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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
PaletteColumn.java | 0% | 0% | 0% | 0% |
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// Copyright 2004, 2005 The Apache Software Foundation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package org.apache.tapestry.contrib.palette;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.List;
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import org.apache.tapestry.IMarkupWriter;
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import org.apache.tapestry.IRender;
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import org.apache.tapestry.IRequestCycle;
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/**
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* One of the two columns in a Palette component: the left column lists
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* available options, the right column lists the selected columns.
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*
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* @author Howard Lewis Ship
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*/
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public class PaletteColumn implements IRender |
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{ |
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private String _name;
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private int _rows; |
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private List _options = new ArrayList(); |
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private static class ValueComparator implements Comparator |
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{ |
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public int compare(Object o1, Object o2) |
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{ |
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PaletteOption option1 = (PaletteOption) o1; |
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PaletteOption option2 = (PaletteOption) o2; |
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return option1.getValue().compareTo(option2.getValue());
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} |
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} |
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private static class LabelComparator implements Comparator |
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{ |
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public int compare(Object o1, Object o2) |
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{ |
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PaletteOption option1 = (PaletteOption) o1; |
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PaletteOption option2 = (PaletteOption) o2; |
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return option1.getLabel().compareTo(option2.getLabel());
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} |
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} |
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/**
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* @param name the name of the column (the name attribute of the <select>)
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* @param rows the number of visible rows (the size attribute of the <select>)
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*/
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public PaletteColumn(String name, int rows) |
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{ |
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_name = name; |
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_rows = rows; |
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} |
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public void addOption(PaletteOption option) |
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{ |
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_options.add(option); |
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} |
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/**
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* Sorts the options by value (the hidden value for the option
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* that represents the object value). This should be invoked
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* before rendering this PaletteColumn.
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*/
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public void sortByValue() |
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{ |
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Collections.sort(_options, new ValueComparator());
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} |
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/**
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* Sorts the options by the label visible to the user. This should be invoked
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* before rendering this PaletteColumn.
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*/
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public void sortByLabel() |
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{ |
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Collections.sort(_options, new LabelComparator());
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} |
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/**
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* Renders the <select> and <option> tags for
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* this column.
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*/
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public void render(IMarkupWriter writer, IRequestCycle cycle) |
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{ |
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writer.begin("select");
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writer.attribute("multiple", "multiple"); |
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writer.attribute("name", _name);
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writer.attribute("size", _rows);
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writer.println(); |
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int count = _options.size();
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for (int i = 0; i < count; i++) |
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{ |
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PaletteOption o = (PaletteOption) _options.get(i); |
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o.render(writer, cycle); |
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} |
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writer.end(); |
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} |
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} |
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