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 (tb ToolButton) Create(builder *Builder) error {
w, err := walk.NewToolButton(builder.Parent())
if err != nil {
return err
}
return builder.InitWidget(tb, w, func() error {
img := tb.Image
if s, ok := img.(string); ok {
var err error
if img, err = walk.NewImageFromFile(s); err != nil {
return err
}
}
if img != nil {
if err := w.SetImage(img.(walk.Image)); err != nil {
return err
}
}
if tb.OnClicked != nil {
w.Clicked().Attach(tb.OnClicked)
}
if tb.AssignTo != nil {
*tb.AssignTo = w
}
return nil
})
}
func imageFromFile(filePath string) (walk.Image, error) {
if image, ok := imagesByFilePath[filePath]; ok {
return image, nil
}
image, err := walk.NewImageFromFile(filePath)
if err != nil {
return nil, err
}
imagesByFilePath[filePath] = image
return image, 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 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
}