Static library don't see image paths

[AndrzejB]

In my minimal example is main project and static library with Qt widgets.
Both have qrc files, like

<!DOCTYPE RCC>
<RCC version="1.0">
<qresource prefix="/">
    <file>1.png</file>
</qresource>
</RCC>

whereas main app can see paths do png images,
library can't.

Second problem:

although images are 48x48 and even explicit is set size to 48x48

    QIcon icon;
    icon.addFile(":1.png", QSize(48, 48));
    button->setIcon(icon);
    setCentralWidget(button);

Digit "1" is too small, seems to be resized to 16x16 or 24x24).

I have minimal example in github:minimal-examples/static-lib-res

[sierdzio]

@AndrzejB your library needs to use Q_INIT_RESOURCE

[AndrzejB]

Helps

void initLibraryResources() {
    Q_INIT_RESOURCE(2);
}

Q_CONSTRUCTOR_FUNCTION(initLibraryResources)

in cpp library file.
Is "2" because is it filename of qrc without extension: 2.qrc

second , smaller problem - I don't know why icons on buttons is so small?

[SGaist]

@AndrzejB hi,

What is the original size of the icons ?
On which kind of button are you setting them ?
How are you setting them ?

[SimonSchroeder]

@AndrzejB said in Static library don't see image paths:

second , smaller problem - I don't know why icons on buttons is so small?

Do you have scaling enabled for the screen in your OS settings (e.g. 150% or 200% on Windows for a 4K display)?

[AndrzejB]

My 1.png has size 48x48 pixels.
I use it:

    QPushButton *button = new QPushButton(this);
    QIcon icon;
    icon.addFile(":1.png", QSize(48, 48));
    button->setIcon(icon);
    setCentralWidget(button);

not only png is 48x48 but also i set QSize(48,48) and icon shrinks

Here is comparing: my application with big button and snall icon and below original icon scaled 100% in Gimp.

[SGaist]

What is the button final size ?

[AndrzejB]

At end LibWindow::LibWindow

qDebug()<<button->size();

is QSize(100, 30)
but finally, after lw.show()

lw.show();
qDebug()<<lw.button->size();

is QSize(200, 100)

[SGaist]

You should check that either in the showEvent method of the class or check the size through a slot once the button is actually visible.

Calling show on a widget just schedules its visibility for the next round of the event loop so requesting its size right away won't give the correct result.

[SimonSchroeder]

@AndrzejB said in Static library don't see image paths:

original icon scaled 100% in Gimp

Again, do you use display scaling? Gimp might adjust what "100%" means based on display scaling.