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/*============================================================================
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**
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** Project/Product :
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** Filename : textdelegate.h
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** Author(s) : DDP
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**
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** Description : A delgated widget to assist in the editing of text items
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** within a table
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**
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**
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***==========================================================================*/
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#include <QtGui>
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#include "textdelegate.h"
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/*----------------------------------------------------------------------------
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** FUNCTION : textDelegate
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**
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** DESCRIPTION : Construct a new object
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**
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** A delegate that allows the user to change text
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** values from the model using a lineEditor widget.
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**
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** INPUTS : maxlen - Max length of text allowed
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** parent - Parent object
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**
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** RETURNS :
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**
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----------------------------------------------------------------------------*/
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textDelegate::textDelegate(int maxlen, QObject *parent)
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: QItemDelegate(parent)
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{
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max_len = maxlen;
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}
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/*----------------------------------------------------------------------------
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** FUNCTION : createEditor
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**
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** DESCRIPTION : Create an editor widget
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**
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**
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** INPUTS : parent
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** option
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** index
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**
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** RETURNS : A QLineEdit widget
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**
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----------------------------------------------------------------------------*/
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QWidget *textDelegate::createEditor(QWidget *parent,
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const QStyleOptionViewItem &/* option */,
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const QModelIndex &/* index */) const
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{
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QLineEdit *editor = new QLineEdit(parent);
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editor->setMaxLength(max_len);
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return editor;
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}
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/*----------------------------------------------------------------------------
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** FUNCTION : setEditorData
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**
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** DESCRIPTION : Inserts model data into the editor widget
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**
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**
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** INPUTS : editor - Ref to editor widget
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** index -
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**
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** RETURNS :
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**
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----------------------------------------------------------------------------*/
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void textDelegate::setEditorData(QWidget *editor,
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const QModelIndex &index) const
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{
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QString value = index.model()->data(index, Qt::EditRole).toString();
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QLineEdit *lineEditor = static_cast<QLineEdit*>(editor);
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lineEditor->setText(value);
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}
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/*----------------------------------------------------------------------------
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** FUNCTION : setModelData
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**
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** DESCRIPTION : Extract data from the editor widget and update the model
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**
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**
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** INPUTS : editor - Target widget
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** model - Current model
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** index - Index into model
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**
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** RETURNS :
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**
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----------------------------------------------------------------------------*/
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void textDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
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const QModelIndex &index) const
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{
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QLineEdit *lineEdit = static_cast<QLineEdit*>(editor);
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QString value = lineEdit->text();
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model->setData(index, value, Qt::EditRole);
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}
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/*----------------------------------------------------------------------------
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** FUNCTION : updateEditorGeometry
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**
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** DESCRIPTION : Updates the geometry of the editor widget
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**
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**
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** INPUTS : editor - Target widget
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** option -
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* index
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**
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** RETURNS :
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**
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----------------------------------------------------------------------------*/
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void textDelegate::updateEditorGeometry(QWidget *editor,
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const QStyleOptionViewItem &option, const QModelIndex &/* index */) const
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{
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editor->setGeometry(option.rect);
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}
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