func NewFooModel() *FooModel {
m := new(FooModel)
m.evenBitmap, _ = walk.NewBitmapFromFile("../img/open.png")
m.oddIcon, _ = walk.NewIconFromFile("../img/x.ico")
m.ResetRows()
return m
}
func createBitmap() (*walk.Bitmap, error) {
bounds := walk.Rectangle{Width: 200, Height: 200}
bmp, err := walk.NewBitmap(bounds.Size())
if err != nil {
return nil, err
}
succeeded := false
defer func() {
if !succeeded {
bmp.Dispose()
}
}()
canvas, err := walk.NewCanvasFromImage(bmp)
if err != nil {
return nil, err
}
defer canvas.Dispose()
brushBmp, err := walk.NewBitmapFromFile("../img/plus.png")
if err != nil {
return nil, err
}
defer brushBmp.Dispose()
brush, err := walk.NewBitmapBrush(brushBmp)
if err != nil {
return nil, err
}
defer brush.Dispose()
if err := canvas.FillRectangle(brush, bounds); err != nil {
return nil, err
}
font, err := walk.NewFont("Times New Roman", 40, walk.FontBold|walk.FontItalic)
if err != nil {
return nil, err
}
defer font.Dispose()
if err := canvas.DrawText("Walk Drawing Example", font, walk.RGB(0, 0, 0), bounds, walk.TextWordbreak); err != nil {
return nil, err
}
succeeded = true
return bmp, nil
}
func setActionImage(action *walk.Action, image interface{}) (err error) {
var img *walk.Bitmap
switch image := image.(type) {
case nil:
return nil
case *walk.Bitmap:
img = image
case string:
if img, err = walk.NewBitmapFromFile(image); err != nil {
return
}
default:
return errors.New("invalid type for Image")
}
return action.SetImage(img)
}