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

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Here is the source code for hydrograph.ui.expression.editor.composites.CategoriesUpperComposite.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.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
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.dialogs.AddCategoreisDialog;
import hydrograph.ui.expression.editor.repo.ClassRepo;
import hydrograph.ui.expression.editor.util.ExpressionEditorUtil;

public class CategoriesUpperComposite extends Composite {
    private static final String ADD_CATEGORIES = "Add";
    private CategoriesComposite categoriesComposite;
    private Button btnAddPackages;
    private Text searchTextBox;
    private List classNameList;
    private Text functionSearchTextBox;

    /**
     * Create the composite.
     * @param parent
     * @param classNamelist 
     * @param style
     */
    public CategoriesUpperComposite(Composite parent, int style) {
        super(parent, style);
        setLayout(new GridLayout(3, false));
        Label lblCategories = new Label(this, SWT.NONE);
        lblCategories.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, true, false, 1, 1));
        lblCategories.setText("Categories");
        categoriesComposite = (CategoriesComposite) parent;
        btnAddPackages = new Button(this, SWT.NONE);
        btnAddPackages.setText(ADD_CATEGORIES);
        btnAddPackages.setVisible(false);
        createSearchTextBox(this);

        addListnersToAddPackageButton(parent);
    }

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

    private void addListnersToSearchTextBox() {
        searchTextBox.addModifyListener(new ModifyListener() {

            @Override
            public void modifyText(ModifyEvent e) {
                if (!StringUtils.equals(Constants.DEFAULT_SEARCH_TEXT, searchTextBox.getText())) {
                    classNameList.removeAll();
                    for (ClassDetails classDetails : ClassRepo.INSTANCE.getClassList()) {
                        if (StringUtils.containsIgnoreCase(classDetails.getcName(), searchTextBox.getText())) {
                            classNameList.add(classDetails.getDisplayName());
                            classNameList.setData(String.valueOf(classNameList.getItemCount() - 1), classDetails);
                        }
                    }
                    if (classNameList.getItemCount() == 0 && StringUtils.isNotBlank(searchTextBox.getText())) {
                        classNameList.add(Messages.CANNOT_SEARCH_INPUT_STRING + searchTextBox.getText());
                    }
                    categoriesComposite.clearDescriptionAndMethodList();
                }
                functionSearchTextBox.setEnabled(false);
            }
        });

    }

    private void addListnersToAddPackageButton(final Composite parent) {
        btnAddPackages.addSelectionListener(new SelectionListener() {

            @Override
            public void widgetSelected(SelectionEvent e) {
                AddCategoreisDialog addCategoreisDialog = new AddCategoreisDialog(
                        Display.getCurrent().getActiveShell());
                int returnCode = addCategoreisDialog.open();
                if (returnCode == 0) {
                    ((CategoriesComposite) parent).refreshList();
                    refresh();
                }
            }

            @Override
            public void widgetDefaultSelected(SelectionEvent e) {

            }
        });
    }

    protected void refresh() {
        searchTextBox.setText(Constants.DEFAULT_SEARCH_TEXT);
    }

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

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

    /**
     * Links function-search textbox to Categories upper composite. 
     * @param functionSearchTextBox
     */
    public void setFunctionSearchBox(Text functionSearchTextBox) {
        this.functionSearchTextBox = functionSearchTextBox;
    }

    /**
     * Returns categories search textbox
     * 
     * @return
     */
    public Text getSearchTextBox() {
        return searchTextBox;
    }
}