custom slots / generated ui

[Ceelaz]

Try the signal "triggered()" of your actions instead of "activated()":

#
QObject::connect(actionExit, SIGNAL(triggered()), this, SLOT(exit_slot()));
#
QObject::connect(actionNew_2D_Scene, SIGNAL(triggered()), this, SLOT(addScene2D_slot()));

[mboeni]

Hi all

First of all, thanks for the input! Alas, none of it worked.

I tried something very simple and get exceptions too. So I assume the problem is rooted deeper. I have added a simple widget manipulation to generat0rx.cpp:

#include "generat0rx.h"
#include "qmessagebox.h"
#include <QxtLogger>
#include <QxtBasicFileLoggerEngine>
 
generat0rX::generat0rX(QWidget *parent, Qt::WFlags flags) : QMainWindow(parent, flags)
{
	ui.setupUi(this);
	//QObject::connect(actionExit, SIGNAL(activated()), this, SLOT(exit_slot()));
    //QObject::connect(actionNew_2D_Scene, SIGNAL(activated()), this, SLOT(addScene2D_slot()));
 
	//Start logging
	qxtLog->addLoggerEngine("FileLogger", new QxtBasicFileLoggerEngine("log/g0x.log"));
	qxtLog->info("Huhu INFO log entry!");
 
 
	outputTabTextEdit->append("TEST");
}
 
generat0rX::~generat0rX()
{
 
}
 
void generat0rX::exit_slot()
{
	QMessageBox msgBox;
	msgBox.setText("SLOT: exit_slot triggered");
	msgBox.exec();
 
	//qApp->quit();
	//qApp->exit();
}
 
void generat0rX::addScene2D_slot()
{
	QMessageBox msgBox;
	msgBox.setText("SLOT: addScene2D triggered");
	msgBox.exec();
}

#include "generat0rx.h"
#include "qmessagebox.h"
#include <QxtLogger>
#include <QxtBasicFileLoggerEngine>

generat0rX::generat0rX(QWidget *parent, Qt::WFlags flags) : QMainWindow(parent, flags)
{
	ui.setupUi(this);
	//QObject::connect(actionExit, SIGNAL(activated()), this, SLOT(exit_slot()));
    //QObject::connect(actionNew_2D_Scene, SIGNAL(activated()), this, SLOT(addScene2D_slot()));

	//Start logging
	qxtLog->addLoggerEngine("FileLogger", new QxtBasicFileLoggerEngine("log/g0x.log"));
	qxtLog->info("Huhu INFO log entry!");


	outputTabTextEdit->append("TEST");
}

generat0rX::~generat0rX()
{

}

void generat0rX::exit_slot()
{
	QMessageBox msgBox;
	msgBox.setText("SLOT: exit_slot triggered");
	msgBox.exec();

	//qApp->quit();
	//qApp->exit();
}

void generat0rX::addScene2D_slot()
{
	QMessageBox msgBox;
	msgBox.setText("SLOT: addScene2D triggered");
	msgBox.exec();
}

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This line was added in the constructor:

outputTabTextEdit->append("TEST");

outputTabTextEdit->append("TEST");

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and even THIS raises an exception. There must be something fundamentally wrong with the way I call ui elements...(I am using multiple inheritance btw). Just to make sure you get the full picture, here is generat0rx.h as well:

#ifndef GENERAT0RX_H
#define GENERAT0RX_H
 
#include <QtGui/QMainWindow>
#include "ui_generat0rx.h"
 
class generat0rX : public QMainWindow, private Ui::generat0rXClass
{
	Q_OBJECT
 
public:
	generat0rX(QWidget *parent = 0, Qt::WFlags flags = 0);
	~generat0rX();
 
	public slots: 
		void exit_slot(void);
		void addScene2D_slot(void);
 
private:
	Ui::generat0rXClass ui;
};
#endif // GENERAT0RX_H

#ifndef GENERAT0RX_H
#define GENERAT0RX_H

#include <QtGui/QMainWindow>
#include "ui_generat0rx.h"

class generat0rX : public QMainWindow, private Ui::generat0rXClass
{
	Q_OBJECT

public:
	generat0rX(QWidget *parent = 0, Qt::WFlags flags = 0);
	~generat0rX();
	
	public slots: 
		void exit_slot(void);
		void addScene2D_slot(void);

private:
	Ui::generat0rXClass ui;
};
#endif // GENERAT0RX_H

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This is getting really frustrating :s

Here is the call stack:

>	QtGuid4.dll!QTextEdit::append(const QString & text="TEST")  Line 2617 + 0x7 bytes	C++
 	generat0rX.exe!generat0rX::generat0rX(QWidget * parent=0x00000000, QFlags<enum Qt::WindowType> flags={...})  Line 17 + 0x2e bytes	C++
 	generat0rX.exe!main(int argc=1, char * * argv=0x0079fab0)  Line 17 + 0x1d bytes	C++
 	generat0rX.exe!WinMain(HINSTANCE__ * instance=0x01040000, HINSTANCE__ * prevInstance=0x00000000, char * __formal=0x000a2b9a, int cmdShow=1)  Line 131 + 0x12 bytes	C++
 	generat0rX.exe!__tmainCRTStartup()  Line 547 + 0x2c bytes	C
 	generat0rX.exe!WinMainCRTStartup()  Line 371	C
 	kernel32.dll!76e31194() 	
 	[Frames below may be incorrect and/or missing, no symbols loaded for kernel32.dll]	
 	ntdll.dll!775eb495() 	
 	ntdll.dll!775eb468()

>	QtGuid4.dll!QTextEdit::append(const QString & text="TEST")  Line 2617 + 0x7 bytes	C++
 	generat0rX.exe!generat0rX::generat0rX(QWidget * parent=0x00000000, QFlags<enum Qt::WindowType> flags={...})  Line 17 + 0x2e bytes	C++
 	generat0rX.exe!main(int argc=1, char * * argv=0x0079fab0)  Line 17 + 0x1d bytes	C++
 	generat0rX.exe!WinMain(HINSTANCE__ * instance=0x01040000, HINSTANCE__ * prevInstance=0x00000000, char * __formal=0x000a2b9a, int cmdShow=1)  Line 131 + 0x12 bytes	C++
 	generat0rX.exe!__tmainCRTStartup()  Line 547 + 0x2c bytes	C
 	generat0rX.exe!WinMainCRTStartup()  Line 371	C
 	kernel32.dll!76e31194() 	
 	[Frames below may be incorrect and/or missing, no symbols loaded for kernel32.dll]	
 	ntdll.dll!775eb495() 	
 	ntdll.dll!775eb468()

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[Lykurg]

You are mixing the different approaches of using ui files: See "Using a Designer UI File in Your Application" at the docs.
Use

setupUi(this);

setupUi(this);

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instead of

ui.setupUi(this);

ui.setupUi(this);

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and rerun qmake.

[mboeni]

Hi Lykurg

I have read the article you mentioned, but missed the part about setupUI. Changing that as you proposed has solved my main issues. Thanks!

Cheers,
Michael

[mboeni]

For all other newbies out there, I have put together a little tutorial on how to master the first few steps with Qt4 and MS Visual Studio using the Add-In.

You find the tutorial here: Beginners Tutorial Qt 4.7 with Visual Studio and the Qt Add-In

Please comment or PM me in the blog if you find any errors.

All the best,
Michael