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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 | |||||||||||||||
SimpleTableColumnComponent.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.table.components.inserted;
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import org.apache.tapestry.BaseComponent;
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import org.apache.tapestry.IAsset;
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import org.apache.tapestry.IRequestCycle;
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import org.apache.tapestry.contrib.table.components.TableColumns;
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import org.apache.tapestry.contrib.table.model.ITableColumn;
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import org.apache.tapestry.contrib.table.model.ITableModel;
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import org.apache.tapestry.contrib.table.model.ITableModelSource;
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import org.apache.tapestry.contrib.table.model.ITableRendererListener;
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import org.apache.tapestry.contrib.table.model.ITableSortingState;
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import org.apache.tapestry.contrib.table.model.simple.SimpleTableColumn;
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import org.apache.tapestry.event.PageDetachListener;
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import org.apache.tapestry.event.PageEvent;
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import org.apache.tapestry.util.ComponentAddress;
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/**
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* A component that renders the default column header.
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*
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* If the current column is sortable, it renders the header as a link.
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* Clicking on the link causes the table to be sorted on that column.
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* Clicking on the link again causes the sorting order to be reversed.
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*
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* @author mindbridge
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*/
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public abstract class SimpleTableColumnComponent |
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extends BaseComponent
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implements ITableRendererListener, PageDetachListener
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{ |
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// transient
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private ITableColumn m_objColumn;
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private ITableModelSource m_objModelSource;
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public SimpleTableColumnComponent()
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{ |
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init(); |
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} |
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/**
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* @see org.apache.tapestry.event.PageDetachListener#pageDetached(PageEvent)
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*/
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public void pageDetached(PageEvent arg0) |
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{ |
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init(); |
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} |
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private void init() |
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{ |
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m_objColumn = null;
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m_objModelSource = null;
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} |
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/**
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* @see org.apache.tapestry.contrib.table.model.ITableRendererListener#initializeRenderer(IRequestCycle, ITableModelSource, ITableColumn, Object)
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*/
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public void initializeRenderer( |
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IRequestCycle objCycle, |
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ITableModelSource objSource, |
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ITableColumn objColumn, |
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Object objRow) |
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{ |
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m_objModelSource = objSource; |
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m_objColumn = objColumn; |
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} |
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public ITableModel getTableModel()
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{ |
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return m_objModelSource.getTableModel();
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} |
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public boolean getColumnSorted() |
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{ |
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return m_objColumn.getSortable();
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} |
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public String getDisplayName()
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{ |
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if (m_objColumn instanceof SimpleTableColumn) { |
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SimpleTableColumn objSimpleColumn = (SimpleTableColumn) m_objColumn; |
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return objSimpleColumn.getDisplayName();
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} |
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return m_objColumn.getColumnName();
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} |
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public boolean getIsSorted() |
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{ |
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ITableSortingState objSortingState = getTableModel().getSortingState(); |
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String strSortColumn = objSortingState.getSortColumn(); |
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return m_objColumn.getColumnName().equals(strSortColumn);
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} |
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public IAsset getSortImage()
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{ |
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IAsset objImageAsset; |
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IRequestCycle objCycle = getPage().getRequestCycle(); |
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ITableSortingState objSortingState = getTableModel().getSortingState(); |
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if (objSortingState.getSortOrder()
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== ITableSortingState.SORT_ASCENDING) |
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{ |
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objImageAsset = |
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(IAsset) objCycle.getAttribute( |
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TableColumns.TABLE_COLUMN_ARROW_UP_ATTRIBUTE); |
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if (objImageAsset == null) |
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objImageAsset = getAsset("sortUp");
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} |
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else
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{ |
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objImageAsset = |
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(IAsset) objCycle.getAttribute( |
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TableColumns.TABLE_COLUMN_ARROW_DOWN_ATTRIBUTE); |
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if (objImageAsset == null) |
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objImageAsset = getAsset("sortDown");
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} |
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return objImageAsset;
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} |
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public Object[] getColumnSelectedParameters()
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{ |
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return new Object[] { |
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new ComponentAddress(m_objModelSource),
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m_objColumn.getColumnName()}; |
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} |
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public void columnSelected(IRequestCycle objCycle) |
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{ |
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Object[] arrArgs = objCycle.getListenerParameters(); |
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ComponentAddress objAddr = (ComponentAddress) arrArgs[0]; |
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String strColumnName = (String) arrArgs[1]; |
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ITableModelSource objSource = |
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(ITableModelSource) objAddr.findComponent(objCycle); |
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ITableModel objModel = objSource.getTableModel(); |
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ITableSortingState objState = objModel.getSortingState(); |
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if (strColumnName.equals(objState.getSortColumn()))
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objState.setSortColumn(strColumnName, !objState.getSortOrder()); |
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else
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objState.setSortColumn( |
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strColumnName, |
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ITableSortingState.SORT_ASCENDING); |
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// ensure that the change is saved
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objSource.fireObservedStateChange(); |
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} |
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} |
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