diff --git a/libglabels/Frame.cpp b/libglabels/Frame.cpp
index f403cd6..28241bb 100644
--- a/libglabels/Frame.cpp
+++ b/libglabels/Frame.cpp
@@ -24,44 +24,6 @@
 namespace libglabels
 {
 
-	int Frame::nLabels() const
-	{
-		int n = 0;
-
-		std::list<Layout*>::const_iterator it;
-		for ( it = mLayouts.begin(); it != mLayouts.end(); it++ )
-		{
-			n += (*it)->nx() * (*it)->ny();
-		}
-
-		return n;
-	}
-
-
-	QString &Frame::layoutDescription()
-	{
-		if ( mLayouts.size() == 1 )
-		{
-			Layout *layout = *mLayouts.begin();
-
-			/*
-			 * Translators: %1 = number of labels across a page,
-			 *              %2 = number of labels down a page,
-			 *              %3 = total number of labels on a page (sheet).
-			 */
-			mLayoutDescription = QString( tr("%1 x %2 (%3 per sheet)") )
-				.arg(layout->nx()).arg(layout->ny()).arg(nLabels());
-		}
-		else
-		{
-			/* Translators: %1 is the total number of labels on a page (sheet). */
-			mLayoutDescription = QString( tr("%1 per sheet") ).arg( nLabels() );
-		}
-
-		return mLayoutDescription;
-	}
-
-
 	std::vector<Point> Frame::getOrigins() const
 	{
 		std::vector<Point> origins( nLabels() );
@@ -87,6 +49,26 @@ namespace libglabels
 	void Frame::addLayout( Layout *layout )
 	{
 		mLayouts.push_back( layout );
+
+		// Update total number of labels
+		mNLabels += layout->nx() * layout->ny();
+
+		// Update layout description
+		if ( mLayouts.size() == 1 )
+		{
+			/*
+			 * Translators: %1 = number of labels across a page,
+			 *              %2 = number of labels down a page,
+			 *              %3 = total number of labels on a page (sheet).
+			 */
+			mLayoutDescription = QString( tr("%1 x %2 (%3 per sheet)") )
+				.arg(layout->nx()).arg(layout->ny()).arg(mNLabels);
+		}
+		else
+		{
+			/* Translators: %1 is the total number of labels on a page (sheet). */
+			mLayoutDescription = QString( tr("%1 per sheet") ).arg(mNLabels);
+		}
 	}
 
 
diff --git a/libglabels/Frame.h b/libglabels/Frame.h
index a75e2f9..d8274f7 100644
--- a/libglabels/Frame.h
+++ b/libglabels/Frame.h
@@ -41,31 +41,34 @@ namespace libglabels
 		Q_DECLARE_TR_FUNCTIONS(Frame)
 
 	protected:
-		Frame( const QString &id = "0" ) : mId(id)
+		Frame( const QString &id = "0" ) : mId(id), mNLabels(0), mLayoutDescription("")
 		{
 		}
 
 	public:
 		inline const QString &id() const { return mId; }
+		inline int nLabels() const { return mNLabels; }
+		inline const QString &layoutDescription() { return mLayoutDescription; }
 
-		int nLabels() const;
-		QString &layoutDescription();
 		std::vector<Point> getOrigins() const;
 
 		void addLayout( Layout *layout );
 		void addMarkup( Markup *markup );
 
-		virtual void getSize( double *w, double *h ) const = 0;
+		virtual double w() const = 0;
+		virtual double h() const = 0;
+
+		virtual const QString &sizeDescription( Units *units ) = 0;
 		virtual bool isSimilar( Frame *b ) const = 0;
-		virtual QString &getSizeDescription( Units *units ) const = 0;
 
 	private:
 		QString mId;
+		int     mNLabels;
+		QString mLayoutDescription;
 
 		std::list<Layout*> mLayouts;
 		std::list<Markup*> mMarkups;
 
-		QString mLayoutDescription;
 	};
 
