graphpanel.java

自己写的轮询提问的小程序 新手刚学 多多指教 合乎哈

/*
GraphPanel is the component responsible for drawing those nifty bar graphs
Copyright (C) 2005-2006  Igor Partola, Michael J. Krikonis, Clark University

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

package SharedClasses;

import SharedClasses.*;
import java.util.*;
import java.awt.Font;

public class GraphPanel extends javax.swing.JPanel {
    
    public GraphPanel() {
        initComponents();
        setBlank(true);
        QuestionLabel.setBackground(this.getBackground());
    }
    
    private void initComponents() {//GEN-BEGIN:initComponents
        BarB = new SharedClasses.Bar();
        BarC = new SharedClasses.Bar();
        BarD = new SharedClasses.Bar();
        ParticipationBar = new javax.swing.JProgressBar();
        jLabel1 = new javax.swing.JLabel();
        BarA = new SharedClasses.Bar();
        NoDataAvailableLabel = new javax.swing.JLabel();
        BarF = new SharedClasses.Bar();
        BarE = new SharedClasses.Bar();
        QuestionLabel = new javax.swing.JTextArea();

        setLayout(null);

        BarB.setColor(new java.awt.Color(0, 0, 153));
        BarB.setLabel("");
        add(BarB);
        BarB.setBounds(110, 140, 50, 190);

        BarC.setColor(new java.awt.Color(0, 153, 153));
        BarC.setLabel("");
        add(BarC);
        BarC.setBounds(180, 140, 50, 190);

        BarD.setColor(new java.awt.Color(102, 153, 255));
        BarD.setLabel("");
        add(BarD);
        BarD.setBounds(260, 140, 50, 190);

        ParticipationBar.setStringPainted(true);
        add(ParticipationBar);
        ParticipationBar.setBounds(160, 350, 150, 22);

        jLabel1.setFont(new java.awt.Font("Tahoma", 0, 11));
        jLabel1.setText("Participation rate");
        add(jLabel1);
        jLabel1.setBounds(90, 330, 90, 12);

        add(BarA);
        BarA.setBounds(30, 140, 50, 190);

        NoDataAvailableLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        NoDataAvailableLabel.setText("No data is available for this question");
        add(NoDataAvailableLabel);
        NoDataAvailableLabel.setBounds(130, 100, 250, 15);

        BarF.setColor(new java.awt.Color(204, 0, 204));
        BarF.setLabel("");
        add(BarF);
        BarF.setBounds(410, 140, 50, 190);

        BarE.setColor(new java.awt.Color(255, 255, 0));
        BarE.setLabel("");
        add(BarE);
        BarE.setBounds(330, 140, 50, 190);

        QuestionLabel.setBackground(new java.awt.Color(212, 208, 200));
        QuestionLabel.setEditable(false);
        QuestionLabel.setLineWrap(true);
        QuestionLabel.setWrapStyleWord(true);
        add(QuestionLabel);
        QuestionLabel.setBounds(20, 20, 460, 20);

    }//GEN-END:initComponents

    public void updateVotes(DataSet ds) {
        int gv = ds.getGreatesVote();
        
        BarA.setVoteCount(ds.getVoteCountA(), gv, ds.getVoterCount());
        BarB.setVoteCount(ds.getVoteCountB(), gv, ds.getVoterCount());
        BarC.setVoteCount(ds.getVoteCountC(), gv, ds.getVoterCount());
        BarD.setVoteCount(ds.getVoteCountD(), gv, ds.getVoterCount());
        BarE.setVoteCount(ds.getVoteCountE(), gv, ds.getVoterCount());
        BarF.setVoteCount(ds.getVoteCountF(), gv, ds.getVoterCount());

