Esempio n. 1
0
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
}
Esempio n. 2
0
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()
}