Dynamic property and stylesheets

[aamer4yu]

What do you mean? Change the colour of the frame. If a particular widget has one, of course and your style supports it.

I mean how can we achieve the following effect with QPalette -
"border : 3px solid blue" ??

Well from the discussion can I assume the following -
For style sheets involving dynamic properties, you will need to yourself re-apply the style sheet once the dynamic property changes.

and since I want this border color based on dynamic property, how should I manage the stylesheet ? Because I have a single stylesheet file and applying the whole again might be heavy, isnt it ?

[wysota]

I mean how can we achieve the following effect with QPalette -
"border : 3px solid blue" ??

You can't. You can't ADD elements using QPalette, you may only modify colours of existing ones. If you want to add an extra frame to a widget then subclass it.

Well from the discussion can I assume the following -
For style sheets involving dynamic properties, you will need to yourself re-apply the style sheet once the dynamic property changes.

Yes, that's correct.

and since I want this border color based on dynamic property, how should I manage the stylesheet ? Because I have a single stylesheet file and applying the whole again might be heavy, isnt it ?

You can reapply stylesheet on the widget only if you make sure the border is set by the widget's stylesheet and not the application stylesheet.

[aamer4yu]

You can reapply stylesheet on the widget only if you make sure the border is set by the widget's stylesheet and not the application stylesheet.

But I was thinking of using a single style sheet on the appliction which will handle both cases.

How to achieve this -
Say I have a stylesheet that says -
QWidget[myProperty="true"] { border: 3px solid red; }
so when my dynamic property becomes true, I apply the above stylesheet. Till here fine.
Now when the dynamic property becomes false, what styleseheet to apply ?
Since the border wont be same for all widgets, it will vary from pushbuttons to line edits to combo box etc.
So what stylesheet to use so that normal border for respective widgets are drawn ?

[wysota]

But I was thinking of using a single style sheet on the appliction which will handle both cases.

You can't have them all. Life would be boring if everything was easy.

Now when the dynamic property becomes false, what styleseheet to apply ?

The same one.

[aamer4yu]

Quote:
Now when the dynamic property becomes false, what styleseheet to apply ?
The same one.

It means border needs to be specified for all widgets to be used ? How can I use the Qt default borders ?
I mean QLineEdit has different kind of border than QListWidget. So in my stylsheet if I write -
QLineEdit[myProperty="true"] { border : 3px solid blue }
QLineEdit[myProperty="false"] { border : none } // --> this will make it borderless, while I want the default Qt border for QLineEdit. What to write instead of none ?
This applies to all other widgets.

[btw thanks for patiently answering my queries till now ]

[wysota]

When you start using stylesheets, you can forget about default decorations, especially on Windows and Mac. I'm not sure what you are trying to obtain but if you just want to mark a widget that has a property set, apply an event filter on your application object and whenever you receive a paint event, draw the widget as usual but also draw a border around the widget like Designer does with layouts,

[aamer4yu]

I'm not sure what you are trying to obtain but if you just want to mark a widget that has a property set, apply an event filter on your application object and whenever you receive a paint event, draw the widget as usual but also draw a border around the widget like Designer does with layouts,

How to draw the border ? We will receive the paint event in eventFilter, then where to draw the border ? we cant draw outside widgets. Can you show a psuedo code ?