Puppy Linux Discussion Forum Forum Index Puppy Linux Discussion Forum
Puppy HOME page : puppylinux.com
"THE" alternative forum : puppylinux.info
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

The time now is Tue 18 Jun 2013, 20:52
All times are UTC - 4

 Forum index » Off-Topic Area » Programming
Vala and Genie programming
Post_new_topic   Reply_to_topic View_previous_topic :: View_next_topic
Page 32 of 35 Posts_count   Goto page: Previous 1, 2, 3, ..., 30, 31, 32, 33, 34, 35 Next
Author Message
technosaurus


Joined: 18 May 2008
Posts: 3845
PostPosted: Thu 18 Feb 2010, 20:42    Post_subject:  
apart from the 2-3 examples in the devx - there are none as far as I know - maybe something from another distro... did you have to make any patches to compile without glade? I don't recall seeing a --disable-glade or --without-glade option.
_________________
Puppy Web Desktop Now with pet packages - Pet Packaging 100 & 101
Back to top
View user's profile Send_private_message 
disciple

Joined: 20 May 2006
Posts: 6197
Location: Auckland, New Zealand
PostPosted: Fri 19 Feb 2010, 01:05    Post_subject:  
I was lazy, so I hand edited the makefile.
I deleted everything to do with glade, except the line that said something along the lines of HAS_LIBGLADE="yes", which I changed to "no"... I don't know whether I needed to do both those things Smile

One of the comments in the changelog implies that it will still build if you don't have Glade installed, so I imagine it would be fairly easy to add a --disable-glade.
_________________
DEATH TO SPREADSHEETS
- - -
Classic Puppy quotes
- - -
Beware the demented serfers!
Back to top
View user's profile Send_private_message 
ljfr

Joined: 23 Apr 2009
Posts: 176
PostPosted: Wed 07 Apr 2010, 05:05    Post_subject: New version  
Hi,
A new version released last week:
March 31, 2010: Vala 0.8.0 released
see:http://live.gnome.org/Vala
regards,
Back to top
View user's profile Send_private_message 
technosaurus


Joined: 18 May 2008
Posts: 3845
PostPosted: Thu 08 Apr 2010, 15:14    Post_subject:  
pasang-emas board game was recently rewritten in vala
_________________
Puppy Web Desktop Now with pet packages - Pet Packaging 100 & 101
Back to top
View user's profile Send_private_message 
technosaurus


Joined: 18 May 2008
Posts: 3845
PostPosted: Sat 05 Jun 2010, 16:12    Post_subject:  
TrayIcon template - hacked from Nic's Status Icon Test (still has the same references)
Code:
[indent=4]
 
/* Build with valac --pkg gtk+-2.0 yourfile.gs */
 
uses
    Gtk
 
init
    Gtk.init (ref args)
    var test = new StatusIconTest ()
    test.show_all ()
    Gtk.main ()
 
class StatusIconTest : Widget
 
    trayicon : StatusIcon
    menu : Menu
 
    init
        /* Create tray icon */
        trayicon = new StatusIcon.from_stock(STOCK_HOME)
        trayicon.set_tooltip_text ("Hello, i'm a tooltip !")
        trayicon.set_visible(true)
        trayicon.activate += icon_clicked
        create_menu()
 
        /* Create menu */
    def private create_menu ()
        menu = new Menu()
        var menuItem = new ImageMenuItem.from_stock(STOCK_ABOUT, null)
        menuItem.activate += about_clicked
        menu.append(menuItem)
        var menuItem2 = new ImageMenuItem.from_stock(STOCK_QUIT, null)
        menuItem2.activate += exit_app
        menu.append(menuItem2)
        menu.show_all()
        trayicon.popup_menu += def (button, time)
            show_popup(button, time)
 
        /* Show popup menu */
    def private show_popup (button : uint, time : uint)
        menu.popup(null, null, null, button, time)
 
    def private icon_clicked ()
        print("I know you have clicked on the icon !!")
 
def private about_clicked ()
        var about = new AboutDialog ()
        about.set_version("1.0")
        about.set_program_name("Simple StatusIcon Test")
        about.set_comments("This is a Simple StatusIcon Test")
        about.set_copyright("Nicolas alias nikobordx")
        about.run()
        about.hide()
 
    def private exit_app ()
        Gtk.main_quit();


