com.generalrobotix.ui.view.graph.VRangeDialog.java Source code

Introduction

Here is the source code for com.generalrobotix.ui.view.graph.VRangeDialog.java

Source

/*
 * Copyright (c) 2008, AIST, the University of Tokyo and General Robotix Inc.
 * All rights reserved. This program is 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:
 * General Robotix Inc.
 * National Institute of Advanced Industrial Science and Technology (AIST) 
 */
package com.generalrobotix.ui.view.graph;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.layout.RowLayout;
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;

import com.generalrobotix.ui.util.MessageBundle;

/**
 * 
 *
 * @author Kernel Inc.
 * @version 1.0 (2001/8/20)
 */
public class VRangeDialog extends Dialog {

    // -----------------------------------------------------------------
    // 
    double base_; // 
    double extent_; // 
    boolean updated_; // 
    String unit_; // ??
    Text minField_; // ?
    Text maxField_; // 
    Label minUnitLabel_; // ???
    Label maxUnitLabel_; // ??
    private Shell shell_;
    private boolean minfirst_;
    private boolean maxfirst_;

    // -----------------------------------------------------------------
    // 
    /**
     * 
     *
     * @param   owner   
     */
    public VRangeDialog(Shell shell) {
        super(shell);
        shell_ = shell;
    }

    protected void configureShell(Shell newShell) {
        super.configureShell(newShell);
        newShell.setText(MessageBundle.get("dialog.graph.vrange.title"));
    }

    protected Control createDialogArea(Composite parent) {
        Composite composite = (Composite) super.createDialogArea(parent);
        composite.setLayout(new RowLayout(SWT.VERTICAL));
        Composite comp0 = new Composite(composite, SWT.NONE);
        comp0.setLayout(new RowLayout());

        Label label1 = new Label(comp0, SWT.NONE);
        label1.setText(MessageBundle.get("dialog.graph.vrange.min"));

        minField_ = new Text(comp0, SWT.BORDER);
        minField_.setText(String.format("%10.3f", base_));
        minfirst_ = true;
        minField_.addKeyListener(new KeyListener() {
            public void keyPressed(KeyEvent e) {
                if (minfirst_) {
                    minField_.setText("");
                    minfirst_ = false;
                }
            }

            public void keyReleased(KeyEvent e) {
                // TODO ???

            }

        });
        minField_.setFocus();

        minUnitLabel_ = new Label(comp0, SWT.NONE);
        minUnitLabel_.setText(unit_);

        Composite comp1 = new Composite(composite, SWT.NONE);
        comp1.setLayout(new RowLayout());

        Label label3 = new Label(comp1, SWT.NONE);
        label3.setText(MessageBundle.get("dialog.graph.vrange.max"));
        maxField_ = new Text(comp1, SWT.BORDER);
        maxField_.setText(String.format("%10.3f", base_ + extent_));
        maxfirst_ = true;
        maxField_.addKeyListener(new KeyListener() {
            public void keyPressed(KeyEvent e) {
                if (maxfirst_) {
                    maxField_.setText("");
                    maxfirst_ = false;
                }
            }

            public void keyReleased(KeyEvent e) {
                // TODO ???

            }

        });

        maxUnitLabel_ = new Label(comp1, SWT.NONE);
        maxUnitLabel_.setText(unit_);

        updated_ = false;
        return composite;
    }

    protected void buttonPressed(int buttonId) {
        if (buttonId == IDialogConstants.OK_ID) {
            double min, max;
            try {
                min = Double.parseDouble(minField_.getText());
                max = Double.parseDouble(maxField_.getText());
            } catch (NumberFormatException ex) {
                MessageDialog.openError(shell_, MessageBundle.get("dialog.graph.vrange.invalidinput.title"),
                        MessageBundle.get("dialog.graph.vrange.invalidinput.message"));
                minField_.setFocus(); // 
                return;
            }
            // ?
            if (min == max) {
                MessageDialog.openError(shell_, MessageBundle.get("dialog.graph.vrange.invalidrange.title"),
                        MessageBundle.get("dialog.graph.vrange.invalidrange.message"));
                minField_.setFocus(); // 
                return;
            }
            // 
            if (min < max) {
                base_ = min;
                extent_ = max - min;
            } else {
                base_ = max;
                extent_ = min - max;
            }
            updated_ = true;
        }
        setReturnCode(buttonId);
        close();
        super.buttonPressed(buttonId);
    }

    // -----------------------------------------------------------------
    // 

    /**
     * ??
     *
     * @param   unit    ??
     */
    public void setUnit(String unit) {
        unit_ = unit;
    }

    /**
     * 
     *
     * @param   base    
     */
    public void setBase(double base) {
        base_ = base;
    }

    /**
     * 
     *
     * @param   extent  
     */
    public void setExtent(double extent) {
        extent_ = extent;
    }

    /**
     * ?
     *
     * @param   
     */
    public double getBase() {
        return base_;
    }

    /**
     * ?
     *
     * @param   
     */
    public double getExtent() {
        return extent_;
    }

    /**
     * ?
     *
     * @param   
     */
    public boolean isUpdated() {
        return updated_;
    }
}