JMapPane: Labels not displayed when a layer is hidden then shown
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Key: GEOT-2920
URL: http://jira.codehaus.org/browse/GEOT-2920
Project: GeoTools
Issue Type: Bug
Components: ext mappane
Affects Versions: 2.6.0
Reporter: Michael Bedward
Assignee: Michael Bedward
Fix For: 2.6.2, 2.7-M0
Copy of report on the user list posted by Oliver Gottwald...
a number of attempts where made to get the labels to appear and not appear from
a legend via layer setVisible(true) and setVisible(false)
the assumption is that after a window size that labels will then be changed.
unfortunately that will not work on my end
the issue is with the labelCache.clear() (which labelCache is unfortunately
private) in JMapPane needs to be called.
The following is a solution:
before STEP #2 below I do the following:
Note: wrappedPane is my JMapPane
STEP #1
wrappedPane.dispatchEvent(
new ComponentEvent(wrappedPane,
ComponentEvent.COMPONENT_RESIZED));
doing the above line will get your displayArea and also call labelCache.clear();
which should eliminate the resize on the window
STEP #2
//i have timing related things going on so I have code for the repaint like
this:
ReferencedEnvelope displayArea = wrappedPane.getDisplayArea();
if (displayArea == null) {
wrappedPane.repaint();
} else {
System.out.println("FIRED DisplayArea refresh");
wrappedPane.setDisplayArea(displayArea);
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