my slots don't appear in the signal slot editor

[squidge]

slots will be grayed out if the slot is incompatible with the signal. For example, a slot expecting an int will not accept a signal that emits a char *

All connect statements generated by designer will be present in the header file and executed when setupui is called.

[landonmkelsey]

OK but why do these slots show up as choices in the Qt C++ signal slot tab below???

and with "my" connect statement tha works, how do I fix the other 3

for subtract, mutiply and divide

connect(ui.pushButtonAdd,SIGNAL(clicked()),this,SL OT(addClicked()));

QAbstratButton has
Signals

*
void clicked ( bool checked = false ) argument optional
*
void pressed ()
*
void released ()
*
void toggled ( bool checked )

*
1 signal inherited from QWidget
*
1 signal inherited from QObject

My slots are all void void

[squidge]

Your slots shouldn't be all void void. If there are no parameters, the parameter list should be empty, otherwise the slots will be grayed out in designer.

If you create a slot in designer and name it "foo()", then it will allow you to assign the clicked() event to that slot using the "Edit signals/slots" editor (ie, you drag a line from the button to whatever)

If you are still having problems, post your project.

[landonmkelsey]

I have tar'ed and gzip'ed the workspace (Eclipse) for the project attached

If you don't have Eclipse with Qt designer plugin, I can export the files and "retar"

[squidge]

You seem to have forgotten to attach the project.

Secondly, have you tried to open the .ui file in QtDesigner itself rather than the Eclipse plugin to make sure it isn't a bug in the plugin?

[landonmkelsey]

I exported necessary files via tar and gzip.

I removed *.o and executable

-rw-rw-r--. 1 qt4 qt4 1225203 2009-12-02 19:04 trycalc.tar.gz
too big to attach.

Do you have an email I could send it to?

I will try using the designer alone to look at what is going on!

where does one say thanks!

this time I clicked on "edit" and was allowed to enter the 4 methods/slots.

However when I dragged the red line out of a pushbutton, the choices were grayed out.

This looks like a bug or missing feature.

Who wants to limit slots to base class slots?

Again, the C++ signal slot editor tab near the bottom shows and allows selection of user slots.

Hitting F4 or the editor that pops up from the icon at the top doesn't allow

[Tanuki-no Torigava]

may be this:

clicked(bool c = false)

clicked(bool c = false)

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? void is actually not equal to default argument.

[wysota]

Please edit your posts if you have anything to add instead of replying to yourself.

[landonmkelsey]

wysota:
just curious...are you a Nokia (formerly Trolltech) employee??

Tanuli-no:
thanks! clicked(bool c = false) occurred to me even though it is really unnecessary.

Come to think of it,
he whole original parameter spec should really be used anyway!

Assuming that is correct (I think it is) why are the user slots appearing at the bottom dialog (tab) and not at the top dialog (F4/icon)?
The following compiled and ran but with warning:
Object::connect: No such signal QPushButton::clicked(bool c) in trycalc.cpp:7
Object::connect: (sender name: 'pushButtonAdd')
Object::connect: (receiver name: 'trycalcClass')

#ifndef TRYCALC_H
#define TRYCALC_H
 
#include <QtGui/QWidget>
#include "ui_trycalc.h"
 
class trycalc : public QWidget
{
    Q_OBJECT
 
public:
    trycalc(QWidget *parent = 0);
    ~trycalc();
 
private:
    Ui::trycalcClass ui;
public slots:
  void addClicked(bool c = false);
  void subClicked(bool c = false);
  void mulClicked(bool c = false);
  void divClicked(bool c = false);
 
};
 
#endif // TRYCALC_H
 
 
#include "trycalc.h"
#include <QMessageBox>
trycalc::trycalc(QWidget *parent)
    : QWidget(parent)
{
	ui.setupUi(this);
	connect(ui.pushButtonAdd,SIGNAL(clicked(bool c)),this,SLOT(addClicked(bool c;
}
 
trycalc::~trycalc()
{
 
}
//
void trycalc::addClicked(bool c)
{
 
        QString qstring1 = ui.lineEdit->text();
        QString qstring2 = ui.lineEdit_2->text();
 
