Add dive list view to main window

Add files for dive list model/view implementation. Replace TableView
with the custom list view.  Amendments to makefile to match.

Note: we don't yet handle trips and may want to add additional columns
to describe the dive.

A single, dummy dive is added to show how this works (get root; item is
child of root). Purely to illustrate - needs proper integration etc.

Amend member names for dive list view components

Various naming changes to conform to coding style. Required changes to
members (remove prefix) and methods (avoid clash with members).

Clean up indentation (swap spaces for tabs). Code for model/view was
written with a different editor which had different settings :-/

[Dirk Hohndel: minor whitespace cleanup]

Signed-off-by: Amit Chaudhuri <amit.k.chaudhuri@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 136 insertions, 0 deletions

diff --git a/qt-ui/divetripmodel.cpp b/qt-ui/divetripmodel.cpp
new file mode 100644
index 000000000..a03603bcf
--- /dev/null
+++ b/qt-ui/divetripmodel.cpp
@@ -0,0 +1,136 @@
+#include "divetripmodel.h"
+
+
+DiveItem::DiveItem(int num, QString dt, float dur, float dep, QString loc, DiveItem *p):
+		   number(num), dateTime(dt), duration(dur), depth(dep), location(loc), parentItem(p)
+{
+	if (parentItem)
+		parentItem->addChild(this);
+}
+
+
+DiveTripModel::DiveTripModel(const QString &filename, QObject *parent) : QAbstractItemModel(parent), filename(filename)
+{
+	rootItem = new DiveItem;
+}
+
+
+Qt::ItemFlags DiveTripModel::flags(const QModelIndex &index) const
+{
+	Qt::ItemFlags diveFlags = QAbstractItemModel::flags(index);
+	if (index.isValid()) {
+		diveFlags |= Qt::ItemIsSelectable|Qt::ItemIsEnabled;
+	}
+	return diveFlags;
+}
+
+
+QVariant DiveTripModel::data(const QModelIndex &index, int role) const
+{
+	if (!index.isValid())
+		return QVariant();
+
+	if (role != Qt::DisplayRole)
+		return QVariant();
+
+	DiveItem *item = static_cast<DiveItem*>(index.internalPointer());
+
+	QVariant retVal;
+	switch (index.column()) {
+	case DIVE_NUMBER:
+		retVal = QVariant(item->diveNumber());
+		break;
+	case DIVE_DATE_TIME:
+		retVal = QVariant(item->diveDateTime());
+		break;
+	case DIVE_DURATION:
+		retVal = QVariant(item->diveDuration());
+		break;
+	case DIVE_DEPTH:
+		retVal = QVariant(item->diveDepth());
+		break;
+	case DIVE_LOCATION:
+		retVal = QVariant(item->diveLocation());
+		break;
+	default:
+		return QVariant();
+	};
+	return retVal;
+}
+
+
+QVariant DiveTripModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+	if (orientation == Qt::Horizontal && role == Qt::DisplayRole) {
+		if (section == DIVE_NUMBER) {
+			return tr("Dive number");
+		} else if (section == DIVE_DATE_TIME) {
+			return tr("Date");
+		} else if (section == DIVE_DURATION) {
+			return tr("Duration");
+		} else if (section == DIVE_DEPTH) {
+			return tr("Depth");
+		} else if (section == DIVE_LOCATION) {
+			return tr("Location");
+		}
+	}
+	return QVariant();
+}
+
+int DiveTripModel::rowCount(const QModelIndex &parent) const
+{
+	/* only allow kids in column 0 */
+	if (parent.isValid() && parent.column() > 0){
+		return 0;
+	}
+	DiveItem *item = itemForIndex(parent);
+	return item ? item->childCount() : 0;
+}
+
+
+
+int DiveTripModel::columnCount(const QModelIndex &parent) const
+{
+	return parent.isValid() && parent.column() != 0 ? 0 : COLUMNS;
+}
+
+
+QModelIndex DiveTripModel::index(int row, int column, const QModelIndex &parent) const
+{
+
+	if (!rootItem || row < 0 || column < 0 || column >= COLUMNS ||
+	    (parent.isValid() && parent.column() != 0))
+		return QModelIndex();
+
+	DiveItem *parentItem = itemForIndex(parent);
+	Q_ASSERT(parentItem);
+	if (DiveItem *item = parentItem->childAt(row)){
+		return createIndex(row, column, item);
+	}
+	return QModelIndex();
+}
+
+
+QModelIndex DiveTripModel::parent(const QModelIndex &childIndex) const
+{
+	if (!childIndex.isValid())
+		return QModelIndex();
+
+	DiveItem *child = static_cast<DiveItem*>(childIndex.internalPointer());
+	DiveItem *parent = child->parent();
+
+	if (parent == rootItem)
+		return QModelIndex();
+
+	return createIndex(parent->rowOfChild(child), 0, parent);
+}
+
+
+DiveItem* DiveTripModel::itemForIndex(const QModelIndex &index) const
+{
+	if (index.isValid()) {
+		DiveItem *item = static_cast<DiveItem*>(index.internalPointer());
+		return item;
+	}
+	return rootItem;
+}