Re: can gwt work with javax.swing.* ?
GWT gets translated to Javascript. Now, you might argue So? I heard Swing is pure Java. Why can't SWING by translated by the compiler to JS? The answer is because while Swing is pure Java, it is layered on top of AWT which is anything BUT pure Java. Thinking SWT? Don't go there. Like Swing it also uses native methods (real native methods (calls to C code), not JSNI) too. Where Swing and SWT ultimately make calls to native heavyweight platform specific components, GWT makes calls to the browsers dom handling interfaces via Javascript. db On Jan 10, 2:31 pm, mikedshaf...@gmail.com mikedshaf...@gmail.com wrote: OK, one of the things that you have to wrap your head around is how GWT works. You write GWT using Java, but then the GWT compiler converts this into Javascript HTML. It can only do this to Java that it specifically knows about. Your Swing JLabel component is not something GWT understands and therefore it can't compile it out into Javascript. The strength of GWT is that you develop in Java, but if your code is going to be run in the browser, it has to be Java that is compatible with the GWT Compiler. Hope this helps. Later, Shaffer On Jan 10, 1:32 am, mars marsg...@gmail.com wrote: hi, all i m developing an gwt(actually gwt-ext) application, and need to use an external package which is mainly written with java awt and javax swing. when i try to add that swing component to gwt panel, it won't pass through my question is 'does gwt work with swing'? my code is as below: ChartViewer viewer = new ChartViewer(); (ChartViewer is a subclass of the SWING JLabel component.) createChart(viewer, 0); VerticalPanel mainPanel = new VerticalPanel(); mainPanel.add(viewer); --- this one won't pass through please give me some help. thanks! --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: can gwt work with javax.swing.* ?
Hi, Though what you are saying is perfectly right there are on going efforts in Eclipse 4.x (short e4) to provide an SWT-implementation for RIA toolkits like GWT, Flex, ... . Tom DaBlick schrieb: GWT gets translated to Javascript. Now, you might argue So? I heard Swing is pure Java. Why can't SWING by translated by the compiler to JS? The answer is because while Swing is pure Java, it is layered on top of AWT which is anything BUT pure Java. Thinking SWT? Don't go there. Like Swing it also uses native methods (real native methods (calls to C code), not JSNI) too. Where Swing and SWT ultimately make calls to native heavyweight platform specific components, GWT makes calls to the browsers dom handling interfaces via Javascript. db On Jan 10, 2:31 pm, mikedshaf...@gmail.com mikedshaf...@gmail.com wrote: OK, one of the things that you have to wrap your head around is how GWT works. You write GWT using Java, but then the GWT compiler converts this into Javascript HTML. It can only do this to Java that it specifically knows about. Your Swing JLabel component is not something GWT understands and therefore it can't compile it out into Javascript. The strength of GWT is that you develop in Java, but if your code is going to be run in the browser, it has to be Java that is compatible with the GWT Compiler. Hope this helps. Later, Shaffer On Jan 10, 1:32 am, mars marsg...@gmail.com wrote: hi, all i m developing an gwt(actually gwt-ext) application, and need to use an external package which is mainly written with java awt and javax swing. when i try to add that swing component to gwt panel, it won't pass through my question is 'does gwt work with swing'? my code is as below: ChartViewer viewer = new ChartViewer(); (ChartViewer is a subclass of the SWING JLabel component.) createChart(viewer, 0); VerticalPanel mainPanel = new VerticalPanel(); mainPanel.add(viewer); --- this one won't pass through please give me some help. thanks! --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: can gwt work with javax.swing.* ?
OK, one of the things that you have to wrap your head around is how GWT works. You write GWT using Java, but then the GWT compiler converts this into Javascript HTML. It can only do this to Java that it specifically knows about. Your Swing JLabel component is not something GWT understands and therefore it can't compile it out into Javascript. The strength of GWT is that you develop in Java, but if your code is going to be run in the browser, it has to be Java that is compatible with the GWT Compiler. Hope this helps. Later, Shaffer On Jan 10, 1:32 am, mars marsg...@gmail.com wrote: hi, all i m developing an gwt(actually gwt-ext) application, and need to use an external package which is mainly written with java awt and javax swing. when i try to add that swing component to gwt panel, it won't pass through my question is 'does gwt work with swing'? my code is as below: ChartViewer viewer = new ChartViewer(); (ChartViewer is a subclass of the SWING JLabel component.) createChart(viewer, 0); VerticalPanel mainPanel = new VerticalPanel(); mainPanel.add(viewer); --- this one won't pass through please give me some help. thanks! --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
