source: tmcsimulator-scriptbuilder/branches/ScriptBuilder4/src/scriptbuilder/gui/panels/TimeStampPanel.java @ 6

package scriptbuilder.gui.panels;

import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import javax.swing.JPanel;
import scriptbuilder.gui.ScriptBuilderGuiConstants;
import scriptbuilder.structures.ScriptIncident;
import scriptbuilder.structures.SimulationScript;

public class TimeStampPanel extends JPanel
{
    private int longestLength = ScriptBuilderGuiConstants.TICK_TIMELINE_SMALLEST_LENGTH;

    public void setZoom(float zoom)
    {
        repaint();
    }

    public TimeStampPanel()
    {
        super();
    }

    public void update(SimulationScript script)
    {
        longestLength = ScriptBuilderGuiConstants.TICK_TIMELINE_SMALLEST_LENGTH;

        // Get the stats on the incidents
        int height = ScriptBuilderGuiConstants.TICK_TOP_MARGIN * 4;
        for (ScriptIncident incident : script.incidents)
        {
            if (incident != null)
            {
                height += incident.collapsed ?
                          ScriptBuilderGuiConstants.TIMELINE_OPENED_HEIGHT  :
                          ScriptBuilderGuiConstants.TIMELINE_OPENED_HEIGHT;
                if (incident.length > longestLength)
                    longestLength = incident.length;
            }
        }

        Dimension newSize = new Dimension(longestLength /
                ScriptBuilderGuiConstants.HORIZONTAL_TICK_RESOLUTION *
                ScriptBuilderGuiConstants.PIXEL_WIDTH_PER_HORIZONTAL_TICK +
                ScriptBuilderGuiConstants.TICK_TIMELINE_LEFT_MARGIN + 50,
                height);
        this.setPreferredSize(newSize);
        this.setSize(newSize);

        this.invalidate();
    }

    @Override
    public void paint(Graphics g)
    {
        super.paint(g);

        Graphics2D g2d = (Graphics2D)g;
        g2d.setFont(ScriptBuilderGuiConstants.TIMELINE_TICK_TIME_FONT);
        g2d.setColor(ScriptBuilderGuiConstants.TIMELINE_TICK_COLOR);
        int longestLengthPlusMargin = longestLength /
                ScriptBuilderGuiConstants.HORIZONTAL_TICK_RESOLUTION *
                ScriptBuilderGuiConstants.PIXEL_WIDTH_PER_HORIZONTAL_TICK +
                ScriptBuilderGuiConstants.TICK_TIMELINE_LEFT_MARGIN;
        int seconds = 0;

        // Major Ticks
        g2d.setColor(ScriptBuilderGuiConstants.TIMELINE_TICK_COLOR);
        seconds = 0;
        for (int i = ScriptBuilderGuiConstants.TICK_TIMELINE_LEFT_MARGIN;
             i <= longestLengthPlusMargin;
             i += ScriptBuilderGuiConstants.PIXEL_WIDTH_PER_HORIZONTAL_TICK *
                  ScriptBuilderGuiConstants.TICKS_PER_MAJOR_TICK,
             seconds += ScriptBuilderGuiConstants.HORIZONTAL_TICK_RESOLUTION *
                        ScriptBuilderGuiConstants.TICKS_PER_MAJOR_TICK)
        {
            g2d.drawString(seconds / 3600 + ":" +
                          (seconds / 60 % 60 > 9 ? seconds / 60 % 60 :
                                             "0" + seconds / 60 % 60)  +
                          ":00", i - 25, 18);

        }
    }
}