Subclassing QToolBox

[whitefurrows]

Hello,

i want to expand more than one page form a QToolBox. To do that i try to overwrite QToolBox::setCurrentIndex(int index). It works, but the problem is to use the following code form the original ToolBox within my subclass:

Q_D(QToolBox);
    QToolBoxPrivate::Page *c = d->page(index);
    if (!c || d->currentPage == c)
        return;

Q_D(QToolBox);
    QToolBoxPrivate::Page *c = d->page(index);
    if (!c || d->currentPage == c)
        return;

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The compiler output is: incomplete type 'QToolBoxPrivate' used in nested name specifier...

I don't understand how can i use the D-Pointer to access d->currentPage. Can you help me please?

[ChrisW67]

Your subclass does not have access to either the private d pointer, or the private implementation class. They are private for a good reason. Further, setCurrentIndex() is not virtual and clearly not designed to be replaced.

I do not understand what you mean by "i want to expand more than one page form a QToolBox" so I have no suggestion as to how to do this.

[whitefurrows]

I have attached a image to explain what i mean
toolbox.png
You understand and can help me?

[Spitfire]

Create proper widget from a scratch as I don't think there's such widget available in Qt.

It should be fairly simple, just bunch of buttons in a vertical layout toggling widgets visibility on click.

[whitefurrows]

Thank you. Now have i create my own control that toggling widgets visibility on click. After i do that i have found a great example.

[ChrisW67]

I am intrigued how this should work from a user's perspective. In your screenshot above you have two panels visible. When I click on Page 3 what should happen? Is the number of open panels limited to two? What happens if the panels + buttons will no longer fit in the available height?

[d_stranz]

I am intrigued how this should work from a user's perspective. In your screenshot above you have two panels visible. When I click on Page 3 what should happen? Is the number of open panels limited to two? What happens if the panels + buttons will no longer fit in the available height?

If I were to implement such a thing, I would probably add a vertical scrollbar such that when the number of open panels exceeded the available vertical space, the contents could be scrolled. However, I would probably find the UI interaction annoying.

[whitefurrows]

When I click on Page 3 what should happen?

Page 3 is visible too.

Is the number of open panels limited to two?

No, every page can be visible.

What happens if the panels + buttons will no longer fit in the available height?

The contents could be scrolled.

If you change setCurrentIndex() from the ToolBox example, the ToolBox can do all these things

void ToolBox::setCurrentIndex(int index)
{
    Page *c = page(index);
    if (!c){
        return;
    }
 
    if (currentPage) {
        currentPage->button->setSelected(false);
    }
    c->button->setSelected(true);
 
    if( c->sv->isVisible() ){
        c->sv->hide();
    }else{
        c->sv->show();
    }
 
    currentPage = c;
 
    updateTabs();
    emit currentChanged(index);
}

void ToolBox::setCurrentIndex(int index)
{
    Page *c = page(index);
    if (!c){
        return;
    }

    if (currentPage) {
        currentPage->button->setSelected(false);
    }
    c->button->setSelected(true);

    if( c->sv->isVisible() ){
        c->sv->hide();
    }else{
        c->sv->show();
    }

    currentPage = c;

    updateTabs();
    emit currentChanged(index);
}

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Why should be the UI interaction annoying?

[Spitfire]

QtDesigner uses similar widget to show available components and it's working fine.
I can't see any problem with usability.

[wysota]

If I were to implement such a thing, I would probably add a vertical scrollbar such that when the number of open panels exceeded the available vertical space, the contents could be scrolled. However, I would probably find the UI interaction annoying.

I would just use QwwTaskPanel

QtDesigner uses similar widget to show available components and it's working fine.
I can't see any problem with usability.

Designer uses a regular tree view. No need to reinvent the wheel.

[gele]

Can someone share code how can i make the QToolbox with multiple openen widgets?

[wysota]

The toolbox, by definition, has only one widget open.

[Dariusz]

Page 3 is visible too.


No, every page can be visible.


The contents could be scrolled.

If you change setCurrentIndex() from the ToolBox example, the ToolBox can do all these things

void ToolBox::setCurrentIndex(int index)
{
    Page *c = page(index);
    if (!c){
        return;
    }
 
    if (currentPage) {
        currentPage->button->setSelected(false);
    }
    c->button->setSelected(true);
 
    if( c->sv->isVisible() ){
        c->sv->hide();
    }else{
        c->sv->show();
    }
 
    currentPage = c;
 
    updateTabs();
    emit currentChanged(index);
}

void ToolBox::setCurrentIndex(int index)
{
    Page *c = page(index);
    if (!c){
        return;
    }

    if (currentPage) {
        currentPage->button->setSelected(false);
    }
    c->button->setSelected(true);

    if( c->sv->isVisible() ){
        c->sv->hide();
    }else{
        c->sv->show();
    }

    currentPage = c;

    updateTabs();
    emit currentChanged(index);
}

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Why should be the UI interaction annoying?

Hey

Sorry for digging it up but would any1 mind converting it to PyQt4/5 maybe ? Tried to do it myself but failed badly :- (

Regards

Dariusz