From 3a9c974fd5fc9335d9e063e1a76ec0e2cec9d1be Mon Sep 17 00:00:00 2001
From: cignoni <paolo.cignoni@isti.cnr.it>
Date: Thu, 16 Feb 2012 17:31:31 +0000
Subject: [PATCH] Handy function for setting the size of the drawing in mm and
 correct management of label printing

---
 wrap/qt/PolyToQImage.cpp | 11 +++++++----
 wrap/qt/PolyToQImage.h   | 31 ++++++++++++++++++++++---------
 2 files changed, 29 insertions(+), 13 deletions(-)

diff --git a/wrap/qt/PolyToQImage.cpp b/wrap/qt/PolyToQImage.cpp
index 7ecd377d..1deee27c 100644
--- a/wrap/qt/PolyToQImage.cpp
+++ b/wrap/qt/PolyToQImage.cpp
@@ -285,7 +285,7 @@ void  PolyDumper::dumpPolySetPNG(const char * imageName,
 		painter.resetTransform();
 		painter.translate(trVec[i].tra[0],trVec[i].tra[1]);
 
-		painter.drawText(bc[0]-radius,bc[1]-radius,radius*2,radius*2,Qt::AlignHCenter|Qt::AlignCenter,QString("ii"));
+		painter.drawText(bc[0]-radius,bc[1]-radius,radius*2,radius*2,Qt::AlignHCenter|Qt::AlignCenter,QString(labelVec[i].c_str()));
 	}
 	painter.end();
 	img.save(imageName);
@@ -302,8 +302,11 @@ void PolyDumper::dumpPolySetSVG(const char * imageName,
 {
 	assert(polyVecVec.size() == trVec.size());
 
+
 	///SET THE FONT
-	int fontSize=ceil(std::max(pp.width,pp.height)/100.0);
+	int fontSize;
+	if(pp.fontSize==0) fontSize=ceil(std::max(pp.width,pp.height)/100.0);
+	else fontSize=pp.fontSize;
 	QFont qf("courier",fontSize);
 	QSvgGenerator svg;
 	svg.setFileName(imageName);
@@ -311,7 +314,7 @@ void PolyDumper::dumpPolySetSVG(const char * imageName,
 	///SET THE DRAWING SIZE
 	svg.setSize(QSize(pp.width,pp.height));
 	svg.setViewBox(QRect(0, 0, pp.width,pp.height));
-	svg.setResolution(pp.dpi);//
+	svg.setResolution(int(pp.dpi));//
 
 	///SETUP OF DRAWING PROCEDURE
 	QPainter painter;
@@ -364,7 +367,7 @@ void PolyDumper::dumpPolySetSVG(const char * imageName,
 		painter.setFont(qf);
 		painter.resetTransform();
 		painter.translate(trVec[i].tra[0],trVec[i].tra[1]);
-		painter.drawText(bc[0]-radius,bc[1]-radius,radius*2,radius*2,Qt::AlignHCenter|Qt::AlignCenter,QString("ii"));
+		painter.drawText(bc[0]-radius,bc[1]-radius,radius*2,radius*2,Qt::AlignHCenter|Qt::AlignCenter,QString(labelVec[i].c_str()));
 	}
 	painter.end();
 }
diff --git a/wrap/qt/PolyToQImage.h b/wrap/qt/PolyToQImage.h
index ba00b23c..69eb2657 100644
--- a/wrap/qt/PolyToQImage.h
+++ b/wrap/qt/PolyToQImage.h
@@ -13,28 +13,41 @@
 class PolyDumperParam
 {
 public:
-	///the backgrround color
+	/// the backgrround color
 	vcg::Color4b backgroundColor;
-	///true if the polygons must be filled with color
+	/// true if the polygons must be filled with color
 	bool fill;
-	///true if the filling color is random
+	/// true if the filling color is random
 	bool randomColor;
-	///the filling color of polygons, used only if randomColor==false
+	/// the filling color of polygons, used only if randomColor==false
 	vcg::Color4b FillColor;
-	
-	///dimension of the image (in PNG are pixels, while in SV is the workspace in points)
+	/// The size of the font. If zero (default) it is automatically chosen.
+	int fontSize;
+	/// dimension of the image (in PNG are pixels, while in SVG is the workspace in points)
 	int width;
 	int height;
-	///DPi resolution, used only for SVG
+
+	/// DPI resolution, used only for SVG
 	int dpi;
-	
-	///default contructor
+
+	///Handy function for setting the size of the drawing
+	void SetSVGDimInMm(float widthMM,float heightMM,float _dpi=72)
+	{
+	  dpi=_dpi;
+	  float widthInch = float(widthMM / 25.4f);
+	  float heightInch = float(heightMM / 25.4f);
+	  width = widthInch * _dpi;
+	  height = heightInch * _dpi;
+	}
+
+	///default constructor
 	PolyDumperParam()
 	{
 		backgroundColor = vcg::Color4b::Gray;
 		width=1024;
 		height=1024;
 		dpi=72;
+		fontSize=0;
 		fill=false;
 		randomColor=true;
 		FillColor=vcg::Color4b(0,0,0,255);