[Qt-interest] Best way to implement a group of Widgets

[Abhishek Patil]

Rohan Prabhu wrote:
> I want to implement a QWidget derived class which acts like a group of
> widgets. I just need ideas on how to do it best. My concerns currently
> are:
>
> 1. How to implement the paintEvent()? Inside the paintEvent() of my
> Parent Widget, do I call the paintEvent() of every other child widget?
>   
Bit confusing but what I understand is every child widget will have 
there own paintEvent ()
so as u say update in parent widget every child will automatically 
update itself..
> 2. How do I handle positioning? I want that each child widget be
> positioned by nothing but x and y co-ordiantes relative to the parent
> widget. How do I go about doing this?
>   
If you have such a situation
MyParentWdiget::MyParentWidget(QWidget* parent)
       :QWidget(parent)
{
       Mychild child = new Mychld(this);
*       //here you can do this
       child->setGeometry(this->x(),this->y(), 100,100);
*}

or in child class

MyChildWdiget::MyChildWidget(QWidget* parent)
       :QWidget(parent)
{

*       this->setGeometry(parent->x(), parent->y(), parent->width(), 
parent->height());*
}
Note: any one of them is will do your job
> 3. Each of my child widget will be QWidget derivates, not QWidgets, so
> how do I implement the 'Widget stack' as Qt calls it. I also need to
> implement it properly so that a widget higher in the stack goes on the
> front or back of other widgets as appropriate.
>   
I didnt understand this but if you are talking about QStackWidget so its 
simple  just have a look http://doc.trolltech.com/4.6/qstackedwidget.html
> 4. Can I make my child widgets draggable?
>
>   
I am not sure but i think yes u can ....
> I have tried doing a little thinking from my side. But, I've mostly
> thought of a parent class with a QVector<CmWidget*> to hold my widgets
> and I'm absolutely clueless of how to implement the paintEvent().
>
> Any help is truly appreciated.
>
> regards,
> rohan
>
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>   

-- 
Abhishek Patil | http://thezeroth.wordpress.com
+91-9620022244 | abhishek at thezeroth.net

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