Increase width of chart labels as needed

app/src/main/java/org/isoron/uhabits/views/HabitFrequencyView.java

@@ -51,7 +51,7 @@ public class HabitFrequencyView extends ScrollableDataView implements HabitDataV
     private int baseSize;
     private int paddingTop;
 
-    private int columnWidth;
+    private float columnWidth;
     private int columnHeight;
     private int nColumns;
 
@@ -154,16 +154,33 @@ public class HabitFrequencyView extends ScrollableDataView implements HabitDataV
         baseSize = height / 8;
         setScrollerBucketSize(baseSize);
 
-        columnWidth = baseSize;
-        columnHeight = 8 * baseSize;
-        nColumns = width / baseSize;
-        paddingTop = 0;
-
         pText.setTextSize(baseSize * 0.4f);
         pGraph.setTextSize(baseSize * 0.4f);
         pGraph.setStrokeWidth(baseSize * 0.1f);
         pGrid.setStrokeWidth(baseSize * 0.05f);
         em = pText.getFontSpacing();
+
+        columnWidth = baseSize;
+        columnWidth = Math.max(columnWidth, getMaxMonthWidth() * 1.2f);
+
+        columnHeight = 8 * baseSize;
+        nColumns = (int) (width / columnWidth);
+        paddingTop = 0;
+    }
+
+    private float getMaxMonthWidth()
+    {
+        float maxMonthWidth = 0;
+        GregorianCalendar day = DateHelper.getStartOfTodayCalendar();
+
+        for(int i = 0; i < 12; i++)
+        {
+            day.set(Calendar.MONTH, i);
+            float monthWidth = pText.measureText(dfMonth.format(day.getTime()));
+            maxMonthWidth = Math.max(maxMonthWidth, monthWidth);
+        }
+
+        return maxMonthWidth;
     }
 
     public void refreshData()
@@ -233,7 +250,7 @@ public class HabitFrequencyView extends ScrollableDataView implements HabitDataV
         for (int i = 0; i < 7; i++)
         {
             rect.set(0, 0, baseSize, baseSize);
-            rect.offset(prevRect.left, prevRect.top + columnWidth * i);
+            rect.offset(prevRect.left, prevRect.top + baseSize * i);
 
             if(values != null)
                 drawMarker(canvas, rect, values[i]);

app/src/main/java/org/isoron/uhabits/views/HabitScoreView.java

@@ -60,7 +60,7 @@ public class HabitScoreView extends ScrollableDataView implements HabitDataView
     private int baseSize;
     private int paddingTop;
 
-    private int columnWidth;
+    private float columnWidth;
     private int columnHeight;
     private int nColumns;
 
@@ -164,8 +164,11 @@ public class HabitScoreView extends ScrollableDataView implements HabitDataView
         setScrollerBucketSize(baseSize);
 
         columnWidth = baseSize;
+        columnWidth = Math.max(columnWidth, getMaxDayWidth() * 1.5f);
+        columnWidth = Math.max(columnWidth, getMaxMonthWidth() * 1.2f);
+
         columnHeight = 8 * baseSize;
-        nColumns = width / baseSize;
+        nColumns = (int) (width / columnWidth);
 
         pGraph.setTextSize(baseSize * 0.5f);
         pGraph.setStrokeWidth(baseSize * 0.1f);
@@ -341,15 +344,15 @@ public class HabitScoreView extends ScrollableDataView implements HabitDataView
 
     private void drawMarker(Canvas canvas, RectF rect)
     {
-        rect.inset(columnWidth * 0.15f, columnWidth * 0.15f);
+        rect.inset(baseSize * 0.15f, baseSize * 0.15f);
         setModeOrColor(pGraph, XFERMODE_CLEAR, Color.WHITE);
         canvas.drawOval(rect, pGraph);
 
-        rect.inset(columnWidth * 0.1f, columnWidth * 0.1f);
+        rect.inset(baseSize * 0.1f, baseSize * 0.1f);
         setModeOrColor(pGraph, XFERMODE_SRC, primaryColor);
         canvas.drawOval(rect, pGraph);
 
-        rect.inset(columnWidth * 0.1f, columnWidth * 0.1f);
+        rect.inset(baseSize * 0.1f, baseSize * 0.1f);
         setModeOrColor(pGraph, XFERMODE_CLEAR, Color.WHITE);
         canvas.drawOval(rect, pGraph);
 
@@ -370,4 +373,34 @@ public class HabitScoreView extends ScrollableDataView implements HabitDataView
         else
             p.setColor(color);
     }
+
+    private float getMaxMonthWidth()
+    {
+        float maxMonthWidth = 0;
+        GregorianCalendar day = DateHelper.getStartOfTodayCalendar();
+
+        for(int i = 0; i < 12; i++)
+        {
+            day.set(Calendar.MONTH, i);
+            float monthWidth = pText.measureText(dfMonth.format(day.getTime()));
+            maxMonthWidth = Math.max(maxMonthWidth, monthWidth);
+        }
+
+        return maxMonthWidth;
+    }
+
+    private float getMaxDayWidth()
+    {
+        float maxDayWidth = 0;
+        GregorianCalendar day = DateHelper.getStartOfTodayCalendar();
+
+        for(int i = 0; i < 28; i++)
+        {
+            day.set(Calendar.DAY_OF_MONTH, i);
+            float monthWidth = pText.measureText(dfMonth.format(day.getTime()));
+            maxDayWidth = Math.max(maxDayWidth, monthWidth);
+        }
+
+        return maxDayWidth;
+    }
 }