today I will post  a script based on Qt/Kde coding style using astyle command in a woking svn tree to fix coding style.

This script works like the scrip from the last post but now to work in a SVN tree.

It will check the coding style just in the modified and added files to the svn commit.

–

#!/bin/bash

astyle --indent=spaces=4 --brackets=linux \
      --indent-labels --pad=oper --unpad=paren \
      --one-line=keep-statements --convert-tabs \
      --indent-preprocessor \
      $(svn status | awk '(/^M/ || /^A/) &&
            (/\.h\>/ || /\.c\>/ || /\.cpp\>/){print $2}')

–

You can get the source code from here.

References:

http://ragner.org/programming-languages/qt/174

http://techbase.kde.org/Policies/Kdelibs_Coding_Style

today I will post  a script to check and fix Qt/Kde coding style using astyle command in a woking git tree.

—

#!/bin/bash

astyle --indent=spaces=4 --brackets=linux
      --indent-labels --pad=oper --unpad=paren
      --one-line=keep-statements --convert-tabs
      --indent-preprocessor
      $(git-status | awk -F : '(/modified:/ ||
	/new file:/) && (/.h>/ || /.c>/ ||
	/.cpp>/) {print $2}')

—

Download the source code here.

So you just need run the script in a working git tree to check and fix Qt coding style.

It will check and fix Qt coding style in all files modified in the git tree.

To force the coding style fix before each commit you can put the script as git’s hook script, putting it in the .git/hooks/pre-commit file of your project.

To enable the pre-commit hook script just run:

$ chmod +x .git/hooks/pre-commit

References:

http://astyle.sourceforge.net/

http://techbase.kde.org/Policies/Kdelibs_Coding_Style

http://git-scm.com/

today I will post the source code for the following satechart for a simple Qt state machine.

You can get the source code here.

—

    QPushButton button("Ok");

    /* The state machine. */
    QStateMachine machine;

    /* Three states to the state machine. */
    QState s1;
    QState s2;
    QState s3;

    /* For each state it sets the button's text property. */
    s1.setPropertyOnEntry(&button, "text", "In state S[1]");
    s2.setPropertyOnEntry(&button, "text", "In state S[2]");
    s3.setPropertyOnEntry(&button, "text", "In state S[3]");

    /* Adds the transitions to each state */
    s1.addTransition(&button, SIGNAL(clicked()), &s2);
    s2.addTransition(&button, SIGNAL(clicked()), &s3);
    s3.addTransition(&button, SIGNAL(clicked()), &s1);

    /* Adds the three states s1, s2 and s3 to the state machine. */
    machine.addState(&s1);
    machine.addState(&s2);
    machine.addState(&s3);

    /* Sets the state s1 as initial state. */
    machine.setInitialState(&s1);

    /* Starts the state machine. */
    machine.start();

    button.show();

—

When any of the states is entered, the button’s text will be changed accordingly.

Reference:

http://doc.trolltech.com/solutions/4/qtanimationframework/statemachine-api.html

Leandro, George, André, eu(Ragner), Gustavo, Hilda e Marcelo.

Foto para registrar a presença do Saymon.

No último sábado dia 11/04/09 teve o 3º evento de comemoração dos 10 anos de amizade da turma 1ºAI 99,

como não podia deixar de ser foi muito divertido.

Todo mundo sorrindo, brincando, botando a conversa em dia e por aí vai ..!!

A Hilda com as risadas de sempre … hehe … super alto astral e a novidade ficou por conta das presenças do Leandro e Samara. A Samara não vi porque tive que sair antes, por isso não tenho fotos dela, mas ela também esteve por lá.

Este post é só para deixar registrado esse evento que foi show de bola!

Um grande abraço para toda essa turma de grandes amigos.

continuing the posts about Qt, today I will write how to implement a Qt application using QStateMachine from the new Qt animation framework.

The code below demonstrate the core functionality of the State Machine API.

= main.cpp =

/* Includes */
#include <QtGui/QApplication>
#include <QtGui/QPushButton>
#include <QtCore/QStateMachine>
#include <QtCore/QFinalState>
#include <QtCore/QState>

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QPushButton button("Exit");

    /* State machine that will finish when a button is clicked. */
    QStateMachine machine;

    /* The initial state. */
    QState *s1 = new QState();

    /* The final state. */
    QFinalState *s2 = new QFinalState();

    /* Instructs state s1 to set the property "text" of the button to the given
       text "Click me" when the state is entered. */
    s1->setPropertyOnEntry(&button, "text", "Click me");

    /* Instructs state s1 to execute a transition to state s2 when the button
       will be clicked. */
    s1->addTransition(&button, SIGNAL(clicked()), s2);

    /* Adds the states s1 and s2 to the state machine. */
    machine.addState(s1);
    machine.addState(s2);

    /* Connects the signal finished() from the state machine to the quit() slot
       from the QApplication. So the application is going to quit when the state
       machine will be finished. */
    QObject::connect(&machine, SIGNAL(finished()), QApplication::instance(),
        SLOT(quit()));

    /* Sets the state machine's initial state; this state is entered when the
       state machine is started. */
    machine.setInitialState(s1);

    /* Starts the sate machine. */
    machine.start();

    button.show();
    return app.exec();
}

=

The code above implements a state machine with two states s1 as initial state and s2 as final state.

