source: tmcsimulator-scriptbuilder/trunk/src/scriptbuilder/gui/panels/TimelineTickPanel.java @ 54

package scriptbuilder.gui.panels;



import java.awt.Dimension;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.event.MouseEvent;

import javax.swing.JPanel;

import javax.swing.event.MouseInputAdapter;

import scriptbuilder.gui.IncidentEditorFrame;

import scriptbuilder.gui.ScriptBuilderFrame;

import scriptbuilder.gui.ScriptBuilderGuiConstants;

import scriptbuilder.gui.drawers.EventIconDrawer;

import scriptbuilder.structures.ScriptIncident;

import scriptbuilder.structures.SimulationScript;



/**

 * Represents the underlying panel on the main timeline. All the

 * IncidentTimelinePanel objects sit over it. This panel draws all the

 * per-minute ticks on the timeline, and adjusts and scales them as necessary.

 *

 * @author Greg Eddington <geddingt@calpoly.edu>

 * @author Bryan McGuffin

 */

public class TimelineTickPanel extends JPanel

{



    private int longestLength = ScriptBuilderGuiConstants.TICK_TIMELINE_SMALLEST_LENGTH;

    private int x, y;

    private boolean focused = false;



    public void setZoom(float zoom)

    {

        repaint();

    }



    /**

     * Listener for the mouse. Is notified when the mouse enters, exits, or

     * moves around on the panel.

     */

    public class TimelineTickMouseListener extends MouseInputAdapter

    {



        /**

         * When the mouse enters the panel, the panel gets focus.

         *

         * @param e the mouse event

         */

        @Override

        public void mouseEntered(MouseEvent e)

        {

            focused = true;

        }



        /**

         * When the mouse leaves the panel, the panel loses focus and refreshes.

         *

         * @param e the mouse event

         */

        @Override

        public void mouseExited(MouseEvent e)

        {

            focused = false;

            repaint();

        }



        /**

         * When the mouse moves around in the panel, the panel refreshes and

         * updates its mouse tracker.

         *

         * @param e

         */

        @Override

        public void mouseMoved(MouseEvent e)

        {

            x = e.getX();

            y = e.getY();



            repaint();

        }

    }



    /**

     * Constructor. Set up the mouse listener.

     */

    public TimelineTickPanel()

    {

        super();



        TimelineTickMouseListener mouseListener

                = new TimelineTickMouseListener();

        addMouseMotionListener(mouseListener);

        addMouseListener(mouseListener);

    }



    /**

     * Update the panel's dimensions based on number of events, zoom level, and

     * which events are collapsed.

     *

     * @param script The main script model

     */

    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 + incident.offset) > longestLength)

                {

                    longestLength = incident.length + incident.offset;

                }

            }

        }



        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();

    }



    /**

     * Update the panel's dimensions based on number of events, zoom level, and

     * which events are collapsed.

     *

     * @param script The main script model

     */

    public void update(ScriptIncident incident)

    {

        longestLength = ScriptBuilderGuiConstants.TICK_TIMELINE_SMALLEST_LENGTH;



        // Get the stats on the incidents

        int height = ScriptBuilderGuiConstants.TICK_TOP_MARGIN * 4;



        if (incident != null)

        {

            height += incident.collapsed

                    ? ScriptBuilderGuiConstants.TIMELINE_OPENED_HEIGHT

                    : ScriptBuilderGuiConstants.TIMELINE_OPENED_HEIGHT;

            if ((incident.length + incident.offset) > longestLength)

            {

                longestLength = incident.length + incident.offset;

            }



        }



        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();

    }



    /**

     * Refresh the panel. Redraw the ticks based on zoom level, panel

     * dimensions, and offset. If the user is trying to add an event, draw that

     * event's icon under the mouse.

     *

     * @param g The graphics component

     */

    @Override

    public void paint(Graphics g)

    {

        super.paint(g);



        Graphics2D g2d = (Graphics2D) g;



        // Draw the horizontal line

        g2d.setFont(ScriptBuilderGuiConstants.TIMELINE_TICK_TIME_FONT);

        g2d.setColor(ScriptBuilderGuiConstants.TIMELINE_TICK_COLOR);

        g2d.fillRect(0, ScriptBuilderGuiConstants.TICK_TIMELINE_TOP_MARGIN,

                longestLength, ScriptBuilderGuiConstants.TICK_TIMELINE_HEIGHT);



        // Draw the ticks

        int longestLengthPlusMargin = longestLength

                / ScriptBuilderGuiConstants.HORIZONTAL_TICK_RESOLUTION

                * ScriptBuilderGuiConstants.PIXEL_WIDTH_PER_HORIZONTAL_TICK

                + ScriptBuilderGuiConstants.TICK_TIMELINE_LEFT_MARGIN;



        // Minutes

        g2d.setColor(ScriptBuilderGuiConstants.MINOR_TICK_COLOR);

        int seconds = 0;

        for (int i = ScriptBuilderGuiConstants.TICK_TIMELINE_LEFT_MARGIN;

                i <= longestLengthPlusMargin;

                i += ScriptBuilderGuiConstants.PIXEL_WIDTH_PER_HORIZONTAL_TICK, seconds += ScriptBuilderGuiConstants.HORIZONTAL_TICK_RESOLUTION)

        {

            g2d.drawLine(i, ScriptBuilderGuiConstants.TICK_TOP_MARGIN,

                    i, ScriptBuilderGuiConstants.TICK_HEIGHT);

        }



        // 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.drawLine(i, ScriptBuilderGuiConstants.TICK_TOP_MARGIN,

                    i, ScriptBuilderGuiConstants.TICK_HEIGHT);



        }



        paintChildren(g);



        if (this.getTopLevelAncestor() instanceof ScriptBuilderFrame)

        {

            if (focused

                    && ((ScriptBuilderFrame) this.getTopLevelAncestor()).currentEventType != null)

            {

                EventIconDrawer.DrawEventIcon(g2d,

                        ((ScriptBuilderFrame) this.getTopLevelAncestor()).currentEventType,

                        x, y);

            }

        }

        if (this.getTopLevelAncestor() instanceof IncidentEditorFrame)

        {

            if (focused

                    && ((IncidentEditorFrame) this.getTopLevelAncestor()).currentEventType != null)

            {

                EventIconDrawer.DrawEventIcon(g2d,

                        ((IncidentEditorFrame) this.getTopLevelAncestor()).currentEventType,

                        x, y);

            }

        }

    }

}