1 files changed, 125 insertions, 0 deletions
diff --git a/vendor/github.com/felix/go-staticmaps/marker.go b/vendor/github.com/felix/go-staticmaps/marker.go
new file mode 100644
index 0000000..6e88984
--- /dev/null
+++ b/vendor/github.com/felix/go-staticmaps/marker.go
@@ -0,0 +1,125 @@
+// Copyright 2016 Florian Pigorsch. All rights reserved.
+//
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package sm
+
+import (
+	"fmt"
+	"image/color"
+	"math"
+	"strconv"
+	"strings"
+
+	"github.com/flopp/go-coordsparser"
+	"github.com/fogleman/gg"
+	"github.com/golang/geo/s2"
+)
+
+// Marker represents a marker on the map
+type Marker struct {
+	MapObject
+	Position s2.LatLng
+	Color    color.Color
+	Size     float64
+	Label    string
+}
+
+// NewMarker creates a new Marker
+func NewMarker(pos s2.LatLng, col color.Color, size float64) *Marker {
+	m := new(Marker)
+	m.Position = pos
+	m.Color = col
+	m.Size = size
+	m.Label = ""
+	return m
+}
+
+func parseSizeString(s string) (float64, error) {
+	switch {
+	case s == "mid":
+		return 16.0, nil
+	case s == "small":
+		return 12.0, nil
+	case s == "tiny":
+		return 8.0, nil
+	}
+
+	if ss, err := strconv.ParseFloat(s, 64); err != nil && ss > 0 {
+		return ss, nil
+	}
+
+	return 0.0, fmt.Errorf("Cannot parse size string: %s", s)
+}
+
+// ParseMarkerString parses a string and returns an array of markers
+func ParseMarkerString(s string) ([]*Marker, error) {
+	markers := make([]*Marker, 0, 0)
+
+	var color color.Color = color.RGBA{0xff, 0, 0, 0xff}
+	size := 16.0
+	label := ""
+
+	for _, ss := range strings.Split(s, "|") {
+		if ok, suffix := hasPrefix(ss, "color:"); ok {
+			var err error
+			color, err = ParseColorString(suffix)
+			if err != nil {
+				return nil, err
+			}
+		} else if ok, suffix := hasPrefix(ss, "label:"); ok {
+			label = suffix
+		} else if ok, suffix := hasPrefix(ss, "size:"); ok {
+			var err error
+			size, err = parseSizeString(suffix)
+			if err != nil {
+				return nil, err
+			}
+		} else {
+			lat, lng, err := coordsparser.Parse(ss)
+			if err != nil {
+				return nil, err
+			}
+			m := NewMarker(s2.LatLngFromDegrees(lat, lng), color, size)
+			m.Label = label
+			markers = append(markers, m)
+		}
+	}
+	return markers, nil
+}
+
+func (m *Marker) extraMarginPixels() float64 {
+	return 1.0 + 1.5*m.Size
+}
+
+func (m *Marker) bounds() s2.Rect {
+	r := s2.EmptyRect()
+	r = r.AddPoint(m.Position)
+	return r
+}
+
+func (m *Marker) draw(gc *gg.Context, trans *transformer) {
+	gc.ClearPath()
+	gc.SetLineJoin(gg.LineJoinRound)
+	gc.SetLineWidth(1.0)
+
+	radius := 0.5 * m.Size
+	x, y := trans.ll2p(m.Position)
+	gc.DrawArc(x, y-m.Size, radius, (90.0+60.0)*math.Pi/180.0, (360.0+90.0-60.0)*math.Pi/180.0)
+	gc.LineTo(x, y)
+	gc.ClosePath()
+	gc.SetColor(m.Color)
+	gc.FillPreserve()
+	gc.SetRGB(0, 0, 0)
+	gc.Stroke()
+
+	if m.Label != "" {
+		if Luminance(m.Color) >= 0.5 {
+			gc.SetColor(color.RGBA{0x00, 0x00, 0x00, 0xff})
+		} else {
+			gc.SetColor(color.RGBA{0xff, 0xff, 0xff, 0xff})
+		}
+		gc.DrawStringAnchored(m.Label, x, y-m.Size, 0.5, 0.5)
+	}
+}