Java/Swing Components/Color Chooser
A panel from where you can choose a color based on it"s HTML name
<source lang="java">
//Revised from com.greef.ui; import java.awt.BorderLayout; import java.awt.Color; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import java.lang.reflect.Field; import java.util.Collection; import java.util.HashMap; import java.util.Map; import javax.swing.Icon; import javax.swing.JColorChooser; import javax.swing.JComboBox; import javax.swing.JLabel; import javax.swing.UIManager; import javax.swing.colorchooser.AbstractColorChooserPanel; /**
* This is a panel from where you can choose a color based on it"s HTML name. * This panel was designed to be integrated in JColorChooser component.*
* JColorChooser colorChooser = new JColorChooser();
* colorChooser.addChooserPanel(new HTMLColorsChooserPanel());
* * @author Adrian Ber * @see HTMLColors */
public class HTMLColorsChooserPanel extends AbstractColorChooserPanel {
/** The name of this color chooser panel; will appear as the tab name
* in the color chooser
*/
private String displayName;
/** The name displayed for a color without a HTML name */
private String nonHTMLColorDisplayName;
/** the color chooser in which is included this panel. */
private JColorChooser parent = null;
/** The combo box filled with the HTML color names */
private JComboBox colorsComboBox = new JComboBox();
/** The label in front of the HTML color combo box. */
private JLabel colorLabel;
public HTMLColorsChooserPanel() {
this("HTML Names", "<Custom>");
}
public HTMLColorsChooserPanel(String displayName) {
this(displayName, "<Custom>");
}
public HTMLColorsChooserPanel(String displayName, String nonHTMlColorDisplayName) {
this.displayName = displayName;
this.nonHTMLColorDisplayName = nonHTMlColorDisplayName;
buildChooser();
}
public Icon getSmallDisplayIcon() {
return null;
}
public void updateChooser() {
if (parent != null) {
String x = HTMLColors.getName(getColorFromModel());
if (x == null) x = nonHTMLColorDisplayName;
colorsComboBox.setSelectedItem(x);
}
}
public String getDisplayName() {
return displayName;
}
public Icon getLargeDisplayIcon() {
return null;
}
/** Initializes this color chooser components. */
protected void buildChooser() {
setLayout(new BorderLayout());
colorsComboBox.addItem(nonHTMLColorDisplayName);
for (String color : HTMLColors.colors()) {
colorsComboBox.addItem(color);
}
colorsComboBox.addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent ev) {
if (parent == null) return;
Object name = colorsComboBox.getSelectedItem();
if ((name != null) && (!name.toString().equals(nonHTMLColorDisplayName))) {
parent.setColor(HTMLColors.getColor(name.toString()));
}
}
});
colorLabel = new JLabel(getColorLabelText());
add(colorLabel, BorderLayout.WEST);
add(colorsComboBox, BorderLayout.CENTER);
}
private String getColorLabelText() {
String x = UIManager.getString("HTMLColorsChooserPanel.colorLabel");
if (x == null) {
x = "HTML Color:";
}
return x;
}
public void installChooserPanel(JColorChooser enclosingChooser) {
parent = enclosingChooser;
super.installChooserPanel(enclosingChooser);
}
public void updateUI() {
super.updateUI();
if (colorLabel != null)
colorLabel.setText(getColorLabelText());
}
} class HTMLColors {
/** Don"t instantiate this, use only the static methods */
private HTMLColors() {
}
/** map between color names and colors;
* tough there are fields for every color we use a map because is a faster
* way to get the color
*/
private static Map<String, Color> name2color = new HashMap<String, Color>();
/** map between colors and color names;
* tough there are fields for every color we use a map because is a faster
* way to get the color
*/
private static Map<Color, String> color2name = new HashMap<Color, String>();
/** Initialiase colors map */
private static void initColorsMap() {
Field[] fields = HTMLColors.class.getFields();
for (Field field : fields) {
if (field.getType().isAssignableFrom(Color.class)) {
addColor(field.getName());
}
}
}
/** Used to initialize the map */
private static void addColor(String colorName, Color color) {
name2color.put(colorName, color);
color2name.put(color, colorName);
}
/** Used to initialize the map */
private static void addColor(String colorName) {
addColor(colorName, getColorFromField(colorName));
}
/** Used to initialize the map */
private static void addColor(String colorName, int colorRGB) {
addColor(colorName, new Color(colorRGB));
}
/** Returns a color with the specified case-insensitive name. */
private static Color getColorFromField(String name) {
try {
Field colorField = HTMLColors.class.getField(name.toLowerCase());
return (Color) colorField.get(HTMLColors.class);
}
catch (NoSuchFieldException exc) {
}
catch (SecurityException exc) {
}
catch (IllegalAccessException exc) {
}
catch (IllegalArgumentException exc) {
}
return null;
}
/** Returns a color with the specified case-insensitive name.*/
public static String getName(Color color) {
return color2name.get(color);
}
/** Returns a color with the specified case-insensitive name.*/
public static Color getColor(String name) {
return name2color.get(name.toLowerCase());
}
/** Returns a collection of all color names */
public static Collection<String> colors() {
return name2color.keySet();
}
/** Transform a color string into a color object.
