feat: Scroll now working on both axis and switchable

library/src/main/java/com/dzeio/charts/ChartView.kt

@@ -32,10 +32,23 @@ class ChartView @JvmOverloads constructor(context: Context?, attrs: AttributeSet
     override var padding: Float = 8f
 
     private val scroller = ChartScroll(this).apply {
-        var lastMovement = 0.0
-        setOnChartMoved { movementX, _ ->
-            xAxis.x += (movementX - lastMovement) * xAxis.getDataWidth() / width
-            lastMovement = movementX.toDouble()
+        var lastMovementX = 0.0
+        var lastMovementY = 0f
+        setOnChartMoved { movementX, movementY ->
+            if (xAxis.scrollEnabled) {
+                xAxis.x += (movementX - lastMovementX) * xAxis.getDataWidth() / width
+                lastMovementX = movementX.toDouble()
+            }
+
+            if (yAxis.scrollEnabled) {
+                val currentYMax = yAxis.getYMax()
+                val currentYMin = yAxis.getYMin()
+                val change = (movementY - lastMovementY) * (currentYMax - currentYMin) / height
+                yAxis.setYMax(currentYMax + change)
+                yAxis.setYMin(currentYMin + change)
+                lastMovementY = movementY
+            }
+
             refresh()
         }
 //        setOnZoomChanged {

library/src/main/java/com/dzeio/charts/axis/XAxis.kt

@@ -41,6 +41,8 @@ class XAxis(
 
     override var labelCount: Int = 2
 
+    override var scrollEnabled: Boolean = false
+
     var spacing = 16.0
 
     override val textPaint = Paint().apply {

library/src/main/java/com/dzeio/charts/axis/XAxisInterface.kt

@@ -36,6 +36,11 @@ sealed interface XAxisInterface {
      */
     var labelCount: Int
 
+    /**
+     * is Horizontal Scrolling enabled
+     */
+    var scrollEnabled: Boolean
+
     /**
      * run when manually refreshing the system
      *

library/src/main/java/com/dzeio/charts/axis/YAxis.kt

@@ -40,6 +40,10 @@ class YAxis(
     private var min: Float? = 0f
     private var max: Float? = null
 
+    var drawZeroLine: Boolean = true
+
+    override var scrollEnabled: Boolean = false
+
     private val rect = Rect()
 
     override fun setYMin(yMin: Float?): YAxisInterface {

library/src/main/java/com/dzeio/charts/axis/YAxisInterface.kt

@@ -33,6 +33,11 @@ sealed interface YAxisInterface {
      */
     val goalLinePaint: Paint
 
+    /**
+     * is vertical scrolling enabled
+     */
+    var scrollEnabled: Boolean
+
     /**
      * run when manually refreshing the system
      *