk.Entry
//-- define the methods --
def on_button_clicked ()
entry.set_text("text changed!")
//-- main program --
init
Gtk.init (ref args)
//-- build the window --
var window = new Gtk.Window (Gtk.WindowType.TOPLEVEL)
window.set_default_size (300, 10)
window.destroy += Gtk.main_quit
var vbox = new Gtk.VBox(false , 1)
vbox.border_width = 10
vbox.spacing = 10
window.add (vbox)
//-- the entry is global, so that it can be modified later --
entry = new Gtk.Entry ()
entry.set_editable(false)
entry.set_text("hello")
vbox.pack_start (entry, false, true, 0);
var button = new Gtk.Button.with_label("ok")
vbox.pack_start (button, false, true, 0);
//-- define actions --
button.clicked += on_button_clicked;
//-- show the window, hand over to the Gtk mainloop --
window.show_all ()
Gtk.main ()
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Mark
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b100dian
Joined: 07 Apr 2009
Posts: 5
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| Posted: Fri 10 Apr 2009, 11:56 Post subject:
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| Quote: | | Here is the same result, but now without libglade, coded "by hand" with the native Gtk bindings. |
(Shameless plug, I know... )
Here is the same code "by hand" with gtkaml (Mark, you once said you 'haven't tested the library')
| Code: | <Window xmlns="Gtk" xmlns:g="http://gtkaml.org/0.2"
g:name="ButtonAndText" destroy="{Gtk.main_quit}" type="{WindowType.TOPLEVEL}">
<VBox homogeneous="false" spacing="10" border-width="10">
<Entry g:public="entry" editable="false" text="hello" expand="false" />
<Button label="ok" expand="false" clicked='entry.text="text changed!"'/>
</VBox>
<![CDATA[
static int main (string [] args)
{
Gtk.init (ref args);
var window = new ButtonAndText();
window.set_default_size (300, 10);
window.show_all ();
Gtk.main ();
}
]]>
</Window> |
Compiles with:
gtkamlc --pkg gtk+-2.0 buttonandtext.gtkaml
(Unfortunately gtkaml only supports vala atm, not genie)
Vlad
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MU
Joined: 24 Aug 2005
Posts: 13642
Location: Karlsruhe, Germany
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| Posted: Fri 10 Apr 2009, 12:07 Post subject:
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Great, thanks for the nice example, Vlad!
It contains a slight error, the return type must be void, or I get this error:
| Quote: | # gtkamlc --pkg gtk+-2.0 buttonandtext.gtkaml
buttonandtext.vala:11.3-11.17: error: missing return statement at end of method body
Segmentation fault |
Here is the same code with void instead of int:
| Code: | <Window xmlns="Gtk" xmlns:g="http://gtkaml.org/0.2"
g:name="ButtonAndText" destroy="{Gtk.main_quit}" type="{WindowType.TOPLEVEL}">
<VBox homogeneous="false" spacing="10" border-width="10">
<Entry g:public="entry" editable="false" text="hello" expand="false" />
<Button label="ok" expand="false" clicked='entry.text="text changed!"'/>
</VBox>
<![CDATA[
static void main (string [] args)
{
Gtk.init (ref args);
var window = new ButtonAndText();
window.set_default_size (300, 10);
window.show_all ();
Gtk.main ();
}
]]>
</Window>
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Mark
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Mr. Maxwell
Joined: 30 Aug 2008
Posts: 215
Location: Nebraska, USA
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| Posted: Fri 10 Apr 2009, 21:27 Post subject:
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I got my first complete Genie program done! It's a shakespeareain insulter! 
