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package com.android.camera.ui;
import android.graphics.Bitmap;
import android.graphics.Rect;
import java.util.ArrayList;
import javax.microedition.khronos.opengles.GL11;
public class StateListTexture extends FrameTexture {
private int mIndex;
private final ArrayList<Entry> mEntries = new ArrayList<Entry>();
private static class Entry {
public int mMustHave;
public int mMustNotHave;
public FrameTexture mTexture;
public Entry(int mustHave, int mustNotHave, FrameTexture texture) {
mMustHave = mustHave;
mMustNotHave = mustNotHave;
mTexture = texture;
}
}
@Override
protected void freeBitmap(Bitmap bitmap) {
mEntries.get(mIndex).mTexture.freeBitmap(bitmap);
}
@Override
protected Bitmap getBitmap() {
return mEntries.get(mIndex).mTexture.getBitmap();
}
private int getStateIndex(int state) {
for (int i = 0, n = mEntries.size(); i < n; ++i) {
Entry entry = mEntries.get(i);
if ((entry.mMustHave & state) == entry.mMustHave
&& (state & entry.mMustNotHave) == 0) return i;
}
return -1;
}
@Override
public void setSize(int width, int height) {
super.setSize(width, height);
for (Entry entry : mEntries) {
entry.mTexture.setSize(width, height);
}
}
public boolean isDifferent(int stateA, int stateB) {
return getStateIndex(stateA) != getStateIndex(stateB);
}
public boolean setState(int state) {
int oldIndex = mIndex;
mIndex = getStateIndex(state);
return mIndex != oldIndex;
}
@Override
public boolean bind(GLRootView root, GL11 gl) {
if (mIndex < 0) return false;
return mEntries.get(mIndex).mTexture.bind(root, gl);
}
public void addState(
int mustHave, int mustNotHave, FrameTexture texture) {
mEntries.add(new Entry(mustHave, mustNotHave, texture));
}
@Override
public Rect getPaddings() {
return mEntries.get(mIndex).mTexture.getPaddings();
}
}
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