Compile with:
valac -C --pkg gtk+-2.0 genietray.gs
gcc -Os `pkg-config --cflags --libs gtk+-2.0` -o genietray genietray.c -s
_________________
Puppy Web Desktop Now with pet packages - Pet Packaging 100 & 101
Back to top
View user's profile Send_private_message 
technosaurus


Joined: 18 May 2008
Posts: 3845
PostPosted: Mon 07 Jun 2010, 02:03    Post_subject: Multi-call binaries in Vala
Sub_title: have multiple programs in one binary (a la busybox)		  
Multi-call binaries in Vala (like in busybox)

Here is a very basic example using the symlink method:
(just make a symlink called hello and another called goodbye)
Code:
class Demo.HelloWorld : GLib.Object
{
   public static int main(string[] args)
   {
      if ("hello" in args[0]){stdout.printf("Hello World!\n");}
      if ("goodbye" in args[0]){stdout.printf("Good-Bye World!\n");}
      return 0;
    }
}


Notes:
to get the alternate behavior such as in busybox <command> use args[1] instead ... for a larger number of commands a "case" would be better than a bunch of "if"s

The number of libraries available to vala is growing - with something like this it becomes possible to create an entire desktop in a single binary, thus saving significant code size.
_________________
Puppy Web Desktop Now with pet packages - Pet Packaging 100 & 101
Back to top
View user's profile Send_private_message 
technosaurus


Joined: 18 May 2008
Posts: 3845
PostPosted: Tue 08 Jun 2010, 01:27    Post_subject:  
Vala-0.9.1 was released today - it breaks compatibility with most of the plugin examples I have seen including Valide, so I un-patched that part.

http://git.gnome.org/browse/vala/commit/?id=5fd7b8cebb983fccdebcd9329671d94c1e5cf826

I built Valide-0.7.0 against that and it works great so far - unfortunately I had to also add gdl and upgrade gtk>2.18, glib>2.22, and gtksourceview(I just went ahead and compiled the latest... still no genie support though) ... gtk and glib upgrades are available from the ibiblio repo

gdl_DEV-2.30.0-i486.pet
Description 
pet

 Download 
Filename  gdl_DEV-2.30.0-i486.pet 
Filesize  9.03 KB 
Downloaded  516 Time(s) 
gtksourceview-2.11.1-i486.pet
Description 
pet

 Download 
Filename  gtksourceview-2.11.1-i486.pet 
Filesize  257 KB 
Downloaded  473 Time(s) 
gdl-2.30.0-i486.pet
Description 
pet

 Download 
Filename  gdl-2.30.0-i486.pet 
Filesize  64.76 KB 
Downloaded  505 Time(s) 
vala-0.9.1-i486.pet
Description  Note: This is not the official 0.9.1 because I removed plugin code that generates a compile error.
Use the link above to fix your plugin code prior to the 1.0 release.
 pet

 Download 
Filename  vala-0.9.1-i486.pet 
Filesize  1.52 MB 
Downloaded  569 Time(s) 
valide-0.7.0-i486.pet
Description 
pet

 Download 
Filename  valide-0.7.0-i486.pet 
Filesize  740.42 KB 
Downloaded  551 Time(s) 

_________________
Puppy Web Desktop Now with pet packages - Pet Packaging 100 & 101
Back to top
View user's profile Send_private_message 
growler


Joined: 24 Mar 2008
Posts: 209
Location: Kapiti - New Zealand
PostPosted: Sat 28 Aug 2010, 03:43    Post_subject: Genie and Sqlite  
Having a go with my first forays into Genie programming.... appreciated all the examples in this thread.

