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81 lines
1.5 KiB
Go
81 lines
1.5 KiB
Go
package widgets
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type HistData struct {
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maxLen int
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labels []string
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}
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func NewHistData(max int) HistData {
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return HistData{
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maxLen: max,
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labels: make([]string, max),
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}
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}
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type IntHistData struct {
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HistData
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data []int
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}
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func NewIntHistData(max int) IntHistData {
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return IntHistData{NewHistData(max), make([]int, max)}
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}
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func (h IntHistData) Append(val int) {
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if len(h.data) >= h.maxLen {
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h.data = append(h.data[:0], h.data[1:]...)
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}
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h.data = append(h.data, val)
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}
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type FloatHistData struct {
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HistData
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data []float64
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}
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func NewFloatHistData(max int) FloatHistData {
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return FloatHistData{NewHistData(max), make([]float64, max)}
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}
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func (h FloatHistData) Append(val float64) {
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if len(h.data) >= h.maxLen {
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h.data = append(h.data[:0], h.data[1:]...)
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}
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h.data = append(h.data, val)
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}
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type DiffHistData struct {
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HistData
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data []int
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srcData []int
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}
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func NewDiffHistData(max int) DiffHistData {
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return DiffHistData{
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NewHistData(max),
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make([]int, max),
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make([]int, max),
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}
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}
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// return most recent value
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func (h DiffHistData) Last() int {
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return h.data[len(h.data)-1]
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}
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func (h DiffHistData) Append(val int) {
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if len(h.data) >= h.maxLen {
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h.data = append(h.data[:0], h.data[1:]...)
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}
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if len(h.srcData) >= h.maxLen {
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h.srcData = append(h.srcData[:0], h.srcData[1:]...)
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}
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diff := val - h.srcData[len(h.srcData)-1]
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if diff != val { // skip adding to data if this is the initial update
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h.data = append(h.data, diff)
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}
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h.srcData = append(h.srcData, val)
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}
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