/*******************************************************************************
* Copyright (c) 2007 Oracle Corporation., and others
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Yury Kats/Oracle - initial API and implementation
*
********************************************************************************/
package org.eclipse.jst.jsf.taglibprocessing.attributevalues;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jst.jsf.metadataprocessors.features.IPossibleValues;
import org.eclipse.jst.jsf.metadataprocessors.features.PossibleValue;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.PaletteData;
import org.eclipse.swt.graphics.RGB;
/**
* Meta-data processing type representing a color.
* A color is defined as in html spec http://www.w3.org/TR/html4/types.html#type-color
*
* <p><b>Provisional API - subject to change</b></p>
*
* @author ykats
*/
public class ColorType extends EnumerationType implements IPossibleValues {
/**
* List of standard colors
* See http://www.w3.org/TR/html4/types.html#type-color
*/
private final static String[] COLORS = {"Black", "Silver", "Gray", "White", "Maroon", "Red", "Purple", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$
"Fuchsia", "Green", "Lime", "Olive", "Yellow", "Navy", "Blue", "Teal","Aqua"}; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$ //$NON-NLS-9$
//if ordering changes, must change RGB[] ordering
private RGB[] _rgb;
/* (non-Javadoc)
* @see org.eclipse.jst.jsf.taglibprocessing.attributevalues.EnumerationType#getReturnType()
*/
protected String getReturnType(){ return "java.lang.String";} //$NON-NLS-1$
/* (non-Javadoc)
* @see org.eclipse.jst.jsf.metadataprocessors.features.IValidValues#isValidValue(java.lang.String)
*/
public boolean isValidValue(String value) {
boolean bValid = true;
String trimmedVal = value.trim();
if (trimmedVal.length() == 0)
bValid = false;
else if (trimmedVal.charAt(0) == '#' && trimmedVal.length() == 7) {
for (int i=1; i<7; i++) {
if (trimmedVal.charAt(i) < '0' ||
(trimmedVal.charAt(i) > '9' && trimmedVal.charAt(i) < 'A') ||
(trimmedVal.charAt(i) > 'F' && trimmedVal.charAt(i) < 'a') ||
trimmedVal.charAt(i) > 'f') {
bValid = false;
break;
}
}
}
else {
bValid = false;
for (int i = 0; i < COLORS.length; i++) {
if(trimmedVal.equalsIgnoreCase(COLORS[i])) {
bValid = true;
break;
}
}
}
if(!bValid) {
addNewValidationMessage(Messages.ColorType_invalid_color);
}
return getValidationMessages().isEmpty();
}
/* (non-Javadoc)
* @see org.eclipse.jst.jsf.metadataprocessors.features.IPossibleValues#getPossibleValues()
*/
public List getPossibleValues() {
List ret = new ArrayList(COLORS.length);
for (int i=0;i < COLORS.length;i++){
PossibleValue pv = new PossibleValue(COLORS[i]);
pv.setIcon(createImage(i));
ret.add(pv);
}
return ret;
}
private ImageDescriptor createImage(int color) {
PaletteData pd = getPaletteData(color);
return ImageDescriptor.createFromImageData(new ImageData(16, 16, 1, pd));
}
private PaletteData getPaletteData(int color){
if (_rgb == null){
_rgb = new RGB[16];
_rgb[0] = new RGB(0,0,0);//black
_rgb[1] = new RGB(192,192,192);//silver
_rgb[2] = new RGB(128,128,128);//gray
_rgb[3] = new RGB(255,255,255);//white
_rgb[4] = new RGB(128,0,0);//Maroon
_rgb[5] = new RGB(255,0,0);//Red
_rgb[6] = new RGB(128,0,128);//Purple
_rgb[7] = new RGB(255,0,255);//Fuchsia
_rgb[8] = new RGB(0,128,0);//Green
_rgb[9] = new RGB(0,255,0);//Lime
_rgb[10] = new RGB(128,128,0);//Olive
_rgb[11] = new RGB(255,255,0);//Yellow
_rgb[12] = new RGB(0,0,128);//Navy
_rgb[13] = new RGB(0,0,255);//Blue
_rgb[14] = new RGB(0,128,128);//Teal
_rgb[15] = new RGB(0,255,255);//Aqua
}
RGB[] rgbColor = new RGB[1];
System.arraycopy(_rgb, color, rgbColor, 0, 1);
return new PaletteData(rgbColor);
}
}