Source:
| Code: | [indent=4]
uses
GLib
//-- declare global variables --
entry : Gtk.Entry
//-- define the methods --
def on_button_clicked ()
cola:array of string = {"artless", "bawdy", "beslubbering", "bootless", "churlish", "cockered", "clouted", "craven", "currish", "dankish", "dissembling", "droning", "errant", "fawning", "fobbing", "froward", "frothy", "gleeking", "goatish", "gorbellied", "impertinent", "infectious", "jarring", "loggerheaded", "lumpish", "mammering", "mangled", "mewling", "paunchy", "pribbling", "puking", "puny", "qualling", "rank", "reeky", "roguish", "ruttish", "saucy", "spleeny", "spongy", "surly", "tottering", "unmuzzled", "vain", "venomed", "villainous", "warped", "wayward", "weedy", "yeasty"}
colb:array of string = {"base-court", "bat-fowling", "beef-witted", "beetle-headed", "boil-brained", "clapper-clawed", "clay-brained", "common-kissing", "crook-pated", "dismal-dreaming", "dizzy-eyed", "doghearted", "dread-bolted", "earth-vexing", "elf-skinned", "fat-kidneyed", "fen-sucked", "flap-mouthed", "fly-bitten", "folly-fallen", "fool-born", "full-gorged", "guts-griping", "half-faced", "hasty-witted", "hedge-born", "hell-hated", "idle-headed", "ill-breeding", "ill-nurtured", "knotty-pated", "milk-livered", "motley-minded", "onion-eyed", "plume-plucked", "pottle-deep", "pox-marked", "reeling-ripe", "rough-hewn", "rude-growing", "rump-fed", "shard-borne", "sheep-biting", "spur-galled", "swag-bellied", "tardy-gaited", "tickle-brained", "toad-spotted", "unchin-snouted", "weather-bitten"}
colc:array of string = {"apple-john", "baggage", "barnacle", "bladder", "boar-pig", "bugbear", "bum-bailey", "canker-blossom", "clack-dish", "clotpole", "coxcomb", "codpiece", "death-token", "dewberry", "flap-dragon", "flax-wench", "flirt-gill", "foot-licker", "fustilarian", "giglet", "gudgeon", "haggard", "harpy", "hedge-pig", "horn-beast", "hugger-mugger", "joithead", "lewdster", "lout", "maggot-pie", "malt-worm", "mammet", "measle", "minnow", "miscreant", "moldwarp", "mumble-news", "nut-hook", "pigeon-egg", "pignut", "puttock", "pumpion", "ratsbane", "scut", "skainsmate", "strumpet", "varlot", "vassal", "whey-face", "wagtail"}
insult:string = "Thou "
insult = insult.concat(cola[GLib.Random.int_range(0, 49)], " ", colb[GLib.Random.int_range(0, 49)], " ", colc[GLib.Random.int_range(0, 49)], "!")
entry.set_text(insult)
//-- main program --
init
Gtk.init (ref args)
//-- build the window --
var window = new Gtk.Window (Gtk.WindowType.TOPLEVEL)
window.set_default_size (400, 10)
window.destroy += Gtk.main_quit
var vbox = new Gtk.VBox(false , 1)
vbox.border_width = 10
vbox.spacing = 10
window.add (vbox)
//-- the entry is global, so that it can be modified later --
entry = new Gtk.Entry ()
entry.set_editable(false)
entry.set_text("")
vbox.pack_start (entry, false, true, 0);
var button = new Gtk.Button.with_label("Insult me again!")
vbox.pack_start (button, false, true, 0);
//-- define actions --
button.clicked += on_button_clicked;
on_button_clicked()
//-- show the window, hand over to the Gtk mainloop --
window.show_all ()
Gtk.main ()
|
The source and binary are attached.[/code]
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shakespeareain_insulter.tar.gz |
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MU
Joined: 24 Aug 2005
Posts: 13642
Location: Karlsruhe, Germany
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| Posted: Fri 10 Apr 2009, 21:34 Post subject:
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well done
Mark
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Lobster
Official Crustacean
Joined: 04 May 2005
Posts: 15109
Location: Paradox Realm
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| Posted: Fri 10 Apr 2009, 22:49 Post subject:
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Looks simple - good 
I have called that insulter is.gs
(why would anyone want to insult Shakespeare?) - ahem 
This is what I get - have had similar problems with other gtk programs.
Am I missing a library (using Puppy 4.2.smp)?
Should I use Puppy 4.12 for Genie?
| Code: | # valac si.gs
si.gs:7.9-7.11: error: The symbol `Gtk' could not be found
entry : Gtk.Entry
^^^
Compilation failed: 1 error(s), 0 warning(s)
# |
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Mr. Maxwell
Joined: 30 Aug 2008
Posts: 215
Location: Nebraska, USA
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| Posted: Fri 10 Apr 2009, 22:55 Post subject:
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You have to call the compiler with the GTK package flag. | Code: | | valac --pkg gtk+-2.0 is.gs |
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Lobster
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Joined: 04 May 2005
Posts: 15109
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| Posted: Sun 12 Apr 2009, 13:31 Post subject:
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Thanks Mr. Maxwell
Now able to compile for gtk
We are now trying to combine the earlier random monkey generator
with your code as a basis
so far we can input text - say 'in'
but need another output window?
some way of putting the generated random letters in a second window . . .
