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