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

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

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/*
 * 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.Scale;
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 HRangeDialog extends Dialog {

    // -----------------------------------------------------------------
    // 
    // 
    public static final int RANGE_UPDATED = 1; // 
    public static final int POS_UPDATED = 2; // ?

    private static final int MARKER_POS_STEPS = 100; // ?

    // -----------------------------------------------------------------
    // 
    int updateFlag_; // 
    double hRange_; // 
    double maxHRange_; // 
    double minHRange_; // ?
    double markerPos_; // ?
    Text hRangeField_; // 
    Scale markerSlider_; // ?
    private boolean first_;
    private Shell shell_;

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

    protected void configureShell(Shell newShell) {
        super.configureShell(newShell);
        newShell.setText(MessageBundle.get("dialog.graph.hrange.title")); //$NON-NLS-1$
    }

    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.hrange.hrange")); //$NON-NLS-1$

        hRangeField_ = new Text(comp0, SWT.BORDER);
        hRangeField_.setText(String.format("%10.3f", hRange_)); //$NON-NLS-1$
        first_ = true;
        hRangeField_.addKeyListener(new KeyListener() {
            public void keyPressed(KeyEvent e) {
                if (first_) {
                    hRangeField_.setText(""); //$NON-NLS-1$
                    first_ = false;
                }
            }

            public void keyReleased(KeyEvent e) {
            }
        });
        hRangeField_.setFocus();

        Label label2 = new Label(comp0, SWT.NONE);
        label2.setText(MessageBundle.get("dialog.graph.hrange.unit")); //$NON-NLS-1$

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

        Label label3 = new Label(comp1, SWT.NONE);
        label3.setText(MessageBundle.get("dialog.graph.hrange.markerpos")); //$NON-NLS-1$

        markerSlider_ = new Scale(comp1, SWT.HORIZONTAL);
        markerSlider_.setMinimum(0);
        markerSlider_.setMaximum(MARKER_POS_STEPS);
        markerSlider_.setIncrement(10);
        markerSlider_.setSelection((int) (markerPos_ * MARKER_POS_STEPS));

        updateFlag_ = 0;
        return composite;
    }

    protected void buttonPressed(int buttonId) {
        if (buttonId == IDialogConstants.OK_ID) {
            double range;
            try {
                range = Double.parseDouble(hRangeField_.getText());
            } catch (NumberFormatException ex) {
                // 
                MessageDialog.openError(shell_, MessageBundle.get("dialog.graph.hrange.invalidinput.title"), //$NON-NLS-1$
                        MessageBundle.get("dialog.graph.hrange.invalidinput.message")); //$NON-NLS-1$

                hRangeField_.setFocus(); // 
                return;
            }
            // ?
            if (range < minHRange_ || range > maxHRange_) {
                // 
                MessageDialog.openError(shell_, MessageBundle.get("dialog.graph.hrange.invalidrange.title"), //$NON-NLS-1$
                        MessageBundle.get("dialog.graph.hrange.invalidrange.message") //$NON-NLS-1$
                                + "\n(" + minHRange_ + "  -  " + maxHRange_ + ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
                hRangeField_.setFocus(); // 
                return;
            }
            double pos = markerSlider_.getSelection() / (double) MARKER_POS_STEPS;
            // ?
            updateFlag_ = 0;
            if (range != hRange_) { // ?
                hRange_ = range;
                updateFlag_ += RANGE_UPDATED;
            }
            if (pos != markerPos_) { // ?
                markerPos_ = pos;
                updateFlag_ += POS_UPDATED;
            }
        }
        setReturnCode(buttonId);
        close();
        super.buttonPressed(buttonId);
    }

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

    /**
     * 
     *
     * @param   hRange  
     */
    public void setHRange(double hRange) {
        hRange_ = hRange;
    }

    /**
     * 
     *
     * @param   maxHRange   
     */
    public void setMaxHRange(double maxHRange) {
        maxHRange_ = maxHRange;
    }

    /**
     * ?
     *
     * @param   minHRange   ?
     */
    public void setMinHRange(double minHRange) {
        minHRange_ = minHRange;
    }

    /**
     * ?
     *
     * @param   markerPos   ?
     */
    public void setMarkerPos(double markerPos) {
        markerPos_ = markerPos;
    }

    /**
     * ?
     *
     * @param   
     */
    public double getHRange() {
        return hRange_;
    }

    /**
     * ??
     *
     * @param   ?
     */
    public double getMarkerPos() {
        return markerPos_;
    }

    /**
     * ?
     *
     * @param   
     */
    public int getUpdateFlag() {
        return updateFlag_;
    }

}