Search the layout of a widget

bozo6919

I have a QWidget and I want to know its layout.
I try this but it doesn't work.

QVBoxLayout *layout = (QVBoxLayout *)widget->parentWidget()->layout();

It's my window : black squares are layout, and two widgets separated by a splitter who contain them.
I know the first widget and I want to know its layout: the big black square.
Somebody know?

Ps : Sorry if I post a lot of subject in the forum but I begin to learn Qt the last week.

bozo6919

I have something but with some bugs too :/

I have to save a configuration for example that :

How can I do with QSettings for save all these data ? I have this :

    QSettings settings("settings.ini", QSettings::IniFormat);

    settings.setValue("MainWindow/geometry", window->saveGeometry());
    settings.setValue("MainWindow/state", window->saveState());
    settings.setValue("MainWindow/nbrTabbedWindow", tabbed.size());
    for (int i = 0; i < tabbed.size(); i += 1) {
        QString path = "MainWindow/TabbedWindow/" + QString::number(i);

        settings.beginGroup(path.toStdString().c_str());
        settings.setValue("splitter/geometry", tabbed[i]->splitter->saveGeometry());
        settings.setValue("splitter/state", tabbed[i]->splitter->saveState());
        settings.setValue("containerWidget/geometry", tabbed[i]->containerWidget->saveGeometry());
        settings.setValue("nbrWindows", tabbed[i]->windows.size());
        for (int j = 0; j < tabbed[i]->windows.size(); j += 1) {
            QString pathWindowGeo = "/windows" + QString::number(j) + "/geometry";
            QString pathWindowSta = "/windows" + QString::number(j) + "/state";
            QString pathContentTextGeo = "/contents" + QString::number(j) + "/text/geometry";
            QString pathContentTextTxt = "/contents" + QString::number(j) + "/text/text";
            QString pathContentWidgetGeo = "/contents" + QString::number(j) + "/widget/geometry";
            QString pathContentWidgetSty = "/contents" + QString::number(j) + "/widget/styleSheet";

            settings.setValue(pathWindowGeo.toStdString().c_str(), tabbed[i]->windows[j]->saveGeometry());
            settings.setValue(pathWindowSta.toStdString().c_str(), tabbed[i]->windows[j]->saveState());
            settings.setValue(pathContentTextGeo.toStdString().c_str(), tabbed[i]->contents[j]->text->saveGeometry());
            settings.setValue(pathContentTextTxt.toStdString().c_str(), tabbed[i]->contents[j]->text->text());
            settings.setValue(pathContentWidgetGeo.toStdString().c_str(), tabbed[i]->contents[j]->widget->saveGeometry());
            settings.setValue(pathContentWidgetSty.toStdString().c_str(), tabbed[i]->contents[j]->widget->styleSheet());
        }
        settings.endGroup();
    }

But There are not other ways more simple?
And with my method, I cannot for the moment save splitter's children

SGaist

Hi,

Why do you want to know the layout of the parent of your widget ?

bozo6919

for remove this widget and apply another widget

SGaist

Then you are doing it from the wrong place.

Can you explain what exactly you want to achieve with your application ?

bozo6919

I have for beginning à QMainWindow.
I apply to them à QWidget.
At this QWidget, I apply a QVBoxLayout
At this QVBoxLayout, I apply a QWidget named ContentPanel.
What I Want is when my mouse is on a widget named ContentPanel, the layout of this widget remove this widget, I create another QWidget named ContentPanel, and I apply at those ContentPanel a QSplitter.
I have now 2ContentPanel separated by a QSplitter
If I selected the other QWidget named ContentPanel, it has to do the same.

My program has to do this at infinite

(Sorry for my English again ^^')

SGaist

You want to add a new widget each time you hover over any of them ?

bozo6919

@SGaist Yes, separated by a QSplitter

SGaist

Can you explain why ?

bozo6919

It's for my job, I'm student

SGaist

I meant: why do you want to have new widgets created as soon as you hover over one of them ? Because it means that each time your mouse cursor goes over any of them there's a new one that's going to appear so it can very quickly becomes a mess.

bozo6919

I saw this post : https://forum.qt.io/topic/84616/replacing-a-widget-with-another-one-containing-splitter/3
I want to do like him, look at this picture :

Evert box have to be separated by a splitter. But I don't know how to apply at one box two splitters... :/
I know that I can apply container with QVBoxLayout and QWidget but I don't know how to do what I want with that

SGaist

Ok, click is not the same as hover and definitely less dangerous in terms of accidental widget explosion. What will the "clicked widget" contain ?

bozo6919

Yes ^^
The "clicked widget" is a class TabbedWindow
But It's the same that QWidget.

SGaist

Then you have to either implement an event filter to listen to the mouse press event on all of these widgets, or re-implement the mousePressEvent of your TabbedWindow and emit a signal that specify which region was clicked so you can connect to it and add new widgets appropriately.

bozo6919

I have already connect buttons and event but I don't know how create splitters between two tabbed window correctly

bozo6919

I have something but with some bugs too :/

I have to save a configuration for example that :

How can I do with QSettings for save all these data ? I have this :

    QSettings settings("settings.ini", QSettings::IniFormat);

    settings.setValue("MainWindow/geometry", window->saveGeometry());
    settings.setValue("MainWindow/state", window->saveState());
    settings.setValue("MainWindow/nbrTabbedWindow", tabbed.size());
    for (int i = 0; i < tabbed.size(); i += 1) {
        QString path = "MainWindow/TabbedWindow/" + QString::number(i);

        settings.beginGroup(path.toStdString().c_str());
        settings.setValue("splitter/geometry", tabbed[i]->splitter->saveGeometry());
        settings.setValue("splitter/state", tabbed[i]->splitter->saveState());
        settings.setValue("containerWidget/geometry", tabbed[i]->containerWidget->saveGeometry());
        settings.setValue("nbrWindows", tabbed[i]->windows.size());
        for (int j = 0; j < tabbed[i]->windows.size(); j += 1) {
            QString pathWindowGeo = "/windows" + QString::number(j) + "/geometry";
            QString pathWindowSta = "/windows" + QString::number(j) + "/state";
            QString pathContentTextGeo = "/contents" + QString::number(j) + "/text/geometry";
            QString pathContentTextTxt = "/contents" + QString::number(j) + "/text/text";
            QString pathContentWidgetGeo = "/contents" + QString::number(j) + "/widget/geometry";
            QString pathContentWidgetSty = "/contents" + QString::number(j) + "/widget/styleSheet";

            settings.setValue(pathWindowGeo.toStdString().c_str(), tabbed[i]->windows[j]->saveGeometry());
            settings.setValue(pathWindowSta.toStdString().c_str(), tabbed[i]->windows[j]->saveState());
            settings.setValue(pathContentTextGeo.toStdString().c_str(), tabbed[i]->contents[j]->text->saveGeometry());
            settings.setValue(pathContentTextTxt.toStdString().c_str(), tabbed[i]->contents[j]->text->text());
            settings.setValue(pathContentWidgetGeo.toStdString().c_str(), tabbed[i]->contents[j]->widget->saveGeometry());
            settings.setValue(pathContentWidgetSty.toStdString().c_str(), tabbed[i]->contents[j]->widget->styleSheet());
        }
        settings.endGroup();
    }

But There are not other ways more simple?
And with my method, I cannot for the moment save splitter's children