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// Copyright 2019-2022 Graham Clark. All rights reserved. Use of this source code is governed by the MIT license
// that can be found in the LICENSE file.
// A demonstration of gowid's overlay, fill, asciigraph and radio widgets.
package main
import (
"math/rand"
"github.com/gcla/gowid"
"github.com/gcla/gowid/examples"
"github.com/gcla/gowid/gwutil"
"github.com/gcla/gowid/widgets/asciigraph"
"github.com/gcla/gowid/widgets/checkbox"
"github.com/gcla/gowid/widgets/columns"
"github.com/gcla/gowid/widgets/divider"
"github.com/gcla/gowid/widgets/framed"
"github.com/gcla/gowid/widgets/hpadding"
"github.com/gcla/gowid/widgets/overlay"
"github.com/gcla/gowid/widgets/pile"
"github.com/gcla/gowid/widgets/radio"
"github.com/gcla/gowid/widgets/styled"
"github.com/gcla/gowid/widgets/text"
"github.com/gcla/gowid/widgets/vpadding"
tcell "github.com/gdamore/tcell/v2"
asc "github.com/guptarohit/asciigraph"
log "github.com/sirupsen/logrus"
)
//======================================================================
var ov *overlay.Widget
var ovh, ovw int = 50, 50
//======================================================================
type handler struct{}
func (h handler) UnhandledInput(app gowid.IApp, ev interface{}) bool {
handled := false
if evk, ok := ev.(*tcell.EventKey); ok {
handled = true
if evk.Key() == tcell.KeyCtrlC || evk.Key() == tcell.KeyEsc || evk.Rune() == 'q' || evk.Rune() == 'Q' {
app.Quit()
} else if evk.Key() == tcell.KeyUp || evk.Rune() == 'u' {
ovh = gwutil.Min(100, ovh+1)
ov.SetHeight(gowid.RenderWithRatio{float64(ovh) / 100.0}, app)
} else if evk.Key() == tcell.KeyDown || evk.Rune() == 'd' {
ovh = gwutil.Max(0, ovh-1)
ov.SetHeight(gowid.RenderWithRatio{float64(ovh) / 100.0}, app)
} else if evk.Key() == tcell.KeyRight {
ovw = gwutil.Min(100, ovw+1)
ov.SetWidth(gowid.RenderWithRatio{float64(ovw) / 100.0}, app)
} else if evk.Key() == tcell.KeyLeft {
ovw = gwutil.Max(0, ovw-1)
ov.SetWidth(gowid.RenderWithRatio{float64(ovw) / 100.0}, app)
} else {
handled = false
}
}
return handled
}
//======================================================================
func main() {
f := examples.RedirectLogger("overlay2.log")
defer f.Close()
palette := gowid.Palette{
"red": gowid.MakePaletteEntry(gowid.ColorRed, gowid.ColorDefault),
}
fixed := gowid.RenderFixed{}
rbgroup := make([]radio.IWidget, 0)
rb1 := radio.New(&rbgroup)
rbt1 := text.New(" option1 ")
rb2 := radio.New(&rbgroup)
rbt2 := text.New(" option2 ")
rb3 := radio.New(&rbgroup)
rbt3 := text.New(" option3 ")
data := []float64{2, 1, 1, 2, -2, 5, 7, 11, 3, 7, 1, 4, 7, 2, 2, 9}
data2 := []float64{9, 2, 2, 7, 4, 1, 7, 3, 11, 7, 5, -2, 2, 1, 1, 2}
conf := []asc.Option{}
graph := asciigraph.New(data, conf)
callback := func(app gowid.IApp, target gowid.IWidget) {
if rb1.IsChecked() {
graph.SetData(data, app)
}
if rb2.IsChecked() {
graph.SetData(data2, app)
}
if rb3.IsChecked() {
data3 := make([]float64, 40)
for i := 0; i < len(data3); i++ {
data3[i] = gwutil.Round(rand.Float64() * 14)
}
graph.SetData(data3, app)
}
}
rb1.OnClick(gowid.WidgetCallback{gowid.ClickCB{}, callback})
rb2.OnClick(gowid.WidgetCallback{gowid.ClickCB{}, callback})
rb3.OnClick(gowid.WidgetCallback{gowid.ClickCB{}, callback})
c2cols := []gowid.IContainerWidget{
&gowid.ContainerWidget{rb1, fixed},
&gowid.ContainerWidget{rbt1, fixed},
&gowid.ContainerWidget{rb2, fixed},
&gowid.ContainerWidget{rbt2, fixed},
&gowid.ContainerWidget{rb3, fixed},
&gowid.ContainerWidget{rbt3, fixed},
}
cols := columns.New(c2cols)
rows := pile.New([]gowid.IContainerWidget{
&gowid.ContainerWidget{cols, gowid.RenderWithUnits{U: 1}},
&gowid.ContainerWidget{divider.NewUnicode(), gowid.RenderFlow{}},
&gowid.ContainerWidget{graph, gowid.RenderWithWeight{1}},
})
fcols := framed.NewUnicodeAlt(framed.NewUnicodeAlt(rows))
top := styled.New(fcols, gowid.MakePaletteRef("red"))
bottom := vpadding.New(hpadding.New(checkbox.New(false), gowid.HAlignLeft{}, gowid.RenderFixed{}), gowid.VAlignTop{}, gowid.RenderFlow{})
ov = overlay.New(top, bottom,
gowid.VAlignMiddle{}, gowid.RenderWithRatio{0.5},
gowid.HAlignMiddle{}, gowid.RenderWithRatio{0.5})
app, err := gowid.NewApp(gowid.AppArgs{
View: ov,
Palette: &palette,
Log: log.StandardLogger(),
})
examples.ExitOnErr(err)
app.MainLoop(handler{})
}
//======================================================================
// Local Variables:
// mode: Go
// fill-column: 110
// End:
|
