func main() {
walk.Initialize(walk.InitParams{PanicOnError: true})
defer walk.Shutdown()
mw, _ := walk.NewMainWindow()
mw.SetTitle("Walk External Widgets Example")
mw.SetLayout(walk.NewHBoxLayout())
a, _ := NewMyWidget(mw)
a.SetName("a")
b, _ := NewMyWidget(mw)
b.SetName("b")
c, _ := NewMyWidget(mw)
c.SetName("c")
mpb, _ := NewMyPushButton(mw)
mpb.SetText("MyPushButton")
mw.SetSize(walk.Size{400, 300})
mw.Show()
mw.Run()
}
func (hb HBox) Create() (walk.Layout, error) {
l := walk.NewHBoxLayout()
if err := setLayoutMargins(l, hb.Margins, hb.MarginsZero); err != nil {
return nil, err
}
if err := setLayoutSpacing(l, hb.Spacing, hb.SpacingZero); err != nil {
return nil, err
}
return l, nil
}
func (tw TabWidget) Create(parent walk.Container) error {
w, err := walk.NewTabWidget(parent)
if err != nil {
return err
}
return InitWidget(tw, w, func() error {
for i, page := range tw.Pages {
wp, err := walk.NewTabPage()
if err != nil {
return err
}
if len(tw.PageTitles) > i {
if err := wp.SetTitle(tw.PageTitles[i]); err != nil {
return err
}
}
if err := w.Pages().Add(wp); err != nil {
return err
}
l := walk.NewHBoxLayout()
m := tw.Margins
if !tw.MarginsZero && m.isZero() {
m = Margins{9, 9, 9, 9}
}
if err := l.SetMargins(m.toW()); err != nil {
return err
}
if err := wp.SetLayout(l); err != nil {
return err
}
if err := page.Create(wp); err != nil {
return err
}
}
if tw.AssignTo != nil {
*tw.AssignTo = w
}
return nil
})
}
func (mw *MainWindow) openImage() {
dlg := &walk.FileDialog{}
dlg.FilePath = mw.prevFilePath
dlg.Filter = "Image Files (*.emf;*.bmp;*.exif;*.gif;*.jpeg;*.jpg;*.png;*.tiff)|*.emf;*.bmp;*.exif;*.gif;*.jpeg;*.jpg;*.png;*.tiff"
dlg.Title = "Select an Image"
if ok, _ := dlg.ShowOpen(mw); !ok {
return
}
mw.prevFilePath = dlg.FilePath
img, _ := walk.NewImageFromFile(dlg.FilePath)
var succeeded bool
defer func() {
if !succeeded {
img.Dispose()
}
}()
page, _ := walk.NewTabPage()
page.SetTitle(path.Base(strings.Replace(dlg.FilePath, "\\", "/", -1)))
page.SetLayout(walk.NewHBoxLayout())
defer func() {
if !succeeded {
page.Dispose()
}
}()
imageView, _ := walk.NewImageView(page)
defer func() {
if !succeeded {
imageView.Dispose()
}
}()
imageView.SetImage(img)
mw.tabWidget.Pages().Add(page)
mw.tabWidget.SetCurrentIndex(mw.tabWidget.Pages().Len() - 1)
succeeded = true
}
func main() {
walk.Initialize(walk.InitParams{PanicOnError: true})
defer walk.Shutdown()
mainWnd, _ := walk.NewMainWindow()
mw := &MainWindow{
MainWindow: mainWnd,
fileInfoModel: &FileInfoModel{},
}
mw.SetTitle("Walk File Browser Example")
mw.SetLayout(walk.NewHBoxLayout())
fileMenu, _ := walk.NewMenu()
fileMenuAction, _ := mw.Menu().Actions().AddMenu(fileMenu)
fileMenuAction.SetText("&File")
exitAction := walk.NewAction()
exitAction.SetText("E&xit")
exitAction.Triggered().Attach(func() { walk.App().Exit(0) })
fileMenu.Actions().Add(exitAction)
helpMenu, _ := walk.NewMenu()
helpMenuAction, _ := mw.Menu().Actions().AddMenu(helpMenu)
helpMenuAction.SetText("&Help")
aboutAction := walk.NewAction()
aboutAction.SetText("&About")
aboutAction.Triggered().Attach(func() {
walk.MsgBox(mw, "About", "Walk File Browser Example", walk.MsgBoxOK|walk.MsgBoxIconInformation)
})
helpMenu.Actions().Add(aboutAction)
splitter, _ := walk.NewSplitter(mw)
mw.treeView, _ = walk.NewTreeView(splitter)
mw.treeView.ItemExpanded().Attach(func(item *walk.TreeViewItem) {
children := item.Children()
if children.Len() == 1 && children.At(0).Text() == "" {
mw.populateTreeViewItem(item)
}
})
mw.treeView.SelectionChanged().Attach(func(old, new *walk.TreeViewItem) {
mw.selTvwItem = new
mw.showError(mw.fileInfoModel.ResetRows(pathForTreeViewItem(new)))
})
drives, _ := walk.DriveNames()
mw.treeView.SetSuspended(true)
for _, drive := range drives {
driveItem := newTreeViewItem(drive[:2])
mw.treeView.Items().Add(driveItem)
}
mw.treeView.SetSuspended(false)
mw.tableView, _ = walk.NewTableView(splitter)
mw.tableView.SetModel(mw.fileInfoModel)
mw.tableView.SetSingleItemSelection(true)
mw.tableView.CurrentIndexChanged().Attach(func() {
var url string
index := mw.tableView.CurrentIndex()
if index > -1 {
name := mw.fileInfoModel.items[index].Name
url = path.Join(pathForTreeViewItem(mw.selTvwItem), name)
}
mw.preview.SetURL(url)
})
mw.preview, _ = walk.NewWebView(splitter)
mw.SetMinMaxSize(walk.Size{600, 400}, walk.Size{})
mw.SetSize(walk.Size{800, 600})
mw.Show()
mw.Run()
}
func showImage(owner walk.Form, tabWidget *walk.TabWidget) {
dlgf := new(walk.FileDialog)
dlgf.FilePath = ""
dlgf.Filter = "Image Files (*.emf;*.bmp;*.exif;*.gif;*.jpeg;*.jpg;*.png;*.tiff)|*.emf;*.bmp;*.exif;*.gif;*.jpeg;*.jpg;*.png;*.tiff"
dlgf.Title = "Select an Image"
if ok, err := dlgf.ShowOpen(owner); err != nil {
log.Print(err)
} else if !ok {
//return nil
}
//walk.MsgBox(nil, "文件路径", dlgf.FilePath, walk.MsgBoxOK)
img, err := walk.NewImageFromFile(dlgf.FilePath)
if err != nil {
log.Print(err)
}
var succeeded bool
defer func() {
if !succeeded {
img.Dispose()
}
}()
page, err := walk.NewTabPage()
if err != nil {
log.Print(err)
}
//if page.SetTitle(path.Base(strings.Replace(dlgf.FilePath, "\\", "/", -1))); err != nil {
// log.Print(err)
//}
page.SetLayout(walk.NewHBoxLayout())
defer func() {
if !succeeded {
page.Dispose()
}
}()
imageView, err := walk.NewImageView(page)
if err != nil {
log.Print(err)
}
defer func() {
if !succeeded {
imageView.Dispose()
}
}()
imageView.SetImage(img)
if err := tabWidget.Pages().Add(page); err != nil {
log.Print(err)
}
if err := tabWidget.SetCurrentIndex(tabWidget.Pages().Len() - 1); err != nil {
log.Print(err)
}
succeeded = true
}