[RFC PATCH] WIP: add a SpinBoxDelegate for DivePlannerPointsModel

[Anton Lundin]

This is something to show what we need to do for the
DivePlannerPointsModel, to fix entering of negative values there.
---
 qt-ui/diveplanner.cpp    |  6 ++++++
 qt-ui/modeldelegates.cpp | 43 +++++++++++++++++++++++++++++++++++++++++++
 qt-ui/modeldelegates.h   | 16 ++++++++++++++++
 3 files changed, 65 insertions(+)

diff --git a/qt-ui/diveplanner.cpp b/qt-ui/diveplanner.cpp
index 631d605..a03b84d 100644
--- a/qt-ui/diveplanner.cpp
+++ b/qt-ui/diveplanner.cpp
@@ -253,6 +253,12 @@ DivePlannerWidget::DivePlannerWidget(QWidget *parent, Qt::WindowFlags f) : QWidg
 	ui.tableWidget->setModel(DivePlannerPointsModel::instance());
 	DivePlannerPointsModel::instance()->setRecalc(true);
 	ui.tableWidget->view()->setItemDelegateForColumn(DivePlannerPointsModel::GAS, new AirTypesDelegate(this));
+	// This makes shure the spinbox gets a setMinimum(0) on it so we can't have negative time or depth.
+	ui.tableWidget->view()->setItemDelegateForColumn(DivePlannerPointsModel::DEPTH, new SpinBoxDelegate(this));
+	ui.tableWidget->view()->setItemDelegateForColumn(DivePlannerPointsModel::RUNTIME, new SpinBoxDelegate(this));
+	ui.tableWidget->view()->setItemDelegateForColumn(DivePlannerPointsModel::DURATION, new SpinBoxDelegate(this));
+	// Nope, thats a QDoubleSpinBox.
+	//ui.tableWidget->view()->setItemDelegateForColumn(DivePlannerPointsModel::CCSETPOINT, new SpinBoxDelegate(this));
 	ui.cylinderTableWidget->setTitle(tr("Available Gases"));
 	ui.cylinderTableWidget->setModel(CylindersModel::instance());
 	QTableView *view = ui.cylinderTableWidget->view();
diff --git a/qt-ui/modeldelegates.cpp b/qt-ui/modeldelegates.cpp
index dc6af56..4b58452 100644
--- a/qt-ui/modeldelegates.cpp
+++ b/qt-ui/modeldelegates.cpp
@@ -364,3 +364,46 @@ void ProfilePrintDelegate::paint(QPainter *painter, const QStyleOptionViewItem &
 	}
 	QStyledItemDelegate::paint(painter, option, index);
 }
+
+/*
+void SpinBoxDelegate::revertModelData(QWidget *widget, QAbstractItemDelegate::EndEditHint hint)
+{
+}
+*/
+
+SpinBoxDelegate::SpinBoxDelegate(QObject *parent) : QStyledItemDelegate(parent)
+{
+}
+
+QWidget *SpinBoxDelegate::createEditor(QWidget *parent,
+		const QStyleOptionViewItem &/* option */,
+		const QModelIndex &/* index */) const
+{
+	QSpinBox *editor = new QSpinBox(parent);
+	editor->setMinimum(0);
+	//editor->setMaximum(100);
+
+	return editor;
+}
+
+void SpinBoxDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const
+{
+	int value = index.model()->data(index, Qt::EditRole).toInt();
+
+	QSpinBox *spinBox = static_cast<QSpinBox*>(editor);
+	spinBox->setValue(value);
+}
+
+void SpinBoxDelegate::setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const
+{
+	QSpinBox *spinBox = static_cast<QSpinBox*>(editor);
+	spinBox->interpretText();
+	int value = spinBox->value();
+
+	model->setData(index, value, Qt::EditRole);
+}
+
+void SpinBoxDelegate::updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &/* index */) const
+{
+	editor->setGeometry(option.rect);
+}
diff --git a/qt-ui/modeldelegates.h b/qt-ui/modeldelegates.h
index e2b705e..b4959b2 100644
--- a/qt-ui/modeldelegates.h
+++ b/qt-ui/modeldelegates.h
@@ -88,4 +88,20 @@ public:
 	void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const;
 };
 
+class SpinBoxDelegate : public QStyledItemDelegate {
+	Q_OBJECT
+public:
+	explicit SpinBoxDelegate(QObject *parent = 0);
+
+	QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const;
+	void setEditorData(QWidget *editor, const QModelIndex &index) const;
+	void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const;
+	void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const;
+	/*
+public
+slots:
+	void revertModelData(QWidget *widget, QAbstractItemDelegate::EndEditHint hint);
+	*/
+};
+
 #endif // MODELDELEGATES_H
-- 
1.9.1