@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
drawChart(canvas);
drawAxis(canvas);
if (touchedBarIndex != INVALID_BAR_INDEX) {
Bar bar = barList.get(touchedBarIndex);
mPaint.setColor(Color.BLUE);
bar.drawSelf(canvas, mPaint);
textPaint.setTextSize(detailText1Size);
float text1Length = textPaint.measureText(bar.yValue) + detailText1Size;
textPaint.setTextSize(detailText2Size);
float text2Length = textPaint.measureText(bar.xValue) + detailText2Size;
int detailWidth = (int) (Math.max(text1Length, text2Length) * 1.5f);
int detailHeight = (int) (1.2f * (detailText1Size + detailText2Size));
float start_x = (bar.middle - 0.5f * detailWidth);
float end_x = start_x + detailWidth;
float start_y = 0;
float end_y = 0;
if (bar.withdrawal >= 0) {
start_y = bar.top - detailHeight;
end_y = bar.top;
} else {
start_y = bar.bottom;
end_y = bar.bottom + detailHeight;
}
detailedRect.set(start_x, start_y, end_x, end_y);
mPaint.setColor(HALF_TRANSPARENT_BLUE);
canvas.drawRoundRect(detailedRect, detailRoundR, detailRoundR, mPaint);
textPaint.setColor(Color.WHITE);
textPaint.setTextAlign(Paint.Align.CENTER);
textPaint.setTextSize(detailText1Size);
float text1Y = start_y + 1f * detailText1Size;
canvas.drawText(bar.yValue, bar.middle, text1Y, textPaint);
textPaint.setTextSize(detailText2Size);
float text2Y = end_y - 0.5f * detailText2Size;
canvas.drawText(bar.xValue, bar.middle, text2Y, textPaint);
}
}
