October 29, 2010

yaoyulian yaoyulian
Lab Rat
7 posts

[Solved] How Can I make the QToolBox panel transparent?

 

Is there a Sub-Controls like QToolBox::tab make the Qwidget in QToolBox transparent?
I tryed:
1) QWidget#page{background:rgb(12,34,56);}
this work, but
2)QWidget#page_2{background:transparent;}
this one not work.
I guess there maybe a Sub-Controls like QToolBox::tab.
is it?
How Can I reach my purpose?

4 replies

November 2, 2010

Antonio Di Monaco Antonio Di Monaco
Lab Rat
117 posts

Hi,

did you try “background: rgba(12,34,56,0);” ??

T.

November 3, 2010

yaoyulian yaoyulian
Lab Rat
7 posts

Thanks for Antonio Di Monaco’s reply.
“background: rgba(12,34,56,0)” can’t work too.
From the source code, I found out that QToolBox is made up by :

  1.         QToolBoxButton *button;
  2.         QScrollArea *sv;
  3.         QWidget *widget;

I tryed :
  1. background-color:transparent;
  2. }
  3. QWidget#page_2{background:transparent;}

in toolbox’s “change stylesheet” menu.
this can change the toolbox transparent.

April 5, 2013

ChanchoCiego ChanchoCiego
Lab Rat
42 posts

Hello,

  1. {
  2.     background-color: background: rgba(12,34,56,0);
  3. }

but also makes transparent the sub-controls of the QWidget from QToolBox

sorry for my bad (bing-translator) english

greetings

April 9, 2013

raven-worx raven-worx
Gene Splicer
1626 posts

try setting the following on the Toolbox window:

  1. setAttribute(Qt::WA_TranslucentBackground);
  2. setWindowFlags(Qt::FramelessWindowHint);

(beside your stylesheet declaration)

or another possibility: QGraphicsOpacityEffect [qt-project.org]
But this also applies for the child widgets.

btw: This is no valid stylesheet declaration AFAIK.

ChanchoCiego wrote:
Hello,
  1. {
  2.     background-color: background: rgba(12,34,56,0);
  3. }

Also a nice trick i used to do was setting the background color not to fully transparent but to something like this: rgba(0,0,0,1)
This almost has the same effect like transparency but it’s not. Thus it’s also treaded differently by the windowing system and may help you.

 
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