Added support for Completing on the Cylinder Type delegate

I had to immprove the TankInfoModel with two new methods,
insertRows and setData, because the delegate used this
model to show what kind of Tanks we are offering.
Since the user can enter a new type of Tank, it's important
to add this tank to all lists using the delegates.

I Also added two new methods on the delegate itself,
to correctly shows the data, and set the data on the
model. This also will help dirk with a working example
on how to edit things while using a delegate.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>

1 files changed, 24 insertions, 9 deletions

diff --git a/qt-ui/modeldelegates.cpp b/qt-ui/modeldelegates.cpp
index ea27ed253..283cf17b0 100644
--- a/qt-ui/modeldelegates.cpp
+++ b/qt-ui/modeldelegates.cpp
@@ -10,6 +10,8 @@
 #include <QStyle>
 #include <QStyleOption>
 #include <QComboBox>
+#include <QCompleter>
+#include <QLineEdit>
 
 StarWidgetsDelegate::StarWidgetsDelegate(QWidget* parent):
 	QStyledItemDelegate(parent),
@@ -52,19 +54,32 @@ QSize StarWidgetsDelegate::sizeHint(const QStyleOptionViewItem& option, const QM
 QWidget* TankInfoDelegate::createEditor(QWidget* parent, const QStyleOptionViewItem& option, const QModelIndex& index) const
 {
 	QComboBox *comboDelegate = new QComboBox(parent);
-	TankInfoModel *model = new TankInfoModel;
-	QString data = index.model()->data(index, Qt::DisplayRole).toString();
+	TankInfoModel *model = TankInfoModel::instance();
 	comboDelegate->setModel(model);
-	int i;
-	for (i = 0; i < model->rowCount(); i++) {
-		if (model->data(model->index(i,0), Qt::DisplayRole).toString() == data)
-			break;
-	}
-	if (i != model->rowCount())
-		comboDelegate->setCurrentIndex(i);
+	comboDelegate->setEditable(true);
+	comboDelegate->setAutoCompletion(true);
+	comboDelegate->setAutoCompletionCaseSensitivity(Qt::CaseInsensitive);
+	comboDelegate->completer()->setCompletionMode(QCompleter::PopupCompletion);
 	return comboDelegate;
 }
 
+void TankInfoDelegate::setEditorData(QWidget* editor, const QModelIndex& index) const
+{
+	QComboBox *c = qobject_cast<QComboBox*>(editor);
+	QString data = index.model()->data(index, Qt::DisplayRole).toString();
+	int i = c->findText(data);
+	if (i != -1)
+		c->setCurrentIndex(i);
+	else
+		c->setEditText(data);
+}
+
+void TankInfoDelegate::setModelData(QWidget* editor, QAbstractItemModel* model, const QModelIndex& index) const
+{
+	QComboBox *c = static_cast<QComboBox*>(editor);
+	model->setData(index, c->currentText(), Qt::EditRole);
+}
+
 TankInfoDelegate::TankInfoDelegate(QObject* parent): QStyledItemDelegate(parent)
 {
 }