Alignment fixed for texts that contain RTL characters in HeaderRenderer

Author: rezazarchi

core/src/main/java/com/alamkanak/weekview/CanvasExtensions.kt

@@ -16,6 +16,19 @@ internal fun Canvas.draw(staticLayout: StaticLayout) {
     staticLayout.draw(this)
 }
 
+internal fun Canvas.drawRtl(staticLayout: StaticLayout) {
+    staticLayout.text.split("\n").forEachIndexed { index, text ->
+        val textPaint: Paint = staticLayout.paint
+        val xPos: Int = staticLayout.width / 2
+        drawText(
+            text,
+            xPos.toFloat(),
+            ((staticLayout.height / 2) * (index + 1) - (textPaint.descent() + textPaint.ascent()) / 2),
+            textPaint
+        )
+    }
+}
+
 internal fun Canvas.drawVerticalLine(
     horizontalOffset: Float,
     startY: Float,

core/src/main/java/com/alamkanak/weekview/HeaderRenderer.kt

@@ -173,11 +173,16 @@ private class DateLabelsDrawer(
         val key = date.toEpochDays()
         val textLayout = dateLabelLayouts[key]
 
+        val offset = if (textLayout.text.toString().isArabic()) 0f else viewState.dayWidth / 2f
         withTranslation(
-            x = startPixel + viewState.dayWidth / 2f,
+            x = startPixel + offset,
             y = viewState.headerPadding,
         ) {
-            draw(textLayout)
+            if (textLayout.text.toString().isArabic()) {
+                drawRtl(textLayout)
+            } else {
+                draw(textLayout)
+            }
         }
     }
 }