func (mw *MyMainWindow) openImage() error {
dlg := new(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, err := dlg.ShowOpen(mw); err != nil {
return err
} else if !ok {
return nil
}
mw.prevFilePath = dlg.FilePath
img, err := walk.NewImageFromFile(dlg.FilePath)
if err != nil {
return err
}
var succeeded bool
defer func() {
if !succeeded {
img.Dispose()
}
}()
page, err := walk.NewTabPage()
if err != nil {
return err
}
if page.SetTitle(path.Base(strings.Replace(dlg.FilePath, "\\", "/", -1))); err != nil {
return err
}
func (tp TabPage) Create(builder *Builder) error {
w, err := walk.NewTabPage()
if err != nil {
return err
}
return builder.InitWidget(tp, w, func() error {
if err := w.SetImage(tp.Image); err != nil {
return err
}
if tp.Content != nil && len(tp.Children) == 0 {
if err := tp.Content.Create(builder); err != nil {
return err
}
}
if tp.AssignTo != nil {
*tp.AssignTo = w
}
return nil
})
}