/*******************************************************************************
* Copyright 2012 Steven Rudenko
*
* 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 shared.ui.actionscontentview;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.view.animation.Animation;
import android.widget.FrameLayout;
class ActionsLayout extends FrameLayout implements BaseLayout {
private final EffectsController mEffectsController = new EffectsController();
private final Paint mFadePaint = new Paint();
private int mFadeFactor = 0;
public ActionsLayout(Context context) {
this(context, null);
}
public ActionsLayout(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public ActionsLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
@Override
public void setEffects(Animation effects) {
mEffectsController.setEffects(effects);
}
@Override
public Animation getEffects() {
return mEffectsController.getEffects();
}
@Override
public void onScroll(float factor, int fadeFactor) {
mFadeFactor = fadeFactor;
if (mEffectsController.apply(factor) || mFadeFactor > 0)
invalidate();
}
@Override
protected void dispatchDraw(Canvas canvas) {
final int saveCount = canvas.save();
canvas.concat(mEffectsController.getEffectsMatrix());
canvas.saveLayerAlpha(0, 0, canvas.getWidth(), canvas.getHeight(), (int)(255 * mEffectsController.getEffectsAlpha()), Canvas.HAS_ALPHA_LAYER_SAVE_FLAG);
super.dispatchDraw(canvas);
if (mFadeFactor > 0) {
mFadePaint.setColor(Color.argb(mFadeFactor, 0, 0, 0));
canvas.drawRect(0, 0, getWidth(), getHeight(), mFadePaint);
}
canvas.restoreToCount(saveCount);
}
}