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);
}
-----Original Message-----
From: "Oliver Gottwald" <[email protected]>
Sent: Tuesday, January 12, 2010 11:34am
To: "geouser" <[email protected]>
Subject: [Geotools-gt2-users] JMapPane.repaint() label issue
hi,
currently i have a legend.
if i turn off the checkbox in the legend:
layer.setVisible(false);
later in the process:
wrappedPane.repaint();
.....wrappedPane is my JMapPane
if i turn on the checkbox in the legend
layer.setVisible(true)
later in the process:
wrappedPane.repaint();
oddly the points disappear and reappear but the labels do not.
i know there is a wrappedPane.reset(); but i think that gives full extent on
reset.
does this have to do with the labelCache of JMapPane?
what steps should i take on a setVisible for a layer to get my JMapPane to
repaint correctly?
oliver
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