example_test.go

package svgparser_test

import (
	"fmt"
	"strings"

	"github.com/JoshVarga/svgparser"
	"github.com/JoshVarga/svgparser/utils"
)

func ExampleParse() {
	svg := `
		<svg width="100" height="100">
			<circle cx="50" cy="50" r="40" fill="red" />
		</svg>
	`
	reader := strings.NewReader(svg)

	element, _ := svgparser.Parse(reader, false)

	fmt.Printf("SVG width: %s\n", element.Attributes["width"])
	fmt.Printf("Circle fill: %s", element.Children[0].Attributes["fill"])

	// Output:
	// SVG width: 100
	// Circle fill: red
}

func ExampleValidate() {
	svg := `
		<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" id="svg-root" width="100%" height="100%">
			<desc id="test-desc">Test validation</desc>
		</svg>
	`
	reader := strings.NewReader(svg)

	element, _ := svgparser.Parse(reader, true)

	fmt.Printf("Desc content: %+v\n", element.FindAll("desc")[0].Content)

	// Output:
	// Desc content: Test validation
}

func ExampleElement_FindAll() {
	svg := `
		<svg width="1000" height="600">
			<rect fill="#000" width="5" height="3"/>
			<rect fill="#444" width="5" height="2" y="1"/>
			<rect fill="#888" width="5" height="1" y="2"/>
		</svg>
	`
	reader := strings.NewReader(svg)
	element, _ := svgparser.Parse(reader, false)

	rectangles := element.FindAll("rect")

	fmt.Printf("First child fill: %s\n", rectangles[0].Attributes["fill"])
	fmt.Printf("Second child height: %s", rectangles[1].Attributes["height"])

	// Output:
	// First child fill: #000
	// Second child height: 2
}

func ExampleElement_FindID() {
	svg := `
		<svg width="1000" height="600">
			<rect id="black" fill="#000" width="5" height="3"/>
			<rect id="gray" fill="#888" width="5" height="2" y="1"/>
			<rect id="white" fill="#fff" width="5" height="1" y="2"/>
		</svg>
	`
	reader := strings.NewReader(svg)
	element, _ := svgparser.Parse(reader, false)

	white := element.FindID("white")

	fmt.Printf("White rect fill: %s", white.Attributes["fill"])

	// Output:
	// White rect fill: #fff
}

func ExamplePathParser() {
	d := "M50,50 A30,30 0 0,1 35,20 L100,100 M110,110 L100,0"
	path, _ := utils.PathParser(d)

	fmt.Printf("Number of subpaths: %d\n", len(path.Subpaths))
	for i, subpath := range path.Subpaths {
		fmt.Printf("Path %d: ", i)
		for j, command := range subpath.Commands {
			if j+1 == len(subpath.Commands) {
				fmt.Printf("%v\n", command)
			} else {
				fmt.Printf("%v -> ", command)
			}
		}
	}

	// Output:
	// Number of subpaths: 2
	// Path 0: &{M [50 50]} -> &{A [30 30 0 0 1 35 20]} -> &{L [100 100]}
	// Path 1: &{M [110 110]} -> &{L [100 0]}
}