QRadioButtonTableItem like QCheckTableItem

[sumsin]

Actually I want to implement a QRadioButton as a QTableItem (like QCheckTableItem).
I create the radio button is QTableItem’s createEditor() function.

But my problems are:
1. How do I handle signal and slots, since QTableItem is inherited from Qt so I cant define signal and slots in it. What should be the approach?
2. When I try to show the radio buttons on 3*3 table onle one radio button appear at 0,0 position and other appears when I click any othe cell. How do I show them?

thanks.

[zlatko]

Answer 1 : use QRadioButton pointer(declare it as member of your QTableItem class) , and then operate with it ;
Answer 2 : show your code ;

[sumsin]

sradiobuttontableitem.h

#ifndef _S_RADIO_BUTTON_TABLE_ITEM_H_
#define _S_RADIO_BUTTON_TABLE_ITEM_H_
 
#include <qtable.h>
 
class SRadioButtonTableItem;
 
class STable : public QTable
{
	Q_OBJECT
public:    
    STable(int row, int col, QWidget *parent = 0, const char *name = 0);
    ~STable();
 
	SRadioButtonTableItem *item(int, int);
public slots:
	void doValueChanged();
	void clicked(int, int);
};
 
class SRadioButtonTableItem : public QTableItem
{
	public:
		SRadioButtonTableItem(STable *table, const QString &text);
		virtual ~SRadioButtonTableItem();
 
		bool isChecked() const { return m_bChecked; }
		bool isBold() const { return m_bBold; }
 
		void setChecked(bool check) { m_bChecked = check; }
		void setBold (bool boldToggle) { m_bBold = boldToggle; }
 
	protected:
		virtual QWidget *createEditor() const;   
		virtual void setContentFromEditor ( QWidget * w );
		virtual void paint (QPainter *p, const QColorGroup &cg, const QRect &cr, bool selected);
 
	private:
		const QString m_string;
		bool m_bBold;
		bool m_bChecked;
};
 
#endif

#ifndef _S_RADIO_BUTTON_TABLE_ITEM_H_
#define _S_RADIO_BUTTON_TABLE_ITEM_H_

#include <qtable.h>

class SRadioButtonTableItem;

class STable : public QTable
{
	Q_OBJECT
public:    
    STable(int row, int col, QWidget *parent = 0, const char *name = 0);
    ~STable();

	SRadioButtonTableItem *item(int, int);
public slots:
	void doValueChanged();
	void clicked(int, int);
};

class SRadioButtonTableItem : public QTableItem
{
	public:
		SRadioButtonTableItem(STable *table, const QString &text);
		virtual ~SRadioButtonTableItem();
		
		bool isChecked() const { return m_bChecked; }
		bool isBold() const { return m_bBold; }

		void setChecked(bool check) { m_bChecked = check; }
		void setBold (bool boldToggle) { m_bBold = boldToggle; }
		
	protected:
		virtual QWidget *createEditor() const;   
		virtual void setContentFromEditor ( QWidget * w );
		virtual void paint (QPainter *p, const QColorGroup &cg, const QRect &cr, bool selected);

	private:
		const QString m_string;
		bool m_bBold;
		bool m_bChecked;
};

#endif

To copy to clipboard, switch view to plain text mode 

sradiobuttontableitem.cpp

#include <qradiobutton.h>
#include <qmessagebox.h>
#include <qcolor.h>
#include <qpainter.h>
#include <assert.h>
 
#include "sradiobuttontableitem.h"
 
STable::STable(int row, int col, QWidget *parent, const char *name)
    : QTable(row, col, parent, name) {
 
		QObject::connect(this, SIGNAL(valueChanged(int, int)), this, SLOT(clicked(int, int)));
}
 
void STable::clicked(int row, int col)
{
	if(item(row, col)->isChecked()) {
		QMessageBox::information(this, 0, "TRUE");
	} else {
		QMessageBox::information(this, 0, "FLASE");
	}
}
 
SRadioButtonTableItem* STable::item(int row, int col)
{
	SRadioButtonTableItem *ti = (SRadioButtonTableItem *)QTable::item(row,col);
	return ti;
}
 
STable::~STable() {
}
 
void STable::doValueChanged() {
	emit valueChanged(currentRow(), currentColumn());
}
 
SRadioButtonTableItem::SRadioButtonTableItem(STable *table, const QString &text)
	: QTableItem( table, QTableItem::WhenCurrent, text ),
	m_string(text),
	m_bBold(FALSE),
	m_bChecked(FALSE) {
   	setReplaceable( false );
}
 
SRadioButtonTableItem::~SRadioButtonTableItem() {
}
 
QWidget* SRadioButtonTableItem::createEditor() const {
	QWidget* editorWidget;	
	STable *_table = static_cast<STable*>(table());
 
	editorWidget = new QRadioButton(table()->viewport() );
 
	((QRadioButton*)editorWidget)->setText( text() );
 