I am trying to understand how to use the sqlite bindings and as an exercise I tried to convert an example in Vala to get the code below:

Code:
[indent=4]
uses Sqlite
 
class SqliteSample : Object
 
    def callback (n_columns: int, values : array of string, column_names : array of string ) : int
        for i:int = 0 to n_columns
            print ("%s = %s\n", column_names[i], values[i]);

        print ("\n");
        return 0;

    def main (args : array of string): int
        var db = new Database
        rc :int
        if args.length != 2
            print ("Usage: %s DATABASE SQL-STATEMENT\n", args[0])
            return 1

        if !FileUtils.test (args[1], FileTest.IS_REGULAR)
            print ("Database %s does not exist or is directory\n", args[1])
            return 1
      
        rc = Database.open (args[1], out db)
      
        if rc != Sqlite.OK
            print ("Can't open database: %d, %s\n", rc, db.errmsg ())
            return 1
 
        rc = db.exec (args[2], callback, null)
        if rc != Sqlite.OK
            print ("SQL error: %d, %s\n", rc, db.errmsg ())
            return 1
   
        return 0

init
    var SQLLiteTest = new SqliteSample
    params: array of string = {"/root/my-applications/PointOfSale.sqlite", "SELECT * FROM currencies"}
    SQLLiteTest.main(params)



I get:
Code:
# valac --pkg sqlite3 sqlite.gs
sqlite.gs:39.5-39.10: error: syntax error, expected identifier
    params: array of string = {"/root/my-applications/PointOfSale.sqlite", "SELECT * FROM currencies"}
    ^^^^^^
Compilation failed: 1 error(s), 0 warning(s)



Appreciate any pointers.
Edited_times_total
Back to top
View user's profile Send_private_message 
growler


Joined: 24 Mar 2008
Posts: 209
Location: Kapiti - New Zealand
PostPosted: Sat 28 Aug 2010, 03:58    Post_subject: XML-RPC with libSOUP  
I am trying to get data from another application (webERP) over XML-RPC and started to play with libsoup - again there is a vala example which I have tried to hack into Genie but coming unstuck.

I can get the following to compile:
Code:

indent=4]
/* Build with "valac --thread --pkg libsoup-2.4 yourfile.gs */
uses
    Soup
   
init
    var session = new Soup.SessionAsync ()
    ItemCode:string = "DVD-TOPGUN"
    UserName:string = "admin"
    Password:string = "weberp"
   
    var message = Soup.xmlrpc_request_new ("http://localhost/webERP/api/api_xml-rpc.php", "weberp.xmlrpc_GetStockBalance", typeof(string),ItemCode, typeof(string), UserName, typeof(string), Password)
   
    session.send_message(message)
   
    ResponseData:string = message.response_body.flatten().data
   
    ErrorNumber:int = typeof(int)
    try   
        xmlrpc_parse_method_response (ResponseData, -1, ErrorNumber)
        print("Stock of %s = %s",ItemCode, ResponseData)
        print("Error number %d", ErrorNumber)
    except
        print("Could not get webERP API location stock over XML-RPC")

    /*Is this how to create an associative array

    struct LocQty
          quantity : double
          loccode : string

    var StockQuantities = new array of LocQty
    ErrorMessage:string
    xmlrpc_extract_method_response(ResponseData, -1, ErrorMessage, typeof(array of dict of string, double), StockQuantities)
   */


However, I can't get the last bit to xmlrpc_extract_method_response call to work - I think this is supposed to parse the response XML to nice variables. I think the 3rd parameter is supposed to be the data type of the return variables - which is an array of structs - the program as compiled returns:

Code:
# ./SoupXMLRPC
Stock of DVD-TOPGUN = <?xml version="1.0"?>
<methodResponse>
<params>
<param>
<value><array>
<data>
<value><int>0</int></value>
<value><array>
<data>
<value><struct>
<member><name>quantity</name>
<value><string>-1</string></value>
</member>
<member><name>loccode</name>
<value><string>MEL</string></value>
</member>
</struct></value>
<value><struct>
<member><name>quantity</name>
<value><string>0</string></value>
</member>
<member><name>loccode</name>
<value><string>TOR</string></value>
</member>
</struct></value>
</data>
</array></value>
</data>
</array></value>
</param>
</params>
</methodResponse>
Error number 24



So it works with a good XML message returned.

Do I then have to parse the XML using xml as per Caleb's jwmconf example or does that method xmlrpc_extract_method_response do the trick....

This is very steep learning for me, I am in WAY over my head here!

