Qt : A cross platform framework for commercial applications


Qt is a cross-platform application and UI framework for developers using C++ or QML, a CSS & JavaScript like language. Qt Creator is the supporting Qt IDE. Qt Cloud Services provides connected application backend features to Qt applications

What do you get with Qt?

A complete cross-platform software framework with ready-made UI elements, C++ libraries, and a complete integrated development environment with tools for everything you need to develop software for any project. Sounds good?

Tools and IDE

Qt Creator comes with a wide range of integrated tools for both developers and designers. You can design your UI, write your code and much more in one cross-platform IDE. Feel like prototyping? Just press play.

Libraries & APIs

Develop faster and smarter with Qt’s Intuitive and comprehensive libraries and APIs. Never worry about dependencies: We are updating and future-proofing constantly!

1M+ developer community

Qt has an active community which supports you with whatever challenge you may have. You will never feel alone.

Code less, create more, deploy everywhere. Write your source code once, build and watch it run on any operating system and hardware. It’s truly cross-platform.Design for tomorrow, deliver today. Embrace the complete freedom to design tomorrow’s UIs. Use drag-and-drop tools, declarative QML or imperative C++ – the choice is yours.

Qt takes the hassle out of programming and ‘it just feels right’. It’s intuitive, has all the tools you need, comprehensive documentation and full support from a kick-ass community.

Areas where Qt shines :

Embedded Devices : Create C++ embedded software with fluid and responsive 2D/3D UIs for nearly any hardware. Deliver native performance across a wide range of operating systems with fast cross-platform development.

Internet of Things : From connected devices with high-performance graphics to non-GPU long-life battery UIs, Qt is fully scalable to help you squeeze every last drop of performance out of your hardware.

Mobile : Reuse your Qt code in a companion app or create the hottest new 3D game – whatever you need, Qt runs flawlessly on multiple platforms including iOS and Android.

Automotive : Create HMIs for in-vehicle infotainment (IVI), digital instrument clusters & heads-up displays (HUD) that run on one single SoC.

Automation : Design automation systems for smart factories, homes, building and services that integrate with other systems, sensors and triggers. Qt can connect to any thing.

Set-top-box & DTV : Extend your brand across multiple screens with hybrid programming and HTML5, deploy on a wide range of hardware and get cost-efficient maintenance.
Find out how Qt supports STB & DTV development
Medical : Create safe and certified medical devices that comply with IEC 62304 & ISO 14971 and run real-time operating systems (RTOS) on off-the-shelf hardware.
Explore how Qt is the smart choice for your medical project

So what are the catches ? Let see.

  • Qt is innovate
  • Qt is Fun
  • Qt is open source
  • Qt is Alive and backed with dynamic community.

So think Qt when you think about your next application project !

Advertisements

ProcessWire CMS – A Review


There is no need for an intro about CMS in Web Word. It is popular in many names as Joomla, Drupal and mighty WordPress. Though name and approach differs, all of them serve on purpose : Manipulate the Data > Store & Retrieve to display. The Model : View : Controller paradigm is the industry standard structure of most of all CMS.

Well, we have WordPress, Joomla and Drupal but sometimes its good to check out alternatives. Lets take a look over a simple CMS called ProcessWire.

ProcessWire in short ( PW ) is actually a popular CMS, slowly coming out of the shadows of mighty other CMS fellows. PW stands between a pure PHP framework and Full Featured CMS for example ( Concrete 5 ) . PW ships with very minimal and basic functionalities of a Framework but can be extended to any requirement via modules and custom coding. A very important feature of PW is it has no template language. You can code yourself the way you need to display the data.

I know, its a topic of debate : the use of template engine ; but this is all about choice. There are CMS which uses template engine, which does not ; support both.

PW has the philosophy : Everything is a page. Yes, inside PW everything is a page though we can use it as per the requirement. There are 3 main components in PW.

  • Page : serves as the actual page of website. ( home, about, contact )
  • Field : serves as field types ( images, files, forms, text area etc )
  • Template : The structure of data visualization – you can use different templates for different pages or one template for many pages.

So the idea is simple, Build a page with fields in a particular way which is a template. Then call the PW to display it. One another good note of ProcessWire is, no need to tamper with Databases. Whichever fields, we create via Admin, corrspoding tables and types will be created in database. Easy right ?

