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Use actual color.Colors, fix inverse_lightness, enums for Visibility

This commit is contained in:
Jason Hall 2014-10-21 13:58:39 -04:00
parent b4ad65e7f2
commit e2fe08ba0b
2 changed files with 52 additions and 38 deletions

View file

@ -1,6 +1,7 @@
package maps
import (
"image/color"
"testing"
"time"
)
@ -29,14 +30,14 @@ func TestStaticMap(t *testing.T) {
Markers: []Markers{
{
Size: "small",
Color: "blue",
Color: color.Black,
Locations: []Location{
LatLng{1, 1},
LatLng{2, 2},
},
}, {
Size: "mid",
Color: "red",
Color: color.White,
Locations: []Location{
LatLng{3, 3},
},
@ -45,14 +46,14 @@ func TestStaticMap(t *testing.T) {
Paths: []Path{
{
Weight: 10,
Color: "green",
Color: color.Black,
Locations: []Location{
LatLng{4, 4},
LatLng{5, 5},
},
}, {
Color: "0x00000000",
FillColor: "0x00000033",
Color: color.Black,
FillColor: color.White,
Locations: []Location{
LatLng{6, 6}, LatLng{7, 7}, LatLng{7, 3},
},
@ -66,7 +67,7 @@ func TestStaticMap(t *testing.T) {
Feature: "water",
Element: "geometry.fill",
Rules: []StyleRule{
{Hue: "0x0000FF"},
{Hue: color.White, Saturation: -100.0},
},
},
},

View file

@ -2,6 +2,7 @@ package maps
import (
"fmt"
"image/color"
"io"
"net/http"
"net/url"
@ -35,6 +36,13 @@ const (
SizeMid = "mid"
// SizeLarge requests a large-sized marker.
SizeLarge = "large"
// VisibilityOn requests that the feature be shown.
VisibilityOn = "on"
// VisibilityOff requests that the feature not be shown.
VisibilityOff = "off"
// VisibilitySimplified requests that the feature be shown in a simplified manner.
VisibilitySimplified = "simplified"
)
// StaticMap requests a static map image of a requested size.
@ -133,10 +141,10 @@ type Markers struct {
// Accepted values are SizeTiny, SizeMid (the default) and SizeLarge.
Size string // tiny, mid, small
// Color defines the 24-bit color of the marker(s), specified as a hex string such as "#FF0033"
// Color defines the color of the marker(s).
//
// Predefined color names are also accepted: "black", "brown", "green", "purple", "yellow", "blue", "gray", "orange", "red" and "white".
Color string
// The alpha value of this color is ignored.
Color color.Color
// Label specifies a single uppercase alphanumeric character to place inside the marker image.
Label string
@ -151,13 +159,23 @@ type Markers struct {
Locations []Location
}
func rgb(c color.Color) string {
r, g, b, _ := c.RGBA()
return fmt.Sprintf("0x%02X%02X%02X", r>>8, g>>8, b>>8)
}
func rgba(c color.Color) string {
r, g, b, a := c.RGBA()
return fmt.Sprintf("0x%02X%02X%02X%02X", r>>8, g>>8, b>>8, a>>8)
}
func (m Markers) encode() string {
s := []string{}
if m.Size != "" {
s = append(s, "size:"+m.Size)
}
if m.Color != "" {
s = append(s, "color:"+m.Color)
if m.Color != nil {
s = append(s, "color:"+rgb(m.Color))
}
if m.Label != "" {
s = append(s, "label:"+m.Label)
@ -180,17 +198,11 @@ type Path struct {
// Weight specifies the thickness of the path in pixels. If no weight is specified, the default is 5 pixels.
Weight int
// Color defines the 24-bit color or 32-bit (with transparency) of the path, specified as a hex string such as "#FF0033" or "#FF0033CC"
//
// Predefined color names are also accepted: "black", "brown", "green", "purple", "yellow", "blue", "gray", "orange", "red" and "white".
Color string
// Color defines the color of the path.
Color color.Color
// Color defines the 24-bit color or 32-bit (with transparency) to fill the area of the path, specified as a hex string such as "#FF0033" or "#FF0033CC"
//
// The set of locations do not need to represent a "closed" loop; the server will automatically join the first and last points.
//
// Predefined color names are also accepted: "black", "brown", "green", "purple", "yellow", "blue", "gray", "orange", "red" and "white".
FillColor string
// FillColor defines the color to fill the area of the path.
FillColor color.Color
// Geodesic, if true, indicates that the requested path should be interpreted as a geodesic line that follows the curvature of the earth.
//
@ -209,11 +221,11 @@ func (p Path) encode() string {
if p.Weight != 0 {
s = append(s, fmt.Sprintf("weight:%d", p.Weight))
}
if p.Color != "" {
s = append(s, "color:"+p.Color)
if p.Color != nil {
s = append(s, "color:"+rgba(p.Color))
}
if p.FillColor != "" {
s = append(s, "fillcolor:"+p.FillColor)
if p.FillColor != nil {
s = append(s, "fillcolor:"+rgba(p.FillColor))
}
if p.Geodesic {
s = append(s, "geodesic:true")
@ -260,33 +272,34 @@ func (t Style) encode() string {
// StyleRule defines a style rule to apply to the map.
type StyleRule struct {
// Hue is the hue value, as a hex string (e.g., "#FF00EE") to apply to the selection.
Hue string // rgb color
// Hue is the hue value to apply to the selection.
//
// Note that while this takes a color value, it only uses this value to determine the basic color (its orientation around the color wheel),
// not its saturation or lightness, which are indicated separately as percentage changes.
Hue color.Color
// Lightness (a value between -100 and 100) indicates the percentage change in brightness of the element. -100 is black, 100 is white.
Lightness float64
// Saturation (a value between -100 and 100) indicates the percentage change in intensity of the basic color to apply to the element.
Saturation float64 // -100 to 100
Saturation float64
// Gamma (a value between 0.01 and 10.0, where 1.0 applies no correction) indicates the amount of gamma correction to apply to the element.
Gamma *float64 // .01 to 10, default 1
// InverseLightness, if specified and true, inverts the Lightness value.
InverseLightness *bool
// InverseLightness, if true, inverts the Lightness value.
InverseLightness bool
// Visibility indicates whether and how the element appears on the map.
//
// A value of "simplified" indicates that the map should simplify the presentation of those elements as it sees fit.
//
// Accepted values are "on", "off" and "simplified"
Visibility string // TODO: enum
// Accepted values are VisibilityOn (the default), VisibilityOff and VisibilitySimplified.
Visibility string
}
func (r StyleRule) encode() string {
s := []string{}
if r.Hue != "" {
s = append(s, "hue:"+r.Hue)
if r.Hue != nil {
s = append(s, "hue:"+rgb(r.Hue))
}
if r.Lightness != 0 {
s = append(s, fmt.Sprintf("lightness:%f", r.Lightness))
@ -297,8 +310,8 @@ func (r StyleRule) encode() string {
if r.Gamma != nil {
s = append(s, fmt.Sprintf("gamma:%f", *r.Gamma))
}
if r.InverseLightness != nil && *r.InverseLightness == false {
s = append(s, "inverse_lightness:false")
if r.InverseLightness {
s = append(s, "inverse_lightness:true")
}
if r.Visibility != "" {
s = append(s, "visibility:"+r.Visibility)