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Qt-interest Archive, February 2007
Painter Issue.

Message 1 in thread

Hello,

I'm trying to create a composed shape with my painter : 


QRect rectangleLeftUserName(option.rect.x() + 10, option.rect.y(), 

20, 20);

QRect rectangleUserName(option.rect.x() + 20, option.rect.y(), 

100, 20);

QRect rectangleRightUserName(option.rect.x() + 110, option.rect.y(), 

20, 20);

painter->drawEllipse(rectangleLeftUserName);

painter->drawRect(rectangleUserName);

painter->drawEllipse(rectangleRightUserName);


It's creating three different standalone shapes,

is there a way to merge thoses 3 shapes in one graphical element ?

Thanks.

Ben.

Attachment: howTo.jpg
Description: JPEG image

Message 2 in thread

Not sure I understand what you mean. There is no painter->drawEllipseRectEllipse(...)
in qt. But maybe QPicture might do what you need.

Guido

> It's creating three different standalone shapes,
> 
> is there a way to merge thoses 3 shapes in one graphical element ?

--
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Message 3 in thread

I've come up with that code to display my own custom shape using 
QPainterPath :

the "true" rounded edge rectangle.

It's working like a charm, thanks again guys.



My only concern is newing a QPainterPath everytime I want to display one,

any thoughts to improve it ?

//=============================================================================

//=============================================================================

const QPainterPath * ZeContactDelegate::ZeRoundPath(QRectF & rectangle,

QPointF & position) const

{

QPainterPath * myPath = new QPainterPath;

myPath->moveTo(position.x() + (rectangle.height() / 2), position.y());

myPath->lineTo(position.x() + rectangle.width(), position.y());

myPath->arcTo(position.x() + rectangle.width(), position.y(),

rectangle.height(), rectangle.height(), 90, -180);

myPath->lineTo(position.x() + rectangle.height(), position.y() + 
rectangle.height());

myPath->arcTo(position.x(), position.y() + rectangle.height(),

rectangle.height(), -rectangle.height(), 90, 180);

return myPath;

}


----- Original Message ----- 
From: "Guido Seifert" <wargand@xxxxxx>
To: <qt-interest@xxxxxxxxxxxxx>
Sent: Wednesday, February 07, 2007 4:04 PM
Subject: Re: Painter Issue.


> Not sure I understand what you mean. There is no 
> painter->drawEllipseRectEllipse(...)
> in qt. But maybe QPicture might do what you need.
>
> Guido
>
>> It's creating three different standalone shapes,
>>
>> is there a way to merge thoses 3 shapes in one graphical element ?
>
> --
> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx with 
> "unsubscribe" in the subject or the body.
> List archive and information: http://lists.trolltech.com/qt-interest/
>
> 

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Message 4 in thread

> 
> My only concern is newing a QPainterPath everytime I want to display one,
> 
> any thoughts to improve it ?

Do you use it very often in a loop? Does the small time to 'new' a 
QPainterPath object really influences your program? If not, I'd leave it
as it is. Except perhaps I probably would use an auto_ptr as 
return value.

Never used the QPainterPath class, but I don't see some sort of 'clear'
method in the docu. So I suppose creating and destroying is your only
option. If you really hate this, check whether your parameters changed 
during two calls of your method.  

Guido
	 

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