Why the QTreeWidgetItem's icon is so large?

[Limer]

The two pictures are both 16x16 pixels.

I use them by the below codes:

QTreeWidget::branch:has-children:!has-siblings:closed,
QTreeWidget::branch:closed:has-children:has-siblings
{
    border-image: none;
    image: url(:/images/branch_close.png);
}

QTreeWidget::branch:open:has-children:!has-siblings,
QTreeWidget::branch:open:has-children:has-siblings
{
    border-image: none;
    image: url(:/images/branch_open.png);
}

But as the pic shows, the icon is too large, so I add code treeWidget->setIconSize(QSize(4, 4)); , but it doesn't work.

We can take a look at the Vmware Workstation, it's icon' size is very appropriate.

Can someone give me any advice?

[SGaist]

Hi,

What size are your images ?

[Limer]

@SGaist 16x16 pixels

https://github.com/Hapoa/Visual-Algorithms/blob/develop/src/resources/branch_close.svg
https://github.com/Hapoa/Visual-Algorithms/blob/develop/src/resources/branch_open.svg

[mrjj]

@Limer
Hi
In code , you show that you use PNG files
Doc says
"If a svg is specified, the image is scaled to the size of the contents rectangle."
http://doc.qt.io/qt-5/stylesheet-reference.html
(search for image*)

So are they png or svg ?

[Limer]

@mrjj Actually, i tried both of them.

png first, but find it too large, so try to use svg again.

png and svg files are all 16x16 pixels.

What you mean is I should scale the svg to smaller size (such as 4x4 pixels)?

What you mean is I should scale the png to smaller size (such as 4x4 pixels)?

[raven-worx]

@Limer said in Why the QTreeWidgetItem's icon is so large?:

png and svg files are all 16x16 pixels.

svg is a vector format = they actually do not have a size per se (mostly a hint) and can be scaled to any size without quality loss

[Limer]

@raven-worx Yes, you are right.

[mrjj]

Hi
scaling the SVG won't help as it just scales it up.

I added some free space around the actual image ( the view box in inscape)
to have them be smaller even the actual image was just the same.

Like

You can just use the margin setting to get this automatically.