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105 lines
2.3 KiB
Go
105 lines
2.3 KiB
Go
package cointop
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import (
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"fmt"
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"sort"
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"github.com/miguelmota/cointop/cointop/common/pad"
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)
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// HelpView is structure for help view
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type HelpView struct {
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*View
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}
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// NewHelpView returns a new help view
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func NewHelpView() *HelpView {
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return &HelpView{NewView("help")}
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}
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func (ct *Cointop) updateHelp() {
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ct.debuglog("updateHelp()")
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keys := make([]string, 0, len(ct.State.shortcutKeys))
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for k := range ct.State.shortcutKeys {
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keys = append(keys, k)
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}
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sort.Strings(keys)
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header := ct.colorscheme.MenuHeader(fmt.Sprintf(" Help %s\n\n", pad.Left("[q] close ", ct.maxTableWidth-10, " ")))
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cnt := 0
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h := ct.Views.Help.Height()
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percol := h - 6
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cols := make([][]string, percol)
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for i := range cols {
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cols[i] = make([]string, 20)
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}
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for _, k := range keys {
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v := ct.State.shortcutKeys[k]
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if cnt%percol == 0 {
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cnt = 0
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}
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item := fmt.Sprintf("%10s %-40s", k, ct.colorscheme.MenuLabel(v))
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cols[cnt] = append(cols[cnt], item)
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cnt = cnt + 1
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}
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var body string
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for i := 0; i < percol; i++ {
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var row string
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for j := 0; j < len(cols[i]); j++ {
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item := cols[i][j]
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row = fmt.Sprintf("%s%s", row, item)
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}
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body = fmt.Sprintf("%s%s\n", body, row)
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}
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body = fmt.Sprintf("%s\n", body)
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infoline := " List of keyboard shortcuts\n\n"
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versionline := pad.Left(fmt.Sprintf("v%s", ct.Version()), ct.maxTableWidth-5, " ")
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content := header + infoline + body + versionline
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ct.Update(func() {
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if ct.Views.Help.Backing() == nil {
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return
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}
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ct.Views.Help.Backing().Clear()
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ct.Views.Help.Backing().Frame = true
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fmt.Fprintln(ct.Views.Help.Backing(), content)
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})
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}
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func (ct *Cointop) showHelp() error {
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ct.debuglog("showHelp()")
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ct.State.helpVisible = true
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ct.updateHelp()
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ct.SetActiveView(ct.Views.Help.Name())
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return nil
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}
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func (ct *Cointop) hideHelp() error {
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ct.debuglog("hideHelp()")
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ct.State.helpVisible = false
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ct.SetViewOnBottom(ct.Views.Help.Name())
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ct.SetActiveView(ct.Views.Table.Name())
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ct.Update(func() {
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if ct.Views.Help.Backing() == nil {
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return
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}
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ct.Views.Help.Backing().Clear()
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ct.Views.Help.Backing().Frame = false
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fmt.Fprintln(ct.Views.Help.Backing(), "")
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})
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return nil
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}
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func (ct *Cointop) toggleHelp() error {
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ct.debuglog("toggleHelp()")
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ct.State.helpVisible = !ct.State.helpVisible
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if ct.State.helpVisible {
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return ct.showHelp()
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}
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return ct.hideHelp()
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}
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