Hope someone has done this before and can point me in the right direction
Back to top
View user's profile Send_private_message 
nikobordx

Joined: 23 May 2009
Posts: 84
Location: Bordeaux, France
PostPosted: Sat 28 Aug 2010, 05:59    Post_subject: Genie and Sqlite  
Hi growler,

Can you try this:

Code:

[indent=4]

uses
    Sqlite
 
class SqliteSample : Object

    db : Sqlite.Database
 
    def callback (n_columns: int, values : array of string, column_names : array of string ) : int
        for i:int = 0 to n_columns
            print ("%s = %s\n", column_names[i], values[i])

        print ("\n");
        return 0;

    def begin (args : array of string) : int
        rc : int
        if args.length != 2
            print ("Usage: %s DATABASE SQL-STATEMENT\n", args[0])
            return 1

        if !FileUtils.test (args[0], FileTest.IS_REGULAR)
            print ("Database %s does not exist or is directory\n", args[0])
            return 1
     
        rc = Database.open (args[0], out db)
     
        if rc != Sqlite.OK
            print ("Can't open database: %d, %s\n", rc, db.errmsg ())
            return 1
 
        rc = db.exec (args[1], callback, null)
        if rc != Sqlite.OK
            print ("SQL error: %d, %s\n", rc, db.errmsg ())
            return 1
   
        return 0

init
    var SQLLiteTest = new SqliteSample
    test : array of string = {"/root/my-applications/PointOfSale.sqlite", "SELECT * FROM currencies"}
    SQLLiteTest.begin(test)


Do not use "def main" in fonction, and "params" for arrays of string.

Nicolas.
Back to top
View user's profile Send_private_message 
growler


Joined: 24 Mar 2008
Posts: 209
Location: Kapiti - New Zealand
PostPosted: Sat 28 Aug 2010, 06:53    Post_subject: Genie and Sqlite  
Not sure what the first parameter was meant to be I made the parameters array to have a blank element since the DB file was the second element and the SQL the third. et voila ...

Code:
test : array of string = {"", "/root/my-applications/PointOfSale.sqlite", "SELECT * FROM currencies"}


Merci beaucoup Nicolas!!
Back to top
View user's profile Send_private_message 
Mobeus


Joined: 26 Aug 2010
Posts: 94
PostPosted: Mon 30 Aug 2010, 22:11    Post_subject:  
With Vala I can't find a means to explicitly close a file opened with FileStream.open. Is there not a wrapper for fclose()? How is it done?

tia
Mobeus
Back to top
View user's profile Send_private_message 
nikobordx

Joined: 23 May 2009
Posts: 84
Location: Bordeaux, France
PostPosted: Tue 31 Aug 2010, 05:31    Post_subject:  
Hi everyone,

growler:
Why not using
Code:
test : array of string = {"/root/my-applications/PointOfSale.sqlite", "SELECT * FROM currencies"}

and change number of your "args" ?

Mobeus:
You don't need to specify to close the file because it is automatically closed!
In GLib's vapi file you can see on the class "FileStream":
Code:
[CCode (cname = "FILE", free_function = "fclose", cheader_filename = "stdio.h")]


See you,
Nicolas.
Back to top
View user's profile Send_private_message 
growler


Joined: 24 Mar 2008
Posts: 209
Location: Kapiti - New Zealand
PostPosted: Tue 31 Aug 2010, 05:33    Post_subject:  
Yes your solution is better.

Have you ever used libsoup - I can't get to grips with the

xmlrpc_extract_method_response method. I find the documentation very cryptic and spartan!!
Back to top
View user's profile Send_private_message 
nikobordx

Joined: 23 May 2009
Posts: 84
Location: Bordeaux, France
PostPosted: Tue 31 Aug 2010, 06:16    Post_subject:  
I made only 2 small samples with libsoup:
http://code.valaide.org/content/genie-libsoup-simple-sample
http://code.valaide.org/content/genie-libsoup-simple-server

I can help you if you post your code (if your code is not top secret ! Very Happy )

Nicolas.
Back to top
View user's profile Send_private_message 
Display_posts:   Sort by:   
Page 32 of 35 Posts_count   Goto page: Previous 1, 2, 3, ..., 30, 31, 32, 33, 34, 35 Next
Post_new_topic   Reply_to_topic View_previous_topic :: View_next_topic
 Forum index » Off-Topic Area » Programming
Jump to:  


Rules_post_cannot
Rules_reply_cannot
Rules_edit_cannot
Rules_delete_cannot
Rules_vote_cannot
You cannot attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group

[ Time: 0.1154s ][ Queries: 13 (0.0133s) ][ GZIP on ]