Plots Lines and handles on the Planner

This is still a bit bugged - the lines are going to the wrong
end - most probaly I messed something on the math. I'll now fix
the sizing issue then I'll try to make it behave in the proper
way.

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

qt-ui/diveplanner.cpp

@@ -1,5 +1,6 @@
 #include "diveplanner.h"
 #include <QMouseEvent>
+#include <boost/graph/graph_concepts.hpp>
 
 DivePlanner* DivePlanner::instance()
 {
@@ -16,7 +17,38 @@ DivePlanner::DivePlanner(QWidget* parent): QGraphicsView(parent)
 void DivePlanner::mouseDoubleClickEvent(QMouseEvent* event)
 {
 	QGraphicsEllipseItem *item = new QGraphicsEllipseItem(-10,-10,20,20);
-	item->setPos( mapToScene(event->pos()));
+	QPointF mappedPos = mapToScene(event->pos());
+
+	item->setPos( mappedPos );
     scene()->addItem(item);
+	handles << item;
+
+	if (lines.empty()){
+		QGraphicsLineItem *first = new QGraphicsLineItem(0,0, mappedPos.x(), mappedPos.y());
+		lines << first;
+		create_deco_stop();
+		scene()->addItem(first);
+	}else{
+		clear_generated_deco();
+		create_deco_stop();
+	}
+}
+
+void DivePlanner::clear_generated_deco()
+{
+	for(int i = handles.count(); i < lines.count(); i++){
+		scene()->removeItem(lines.last());
+		delete lines.last();
+		lines.removeLast();
+	}
+}
+
+void DivePlanner::create_deco_stop()
+{
+	// this needs to create everything
+	// for the calculated deco.
+	QGraphicsLineItem *item = new QGraphicsLineItem(handles.last()->x(), handles.last()->y(), 100, 0);
+	scene()->addItem(item);
+	lines << item;
 }
 

qt-ui/diveplanner.h

@@ -10,8 +10,12 @@ public:
 	static DivePlanner *instance();
 protected:
     virtual void mouseDoubleClickEvent(QMouseEvent* event);
-	
+    void clear_generated_deco();
+	void create_deco_stop();
+
 private:
     DivePlanner(QWidget* parent = 0);
+	QList<QGraphicsLineItem*> lines;
+	QList<QGraphicsEllipseItem*> handles;
 };
 #endif