Anyway the code we have so far:
| Code: | [indent=4]
//outputting random generated text from input and outputting result
uses
GLib
//-- declare global variables --
entry : Gtk.Entry
//-- define the methods --
def getRandomNumber(RangeFrom:int, RangeTo:int) : int /* function to create random number between range */
return GLib.Random.int_range(RangeFrom,RangeTo)
def getRandomChar() : char /* function to generate ascii codes from a-z and space (32) */
num:int = getRandomNumber(0,27)
if num == 0
num = 32
else
num = num + 96
return (char) num
def addRandomChar(myText:string) : string /* function add text from command line */
var retText = new StringBuilder
retText.append(myText)
retText.append_c(getRandomChar())
return retText.str
def IsEmpty(theText:string) : bool
if theText == null
return true
if theText == ""
return true
return false
def on_button_clicked ()
theText:string = entry.get_text()
if IsEmpty(theText)
entry.set_text("Please enter some text")
return
entry.set_text("running")
theText = theText.down()
myText:string = ""
timer : Timer = new Timer()
timer.start()
do
do
myText = addRandomChar(myText)
while theText.len() != myText.len()
if theText != myText
myText = ""
while theText != myText
entry.set_text(myText)
//-- main program --
init
Gtk.init (ref args)
//-- build the window --
var window = new Gtk.Window (Gtk.WindowType.TOPLEVEL)
window.set_default_size (400, 50)
window.destroy += Gtk.main_quit
var vbox = new Gtk.VBox(false , 1)
vbox.border_width = 10
vbox.spacing = 10
window.add (vbox)
//-- the entry is global, so that it can be modified later --
entry = new Gtk.Entry ()
entry.set_editable(true)
entry.set_text("")
vbox.pack_start (entry, false, true, 0);
var button = new Gtk.Button.with_label("Insult me again!")
vbox.pack_start (button, false, true, 0);
//-- define actions --
button.clicked += on_button_clicked;
on_button_clicked()
//-- show the window, hand over to the Gtk mainloop --
window.show_all ()
Gtk.main () |
Any help or tips?
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MU
Joined: 24 Aug 2005
Posts: 13642
Location: Karlsruhe, Germany
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| Posted: Sun 12 Apr 2009, 14:43 Post subject:
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I attach an example, Lobster.
I have one problem:
I would like to display the random words in the label in the second window.
But it does not get updated, until the whole function has finished.
It might be doable with threads, but I found no example yet, how to use threads in Genie.
Mark
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MU
Joined: 24 Aug 2005
Posts: 13642
Location: Karlsruhe, Germany
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| Posted: Sun 12 Apr 2009, 16:10 Post subject:
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ah fine, threads can be used.
but together with gtk it is complicated.
such code works:
| Code: | def mythread2() : int
for var i = 1 to 100
print ("%s" , "+++")
Thread.usleep(100)
return 0
def mythread3() : int
for var i = 1 to 100
print ("%s" , "------------")
Thread.usleep(100)
return 0
def static on_button_clicked ()
//mythread()
Thread.create( (ThreadFunc)mythread3, false);
Thread.create( (ThreadFunc)mythread2, false);
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must be used in a full program, and compiled with:
valac --thread --pkg gtk+-2.0 main.gs
This will print stuff like:
| Quote: | +++
------------
+++
+++
------------
+++
------------ |
So both methods run parallel.
Mark
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Lobster
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Joined: 04 May 2005
Posts: 15109
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| Posted: Sun 12 Apr 2009, 16:23 Post subject:
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Thanks Mark - hopefully will look at it tomorrow with Shadow
Threads in particular are interesting - and the first example is using a library you are using in NewyearPup? - does not seem to be in 4.2 . . .
Really appreciate the help.
In fact I might suggest Shadow uses your Genie + Java ISO that might be ideal for him . . .
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