        ParticipationBar.setMaximum(ds.getVoterCount());
        ParticipationBar.setValue(ds.getVoteCountA() + ds.getVoteCountB() + 
            ds.getVoteCountC() + ds.getVoteCountD());
        repaint();
    }
    
    public void setBounds(int x, int y, int width, int height) {
        int MaxHeight = 3 * height / 5;
        int SpacerWidth = width / 30;
        int BarWidth = (width - 5*SpacerWidth) / 7;
        int BarPosition = 3 * height / 10;
        int ParticipationBarHeight = height/12;

        if (width*height > 202000) {
            QuestionLabel.setFont(new Font("Tahoma", Font.PLAIN, 20));
            BarA.setFont(new Font("Tahoma", Font.PLAIN, 16));
            BarB.setFont(new Font("Tahoma", Font.PLAIN, 16));
            BarC.setFont(new Font("Tahoma", Font.PLAIN, 16));
            BarD.setFont(new Font("Tahoma", Font.PLAIN, 16));
            BarE.setFont(new Font("Tahoma", Font.PLAIN, 16));
            BarF.setFont(new Font("Tahoma", Font.PLAIN, 16));
        }

        if (currentQuestion != null) {
            if (currentQuestion.getNumOfAnswers() == 6) {
                BarA.setBounds(2 * SpacerWidth + 0 * BarWidth, BarPosition, BarWidth, MaxHeight);
                BarB.setBounds(3 * SpacerWidth + 1 * BarWidth, BarPosition, BarWidth, MaxHeight);
                BarC.setBounds(4 * SpacerWidth + 2 * BarWidth, BarPosition, BarWidth, MaxHeight);
                BarD.setBounds(5 * SpacerWidth + 3 * BarWidth, BarPosition, BarWidth, MaxHeight);
                BarE.setBounds(6 * SpacerWidth + 4 * BarWidth, BarPosition, BarWidth, MaxHeight);
                BarF.setBounds(7 * SpacerWidth + 5 * BarWidth, BarPosition, BarWidth, MaxHeight);
            }
            
            if (currentQuestion.getNumOfAnswers() == 5) {
                BarA.setBounds((int) (2.5 * SpacerWidth + 0.5 * BarWidth), BarPosition, BarWidth, MaxHeight);
                BarB.setBounds((int) (3.5 * SpacerWidth + 1.5 * BarWidth), BarPosition, BarWidth, MaxHeight);
                BarC.setBounds((int) (4.5 * SpacerWidth + 2.5 * BarWidth), BarPosition, BarWidth, MaxHeight);
                BarD.setBounds((int) (5.5 * SpacerWidth + 3.5 * BarWidth), BarPosition, BarWidth, MaxHeight);
                BarE.setBounds((int) (6.5 * SpacerWidth + 4.5 * BarWidth), BarPosition, BarWidth, MaxHeight);

            }

            if (currentQuestion.getNumOfAnswers() == 4) {
                BarA.setBounds(3 * SpacerWidth + 1 * BarWidth, BarPosition, BarWidth, MaxHeight);
                BarB.setBounds(4 * SpacerWidth + 2 * BarWidth, BarPosition, BarWidth, MaxHeight);
                BarC.setBounds(5 * SpacerWidth + 3 * BarWidth, BarPosition, BarWidth, MaxHeight);
                BarD.setBounds(6 * SpacerWidth + 4 * BarWidth, BarPosition, BarWidth, MaxHeight);
            }

            if (currentQuestion.getNumOfAnswers() == 3) {
                BarA.setBounds((int) (3.5 * SpacerWidth + 1.5 * BarWidth), BarPosition, BarWidth, MaxHeight);
                BarB.setBounds((int) (4.5 * SpacerWidth + 2.5 * BarWidth), BarPosition, BarWidth, MaxHeight);
                BarC.setBounds((int) (5.5 * SpacerWidth + 3.5 * BarWidth), BarPosition, BarWidth, MaxHeight);
            }

