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/*
* Copyright (C) 2010 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.launcher2;
import android.content.Context;
import android.graphics.Bitmap;
import android.util.AttributeSet;
import android.widget.TextView;
/**
* An icon on a PagedView, specifically for items in the launcher's paged view (with compound
* drawables on the top).
*/
public class PagedViewIcon extends TextView {
/** A simple callback interface to allow a PagedViewIcon to notify when it has been pressed */
public static interface PressedCallback {
void iconPressed(PagedViewIcon icon);
}
@SuppressWarnings("unused")
private static final String TAG = "PagedViewIcon";
private static final float PRESS_ALPHA = 0.4f;
private PagedViewIcon.PressedCallback mPressedCallback;
private boolean mLockDrawableState = false;
private Bitmap mIcon;
public PagedViewIcon(Context context) {
this(context, null);
}
public PagedViewIcon(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public PagedViewIcon(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public void applyFromApplicationInfo(ApplicationInfo info, boolean scaleUp,
PagedViewIcon.PressedCallback cb) {
mIcon = info.iconBitmap;
mPressedCallback = cb;
setCompoundDrawablesWithIntrinsicBounds(null, new FastBitmapDrawable(mIcon), null, null);
setText(info.title);
setTag(info);
}
public void lockDrawableState() {
mLockDrawableState = true;
}
public void resetDrawableState() {
mLockDrawableState = false;
post(new Runnable() {
@Override
public void run() {
refreshDrawableState();
}
});
}
protected void drawableStateChanged() {
super.drawableStateChanged();
// We keep in the pressed state until resetDrawableState() is called to reset the press
// feedback
if (isPressed()) {
setAlpha(PRESS_ALPHA);
if (mPressedCallback != null) {
mPressedCallback.iconPressed(this);
}
} else if (!mLockDrawableState) {
setAlpha(1f);
}
}
}
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