 }
diff --git a/libglabels/FrameCd.cpp b/libglabels/FrameCd.cpp
index 5f71554..007208f 100644
--- a/libglabels/FrameCd.cpp
+++ b/libglabels/FrameCd.cpp
@@ -29,28 +29,6 @@
 namespace libglabels
 {
 
-	void FrameCd::getSize( double *w, double *h ) const
-	{
-		if ( mW == 0 )
-		{
-			*w = 2 * mR1;
-		}
-		else
-		{
-			*w = mW;
-		}
-
-		if ( mH == 0 )
-		{
-			*h = 2 * mR1;
-		}
-		else
-		{
-			*h = mH;
-		}
-	}
-
-
 	bool FrameCd::isSimilar( Frame *b ) const
 	{
 		if ( FrameCd *bCd = dynamic_cast<FrameCd*>(b) )
@@ -67,24 +45,26 @@ namespace libglabels
 	}
 
 
-	QString &FrameCd::getSizeDescription( Units *units ) const
+	const QString &FrameCd::sizeDescription( Units *units )
 	{
 		if ( units->id() == "in" )
 		{
 			QString dStr = StrUtil::formatFraction( 2 * mR1 * units->unitsPerPoint() );
 
-			return QString().sprintf( "%s %s %s",
-						  dStr.toStdString().c_str(),
-						  units->name().toStdString().c_str(),
-						  tr("diameter").toStdString().c_str() );
+			mSizeDescription = QString().sprintf( "%s %s %s",
+							      dStr.toStdString().c_str(),
+							      units->name().toStdString().c_str(),
+							      tr("diameter").toStdString().c_str() );
 		}
 		else
 		{
-			return QString().sprintf( "%.5g %s %s",
-						  2 * mR1 * units->unitsPerPoint(),
-						  units->name().toStdString().c_str(),
-						  tr("diameter").toStdString().c_str() );
+			mSizeDescription = QString().sprintf( "%.5g %s %s",
+							      2 * mR1 * units->unitsPerPoint(),
+							      units->name().toStdString().c_str(),
+							      tr("diameter").toStdString().c_str() );
 		}
+
+		return mSizeDescription;
 	}
 
 }
diff --git a/libglabels/FrameCd.h b/libglabels/FrameCd.h
index c1cafd5..e980459 100644
--- a/libglabels/FrameCd.h
+++ b/libglabels/FrameCd.h
@@ -42,14 +42,13 @@ namespace libglabels
 
 		inline double r1() const { return mR1; }
 		inline double r2() const { return mR2; }
-		inline double w() const { return mW; }
-		inline double h() const { return mH; }
 		inline double waste() const { return mWaste; }
 
+		double w() const { return (mW == 0) ? 2*mR1 : mW; }
+		double h() const { return (mH == 0) ? 2*mR1 : mH; }
 
-		void getSize( double *w, double *h ) const;
+		const QString &sizeDescription( Units *units );
 		bool isSimilar( Frame *b ) const;
-		QString &getSizeDescription( Units *units ) const;
 
 
 	private:
@@ -59,6 +58,8 @@ namespace libglabels
 		double mH;
 		double mWaste;
 
+		QString mSizeDescription;
+
 	};
 
 }
diff --git a/libglabels/FrameEllipse.cpp b/libglabels/FrameEllipse.cpp
index 60e95fc..93c9981 100644
--- a/libglabels/FrameEllipse.cpp
+++ b/libglabels/FrameEllipse.cpp
@@ -29,13 +29,6 @@
 namespace libglabels
 {
 
-	void FrameEllipse::getSize( double *w, double *h ) const
-	{
-		*w = mW;
-		*h = mH;
-	}
-
-
 	bool FrameEllipse::isSimilar( Frame *b ) const
 	{
 		if ( FrameEllipse *bEllipse = dynamic_cast<FrameEllipse*>(b) )
@@ -50,24 +43,24 @@ namespace libglabels
 	}
 
