[PATCH] Add a SpinBoxDelegate's for DivePlannerPointsModel

[Anton Lundin]

This adds some delegates to fixup the editor SpinBox'es in the
DivePlannerPointsModel, to prevent user from entering negative values.

Fixes #609

Signed-off-by: Anton Lundin <glance at acc.umu.se>
---
 qt-ui/diveplanner.cpp    |  6 +++++
 qt-ui/modeldelegates.cpp | 64 ++++++++++++++++++++++++++++++++++++++++++++++++
 qt-ui/modeldelegates.h   | 22 +++++++++++++++++
 3 files changed, 92 insertions(+)

diff --git a/qt-ui/diveplanner.cpp b/qt-ui/diveplanner.cpp
index 5e07dcb..db02865 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));
+	// This one is a Double, so its a bit special.
+	ui.tableWidget->view()->setItemDelegateForColumn(DivePlannerPointsModel::CCSETPOINT, new DoubleSpinBoxDelegate(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..c2335d5 100644
--- a/qt-ui/modeldelegates.cpp
+++ b/qt-ui/modeldelegates.cpp
@@ -364,3 +364,67 @@ void ProfilePrintDelegate::paint(QPainter *painter, const QStyleOptionViewItem &
 	}
 	QStyledItemDelegate::paint(painter, option, index);
 }
+
+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);
+
+	return editor;
+}
+
+void SpinBoxDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const
+{
+	QSpinBox *spinBox = static_cast<QSpinBox*>(editor);
+	spinBox->setValue(index.model()->data(index, Qt::EditRole).toInt());
+}
+
+void SpinBoxDelegate::setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const
+{
+	QSpinBox *spinBox = static_cast<QSpinBox*>(editor);
+	spinBox->interpretText();
+
+	model->setData(index, spinBox->value(), Qt::EditRole);
+}
+
+void SpinBoxDelegate::updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &/* index */) const
+{
+	editor->setGeometry(option.rect);
+}
+
+DoubleSpinBoxDelegate::DoubleSpinBoxDelegate(QObject *parent) : QStyledItemDelegate(parent) {}
+
+QWidget *DoubleSpinBoxDelegate::createEditor(QWidget *parent,
+		const QStyleOptionViewItem &/* option */,
+		const QModelIndex &/* index */) const
+{
+	QDoubleSpinBox *editor = new QDoubleSpinBox(parent);
+	editor->setMinimum(0);
+	editor->setSingleStep(0.1);
+
+	return editor;
+}
+
+void DoubleSpinBoxDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const
+{
+	QDoubleSpinBox *spinBox = static_cast<QDoubleSpinBox*>(editor);
+
+	spinBox->setValue(index.model()->data(index, Qt::EditRole).toDouble());
+}
+
+void DoubleSpinBoxDelegate::setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const
+{
+	QDoubleSpinBox *spinBox = static_cast<QDoubleSpinBox*>(editor);
+	spinBox->interpretText();
+
+	model->setData(index, spinBox->value(), Qt::EditRole);
+}
+
+void DoubleSpinBoxDelegate::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..b286347 100644
--- a/qt-ui/modeldelegates.h
+++ b/qt-ui/modeldelegates.h
@@ -88,4 +88,26 @@ 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;
+};
+
+class DoubleSpinBoxDelegate : public QStyledItemDelegate {
+	Q_OBJECT
+public:
+	explicit DoubleSpinBoxDelegate(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;
+};
+
 #endif // MODELDELEGATES_H
-- 
1.9.1