com.laex.cg2d.entityeditor.ui.AnimationPropertyChangeDialog.java Source code

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Here is the source code for com.laex.cg2d.entityeditor.ui.AnimationPropertyChangeDialog.java

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/*
 * Copyright (c) 2012, 2013 Hemanta Sapkota.
 * 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:
 * Hemanta Sapkota (laex.pearl@gmail.com)
 */
package com.laex.cg2d.entityeditor.ui;

import org.apache.commons.lang.StringUtils;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.graphics.Point;
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.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

/**
 * The Class AnimationPropertyChangeDialog.
 */
public class AnimationPropertyChangeDialog extends TitleAreaDialog {

    /** The txt name. */
    private Text txtName;

    /** The name. */
    private String name;

    /** The ok button. */
    private Button okButton;

    /** The existing name. */
    private String existingName;

    /** The anim duration. */
    private String animDuration;

    /** The lbl animation name. */
    private Label lblAnimationName;

    /** The lbl animation duration. */
    private Label lblAnimationDuration;

    /** The txt animation duration. */
    private Text txtAnimationDuration;

    /**
     * The Class Validator.
     */
    class Validator implements ModifyListener {

        /*
         * (non-Javadoc)
         * 
         * @see
         * org.eclipse.swt.events.ModifyListener#modifyText(org.eclipse.swt.events
         * .ModifyEvent)
         */
        @Override
        public void modifyText(ModifyEvent e) {
            if (StringUtils.isEmpty(txtName.getText()) || StringUtils.isEmpty(txtAnimationDuration.getText())) {
                setErrorMessage("Value hould not be empty");
                okButton.setEnabled(false);
                return;
            }

            try {
                Float.parseFloat(txtAnimationDuration.getText());
            } catch (NumberFormatException nex) {
                setErrorMessage("Value must be a valid floating point number");
                okButton.setEnabled(false);
                return;
            }

            setErrorMessage(null);
            okButton.setEnabled(true);
        }
    }

    /** The validator. */
    private final Validator validator = new Validator();

    /**
     * Create the dialog.
     * 
     * @param parentShell
     *          the parent shell
     * @param existingName
     *          the existing name
     * @param animDuration
     *          the anim duration
     */
    public AnimationPropertyChangeDialog(Shell parentShell, String existingName, String animDuration) {
        super(parentShell);
        this.existingName = existingName;
        this.animDuration = animDuration;
    }

    /**
     * Create contents of the dialog.
     * 
     * @param parent
     *          the parent
     * @return the control
     */
    @Override
    protected Control createDialogArea(Composite parent) {
        setTitle("Set new values");
        Composite area = (Composite) super.createDialogArea(parent);
        Composite container = new Composite(area, SWT.NONE);
        container.setLayout(new GridLayout(2, false));
        GridData gd_container = new GridData(GridData.FILL_BOTH);
        gd_container.grabExcessVerticalSpace = false;
        gd_container.heightHint = 55;
        container.setLayoutData(gd_container);

        lblAnimationName = new Label(container, SWT.NONE);
        lblAnimationName.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
        lblAnimationName.setText("Animation Name");

        txtName = new Text(container, SWT.BORDER);
        txtName.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
        txtName.setText(existingName);
        txtName.addModifyListener(validator);

        lblAnimationDuration = new Label(container, SWT.NONE);
        lblAnimationDuration.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
        lblAnimationDuration.setText("Animation Duration");

        txtAnimationDuration = new Text(container, SWT.BORDER);
        txtAnimationDuration.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
        txtAnimationDuration.setText(animDuration);
        txtAnimationDuration.addModifyListener(validator);

        return area;
    }

    /**
     * Create contents of the button bar.
     * 
     * @param parent
     *          the parent
     */
    @Override
    protected void createButtonsForButtonBar(Composite parent) {
        okButton = createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true);
        createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.dialogs.Dialog#okPressed()
     */
    @Override
    protected void okPressed() {
        name = txtName.getText();
        animDuration = txtAnimationDuration.getText();
        super.okPressed();
    }

    /**
     * Gets the name.
     * 
     * @return the name
     */
    public String getName() {
        return name;
    }

    /**
     * Gets the animation duration.
     * 
     * @return the animation duration
     */
    public String getAnimationDuration() {
        return animDuration;
    }

    /**
     * Return the initial size of the dialog.
     * 
     * @return the initial size
     */
    @Override
    protected Point getInitialSize() {
        return new Point(450, 197);
    }

}