QWizard Next, Back

xboxnissan

Hi, I've been seeking the web a lot lately, trying to find how to disable the Next and Back button.
(Check out by yourself @Stack Overflow and many other forums):

Why would I do that? Look at Adding a printer in Windows 7

!http://img.techtalkz.com/DeviceAndPrinter_Win7_8.jpg(Adding printer dialog)!

I'm doing the exact same thing for my current project, and I can't produce that GUI.

button(QWizard::NextButton)->setEnabled(false); // doesn't work

Reimplementing isComplete: How? I have no fields at all, just two commandlinks.

So how disable-ing the next button?

Thank You!

andre

So, why don't you just make isComplete return false then?

xboxnissan

BEcause I need the next enabled afterward. If you can do the same think as windows did (make an intro, a page like illustrated above, and two separated pages and let me know how !) thanks for the quick reply!

rokemoon

In "QWizard":http://doc.qt.nokia.com/latest/qwizard.html you add "QWizardPage":http://doc.qt.nokia.com/latest/qwizardpage.html, so you can inherit QWidgetPage and in this class implement "isComplete()":http://doc.qt.nokia.com/latest/qwizardpage.html#isComplete
Have a look to "this page":http://doc.qt.nokia.com/qq/qq22-qwizard.html#validatebeforeitstoolate also.

andre

OK, only you know what changes once a user has pressed one of those buttons, so only you know what should change.

It seems to me, that you basically want to take another route through your wizard based on which buttons is pressed, right? If so, then I think that is fairly easy to achieve.

Let your command button set a value that informs you of which one was pressed. Emit the completeChanged() signal, and let isComplete() return true if that value is non-valid. Then, you trigger the next action programatically, by adding a signal moveNext to your QWizardPage subclass, and connect that with the QWizard next() slot.

xboxnissan

How to implement the completeChanged()?

andre

No need to implement it, just do:
@
emit completeChanged();
@

to notify connected objects (like QWizard) that the status (may) have changed. You never implement a slot; Qt does that for you.

xboxnissan

Here are my current 2 button connect:

(PS: Another Specialist recommanded me to do so, and it works)
@QWizardPage* wizard_newdb::PageSelect()
{
...
connect(linkImp, SIGNAL(clicked()), this, SLOT(gotoImport()));
connect(linkNew, SIGNAL(clicked()), this, SLOT(gotoCreate()));
...
}

void wizard_newdb::gotoImport()
{
removePage(Page_AfterSelection1);
...
addPage(PageRecover());
...
next();
}

void wizard_newdb::gotoCreate()
{
removePage(Page_AfterSelection1);
...
addPage(PageCreate());
...
next();
}@

So, I do the following?
@connect(linkNew, SIGNAL(clicked()), this, SLOT(emit completeChange()));@

Thanks

xboxnissan

[quote author="Andre" date="1320941333"]No need to implement it, just do:
@
emit completeChanged();
@

to notify connected objects (like QWizard) that the status (may) have changed. You never implement a slot; Qt does that for you.[/quote]

Finally got it, after LOT of thinking:

I did object only for the selectPage
did a public variable called bool isDecided in my Parrent QWizard.
When either buttons are pressed, parent->isDecided = true; emit completedChanged() like the following:
@void SelectPage::gotoCreate()
{
parentW->isNew = true;
emit completeChanged();
parentW->gotoCreate();
}@
Here is my code (partial)

@NewDB::NewDB(QWidget *parent)
: QWizard(parent)
{
setPage(Page_Intro, new IntroPage(this));
setPage(Page_Select, new SelectPage(this));
setPage(Page_After1, BlankPage());
}

void NewDB::gotoCreate()
{
removePage(Page_After1);
addPage(CreatePage());
next();
}

SelectPage::SelectPage(NewDB *parent)
: QWizardPage(parent)
{
parentW = parent; // Object NewDB
...
parentW->isNew = false;
// Button Actions
connect(linkNew, SIGNAL(clicked()), this, SLOT(gotoCreate()));
...
}

void SelectPage::gotoCreate()
{
parentW->isNew = true;
emit completeChanged();
parentW->gotoCreate();
}

bool SelectPage::isComplete () const {
if(parentW->isNew == true)
{
return true;
}
else
{
return false;
}
}@

Thanks a lot for the hint!