Problem with custom widget

[jnana]

Hi ,

I am trying to customized QTableWidget Item in Qt-4.1 version(linux). It is compiling
properly and creating Libraries. When instatiating the plugin widgets instead of my class object, it is creating object of base class(QTableWidget). I am not getting the error position. So asking for ur help. Attaching the code.

//spreadsheet.h

#ifndef SPREADSHEET
#define SPREADSHEET
#include <QApplication>
#include <Qt3Support>
#include <QTableWidget>
#include <Q3PopupMenu>
#include <QAction>
#include <QColorDialog>

class SpreadSheet : public QTableWidget {
//Q_OBJECT
public :
SpreadSheet (QWidget* a_parent = 0);
SpreadSheet (int a_row = 1, int a_column = 4,
QWidget *a_parent = 0);
void CreatePopupMenu();
void ChooseColor ();
void ExecPopupMenu(int, int);
private:
unsigned row;
unsigned column;
Q3PopupMenu *menu;
QAction *colorBackAct;
QAction *colorTextAct;
QColor color;
};

#endif

//spreadsheet.cpp
#include "spreadsheet.h"

SpreadSheet :: SpreadSheet (QWidget* a_parent)
:QTableWidget(a_parent)
{
row = 0;
column = 0;
CreatePopupMenu();
}

SpreadSheet :: SpreadSheet (int a_row, int a_column, QWidget* a_parent)
: QTableWidget(a_row, a_column, a_parent)
{
row = a_row;
column = a_column;
CreatePopupMenu();
}

void
SpreadSheet :: CreatePopupMenu()
{
connect(this, SIGNAL(cellDoubleClicked(int, int)),
this, SLOT(ExecPopupMenu(int, int)));

menu = new Q3PopupMenu(this);
menu->addAction("Cell Background color ... ", this, SLOT(ChooseColor()));
menu->addAction("Cell Text Color ...", this, SLOT(ChooseColor()));
}

void
SpreadSheet :: ChooseColor()
{
color = QColorDialog::getColor();
}


void
SpreadSheet :: ExecPopupMenu(int a_row, int a_column)
{
menu->exec();
// QWidget* widget = cellWidget(a_row, a_column);
QTableWidgetItem *item = takeItem(a_row, a_column);
item->setBackgroundColor (color);
}

//customwidgetplugin.h
#ifndef CUSTOMWIDGETPLUGIN_H
#define CUSTOMWIDGETPLUGIN_H

#include <QDesignerCustomWidgetInterface>

class SpreaSheetPlugin : public QObject, public QDesignerCustomWidgetInterface
{
Q_OBJECT
Q_INTERFACES(QDesignerCustomWidgetInterface)

public:
SpreaSheetPlugin(QObject *parent = 0);

bool isContainer() const;
bool isInitialized() const;
QIcon icon() const;
QString codeTemplate() const;
QString domXml() const;
QString group() const;
QString includeFile() const;
QString name() const;
QString toolTip() const;
QString whatsThis() const;
QWidget *createWidget(QWidget *parent);
void initialize(QDesignerFormEditorInterface *core);

private:
bool initialized;
};

#endif

//customwidgetplugin.cpp
#include "spreadsheet.h"
#include "customwidgetplugin.h"

#include <QtPlugin>

SpreaSheetPlugin::SpreaSheetPlugin(QObject *parent)
: QObject(parent)
{
initialized = false;
}

void SpreaSheetPlugin::initialize(QDesignerFormEditorIn terface * /* core */)
{
if (initialized)
return;

initialized = true;
}

bool SpreaSheetPlugin::isInitialized() const
{
return initialized;
}

QWidget *SpreaSheetPlugin::createWidget(QWidget *parent)
{
return (new SpreadSheet(2,3, parent));
}

QString SpreaSheetPlugin::name() const
{
return "SpreadSheet";
}

QString SpreaSheetPlugin::group() const
{
return "Display Widgets [Examples]";
}

QIcon SpreaSheetPlugin::icon() const
{
return QIcon();
}

QString SpreaSheetPlugin::toolTip() const
{
return "";
}

QString SpreaSheetPlugin::whatsThis() const
{
return "";
}

bool SpreaSheetPlugin::isContainer() const
{
return false;
}

QString SpreaSheetPlugin::domXml() const
{
return "<widget class=\"SpreadSheet\" name=\"spreadSheet\">\n"
" <property name=\"geometry\">\n"
" <rect>\n"
" <x>0</x>\n"
" <y>0</y>\n"
" <width>300</width>\n"
" <height>300</height>\n"
" </rect>\n"
" </property>\n"
" <property name=\"toolTip\" >\n"
" <string> Spread Sheet</string>\n"
" </property>\n"
" <property name=\"whatsThis\" >\n"
" <string> Spread sheet: Items are displayed "
" in table format.</string>\n"
" </property>\n"
"</widget>\n";
}

QString SpreaSheetPlugin::includeFile() const
{
return "spreadsheet.h";
}

QString SpreaSheetPlugin::codeTemplate() const
{
return "";
}

Q_EXPORT_PLUGIN2(customwidgetplugin, SpreaSheetPlugin)