* @param s the color string
* @return the color object
*/
public static Color decodeColor(String s) {
if (s == null)
return null;
Color c;
try {
c = Color.decode(s);
}
catch (NumberFormatException exc) {
c = HTMLColors.getColor(s);
}
return c;
}
public static final Color aliceblue = new Color(0xf0f8ff);
public static final Color antiquewhite = new Color(0xfaebd7);
public static final Color aqua = new Color(0x00ffff);
public static final Color aquamarine = new Color(0x7fffd4);
public static final Color azure = new Color(0xf0ffff);
public static final Color beige = new Color(0xf5f5dc);
public static final Color bisque = new Color(0xffe4c4);
public static final Color black = new Color(0x000000);
public static final Color blanchedalmond = new Color(0xffebcd);
public static final Color blue = new Color(0x0000ff);
public static final Color blueviolet = new Color(0x8a2be2);
public static final Color brown = new Color(0xa52a2a);
public static final Color burlywood = new Color(0xdeb887);
public static final Color cadetblue = new Color(0x5f9ea0);
public static final Color chartreuse = new Color(0x7fff00);
public static final Color chocolate = new Color(0xd2691e);
public static final Color coral = new Color(0xff7f50);
public static final Color cornflowerblue = new Color(0x6495ed);
public static final Color cornsilk = new Color(0xfff8dc);
public static final Color crimson = new Color(0xdc143c);
public static final Color cyan = new Color(0x00ffff);
public static final Color darkblue = new Color(0x00008b);
public static final Color darkcyan = new Color(0x008b8b);
public static final Color darkgoldenrod = new Color(0xb8860b);
public static final Color darkgray = new Color(0xa9a9a9);
public static final Color darkgreen = new Color(0x006400);
public static final Color darkkhaki = new Color(0xbdb76b);
public static final Color darkmagenta = new Color(0x8b008b);
public static final Color darkolivegreen = new Color(0x556b2f);
public static final Color darkorange = new Color(0xff8c00);
public static final Color darkorchid = new Color(0x9932cc);
public static final Color darkred = new Color(0x8b0000);
public static final Color darksalmon = new Color(0xe9967a);
public static final Color darkseagreen = new Color(0x8fbc8f);
public static final Color darkslateblue = new Color(0x483d8b);
public static final Color darkslategray = new Color(0x2f4f4f);
public static final Color darkturquoise = new Color(0x00ced1);
public static final Color darkviolet = new Color(0x9400d3);
public static final Color deeppink = new Color(0xff1493);
public static final Color deepskyblue = new Color(0x00bfff);
public static final Color dimgray = new Color(0x696969);
public static final Color dodgerblue = new Color(0x1e90ff);
public static final Color firebrick = new Color(0xb22222);
public static final Color floralwhite = new Color(0xfffaf0);
public static final Color forestgreen = new Color(0x228b22);
public static final Color fuchsia = new Color(0xff00ff);
public static final Color gainsboro = new Color(0xdcdcdc);
public static final Color ghostwhite = new Color(0xf8f8ff);
public static final Color gold = new Color(0xffd700);
public static final Color goldenrod = new Color(0xdaa520);
public static final Color gray = new Color(0x808080);
public static final Color green = new Color(0x008000);
public static final Color greenyellow = new Color(0xadff2f);
public static final Color honeydew = new Color(0xf0fff0);
public static final Color hotpink = new Color(0xff69b4);
public static final Color indianred = new Color(0xcd5c5c);
public static final Color indigo = new Color(0x4b0082);
public static final Color ivory = new Color(0xfffff0);
public static final Color khaki = new Color(0xf0e68c);
public static final Color lavender = new Color(0xe6e6fa);
public static final Color lavenderblush = new Color(0xfff0f5);
public static final Color lawngreen = new Color(0x7cfc00);
public static final Color lemonchiffon = new Color(0xfffacd);
public static final Color lightblue = new Color(0xadd8e6);
public static final Color lightcoral = new Color(0xf08080);
public static final Color lightcyan = new Color(0xe0ffff);
public static final Color lightgoldenrodyellow = new Color(0xfafad2);
public static final Color lightgreen = new Color(0x90ee90);
