Center temp label in yAxis

components/chart/tick.js

@@ -8,13 +8,15 @@ import { Sizes } from '../../styles'
 import { CHART_TICK_WIDTH } from '../../config'
 
 const Tick = ({ yPosition, height, isBold, shouldShowLabel, label }) => {
-  const top = yPosition - height / 2
+  const top = yPosition - height / 2 - 4
   const containerStyle = [styles.container, { flexBasis: height, height, top }]
   const textStyle = isBold ? styles.textBold : styles.textNormal
 
+  if (!shouldShowLabel) return null
+
   return (
     <View style={containerStyle}>
-      <AppText style={textStyle}>{shouldShowLabel && label}</AppText>
+      <AppText style={textStyle}>{label}</AppText>
     </View>
   )
 }
@@ -36,6 +38,7 @@ const styles = StyleSheet.create({
     position: 'absolute',
     right: 0,
     width: CHART_TICK_WIDTH,
+    minHeight: Sizes.base + 2,
   },
   textBold: {
     fontSize: Sizes.base,

components/helpers/chart.js

@@ -3,6 +3,7 @@ import { LocalDate } from '@js-joda/core'
 import { scaleObservable, unitObservable } from '../../local-storage'
 import { getCycleStatusForDay } from '../../lib/sympto-adapter'
 import { getCycleDay, getAmountOfCycleDays } from '../../db'
+import { Sizes } from '../../styles'
 
 //YAxis helpers
 
@@ -50,14 +51,18 @@ export function getTickList(columnHeight) {
     const label = tick.toFixed(1)
     let shouldShowLabel
 
-    // when temp range <= 2, units === 0.1 we show temp values with step 0.2
+    // when units === 0.1 and tick height is big enough, we show temp values with step 0.2
-    // when temp range > 2, units === 0.5 we show temp values with step 0.5
+    // when units === 0.5 and tick height is not big enough, we show temp values with step 1
+    // otherwise we show temp values with step 0.5
 
-    if (unit === 0.1) {
+    switch (true) {
-      // show label with step 0.2
+      case unit === 0.1 && tickHeight > Sizes.base + 2:
         shouldShowLabel = !((label * 10) % 2)
-    } else {
+        break
-      // show label with step 0.5
+      case unit === 0.5 && tickHeight <= Sizes.base + 2:
+        shouldShowLabel = !((label * 10) % 10)
+        break
+      default:
         shouldShowLabel = !((label * 10) % 5)
     }
 

local-storage.js

@@ -12,9 +12,15 @@ export const unitObservable = Observable()
 unitObservable.set(TEMP_SCALE_UNITS)
 scaleObservable((scale) => {
   const scaleRange = scale.max - scale.min
-  if (scaleRange <= 1.5) {
+
+  switch (true) {
+    case scaleRange <= 1:
       unitObservable.set(0.1)
-  } else {
+      break
+    case scaleRange > 1 && scaleRange <= 2:
+      unitObservable.set(0.2)
+      break
+    default:
       unitObservable.set(0.5)
   }
 })