 
-	QString &FrameEllipse::getSizeDescription( Units *units ) const
+	const QString &FrameEllipse::sizeDescription( Units *units )
 	{
 		if ( units->id() == "in" )
 		{
 			QString wStr = StrUtil::formatFraction( mW * units->unitsPerPoint() );
 			QString hStr = StrUtil::formatFraction( mH * units->unitsPerPoint() );
 
-			return QString().sprintf( "%s x %s %s",
-						  wStr.toStdString().c_str(),
-						  hStr.toStdString().c_str(),
-						  units->name().toStdString().c_str() );
+			mSizeDescription = QString().sprintf( "%s x %s %s",
+							      wStr.toStdString().c_str(),
+							      hStr.toStdString().c_str(),
+							      units->name().toStdString().c_str() );
 		}
 		else
 		{
-			return QString().sprintf( "%.5g x %.5g %s",
-						  mW * units->unitsPerPoint(),
-						  mH * units->unitsPerPoint(),
-						  units->name().toStdString().c_str() );
+			mSizeDescription = QString().sprintf( "%.5g x %.5g %s",
+							      mW * units->unitsPerPoint(),
+							      mH * units->unitsPerPoint(),
+							      units->name().toStdString().c_str() );
 		}
 	}
 
diff --git a/libglabels/FrameEllipse.h b/libglabels/FrameEllipse.h
index a6b848e..4743a67 100644
--- a/libglabels/FrameEllipse.h
+++ b/libglabels/FrameEllipse.h
@@ -38,14 +38,13 @@ namespace libglabels
 		{
 		}
 
-		inline double w() const { return mW; }
-		inline double h() const { return mH; }
 		inline double waste() const { return mWaste; }
 
+		double w() const { return mW; }
+		double h() const { return mH; }
 
-		void getSize( double *w, double *h ) const;
+		const QString &sizeDescription( Units *units );
 		bool isSimilar( Frame *b ) const;
-		QString &getSizeDescription( Units *units ) const;
 
 
 	private:
@@ -53,6 +52,8 @@ namespace libglabels
 		double mH;
 		double mWaste;
 
+		QString mSizeDescription;
+
 	};
 
 }
diff --git a/libglabels/FrameRect.cpp b/libglabels/FrameRect.cpp
index 023ef6e..8b19023 100644
--- a/libglabels/FrameRect.cpp
+++ b/libglabels/FrameRect.cpp
@@ -29,10 +29,27 @@
 namespace libglabels
 {
 
-	void FrameRect::getSize( double *w, double *h ) const
+	const QString &FrameRect::sizeDescription( Units *units )
 	{
-		*w = mW;
-		*h = mH;
+		if ( units->id() == "in" )
+		{
+			QString wStr = StrUtil::formatFraction( mW * units->unitsPerPoint() );
+			QString hStr = StrUtil::formatFraction( mH * units->unitsPerPoint() );
+
+			mSizeDescription = QString().sprintf( "%s x %s %s",
+							      wStr.toStdString().c_str(),
+							      hStr.toStdString().c_str(),
+							      units->name().toStdString().c_str() );
+		}
+		else
+		{
+			mSizeDescription = QString().sprintf( "%.5g x %.5g %s",
+							      mW * units->unitsPerPoint(),
+							      mH * units->unitsPerPoint(),
+							      units->name().toStdString().c_str() );
+		}
+
+		return mSizeDescription;
 	}
 
 
@@ -49,27 +66,5 @@ namespace libglabels
 		return false;
 	}
 
-
-	QString &FrameRect::getSizeDescription( Units *units ) const
-	{
-		if ( units->id() == "in" )
-		{
-			QString wStr = StrUtil::formatFraction( mW * units->unitsPerPoint() );
-			QString hStr = StrUtil::formatFraction( mH * units->unitsPerPoint() );
-
-			return QString().sprintf( "%s x %s %s",
-						  wStr.toStdString().c_str(),
-						  hStr.toStdString().c_str(),
-						  units->name().toStdString().c_str() );
-		}
-		else
-		{
-			return QString().sprintf( "%.5g x %.5g %s",
-						  mW * units->unitsPerPoint(),
-						  mH * units->unitsPerPoint(),
-						  units->name().toStdString().c_str() );
-		}
-	}
-
 }
 
diff --git a/libglabels/FrameRect.h b/libglabels/FrameRect.h
index cdb34fb..f69183a 100644
--- a/libglabels/FrameRect.h
+++ b/libglabels/FrameRect.h
@@ -40,16 +40,15 @@ namespace libglabels
 		{
 		}
 
