func buildPanelDemo(event gwu.Event) gwu.Comp {
p := gwu.NewPanel()
p.Add(gwu.NewLabel("Panel with horizontal layout:"))
h := gwu.NewHorizontalPanel()
for i := 1; i <= 5; i++ {
h.Add(gwu.NewButton("Button " + strconv.Itoa(i)))
}
p.Add(h)
p.AddVSpace(20)
p.Add(gwu.NewLabel("Panel with vertical layout:"))
v := gwu.NewVerticalPanel()
for i := 1; i <= 5; i++ {
v.Add(gwu.NewButton("Button " + strconv.Itoa(i)))
}
p.Add(v)
p.AddVSpace(20)
p.Add(gwu.NewLabel("Panel with natural layout:"))
n := gwu.NewNaturalPanel()
for i := 1; i <= 20; i++ {
n.Add(gwu.NewButton("LONG BUTTON " + strconv.Itoa(i)))
}
p.Add(n)
return p
}
func buildShowcaseWin(sess gwu.Session) {
win := gwu.NewWindow("show", "Showcase of Features - Gowut")
win.Style().SetFullSize()
win.AddEHandlerFunc(func(e gwu.Event) {
switch e.Type() {
case gwu.ETYPE_WIN_LOAD:
fmt.Println("LOADING window:", e.Src().Id())
case gwu.ETYPE_WIN_UNLOAD:
fmt.Println("UNLOADING window:", e.Src().Id())
}
}, gwu.ETYPE_WIN_LOAD, gwu.ETYPE_WIN_UNLOAD)
hiddenPan := gwu.NewNaturalPanel()
sess.SetAttr("hiddenPan", hiddenPan)
header := gwu.NewHorizontalPanel()
header.Style().SetFullWidth().SetBorderBottom2(2, gwu.BRD_STYLE_SOLID, "#777777")
l := gwu.NewLabel("Gowut - Showcase of Features")
l.Style().SetFontWeight(gwu.FONT_WEIGHT_BOLD).SetFontSize("120%")
header.Add(l)
header.AddHConsumer()
header.Add(gwu.NewLabel("Theme:"))
themes := gwu.NewListBox([]string{"default", "debug"})
themes.AddEHandlerFunc(func(e gwu.Event) {
win.SetTheme(themes.SelectedValue())
e.ReloadWin("show")
}, gwu.ETYPE_CHANGE)
header.Add(themes)
header.AddHSpace(10)
reset := gwu.NewLink("Reset", "#")
reset.SetTarget("")
reset.AddEHandlerFunc(func(e gwu.Event) {
e.RemoveSess()
e.ReloadWin("show")
}, gwu.ETYPE_CLICK)
header.Add(reset)
setNoWrap(header)
win.Add(header)
content := gwu.NewHorizontalPanel()
content.SetCellPadding(1)
content.SetVAlign(gwu.VA_TOP)
content.Style().SetFullSize()
demoWrapper := gwu.NewPanel()
demoWrapper.Style().SetPaddingLeftPx(5)
demoWrapper.AddVSpace(10)
demoTitle := gwu.NewLabel("")
demoTitle.Style().SetFontWeight(gwu.FONT_WEIGHT_BOLD).SetFontSize("110%")
demoWrapper.Add(demoTitle)
demoWrapper.AddVSpace(10)
links := gwu.NewPanel()
links.SetCellPadding(1)
links.Style().SetPaddingRightPx(5)
demos := make(map[string]pdemo)
var selDemo pdemo
selectDemo := func(d pdemo, e gwu.Event) {
if selDemo != nil {
selDemo.link.Style().SetBackground("")
if e != nil {
e.MarkDirty(selDemo.link)
}
demoWrapper.Remove(selDemo.comp)
}
selDemo = d
d.link.Style().SetBackground("#88ff88")
demoTitle.SetText(d.link.Text())
if d.comp == nil {
d.comp = d.buildFunc(e)
}
demoWrapper.Add(d.comp)
if e != nil {
e.MarkDirty(d.link, demoWrapper)
}
}
createDemo := func(name string, buildFunc func(gwu.Event) gwu.Comp) pdemo {
link := gwu.NewLabel(name)
link.Style().SetFullWidth().SetCursor(gwu.CURSOR_POINTER).SetDisplay(gwu.DISPLAY_BLOCK).SetColor(gwu.CLR_BLUE)
demo := &demo{link: link, buildFunc: buildFunc}
link.AddEHandlerFunc(func(e gwu.Event) {
selectDemo(demo, e)
}, gwu.ETYPE_CLICK)
links.Add(link)
demos[name] = demo
return demo
}
links.Style().SetFullHeight().SetBorderRight2(2, gwu.BRD_STYLE_SOLID, "#777777")
links.AddVSpace(5)
homeDemo := createDemo("Home", buildHomeDemo)
selectDemo(homeDemo, nil)
links.AddVSpace(5)
l = gwu.NewLabel("Component Palette")
l.Style().SetFontWeight(gwu.FONT_WEIGHT_BOLD).SetFontSize("110%")
links.Add(l)
links.AddVSpace(5)
l = gwu.NewLabel("Containers")
l.Style().SetFontWeight(gwu.FONT_WEIGHT_BOLD)
links.Add(l)
createDemo("Expander", buildExpanderDemo)
createDemo("Link (as Container)", buildLinkContainerDemo)
createDemo("Panel", buildPanelDemo)
createDemo("Table", buildTableDemo)
createDemo("TabPanel", buildTabPanelDemo)
createDemo("Window", buildWindowDemo)
links.AddVSpace(5)
l = gwu.NewLabel("Input components")
l.Style().SetFontWeight(gwu.FONT_WEIGHT_BOLD).SetDisplay(gwu.DISPLAY_BLOCK)
links.Add(l)
createDemo("CheckBox", buildCheckBoxDemo)
createDemo("ListBox", buildListBoxDemo)
createDemo("TextBox", buildTextBoxDemo)
createDemo("PasswBox", buildPasswBoxDemo)
createDemo("RadioButton", buildRadioButtonDemo)
createDemo("SwitchButton", buildSwitchButtonDemo)
links.AddVSpace(5)
l = gwu.NewLabel("Other components")
l.Style().SetFontWeight(gwu.FONT_WEIGHT_BOLD)
links.Add(l)
createDemo("Button", buildButtonDemo)
createDemo("Html", buildHtmlDemo)
createDemo("Image", buildImageDemo)
createDemo("Label", buildLabelDemo)
createDemo("Link", buildLinkDemo)
createDemo("Timer", buildTimerDemo)
links.AddVConsumer()
setNoWrap(links)
content.Add(links)
content.Add(demoWrapper)
content.CellFmt(demoWrapper).Style().SetFullWidth()
win.Add(content)
win.CellFmt(content).Style().SetFullSize()
footer := gwu.NewHorizontalPanel()
footer.Style().SetFullWidth().SetBorderTop2(2, gwu.BRD_STYLE_SOLID, "#777777")
footer.Add(hiddenPan)
footer.AddHConsumer()
l = gwu.NewLabel("Copyright © 2013-2015 András Belicza. All rights reserved.")
l.Style().SetFontStyle(gwu.FONT_STYLE_ITALIC).SetFontSize("95%")
footer.Add(l)
footer.AddHSpace(10)
link := gwu.NewLink("Visit Gowut Home page", "https://sites.google.com/site/gowebuitoolkit/")
link.Style().SetFontStyle(gwu.FONT_STYLE_ITALIC).SetFontSize("95%")
footer.Add(link)
setNoWrap(footer)
win.Add(footer)
sess.AddWin(win)
}
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
}