SelectShapeTool.java :  » Math » migen » uk » ac » lkl » migen » mockup » shapebuilder » ui » tool » shape » Java Open Source

package uk.ac.lkl.migen.mockup.shapebuilder.ui.tool.shape;

import java.awt.Color;
import java.awt.Graphics2D;

import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;

import java.awt.geom.*;

import uk.ac.lkl.common.ui.NotifyingLine;
import uk.ac.lkl.common.util.value.DoubleValue;

import uk.ac.lkl.migen.mockup.shapebuilder.Configuration;

import uk.ac.lkl.migen.mockup.shapebuilder.model.shape.ExpressedShape;
import uk.ac.lkl.migen.mockup.shapebuilder.model.shape.LineExpression;
import uk.ac.lkl.migen.mockup.shapebuilder.ui.*;

public abstract class SelectShapeTool extends ShapeTool {

    public SelectShapeTool(ShapePlotter shapePlotter, String buttonText) {
  super(shapePlotter, buttonText);
    }

    protected void initialiseTool() {
  super.initialiseTool();
    }

    @Override
    protected void processKeyPressed(KeyEvent e) {
  // hack - repeated work here with menu item
  boolean deleteShapeEnabled = Configuration.getConfiguration().getBooleanParameter("delete-shape-enabled");
  if (! deleteShapeEnabled)
      return;
  
  if (e.getKeyCode() == KeyEvent.VK_BACK_SPACE
    || e.getKeyCode() == KeyEvent.VK_DELETE) {
      ExpressedShape selectedShape = shapePlotter.getSelectedShape();
      if (selectedShape == null)
    return;

      getModel().removeShape(selectedShape);
  }
    }

    protected void paintToolMarks(Graphics2D g2) {
  ExpressedShape selectedShape = shapePlotter.getSelectedShape();

  if (selectedShape == null)
      return;

  Rectangle2D.Double bounds = selectedShape.getBounds2D();
  bounds.setRect(bounds.getX() * shapePlotter.getGridSize(), bounds
    .getY()
    * shapePlotter.getGridSize(), bounds.getWidth()
    * shapePlotter.getGridSize(), bounds.getHeight()
    * shapePlotter.getGridSize());

  g2.setColor(Color.RED);
  g2.fill(new Rectangle2D.Double(bounds.getX() - 2, bounds.getY() - 2, 4,
    4));
  g2.fill(new Rectangle2D.Double(bounds.getX() + bounds.getWidth() - 2,
    bounds.getY() - 2, 4, 4));
  g2.fill(new Rectangle2D.Double(bounds.getX() + bounds.getWidth() - 2,
    bounds.getY() + bounds.getHeight() - 2, 4, 4));
  g2.fill(new Rectangle2D.Double(bounds.getX() - 2, bounds.getY()
    + bounds.getHeight() - 2, 4, 4));
  g2.draw(bounds);
    }

    protected final void processMouseMoved(MouseEvent e) {
  NotifyingLine<DoubleValue> closestLine = shapePlotter.getClosestLine(e);
  shapePlotter.setHighlightedLine(closestLine);
  doProcessMouseMoved(e);
    }

    protected void doProcessMouseMoved(MouseEvent e) {
  // do nothing
    }

    protected final void processMouseClicked(MouseEvent e) {
  if (e.getClickCount() == 2)
      processDoubleClick(e);
  else
      doProcessMouseClicked(e);
    }

    private void processDoubleClick(MouseEvent e) {
  NotifyingLine<DoubleValue> highlightedLine = shapePlotter.getHighlightedLine();

  if (highlightedLine == null)
      return;

  ExpressedShape shape = shapePlotter.getShape(highlightedLine);
  LineExpression lineVariable = new LineExpression(shape, highlightedLine);
  getModel().addPaletteExpression(lineVariable);
    }

    protected void doProcessMouseClicked(MouseEvent e) {
  // do nothing
    }

}