ecgplotwindow.java

egc 心电信号检测的源程序

    private void resetButtons(){
        animateStopButton.setEnabled(false);
        animateStartButton.setEnabled(false);
        exportButton.setEnabled(false);        
        clearButton.setEnabled(false);
        zoomInButton.setEnabled(false);
        zoomOutButton.setEnabled(false);
    }

    /* Enable the buttons after generating the ecg Data. */
    private void enableButtons(){
        animateStartButton.setEnabled(true);
        exportButton.setEnabled(true);
        clearButton.setEnabled(true);
        zoomInButton.setEnabled(true);
        zoomOutButton.setEnabled(true);
    }

    private void resetPlotArea(){
        lblMaxAmplitude.setText("1.4");
        lblMinAmplitude.setText("-1.4");
        readyToPlot = false;
        plotScrollBarValue = 0;
    }

    /*
     * Set the appropiate state of the controls for start the ECG Animation
     */
    private void startECGAnimationSetControls(){
        animateStopButton.setEnabled(true);

        //exportButton.setEnabled(true);
        clearButton.setEnabled(false);
        generateButton.setEnabled(false);

        zoomInButton.setEnabled(false);
        zoomOutButton.setEnabled(false);
        
        animateStartButton.setEnabled(false);
    }

    /*
     * Set the appropiate state of the controls for stop the ECG Animation
     */
    private void stopECGAnimationSetControls(){
        animateStartButton.setEnabled(true);

        clearButton.setEnabled(true);
        generateButton.setEnabled(true);
        zoomInButton.setEnabled(true);
        zoomOutButton.setEnabled(true);

        animateStopButton.setEnabled(false);
    }

    private void fillDataTable(){
        // Delete the DataTable
        for(int i=0;i<calcOb.getEcgResultNumRows();i++){
            Vector nuevoRow = new Vector(3);
            nuevoRow.addElement(new String(Double.toString(calcOb.getEcgResultTime(i))));
            nuevoRow.addElement(new String(Double.toString(calcOb.getEcgResultVoltage(i))));
            nuevoRow.addElement(new String(Integer.toString(calcOb.getEcgResultPeak(i))));
            tableValuesModel.addRow(nuevoRow);
        }
    }

    /**
     *   Draw a string in the center of a given box.
     *   Reduce the font size if necessary to fit. Can
     *   fix the type size to a value passed as an argument.
     *   The position of the string within the box passed
     *   as LEFT, CENTER or RIGHT constant value.
     *   Don't draw the strings if they do not fit.
     */
    private int drawText(   Graphics g, String msg, int xBox, int yBox, int boxWidth, int boxHeight,
                            int fixedTypeSizeValue, int position){
        boolean fixedTypeSize = false;
        int typeSize = 24;

        // Fixed to a particular type size.
        if(fixedTypeSizeValue > 0) {
            fixedTypeSize = true;
            typeSize = fixedTypeSizeValue;
        }

        int typeSizeMin = 8;
        int x=xBox,y=yBox;
        do {
            // Create the font and pass it to the  Graphics context
            g.setFont(new Font("Monospaced",Font.PLAIN,typeSize));

            // Get measures needed to center the message
            FontMetrics fm = g.getFontMetrics();

            // How many pixels wide is the string
            int msgWidth = fm.stringWidth(msg);

            // How tall is the text?
            int msgHeight = fm.getHeight();

            // See if the text will fit in the allotted
            // vertical limits
            if( msgHeight < boxHeight && msgWidth < boxWidth) {
                y = yBox + boxHeight/2 +(msgHeight/2);
                if( position == CENTER)
                    x = xBox + boxWidth/2 - (msgWidth/2);
                else if(position == RIGHT)
                    x = xBox + boxWidth - msgWidth;
                else
                    x = xBox;

                break;
            }

            // If fixedTypeSize and wouldn't fit, don't draw.
            if( fixedTypeSize) return -1;

            // Try smaller type
            typeSize -= 2;

        } while (typeSize >= typeSizeMin);

        // Don't display the numbers if they did not fit
        if( typeSize < typeSizeMin) return -1;

        // Otherwise, draw and return positive signal.
        g.drawString(msg,x,y);
//                ecgFrame.revalidate();
//                ecgFrame.repaint();        
        return typeSize;
    }

    /*
    * This class is the AdjustmentListener for the
    * scroll bar. So the events come here when the
    * scroll bar is moved.
    */
    public void adjustmentValueChanged(AdjustmentEvent evt){
    plotScrollBarValue = plotScrollBar.getValue();
    ecgFrame.repaint();
    }

    class ecgPanel extends javax.swing.JPanel{

        public void paintComponent(Graphics g){
            // First call the paintComponent of the
            // superclass, in this case JPanel.
            super.paintComponent(g);

            /* Draw the plot frame. */
            g.setColor(frameLineColor);
            g.drawLine(0, posFrameY, ecgFrame.getBounds().width, posFrameY);
            g.drawLine(0, posOriginY, this.getBounds().width, posOriginY);
            g.drawLine(0, horzScaleY, this.getBounds().width, horzScaleY);

            if(readyToPlot){
                //JOptionPane.showMessageDialog(EcgPlotWindow.this, "Entro en la funcion paint");
                int rows = tableValuesModel.getRowCount();
                int x, y, i;
                int plotLimit;
                int initialZero;
                int curSecond, lastSecond;
                String strValue;

