Thomas,
I'm sorry, I cut/pasted pieces of code to try to reduce the amount of code
in the email.
( * * see note at bottom)
The GVTTree is built once here:
public void gvtBuildCompleted(GVTTreeBuilderEvent e) {
UserAgentAdapter userAgent = new UserAgentAdapter();
GVTBuilder builder = new GVTBuilder();
BridgeContext ctx = new BridgeContext(userAgent);
ctx.setDynamic(true);
builder.build(ctx, theDocument); // built here
(once)
theSVGModel.setBridgeContext(ctx); //register this
reference with the model
// Now the tree is ready
treeWalker = new GVTTreeWalker(e.getGVTRoot());
theSVGModel.setGVTTreeWalker(treeWalker); //register
reference with the model
Over in the model, in a routine called from a DnD dragOver, I have an X, Y
coordinate (mouse pos) :
GraphicsNode root = theGVTTreeWalker.getRoot(); // get the GVT
root
Point point = new Point(nowToX, nowToY); //
make a Point from the x,y (current mouse pos)
GraphicsNode childGNode = root.nodeHitAt(point); // use the Point
to get the rectangle under mouse
// note: this works, childGNode has all the correct attributes
// from the GVT node, I need to get the DOM element
Element svgElement = theBridgeContext.getElement(childGNode); //
this comes up null every time
Ultimately, I need the "id" attribute of the group that this rectangle
belongs to (see below)
My intent was to follow the parent chain to the topmost group and do this:
/// String targetNodeID = svgElement.getAttribute("id");
Here's the snipped SVG group - there are HUNDREDS of these in this
auto-generated file!:
||||||| I need the value of this attribute
vvvvvvv
<g id="guid_F917D459-6947-4C77-874B-9FED41DF5492">
<g transform="translate(50,30)" style="font-size:11;
fill:rgb(230,230,245); font-family:'Arial'
stroke:rgb(230,230,245); stroke-width:1.5;">
<rect x="180" y="189" width="35.2494" style="stroke:none;" height="63"
/>
<rect x="180" y="189" width="35.2494" style="fill:none;
stroke:rgb(0,0,205);" height="63" />
<text x="184.62469482421875" y="200" style="font-size:9; fill:black;
stroke:none;" xml:space="preserve">R6/Z1
</text>
<text x="181.62469482421875" y="218" style="font-size:8; fill:black;
stroke:none;" xml:space="preserve">W1:19.00
</text>
<text x="181.62469482421875" y="226" style="font-size:8; fill:black;
stroke:none;" xml:space="preserve">W2:13.00
</text>
</g>
</g>
* * Thanks for your patience, I hope this makes more sense. I am starting
to think that I will need to abandon this approach,
and iterate throught the DOM elements, comparing X,Y coordinates...
uggh... ; P
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