public static final Color lightgrey = new Color(0xd3d3d3);
public static final Color lightpink = new Color(0xffb6c1);
public static final Color lightsalmon = new Color(0xffa07a);
public static final Color lightseagreen = new Color(0x20b2aa);
public static final Color lightskyblue = new Color(0x87cefa);
public static final Color lightslategray = new Color(0x778899);
public static final Color lightsteelblue = new Color(0xb0c4de);
public static final Color lightyellow = new Color(0xffffe0);
public static final Color lime = new Color(0x00ff00);
public static final Color limegreen = new Color(0x32cd32);
public static final Color linen = new Color(0xfaf0e6);
public static final Color magenta = new Color(0xff00ff);
public static final Color maroon = new Color(0x800000);
public static final Color mediumaquamarine = new Color(0x66cdaa);
public static final Color mediumblue = new Color(0x0000cd);
public static final Color mediumorchid = new Color(0xba55d3);
public static final Color mediumpurple = new Color(0x9370db);
public static final Color mediumseagreen = new Color(0x3cb371);
public static final Color mediumslateblue = new Color(0x7b68ee);
public static final Color mediumspringgreen = new Color(0x00fa9a);
public static final Color mediumturquoise = new Color(0x48d1cc);
public static final Color mediumvioletred = new Color(0xc71585);
public static final Color midnightblue = new Color(0x191970);
public static final Color mintcream = new Color(0xf5fffa);
public static final Color mistyrose = new Color(0xffe4e1);
public static final Color moccasin = new Color(0xffe4b5);
public static final Color navajowhite = new Color(0xffdead);
public static final Color navy = new Color(0x000080);
public static final Color oldlace = new Color(0xfdf5e6);
public static final Color olive = new Color(0x808000);
public static final Color olivedrab = new Color(0x6b8e23);
public static final Color orange = new Color(0xffa500);
public static final Color orangered = new Color(0xff4500);
public static final Color orchid = new Color(0xda70d6);
public static final Color palegoldenrod = new Color(0xeee8aa);
public static final Color palegreen = new Color(0x98fb98);
public static final Color paleturquoise = new Color(0xafeeee);
public static final Color palevioletred = new Color(0xdb7093);
public static final Color papayawhip = new Color(0xffefd5);
public static final Color peachpuff = new Color(0xffdab9);
public static final Color peru = new Color(0xcd853f);
public static final Color pink = new Color(0xffc0cb);
public static final Color plum = new Color(0xdda0dd);
public static final Color powderblue = new Color(0xb0e0e6);
public static final Color purple = new Color(0x800080);
public static final Color red = new Color(0xff0000);
public static final Color rosybrown = new Color(0xbc8f8f);
public static final Color royalblue = new Color(0x4169e1);
public static final Color saddlebrown = new Color(0x8b4513);
public static final Color salmon = new Color(0xfa8072);
public static final Color sandybrown = new Color(0xf4a460);
public static final Color seagreen = new Color(0x2e8b57);
public static final Color seashell = new Color(0xfff5ee);
public static final Color sienna = new Color(0xa0522d);
public static final Color silver = new Color(0xc0c0c0);
public static final Color skyblue = new Color(0x87ceeb);
public static final Color slateblue = new Color(0x6a5acd);
public static final Color slategray = new Color(0x708090);
public static final Color snow = new Color(0xfffafa);
public static final Color springgreen = new Color(0x00ff7f);
public static final Color steelblue = new Color(0x4682b4);
public static final Color tan = new Color(0xd2b48c);
public static final Color teal = new Color(0x008080);
public static final Color thistle = new Color(0xd8bfd8);
public static final Color tomato = new Color(0xff6347);
public static final Color turquoise = new Color(0x40e0d0);
public static final Color violet = new Color(0xee82ee);
public static final Color wheat = new Color(0xf5deb3);
public static final Color white = new Color(0xffffff);
public static final Color whitesmoke = new Color(0xf5f5f5);
public static final Color yellow = new Color(0xffff00);
public static final Color yellowgreen = new Color(0x9acd32);
static {
initColorsMap();
}
}
</source>
