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The PlayN HTML (GWT) backend

There is a newer version: 2.0.8

/**
 * Copyright 2010 The PlayN Authors
 *
 * 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 playn.html;

import com.google.gwt.canvas.dom.client.CanvasPattern;
import com.google.gwt.canvas.dom.client.Context2d;
import com.google.gwt.dom.client.ImageElement;

import playn.core.Pattern;

class HtmlPattern extends Pattern {

  private final ImageElement patimg;
  private CanvasPattern pattern;

  HtmlPattern(ImageElement patimg, boolean repeatX, boolean repeatY) {
    super(repeatX, repeatY);
    this.patimg = patimg;
  }

  public CanvasPattern pattern (Context2d ctx) {
    if (pattern == null) {
      Context2d.Repetition repeat;
      if (repeatX) {
        if (repeatY) repeat = Context2d.Repetition.REPEAT;
        else repeat = Context2d.Repetition.REPEAT_X;
      } else if (repeatY) {
        repeat = Context2d.Repetition.REPEAT_Y;
      } else {
        repeat = null;
      }
      pattern = ctx.createPattern(patimg, repeat);
    }
    return pattern;
  }
}