Added checks before generating styled typeface
Other changes: • Added flag for enabling merging of styles
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				| @ -23,34 +23,48 @@ public class CustomTypefaceSpan extends MetricAffectingSpan { | ||||
|         return new CustomTypefaceSpan(typeface); | ||||
|     } | ||||
| 
 | ||||
|     @NonNull | ||||
|     public static CustomTypefaceSpan create(@NonNull Typeface typeface, boolean mergeStyles) { | ||||
|         return new CustomTypefaceSpan(typeface, mergeStyles); | ||||
|     } | ||||
| 
 | ||||
|     private final Typeface typeface; | ||||
| 
 | ||||
|     private final boolean mergeStyles; | ||||
| 
 | ||||
|     public CustomTypefaceSpan(@NonNull Typeface typeface) { | ||||
|         this(typeface, false); | ||||
|     } | ||||
| 
 | ||||
|     public CustomTypefaceSpan(@NonNull Typeface typeface, boolean mergeStyles) { | ||||
|         this.typeface = typeface; | ||||
|         this.mergeStyles = mergeStyles; | ||||
|     } | ||||
| 
 | ||||
| 
 | ||||
|     @Override | ||||
|     public void updateMeasureState(@NonNull TextPaint paint) { | ||||
|         updatePaint(paint); | ||||
|     } | ||||
| 
 | ||||
|     @Override | ||||
|     public void updateMeasureState(@NonNull TextPaint p) { | ||||
|         updatePaint(p); | ||||
|     } | ||||
| 
 | ||||
|     @Override | ||||
|     public void updateDrawState(@NonNull TextPaint tp) { | ||||
|         updatePaint(tp); | ||||
|     public void updateDrawState(@NonNull TextPaint paint) { | ||||
|         updatePaint(paint); | ||||
|     } | ||||
| 
 | ||||
|     private void updatePaint(@NonNull TextPaint paint) { | ||||
|         final Typeface old = paint.getTypeface(); | ||||
|         final int oldStyle; | ||||
|         if (old == null) { | ||||
|             oldStyle = Typeface.NORMAL; | ||||
|         final Typeface oldTypeface = paint.getTypeface(); | ||||
|         if (!mergeStyles || | ||||
|                 oldTypeface == null || | ||||
|                 oldTypeface.getStyle() == Typeface.NORMAL) { | ||||
|             paint.setTypeface(typeface); | ||||
|         } else { | ||||
|             oldStyle = old.getStyle(); | ||||
|             final int oldStyle = oldTypeface.getStyle(); | ||||
| 
 | ||||
|             @SuppressLint("WrongConstant") final int want = oldStyle | typeface.getStyle(); | ||||
|             final Typeface styledTypeface = Typeface.create(typeface, want); | ||||
| 
 | ||||
|             paint.setTypeface(styledTypeface); | ||||
|         } | ||||
| 
 | ||||
|         @SuppressLint("WrongConstant") final int want = oldStyle | typeface.getStyle(); | ||||
|         final Typeface styledTypeface = Typeface.create(typeface, want); | ||||
| 
 | ||||
|         paint.setTypeface(styledTypeface); | ||||
|     } | ||||
| } | ||||
|  | ||||
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	 Cyrus Bakhtiari-Haftlang
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