Custum signal in QDialog does not launch a slot in another class

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Thank you raven-worx, I have checked if the connect statement works and it does (the bool is 1) and I ve printed something in the saveTableValue slot and it works also....

raven-worx

when the connect() returns true the connection is fine and everything will work.
So there must be something else... the posted code looks good.

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exactely I cant find out what's wrong. I tried to emit the same signal in B class and connected in the A class, and it works! the only difference I see is that the case that doesn't work is a QDialog!! what's wrong with that?!

raven-worx

should also work. even if you call QDialog::exec() to show it.
Did you try a full rebuild of your project?

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What do you mean with "even if you call QDialog::exec() to show it."?

yes I tried twice to rebuild...nothing

raven-worx

[quote author="valeSimu" date="1422369443"]What do you mean with "even if you call QDialog::exec() to show it."?[/quote]

because QDialog::exec() opens a new event-loop. Nevermind.

I don't have any more hints for you sry.

andreyc

Could you show where do you show or exec profDialog.
Is profHullDialog related to profDialog?

andreyc

Another question.
How many times do you call Geometry_UI::update()?
In current implementation you create new table on each update.

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in class B.cpp show the profDialog in thi way

@connect(profBtn, SIGNAL(clicked()), profDialog, SLOT(show()));@

and yes proHullDialog and profDialog are the same, I corrected it, thx
yes the table is created for every element it finds in a list, for this reason update is called many times

andreyc

The connect in MainWindow ctor uses a Geomentry_UI::profDialog pointer allocated in Geometry_UI ctor.
In Geometry_UI::update() you lose that pointer and allocate another and you use that new pointer to connect with a table widget.
You need to rethink the connections and allocations.

@
Main_newUI::Main_newUI(QString pathPj, QWidget *parent)
: QMainWindow(parent)
{
geometryDocks = new Geometry_UI(...); // Creates a pointer to profDialog
profileDialog = geometryDocks->profDialog;
connect(profileDialog, SIGNAL(load()), this, SLOT(reloadIfGeometryChanged())); // Uses that pointer to make a connection.
}

void Geometry_UI::update()
{
QTableWidget* profileTable = new QTableWidget(profDialog);
profDialog = new ShapeDialog(profBtn, profileTable); // The pointer previously allocated in ctor is lost here.
connect(profileTable, SIGNAL(cellChanged(int,int)), profDialog, SLOT(saveTableValue(int,int))); // profileTable is connected to new profDialog that is not connected with MainWindow.
}

@