mirror of
https://github.com/VladimirMarkelov/clui.git
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efa32413a4
It seems beneficial the callback to also know the event.Ch so we can implement more "sophisticated" field filling validation strategies.
143 lines
3.7 KiB
Go
143 lines
3.7 KiB
Go
/*
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Demo includes:
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- How to intialize and run the application
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- How to stop the application
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- How to use Control's events (Button ones)
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- How to change theme on the fly
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- How to use dialogs
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- How to make composer refresh the screen
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- How to intercept Enter key(term.KeyCtrlM) in EditField(ListBox is the same)
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*/
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package main
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import (
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"fmt"
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ui "github.com/VladimirMarkelov/clui"
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term "github.com/nsf/termbox-go"
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"strconv"
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)
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func updateProgress(value string, pb *ui.ProgressBar) {
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v, _ := strconv.Atoi(value)
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pb.SetValue(v)
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}
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func changeTheme(lb *ui.ListBox, btn *ui.Button, tp int) {
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items := ui.ThemeNames()
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dlgType := ui.SelectDialogRadio
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if tp == 1 {
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dlgType = ui.SelectDialogList
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}
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curr := -1
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for i, tName := range items {
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if tName == ui.CurrentTheme() {
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curr = i
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break
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}
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}
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selDlg := ui.CreateSelectDialog("Choose a theme", items, curr, dlgType)
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selDlg.OnClose(func() {
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switch selDlg.Result() {
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case ui.DialogButton1:
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idx := selDlg.Value()
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lb.AddItem(fmt.Sprintf("Selected item: %v", selDlg.Value()))
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lb.SelectItem(lb.ItemCount() - 1)
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if idx != -1 {
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ui.SetCurrentTheme(items[idx])
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}
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}
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btn.SetEnabled(true)
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// ask the composer to repaint all windows
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ui.PutEvent(ui.Event{Type: ui.EventRedraw})
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})
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}
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func createView() {
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view := ui.AddWindow(0, 0, 20, 7, "Theme Manager Demo")
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frmLeft := ui.CreateFrame(view, 8, 4, ui.BorderNone, 1)
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frmLeft.SetPack(ui.Vertical)
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frmLeft.SetGaps(ui.KeepValue, 1)
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frmLeft.SetPaddings(1, 1)
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frmTheme := ui.CreateFrame(frmLeft, 8, 1, ui.BorderNone, ui.Fixed)
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frmTheme.SetGaps(1, ui.KeepValue)
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checkBox := ui.CreateCheckBox(frmTheme, ui.AutoSize, "Use ListBox", ui.Fixed)
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btnTheme := ui.CreateButton(frmTheme, ui.AutoSize, 4, "Select theme", ui.Fixed)
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ui.CreateFrame(frmLeft, 1, 1, ui.BorderNone, 1)
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frmPb := ui.CreateFrame(frmLeft, 8, 1, ui.BorderNone, ui.Fixed)
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ui.CreateLabel(frmPb, 1, 1, "[", ui.Fixed)
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pb := ui.CreateProgressBar(frmPb, 20, 1, 1)
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pb.SetLimits(0, 10)
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pb.SetTitle("{{value}} of {{max}}")
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ui.CreateLabel(frmPb, 1, 1, "]", ui.Fixed)
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edit := ui.CreateEditField(frmLeft, 5, "0", ui.Fixed)
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frmEdit := ui.CreateFrame(frmLeft, 8, 1, ui.BorderNone, ui.Fixed)
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frmEdit.SetPaddings(1, 1)
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frmEdit.SetGaps(1, ui.KeepValue)
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btnSet := ui.CreateButton(frmEdit, ui.AutoSize, 4, "Set", ui.Fixed)
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btnStep := ui.CreateButton(frmEdit, ui.AutoSize, 4, "Step", ui.Fixed)
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ui.CreateFrame(frmEdit, 1, 1, ui.BorderNone, 1)
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btnQuit := ui.CreateButton(frmEdit, ui.AutoSize, 4, "Quit", ui.Fixed)
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logBox := ui.CreateListBox(view, 28, 5, ui.Fixed)
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ui.ActivateControl(view, edit)
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edit.OnKeyPress(func(key term.Key, ch rune) bool {
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if key == term.KeyCtrlM {
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v := edit.Title()
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logBox.AddItem(fmt.Sprintf("New PB value(KeyPress): %v", v))
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logBox.SelectItem(logBox.ItemCount() - 1)
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updateProgress(v, pb)
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return true
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}
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return false
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})
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btnTheme.OnClick(func(ev ui.Event) {
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btnTheme.SetEnabled(false)
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tp := checkBox.State()
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changeTheme(logBox, btnTheme, tp)
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})
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btnSet.OnClick(func(ev ui.Event) {
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v := edit.Title()
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logBox.AddItem(fmt.Sprintf("New ProgressBar value: %v", v))
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logBox.SelectItem(logBox.ItemCount() - 1)
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updateProgress(v, pb)
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})
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btnStep.OnClick(func(ev ui.Event) {
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go pb.Step()
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logBox.AddItem("ProgressBar step")
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logBox.SelectItem(logBox.ItemCount() - 1)
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ui.PutEvent(ui.Event{Type: ui.EventRedraw})
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})
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btnQuit.OnClick(func(ev ui.Event) {
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go ui.Stop()
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})
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}
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func mainLoop() {
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// Every application must create a single Composer and
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// call its intialize method
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ui.InitLibrary()
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defer ui.DeinitLibrary()
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ui.SetThemePath("themes")
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createView()
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// start event processing loop - the main core of the library
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ui.MainLoop()
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}
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func main() {
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mainLoop()
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}
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