Color days on HistoryChart according to target

app/src/main/java/org/isoron/uhabits/activities/common/views/HistoryChart.java

@@ -38,6 +38,8 @@ public class HistoryChart extends ScrollableChart
 {
     private int[] checkmarks;
 
+    private int target;
+
     private Paint pSquareBg, pSquareFg, pTextHeader;
 
     private float squareSpacing;
@@ -85,6 +87,8 @@ public class HistoryChart extends ScrollableChart
 
     private float headerOverflow = 0;
 
+    private boolean isNumerical = false;
+
     @NonNull
     private Controller controller;
 
@@ -168,6 +172,11 @@ public class HistoryChart extends ScrollableChart
         this.controller = controller;
     }
 
+    public void setNumerical(boolean numerical)
+    {
+        isNumerical = numerical;
+    }
+
     public void setIsBackgroundTransparent(boolean isBackgroundTransparent)
     {
         this.isBackgroundTransparent = isBackgroundTransparent;
@@ -179,6 +188,12 @@ public class HistoryChart extends ScrollableChart
         this.isEditable = isEditable;
     }
 
+    public void setTarget(int target)
+    {
+        this.target = target;
+        postInvalidate();
+    }
+
     protected void initPaints()
     {
         pTextHeader = new Paint();
@@ -326,7 +341,12 @@ public class HistoryChart extends ScrollableChart
         else
         {
             int checkmark = checkmarks[checkmarkOffset];
-            pSquareBg.setColor(colors[Math.min(2, checkmark)]);
+            if(checkmark == 0) pSquareBg.setColor(colors[0]);
+            else if(checkmark < target)
+            {
+                pSquareBg.setColor(isNumerical ? textColor : colors[1]);
+            }
+            else pSquareBg.setColor(colors[2]);
         }
 
         pSquareFg.setColor(reverseTextColor);
@@ -351,6 +371,7 @@ public class HistoryChart extends ScrollableChart
         isEditable = false;
         checkmarks = new int[0];
         controller = new Controller() {};
+        target = 2;
 
         initColors();
         initPaints();

app/src/main/java/org/isoron/uhabits/activities/habits/show/views/HistoryCard.java

@@ -126,6 +126,11 @@ public class HistoryCard extends HabitCard
             int color = ColorUtils.getColor(getContext(), habit.getColor());
             title.setTextColor(color);
             chart.setColor(color);
+            if(habit.isNumerical())
+            {
+                chart.setTarget((int) (habit.getTargetValue() * 1000));
+                chart.setNumerical(true);
+            }
         }
     }
 }