// Draw the image frame with certain parameters.
func Draw(gc draw2d.GraphicContext, png string,
dw, dh, margin, lineWidth float64) error {
// Draw frame
draw2dkit.RoundedRectangle(gc, lineWidth, lineWidth, dw-lineWidth, dh-lineWidth, 100, 100)
gc.SetLineWidth(lineWidth)
gc.FillStroke()
// load the source image
source, err := draw2dimg.LoadFromPngFile(png)
if err != nil {
return err
}
// Size of source image
sw, sh := float64(source.Bounds().Dx()), float64(source.Bounds().Dy())
// Draw image to fit in the frame
// TODO Seems to have a transform bug here on draw image
scale := math.Min((dw-margin*2)/sw, (dh-margin*2)/sh)
gc.Save()
gc.Translate((dw-sw*scale)/2, (dh-sh*scale)/2)
gc.Scale(scale, scale)
gc.Rotate(0.2)
gc.DrawImage(source)
gc.Restore()
return nil
}