/**
* sets the number of characters per tab.
*
* @param charactersPerTab the characters per tab
*/
public void setTabs(int charactersPerTab) {
Font f = new Font(m_FontName, Font.PLAIN, m_FontSize);
FontMetrics fm = Toolkit.getDefaultToolkit().getFontMetrics(f);
int charWidth = fm.charWidth('w');
int tabWidth = charWidth * charactersPerTab;
TabStop[] tabs = new TabStop[MAX_TABS];
for (int j = 0; j < tabs.length; j++) tabs[j] = new TabStop((j + 1) * tabWidth);
TabSet tabSet = new TabSet(tabs);
SimpleAttributeSet attributes = new SimpleAttributeSet();
StyleConstants.setTabSet(attributes, tabSet);
int length = getLength();
setParagraphAttributes(0, length, attributes, false);
}
private void setTabSize(int charactersPerTab) {
FontMetrics fm = this.getFontMetrics(this.getFont());
int charWidth = fm.charWidth('w');
int tabWidth = charWidth * charactersPerTab;
TabStop[] tabs = new TabStop[10];
for (int j = 0; j < tabs.length; j++) {
int tab = j + 1;
tabs[j] = new TabStop(tab * tabWidth);
}
TabSet tabSet = new TabSet(tabs);
SimpleAttributeSet attributes = new SimpleAttributeSet();
StyleConstants.setFontSize(attributes, 18);
StyleConstants.setFontFamily(attributes, "Osaka-Mono");
StyleConstants.setTabSet(attributes, tabSet);
int length = getDocument().getLength();
getStyledDocument().setParagraphAttributes(0, length, attributes, true);
}