Scale the imageview? On Aug 9, 2013, at 8:57 PM, John Hendrikx <hj...@xs4all.nl> wrote:
> On 10/08/2013 05:46, John Hendrikx wrote: >> On 9/08/2013 20:15, Richard Bair wrote: >>>> Also the proposed clear() or empty() option only applies to Canvas correct? >>>> i.e. WritableImages don't suffer from these kind of issues and don't >>>> require such methods? >>> That is correct (WritableImage we don't provide a 2D API to use to fill the >>> buffer, you just bash the pixels yourself however you like, so we don't >>> have to buffer anything up). >> Hm, I didn't realize WritableImage had the same kind PixelWriter interface. >> For my usecase, where I just render full frames to a PixelWriter so JavaFX >> can display them in some fashion, why should I not use a WriteableImage >> instead? >> >> Looking at the docs, I see that one limitation is that the WritableImage >> cannot be resized after construction (something that I do use with Canvas), >> but I think I could work around that by just recreating the Image when its >> size changes... I could just wrap a class around it that does this >> transparently. >> >> Going to take a look if I can rip out the Canvas code and replace it with a >> resizable WritableImage and see what the results are for full screen video >> playback... > Foiled before I even could get started :/ > > I need the scaleX and scaleY properties of Canvas as well... basically, my > input video data is always decoded at native size (say 1920x1080) and then > scaled down or up to fit the screen. Since I offer a feature that can switch > to a different attached monitor at any time, even during playback, I cannot > tell my video source to scale the video for me (it does not offer a way to > alter this after playback starts). I haven't given up entirely on > WritableImage, but this complicates sufficiently that I cannot just create a > drop-in replacement for Canvas that suits my usecase. > > --John > >
