Java Utililty Methods JTextComponent Tab

List of utility methods to do JTextComponent Tab

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Description

The list of methods to do JTextComponent Tab are organized into topic(s).

Method

voiddisableTab(final JTextComponent txtComp)
Disable the tab key for text components. 
txtComp.setFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, null);
txtComp.setFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, null);
StringgetTab(JTextComponent target)
Return a string with number of spaces equal to the tab-stop of the TextComponent 
return SPACES.substring(0, getTabSize(target));
intgetTabSize(JTextComponent text)
Return the TabStop property for the given text component, or 0 if not used 
Integer tabs = (Integer) text.getDocument().getProperty(PlainDocument.tabSizeAttribute);
return (null == tabs) ? 0 : tabs.intValue();
voidpaintAboveline(Graphics g, JTextComponent tc, int pos0, int pos1)
paint Aboveline 
g.setColor(Color.GREEN.darker());
TextUI ui = tc.getUI();
Rectangle r = ui.modelToView(tc, pos1 + 1);
int h = r.y;
int max = r.x - 2 + 1;
int current = ui.modelToView(tc, pos0).x - 1;
g.drawLine(current, h, max, h);
g.drawLine(current, h + 1, current, h + 2);
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