hydrograph.ui.expression.editor.composites.FunctionsUpperComposite.java Source code

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Here is the source code for hydrograph.ui.expression.editor.composites.FunctionsUpperComposite.java

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/*******************************************************************************
 * Copyright 2017 Capital One Services, LLC and Bitwise, Inc.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *******************************************************************************/

package hydrograph.ui.expression.editor.composites;

import org.apache.commons.lang.StringUtils;
import org.eclipse.swt.SWT;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.List;
import org.eclipse.swt.widgets.Text;

import hydrograph.ui.common.util.CustomColorRegistry;
import hydrograph.ui.expression.editor.Constants;
import hydrograph.ui.expression.editor.Messages;
import hydrograph.ui.expression.editor.datastructure.ClassDetails;
import hydrograph.ui.expression.editor.datastructure.MethodDetails;
import hydrograph.ui.expression.editor.util.ExpressionEditorUtil;

public class FunctionsUpperComposite extends Composite {
    private static final String TITLE = "Functions";
    private List methodList;
    private Text functionSearchTextBox;
    private Browser descriptionStyledText;
    private List classNameList;

    /**
     * Create the composite.
     * 
     * @param parent
     * @param style
     */
    public FunctionsUpperComposite(Composite parent, int style) {
        super(parent, style);
        setLayout(new GridLayout(2, false));

        Label lblFunctions = new Label(this, SWT.NONE);
        lblFunctions.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, true, 1, 1));
        lblFunctions.setText(TITLE);

        createSearchTextBox(this);
    }

    @Override
    protected void checkSubclass() {
        // Disable the check that prevents subclassing of SWT components
    }

    public void setMethodList(List methodList) {
        this.methodList = methodList;
    }

    private void createSearchTextBox(Composite headerComposite) {
        functionSearchTextBox = new Text(headerComposite, SWT.BORDER);
        GridData gd_searchTextBox = new GridData(SWT.RIGHT, SWT.CENTER, true, true, 0, 0);
        gd_searchTextBox.widthHint = 150;
        functionSearchTextBox.setLayoutData(gd_searchTextBox);
        functionSearchTextBox.setForeground(CustomColorRegistry.INSTANCE.getColorFromRegistry(128, 128, 128));
        functionSearchTextBox.setText(Constants.DEFAULT_SEARCH_TEXT);
        functionSearchTextBox.setEnabled(false);
        addListnersToSearchTextBox();
        ExpressionEditorUtil.INSTANCE.addFocusListenerToSearchTextBox(functionSearchTextBox);
    }

    private void addListnersToSearchTextBox() {
        functionSearchTextBox.addModifyListener(new ModifyListener() {
            @Override
            public void modifyText(ModifyEvent e) {
                if (!StringUtils.equals(Constants.DEFAULT_SEARCH_TEXT, functionSearchTextBox.getText())
                        && (classNameList.getSelectionCount() != 0 && !StringUtils
                                .startsWith(classNameList.getItem(0), Messages.CANNOT_SEARCH_INPUT_STRING))) {
                    methodList.removeAll();
                    ClassDetails classDetails = (ClassDetails) methodList
                            .getData(CategoriesComposite.KEY_FOR_ACCESSING_CLASS_FROM_METHOD_LIST);
                    if (classDetails != null) {
                        for (MethodDetails methodDetails : classDetails.getMethodList()) {
                            if (StringUtils.containsIgnoreCase(methodDetails.getMethodName(),
                                    functionSearchTextBox.getText())) {
                                methodList.add(methodDetails.getSignature());
                                methodList.setData(String.valueOf(methodList.getItemCount() - 1), methodDetails);
                            }
                        }
                    }
                    if (methodList.getItemCount() == 0 && StringUtils.isNotBlank(functionSearchTextBox.getText())) {
                        methodList.add(Messages.CANNOT_SEARCH_INPUT_STRING + functionSearchTextBox.getText());
                    }
                    descriptionStyledText.setText(Constants.EMPTY_STRING);
                }
            }
        });
    }

    public void refresh() {
        functionSearchTextBox.setText(Constants.DEFAULT_SEARCH_TEXT);
    }

    public Text getFunctionSearchTextBox() {
        return functionSearchTextBox;
    }

    public void setDescriptionText(Browser descriptionStyledText) {
        this.descriptionStyledText = descriptionStyledText;
    }

    public void setClassNameList(List classNamelist) {
        this.classNameList = classNamelist;
    }

}