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move menu widget into subpackage

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This commit is contained in:
Bradley Cicenas 2017-01-04 23:13:17 +00:00
parent c9a207ebfd
commit 222a030e0b
2 changed files with 83 additions and 73 deletions
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38
menus.go Normal file
View File

@ -0,0 +1,38 @@
package main
import (
"github.com/bcicen/ctop/widgets"
ui "github.com/gizak/termui"
)
var helpDialog = []string{
"[h] - open this help dialog",
"[q] - exit ctop",
}
func HelpMenu(g *Grid) {
m := widgets.NewMenu(helpDialog)
m.TextFgColor = ui.ColorWhite
m.BorderLabel = "Help"
m.BorderFg = ui.ColorCyan
ui.Render(m)
ui.Handle("/sys/kbd/", func(ui.Event) {
ui.StopLoop()
})
ui.Loop()
}
func SortMenu(g *Grid) {
m := widgets.NewMenu(SortFields)
m.Selectable = true
m.TextFgColor = ui.ColorWhite
m.BorderLabel = "Sort Field"
m.BorderFg = ui.ColorCyan
ui.Render(m)
m.NavigationHandlers()
ui.Handle("/sys/kbd/<enter>", func(ui.Event) {
g.containerMap.config.sortField = m.Items[m.CursorPos]
ui.StopLoop()
})
ui.Loop()
}

118
menu.go → widgets/menu.go
View File

@ -1,4 +1,4 @@
package main
package widgets
import (
ui "github.com/gizak/termui"
@ -15,7 +15,7 @@ type Menu struct {
TextFgColor ui.Attribute
TextBgColor ui.Attribute
Selectable bool
cursorPos int
CursorPos int
}
func NewMenu(items []string) *Menu {
@ -25,12 +25,54 @@ func NewMenu(items []string) *Menu {
TextFgColor: ui.ThemeAttr("par.text.fg"),
TextBgColor: ui.ThemeAttr("par.text.bg"),
Selectable: false,
cursorPos: 0,
CursorPos: 0,
}
m.Width, m.Height = calcSize(items)
return m
}
func (m *Menu) Buffer() ui.Buffer {
var cell ui.Cell
buf := m.Block.Buffer()
for n, item := range m.Items {
x := padding
for _, ch := range item {
// invert bg/fg colors on currently selected row
if m.Selectable && n == m.CursorPos {
cell = ui.Cell{Ch: ch, Fg: m.TextBgColor, Bg: m.TextFgColor}
} else {
cell = ui.Cell{Ch: ch, Fg: m.TextFgColor, Bg: m.TextBgColor}
}
buf.Set(x, n+padding, cell)
x++
}
}
return buf
}
func (m *Menu) Up(ui.Event) {
if m.CursorPos > 0 {
m.CursorPos--
ui.Render(m)
}
}
func (m *Menu) Down(ui.Event) {
if m.CursorPos < (len(m.Items) - 1) {
m.CursorPos++
ui.Render(m)
}
}
// Setup some default handlers for menu navigation
func (m *Menu) NavigationHandlers() {
ui.Handle("/sys/kbd/<up>", m.Up)
ui.Handle("/sys/kbd/<down>", m.Down)
ui.Handle("/sys/kbd/q", func(ui.Event) { ui.StopLoop() })
}
// return width and height based on menu items
func calcSize(items []string) (w, h int) {
h = len(items) + (padding * 2)
@ -45,73 +87,3 @@ func calcSize(items []string) (w, h int) {
return w, h
}
func (m *Menu) Buffer() ui.Buffer {
var cell ui.Cell
buf := m.Block.Buffer()
for n, item := range m.Items {
x := padding
for _, ch := range item {
// invert bg/fg colors on currently selected row
if m.Selectable && n == m.cursorPos {
cell = ui.Cell{Ch: ch, Fg: m.TextBgColor, Bg: m.TextFgColor}
} else {
cell = ui.Cell{Ch: ch, Fg: m.TextFgColor, Bg: m.TextBgColor}
}
buf.Set(x, n+padding, cell)
x++
}
}
return buf
}
func (m *Menu) Up(ui.Event) {
if m.cursorPos > 0 {
m.cursorPos--
ui.Render(m)
}
}
func (m *Menu) Down(ui.Event) {
if m.cursorPos < (len(m.Items) - 1) {
m.cursorPos++
ui.Render(m)
}
}
func HelpMenu(g *Grid) {
m := NewMenu([]string{
"[h] - open this help dialog",
"[q] - exit ctop",
})
m.TextFgColor = ui.ColorWhite
m.BorderLabel = "Help"
m.BorderFg = ui.ColorCyan
ui.Render(m)
ui.Handle("/sys/kbd/", func(ui.Event) {
ui.StopLoop()
})
ui.Loop()
}
func SortMenu(g *Grid) {
m := NewMenu(SortFields)
m.Selectable = true
m.TextFgColor = ui.ColorWhite
m.BorderLabel = "Sort Field"
m.BorderFg = ui.ColorCyan
ui.Render(m)
ui.Handle("/sys/kbd/<up>", m.Up)
ui.Handle("/sys/kbd/<down>", m.Down)
ui.Handle("/sys/kbd/q", func(ui.Event) {
ui.StopLoop()
})
ui.Handle("/sys/kbd/<enter>", func(ui.Event) {
g.containerMap.config.sortField = m.Items[m.cursorPos]
ui.StopLoop()
})
ui.Loop()
}