        bool ok1 = true;
        bool ok2 = true;
        float f1 = qstring1.toFloat(&ok1);
        float f2 = qstring2.toFloat(&ok2);
        if(        qstring1.length() == 0
                || qstring2.length() == 0
                || !ok1
                || !ok2)
        {
            QMessageBox mb("Adder",
                           "missing or bad entry",
                           QMessageBox::Warning,
                           QMessageBox::Ok ,
                           QMessageBox::NoButton ,
                           QMessageBox::NoButton);
                mb.exec();
                ui.lineEdit->clear();
                ui.lineEdit_2->clear();
                ui.lineEdit_3->clear();
                return;
        }
        float f3 = f1 + f2;
        QString qstring3;
        qstring3.setNum(f3);
        ui.lineEdit_3->setText(qstring3);
}
void trycalc::subClicked(bool c)
{
        QString qstring1 = ui.lineEdit->text();
        QString qstring2 = ui.lineEdit_2->text();
 
        bool ok1 = true;
        bool ok2 = true;
        float f1 = qstring1.toFloat(&ok1);
        float f2 = qstring2.toFloat(&ok2);
        if(        qstring1.length() == 0
                || qstring2.length() == 0
                || !ok1
                || !ok2)
        {
            QMessageBox mb("Adder",
                           "missing or bad entry",
                           QMessageBox::Warning,
                           QMessageBox::Ok ,
                           QMessageBox::NoButton ,
                           QMessageBox::NoButton);
                mb.exec();
                ui.lineEdit->clear();
                ui.lineEdit_2->clear();
                ui.lineEdit_3->clear();
                return;
        }
        float f3 = f1 - f2;
        QString qstring3;
        qstring3.setNum(f3);
        ui.lineEdit_3->setText(qstring3);
}
void trycalc::mulClicked(bool c)
{
 
        QString qstring1 = ui.lineEdit->text();
        QString qstring2 = ui.lineEdit_2->text();
 
        bool ok1 = true;
        bool ok2 = true;
        float f1 = qstring1.toFloat(&ok1);
        float f2 = qstring2.toFloat(&ok2);
        if(        qstring1.length() == 0
                || qstring2.length() == 0
                || !ok1
                || !ok2)
        {
            QMessageBox mb("Adder",
                           "missing or bad entry",
                           QMessageBox::Warning,
                           QMessageBox::Ok ,
                           QMessageBox::NoButton ,
                           QMessageBox::NoButton);
                mb.exec();
                ui.lineEdit->clear();
                ui.lineEdit_2->clear();
                ui.lineEdit_3->clear();
                return;
        }
        float f3 = f1 * f2;
        QString qstring3;
        qstring3.setNum(f3);
        ui.lineEdit_3->setText(qstring3);
}
void trycalc::divClicked(bool c)
{
 
        QString qstring1 = ui.lineEdit->text();
        QString qstring2 = ui.lineEdit_2->text();
 
        bool ok1 = true;
        bool ok2 = true;
        float f1 = qstring1.toFloat(&ok1);
        float f2 = qstring2.toFloat(&ok2);
        if(        qstring1.length() == 0
                || qstring2.length() == 0
                || !ok1
                || !ok2
                || f2==0.)
        {
            QMessageBox mb("Adder",
                           "missing or bad entry",
                           QMessageBox::Warning,
                           QMessageBox::Ok ,
                           QMessageBox::NoButton ,
                           QMessageBox::NoButton);
                mb.exec();
                ui.lineEdit->clear();
                ui.lineEdit_2->clear();
                ui.lineEdit_3->clear();
                return;
        }
        float f3;
        if (f2 != 0.) f3 = f1 / f2;
        QString qstring3;
        qstring3.setNum(f3);
        ui.lineEdit_3->setText(qstring3);
}

#ifndef TRYCALC_H
#define TRYCALC_H

#include <QtGui/QWidget>
#include "ui_trycalc.h"

class trycalc : public QWidget
{
    Q_OBJECT

public:
    trycalc(QWidget *parent = 0);
    ~trycalc();

private:
    Ui::trycalcClass ui;
public slots:
  void addClicked(bool c = false);
  void subClicked(bool c = false);
  void mulClicked(bool c = false);
  void divClicked(bool c = false);

};

