Merging files of release 0.7.0.

examples/doc.go

@@ -0,0 +1,19 @@
+// Copyright (C) 2013 Andras Belicza. All rights reserved.
+// 
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+// 
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+/*
+Package examples contains example applications using/showcasing Gowut.
+*/
+package examples

examples/login_demo.go

@@ -0,0 +1,352 @@
+// Copyright (C) 2013 Andras Belicza. All rights reserved.
+// 
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+// 
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+// A GWU example application with login window and session management.
+
+package main
+
+import (
+	"code.google.com/p/gowut/gwu"
+	"fmt"
+	"log"
+	"math/rand"
+	"os"
+	"strconv"
+)
+
+type MyButtonHandler struct {
+	counter int
+	text    string
+}
+
+func (h *MyButtonHandler) HandleEvent(e gwu.Event) {
+	// Check if event source is a Button, just to be sure...
+	// We add this handler to a button only, so this'll be always false.
+	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)
+	}
+}
+
+type GreenHandler int
+
+func (h *GreenHandler) HandleEvent(e gwu.Event) {
+	var state bool
+	src := e.Src()
+
+	switch c := src.(type) {
+	case gwu.CheckBox:
+		state = c.State()
+	case gwu.RadioButton:
+		state = c.State()
+	}
+
+	if state {
+		src.Style().SetBackground(gwu.CLR_GREEN)
+	} else {
+		src.Style().SetBackground("")
+	}
+	e.MarkDirty(src)
+}
+
+var greenHandler_ = GreenHandler(0)
+var greenHandler = &greenHandler_
+
+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:"), 1, 0)
+	pb := gwu.NewPasswBox("")
+	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)
+}
+
+type SessHandler struct{}
+
+func (h SessHandler) Created(s gwu.Session) {
+	fmt.Println("SESSION created:", s.Id())
+	buildLoginWin(s)
+}
+
+func (h SessHandler) Removed(s gwu.Session) {
+	fmt.Println("SESSION removed:", s.Id())
+}
+
+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:"))
+	b := gwu.NewButton("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
+	}
+}