From: Patrick Hurley <phurley@...>
Date: 2006-02-03T03:22:16+09:00
Subject: Re: FXRuby Image Scaling question

On 2/2/06, Patrick Hurley <phurley@gmail.com> wrote:
> I have a screen with a logo on it, I would like the logo to scale with
> screen size. I have tried more than a couple variations on:
>
>     # Construct an image
>     @logo = FXPNGImage.new(getApp(), File.open("logo.png", "rb").read,
> IMAGE_KEEP)
>
>     # Prep an image Frame
>     image = FXImageFrame.new(self, @logo, LAYOUT_FILL_X | LAYOUT_FILL_Y)
>     image.backColor = FXColor::Blue
>
>     image.connect(SEL_CONFIGURE) do |sender, sel, evt|
>       if image.width > 100 && image.height > 100
>         @logo.scale(image.width, image.height)
>       end
>     end
>
> This works, but the image "degrades" from all the scaling. How would I
> go about keeping the original image? Any sort of "dup" on the FXImage
> results in an exception (at least for me).
>
> Thanks in advance
> pth
>
>

Ok I am still very interested if there is a better solution, but this
works for me:

    # Construct an image
    @logo = FXPNGImage.new(getApp(), File.open("logo.png", "rb").read,
IMAGE_KEEP)
    stream = FXMemoryStream.open(FXStreamSave,nil)
    @logo.savePixels(stream)
    puts stream
    @buffer = stream.takeBuffer
    stream.close
    p @buffer

    # Prep an image Frame
    image = FXImageFrame.new(self, @logo, LAYOUT_FILL_X | LAYOUT_FILL_Y)
    image.backColor = FXColor::Blue

    image.connect(SEL_CONFIGURE) do |sender, sel, evt|
      if image.width > 100 && image.height > 100
        stream = FXMemoryStream.open(FXStreamLoad, @buffer)
        @logo.loadPixels(stream)
        @logo.scale(image.width, image.height)
        stream.close
      end
    end
  end