cloud-control-panel/example-splash/area.go

package main

// import "time"
import "log"
// import "fmt"
// import "runtime"

import "github.com/andlabs/ui"
import _ "github.com/andlabs/ui/winmanifest"

import "github.com/davecgh/go-spew/spew"

var fontButton *ui.FontButton
var attrstr *ui.AttributedString
var splashArea *ui.Area

func makeSplashArea() *ui.Area {
	fontButton = ui.NewFontButton()
	fontButton.OnChanged(func(*ui.FontButton) {
		spew.Dump(fontButton.Font())
		// SplashArea.QueueRedrawAll()
	})

	spew.Dump(fontButton.Font())

	makeAttributedString()
	splashArea = ui.NewArea(areaHandler{})

	spew.Dump(splashArea)
	return splashArea
}

func appendWithAttributes(what string, attrs ...ui.Attribute) {
	start := len(attrstr.String())
	end := start + len(what)
	attrstr.AppendUnattributed(what)
	for _, a := range attrs {
		attrstr.SetAttribute(a, start, end)
	}
}

func makeAttributedString() {
	attrstr = ui.NewAttributedString("")

	appendWithAttributes("Welcome to the Cloud Control Panel\n", ui.TextSize(16), ui.TextColor{0.0, 0.0, 0.8, .8}) // "RGBT"

	appendWithAttributes("(alpha)\n\n", ui.TextSize(10))

	appendWithAttributes("This control panel was designed to be an interface to your 'private' cloud. ", ui.TextWeightBold)
	appendWithAttributes("The concept of a private cloud means that you can use a providers system, or, seemlessly, use your own hardware in your own datacenter. ", ui.TextWeightBold)

	attrstr.AppendUnattributed("\n")
	attrstr.AppendUnattributed("\n")
	appendWithAttributes("This control panel requires:\n")
	attrstr.AppendUnattributed("\n")
	appendWithAttributes("IPv6\n")
	appendWithAttributes("Your hostname in DNS\n")
}

type areaHandler struct{}

func (areaHandler) Draw(a *ui.Area, p *ui.AreaDrawParams) {
	tl := ui.DrawNewTextLayout(&ui.DrawTextLayoutParams{
		String:		attrstr,
		DefaultFont:	fontButton.Font(),
		Width:		p.AreaWidth,
		Align:		ui.DrawTextAlign(1),
	})
	defer tl.Free()
	p.Context.Text(tl, 0, 0)
}

func (areaHandler) MouseEvent(a *ui.Area, me *ui.AreaMouseEvent) {
	log.Println("GOT MouseEvent()")
	spew.Dump(me)
}

func (areaHandler) MouseCrossed(a *ui.Area, left bool) {
	log.Println("GOT MouseCrossed()")
}

func (areaHandler) DragBroken(a *ui.Area) {
	log.Println("GOT DragBroken()")
}

func (areaHandler) KeyEvent(a *ui.Area, ke *ui.AreaKeyEvent) (handled bool) {
	log.Println("GOT KeyEvent()")
	spew.Dump(ke)
	return false
}