Like, I said, ProcessWire is somewhat between a framework and CMS ; there are some pitfalls. For examples, there is no site wide settings or global parameters like Site name, Site logo which often we know in WordPress. But its not a big thing for a developer, one can always assign a logo, title for the home page and call it in all other pages dynamically. PW is useful to create medium level websites, as company corporate, NGOs, schools etc. But it is not limited, the real power of PW lies in the core API, which can be used as a Web Application Framework to any extend. Your imagination is the only limit.

ProcessWire image library is really a strong arsenal. A lot of image manipulations are possible. The API is really vast, you can refer the long list of tools here : http://processwire.com/api/ref/

ProcessWire is an open source project with Mozilla Public License. The documentation is good and the community is so active. No need to be afraid of being alone 😉

Here is one website, I have done in ProcessWire : http://insignnia.in

Google Fuchsia : Spring is coming soon…


Its true, Google is working on some thing bigger than usual sweet jellybean flavors. Words are coming out like this will be fully fledged operating system that can run seamlessly across various devices as Mobile, Smart device, PC, Laptop etc. So many rich features will be included inside.

The codename for the Product is Fuchsia, the word actually is name of beautiful purple colored flower. We hope the the product itself will do justice to the name when its  rolls out. Lets see whats inside and sideways on this new item.

 

Feature #1 : The development Process

We know how much difficult it is  to port an App from Android to iOS and any others. Fuchsia comes up with new development kit as Flutter which helps to develop cross platform supporting applications. See how much development time you  can save ?

Feature #2 : Programming Language

Dart is the language mainly used for the coding. It is confirmed that  support for Swift will be the programming language will be there.

Feature #3 : UI

Fuchsia currently offers two layouts: a novel mobile-centric design codenamed Armadillo, and a more traditional desktop experience codenamed Capybara. Armadillo drops the app drawer and shortcuts model for a combined view of Recent Apps, Quick Settings, and your Google Feed. Capybara is still very much a work-in-progress, with only a taskbar containing the time, a placeholder for quick settings, and something reminiscent of a start button.

 

feature #4 : Assistance Capability

Fuchsia is going to be the replacement of ‘ Hello Google ‘. But this time, it will be more polished, well trained, service robot 😛

Traditionally, the problem with doing this is maintaining progress and context. That’s where something called Ledger comes in: once signed in with your Google Account, your applications automatically save their place across devices. Google describes Ledger as “a distributed storage system for Fuchsia.” Everything is stored in the cloud.

So when you will shake hands with it ? sooner or later, but sure.. thats all have to say now 🙂

Plasma Mobile : time to look beyond Android


Its all about alternatives, when it comes to the technology, the possibility of alternatives makes the spirit intact. Microsoft, the first and biggest monopoly leader in IT world. But  they are fading into the curtain history.  Google changed the texture of Operating System. Android brought the mobility in all meaning.

Now, so many versions of honeycombs, jellybeans are out. All of those juicy flavors are already set. Its time to analyze the clear picture. Android is slightly growing into the specter of Microsoft. We all use Android, have to obey those mighty Google Services. We have no idea how much data mining they are doing in our mobile, though if we know, we dont have anything to do, we dont know whats going on.

Another hiccup of Android world, is the development. In order to create a simple android app, we have to install GigaBytes of Android Studio, and keep updating chunks of another GBs.

May be, its time to look beyond Android. Guess what, a few people already did. Here we can read about of those onlookers. Check Plasma Mobile

The team behind this mobile OS, is no one else but that ‘Kool ‘ KDE !. Yeah, your most eyecandy Linux DE is coming to your mobile screen too.

 

KDE Plasma is the next generation DE implementation. Lots of feature filled plasma shell produce mouthwatering performance to the User. All of those features a Desktop/Laptop enjoys, we can taste all in a mobile screen too.

