func buildTableDemo(event gwu.Event) gwu.Comp {
p := gwu.NewPanel()
l := gwu.NewLabel("Tip: Switch to the 'debug' theme (top right) to see cell borders.")
l.Style().SetColor(gwu.CLR_RED).SetFontStyle(gwu.FONT_STYLE_ITALIC)
p.Add(l)
p.AddVSpace(20)
p.Add(gwu.NewLabel("A simple form aligned with a table:"))
p.AddVSpace(10)
t := gwu.NewTable()
t.SetCellPadding(2)
t.EnsureSize(2, 2)
var c gwu.Comp
t.Add(gwu.NewLabel("User name:"), 0, 0)
c = gwu.NewTextBox("")
c.Style().SetWidthPx(160)
t.Add(c, 0, 1)
t.Add(gwu.NewLabel("Password:"******"")
c.Style().SetWidthPx(160)
t.Add(c, 1, 1)
t.Add(gwu.NewLabel("Go to:"), 2, 0)
c = gwu.NewListBox([]string{"Inbox", "User preferences", "Last visited page"})
c.Style().SetWidthPx(160)
t.Add(c, 2, 1)
p.Add(t)
p.AddVSpace(30)
p.Add(gwu.NewLabel("Advanced table structure with modified alignment, row and col spans:"))
p.AddVSpace(10)
t = gwu.NewTable()
t.Style().SetBorder2(1, gwu.BRD_STYLE_SOLID, gwu.CLR_GREY)
t.SetAlign(gwu.HA_RIGHT, gwu.VA_TOP)
t.EnsureSize(5, 5)
for row := 0; row < 5; row++ {
for col := 0; col < 5; col++ {
t.Add(gwu.NewButton("Button "+strconv.Itoa(row)+strconv.Itoa(col)), row, col)
}
}
t.SetColSpan(2, 1, 2)
t.SetRowSpan(3, 1, 2)
t.CellFmt(2, 2).Style().SetSizePx(150, 80)
t.CellFmt(2, 2).SetAlign(gwu.HA_RIGHT, gwu.VA_BOTTOM)
t.RowFmt(2).SetAlign(gwu.HA_DEFAULT, gwu.VA_MIDDLE)
t.CompAt(2, 1).Style().SetFullSize()
t.CompAt(4, 2).Style().SetFullWidth()
t.RowFmt(0).Style().SetBackground(gwu.CLR_RED)
t.RowFmt(1).Style().SetBackground(gwu.CLR_GREEN)
t.RowFmt(2).Style().SetBackground(gwu.CLR_BLUE)
t.RowFmt(3).Style().SetBackground(gwu.CLR_GREY)
t.RowFmt(4).Style().SetBackground(gwu.CLR_TEAL)
p.Add(t)
return p
}
func buildListBoxDemo(event gwu.Event) gwu.Comp {
p := gwu.NewPanel()
row := gwu.NewHorizontalPanel()
l := gwu.NewLabel("Select a background color:")
row.Add(l)
lb := gwu.NewListBox([]string{"", "Black", "Red", "Green", "Blue", "White"})
lb.AddEHandlerFunc(func(e gwu.Event) {
l.Style().SetBackground(lb.SelectedValue())
e.MarkDirty(l)
}, gwu.ETYPE_CHANGE)
row.Add(lb)
p.Add(row)
p.AddVSpace(10)
p.Add(gwu.NewLabel("Select numbers that add up to 89:"))
sumLabel := gwu.NewLabel("")
lb2 := gwu.NewListBox([]string{"1", "2", "4", "8", "16", "32", "64", "128"})
lb2.SetMulti(true)
lb2.SetRows(10)
lb2.AddEHandlerFunc(func(e gwu.Event) {
sum := 0
for _, idx := range lb2.SelectedIndices() {
sum += 1 << uint(idx)
}
if sum == 89 {
sumLabel.SetText("Hooray! You did it!")
