@Override
public void drawData(Canvas c) {
int width = (int) mViewPortHandler.getChartWidth();
int height = (int) mViewPortHandler.getChartHeight();
if (mDrawBitmap == null
|| (mDrawBitmap.getWidth() != width)
|| (mDrawBitmap.getHeight() != height)) {
if (width > 0 && height > 0) {
mDrawBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_4444);
mBitmapCanvas = new Canvas(mDrawBitmap);
} else return;
}
mDrawBitmap.eraseColor(Color.TRANSPARENT);
PieData pieData = mChart.getData();
for (PieDataSet set : pieData.getDataSets()) {
if (set.isVisible() && set.getEntryCount() > 0) drawDataSet(c, set);
}
}
@Override
public void drawValues(Canvas c) {
PointF center = mChart.getCenterCircleBox();
// get whole the radius
float r = mChart.getRadius();
float rotationAngle = mChart.getRotationAngle();
float[] drawAngles = mChart.getDrawAngles();
float[] absoluteAngles = mChart.getAbsoluteAngles();
float off = r / 10f * 3.6f;
if (mChart.isDrawHoleEnabled()) {
off = (r - (r / 100f * mChart.getHoleRadius())) / 2f;
}
r -= off; // offset to keep things inside the chart
PieData data = mChart.getData();
List<PieDataSet> dataSets = data.getDataSets();
boolean drawXVals = mChart.isDrawSliceTextEnabled();
int cnt = 0;
for (int i = 0; i < dataSets.size(); i++) {
PieDataSet dataSet = dataSets.get(i);
if (!dataSet.isDrawValuesEnabled() && !drawXVals) continue;
// apply the text-styling defined by the DataSet
applyValueTextStyle(dataSet);
float lineHeight = Utils.calcTextHeight(mValuePaint, "Q") + Utils.convertDpToPixel(4f);
List<Entry> entries = dataSet.getYVals();
for (int j = 0,
maxEntry =
Math.min((int) Math.ceil(entries.size() * mAnimator.getPhaseX()), entries.size());
j < maxEntry;
j++) {
Entry entry = entries.get(j);
// offset needed to center the drawn text in the slice
float offset = drawAngles[cnt] / 2;
// calculate the text position
float x =
(float)
(r
* Math.cos(
Math.toRadians(
(rotationAngle + absoluteAngles[cnt] - offset)
* mAnimator.getPhaseY()))
+ center.x);
float y =
(float)
(r
* Math.sin(
Math.toRadians(
(rotationAngle + absoluteAngles[cnt] - offset)
* mAnimator.getPhaseY()))
+ center.y);
float value =
mChart.isUsePercentValuesEnabled()
? entry.getVal() / data.getYValueSum() * 100f
: entry.getVal();
ValueFormatter formatter = dataSet.getValueFormatter();
boolean drawYVals = dataSet.isDrawValuesEnabled();
// draw everything, depending on settings
if (drawXVals && drawYVals) {
drawValue(c, formatter, value, entry, 0, x, y);
if (j < data.getXValCount())
c.drawText(data.getXVals().get(j), x, y + lineHeight, mValuePaint);
} else if (drawXVals && !drawYVals) {
if (j < data.getXValCount())
c.drawText(data.getXVals().get(j), x, y + lineHeight / 2f, mValuePaint);
} else if (!drawXVals && drawYVals) {
drawValue(c, formatter, value, entry, 0, x, y + lineHeight / 2f);
}
cnt++;
}
}
}