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 buildButtonDemo(event gwu.Event) gwu.Comp {
p := gwu.NewPanel()
l := gwu.NewLabel("")
btnp := gwu.NewHorizontalPanel()
b := gwu.NewButton("Normal Button")
b.AddEHandlerFunc(func(e gwu.Event) {
switch e.Type() {
case gwu.ETYPE_MOUSE_OVER:
l.SetText("Mouse is over...")
case gwu.ETYPE_MOUSE_OUT:
l.SetText("Mouse is out.")
case gwu.ETYPE_CLICK:
x, y := e.Mouse()
l.SetText(fmt.Sprintf("Clicked at x=%d, y=%d", x, y))
}
e.MarkDirty(l)
}, gwu.ETYPE_CLICK, gwu.ETYPE_MOUSE_OVER, gwu.ETYPE_MOUSE_OUT)
btnp.Add(b)
b = gwu.NewButton("Disabled Button")
b.SetEnabled(false)
btnp.Add(b)
p.Add(btnp)
p.Add(l)
return p
}
func buildLabelDemo(event gwu.Event) gwu.Comp {
p := gwu.NewPanel()
p.Add(gwu.NewLabel("This is a Label."))
p.Add(gwu.NewLabel("δΈη And another one. γ
γ
"))
p.Add(gwu.NewLabel("Nothing special about them, but they may be the mostly used components."))
p.AddVSpace(20)
p.Add(gwu.NewLabel("You can change their text:"))
b := gwu.NewButton("Change!")
b.AddEHandlerFunc(func(e gwu.Event) {
for i := 0; i < p.CompsCount(); i++ {
if l, ok := p.CompAt(i).(gwu.Label); ok && l != b {
reversed := []rune(l.Text())
for i, j := 0, len(reversed)-1; i < j; i, j = i+1, j-1 {
reversed[i], reversed[j] = reversed[j], reversed[i]
}
l.SetText(string(reversed))
}
}
e.MarkDirty(p)
}, gwu.ETYPE_CLICK)
p.Add(b)
return p
}
func main() {
// Create GUI server
server := gwu.NewServer("guitest", "")
//server := gwu.NewServerTLS("guitest", "", "test_tls/cert.pem", "test_tls/key.pem")
server.SetText("Test GUI Application")
server.AddSessCreatorName("login", "Login Window")
server.AddSHandler(SessHandler{})
win := gwu.NewWindow("home", "Home Window")
l := gwu.NewLabel("Home, sweet home of " + server.Text())
l.Style().SetFontWeight(gwu.FONT_WEIGHT_BOLD).SetFontSize("130%")
win.Add(l)
win.Add(gwu.NewLabel("Click on the button to login:"******"Login")
b.AddEHandlerFunc(func(e gwu.Event) {
e.ReloadWin("login")
}, gwu.ETYPE_CLICK)
win.Add(b)
server.AddWin(win)
server.SetLogger(log.New(os.Stdout, "", log.LstdFlags))
// Start GUI server
if err := server.Start(); err != nil {
fmt.Println("Error: Cound not start GUI server:", err)
return
}
}
// Example code determining which button was clicked.
func ExampleButton() {
b := gwu.NewButton("Click me")
b.AddEHandlerFunc(func(e gwu.Event) {
if e.MouseBtn() == gwu.MOUSE_BTN_MIDDLE {
// Middle click
}
}, gwu.ETYPE_CLICK)
}
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 buildLinkContainerDemo(event gwu.Event) gwu.Comp {
p := gwu.NewPanel()
link := gwu.NewLink("An obvious link, to Google Home", "https://google.com/")
inside := gwu.NewPanel()
inside.Style().SetBorder2(1, gwu.BRD_STYLE_SOLID, gwu.CLR_GRAY)
inside.Add(gwu.NewLabel("Everything inside this box also links to Google!"))
inside.Add(gwu.NewButton("Me too!"))
link.SetComp(inside)
p.Add(link)
return p
}
func buildTimerDemo(event gwu.Event) gwu.Comp {
p := gwu.NewPanel()
p.SetCellPadding(3)
// Add timers to a panel which is always attached instead of our panel
// because the user can switch to another component demo causing this panel to be removed
// and that way timer events would address components that are not part of the window (returning error).
hiddenPan := event.Session().Attr("hiddenPan").(gwu.Panel)
p.Add(gwu.NewLabel("A Timer is used to detonate a bomb after 3 seconds."))
p.AddVSpace(10)
defText := "You can defuse the bomb with the button below. Tick... Tack..."
l := gwu.NewLabel(defText)
p.Add(l)
t := gwu.NewTimer(3 * time.Second)
b := gwu.NewButton("Defuse!")
t.AddEHandlerFunc(func(e gwu.Event) {
l.SetText("BOOOOM! You were too slow!")
