/**
* Copyright 2011 The ForPlay 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 forplay.android;
import forplay.core.Asserts;
import static forplay.core.ForPlay.graphics;
import forplay.core.CanvasSurface;
import forplay.core.Surface;
import forplay.core.SurfaceLayer;
class AndroidSurfaceLayer extends AndroidLayer implements SurfaceLayer {
private AndroidImage img;
private Surface surface;
AndroidSurfaceLayer(int width, int height) {
img = (AndroidImage) graphics().createImage(width, height);
surface = new CanvasSurface(img.canvas());
}
@Override
public void destroy() {
super.destroy();
surface = null;
img = null;
}
@Override
public Surface surface() {
return surface;
}
@Override
void paint(AndroidCanvas canvas) {
if (!visible()) return;
canvas.save();
transform(canvas);
canvas.setAlpha(canvas.alpha() * alpha);
canvas.drawImage(img, 0, 0);
canvas.restore();
}
@Override
public float width() {
Asserts.checkNotNull(surface, "Surface must not be null");
return surface.width();
}
@Override
public float height() {
Asserts.checkNotNull(surface, "Surface must not be null");
return surface.height();
}
@Override
public float scaledWidth() {
return transform().scaleX() * width();
}
@Override
public float scaledHeight() {
return transform().scaleY() * height();
}
}