Hi Sunburned - What might happen is that RendererManager always has one renderer called something like LayerRenderer which iterates over each layer's Styles.
Jon > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On > Behalf Of Sunburned Surveyor > Sent: Thursday, November 30, 2006 10:30 AM > To: List for discussion of JPP development and use. > Subject: Re: [JPP-Devel] OJ's rendering code... > > > Thanks for replying Jon. It looks like Larry was already able > to get to the bottom of the problem we were discussing. I'm > still curious about something though. Maybe you will have a > few minutes to help me out. > > You wrote: "If memory serves, LayerViewPanel's > RenderingManager loops through the LayerManager's layers. For > each layer it loops through the layer's Styles and calls > paint() on each one." > > Yes. I think that is this code: > > public void copyTo(Graphics2D destination) { > for (Iterator i = contentIDs().iterator(); i.hasNext();) { > Object contentID = i.next(); > > if (getRenderer(contentID) != null) { > getRenderer(contentID).copyTo(destination); > } > } > } > > Here is my question though. When and how does OJ assign a > Layer a Renderer. Is this done when a layer is created, or after? > > SS > > > On 11/29/06, Jonathan Aquino <[EMAIL PROTECTED]> wrote: > > Hi Sunburned - If memory serves, LayerViewPanel's RenderingManager > > loops through the LayerManager's layers. For each layer it loops > > through the layer's Styles and calls paint() on each one. > > > > Jon > > > > > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED] > On Behalf Of > > > Sunburned Surveyor > > > Sent: Wednesday, November 29, 2006 10:29 PM > > > To: List for discussion of JPP development and use. > > > Subject: [JPP-Devel] OJ's rendering code... > > > > > > > > > I feel like I'm in a maze with no exit... :] > > > > > > I've been going through OJ's rendering code for an hour or two. I > > > was hoping to find out some more about our double call to > > > BasicStyle.paint(). > > > > > > I don't think I'm going to get as near as far as I had hoped, > > > although I am throwing together some notes about the rendering > > > system I'll try to get on the wiki. > > > > > > There is one thing I haven't been able to figure out. At > what point, > > > and how, does OpenJUMP associate a Renderer with a Layer? I've > > > looked at the the RenderingMananger class, the > LayerManager class, > > > the LayerViewPanel class, the FeatureCollectionRenderer > class, and a > > > bunch of other classes, but I can't determine where this takes > > > place. > > > > > > At some point after a Layer is created, but before or at > the moment > > > it is made visible, OJ needs to decide which Renderer > will paint the > > > Layer's contents on the LayerViewPanel. > > > > > > Where is this done? > > > > > > Does each Renderer track what Layers it needs to paint, > or is this > > > done by the RendererMananger? > > > > > > Thanks for the help. > > > > > > The Sunburned Surveyor > > > > > > -------------------------------------------------------------- > > > ----------- > > > Take Surveys. Earn Cash. Influence the Future of IT > > > Join SourceForge.net's Techsay panel and you'll get the chance to > > > share your opinions on IT & business topics through brief > surveys - > > > and earn cash > > > http://www.techsay.com/default.php?page=join.php&p=sourceforge > > &CID=DEVDEV > > _______________________________________________ > > Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > > > > > > ---------------------------------------------------------------------- > > --- > > Take Surveys. Earn Cash. 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