Add Random push/pop + palette colors add via hex strings (#179)

orx-palette/src/main/kotlin/PaletteStudio.kt

@@ -102,7 +102,7 @@ class PaletteStudio(
 
     private var onChangeListener = {}
 
-    private fun loadCollection(newCollection: Collections) {
+    fun loadCollection(newCollection: Collections) {
         val collectionPath: URL = collectionsResource.getValue(newCollection)
         palettes = mutableListOf()
 
@@ -177,6 +177,7 @@ class PaletteStudio(
         onChangeListener = fn
     }
 
+    @JvmName("addColorRGBaList")
     fun add(newPalette: List<ColorRGBa>) {
         palette = createPalette(newPalette)
 
@@ -184,6 +185,15 @@ class PaletteStudio(
         paletteIndex = palettes.lastIndex
     }
 
+    @JvmName("addHexList")
+    fun add(hexColors: List<String>) {
+        val newPalette = hexColors.map { ColorRGBa.fromHex(it) }
+        palette = createPalette(newPalette)
+
+        palettes.add(newPalette)
+        paletteIndex = palettes.lastIndex
+    }
+
     fun loadExternal(filePath: String) {
         palettes = mutableListOf()
 
@@ -222,8 +232,8 @@ class PaletteStudio(
         palette = createPalette(colors)
     }
 
-    fun changeCollection(newCollection: Collections) {
-        loadCollection(newCollection)
+    fun newCollection() {
+        palettes.clear()
     }
 
     private fun registerKeybindings(keyboard: Keyboard) {
@@ -249,4 +259,4 @@ class PaletteStudio(
     override fun setup(program: Program) {
         registerKeybindings(program.keyboard)
     }
-}
+}