Initial commit

app/src/main/java/xyz/quaver/pupil/util/SetLineOverlap.kt

@@ -0,0 +1,37 @@
+package xyz.quaver.pupil.util
+
+import android.graphics.Paint
+import android.text.style.LineHeightSpan
+
+class SetLineOverlap(private val overlap: Boolean) : LineHeightSpan {
+    companion object {
+        private var originalBottom = 15
+        private var originalDescent = 13
+        private var overlapSaved = false
+    }
+
+    override fun chooseHeight(
+        text: CharSequence?,
+        start: Int,
+        end: Int,
+        spanstartv: Int,
+        lineHeight: Int,
+        fm: Paint.FontMetricsInt?
+    ) {
+        fm ?: return
+
+        if (overlap) {
+            if (overlapSaved) {
+                originalBottom = fm.bottom
+                originalDescent = fm.descent
+                overlapSaved = true
+            }
+            fm.bottom += fm.top
+            fm.descent += fm.top
+        } else {
+            fm.bottom = originalBottom
+            fm.descent = originalDescent
+            overlapSaved = false
+        }
+    }
+}