[Interest] Draw a shadow around a Rectangle using DropShadow. Should be possible, right?

[Mark Gaiser]

Done:
https://bugreports.qt-project.org/browse/QTBUG-36689 (DropShadow
doesn't work on rectangle)
https://bugreports.qt-project.org/browse/QTBUG-36690 (Effects not
always applied on application startup)

On Thu, Feb 6, 2014 at 2:48 PM, Mark Gaiser <markg85 at gmail.com> wrote:
> On Thu, Feb 6, 2014 at 2:03 PM, Sze Howe Koh <szehowe.koh at gmail.com> wrote:
>> On 6 February 2014 19:59, Mark Gaiser <markg85 at gmail.com> wrote:
>>> On Thu, Feb 6, 2014 at 11:33 AM, Sze Howe Koh <szehowe.koh at gmail.com> wrote:
>>>> On 5 February 2014 23:35, Mark Gaiser <markg85 at gmail.com> wrote:
>>>>> I can't get it to work with a rectangle..
>>>>>
>>>>> import QtQuick 2.0
>>>>> import QtGraphicalEffects 1.0
>>>>>
>>>>> Rectangle {
>>>>>     width: 800
>>>>>     height: 600
>>>>>
>>>>>     DropShadow {
>>>>>         horizontalOffset: 3
>>>>>         verticalOffset: 3
>>>>>         radius: 16
>>>>>         samples: 24
>>>>>         color: "#80000000"
>>>>>         width: blackRect.width
>>>>>         height: blackRect.height
>>>>>         anchors.centerIn: parent
>>>>>
>>>>>         Rectangle {
>>>>>             id: blackRect
>>>>>             width: 500
>>>>>             height: 50
>>>>>             color: "black"
>>>>>         }
>>>>>     }
>>>>> }
>>>>
>>>> Works for me. I copied your code exactly; you can see the result in
>>>> the attachment.
>>>
>>> I just noticed that as well. On linux it works a lot less stable. Aka,
>>> i have to start the application about 10x before i finally see one
>>> where the shader effects (DropShadow in this case) are applied.
>>>
>>> Also note that you might have a "sort of shadow". It is by no means a
>>> shadow. It's just a "copy" of the rectangle in the color set in
>>> DropShadow. The actual shadow effect (smooth blurred grey.. don't
>>> really know how to call it) isn't applied.
>>
>> Bug report time :-D Would you like to do the honours?
>>
>> Looks like there are two bugs here: 1) Effects don't always get
>> applied on your Linux machine, and 2) DropShadow's doesn't work
>> properly (on Rectangles?)
>>
>> I didn't notice the lack of blurriness until you mentioned it -- never
>> used DropShadow myself.
>>
>>
>> Regards,
>> Sze-Howe
>
> Will do.
> Making reports now.
>
> Generously using your screenshot :)