From 6cb43ab4ade2d2e1cb2f9b1393280cb68b7212f9 Mon Sep 17 00:00:00 2001
From: Jeff Schiller <codedread@gmail.com>
Date: Fri, 9 Oct 2009 17:02:21 +0000
Subject: [PATCH] Implement a convertToD() function to help solve Webkit path
 problems

git-svn-id: http://svg-edit.googlecode.com/svn/trunk@787 eee81c28-f429-11dd-99c0-75d572ba1ddd
---
 editor/svgcanvas.js | 76 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)

diff --git a/editor/svgcanvas.js b/editor/svgcanvas.js
index d6fc0b0f..d36bd553 100644
--- a/editor/svgcanvas.js
+++ b/editor/svgcanvas.js
@@ -2024,6 +2024,80 @@ function BatchCommand(text) {
 		}
 	};
 
+	var convertToD = function(segList) {
+		var len = segList.numberOfItems;
+		var curx = 0, cury = 0;
+		var d = "";
+		for (var i = 0; i < len; ++i) {
+			var seg = segList.getItem(i);
+			// if these properties are not in the segment, set them to zero
+			var x = seg.x || 0,
+				y = seg.y || 0,
+				x1 = seg.x1 || 0,
+				y1 = seg.y1 || 0,
+				x2 = seg.x2 || 0,
+				y2 = seg.y2 || 0;
+
+			var type = seg.pathSegType;
+			switch (type) {
+				case 1: // z,Z closepath (Z/z)
+					d += "z";
+					break;
+				case 2: // absolute move (M)
+				case 4: // absolute line (L)
+				case 12: // absolute horizontal line (H)
+				case 14: // absolute vertical line (V)
+				case 18: // absolute smooth quad (T)
+					x -= curx;
+					y -= cury;
+				case 3: // relative move (m)
+				case 5: // relative line (l)
+				case 13: // relative horizontal line (h)
+				case 15: // relative vertical line (v)
+				case 19: // relative smooth quad (t)
+					curx += x;
+					cury += y;
+					d += [" ", pathMap[type], x, ",", y].join('');
+					break;
+				case 6: // absolute cubic (C)
+					x -= curx; x1 -= curx; x2 -= curx;
+					y -= cury; y1 -= cury; y2 -= cury;
+				case 7: // relative cubic (c)
+					curx += x;
+					cury += y;
+					d += [" c", x1, ",", y1, " ", x2, ",", y2, " ", x, ",", y].join('');
+					break;
+				case 8: // absolute quad (Q)
+					x -= curx; x1 -= curx;
+					y -= cury; y1 -= cury;
+				case 9: // relative quad (q) 
+					curx += x;
+					cury += y;
+					d += [" q", x1, ",", y1, " ", x, ",", y].join('');
+					break;
+				case 10: // absolute elliptical arc (A)
+					x -= curx;
+					y -= cury;
+				case 11: // relative elliptical arc (a)
+					curx += x;
+					cury += y;
+					d += [ "a", seg.r1, ",", seg.r2, " ", seg.angle, " ", 
+							(seg.largeArcFlag ? 1 : 0), " ", (seg.sweepFlag ? 1 : 0), " ", 
+							x, ",", y ].join('')
+					break;
+				case 16: // absolute smooth cubic (S)
+					x -= curx; x2 -= curx;
+					y -= cury; y2 -= cury;
+				case 17: // relative smooth cubic (s)
+					curx += x;
+					cury += y;
+					d += [" s", x2, ",", y2, " ", x, ",", y].join('');
+					break;
+			} // switch on path segment type
+		} // for each segment
+		return d;
+	};
+	
 	var resetPointGrips = function() {
 		var sr = svgroot.suspendRedraw(100);
 		removeAllPointGripsFromPoly();
@@ -2377,6 +2451,8 @@ function BatchCommand(text) {
 		var poly = current_poly, func = 'createSVGPathSeg' + pathFuncs[type];
 		var seg = poly[func].apply(poly, pts);
 		poly.pathSegList.replaceItem(seg, index);
+		// Fyrd: here's where i think it needs to be used
+//		poly.setAttribute("d", convertToD(poly.pathSegList));
 	}
 	
 	var addControlPointGrip = function(x, y, source_x, source_y, id, raw_val) {