org.yaoqiang.graph.shape.TaskShape Maven / Gradle / Ivy

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an Open Source BPMN 2.0 Modeler
There is a newer version: 2.2.18
package org.yaoqiang.graph.shape;

import java.awt.BasicStroke;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.util.Map;

import org.yaoqiang.graph.util.Constants;

import com.mxgraph.canvas.mxGraphics2DCanvas;
import com.mxgraph.shape.mxRectangleShape;
import com.mxgraph.util.mxConstants;
import com.mxgraph.util.mxUtils;
import com.mxgraph.view.mxCellState;

/**
 * TaskShape
 * 
 * @author Shi Yaoqiang([email protected])
 */
public class TaskShape extends mxRectangleShape {

	/**
	 * 
	 */
	public void paintShape(mxGraphics2DCanvas canvas, mxCellState state) {
		super.paintShape(canvas, state);

		Map style = state.getStyle();

		double scale = canvas.getScale();
		double imgWidth = 16 * scale;
		double imgHeight = 16 * scale;
		int spacing = 5;
		Rectangle imageBounds = state.getRectangle();
		imageBounds.setRect(imageBounds.getX() + spacing, imageBounds.getY() + spacing - 2, imgWidth, imgHeight);

		canvas.drawImage(imageBounds, canvas.getImageForStyle(style));
		String type = mxUtils.getString(style, Constants.STYLE_TYPE, "");
		if (type.equals("receive")) {
			if (mxUtils.isTrue(style, Constants.STYLE_INSTANTIATE, false)) {
				Graphics2D g = canvas.getGraphics();
				float pw = (float) (mxUtils.getFloat(style, mxConstants.STYLE_STROKEWIDTH, 1) * scale);
				g.setStroke(new BasicStroke(pw));
				g.drawOval((int) imageBounds.getX() - 3, (int) imageBounds.getY() - 2, (int) (imgWidth * 1.39), (int) (imgHeight * 1.39));
			}
		}
		String loop = mxUtils.getString(style, Constants.STYLE_LOOP_IMAGE, " ");
		String compensation = mxUtils.getString(style, Constants.STYLE_COMPENSATION_IMAGE, " ");
		if (!loop.equals(" ") || !compensation.equals(" ")) {
			Rectangle markerImageBounds = state.getRectangle();
			if (!loop.equals(" ") && !compensation.equals(" ")) {
				markerImageBounds.setRect(markerImageBounds.getX() + (markerImageBounds.getWidth() / 2 - imgWidth), markerImageBounds.getY()
						+ markerImageBounds.getHeight() - imgHeight, imgWidth, imgHeight);
				canvas.drawImage(markerImageBounds, loop);
				markerImageBounds.setRect(markerImageBounds.getX() + (markerImageBounds.getWidth() + imgWidth) / 2, markerImageBounds.getY() + markerImageBounds.getHeight()
						- imgHeight, imgWidth, imgHeight);
				canvas.drawImage(markerImageBounds, compensation);
			} else {
				markerImageBounds.setRect(markerImageBounds.getX() + (markerImageBounds.getWidth() - imgWidth) / 2, markerImageBounds.getY()
						+ markerImageBounds.getHeight() - imgHeight, imgWidth, imgHeight);
				if (!loop.equals(" ")) {
					canvas.drawImage(markerImageBounds, loop);
				} else {
					canvas.drawImage(markerImageBounds, compensation);
				}
			}
		}

	}

	public int getArcSize(int w, int h) {
		return Constants.RECTANGLE_ARCSIZE;
	}

}