Added the DiveProfileItem that uses the DiveProfileModel to diplay data.

I've used the paint() method on it ( even if it's not necessary
on a QGraphicsView ) to reduce absurdely the number of items that are
inserted on the QGraphicsScene ( each small line of the profile should
be an item if it was not for this, it's like that on the old profile. )
and thus reducing the memory consumption, speed and so on.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 48 insertions, 0 deletions

diff --git a/qt-ui/profile/diveprofileitem.h b/qt-ui/profile/diveprofileitem.h
new file mode 100644
index 000000000..1e8c0b296
--- /dev/null
+++ b/qt-ui/profile/diveprofileitem.h
@@ -0,0 +1,48 @@
+#ifndef DIVEPROFILEITEM_H
+#define DIVEPROFILEITEM_H
+
+#include <QObject>
+#include <QGraphicsPolygonItem>
+
+/* This is the Profile Item, it should be used for quite a lot of things
+ on the profile view. The usage should be pretty simple:
+
+ DiveProfileItem *profile = new DiveProfileItem();
+ profile->setVerticalAxis( profileYAxis );
+ profile->setHorizontalAxis( timeAxis );
+ profile->setModel( DiveDataModel );
+ profile->setHorizontalDataColumn( DiveDataModel::TIME );
+ profile->setVerticalDataColumn( DiveDataModel::DEPTH );
+ scene()->addItem(profile);
+
+ This is a generically item and should be used as a base for others, I think...
+*/
+
+class DiveCartesianAxis;
+class QAbstractTableModel;
+
+class DiveProfileItem : public QObject, public QGraphicsPolygonItem{
+	Q_OBJECT
+	Q_PROPERTY(QPointF pos WRITE setPos READ pos)
+	Q_PROPERTY(qreal x WRITE setX READ x)
+	Q_PROPERTY(qreal y WRITE setY READ y)
+public:
+	DiveProfileItem();
+	void setVerticalAxis(DiveCartesianAxis *vertical);
+	void setHorizontalAxis(DiveCartesianAxis *horizontal);
+	void setModel(QAbstractTableModel *model);
+	void setHorizontalDataColumn(int column);
+	void setVerticalDataColumn(int column);
+	virtual void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget = 0);
+public slots:
+	void modelDataChanged();
+private:
+	DiveCartesianAxis *hAxis;
+	DiveCartesianAxis *vAxis;
+	QAbstractTableModel *dataModel;
+	int hDataColumn;
+	int vDataColumn;
+};
+
+
+#endif
\ No newline at end of file