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/*
* Copyright (C) 2011 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.test.tilebenchmark;
import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.GestureDetector.SimpleOnGestureListener;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
import android.widget.TextView;
import android.widget.Toast;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
/**
* Interface for playing back WebView tile rendering status. Draws viewport and
* states of tiles and statistics for off-line analysis.
*/
public class PlaybackActivity extends Activity {
private static final float SCROLL_SCALER = 0.125f;
PlaybackView mPlaybackView;
SeekBar mSeekBar;
Button mForward;
Button mBackward;
TextView mFrameDisplay;
private int mFrame = -1;
private int mFrameMax;
private class TouchFrameChangeListener extends SimpleOnGestureListener {
float mDist = 0;
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2,
float distanceX, float distanceY) {
// aggregate scrolls so that small ones can add up
mDist += distanceY * SCROLL_SCALER;
int intComponent = (int) Math.floor(Math.abs(mDist));
if (intComponent >= 1) {
int scrollDist = (mDist > 0) ? intComponent : -intComponent;
setFrame(null, mFrame + scrollDist);
mDist -= scrollDist;
}
return super.onScroll(e1, e2, distanceX, distanceY);
}
};
private class SeekFrameChangeListener implements OnSeekBarChangeListener {
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
setFrame(seekBar, progress);
}
};
private class LoadFileTask extends AsyncTask<String, Void, RunData> {
@Override
protected RunData doInBackground(String... params) {
RunData data = null;
try {
FileInputStream fis = openFileInput(params[0]);
ObjectInputStream in = new ObjectInputStream(fis);
data = (RunData) in.readObject();
in.close();
} catch (IOException ex) {
ex.printStackTrace();
} catch (ClassNotFoundException ex) {
ex.printStackTrace();
}
return data;
}
@Override
protected void onPostExecute(RunData data) {
if (data == null) {
Toast.makeText(getApplicationContext(),
getResources().getString(R.string.error_no_data),
Toast.LENGTH_LONG).show();
return;
}
mPlaybackView.setData(data);
mFrameMax = data.frames.length - 1;
mSeekBar.setMax(mFrameMax);
setFrame(null, 0);
}
}
private void setFrame(View changer, int f) {
if (f < 0) {
f = 0;
} else if (f > mFrameMax) {
f = mFrameMax;
}
if (mFrame == f) {
return;
}
mFrame = f;
mForward.setEnabled(mFrame != mFrameMax);
mBackward.setEnabled(mFrame != 0);
if (changer != mSeekBar) {
mSeekBar.setProgress(mFrame);
}
mFrameDisplay.setText(Integer.toString(mFrame));
mPlaybackView.setFrame(mFrame);
};
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.playback);
mPlaybackView = (PlaybackView) findViewById(R.id.playback);
mSeekBar = (SeekBar) findViewById(R.id.seek_bar);
mForward = (Button) findViewById(R.id.forward);
mBackward = (Button) findViewById(R.id.backward);
mFrameDisplay = (TextView) findViewById(R.id.frame_display);
mForward.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
setFrame(v, mFrame + 1);
}
});
mBackward.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
setFrame(v, mFrame - 1);
}
});
mSeekBar.setOnSeekBarChangeListener(new SeekFrameChangeListener());
mPlaybackView.setOnGestureListener(new TouchFrameChangeListener());
new LoadFileTask().execute(ProfileActivity.TEMP_FILENAME);
}
}
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