From dc8cc35d51fc2b4272c59ab71600415e6139c208 Mon Sep 17 00:00:00 2001
From: Jim Evins <evins@snaught.com>
Date: Sun, 8 Dec 2013 23:43:05 -0500
Subject: [PATCH] Added simple pointer tracking signals.

---
 app/MainWindow.cpp |  4 ++--
 app/View.cpp       | 16 ++++++++++++++++
 app/View.h         | 35 ++++++++++++++++++++++++++++++++++-
 3 files changed, 52 insertions(+), 3 deletions(-)

diff --git a/app/MainWindow.cpp b/app/MainWindow.cpp
index 9ea1cf1..8c18a4f 100644
--- a/app/MainWindow.cpp
+++ b/app/MainWindow.cpp
@@ -513,8 +513,8 @@ namespace glabels
 		updateCursorInfo();
 
 		connect( view, SIGNAL(zoomChanged()), this, SLOT(updateZoomInfo()) );
-
-		/* TODO: connect cursor signals to appropriate slots. */
+		connect( view, SIGNAL(pointerMoved(double, double)), this, SLOT(updateCursorInfo(double, double)) );
+		connect( view, SIGNAL(pointerExited()), this, SLOT(updateCursorInfo()) );
 	}
 
 
diff --git a/app/View.cpp b/app/View.cpp
index b60648a..8a34933 100644
--- a/app/View.cpp
+++ b/app/View.cpp
@@ -20,6 +20,7 @@
 
 #include "View.h"
 
+#include <QMouseEvent>
 #include <cmath>
 #include <iostream>
 
@@ -41,6 +42,8 @@ namespace glabels
 		setZoomReal( 1, false );
 		mModel         = 0;
 
+		setMouseTracking( true );
+
 		mScene = new QGraphicsScene();
 		setScene( mScene );
 	}
@@ -154,4 +157,17 @@ namespace glabels
 		}
 	}
 
+
+	void View::mouseMoveEvent( QMouseEvent* event )
+	{
+		QPointF pointer = mapToScene( event->x(), event->y() );
+		emit pointerMoved( pointer.x(), pointer.y() );
+	}
+
+
+	void View::leaveEvent( QEvent* event )
+	{
+		emit pointerExited();
+	}
+
 }
diff --git a/app/View.h b/app/View.h
index 738d2db..592494f 100644
--- a/app/View.h
+++ b/app/View.h
@@ -34,19 +34,40 @@ namespace glabels
 	{
 		Q_OBJECT
 
+		/////////////////////////////////////
+		// Lifecycle
+		/////////////////////////////////////
 	public:
 		View( QWidget *parent = 0 );
 
 
+		/////////////////////////////////////
+		// Signals
+		/////////////////////////////////////
 	signals:
 		void zoomChanged();
+		void pointerMoved( double x, double y );
+		void pointerExited();
 
 
+		/////////////////////////////////////
+		// Parameters
+		/////////////////////////////////////
 	public:
 		inline double zoom() const;
 
+
+		/////////////////////////////////////
+		// Model
+		/////////////////////////////////////
+	public:
 		void setModel( LabelModel* model );
 
+
+		/////////////////////////////////////
+		// Zoom operations
+		/////////////////////////////////////
+	public:
 		void zoomIn();
 		void zoomOut();
 		void zoom1To1();
@@ -57,10 +78,18 @@ namespace glabels
 		void setZoomReal( double zoom, bool zoomToFitFlag );
 
 
+		/////////////////////////////////////
+		// Event handlers
+		/////////////////////////////////////
 	protected:
-		void resizeEvent( QResizeEvent *event );
+		void resizeEvent( QResizeEvent* event );
+		void mouseMoveEvent( QMouseEvent* event );
+		void leaveEvent( QEvent* event );
 
 
+		/////////////////////////////////////
+		// Private data
+		/////////////////////////////////////
 	private:
 		QGraphicsScene*  mScene;
 
@@ -72,6 +101,10 @@ namespace glabels
 	};
 
 
+	/////////////////////////////////
+	// INLINE METHODS
+	/////////////////////////////////
+
 	inline double View::zoom() const
 	{
 		return mZoom;