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/*
* Copyright (C) 2014 The Android Open Source Project
*
* 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 com.android.systemui.qs;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Paint.Style;
import android.graphics.Path;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.VectorDrawable;
import android.util.AttributeSet;
import android.widget.ImageView;
import com.android.systemui.R;
/** ImageView that performs runtime modification of vector drawables (using FilterCanvas). **/
public class QSImageView extends ImageView {
private final int mOutlineWidth;
private final int mColorEnabled;
private final int mColorDisabled;
private FilterCanvas mFilterCanvas;
private Canvas mCanvas;
private boolean mEnabledVersion = true;
private boolean mFilter;
public QSImageView(Context context) {
this(context, null);
}
public QSImageView(Context context, AttributeSet attrs) {
super(context, attrs);
final Resources res = context.getResources();
mOutlineWidth = res.getDimensionPixelSize(R.dimen.quick_settings_tile_icon_outline);
mColorEnabled = res.getColor(R.color.quick_settings_tile_icon_enabled);
mColorDisabled = res.getColor(R.color.quick_settings_tile_icon_disabled);
}
public void setEnabledVersion(boolean enabledVersion) {
mEnabledVersion = enabledVersion;
invalidate();
}
@Override
public void setImageDrawable(Drawable drawable) {
mFilter = drawable instanceof VectorDrawable;
super.setImageDrawable(drawable);
}
@Override
public void setImageResource(int resId) {
setImageDrawable(mContext.getDrawable(resId));
}
@Override
public void draw(Canvas canvas) {
if (mFilter) {
if (canvas != mCanvas) {
mCanvas = canvas;
mFilterCanvas = new QSFilterCanvas(canvas);
}
super.draw(mFilterCanvas);
} else {
super.draw(canvas);
}
}
private class QSFilterCanvas extends FilterCanvas {
public QSFilterCanvas(Canvas c) {
super(c);
}
@Override
public void drawPath(Path path, Paint paint) {
if (mEnabledVersion) {
paint.setColor(mColorEnabled);
} else {
paint.setStyle(Style.STROKE);
paint.setStrokeJoin(Paint.Join.ROUND);
paint.setColor(mColorDisabled);
paint.setStrokeWidth(mOutlineWidth);
}
super.drawPath(path, paint);
}
}
}
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