public BgGraphBuilder(Context context, long start, long end, int numValues) { end_time = end; start_time = start; bgReadings = BgReading.latestForGraph(numValues, start, end); calibrations = Calibration.latestForGraph(numValues, start, end); this.context = context; this.prefs = PreferenceManager.getDefaultSharedPreferences(context); this.highMark = Double.parseDouble(prefs.getString("highValue", "170")); this.lowMark = Double.parseDouble(prefs.getString("lowValue", "70")); this.doMgdl = (prefs.getString("units", "mgdl").equals("mgdl")); defaultMinY = unitized(40); defaultMaxY = unitized(250); pointSize = isXLargeTablet(context) ? 5 : 3; axisTextSize = isXLargeTablet(context) ? 20 : Axis.DEFAULT_TEXT_SIZE_SP; previewAxisTextSize = isXLargeTablet(context) ? 12 : 5; hoursPreviewStep = isXLargeTablet(context) ? 2 : 1; }