org.zkoss.zkex.zul.Fisheye Maven / Gradle / Ivy
/* Fisheye.java
{{IS_NOTE
Purpose:
Description:
History:
Jul 8, 2008 11:59:54 AM , Created by jumperchen
}}IS_NOTE
Copyright (C) 2008 Potix Corporation. All Rights Reserved.
{{IS_RIGHT
This program is distributed under GPL Version 2.0 in the hope that
it will be useful, but WITHOUT ANY WARRANTY.
}}IS_RIGHT
*/
package org.zkoss.zkex.zul;
import org.zkoss.lang.Objects;
import org.zkoss.lang.Strings;
import org.zkoss.xml.HTMLs;
import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.UiException;
import org.zkoss.zul.impl.XulElement;
/**
* A fisheye item.
*
* Default {@link #getZclass}: z-fisheye.
*
* @author jumperchen
* @since 3.5.0
*/
public class Fisheye extends XulElement {
private String _image, _label = "";
public Fisheye() {
}
public Fisheye(String label, String image) {
this();
setLabel(label);
setImage(image);
}
/** Returns the label (never null).
*
Default: "".
*/
public String getLabel() {
return _label;
}
/** Sets the label.
*/
public void setLabel(String label) {
if (label == null) label = "";
if (!Objects.equals(_label, label)) {
_label = label;
invalidate();
}
}
/** Returns the image URI.
*
Default: null.
*/
public String getImage() {
return _image;
}
/** Sets the image URI.
*/
public void setImage(String image) {
if (image != null && image.length() == 0) image = null;
if (!Objects.equals(_image, image)) {
_image = image;
invalidate();
}
}
protected String getRealStyle() {
String style = super.getRealStyle();
Fisheyebar bar = (Fisheyebar) getParent();
if (bar == null) return style;
final StringBuffer sb = new StringBuffer(32).append(style);
HTMLs.appendStyle(sb, "width", bar.getItemWidth() + "px");
HTMLs.appendStyle(sb, "height", bar.getItemWidth() + "px");
return sb.toString();
}
//-- super --//
public String getZclass() {
return _zclass == null ? "z-fisheye" : super.getZclass();
}
protected int getRealStyleFlags() {
return super.getRealStyleFlags() | RS_NO_WIDTH|RS_NO_HEIGHT;
}
/**
* This method is unsupported. Please use {@link Fisheyebar#setItemWidth(int)} instead.
*/
public void setWidth(String width) {
throw new UnsupportedOperationException("readonly");
}
/**
* This method is unsupported. Please use {@link Fisheyebar#setItemHeight(int)} instead.
*/
public void setHeight(String height) {
throw new UnsupportedOperationException("readonly");
}
public String getOuterAttrs() {
String outer = super.getOuterAttrs();
if (!Strings.isBlank(_label))
outer += " z.label=\"true\"";
return outer;
}
public void setParent(Component parent) {
if (parent != null && !(parent instanceof Fisheyebar))
throw new UiException("Unsupported parent for fisheye: "+parent);
super.setParent(parent);
}
/** Not childable. */
public boolean isChildable() {
return false;
}
}