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

Example 6 with Bar

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

the class AxisRendererTest method findBorders_MaxMinEqual_MaxPlusStep.

@Test
public void findBorders_MaxMinEqual_MaxPlusStep() {
    BarSet set = new BarSet();
    for (int i = 0; i < 2; i++) set.addBar(new Bar(Integer.toString(i), (float) 0));
    mData = new ArrayList<>();
    mData.add(set);
    assertArrayEquals(new int[] { 0, 9 }, mXRndr.findBorders(mData, 9));
}

Example 7 with Bar

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

the class BarChartView method defineRegions.

/**
	 * (Optional) To be overridden in order for each chart to define its own clickable regions.
	 * This way, classes extending ChartView will only define their clickable regions.
	 * <p>
	 * Important: the returned vector must match the order of the data passed
	 * by the user. This ensures that onTouchEvent will return the correct index.
	 *
	 * @param data {@link java.util.ArrayList} of {@link com.db.chart.model.ChartSet}
	 * to use while defining each region of a {@link com.db.chart.view.BarChartView}
	 *
	 * @return {@link java.util.ArrayList} of {@link android.graphics.Region} with regions
	 * where click will be detected
	 */
@Override
void defineRegions(ArrayList<ArrayList<Region>> regions, ArrayList<ChartSet> data) {
    final int nSets = data.size();
    final int nEntries = data.get(0).size();
    float offset;
    BarSet barSet;
    Bar bar;
    for (int i = 0; i < nEntries; i++) {
        // Set first offset to draw a group of bars
        offset = data.get(0).getEntry(i).getX() - drawingOffset;
        for (int j = 0; j < nSets; j++) {
            barSet = (BarSet) data.get(j);
            bar = (Bar) barSet.getEntry(i);
            if (bar.getValue() > 0)
                regions.get(j).get(i).set((int) offset, (int) bar.getY(), (int) (offset += barWidth), (int) this.getZeroPosition());
            else if (bar.getValue() < 0)
                regions.get(j).get(i).set((int) offset, (int) this.getZeroPosition(), (int) (offset += barWidth), (int) bar.getY());
            else
                regions.get(j).get(i).set((int) offset, (int) this.getZeroPosition(), (int) (offset += barWidth), (int) this.getZeroPosition() + 1);
            // If last bar of group no set spacing is necessary
            if (j != nSets - 1)
                offset += style.setSpacing;
        }
    }
}

Example 8 with Bar

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

the class BarChartView method onDrawChart.

/**
	 * Method responsible to draw bars with the parsed screen points.
	 *
	 * @param canvas The canvas to draw on
	 * @param data {@link java.util.ArrayList} of {@link com.db.chart.model.ChartSet} to use
	 */
@Override
public void onDrawChart(Canvas canvas, ArrayList<ChartSet> data) {
    final int nSets = data.size();
    final int nEntries = data.get(0).size();
    float offset;
    BarSet barSet;
    Bar bar;
    for (int i = 0; i < nEntries; i++) {
        // Set first offset to draw a group of bars
        offset = data.get(0).getEntry(i).getX() - drawingOffset;
        for (int j = 0; j < nSets; j++) {
            barSet = (BarSet) data.get(j);
            bar = (Bar) barSet.getEntry(i);
            // If entry value is 0 it won't be drawn
            if (!barSet.isVisible())
                continue;
            // Style it!
            if (!bar.hasGradientColor())
                style.barPaint.setColor(bar.getColor());
            else
                style.barPaint.setShader(new LinearGradient(bar.getX(), this.getZeroPosition(), bar.getX(), bar.getY(), bar.getGradientColors(), bar.getGradientPositions(), Shader.TileMode.MIRROR));
            applyShadow(style.barPaint, barSet.getAlpha(), bar.getShadowDx(), bar.getShadowDy(), bar.getShadowRadius(), bar.getShadowColor());
            // Draw background
            if (style.hasBarBackground) {
                drawBarBackground(canvas, offset, this.getInnerChartTop(), offset + barWidth, this.getInnerChartBottom());
            }
            // Draw bar
            if (// Positive
            bar.getValue() >= 0)
                drawBar(canvas, offset, bar.getY(), offset + barWidth, this.getZeroPosition());
            else
                // Negative
                drawBar(canvas, offset, this.getZeroPosition(), offset + barWidth, bar.getY());
            offset += barWidth;
            // If last bar of group no set spacing is necessary
            if (j != nSets - 1)
                offset += style.setSpacing;
        }
    }
}

Example 9 with Bar

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

the class StackBarChartView method defineRegions.

/**
	 * (Optional) To be overridden in order for each chart to define its own clickable regions.
	 * This way, classes extending ChartView will only define their clickable regions.
	 * <p>
	 * Important: the returned vector must match the order of the data passed
	 * by the user. This ensures that onTouchEvent will return the correct index.
	 *
	 * @param data {@link java.util.ArrayList} of {@link com.db.chart.model.ChartSet}
	 * to use while defining each region of a {@link com.db.chart.view.BarChartView}
	 *
	 * @return {@link java.util.ArrayList} of {@link android.graphics.Region} with regions
	 * where click will be detected
	 */
@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);
            }
        }
    }
}

Example 10 with Bar

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

the class AxisRendererTest method setUp.

@Before
public void setUp() {
    mXRndr = new XRenderer();
    BarSet set = new BarSet();
    for (int i = 0; i < 2; i++) set.addBar(new Bar(Integer.toString(i), (float) i));
    mData = new ArrayList<>();
    mData.add(set);
}