@Override
protected synchronized void onSizeChanged(int w, int h, int oldw, int oldh) {
// update pixel conversion values
PixelUtils.init(getContext());
// disable hardware acceleration if it's not explicitly supported
// by the current Plot implementation. this check only applies to
// honeycomb and later environments.
if (Build.VERSION.SDK_INT >= 11) {
if (!isHwAccelerationSupported() && isHardwareAccelerated()) {
setLayerType(View.LAYER_TYPE_SOFTWARE, null);
}
}
// pingPong is only used in background rendering mode.
if (renderMode == RenderMode.USE_BACKGROUND_THREAD) {
pingPong.resize(h, w);
}
RectF cRect = new RectF(0, 0, w, h);
RectF mRect = boxModel.getMarginatedRect(cRect);
RectF pRect = boxModel.getPaddedRect(mRect);
layout(new DisplayDimensions(cRect, mRect, pRect));
super.onSizeChanged(w, h, oldw, oldh);
if (renderThread != null && !renderThread.isAlive()) {
renderThread.start();
}
}
/**
* Called whenever the plot needs to be drawn via the Handler, which invokes invalidate(). Should
* never be called directly; use {@link #redraw()} instead.
*
* @param canvas
*/
@Override
protected void onDraw(Canvas canvas) {
if (renderMode == RenderMode.USE_BACKGROUND_THREAD) {
synchronized (pingPong) {
Bitmap bmp = pingPong.getBitmap();
if (bmp != null) {
canvas.drawBitmap(bmp, 0, 0, null);
}
}
} else if (renderMode == RenderMode.USE_MAIN_THREAD) {
renderOnCanvas(canvas);
} else {
throw new IllegalArgumentException("Unsupported Render Mode: " + renderMode);
}
}