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main.go
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main.go
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// Copyright 2017 The Walk Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"bytes"
)
import (
"github.com/lxn/walk"
. "github.com/lxn/walk/declarative"
)
func main() {
walk.Resources.SetRootDirPath("../img")
mw := new(AppMainWindow)
cfg := &MultiPageMainWindowConfig{
Name: "mainWindow",
MinSize: Size{600, 400},
MenuItems: []MenuItem{
Menu{
Text: "&Help",
Items: []MenuItem{
Action{
Text: "About",
OnTriggered: func() { mw.aboutAction_Triggered() },
},
},
},
},
OnCurrentPageChanged: func() {
mw.updateTitle(mw.CurrentPageTitle())
},
PageCfgs: []PageConfig{
{"Foo", "document-new.png", newFooPage},
{"Bar", "document-properties.png", newBarPage},
{"Baz", "system-shutdown.png", newBazPage},
},
}
mpmw, err := NewMultiPageMainWindow(cfg)
if err != nil {
panic(err)
}
mw.MultiPageMainWindow = mpmw
mw.updateTitle(mw.CurrentPageTitle())
mw.Run()
}
type AppMainWindow struct {
*MultiPageMainWindow
}
func (mw *AppMainWindow) updateTitle(prefix string) {
var buf bytes.Buffer
if prefix != "" {
buf.WriteString(prefix)
buf.WriteString(" - ")
}
buf.WriteString("Walk Multiple Pages Example")
mw.SetTitle(buf.String())
}
func (mw *AppMainWindow) aboutAction_Triggered() {
walk.MsgBox(mw,
"About Walk Multiple Pages Example",
"An example that demonstrates a main window that supports multiple pages.",
walk.MsgBoxOK|walk.MsgBoxIconInformation)
}
type FooPage struct {
*walk.Composite
}
func newFooPage(parent walk.Container) (Page, error) {
p := new(FooPage)
if err := (Composite{
AssignTo: &p.Composite,
Name: "fooPage",
Layout: HBox{},
Children: []Widget{
HSpacer{},
Label{Text: "I'm the Foo page"},
HSpacer{},
},
}).Create(NewBuilder(parent)); err != nil {
return nil, err
}
if err := walk.InitWrapperWindow(p); err != nil {
return nil, err
}
return p, nil
}
type BarPage struct {
*walk.Composite
}
func newBarPage(parent walk.Container) (Page, error) {
p := new(BarPage)
if err := (Composite{
AssignTo: &p.Composite,
Name: "barPage",
Layout: HBox{},
Children: []Widget{
HSpacer{},
Label{Text: "I'm the Bar page"},
HSpacer{},
},
}).Create(NewBuilder(parent)); err != nil {
return nil, err
}
if err := walk.InitWrapperWindow(p); err != nil {
return nil, err
}
return p, nil
}
type BazPage struct {
*walk.Composite
}
func newBazPage(parent walk.Container) (Page, error) {
p := new(BazPage)
if err := (Composite{
AssignTo: &p.Composite,
Name: "bazPage",
Layout: HBox{},
Children: []Widget{
HSpacer{},
Label{Text: "I'm the Baz page"},
HSpacer{},
},
}).Create(NewBuilder(parent)); err != nil {
return nil, err
}
if err := walk.InitWrapperWindow(p); err != nil {
return nil, err
}
return p, nil
}