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docs: update documents

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This commit is contained in:
vicanso 2022-06-22 21:04:16 +08:00
parent 92458aece2
commit 706896737b
18 changed files with 83 additions and 18 deletions
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4
legend.go
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@ -36,6 +36,7 @@ const IconRect = "rect"
const IconLineDot = "lineDot"
type LegendOption struct {
// The theme
Theme ColorPalette
// Text array of legend
Data []string
@ -60,6 +61,7 @@ type LegendOption struct {
Show *bool
}
// NewLegendOption returns a legend option
func NewLegendOption(labels []string, left ...string) LegendOption {
opt := LegendOption{
Data: labels,
@ -70,6 +72,7 @@ func NewLegendOption(labels []string, left ...string) LegendOption {
return opt
}
// IsEmpty checks legend is empty
func (opt *LegendOption) IsEmpty() bool {
isEmpty := true
for _, v := range opt.Data {
@ -81,6 +84,7 @@ func (opt *LegendOption) IsEmpty() bool {
return isEmpty
}
// NewLegendPainter returns a legend renderer
func NewLegendPainter(p *Painter, opt LegendOption) *legendPainter {
return &legendPainter{
p: p,