private void updateGraph(Cursor cursor) {
// set up the goal line
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
int goalCalories = Integer.parseInt(prefs.getString("preference_calorie_goal", "2000"));
List<PointValue> goalValues = new ArrayList<>();
// set up the data
List<PointValue> values = new ArrayList<>();
cursor.moveToFirst();
if (!cursor.isAfterLast()) {
goalValues.add(new PointValue(getTimeFromRow(cursor), goalCalories));
}
while (cursor.isAfterLast() == false) {
float value = cursor.getFloat(cursor.getColumnIndex("total"));
// Log.d("graph", "adding " + value + " on " + sdf.format(getTimeFromRow(cursor)));
values.add(new PointValue(getTimeFromRow(cursor), value));
cursor.moveToNext();
}
cursor.moveToLast();
goalValues.add(new PointValue(getTimeFromRow(cursor), goalCalories));
List<Line> lines = new ArrayList<Line>();
Line goalLine = new Line(goalValues).setColor(Color.parseColor("#ff0000"));
lines.add(goalLine);
Line line = new Line(values).setColor(Color.parseColor("#44a134")).setCubic(true);
// line.setFilled(true);
// line.setHasLabels(true);
lines.add(line);
LineChartData data = new LineChartData();
data.setLines(lines);
Axis timeAxis = new Axis();
// timeAxis.setName("");
// timeAxis.setTextColor(ChartUtils.COLOR_ORANGE);
timeAxis.setMaxLabelChars(5);
timeAxis.setFormatter(new TimestampAxisFormatter());
timeAxis.setHasLines(true);
timeAxis.setHasTiltedLabels(true);
data.setAxisXBottom(timeAxis);
Axis calorieAxis = new Axis();
// weightAxis.setName("");
// weightAxis.setTextColor(ChartUtils.COLOR_GREEN);
calorieAxis.setMaxLabelChars(7);
calorieAxis.setFormatter(new SimpleAxisValueFormatter().setAppendedText(" C".toCharArray()));
calorieAxis.setHasLines(true);
calorieAxis.setHasTiltedLabels(true);
data.setAxisYLeft(calorieAxis);
hellochart.setLineChartData(data);
hellochart.setZoomType(ZoomType.HORIZONTAL);
hellochart.setOnValueTouchListener(new ValueTouchListener());
// set up zoom so we can see 0 calories
Viewport viewport = new Viewport(hellochart.getMaximumViewport());
viewport.bottom = 0;
hellochart.setMaximumViewport(viewport);
hellochart.setCurrentViewport(viewport);
hellochart.invalidate();
}
private void setupCharts() {
bgGraphBuilder = new BgGraphBuilder(this);
updateStuff = false;
chart = (LineChartView) findViewById(R.id.chart);
if (BgGraphBuilder.isXLargeTablet(getApplicationContext())) {
ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams) chart.getLayoutParams();
params.topMargin = 130;
chart.setLayoutParams(params);
}
chart.setZoomType(ZoomType.HORIZONTAL);
// Transmitter Battery Level
final Sensor sensor = Sensor.currentSensor();
if (sensor != null
&& sensor.latest_battery_level != 0
&& sensor.latest_battery_level <= Constants.TRANSMITTER_BATTERY_LOW
&& !prefs.getBoolean("disable_battery_warning", false)) {
Drawable background =
new Drawable() {
@Override
public void draw(Canvas canvas) {
DisplayMetrics metrics = getApplicationContext().getResources().getDisplayMetrics();
int px = (int) (30 * (metrics.densityDpi / 160f));
Paint paint = new Paint();
paint.setTextSize(px);
paint.setAntiAlias(true);
paint.setColor(Color.parseColor("#FFFFAA"));
paint.setStyle(Paint.Style.STROKE);
paint.setAlpha(100);
canvas.drawText(
"transmitter battery", 10, chart.getHeight() / 3 - (int) (1.2 * px), paint);
if (sensor.latest_battery_level <= Constants.TRANSMITTER_BATTERY_EMPTY) {
paint.setTextSize((int) (px * 1.5));
canvas.drawText("VERY LOW", 10, chart.getHeight() / 3, paint);
} else {
canvas.drawText("low", 10, chart.getHeight() / 3, paint);
}
}
@Override
public void setAlpha(int alpha) {}
@Override
public void setColorFilter(ColorFilter cf) {}
@Override
public int getOpacity() {
return 0;
}
};
chart.setBackground(background);
}
previewChart = (PreviewLineChartView) findViewById(R.id.chart_preview);
previewChart.setZoomType(ZoomType.HORIZONTAL);
chart.setLineChartData(bgGraphBuilder.lineData());
chart.setOnValueTouchListener(bgGraphBuilder.getOnValueSelectTooltipListener());
previewChart.setLineChartData(bgGraphBuilder.previewLineData());
updateStuff = true;
previewChart.setViewportCalculationEnabled(true);
chart.setViewportCalculationEnabled(true);
previewChart.setViewportChangeListener(new ViewportListener());
chart.setViewportChangeListener(new ChartViewPortListener());
setViewport();
}