Patrick Hurley
2/2/2006 7:20:00 PM
On 2/2/06, Patrick Hurley <phurley@gmail.com> wrote:
> 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
>
>
At the risk of talking to myself too much. Here is the cleaned up solution:
class FXScaledImageFrame < FXImageFrame
def initialize(parent, img, opts =
FRAME_SUNKEN|FRAME_THICK,x=0,y=0,w=0,h=0,pl=0,pr=0,pt=0,pb=0)
@img = img
FXMemoryStream.open(FXStreamSave, nil) do |stream|
@img.savePixels(stream)
@buffer = stream.takeBuffer
end
super
self.connect(SEL_CONFIGURE) do |sender, sel, evt|
if width > 1 and height > 1
FXMemoryStream.open(FXStreamLoad, @buffer) do |stream|
@img.loadPixels(stream)
end
@img.scale(width, height)
end
end
yield self if block_given?
end
end