From 936c634e15265fb3c7239e07c71fc3c6ac027d98 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Richard=20St=C3=B6ckl?= <richard.stoeckl@aon.at>
Date: Wed, 28 Aug 2019 17:10:23 +0200
Subject: added SVG support for quadratic curves

---
 svgbasic.go | 14 +++++++++++++-
 svgwrite.go |  5 +++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/svgbasic.go b/svgbasic.go
index 6900afa..0eea754 100644
--- a/svgbasic.go
+++ b/svgbasic.go
@@ -33,7 +33,8 @@ func init() {
 		"C", " C ", "c", " c ",
 		"M", " M ", "m", " m ",
 		"H", " H ", "h", " h ",
-		"V", " V ", "v", " v ")
+		"V", " V ", "v", " v ",
+		"Q", " Q ", "q", " q ", )
 }
 
 // SVGBasicSegmentType describes a single curve or position segment
@@ -81,6 +82,15 @@ func absolutizePath(segs []SVGBasicSegmentType) {
 			segPtr.Cmd = 'C'
 			x = segPtr.Arg[4]
 			y = segPtr.Arg[5]
+		case 'Q':
+			x = seg.Arg[2]
+			y = seg.Arg[3]
+		case 'q':
+			adjust(0, x, y)
+			adjust(2, x, y)
+			segPtr.Cmd = 'Q'
+			x = segPtr.Arg[2]
+			y = segPtr.Arg[3]
 		case 'H':
 			x = seg.Arg[0]
 		case 'h':
@@ -146,6 +156,8 @@ func pathParse(pathStr string) (segs []SVGBasicSegmentType, err error) {
 					setup(1)
 				case 'L', 'l': // Absolute/relative lineto: x, y
 					setup(2)
+				case 'Q', 'q': // Absolute/relative quadratic curve: x0, y0, x1, y1
+					setup(4)
 				case 'V', 'v': // Absolute/relative vertical line to: x
 					setup(1)
 				case 'Z', 'z': // closepath instruction (takes no arguments)
diff --git a/svgwrite.go b/svgwrite.go
index a612539..d438393 100644
--- a/svgwrite.go
+++ b/svgwrite.go
@@ -59,6 +59,11 @@ func (f *Fpdf) SVGBasicWrite(sb *SVGBasicType, scale float64) {
 				newX, newY = val(4)
 				f.CurveCubic(x, y, cx0, cy0, newX, newY, cx1, cy1, "D")
 				x, y = newX, newY
+			case 'Q':
+				cx0, cy0 = val(0)
+				newX, newY = val(2)
+				f.Curve(x, y, cx0, cy0, newX, newY, "D")
+				x, y = newX, newY
 			case 'H':
 				newX = xval(0)
 				f.Line(x, y, newX, y)
-- 
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