/**
* Saves an Array of Entries to the specified location on the sdcard
*
* @param ds
* @param path
*/
public static void saveToSdCard(ArrayList<Entry> entries, String path) {
File sdcard = Environment.getExternalStorageDirectory();
File saved = new File(sdcard, path);
if (!saved.exists()) {
try {
saved.createNewFile();
} catch (IOException e) {
Log.e(LOG, e.toString());
}
}
try {
// BufferedWriter for performance, true to set append to file flag
BufferedWriter buf = new BufferedWriter(new FileWriter(saved, true));
for (Entry e : entries) {
buf.append(e.getVal() + "#" + e.getXIndex());
buf.newLine();
}
buf.close();
} catch (IOException e) {
Log.e(LOG, e.toString());
}
}
/**
* Adds an Entry to the DataSet at the specified index. Entries are added to the end of the list.
*
* @param e
* @param dataSetIndex
*/
public void addEntry(Entry e, int dataSetIndex) {
float val = e.getVal();
mYValCount += 1;
mYValueSum += val;
if (mYMax < val) mYMax = val;
if (mYMin > val) mYMin = val;
if (mDataSets == null) mDataSets = new ArrayList<T>();
if (mDataSets.size() > dataSetIndex) {
T set = mDataSets.get(dataSetIndex);
if (set != null) {
// add the entry to the dataset
set.addEntry(e);
}
} else {
Log.e("addEntry", "Cannot add Entry because dataSetIndex too high.");
}
}
/**
* Adds an Entry to the DataSet at the specified index. Entries are added to the end of the list.
*
* @param e
* @param dataSetIndex
*/
public void addEntry(Entry e, int dataSetIndex) {
if (mDataSets.size() > dataSetIndex && dataSetIndex >= 0) {
IDataSet set = mDataSets.get(dataSetIndex);
// add the entry to the dataset
if (!set.addEntry(e)) return;
float val = e.getVal();
if (mYValCount == 0) {
mYMin = val;
mYMax = val;
if (set.getAxisDependency() == AxisDependency.LEFT) {
mLeftAxisMax = e.getVal();
mLeftAxisMin = e.getVal();
} else {
mRightAxisMax = e.getVal();
mRightAxisMin = e.getVal();
}
} else {
if (mYMax < val) mYMax = val;
if (mYMin > val) mYMin = val;
if (set.getAxisDependency() == AxisDependency.LEFT) {
if (mLeftAxisMax < e.getVal()) mLeftAxisMax = e.getVal();
if (mLeftAxisMin > e.getVal()) mLeftAxisMin = e.getVal();
} else {
if (mRightAxisMax < e.getVal()) mRightAxisMax = e.getVal();
if (mRightAxisMin > e.getVal()) mRightAxisMin = e.getVal();
}
}
mYValCount += 1;
handleEmptyAxis(getFirstLeft(), getFirstRight());
} else {
Log.e("addEntry", "Cannot add Entry because dataSetIndex too high or too low.");
}
}
/**
* Removes the given Entry object from the DataSet at the specified index.
*
* @param e
* @param dataSetIndex
*/
public boolean removeEntry(Entry e, int dataSetIndex) {
// entry null, outofbounds
if (e == null || dataSetIndex >= mDataSets.size()) return false;
// remove the entry from the dataset
boolean removed = mDataSets.get(dataSetIndex).removeEntry(e.getXIndex());
if (removed) {
float val = e.getVal();
mYValCount -= 1;
mYValueSum -= val;
calcMinMax(mDataSets);
}
return removed;
}