com.ultimatetech.cim.dialogs.FindClass.java Source code

Introduction

Here is the source code for com.ultimatetech.cim.dialogs.FindClass.java

Source

/*******************************************************************************
 * Copyright (c) 2006 Ultimate Technology, Inc.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Bojan Vukojevic - initial API and implementation
 *******************************************************************************/
package com.ultimatetech.cim.dialogs;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.Text;

import com.ultimatetech.cim.CIMPlugin;
import com.ultimatetech.cim.views.TreeObject;

public class FindClass extends Dialog {
    private Text findClassName = null;
    private TableViewer viewer = null;
    Object[] elements = null;
    int selectedItemInd = 0;

    public FindClass(Shell parentShell, Object[] elems) {
        super(parentShell);
        elements = elems;
    }

    protected Control createDialogArea(Composite parent) {
        Composite composite = (Composite) super.createDialogArea(parent);
        createSearchFieldAndList(composite);
        return composite;
    }

    protected void createSearchFieldAndList(Composite parent) {
        Composite composite = new Composite(parent, SWT.NONE);

        GridLayout layout = new GridLayout();
        layout.numColumns = 1;
        layout.makeColumnsEqualWidth = false;
        layout.marginWidth = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN);
        layout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);
        layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING);
        layout.verticalSpacing = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING);
        composite.setLayout(layout);
        GridData data = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING | GridData.VERTICAL_ALIGN_CENTER);
        data.minimumWidth = 600;
        data.heightHint = 400;
        composite.setLayoutData(data);
        composite.setFont(parent.getFont());

        Label title = new Label(composite, SWT.NONE);
        title.setText("Type the name of the class you are searching for. OK will select it in the tree.");

        //GridData gd = new GridData();
        //gd.horizontalAlignment = SWT.LEFT;      
        //title.setLayoutData(gd);

        GridData gridData = new GridData();
        gridData.grabExcessHorizontalSpace = true;
        gridData.minimumWidth = 400;
        findClassName = new Text(composite, SWT.SINGLE | SWT.BORDER);
        findClassName.setLayoutData(gridData);
        findClassName.addKeyListener(new SearchKeyListener());

        Composite tableComp = new Composite(composite, SWT.NONE);
        GridData tcgd = new GridData();
        tcgd.grabExcessHorizontalSpace = true;
        tcgd.minimumWidth = 400;
        tableComp.setLayoutData(tcgd);

        //add table with all classes
        viewer = new TableViewer(tableComp, SWT.BORDER | SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL);
        viewer.setContentProvider(new ViewContentProvider());
        viewer.setLabelProvider(new ViewLabelProvider());
        viewer.setInput(elements);
        viewer.getTable().setSize(400, 300);
        addTableColumns(viewer.getTable());
        viewer.getTable().setHeaderVisible(false);
        viewer.addSelectionChangedListener(new SelectionListener());
        //viewer.setSorter(new ViewerSorter());

    }

    private void addTableColumns(Table classesTable) {
        TableColumn column = new TableColumn(classesTable, SWT.LEFT, 0);
        column.setText("Class Name");
        column.setWidth(200);
        classesTable.setLinesVisible(false);

    }

    class SelectionListener implements ISelectionChangedListener {

        public void selectionChanged(SelectionChangedEvent event) {
            selectedItemInd = viewer.getTable().getSelectionIndex();

        }

    }

    class SearchKeyListener implements KeyListener {

        public void keyPressed(KeyEvent e) {
        }

        public void keyReleased(KeyEvent e) {
            //         get the value of the field and find the match
            String sfc = findClassName.getText();
            for (int i = 0; i < elements.length; i++) {
                TreeObject to = (TreeObject) elements[i];
                if (to.getName().startsWith(sfc)) {
                    //select it in the table
                    viewer.getTable().setSelection(i);
                    selectedItemInd = i;
                    break;
                }
            }

        }

    }

    public int getSelectedItemIndex() {
        return selectedItemInd;
    }

    class ViewContentProvider implements IStructuredContentProvider {
        public void inputChanged(Viewer v, Object oldInput, Object newInput) {
        }

        public void dispose() {
        }

        public Object[] getElements(Object parent) {
            return elements;

        }
    }

    class ViewLabelProvider extends LabelProvider implements ITableLabelProvider {
        public String getColumnText(Object obj, int index) {
            String result = "";
            if (obj instanceof TreeObject) {
                TreeObject to = (TreeObject) obj;

                switch (index) {
                case 0:
                    result = to.getName();
                    break;
                default:
                    break;
                }
            }
            return result;
        }

        public Image getColumnImage(Object obj, int index) {
            if (index == 0) {
                return CIMPlugin.getDefault().getImage("icons/class_obj.gif");
            }
            return null;
        }

    }

}