convert some Actions to kotlin

app/src/main/kotlin/com/simplemobiletools/draw/actions/Line.kt

@@ -0,0 +1,45 @@
+package com.simplemobiletools.draw.actions
+
+import android.graphics.Path
+
+import java.io.IOException
+import java.io.Writer
+import java.security.InvalidParameterException
+
+class Line : Action {
+
+    val x: Float
+    val y: Float
+
+    @Throws(InvalidParameterException::class)
+    constructor(data: String) {
+        if (data.startsWith("L"))
+            throw InvalidParameterException("The Line data should start with 'L'.")
+
+        try {
+            val xy = data.substring(1).split(",".toRegex()).dropLastWhile(String::isEmpty).toTypedArray()
+            x = java.lang.Float.parseFloat(xy[0].trim { it <= ' ' })
+            y = java.lang.Float.parseFloat(xy[1].trim { it <= ' ' })
+        } catch (ignored: Exception) {
+            throw InvalidParameterException("Error parsing the given Line data.")
+        }
+
+    }
+
+    constructor(x: Float, y: Float) {
+        this.x = x
+        this.y = y
+    }
+
+    override fun perform(path: Path) {
+        path.lineTo(x, y)
+    }
+
+    @Throws(IOException::class)
+    override fun perform(writer: Writer) {
+        writer.write("L")
+        writer.write(x.toString())
+        writer.write(",")
+        writer.write(y.toString())
+    }
+}

app/src/main/kotlin/com/simplemobiletools/draw/actions/Move.kt

@@ -0,0 +1,45 @@
+package com.simplemobiletools.draw.actions
+
+import android.graphics.Path
+
+import java.io.IOException
+import java.io.Writer
+import java.security.InvalidParameterException
+
+class Move : Action {
+
+    val x: Float
+    val y: Float
+
+    @Throws(InvalidParameterException::class)
+    constructor(data: String) {
+        if (data.startsWith("M"))
+            throw InvalidParameterException("The Move data should start with 'M'.")
+
+        try {
+            val xy = data.substring(1).split(",".toRegex()).dropLastWhile(String::isEmpty).toTypedArray()
+            x = java.lang.Float.parseFloat(xy[0].trim { it <= ' ' })
+            y = java.lang.Float.parseFloat(xy[1].trim { it <= ' ' })
+        } catch (ignored: Exception) {
+            throw InvalidParameterException("Error parsing the given Move data.")
+        }
+
+    }
+
+    constructor(x: Float, y: Float) {
+        this.x = x
+        this.y = y
+    }
+
+    override fun perform(path: Path) {
+        path.moveTo(x, y)
+    }
+
+    @Throws(IOException::class)
+    override fun perform(writer: Writer) {
+        writer.write("M")
+        writer.write(x.toString())
+        writer.write(",")
+        writer.write(y.toString())
+    }
+}

app/src/main/kotlin/com/simplemobiletools/draw/actions/Quad.kt

@@ -0,0 +1,57 @@
+package com.simplemobiletools.draw.actions
+
+import android.graphics.Path
+
+import java.io.IOException
+import java.io.Writer
+import java.security.InvalidParameterException
+
+class Quad : Action {
+
+    val x1: Float
+    val y1: Float
+    val x2: Float
+    val y2: Float
+
+    constructor(data: String) {
+        if (data.startsWith("Q"))
+            throw InvalidParameterException("The Quad data should start with 'Q'.")
+
+        try {
+            val parts = data.split("\\s+".toRegex()).dropLastWhile(String::isEmpty).toTypedArray()
+            val xy1 = parts[0].substring(1).split(",".toRegex()).dropLastWhile(String::isEmpty).toTypedArray()
+            val xy2 = parts[1].split(",".toRegex()).dropLastWhile(String::isEmpty).toTypedArray() // No need to skip the 'Q' here
+
+            x1 = java.lang.Float.parseFloat(xy1[0].trim { it <= ' ' })
+            y1 = java.lang.Float.parseFloat(xy1[1].trim { it <= ' ' })
+            x2 = java.lang.Float.parseFloat(xy2[0].trim { it <= ' ' })
+            y2 = java.lang.Float.parseFloat(xy2[1].trim { it <= ' ' })
+        } catch (ignored: Exception) {
+            throw InvalidParameterException("Error parsing the given Quad data.")
+        }
+
+    }
+
+    constructor(x1: Float, y1: Float, x2: Float, y2: Float) {
+        this.x1 = x1
+        this.y1 = y1
+        this.x2 = x2
+        this.y2 = y2
+    }
+
+    override fun perform(path: Path) {
+        path.quadTo(x1, y1, x2, y2)
+    }
+
+    @Throws(IOException::class)
+    override fun perform(writer: Writer) {
+        writer.write("Q")
+        writer.write(x1.toString())
+        writer.write(",")
+        writer.write(y1.toString())
+        writer.write(" ")
+        writer.write(x2.toString())
+        writer.write(",")
+        writer.write(y2.toString())
+    }
+}