How to access specific java.awt.Color constructor?
Hi, I'm trying to create a java.awt.Color class instance from within Clojure, using this constructor: Color(ColorSpace cspace, float[] components, float alpha) But always end up with a No matching ctor found for class java.awt.Color exception. I can create the ColorSpace instance as I expected, but I think I'm missing something with the rest of the Color constructor. I've tried changing the components to a vector of floats or a Java array of floats with no luck. This is with Clojure 1.2 and the Java Platform SE 6 AWT classes. Any advice much appreciated. Stu -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: How to access specific java.awt.Color constructor?
Can you show a bit more of the code you have so we can see what you've tried? On Sat, Apr 9, 2011 at 3:13 PM, stu stuart.hungerf...@gmail.com wrote: I'm trying to create a java.awt.Color class instance from within Clojure, using this constructor: Color(ColorSpace cspace, float[] components, float alpha) But always end up with a No matching ctor found for class java.awt.Color exception. I can create the ColorSpace instance as I expected, but I think I'm missing something with the rest of the Color constructor. I've tried changing the components to a vector of floats or a Java array of floats with no luck. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: How to access specific java.awt.Color constructor?
You probably weren't putting it into a java float array, but instead a Float array (boxed type). Here's a repl session doing what you want. I don't know anything about colorspaces so it's probably nonsense, but it creates a Color with that constructor. user= (import '(java.awt.color ICC_Profile ColorSpace ICC_ColorSpace) java.awt.Color) java.awt.Color user= (def prf (ICC_Profile/getInstance (ColorSpace/CS_sRGB))) #'user/prf user= (def spc (ICC_ColorSpace. prf)) #'user/spc user= (class spc) java.awt.color.ICC_ColorSpace ;; the magic words user= (def c (Color. spc (float-array [1 1 1]) (float 1))) #'user/c user= (def c (Color. spc (into-array Float/TYPE [1 1 1]) (float 1))) #'user/c On Apr 9, 3:21 pm, Sean Corfield seancorfi...@gmail.com wrote: Can you show a bit more of the code you have so we can see what you've tried? On Sat, Apr 9, 2011 at 3:13 PM, stu stuart.hungerf...@gmail.com wrote: I'm trying to create a java.awt.Color class instance from within Clojure, using this constructor: Color(ColorSpace cspace, float[] components, float alpha) But always end up with a No matching ctor found for class java.awt.Color exception. I can create the ColorSpace instance as I expected, but I think I'm missing something with the rest of the Color constructor. I've tried changing the components to a vector of floats or a Java array of floats with no luck. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: How to access specific java.awt.Color constructor?
On Apr 10, 8:35 am, Alan a...@malloys.org wrote: You probably weren't putting it into a java float array, but instead a Float array (boxed type). Here's a repl session doing what you want. I don't know anything about colorspaces so it's probably nonsense, but it creates a Color with that constructor. Thanks Alan -- I realize now there's a subtle but important distinction there when doing Java interop. Stu -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
