Layered Widgets and ColorDialog Signals?

[BDC_Patrick]

Hi there..

I´m relatively new to QT and started with the Designer for a basic Layout and add additional, detailed Stuff via CPP.

Now i got two Questions:

1.)
I want to have a View, where i can add Widgets that are layered above each other. Like a Map with different layers.
This view should be put into a ScrollArea to be able to scroll, obviously.

2.)
I added a QColorDialog to a Dialog, that is shown, whenever a Button is clicked. Beside the Button is an empty Frame, that changes its Background Color via setStyleSheet.
I now want to let a SIGNAL from ColorDialog trigger the Slot

void Dialog_ProgramSettings::recolorPreview(QColor col)

i tried:

connect(dialogColor, SIGNAL(colorSelected()),this, SLOT(recolorPreview()));

But always get the Output

No such slot Dialog_ProgramSettings::recolorPreview()

recolorPreview(QColor col) is inside the private slots of the Header file... so.. definitly there.. tried building with qmake, too..

Can someone push me into the right Direction here, pls :)

[jsulm]

@BDC_Patrick said in Layered Widgets and ColorDialog Signals?:

No such slot Dialog_ProgramSettings::recolorPreview()

recolorPreview(QColor col) != recolorPreview()

BTW: Your signal has a parameter.

[BDC_Patrick]

@jsulm That worked, thanks.. Now, jst Prob 1 is remaining..

[jsulm]

@BDC_Patrick said in Layered Widgets and ColorDialog Signals?:

Now, jst Prob 1 is remaining

What exactly is the problem? How to use scroll view? How to put widgets over each other?
Wouldn't it be better to use https://doc.qt.io/qt-5/qstackedwidget.html instead of putting widgets manually over each other?

[BDC_Patrick]

@jsulm But, a Stacked Widget puts the children into different pages, the user needs to switch between them..
I want to make all Children visible above each other..

[SGaist]

Hi,

Do you mean vertically aligned ?
QScrollArea -> set a widget on it if not already provided by designer -> apply a vertical layout (QVBoxLayout) -> add your other widgets to that layout.

[BDC_Patrick]

@SGaist No.. I mean on top of each other..
as if you build a tower of widgets..

like a Tilemap with layers..

[SGaist]

I am not sure I see how you are going to implement user interaction with that.

Can you provide a picture of the UI you want to achieve ?

[BDC_Patrick]

@SGaist
This one is a good example:

and the TilED Mapeditor as well..
where the Tilemap has multiple layers, directly above each other.

[SGaist]

It makes me think about the graphics view framework.

But what kind of widget do you want to put by layers ?

[BDC_Patrick]

@SGaist the Tilemap just as example..
as for now, I need buttons and labels hovering the view below freely.

[jsulm]

@BDC_Patrick said in Layered Widgets and ColorDialog Signals?:

But, a Stacked Widget puts the children into different pages, the user needs to switch between them

No, that's the case for QTabWidget