Examples with Bar com.db.chart.model.Bar used on opensource projects

Example 16 with Bar

use of com.db.chart.model.Bar in project WilliamChart by diogobernardino.

the class StackBarChartView method defineRegions.

@Override
void defineRegions(ArrayList<ArrayList<Region>> regions, ArrayList<ChartSet> data) {
    int dataSize = data.size();
    int setSize = data.get(0).size();
    float verticalOffset;
    float currBottomY;
    float negVerticalOffset;
    float negCurrBottomY;
    float y1;
    float barSize;
    BarSet barSet;
    Bar bar;
    float zeroPosition = this.getZeroPosition();
    for (int i = 0; i < setSize; i++) {
        // Vertical offset to keep drawing bars on top of the others
        verticalOffset = 0;
        negVerticalOffset = 0;
        // Bottom of the next bar to be drawn
        currBottomY = zeroPosition;
        negCurrBottomY = zeroPosition;
        for (int j = 0; j < dataSize; j++) {
            barSet = (BarSet) data.get(j);
            bar = (Bar) barSet.getEntry(i);
            barSize = Math.abs(zeroPosition - bar.getY());
            // Then no need to have region
            if (!barSet.isVisible())
                continue;
            if (bar.getValue() > 0) {
                y1 = zeroPosition - (barSize + verticalOffset);
                regions.get(j).get(i).set((int) (bar.getX() - barWidth / 2), (int) y1, (int) (bar.getX() + barWidth / 2), (int) currBottomY);
                currBottomY = y1;
                verticalOffset += barSize + 2;
            } else if (bar.getValue() < 0) {
                y1 = zeroPosition + (barSize - negVerticalOffset);
                regions.get(j).get(i).set((int) (bar.getX() - barWidth / 2), (int) negCurrBottomY, (int) (bar.getX() + barWidth / 2), (int) y1);
                negCurrBottomY = y1;
                negVerticalOffset -= barSize;
            } else {
                // If bar.getValue() == 0, force region to 1 pixel
                y1 = zeroPosition - (1 + verticalOffset);
                regions.get(j).get(i).set((int) (bar.getX() - barWidth / 2), (int) y1, (int) (bar.getX() + barWidth / 2), (int) currBottomY);
            }
        }
    }
}