Subversion Repositories fpga-cf

package edu.byu.cc.plieber.fpgaenet.modmod;

import java.util.ArrayList;

import com.trolltech.qt.gui.*;

import com.trolltech.qt.gui.QSizePolicy.Policy;

import edu.byu.cc.plieber.fpgaenet.fcp.FCPException;

import edu.byu.cc.plieber.fpgaenet.fcp.FCPProtocol;

import edu.byu.cc.plieber.util.StringUtil;

public class SHA1Widget extends ModuleControlWidget{

    public SHA1Widget(QWidget parent, FCPProtocol protocol){

        super(parent);

        fcpProtocol = protocol;

        createWidgets();

        connectSignalsAndSlots();

    }

    private QVBoxLayout mainLayout;

    private QHBoxLayout formatLayout;

    private QLabel lblTitle;

    private QRadioButton radASCII;

    private QRadioButton radHex;

    private QLineEdit txtRead;

    private QPushButton btnCalculate;

    private QLineEdit txtResult;

    FCPProtocol fcpProtocol;

        private void createWidgets() {

                mainLayout = new QVBoxLayout(this);

                this.setLayout(mainLayout);

                lblTitle = new QLabel("SHA1 Calculator");

                mainLayout.addWidget(lblTitle);

                formatLayout = new QHBoxLayout();

                mainLayout.addLayout(formatLayout);

                radASCII = new QRadioButton("ASCII");

                radASCII.setChecked(true);

                radHex = new QRadioButton("Hex");

                formatLayout.addWidget(radASCII);

                formatLayout.addWidget(radHex);

                formatLayout.addStretch();

                txtRead = new QLineEdit();

                btnCalculate = new QPushButton("Calculate");

                btnCalculate.setSizePolicy(new QSizePolicy(Policy.Maximum, Policy.Maximum));

                txtResult = new QLineEdit();

                mainLayout.addWidget(txtRead);

                mainLayout.addWidget(btnCalculate);

                mainLayout.addWidget(txtResult);

                mainLayout.addStretch();

        }

        private void connectSignalsAndSlots() {

                btnCalculate.clicked.connect(this, "calculate()");

        }

        @Override

        public void setChannelNumber(int channelNumber) {

                this.channelNumber = channelNumber;

                lblTitle.setText("SHA1 Calculator (Channel " + channelNumber + ")");

        }

        @SuppressWarnings("unused")

        private void calculate() {

                String text = txtRead.text();

                ArrayList<Byte> pass;

                long len = 0;

                if (radASCII.isChecked()) {

                        pass = StringUtil.stringToByteList(text);

                        len = text.length();

                }

                else {

                        String[] tokens = text.split(" ");

                        pass = new ArrayList<Byte>();

                        for (String bytestr : tokens) {

                                pass.add((byte) Integer.parseInt(bytestr, 16));

                        }

                        len = pass.size();

                }

                pass.add(new Byte((byte)0x80));

                while (pass.size()*8 % 512 != 448) {

                        pass.add(new Byte((byte)0x00));

                }

                len = len * 8;

                pass.add(new Byte((byte)((len >> 56) & 0xff)));

                pass.add(new Byte((byte)((len >> 48) & 0xff)));

                pass.add(new Byte((byte)((len >> 40) & 0xff)));

                pass.add(new Byte((byte)((len >> 32) & 0xff)));

                pass.add(new Byte((byte)((len >> 24) & 0xff)));

                pass.add(new Byte((byte)((len >> 16) & 0xff)));

                pass.add(new Byte((byte)((len >> 8) & 0xff)));

                pass.add(new Byte((byte)((len) & 0xff)));

                try {

                        fcpProtocol.send(channelNumber, pass, pass.size());

                        fcpProtocol.sendDataRequest(channelNumber, 20);

                } catch (FCPException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

                byte[] bytes = fcpProtocol.getDataResponse();

                txtResult.clear();

                txtResult.setText(StringUtil.arrayToHexString(bytes));

        }

}