attributedelegate.cpp

#include <QtGui>

#include "attributedelegate.h"
#include <iostream>

using namespace::std;

AttributeDelegate::AttributeDelegate(QObject *parent)
    : QItemDelegate(parent)
{
}

QWidget *AttributeDelegate::createEditor(QWidget *parent,
    const QStyleOptionViewItem &/* option */,
    const QModelIndex & index ) const
{
    int col=index.column();
    int row=index.row();
    
    if (col==0 && row==index.model()->rowCount() -1 )
    {
	//We are editing a new attribute, starting with attribute name
	QComboBox *editor = new QComboBox(parent);
	editor->insertItems (0,attributeTable->getKeys());
	return editor;
    }
    if (col==1 && row==index.model()->rowCount() -1 )
    {
	qDebug()<< "Edit value now...";
	//We are editing a new attribute, starting with attribute name
	QComboBox *editor = new QComboBox(parent);
	editor->insertItems (0,attributeTable->getKeys());
	return editor;

    }

    // Is there already an atttribute defined or 
    // do we need to create a new one?

    QVariant var=index.model()->data(index.model()->index(row,2,QModelIndex()));
    QString typeName=var.toString();
    qDebug()<< "AttrDel::createEditor type="<<qPrintable (typeName);

    if (typeName=="IntList")
    {
	QSpinBox *editor = new QSpinBox(parent);
	editor->setMinimum(0);
	editor->setMaximum(5);
	return editor;
    } else if (typeName=="FreeInt")
    {
	QSpinBox *editor = new QSpinBox(parent);
	editor->setMinimum(0);
	editor->setMaximum(100);
	return editor;
    } else if (typeName=="FreeString")
    {
	QComboBox *editor = new QComboBox(parent);
	return editor;
    } else if (typeName=="StringList")
    {
	QComboBox *editor = new QComboBox(parent);
	return editor;
    } 

    return NULL;
}

void AttributeDelegate::setEditorData(QWidget *editor,
                                    const QModelIndex &index) const
{
    QVariant value= index.model()->data(index, Qt::DisplayRole);
    switch (value.type())
    {
	case QVariant::Int:
	{
	    int value = index.model()->data(index, Qt::DisplayRole).toInt();
	    QSpinBox *spinBox = static_cast<QSpinBox*>(editor);
	    spinBox->setValue(value);
	    break;
	}   
	/*
	{
	    QString value = index.model()->data(index, Qt::DisplayRole).toString();
	    QLineEdit *le= static_cast<QLineEdit*>(editor);
	    le->setText(value);
	    break;
	}
	*/
	case QVariant::String:
	{
	    QComboBox *cb= static_cast<QComboBox*>(editor);
	    QStringList sl;
	    sl<< index.model()->data(index, Qt::DisplayRole).toString();
	    cb->insertStringList (sl);
	    break;
	}
	default: 
	    break;
    }	    
}

void AttributeDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
                                   const QModelIndex &index) const
{
    QVariant value= index.model()->data(index, Qt::DisplayRole);
    switch (value.type())
    {
	case QVariant::Int:
	{
	    QSpinBox *spinBox = static_cast<QSpinBox*>(editor);
	    spinBox->interpretText();
	    model->setData(index, spinBox->value(), Qt::EditRole);
	    break;
	}   
	case QVariant::String:
	{
	    QComboBox *cb = static_cast<QComboBox*>(editor);
	    model->setData(index, cb->currentText(), Qt::EditRole);
	    break;
	}
	default:
	    break;
    }	    

}

void AttributeDelegate::updateEditorGeometry(QWidget *editor,
    const QStyleOptionViewItem &option, const QModelIndex &/* index */) const
{
    editor->setGeometry(option.rect);
}

void AttributeDelegate::setAttributeTable (AttributeTable *table)
{
    attributeTable=table;
}