annis.gui.widgets.SimpleCanvas.java Source code

Introduction

Here is the source code for annis.gui.widgets.SimpleCanvas.java

Source

/*
 * Copyright 2011 Corpuslinguistic working group Humboldt University Berlin.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package annis.gui.widgets;

import com.vaadin.server.PaintException;
import com.vaadin.server.PaintTarget;
import com.vaadin.ui.AbstractComponent;
import com.vaadin.ui.LegacyComponent;
import java.awt.geom.Line2D;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

/**
 *
 * @author thomas
 */
public class SimpleCanvas extends AbstractComponent implements LegacyComponent {
    private List<Line2D> lines;

    public SimpleCanvas() {
        lines = new LinkedList<>();
    }

    @Override
    public void paintContent(PaintTarget target) throws PaintException {
        target.startTag("clear");
        target.endTag("clear");

        for (Line2D l : lines) {
            target.startTag("line");
            target.addAttribute("from_x", l.getX1());
            target.addAttribute("from_y", l.getY1());
            target.addAttribute("to_x", l.getX2());
            target.addAttribute("to_y", l.getY2());
            target.endTag("line");
        }
    }

    public List<Line2D> getLines() {
        return lines;
    }

    public void setLines(List<Line2D> lines) {
        this.lines = lines;
    }

    public void changeVariables(Object source, Map<String, Object> variables) {
    }

}