l.Style().SetColor(gwu.CLR_RED)
b.SetEnabled(false)
e.MarkDirty(l, b)
}, gwu.ETYPE_STATE_CHANGE)
hiddenPan.Add(t)
row := gwu.NewHorizontalPanel()
b.AddEHandlerFunc(func(e gwu.Event) {
t.SetActive(false)
l.SetText("Bomb defused! Phew! Good Job!")
l.Style().SetColor(gwu.CLR_GREEN)
b.SetEnabled(false)
e.MarkDirty(t, l, b)
}, gwu.ETYPE_CLICK)
row.Add(b)
b2 := gwu.NewButton("Plant a new Bomb!")
b2.AddEHandlerFunc(func(e gwu.Event) {
t.SetActive(true)
t.Reset()
l.SetText(defText)
l.Style().SetColor("")
b.SetEnabled(true)
e.MarkDirty(t, l, b)
}, gwu.ETYPE_CLICK)
row.Add(b2)
p.Add(row)
p.AddVSpace(20)
p.Add(gwu.NewLabel("A Timer is used to refresh the time below repeatedly in every second for half a minute."))
tl := gwu.NewLabel("")
p.Add(tl)
t2 := gwu.NewTimer(time.Second)
t2.SetRepeat(true)
counter := 30
t2.AddEHandlerFunc(func(e gwu.Event) {
counter--
tl.SetText(fmt.Sprintf("%s (%d remaining)", time.Now().Format("2006-01-02 15:04:05"), counter))
e.MarkDirty(tl)
if counter <= 0 {
t2.SetActive(false)
e.MarkDirty(t2)
}
}, gwu.ETYPE_STATE_CHANGE)
hiddenPan.Add(t2)
b3 := gwu.NewButton("Restart")
b3.AddEHandlerFunc(func(e gwu.Event) {
counter = 30
t2.SetActive(true)
e.MarkDirty(t2)
}, gwu.ETYPE_CLICK)
p.Add(b3)
event.MarkDirty(hiddenPan)
return p
}
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 buildLoginWin(s gwu.Session) {
win := gwu.NewWindow("login", "Login Window")
win.Style().SetFullSize()
win.SetAlign(gwu.HA_CENTER, gwu.VA_MIDDLE)
p := gwu.NewPanel()
p.SetHAlign(gwu.HA_CENTER)
p.SetCellPadding(2)
l := gwu.NewLabel("Test GUI Login Window")
l.Style().SetFontWeight(gwu.FONT_WEIGHT_BOLD).SetFontSize("150%")
p.Add(l)
l = gwu.NewLabel("Login")
l.Style().SetFontWeight(gwu.FONT_WEIGHT_BOLD).SetFontSize("130%")
p.Add(l)
p.CellFmt(l).Style().SetBorder2(1, gwu.BRD_STYLE_DASHED, gwu.CLR_NAVY)
l = gwu.NewLabel("user/pass: admin/a")
l.Style().SetFontSize("80%").SetFontStyle(gwu.FONT_STYLE_ITALIC)
p.Add(l)
errL := gwu.NewLabel("")
errL.Style().SetColor(gwu.CLR_RED)
p.Add(errL)
table := gwu.NewTable()
table.SetCellPadding(2)
table.EnsureSize(2, 2)
table.Add(gwu.NewLabel("User name:"), 0, 0)
tb := gwu.NewTextBox("")
tb.Style().SetWidthPx(160)
table.Add(tb, 0, 1)
table.Add(gwu.NewLabel("Password:"******"")
pb.Style().SetWidthPx(160)
table.Add(pb, 1, 1)
p.Add(table)
b := gwu.NewButton("OK")
b.AddEHandlerFunc(func(e gwu.Event) {
if tb.Text() == "admin" && pb.Text() == "a" {
e.Session().RemoveWin(win) // Login win is removed, password will not be retrievable from the browser
buildPrivateWins(e.Session())
e.ReloadWin("main")
} else {
e.SetFocusedComp(tb)
errL.SetText("Invalid user name or password!")
e.MarkDirty(errL)
}
}, gwu.ETYPE_CLICK)
p.Add(b)
l = gwu.NewLabel("")
p.Add(l)
p.CellFmt(l).Style().SetHeightPx(200)
win.Add(p)
win.SetFocusedCompId(tb.Id())
p = gwu.NewPanel()
p.SetLayout(gwu.LAYOUT_HORIZONTAL)
p.SetCellPadding(2)
p.Add(gwu.NewLabel("Here's an ON/OFF switch which enables/disables the other one:"))
sw := gwu.NewSwitchButton()
sw.SetOnOff("ENB", "DISB")
sw.SetState(true)
p.Add(sw)
p.Add(gwu.NewLabel("And the other one:"))
sw2 := gwu.NewSwitchButton()
sw2.SetEnabled(true)
sw2.Style().SetWidthPx(100)
p.Add(sw2)
sw.AddEHandlerFunc(func(e gwu.Event) {
sw2.SetEnabled(sw.State())
e.MarkDirty(sw2)
}, gwu.ETYPE_CLICK)
win.Add(p)
s.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
}