Qt-creators’s shortcut reference card.
In previous post I wrote how to create plugins for Qt-creator. In this mini post I’d like to share one more helpful information about Qt-creator.
Good guys form KDAB created and shared Qt Creator reference card. This nice reference card helps you to easily adapt to new IDE.
Links for download:
Qt Creator Reference Card – A4
Qt Creator Reference Card – US Letter
Qt Creator Reference Card Mac – A4
Qt Creator Reference Card Mac – US Letter
qtcreator reference card
You can click to picture to view how it’s looks.
I wish you a fan development with Qt-creator.
Unique visitors to post: 16How-to write your own plugin for Qt-Creator.
Qt-creator is rather new and extremely dynamic growing project. The main benefits: cross-platform, suitable, fast and scalable.
It’s a link to official page of project.
Small video preview:
Qt-creator’s whitepaper.
Here you can download latest snapshots.
Manual about writing plugins inside (traffic warning, 2.5Mb will be loaded).
Read more
Unique visitors to post: 41I added new feature to Qt-creator.
Hello. I started qt-creator hacking two days ago. It took one evening to understand internal basics and one evening to decide hw to realise this feature. And so one hour to implement it.
You can see results in my “merge request” on gitorious .
I recorded small video to show this feature.
I changed FolderNode class, now it has property FileType contentType(). This property represent content type of folder. And added excludeFolderType property to FlatMode. This property exclude Folder with children with appropriate type from model.
Why I did it:
1. I’d like to understand internals of Qt-creator.
2. Got some experiences and skill.
3. Help to make Qt-creator better.
Also I planing to add version control system status to project tree and Tree view of File system view plane.
Hope to see this feature in master branch in near future.
P.S.: It was my first experience with gitorious.
Unique visitors to post: 10Private slot implementation in pimpl pattern by Qt-way.
Introduction.
Some time before I wrote about pimp pattern by Qt-way. In that post I was trying to show you the good way of using pimpl pattern, and use it at all. Especially when you implement your own library. Binary compatibility is good idea and d-pointers help to make it easily. Now I’ll try to extend you knowledges about this pattern, and show you new useful tool for making d-pointers better and more flexible. The next post is finally will close the pimpl topic: it will be about shared d-pointers and implicit sharing. But this topic is about private slots, the mechanism, that common used by Qt classes.
What is it? And why to use it?
Private slot is extension of d-pointers. Private slots give you way to realize slots in private class, even if private class is not QObject ( it’s not QObject almast in all classes ). But public class have to be QObject. Really the slot is not Private’s class slot, it is part of public class.
Why we need slot in private class? Let’s look at some example. There is exists QAbstractScrollArea class.It’s simply displays it’s view
port widget, and move it, if it has large geometry. QAbstractScrollAreaPrivate has two QScrollBars to make opportunity to user move viewport’s widget. Ok, and what to do when user changed scrollbar’s value ? In common way we need to connect appropriate signal of scrollbar to slot of our class, that implement necessary behaviour (scroll in our case). But this slots will became available outside our class in this case. It’s not good idea to show private implementation outside. The other possible solution is to make private class derived from QObject. Don’t do this (you have very heavy reasons to do it, and private slots is not one of them)!!!
Don’t worry, Trolls made a grade solution – private slots! This is very simple and flexible way to resolve this issue.
Unique visitors to post: 132Pimpl’s, d-pointer’s, cheshire cat’s source code example.
This post is part of this post
.pro file:
TEMPLATE = lib
HEADERS += myclass.h \
myclass_p.h \
myclassderived.h \
myclassderived_p.h
SOURCES += myclass.cpp \
myclassderived.cpp
Unique visitors to post: 37Pimpl. D-pointer. Or Cheshire cat by Qt.
Introduction.
Qt Logo
You can find Pimpl declaration in Qt documentation, while serfing in Assistent or qt doc site. Also those, Who looked inside in source code of Qt libraries, can found some strange macros: Q_DECLARE_PRIVATE, Q_D, and strange header files with names, ended with “_p.h”. Do you want to know something about this Qt’s Magic ?
In this post I am going to light this magic, and show you that it’s raser simple and useful (And why Qt hide this from us?
).Also this post may be useful for hacking or reversing Qt source code. This information helps you better understand of structure and relaying of Qt classes.
Русская версия
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Unique visitors to post: 258Code less, Create more, Deploy everywhere. Indeed ? Part 1: Introduction.
Hello All. I just think about Cross-platform development of end-user application. And found that it’s much more difficult than might be. I think it’s terrible and it’s break’s IT evolution at all. 
It’s very sad, and It’s time to think about decision.
Maybe you think I’m drank or it’s paranoia ? Maybe, But let’s see more detailed on it.
What we haver now ?
In our days we have two main branches of end-user hardware devices:
1. portable/embedded/low-resources devices
2. desktop/laptop devices
First category is handled devices, PDA, communicators, Set Top Boxes, industrial devices, Digital Secure Systems, Smart Houses, Phones, Multimedia centers, etc… Let’s call them embedded systems: ES.
The second category is personal computers and laptops. Let’s call them desktop systems: DS.
Unique visitors to post: 12