} else {
sumLabel.SetText(fmt.Sprintf("Now quite there... (sum = %d)", sum))
}
e.MarkDirty(sumLabel)
}, gwu.ETYPE_CHANGE)
p.Add(lb2)
p.Add(sumLabel)
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 buildTabPanelDemo(event gwu.Event) gwu.Comp {
p := gwu.NewPanel()
t := gwu.NewTabPanel()
t.Style().SetSizePx(500, 300)
table := gwu.NewTable()
table.SetCellPadding(2)
table.EnsureSize(3, 2)
table.Add(gwu.NewLabel("Change tab bar placement:"), 0, 0)
table.Add(gwu.NewLabel("Tab bar horizontal align:"), 1, 0)
table.Add(gwu.NewLabel("Tab bar vertical align:"), 2, 0)
placemslb := gwu.NewListBox([]string{"Top", "Right", "Bottom", "Left"})
placems := []gwu.TabBarPlacement{gwu.TB_PLACEMENT_TOP, gwu.TB_PLACEMENT_RIGHT, gwu.TB_PLACEMENT_BOTTOM, gwu.TB_PLACEMENT_LEFT}
halignslb := gwu.NewListBox([]string{"Left", "Center", "Right"})
haligns := []gwu.HAlign{gwu.HA_LEFT, gwu.HA_CENTER, gwu.HA_RIGHT}
valignslb := gwu.NewListBox([]string{"Top", "Middle", "Bottom"})
valigns := []gwu.VAlign{gwu.VA_TOP, gwu.VA_MIDDLE, gwu.VA_BOTTOM}
placemslb.Style().SetFullWidth()
halignslb.Style().SetFullWidth()
valignslb.Style().SetFullWidth()
table.Add(placemslb, 0, 1)
table.Add(halignslb, 1, 1)
table.Add(valignslb, 2, 1)
placemslb.AddEHandlerFunc(func(e gwu.Event) {
t.SetTabBarPlacement(placems[placemslb.SelectedIdx()])
e.MarkDirty(t)
}, gwu.ETYPE_CHANGE)
halignslb.AddEHandlerFunc(func(e gwu.Event) {
t.TabBarFmt().SetHAlign(haligns[halignslb.SelectedIdx()])
e.MarkDirty(t)
}, gwu.ETYPE_CHANGE)
valignslb.AddEHandlerFunc(func(e gwu.Event) {
t.TabBarFmt().SetVAlign(valigns[valignslb.SelectedIdx()])
e.MarkDirty(t)
}, gwu.ETYPE_CHANGE)
p.Add(table)
fix := gwu.NewCheckBox("Fixed size")
fix.SetState(true)
fix.AddEHandlerFunc(func(e gwu.Event) {
if fix.State() {
t.Style().SetSizePx(500, 300)
} else {
t.Style().SetSize("", "")
}
e.MarkDirty(t)
}, gwu.ETYPE_CLICK)
p.Add(fix)
p.AddVSpace(10)
l := gwu.NewLabel("Click on tabs...")
l.Style().SetColor(gwu.CLR_GREEN)
p.Add(l)
t.AddEHandlerFunc(func(e gwu.Event) {
l.SetText("Clicked on tab: " + strconv.Itoa(t.Selected()))
e.MarkDirty(l)
}, gwu.ETYPE_STATE_CHANGE)
p.AddVSpace(10)
c := gwu.NewPanel()
c.Add(gwu.NewLabel("This is a TabPanel."))
c.Add(gwu.NewLabel("Click on other tabs to see their content."))
c.AddVSpace(15)
c.Add(gwu.NewLabel("Or click here to see what's in the Hollow:"))
b := gwu.NewButton("Take me to the Hollow!")
b.AddEHandlerFunc(func(e gwu.Event) {
t.SetSelected(3)
e.MarkDirty(t)
}, gwu.ETYPE_CLICK)
c.Add(b)
t.AddString("Home", c)
c = gwu.NewPanel()
c.Add(gwu.NewLabel("You have no new messages."))
