de.invation.code.toval.graphic.component.FontComboBox Maven / Gradle / Ivy

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TOVAL comprises a set of java classes for common programming issues. It includes utils for arrays, lists, sets and collections for convenient handling and modification, but also support for mathematic definitions concerning logic (clauses + resolution) together with some algorithms for permutations, powersets and resolution. Additionally it contains a number of types for multisets, matrices with object keys and much more.

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package de.invation.code.toval.graphic.component;

import java.awt.Component;
import java.awt.Font;
import java.awt.GraphicsEnvironment;
import java.util.Arrays;
import java.util.Comparator;

import javax.swing.DefaultComboBoxModel;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.ListCellRenderer;

import de.invation.code.toval.validate.Validate;

public class FontComboBox extends JComboBox {
	
	private static final long serialVersionUID = -2088962747490626507L;

	public FontComboBox(DisplayMode displayMode){
		super();
		Validate.notNull(displayMode);
		GraphicsEnvironment e = GraphicsEnvironment.getLocalGraphicsEnvironment();
		if(displayMode == DisplayMode.FONT_NAME){
			Font[] availableFonts = e.getAllFonts();
			Arrays.sort(availableFonts, new LexicalFontComparator());
			setModel(new DefaultComboBoxModel(availableFonts));
		} else {
			setModel(new DefaultComboBoxModel(FontFamilyEnum.values()));
		}
	    setRenderer(new FontComboBoxCellRenderer(displayMode));
	}
	
	public FontComboBox(DisplayMode displayMode, String initialValue){
		this(displayMode);
		if(displayMode == DisplayMode.FONT_NAME){
			Font initialFont = Font.getFont(initialValue);
			setSelectedItem(initialFont);
		} else {
			setSelectedItem(initialValue);
		}
	}
	
	private class FontComboBoxCellRenderer extends JLabel implements ListCellRenderer {
		
		private static final long serialVersionUID = -8102511925600836012L;
		
		private DisplayMode displayMode = null;

		public FontComboBoxCellRenderer(DisplayMode displayMode){
			this.displayMode = displayMode;
			setOpaque(true);
	        setHorizontalAlignment(LEFT);
	        setVerticalAlignment(CENTER);
		}

		@Override
		public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
			if(displayMode == DisplayMode.FONT_NAME){
				setText(((Font) value).getFontName());
			} else {
				setText(value.toString());
			}
			return this;
		}
		
	}
	
	public enum DisplayMode {
		FONT_NAME, FONT_FAMILY;
	}
	
	private enum FontFamilyEnum {
		Dialog, DialogInput, Monospaced, SansSerif, Serif;
	}
	
	private class LexicalFontComparator implements Comparator {
		@Override
		public int compare(Font o1, Font o2) {
			return o1.getFontName().compareTo(o2.getFontName());
		}
	}

}