                /*
                 * Set the first point to the current Table row
                 */
                initialZero =  (int)(Double.valueOf(tableValues.getValueAt(plotScrollBarValue, 0).toString()).doubleValue() / plotZoom);
                lastSecond = (int)(Double.valueOf(tableValues.getValueAt(plotScrollBarValue, 0).toString()).doubleValue());
                x = 0;
                y = posOriginY - (int)(Double.valueOf(tableValues.getValueAt(plotScrollBarValue, 1).toString()).doubleValue() * frameAmplitude / paramOb.getAmplitude());
                Point lastPoint = new java.awt.Point(x, y);
                i= plotScrollBarValue;

                while((x <= this.getBounds().width)&& (i <=rows)){
                    //JOptionPane.showMessageDialog(EcgPlotWindow.this, "Entro al while de paint");
                    curSecond = (int)(Double.valueOf(tableValues.getValueAt(i, 0).toString()).doubleValue());
                    if(curSecond > lastSecond){
                        lastSecond = curSecond;
                        // Convert the x value to a string
                        strValue = EcgFormatNumber.toString(Double.valueOf(tableValues.getValueAt(i, 0).toString()).doubleValue(), upLimit, loLimit, 2);
                        /*
                         * Plot the X axes number values (the Time).
                         */
                        g.setColor(axesNumColor);
                        drawText(g, strValue,
                        x, horzScaleY, horzScaleWidth, horzScaleHeight,
                        fScaleNumSize,LEFT);
                        g.setColor(frameInsideLineColor);
                        g.drawLine(x, posFrameY, x, horzScaleY + 5);
                    }

                    /*
                     * Plot a line between the las point and the current point.
                     * This to create a illusion to connect the two points.
                     */
                    g.setColor(ecgPlotColor);
                    g.drawLine(lastPoint.x, lastPoint.y, x, y);

                    /*
                     * Set the current point to be the last, and 
                     * get a new point to plot in the following loop.
                     */
                    lastPoint.setLocation(x, y);
                    i+= 1;
                    x = (int)(Double.valueOf(tableValues.getValueAt(i, 0).toString()).doubleValue() / plotZoom) - initialZero;
                    y = posOriginY - (int)(Double.valueOf(tableValues.getValueAt(i, 1).toString()).doubleValue() * frameAmplitude / paramOb.getAmplitude());
                }
            }
        }
    }

    /*
     * Class to plot the ECG animation
     */
    class ECGAnimate extends TimerTask{

        int x = 0;
        int y = posOriginY - (int)(Double.valueOf(tableValues.getValueAt(ecgAnimateCurRow, 1).toString()).doubleValue() * frameAmplitude / paramOb.getAmplitude());
        int curSecond = 0;
        int lastSecond = 0;
        Graphics ga = ecgFrame.getGraphics();

        public void run(){
            curSecond = (int)(Double.valueOf(tableValues.getValueAt(ecgAnimateCurRow, 0).toString()).doubleValue());
            if(curSecond > lastSecond){
                lastSecond = curSecond;
                /*
                 * Plot the X axes number values (the Time).
                 */
                ga.setColor(axesNumColor);
                drawText(ga, EcgFormatNumber.toString(Double.valueOf(tableValues.getValueAt(ecgAnimateCurRow, 0).toString()).doubleValue(), upLimit, loLimit, 2),
                x, horzScaleY, horzScaleWidth, horzScaleHeight,
                fScaleNumSize,LEFT);

                ga.setColor(frameInsideLineColor);
                ga.drawLine(x, posFrameY, x, horzScaleY + 5);

            }

            ga.setColor(ecgPlotColor);
            ga.drawLine(ecgAnimateLastPoint.x, ecgAnimateLastPoint.y, x, y);
            ecgAnimateCurRow += 1;

            if(ecgAnimateCurRow >= ecgAnimateNumRows){
                /*
                 * If we reach the end of the Data Table, loop again entire table.
                 */
                ecgFrame.repaint();
                ecgAnimateCurRow = 0;
                ecgAnimateInitialZero = 0;
                x = 0;
                y = posOriginY - (int)(Double.valueOf(tableValues.getValueAt(ecgAnimateCurRow, 1).toString()).doubleValue() * frameAmplitude / paramOb.getAmplitude());
                ecgAnimateLastPoint.setLocation(x, y);
                curSecond  = 0;
                lastSecond = 0;

            } else if(x > ecgAnimatePanelWidth){
                /*
                 * If we not reached the end of the Data Table, but we reach to the limit of
                 * the Plot Area. so reset the X coordinate to begin again.
                 */
                ecgFrame.repaint();
                x = 0;
                y = posOriginY - (int)(Double.valueOf(tableValues.getValueAt(ecgAnimateCurRow, 1).toString()).doubleValue() * frameAmplitude / paramOb.getAmplitude());
                ecgAnimateInitialZero = (int)(Double.valueOf(tableValues.getValueAt(ecgAnimateCurRow, 0).toString()).doubleValue() / plotZoom);
                ecgAnimateLastPoint.setLocation(x, y);
                //curSecond  = 0;
                //lastSecond = 0;
            } else{
                ecgAnimateLastPoint.setLocation(x, y);
                x = (int)(Double.valueOf(tableValues.getValueAt(ecgAnimateCurRow, 0).toString()).doubleValue() / plotZoom) - ecgAnimateInitialZero;
                y = posOriginY - (int)(Double.valueOf(tableValues.getValueAt(ecgAnimateCurRow, 1).toString()).doubleValue() * frameAmplitude / paramOb.getAmplitude());                
            }
        }
    }
}