package timeflow.app.ui;
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import timeflow.model.*;
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import timeflow.data.db.*;
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import timeflow.data.time.*;
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import timeflow.util.*;
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import java.awt.*;
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import java.awt.geom.AffineTransform;
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public class SizeLegendPanel extends ModelPanel {
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Field sizeField;
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double min, max;
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public SizeLegendPanel(TFModel model)
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{
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super(model);
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setBackground(Color.white);
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}
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@Override
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public void note(TFEvent e) {
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Field size=getModel().getDB().getField(VirtualField.SIZE);
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if (size!=null && (size!=sizeField || e.affectsData()))
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{
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double[] minmax=DBUtils.minmax(getModel().getActs(), size);
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min=minmax[0];
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max=minmax[1];
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}
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sizeField=size;
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repaint();
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}
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public Dimension getPreferredSize()
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{
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return new Dimension(200,40);
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}
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public void paintComponent(Graphics g1)
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{
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Graphics2D g=(Graphics2D)g1;
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g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
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int w=getSize().width;
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int h=getSize().height;
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TFModel model=getModel();
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Display display=model.getDisplay();
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g.setColor(getBackground());
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g.setFont(display.plain());
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g.fillRect(0,0,w,h);
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g.setColor(Color.gray);
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if (sizeField==null)
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{
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return;
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}
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else if (Double.isNaN(min))
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{
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g.drawString("All values missing.",3,20);
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return;
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}
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else
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{
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AffineTransform old=g.getTransform();
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g.setTransform(AffineTransform.getTranslateInstance(20, 0));
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if (min==max)
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{
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g.setColor(Color.gray);
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g.fillOval(3,h/2-3,6,6);
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g.setColor(Color.black);
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g.setFont(display.tiny());
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g.drawString(format(min),12,h/2+5);
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}
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else
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{
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String leftLabel=format(min);
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String rightLabel=format(max);
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g.setFont(display.tiny());
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int lw=display.tinyFontMetrics().stringWidth(leftLabel);
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int rw=display.tinyFontMetrics().stringWidth(rightLabel);
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g.setColor(Color.black);
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int ty=h/2+5;;
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g.drawString(leftLabel,2,ty);
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g.setColor(Color.lightGray);
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double maxAbs=Math.max(Math.abs(min), Math.abs(max));
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int dx=8+lw;
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for (int i=0; i<5; i++)
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{
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double z=(i*max+(4-i)*min)/4;
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int r=(int)(Math.sqrt(Math.abs(z/maxAbs))*Display.MAX_DOT_SIZE);
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if (r<1)
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r=1;
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if (z>0)
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g.fillOval(dx,h/2-r,2*r,2*r);
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else
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g.drawOval(dx,h/2-r,2*r,2*r);
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dx+=5+2*r;
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}
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g.setColor(Color.black);
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g.drawString(rightLabel,dx+4,ty);
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}
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g.setTransform(old);
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}
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}
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String format(double x)
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{
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if (Math.abs(x)>10 && (max-min)>10)
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return Display.format(Math.round(x));
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return Display.format(x);
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}
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}
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