	QObject::connect(editorWidget, SIGNAL(clicked()), _table, SLOT(doValueChanged()));
	return editorWidget;
}
 
void SRadioButtonTableItem::setContentFromEditor ( QWidget * w )
{
	if ( w ) 
	{
		((QRadioButton*)w)->show();
		if(((QRadioButton*)w)->isChecked()) {
			m_bChecked = TRUE;
		} else {
			m_bChecked = FALSE;
		}
	}
}
 
void SRadioButtonTableItem::paint (QPainter *p, const QColorGroup &cg, const QRect &cr, bool selected)
{
	QFont f = p->font();
 
	f.setBold (m_bBold);
	p->setFont (f);
 
	QTableItem::paint (p, cg, cr, selected);
}

#include <qradiobutton.h>
#include <qmessagebox.h>
#include <qcolor.h>
#include <qpainter.h>
#include <assert.h>

#include "sradiobuttontableitem.h"

STable::STable(int row, int col, QWidget *parent, const char *name)
    : QTable(row, col, parent, name) {

		QObject::connect(this, SIGNAL(valueChanged(int, int)), this, SLOT(clicked(int, int)));
}

void STable::clicked(int row, int col)
{
	if(item(row, col)->isChecked()) {
		QMessageBox::information(this, 0, "TRUE");
	} else {
		QMessageBox::information(this, 0, "FLASE");
	}
}

SRadioButtonTableItem* STable::item(int row, int col)
{
	SRadioButtonTableItem *ti = (SRadioButtonTableItem *)QTable::item(row,col);
	return ti;
}

STable::~STable() {
}

void STable::doValueChanged() {
	emit valueChanged(currentRow(), currentColumn());
}

SRadioButtonTableItem::SRadioButtonTableItem(STable *table, const QString &text)
	: QTableItem( table, QTableItem::WhenCurrent, text ),
	m_string(text),
	m_bBold(FALSE),
	m_bChecked(FALSE) {
   	setReplaceable( false );
}

SRadioButtonTableItem::~SRadioButtonTableItem() {
}

QWidget* SRadioButtonTableItem::createEditor() const {
	QWidget* editorWidget;	
	STable *_table = static_cast<STable*>(table());
		
	editorWidget = new QRadioButton(table()->viewport() );

	((QRadioButton*)editorWidget)->setText( text() );

	QObject::connect(editorWidget, SIGNAL(clicked()), _table, SLOT(doValueChanged()));
	return editorWidget;
}

void SRadioButtonTableItem::setContentFromEditor ( QWidget * w )
{
	if ( w ) 
	{
		((QRadioButton*)w)->show();
		if(((QRadioButton*)w)->isChecked()) {
			m_bChecked = TRUE;
		} else {
			m_bChecked = FALSE;
		}
	}
}
 
void SRadioButtonTableItem::paint (QPainter *p, const QColorGroup &cg, const QRect &cr, bool selected)
{
	QFont f = p->font();

	f.setBold (m_bBold);
	p->setFont (f);

	QTableItem::paint (p, cg, cr, selected);
}

To copy to clipboard, switch view to plain text mode 

main.cpp

#include <qapplication.h>
#include <qstring.h>
#include <qtable.h>
 
#include "sradiobuttontableitem.h"
 
int main(int argc, char **argv)
{
	QApplication qApp(argc, argv);
 
	STable *table = new STable(3, 3);
 
	for(int row = 0; row < 3; ++row) {
		for(int col = 0; col < 3; ++col) {
			QString str = "TEST";
            table->setItem(row, col, new SRadioButtonTableItem(table, str));
		}
	}
 
	qApp.setMainWidget(table);
 
	table->show();
 
 
	qApp.connect(&qApp, SIGNAL(lastWindowClosed()), &qApp, SLOT(quit()));
 
	return qApp.exec();
}

#include <qapplication.h>
#include <qstring.h>
#include <qtable.h>

#include "sradiobuttontableitem.h"

int main(int argc, char **argv)
{
	QApplication qApp(argc, argv);
	
	STable *table = new STable(3, 3);
	
	for(int row = 0; row < 3; ++row) {
		for(int col = 0; col < 3; ++col) {
			QString str = "TEST";
            table->setItem(row, col, new SRadioButtonTableItem(table, str));
		}
	}
	
	qApp.setMainWidget(table);
	
	table->show();
	
	
	qApp.connect(&qApp, SIGNAL(lastWindowClosed()), &qApp, SLOT(quit()));
	
	return qApp.exec();
}

To copy to clipboard, switch view to plain text mode 

[sumsin]

Hi

Now I have implement the communication functionality, but now my problem is that my radio button does not appear always as I have used the EditType is WhenCurrent.

I used this edit type because QCheckTableItem use this edit type.

If I use always edit type the radio button appear always but my application crashes when I click on the radio botton.

I want my radio button warks exactly as the QCheckBoxTableItem.

thanks.

[sumsin]

Can anybody help me out for issue!