dive-zfs/layerview.go
2018-06-03 23:18:41 -04:00

80 lines
1.8 KiB
Go

package main
import (
"fmt"
"github.com/jroimartin/gocui"
)
type LayerView struct {
name string
gui *gocui.Gui
view *gocui.View
layerIndex uint
manifest *Manifest
}
func NewLayerView(name string, gui *gocui.Gui, view *gocui.View, manifest *Manifest) (layerview *LayerView) {
layerview = new(LayerView)
// populate main fields
layerview.name = name
layerview.gui = gui
layerview.view = view
layerview.manifest = manifest
// set view options
layerview.view.Wrap = true
layerview.view.Highlight = true
layerview.view.SelBgColor = gocui.ColorGreen
layerview.view.SelFgColor = gocui.ColorBlack
layerview.render()
return layerview
}
func (view *LayerView) keybindings() error {
if err := view.gui.SetKeybinding("side", gocui.KeyArrowDown, gocui.ModNone, func(*gocui.Gui, *gocui.View) error { return view.cursorDown() }); err != nil {
return err
}
if err := view.gui.SetKeybinding("side", gocui.KeyArrowUp, gocui.ModNone, func(*gocui.Gui, *gocui.View) error { return view.cursorUp() }); err != nil {
return err
}
return nil
}
func (view *LayerView) render() error {
view.gui.Update(func(g *gocui.Gui) error {
view.view.Clear()
for ix, layerName := range view.manifest.Layers {
fmt.Fprintf(view.view, "%d: %s\n", ix+1, layerName[0:25])
}
return nil
})
// todo: blerg
return nil
}
func (view *LayerView) cursorDown() error {
if int(view.layerIndex) < len(data.manifest.Layers) {
cursorDown(view.gui, view.view)
view.layerIndex++
view.render()
views.treeView.reset(StackRange(data.refTrees, view.layerIndex))
}
return nil
}
func (view *LayerView) cursorUp() error {
if int(view.layerIndex) > 0 {
cursorUp(view.gui, view.view)
view.layerIndex--
view.render()
views.treeView.reset(StackRange(data.refTrees, view.layerIndex))
}
return nil
}