            if (currentQuestion.getNumOfAnswers() == 2) {
                BarA.setBounds(4 * SpacerWidth + 2 * BarWidth, BarPosition, BarWidth, MaxHeight);
                BarB.setBounds(5 * SpacerWidth + 3 * BarWidth, BarPosition, BarWidth, MaxHeight);
            }
        }
        else {
                BarA.setBounds(2 * SpacerWidth + 0 * BarWidth, BarPosition, BarWidth, MaxHeight);
                BarB.setBounds(3 * SpacerWidth + 1 * BarWidth, BarPosition, BarWidth, MaxHeight);
                BarC.setBounds(4 * SpacerWidth + 2 * BarWidth, BarPosition, BarWidth, MaxHeight);
                BarD.setBounds(5 * SpacerWidth + 3 * BarWidth, BarPosition, BarWidth, MaxHeight);
                BarE.setBounds(6 * SpacerWidth + 4 * BarWidth, BarPosition, BarWidth, MaxHeight);
                BarF.setBounds(7 * SpacerWidth + 5 * BarWidth, BarPosition, BarWidth, MaxHeight);           
        }
        ParticipationBar.setBounds(SpacerWidth + BarWidth/2, MaxHeight + BarPosition + ParticipationBarHeight, 3 * SpacerWidth + 3 * BarWidth, ParticipationBarHeight);
        jLabel1.setBounds(SpacerWidth, MaxHeight + BarPosition + 8, 90, 14);
        
        int QuestionLabelHeight = (int) ((BarPosition - 30));
       
        
        QuestionLabel.setBounds(SpacerWidth, 16, width - 2*SpacerWidth, QuestionLabelHeight); 
        
        NoDataAvailableLabel.setBounds((width - 250)/2, height/2 - 8, 250, 15);
        
        super.setBounds(x, y, width, height);
    } 
    
    public void setQuestion(Question q) {
        currentQuestion = q;
        QuestionLabel.setText(q.getQuestion());
        setBounds(this.getX(), this.getY(), this.getWidth(), this.getHeight());
        BarA.setLabel(q.getAnswerA());
        BarB.setLabel(q.getAnswerB());
        BarC.setLabel(q.getAnswerC());
        BarD.setLabel(q.getAnswerD());
        BarE.setLabel(q.getAnswerE());
        BarF.setLabel(q.getAnswerF());

        if (currentQuestion.getNumOfAnswers() <= 3) BarC.setVisible(false);
        if (currentQuestion.getNumOfAnswers() <= 4) BarD.setVisible(false);
        if (currentQuestion.getNumOfAnswers() <= 5) BarE.setVisible(false);
        if (currentQuestion.getNumOfAnswers() <= 6) BarF.setVisible(false);
        
        if (currentQuestion.getDataSetListing().size() <= 0) setBlank(true);
        else setBlank(false);
    }
    
    public void setBlank(boolean b) {
        if (b) {
            BarA.setVisible(false);
            BarB.setVisible(false);
            BarC.setVisible(false);
            BarD.setVisible(false);
            BarE.setVisible(false);
            BarF.setVisible(false);
            jLabel1.setVisible(false);
            ParticipationBar.setVisible(false);
            QuestionLabel.setVisible(false);
            
            NoDataAvailableLabel.setVisible(true);
        }
        else {
            BarA.setVisible(true);
            BarB.setVisible(true);
            if (currentQuestion.getNumOfAnswers() >= 3) BarC.setVisible(true);
            if (currentQuestion.getNumOfAnswers() >= 4) BarD.setVisible(true);
            if (currentQuestion.getNumOfAnswers() >= 5) BarE.setVisible(true);
            if (currentQuestion.getNumOfAnswers() >= 6) BarF.setVisible(true);
            jLabel1.setVisible(false);
            ParticipationBar.setVisible(false);
            QuestionLabel.setVisible(true);
            
            NoDataAvailableLabel.setVisible(false);            
        }
        
        
    }
    
    public void setDisplayPercentage(boolean b) {
        BarA.setDisplayPercentage(b);
        BarB.setDisplayPercentage(b);
        BarC.setDisplayPercentage(b);
        BarD.setDisplayPercentage(b);
        BarE.setDisplayPercentage(b);
        BarF.setDisplayPercentage(b);
    }
    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private SharedClasses.Bar BarA;
    private SharedClasses.Bar BarB;
    private SharedClasses.Bar BarC;
    private SharedClasses.Bar BarD;
    private SharedClasses.Bar BarE;
    private SharedClasses.Bar BarF;
    private javax.swing.JLabel NoDataAvailableLabel;
    private javax.swing.JProgressBar ParticipationBar;
    private javax.swing.JTextArea QuestionLabel;
    private javax.swing.JLabel jLabel1;
    // End of variables declaration//GEN-END:variables
 
    Question currentQuestion;
}