 

Key features and notable points about KDE’s Plasma Mobile can be summarized as below:

  • Free and open source mobile OS
  • Based on Kubuntu, with an Android graphics driver it runs on top of the Wayland display server
  • Privacy focused
  • Just like desktop version, customization and personalization is also
  • focus of Plasma Mobile
  • Plasma apps and widgets
  • Ubuntu touch apps
  • Sailfish apps (proposed)
  • Nemo apps (proposed)
  • Android apps (proposed)

 

 

 

check this video also :

 

Is Plasma Mobile only the onlooker beyond Android ?  No. There a few other brave vikings too. View below :

There is nothing wrong with Android, but… some times too much mining is a wrong thing…

Invite all friends to LIKE your page in facebook


facebook-logo-182x84

facebook പേജ് ലേക്ക് നിങ്ങളുടെ എല്ലാവരുടെയും friends നെ ഒറ്റയടിക്ക് invite ചെയ്യാൻ കഴിയില്ല. ആ ഫീച്ചർ ഇപ്പോൾ facebook നിർത്തി. ചില സാഹചര്യങ്ങളിൽ അത്തരം ആവശ്യം നടപ്പിലാക്കാൻ ഒരു ചെറിയ trick .
നോട്ട്: chrome ബ്രൌസർ ഉപയോഗിക്കുക, ഡെസ്ക്ടോപ്പ് / ലാപ്ടോപ് ഉപയോഗിക്കുക , ബ്രൌസർ ഇൽ ജാവാസ്ക്രിപ്റ്റ് enable ആയിരിക്കണം
1. invite ചെയ്യേണ്ട പേജ് ഇൽ പോകുക . (
2. click Invite friends to like this Page ചെയ്യുക,എന്നിട്ട് ബ്രൌസേരിന്റെ  അഡ്രസ്‌ ബാർ  പോയി
3. താഴെയുള്ള ജാവാസ്ക്രിപ്റ്റ് കോഡ് അതുപോലെ തന്നെ copy എടുത്തു, ബ്രൌസർ ന്റെ അഡ്രസ്‌ bar ഇൽ പേസ്റ്റ് ചെയ്യുക. ശ്രദ്ധിക്കുക, സ്പേസ് , വൈറ്റ് സ്പേസ് ഈ കോഡിന്റെ ഇടയില വരാൻ പാടിലാ. javascript: മുതൽ അവസാനം വരെ ഇടയ്ക്കു വൈറ്റ് സ്പേസ് ഒന്നും തന്നെ ഇല്ല

please click here to get javascript code

4. പേജ് അഡ്രസ്‌ bar enter ബട്ടൺ അടിക്കുക

now the invite process will start. Sit back and relax !!

Editing/Customize Concrete 5 Theme


Concrete 5 is an awesome CMS, yeah I know I write this post in my wordpress blog :P. But aside of that, c5 is seriously a rock solid tool for building  corporate project.  There is a good strong community to help your issues and doubts as well.

I want to share one small tip with you, that is editing/customizing a theme in Concrete 5. The general method is to over ride the theme packed with c5 which means a core theme. Full tutorial is here.

But you might get into an issue ‘new edited theme is not listed in the dashboard’ or ‘concrete 5 new theme is not visible in dashboard.’

 

In such case, please consider following tips to make it work

Example, If you want to use “elemental” theme as starting point do this:
Copy this folder

concrete/themes/elemental

to

application/themes/

and change folder name to “test”
then change:

application/themes/test/description.txt

to

Test
This is my first template

then change

application/themes/test/page.php

first three lines

<?php
namespace Application\Theme\Test;
use Concrete\Core\Page\Theme\Theme;
class PageTheme extends Theme{

and change

application/themes/test/css/main.less

line 6 to:

@import "../../../css/build/core/include/mixins.less";

 

Hope it helps. Happy Concreting !!

 

One Stop solution for adjust screen brightness in Linux


This one is just temp/quick fix for brightness issue for Linux machines. Some people, like me cannot stand with higher values of computer screen brightness. We surely adjust as per our eye suitability.  But what if we work on Office Machines or using a friend’s one ? May not all the time, we shall have full permission to change the screen brightness. In such cases, this quick fix can be a heaven for your eyes. 😛

First

we find which display device we are connected to. open your Terminal and fire this below command. Please dont type ‘#’ also. It is for just to indicate that is a terminal / shell env.
#xrandr -q | grep ” connected”

Now, this will output the connected display such as

VGA1 connected primary 1366×768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm 

This is in my case, but it will vary as per systems. For me VGA1 is my display. Some times it may show LVDS1 and so on.

Now, use the second command for set up our brightness level

#xrandr –output VGA1 –brightness 0.6

that is, we set the brightness 60% of maximum brightness. This is ok for my eyes, but not for my Boss, so whenever he leans to my monitor for some thing, I will set this back to 1. voila !

So thats how Save Eye from Blindness going !! 😛