VRangeDialog.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.Shell;
import org.eclipse.swt.widgets.Text;

import com.generalrobotix.ui.util.MessageBundle;


public class VRangeDialog extends Dialog {

    // -----------------------------------------------------------------
    // インスタンス変数
    double base_;       // 基準値
    double extent_;     // 幅
    boolean updated_;   // 更新フラグ
    String unit_;       // 単位文字列
    Text minField_;   // 最小値フィールド
    Text maxField_;   // 最大値フィールド
    Label minUnitLabel_;   // 最小値単位ラベル
    Label maxUnitLabel_;   // 最大値単位ラベル
    private Shell shell_;
    private boolean minfirst_;
    private boolean maxfirst_;
    
    // -----------------------------------------------------------------
    // コンストラクタ
    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 自動生成されたメソッド・スタブ
                                
                        }
                
        });
        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 自動生成されたメソッド・スタブ
                                
                        }
                
        });
        
        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();    // フォーカス設定
                return;
            }
            // 入力値チェック
            if (min == max) {
                MessageDialog.openError(shell_, 
                                MessageBundle.get("dialog.graph.vrange.invalidrange.title"),
                                MessageBundle.get("dialog.graph.vrange.invalidrange.message"));
                 minField_.setFocus();    // フォーカス設定
                return;
            }
            // 値更新
            if (min < max) {
                base_ = min;
                extent_ = max - min;
            } else {
                base_ = max;
                extent_ = min - max;
            }
            updated_ = true;            
        }
        setReturnCode(buttonId);
        close();
        super.buttonPressed(buttonId);
    }
  
    // -----------------------------------------------------------------
    // メソッド
    
    public void setUnit(
        String unit
    ) {
        unit_ = unit;
    }

    public void setBase(
        double base
    ) {
        base_ = base;
    }

    public void setExtent(
        double extent
    ) {
        extent_ = extent;
    }

    public double getBase() {
        return base_;
    }

    public double getExtent() {
        return extent_;
    }

    public boolean isUpdated() {
        return updated_;
    }
}