EN: Hide legend if no data is to be displayed

play-services-nearby-core-ui/src/main/kotlin/org/microg/gms/nearby/core/ui/DotChartView.kt

@@ -181,13 +181,15 @@ class DotChartView : View {
         fontPaint.getTextBounds(strNoRecords, 0, strNoRecords.length, fontTempRect)
         canvas.drawText(strNoRecords, (subLeft + perWidth + 4 * d).toFloat(), (subTop + perHeight / 2.0 + fontTempRect.height() / 2.0).toFloat(), fontPaint)
 
-        canvas.drawMyRect((subLeft + (perWidth + innerPadding) * 1 + 12 * d + fontTempRect.width()).toFloat(), subTop.toFloat(), perWidth.toFloat(), perHeight.toFloat(), accentColor and 0xffffff)
-        canvas.drawMyRect((subLeft + (perWidth + innerPadding) * 2 + 12 * d + fontTempRect.width()).toFloat(), subTop.toFloat(), perWidth.toFloat(), perHeight.toFloat(), accentColor and (80 shl 24 or 0xffffff))
-        canvas.drawMyRect((subLeft + (perWidth + innerPadding) * 3 + 12 * d + fontTempRect.width()).toFloat(), subTop.toFloat(), perWidth.toFloat(), perHeight.toFloat(), accentColor and (170 shl 24 or 0xffffff))
-        canvas.drawMyRect((subLeft + (perWidth + innerPadding) * 4 + 12 * d + fontTempRect.width()).toFloat(), subTop.toFloat(), perWidth.toFloat(), perHeight.toFloat(), accentColor)
+        if (maxValue >= 0) {
+            canvas.drawMyRect((subLeft + (perWidth + innerPadding) * 1 + 12 * d + fontTempRect.width()).toFloat(), subTop.toFloat(), perWidth.toFloat(), perHeight.toFloat(), accentColor and 0xffffff)
+            canvas.drawMyRect((subLeft + (perWidth + innerPadding) * 2 + 12 * d + fontTempRect.width()).toFloat(), subTop.toFloat(), perWidth.toFloat(), perHeight.toFloat(), accentColor and (80 shl 24 or 0xffffff))
+            canvas.drawMyRect((subLeft + (perWidth + innerPadding) * 3 + 12 * d + fontTempRect.width()).toFloat(), subTop.toFloat(), perWidth.toFloat(), perHeight.toFloat(), accentColor and (170 shl 24 or 0xffffff))
+            canvas.drawMyRect((subLeft + (perWidth + innerPadding) * 4 + 12 * d + fontTempRect.width()).toFloat(), subTop.toFloat(), perWidth.toFloat(), perHeight.toFloat(), accentColor)
 
-        val strRecords = context.getString(R.string.pref_exposure_rpis_histogram_legend_records, "0 - $maxValue")
-        canvas.drawText(strRecords, (subLeft + (perWidth + innerPadding) * 4 + 16 * d + fontTempRect.width() + perWidth).toFloat(), (subTop + perHeight / 2.0 + fontTempRect.height() / 2.0).toFloat(), fontPaint)
+            val strRecords = context.getString(R.string.pref_exposure_rpis_histogram_legend_records, "0 - $maxValue")
+            canvas.drawText(strRecords, (subLeft + (perWidth + innerPadding) * 4 + 16 * d + fontTempRect.width() + perWidth).toFloat(), (subTop + perHeight / 2.0 + fontTempRect.height() / 2.0).toFloat(), fontPaint)
+        }
 
         if (focusHour != -1 && Build.VERSION.SDK_INT >= 23) {
             val floatingColor = context.resolveColor(androidx.appcompat.R.attr.colorBackgroundFloating) ?: 0