软件简介

按软件介绍：gowut是一个功能全面、简单易用、平台无关的纯go语言WebUI工具包。

例子如下：

package main

import (
        "code.google.com/p/gowut/gwu"
        "strconv"
)

type MyButtonHandler struct {
        counter int
        text    string
}

func (h *MyButtonHandler) HandleEvent(e gwu.Event) {
        if b, isButton := e.Src().(gwu.Button); isButton {
                b.SetText(b.Text() + h.text)
                h.counter++
                b.SetToolTip("You've clicked " + strconv.Itoa(h.counter) + " times!")
                e.MarkDirty(b)
        }
}

func main() {
        // Create and build a window
        win := gwu.NewWindow("main", "Test GUI Window")
        win.Style().SetFullWidth()
        win.SetHAlign(gwu.HA_CENTER)
        win.SetCellPadding(2)

        // Button which changes window content
        win.Add(gwu.NewLabel("I'm a label! Try clicking on the button=>"))
        btn := gwu.NewButton("Click me")
        btn.AddEHandler(&MyButtonHandler{text: ":-)"}, gwu.ETYPE_CLICK)
        win.Add(btn)
        btnsPanel := gwu.NewNaturalPanel()
        btn.AddEHandlerFunc(func(e gwu.Event) {
                // Create and add a new button...
                newbtn := gwu.NewButton("Extra #" + strconv.Itoa(btnsPanel.CompsCount()))
                newbtn.AddEHandlerFunc(func(e gwu.Event) {
                        btnsPanel.Remove(newbtn) // ...which removes itself when clicked
                        e.MarkDirty(btnsPanel)
                }, gwu.ETYPE_CLICK)
                btnsPanel.Insert(newbtn, 0)
                e.MarkDirty(btnsPanel)
        }, gwu.ETYPE_CLICK)
        win.Add(btnsPanel)

        // ListBox examples
        p := gwu.NewHorizontalPanel()
        p.Style().SetBorder2(1, gwu.BRD_STYLE_SOLID, gwu.CLR_BLACK)
        p.SetCellPadding(2)
        p.Add(gwu.NewLabel("A drop-down list being"))
        widelb := gwu.NewListBox([]string{"50", "100", "150", "200", "250"})
        widelb.Style().SetWidth("50")
        widelb.AddEHandlerFunc(func(e gwu.Event) {
                widelb.Style().SetWidth(widelb.SelectedValue() + "px")
                e.MarkDirty(widelb)
        }, gwu.ETYPE_CHANGE)
        p.Add(widelb)
        p.Add(gwu.NewLabel("pixel wide. And a multi-select list:"))
        listBox := gwu.NewListBox([]string{"First", "Second", "Third", "Forth", "Fifth", "Sixth"})
        listBox.SetMulti(true)
        listBox.SetRows(4)
        p.Add(listBox)
        countLabel := gwu.NewLabel("Selected count: 0")
        listBox.AddEHandlerFunc(func(e gwu.Event) {
                countLabel.SetText("Selected count: " + strconv.Itoa(len(listBox.SelectedIndices())))
                e.MarkDirty(countLabel)
        }, gwu.ETYPE_CHANGE)
        p.Add(countLabel)
        win.Add(p)

        // Self-color changer check box
        greencb := gwu.NewCheckBox("I'm a check box. When checked, I'm green!")
        greencb.AddEHandlerFunc(func(e gwu.Event) {
                if greencb.State() {
                        greencb.Style().SetBackground(gwu.CLR_GREEN)
                } else {
                        greencb.Style().SetBackground("")
                }
                e.MarkDirty(greencb)
        }, gwu.ETYPE_CLICK)
        win.Add(greencb)

        // TextBox with echo
        p = gwu.NewHorizontalPanel()
        p.Add(gwu.NewLabel("Enter your name:"))
        tb := gwu.NewTextBox("")
        tb.AddSyncOnETypes(gwu.ETYPE_KEY_UP)
        p.Add(tb)
        p.Add(gwu.NewLabel("You entered:"))
        nameLabel := gwu.NewLabel("")
        nameLabel.Style().SetColor(gwu.CLR_RED)
        tb.AddEHandlerFunc(func(e gwu.Event) {
                nameLabel.SetText(tb.Text())
                e.MarkDirty(nameLabel)
        }, gwu.ETYPE_CHANGE, gwu.ETYPE_KEY_UP)
        p.Add(nameLabel)
        win.Add(p)

        // Create and start a GUI server (omitting error check)
        server := gwu.NewServer("guitest", "localhost:8081")
        server.SetText("Test GUI App")
        server.AddWin(win)
        server.Start("") // Also opens windows list in browser
}

结果如下：