-		inline double w() const { return mW; }
-		inline double h() const { return mH; }
 		inline double r() const { return mR; }
 		inline double xWaste() const { return mXWaste; }
 		inline double yWaste() const { return mYWaste; }
 
+		double w() const { return mW; }
+		double h() const { return mH; }
 
-		void getSize( double *w, double *h ) const;
+		const QString &sizeDescription( Units *units );
 		bool isSimilar( Frame *b ) const;
-		QString &getSizeDescription( Units *units ) const;
 
 
 	private:
@@ -59,6 +58,8 @@ namespace libglabels
 		double mXWaste;
 		double mYWaste;
 
+		QString mSizeDescription;
+
 	};
 
 }
diff --git a/libglabels/FrameRound.cpp b/libglabels/FrameRound.cpp
index 4253d12..a737a3c 100644
--- a/libglabels/FrameRound.cpp
+++ b/libglabels/FrameRound.cpp
@@ -29,13 +29,6 @@
 namespace libglabels
 {
 
-	void FrameRound::getSize( double *w, double *h ) const
-	{
-		*w = 2*mR;
-		*h = 2*mR;
-	}
-
-
 	bool FrameRound::isSimilar( Frame *b ) const
 	{
 		if ( FrameRound *bRound = dynamic_cast<FrameRound*>(b) )
@@ -49,24 +42,26 @@ namespace libglabels
 	}
 
 
-	QString &FrameRound::getSizeDescription( Units *units ) const
+	const QString &FrameRound::sizeDescription( Units *units )
 	{
 		if ( units->id() == "in" )
 		{
 			QString dStr = StrUtil::formatFraction( 2 * mR * units->unitsPerPoint() );
 
-			return QString().sprintf( "%s %s %s",
-						  dStr.toStdString().c_str(),
-						  units->name().toStdString().c_str(),
-						  tr("diameter").toStdString().c_str() );
+			mSizeDescription = QString().sprintf( "%s %s %s",
+							      dStr.toStdString().c_str(),
+							      units->name().toStdString().c_str(),
+							      tr("diameter").toStdString().c_str() );
 		}
 		else
 		{
-			return QString().sprintf( "%.5g %s %s",
-						  2 * mR * units->unitsPerPoint(),
-						  units->name().toStdString().c_str(),
-						  tr("diameter").toStdString().c_str() );
+			mSizeDescription = QString().sprintf( "%.5g %s %s",
+							      2 * mR * units->unitsPerPoint(),
+							      units->name().toStdString().c_str(),
+							      tr("diameter").toStdString().c_str() );
 		}
+
+		return mSizeDescription;
 	}
 
 }
diff --git a/libglabels/FrameRound.h b/libglabels/FrameRound.h
index f55b4fb..0b35f4f 100644
--- a/libglabels/FrameRound.h
+++ b/libglabels/FrameRound.h
@@ -40,16 +40,18 @@ namespace libglabels
 		inline double r() const { return mR; }
 		inline double waste() const { return mWaste; }
 
+		double w() const { return 2*mR; }
+		double h() const { return 2*mR; }
 
-		void getSize( double *w, double *h ) const;
+		const QString &sizeDescription( Units *units );
 		bool isSimilar( Frame *b ) const;
-		QString &getSizeDescription( Units *units ) const;
 
 
 	private:
 		double mR;
 		double mWaste;
 
+		QString mSizeDescription;
 	};
 
 }