#endif // TRYCALC_H


#include "trycalc.h"
#include <QMessageBox>
trycalc::trycalc(QWidget *parent)
    : QWidget(parent)
{
	ui.setupUi(this);
	connect(ui.pushButtonAdd,SIGNAL(clicked(bool c)),this,SLOT(addClicked(bool c;
}

trycalc::~trycalc()
{

}
//
void trycalc::addClicked(bool c)
{

        QString qstring1 = ui.lineEdit->text();
        QString qstring2 = ui.lineEdit_2->text();

        bool ok1 = true;
        bool ok2 = true;
        float f1 = qstring1.toFloat(&ok1);
        float f2 = qstring2.toFloat(&ok2);
        if(        qstring1.length() == 0
                || qstring2.length() == 0
                || !ok1
                || !ok2)
        {
            QMessageBox mb("Adder",
                           "missing or bad entry",
                           QMessageBox::Warning,
                           QMessageBox::Ok ,
                           QMessageBox::NoButton ,
                           QMessageBox::NoButton);
                mb.exec();
                ui.lineEdit->clear();
                ui.lineEdit_2->clear();
                ui.lineEdit_3->clear();
                return;
        }
        float f3 = f1 + f2;
        QString qstring3;
        qstring3.setNum(f3);
        ui.lineEdit_3->setText(qstring3);
}
void trycalc::subClicked(bool c)
{
        QString qstring1 = ui.lineEdit->text();
        QString qstring2 = ui.lineEdit_2->text();

        bool ok1 = true;
        bool ok2 = true;
        float f1 = qstring1.toFloat(&ok1);
        float f2 = qstring2.toFloat(&ok2);
        if(        qstring1.length() == 0
                || qstring2.length() == 0
                || !ok1
                || !ok2)
        {
            QMessageBox mb("Adder",
                           "missing or bad entry",
                           QMessageBox::Warning,
                           QMessageBox::Ok ,
                           QMessageBox::NoButton ,
                           QMessageBox::NoButton);
                mb.exec();
                ui.lineEdit->clear();
                ui.lineEdit_2->clear();
                ui.lineEdit_3->clear();
                return;
        }
        float f3 = f1 - f2;
        QString qstring3;
        qstring3.setNum(f3);
        ui.lineEdit_3->setText(qstring3);
}
void trycalc::mulClicked(bool c)
{

        QString qstring1 = ui.lineEdit->text();
        QString qstring2 = ui.lineEdit_2->text();

        bool ok1 = true;
        bool ok2 = true;
        float f1 = qstring1.toFloat(&ok1);
        float f2 = qstring2.toFloat(&ok2);
        if(        qstring1.length() == 0
                || qstring2.length() == 0
                || !ok1
                || !ok2)
        {
            QMessageBox mb("Adder",
                           "missing or bad entry",
                           QMessageBox::Warning,
                           QMessageBox::Ok ,
                           QMessageBox::NoButton ,
                           QMessageBox::NoButton);
                mb.exec();
                ui.lineEdit->clear();
                ui.lineEdit_2->clear();
                ui.lineEdit_3->clear();
                return;
        }
        float f3 = f1 * f2;
        QString qstring3;
        qstring3.setNum(f3);
        ui.lineEdit_3->setText(qstring3);
}
void trycalc::divClicked(bool c)
{

        QString qstring1 = ui.lineEdit->text();
        QString qstring2 = ui.lineEdit_2->text();

        bool ok1 = true;
        bool ok2 = true;
        float f1 = qstring1.toFloat(&ok1);
        float f2 = qstring2.toFloat(&ok2);
        if(        qstring1.length() == 0
                || qstring2.length() == 0
                || !ok1
                || !ok2
                || f2==0.)
        {
            QMessageBox mb("Adder",
                           "missing or bad entry",
                           QMessageBox::Warning,
                           QMessageBox::Ok ,
                           QMessageBox::NoButton ,
                           QMessageBox::NoButton);
                mb.exec();
                ui.lineEdit->clear();
                ui.lineEdit_2->clear();
                ui.lineEdit_3->clear();
                return;
        }
        float f3;
        if (f2 != 0.) f3 = f1 / f2;
        QString qstring3;
        qstring3.setNum(f3);
        ui.lineEdit_3->setText(qstring3);
}

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[wysota]

wysota:
just curious...are you a Nokia (formerly Trolltech) employee??

No, I'm not.

[squidge]

What is this?

void addClicked(bool c = false);
  void subClicked(bool c = false);
  void mulClicked(bool c = false);
  void divClicked(bool c = false);

void addClicked(bool c = false);
  void subClicked(bool c = false);
  void mulClicked(bool c = false);
  void divClicked(bool c = false);

To copy to clipboard, switch view to plain text mode 

If you don't care about the state, it should be:

void addClicked();
  void subClicked();
  void mulClicked();
  void divClicked();

void addClicked();
  void subClicked();
  void mulClicked();
  void divClicked();

To copy to clipboard, switch view to plain text mode 

As mentioned previously.

[landonmkelsey]

somebody recommended a fix and I was giving it a shot

Your recommendation describes my original code.

My original code compiled and ran without warning/error.

[squidge]

Attach your .ui file