Fix box and VR keys.

Normand Briere

2019-08-16 64e20f390e4b8e58bd0006dde8fa10fba1dac1d5

 cTree.java
..
..
@@ -20,7 +20,12 @@
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         {
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             public void mousePressed(MouseEvent e)
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             {
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-                if (e.isPopupTrigger()) {
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+                //if (e.isPopupTrigger()) // Works only on mouse released on Windows.
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+                if ((e.getModifiers() & InputEvent.BUTTON3_MASK) == InputEvent.BUTTON3_MASK)
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+                {
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+                    int row = getClosestRowForLocation(e.getX(), e.getY());
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+                    if (!isRowSelected(row))
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+                        setSelectionRow(row);
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                     popup.show((JComponent) e.getSource(), e.getX(), e.getY());
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                 }
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             }