Package net.sf.arianne.marboard.client.gui.drawingtool

Source Code of net.sf.arianne.marboard.client.gui.drawingtool.StraightLineDrawingTool

package net.sf.arianne.marboard.client.gui.drawingtool;

import java.awt.event.MouseEvent;

import marauroa.common.game.RPAction;
import marauroa.common.game.RPObject;
import net.sf.arianne.marboard.client.core.MarboardClientFramework;
import net.sf.arianne.marboard.client.entity.shape.Shape;
import net.sf.arianne.marboard.client.entity.shape.StraightLine;
import net.sf.arianne.marboard.client.gui.BoardState;
import net.sf.arianne.marboard.client.gui.DrawingTool;
import net.sf.arianne.marboard.client.gui.component.DrawingArea;

/**
* a drawing tool for straight lines
*
* @author hendrik
*/
public class StraightLineDrawingTool implements DrawingTool {
 
  private boolean firstClick = true;
  private int startX;
  private int startY;
 
  private DrawingArea board;

  /**
   *creates a new StraightLineDrawingTool
   *
   * @param board DrawingArea
   */
  public StraightLineDrawingTool(DrawingArea board) {
    super();
    this.board = board;
  }

  /**
   * handles mouse events. On the first click the position is remembered
   * and on the second click the line is drawn
   *
   * @param boardState state of the board
   * @param event MouseEvent
   */
  public void handleMouseEvent(BoardState boardState, MouseEvent event) {
    if (firstClick) {
      startX = event.getX();
      startY = event.getY();
      firstClick = false;
    } else {
      handleSecondEvent(boardState, event);
    }
  }

  /**
   * tells the server to draw the line. The selected color,
   * and thickness are used.
   *
   * @param boardState state of the board
   * @param event MouseEvent
   */
  private void handleSecondEvent(BoardState boardState, MouseEvent event) {
    RPAction action = new RPAction();
    action.put("type", "create_straight_line_action");
    action.put("x", startX);
    action.put("y", startY);
    int directionX = event.getX();
    int directionY = event.getY();
    action.put("x2", directionX);
    action.put("y2", directionY);
    action.put("color", boardState.getColor().getRGB());
    action.put("thickness", boardState.getThickness());
    MarboardClientFramework.executeAction(action);
    board.undrawTemporaryShape();
    reset();
  }

  /**
   * resets the tool
   */
  public void reset() {
    firstClick = true;
  }

  /**
   * draws a preview version of the line when the mouse is moved
   * after the first click. The preview line is drawn using xor so that
   * simply drawing it again will delte it.
   *
   * @param boardState state of the board
   * @param event MouseEvent
   */
  public void handleMouseMovement(BoardState boardState, MouseEvent event) {
    if(!firstClick) {
      RPObject rpobject = new RPObject();
      rpobject.put("color", boardState.getColor().getRGB());
      rpobject.put("thickness", boardState.getThickness());
      rpobject.put("x", startX);
      rpobject.put("y", startY);
      rpobject.put("x2", event.getX());
      rpobject.put("y2", event.getY());
      Shape line = new StraightLine(rpobject);
      board.drawTemporaryShape(line);
    }
  }
}
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