t.AddString("Inbox", c)
c = gwu.NewPanel()
c.Add(gwu.NewLabel("You have no sent messages."))
t.AddString("Sent", c)
c = gwu.NewPanel()
c.Add(gwu.NewLabel("There is nothing in the hollow."))
t.AddString("Hollow", c)
c = gwu.NewPanel()
tb := gwu.NewTextBox("Click to edit this comment.")
tb.SetRows(10)
tb.SetCols(40)
c.Add(tb)
t.AddString("Comment", c)
p.Add(t)
return p
}
func buildPrivateWins(s gwu.Session) {
// Create and build a window
win := gwu.NewWindow("main", "Main Window")
win.Style().SetFullWidth()
win.SetCellPadding(2)
p := gwu.NewPanel()
p.SetLayout(gwu.LAYOUT_HORIZONTAL)
p.SetCellPadding(2)
p.Add(gwu.NewLabel("I'm a label! Try clicking on the button=>"))
p.Add(gwu.NewLink("Google Home", "https://google.com"))
img := gwu.NewImage("", "https://www.google.com/images/srpr/logo3w.png")
img.Style().SetSize("25%", "25%")
p.Add(img)
win.Add(p)
button := gwu.NewButton("Click me")
button.AddEHandler(&MyButtonHandler{text: ":-)"}, gwu.ETYPE_CLICK)
win.Add(button)
extraBtns := gwu.NewPanel()
extraBtns.SetLayout(gwu.LAYOUT_NATURAL)
button.AddEHandlerFunc(func(e gwu.Event) {
extraBtn := gwu.NewButton("Extra #" + strconv.Itoa(extraBtns.CompsCount()))
extraBtn.AddEHandlerFunc(func(e gwu.Event) {
extraBtn.Parent().Remove(extraBtn)
e.MarkDirty(extraBtns)
}, gwu.ETYPE_CLICK)
extraBtns.Insert(extraBtn, 0)
e.MarkDirty(extraBtns)
}, gwu.ETYPE_CLICK)
win.Add(extraBtns)
p = gwu.NewPanel()
p.SetLayout(gwu.LAYOUT_HORIZONTAL)
p.SetCellPadding(2)
p.Style().SetBorder2(1, gwu.BRD_STYLE_SOLID, gwu.CLR_BLACK)
p.Add(gwu.NewLabel("A drop-down list being"))
wideListBox := gwu.NewListBox([]string{"50", "100", "150", "200", "250"})
wideListBox.Style().SetWidth("50")
wideListBox.AddEHandlerFunc(func(e gwu.Event) {
wideListBox.Style().SetWidth(wideListBox.SelectedValue() + "px")
e.MarkDirty(wideListBox)
}, gwu.ETYPE_CHANGE)
p.Add(wideListBox)
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) {
selCount := len(listBox.SelectedIndices())
countLabel.SetText("Selected count: " + strconv.Itoa(selCount))
e.MarkDirty(countLabel)
}, gwu.ETYPE_CHANGE)
p.Add(countLabel)
win.Add(p)
greenCheckBox := gwu.NewCheckBox("I'm a check box. When checked, I'm green!")
