func createBitmap() *walk.Bitmap {
bounds := walk.Rectangle{Width: 200, Height: 200}
bmp, _ := walk.NewBitmap(bounds.Size())
succeeded := false
defer func() {
if !succeeded {
bmp.Dispose()
}
}()
canvas, _ := walk.NewCanvasFromImage(bmp)
defer canvas.Dispose()
brushBmp, _ := walk.NewBitmapFromFile("../img/plus.png")
defer brushBmp.Dispose()
brush, _ := walk.NewBitmapBrush(brushBmp)
defer brush.Dispose()
canvas.FillRectangle(brush, bounds)
font, _ := walk.NewFont("Times New Roman", 40, walk.FontBold|walk.FontItalic)
defer font.Dispose()
canvas.DrawText("Walk Drawing Example", font, walk.RGB(0, 0, 0), bounds, walk.TextWordbreak)
succeeded = true
return bmp
}
func main() {
walk.Initialize(walk.InitParams{PanicOnError: true})
defer walk.Shutdown()
mainWnd, _ := walk.NewMainWindow()
mw := &MainWindow{MainWindow: mainWnd}
mw.SetLayout(walk.NewVBoxLayout())
mw.SetTitle("Walk Image Viewer Example")
mw.tabWidget, _ = walk.NewTabWidget(mw)
imageList, _ := walk.NewImageList(walk.Size{16, 16}, 0)
mw.ToolBar().SetImageList(imageList)
fileMenu, _ := walk.NewMenu()
fileMenuAction, _ := mw.Menu().Actions().AddMenu(fileMenu)
fileMenuAction.SetText("&File")
openBmp, _ := walk.NewBitmapFromFile("../img/open.png")
openAction := walk.NewAction()
openAction.SetImage(openBmp)
openAction.SetText("&Open")
openAction.Triggered().Attach(func() { mw.openImage() })
fileMenu.Actions().Add(openAction)
mw.ToolBar().Actions().Add(openAction)
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 Image Viewer Example", walk.MsgBoxOK|walk.MsgBoxIconInformation)
})
helpMenu.Actions().Add(aboutAction)
mw.SetMinMaxSize(walk.Size{320, 240}, walk.Size{})
mw.SetSize(walk.Size{800, 600})
mw.Show()
mw.Run()
}