When the state machine is started it starts into state s1 that sets the button’s text property to “Click me”.

The transition from s1 to s2 is controlled by the single QPushButton. When the button is clicked the machine executes a transition from state s1 to state s2.

When the state machine enter into the state s2, the final state, it emits the finished() signal that is connected to the quit() slot from QApplication, so it calls the quit() function and the application is finished.

References:

http://www.qtsoftware.com/products/appdev/add-on-products/catalog/4/Utilities/qtanimationframework/

http://doc.trolltech.com/solutions/4/qtanimationframework/statemachine-api.html

http://ragner.org/programming-languages/qt/142

I am studying Qt and I want to do some posts about.

So I will start with a simple hello world and talking how to compile its source code.

= main.cpp =

#include <QtGui/QApplication>
#include <QtGui/QLabel>

int main(int argc, char *argv[])
{

    /* All Qt application need implements a QApplication */
    QApplication app(argc, argv); 

    /* Here QLabel is the main window! */
    QLabel label("Hello, world!");

    /* Shows the QLabel */
    label.show();

    /* Enters the main event loop and waits until exit() is called. */
    return app.exec();
}

=

Now you need to create the .pro file with the project’s configurations and dependencies.

To create the .pro file you can just run:

$  qmake -project

The command above will create a .pro file with the same name of the directory where is the source code.

To create the Makefile run:

$ qmake

So to complie the source code run:

$ make

You will see a binary file with the same name of the .pro file.

References:

http://doc.trolltech.com/4.5/classes.html

http://doc.trolltech.com/4.5/widgets-tutorial.html

http://doc.trolltech.com/4.5/qmake-manual.html

sometimes I like to rename my photos by date/time

so I use the command jhead to do the work, just running:

$ jhead -n%Y%m%d-%H%M%S *.jpg

This command renames all files with the jpg extension with its time/date stamp in the format YYYYMMDD-HHMMSS.jpg

Reference:

http://www.linux.com/articles/56588

Olá pessoal,

eu estudei na  Fundação Matias Machline -FMM no ensino médio onde me formei em Técnico em Processamento de Dados,

hoje a escola tem outro nome  Fundação Nokia – http://www.fne.org.br . Ontem foi o primeiro evento de comemoração de 10 anos de amizade da turma do 1º ano de informática de 1999 (1ºAI 99), como reencontrar esta turma é sempre muito divertido, descontraído, etc.

Ontem não poderia ser diferente, foi muito legal rever o pessoal, ou melhor parte deles, tivemos um ambiente de muitas risadas e boas lembraças de uma época que com certeza deixou muitas saudades para todos.

Quero deixar aqui o meu muito obrigado a essa galera por ter comparecido, 10 anos de amizade não é para qualquer turma!

Um grande abraço!

este é o meu primeiro post de teste desta página!

Eu estava querendo criar páginas no wordpress com o conteúdo específico de algumas categorias.

Como eu não sou um programador Web tive um pouco de dificuldade para fazer isso, mas caso exista mais alguém tendo o mesmo problema, aqui vai a dica.
Vou explicar o que eu fiz no meu site.
Eu coloquei no arquivo header.php do meu tema o seguinte código:

diff --git a/header.php b/header.php
index 42f6f6c..845e45f 100644
--- a/header.php
+++ b/header.php
@@ -65,6 +65,8 @@
   <ul class="lavalamp" id="lmenu">
         <li <?php if(is_home()){echo 'class="current_page_item"';}?>>
             <a href="<?php echo get_option('home'); ?>/" title="Home">Home</a>
         </li>
         <?php wp_list_pages('title_li=&depth=1&sort_column=menu_order');?>
+
+        <?php if(is_home()){query_posts('cat=-9');}
+                     elseif(is_page('100')){query_posts('cat=9');}?>
  </ul>
  <div class="clear"></div>

O código com sinal + (de mais) no início é o código que foi adicionado.
Basicamente o que ele faz é:
1 – Verificar se a página é a home e então ele faz uma query dos posts menos a categoria 9 (nove)

senão

2 – Verifica se é a página 100(Blog) e então faz uma query dos posts que estão na categoria 9 (nove)
E então eu tenho na minha Home todos os meus posts menos os posts da categoria 9(Blog) que são posts mais pessoais e em pt_BR.

Obs.: A categoria não pode ter o mesmo nome da página, senão você terá problemas para mostrar um único post.

Referência:

http://codex.wordpress.org/Function_Reference

After some time finally I will write a new post here.

Today a will write how to maintenance debian/changelog file in a source package.

= Configuring environment variables =

First you need export some environment variables.

EDITOR="vim"

DEBFULLNAME=”Ragner Magalhaes”

DEBEMAIL=”foo@ragner.org”

export DEBEMAIL DEBFULLNAME EDITOR

You can put these lines above in your .bashrc file

= To create a new debian/changelog file =

In the project’s directory just run

$ dch --create

To create a new debian/changelog file.

= To increment the Debian release number =

To increment the package release number run the follow command

$ dch -i -U -D "unstable"

So it will open the debian/changelog file to you  write some comments.

Thanks to Anderson Lizardo[http://lizardo.wordpress.com/] and Alvinho.