greenCheckBox.AddEHandlerFunc(func(e gwu.Event) {
if greenCheckBox.State() {
greenCheckBox.Style().SetBackground(gwu.CLR_GREEN)
} else {
greenCheckBox.Style().SetBackground("")
}
e.MarkDirty(greenCheckBox)
}, gwu.ETYPE_CLICK)
greenCheckBox.AddEHandler(greenHandler, gwu.ETYPE_CLICK)
win.Add(greenCheckBox)
table := gwu.NewTable()
table.SetCellPadding(2)
table.Style().SetBorder2(1, gwu.BRD_STYLE_SOLID, gwu.CLR_BLACK)
table.EnsureSize(2, 4)
table.Add(gwu.NewLabel("TAB-"), 0, 0)
table.Add(gwu.NewLabel("LE"), 0, 1)
table.Add(gwu.NewLabel("DE-"), 0, 2)
table.Add(gwu.NewLabel("MO"), 0, 3)
table.Add(gwu.NewLabel("Enter your name:"), 1, 0)
tb := gwu.NewTextBox("")
tb.AddSyncOnETypes(gwu.ETYPE_KEY_UP)
table.Add(tb, 1, 1)
table.Add(gwu.NewLabel("You entered:"), 1, 2)
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)
table.Add(nameLabel, 1, 3)
win.Add(table)
table = gwu.NewTable()
table.Style().SetBorder2(1, gwu.BRD_STYLE_SOLID, gwu.CLR_BLACK)
table.SetAlign(gwu.HA_RIGHT, gwu.VA_TOP)
table.EnsureSize(5, 5)
for row := 0; row < 5; row++ {
group := gwu.NewRadioGroup(strconv.Itoa(row))
for col := 0; col < 5; col++ {
radio := gwu.NewRadioButton("= "+strconv.Itoa(col)+" =", group)
radio.AddEHandlerFunc(func(e gwu.Event) {
radios := []gwu.RadioButton{radio, radio.Group().PrevSelected()}
for _, radio := range radios {
if radio != nil {
if radio.State() {
radio.Style().SetBackground(gwu.CLR_GREEN)
} else {
radio.Style().SetBackground("")
}
e.MarkDirty(radio)
}
}
}, gwu.ETYPE_CLICK)
table.Add(radio, row, col)
}
}
table.SetColSpan(2, 1, 2)
table.SetRowSpan(3, 1, 2)
table.CellFmt(2, 2).Style().SetSizePx(150, 80)
table.CellFmt(2, 2).SetAlign(gwu.HA_RIGHT, gwu.VA_BOTTOM)
table.RowFmt(2).Style().SetBackground("#808080")
table.RowFmt(2).SetAlign(gwu.HA_DEFAULT, gwu.VA_MIDDLE)
table.RowFmt(3).Style().SetBackground("#d0d0d0")
table.RowFmt(4).Style().SetBackground("#b0b0b0")
win.Add(table)
tabPanel := gwu.NewTabPanel()
tabPanel.SetTabBarPlacement(gwu.TB_PLACEMENT_TOP)
for i := 0; i < 6; i++ {
if i == 3 {
img := gwu.NewImage("", "https://www.google.com/images/srpr/logo3w.png")
img.Style().SetWidthPx(100)
tabPanel.Add(img, gwu.NewLabel("This is some long content, random="+strconv.Itoa(rand.Int())))
continue
}
tabPanel.AddString(strconv.Itoa(i)+". tab", gwu.NewLabel("This is some long content, random="+strconv.Itoa(rand.Int())))
}
win.Add(tabPanel)
tabPanel = gwu.NewTabPanel()
tabPanel.SetTabBarPlacement(gwu.TB_PLACEMENT_LEFT)
tabPanel.TabBarFmt().SetVAlign(gwu.VA_BOTTOM)
for i := 7; i < 11; i++ {
l := gwu.NewLabel("This is some long content, random=" + strconv.Itoa(rand.Int()))
if i == 9 {
img := gwu.NewImage("", "https://www.google.com/images/srpr/logo3w.png")
img.Style().SetWidthPx(100)
tabPanel.Add(img, l)
tabPanel.CellFmt(l).Style().SetSizePx(400, 400)
continue
}
tabPanel.AddString(strconv.Itoa(i)+". tab", l)
tabPanel.CellFmt(l).Style().SetSizePx(400, 400)
}
win.Add(tabPanel)
s.AddWin(win)
win2 := gwu.NewWindow("main2", "Main2 Window")
win2.Add(gwu.NewLabel("This is just a test 2nd window."))
back := gwu.NewButton("Back")
back.AddEHandlerFunc(func(e gwu.Event) {
e.ReloadWin(win.Name())
}, gwu.ETYPE_CLICK)
win2.Add(back)
s.AddWin(win2)
}
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
}