feat: rough draft for scrollable type

src/main/kotlin/com/mineinabyss/guiy/components/lists/Paginated.kt

@@ -58,7 +58,7 @@ fun <T> Paginated(
 }
 
 @Composable
-private inline fun NavbarButtons(
+inline fun NavbarButtons(
     navbarPosition: NavbarPosition,
     background: ItemStack?,
     crossinline content: @Composable () -> Unit

src/main/kotlin/com/mineinabyss/guiy/components/lists/Scrollable.kt

@@ -0,0 +1,57 @@
+package com.mineinabyss.guiy.components.lists
+
+import androidx.compose.runtime.*
+import com.mineinabyss.guiy.components.Spacer
+import com.mineinabyss.guiy.layout.Box
+import com.mineinabyss.guiy.layout.Size
+import com.mineinabyss.guiy.modifiers.Modifier
+import com.mineinabyss.guiy.modifiers.fillMaxSize
+import com.mineinabyss.guiy.modifiers.onSizeChanged
+import com.mineinabyss.idofront.items.editItemMeta
+import org.bukkit.Material
+import org.bukkit.inventory.ItemStack
+
+@Composable
+fun <T> Scrollable(
+    items: List<T>,
+    startLine: Int,
+    itemsPerLine: Int,
+    totalLines: Int,
+    nextButton: @Composable () -> Unit,
+    previousButton: @Composable () -> Unit,
+    navbarPosition: NavbarPosition = NavbarPosition.BOTTOM,
+    navbarBackground: ItemStack? = remember {
+        ItemStack(Material.GRAY_STAINED_GLASS_PANE).editItemMeta {
+            isHideTooltip = true
+        }
+    },
+    content: @Composable (page: List<T>) -> Unit,
+) {
+    var size by remember { mutableStateOf(Size(0, 0)) }
+    Box(Modifier.fillMaxSize()) {
+        val start = startLine * itemsPerLine
+        val end = (startLine + 1) * itemsPerLine * totalLines
+        val pageItems = remember(start, end) {
+            if (start < 0) emptyList()
+            else items.subList(start, end.coerceAtMost(items.size))
+        }
+        NavbarLayout(
+            position = navbarPosition,
+            navbar = {
+                NavbarButtons(navbarPosition, navbarBackground) {
+                    if (startLine > 0) previousButton()
+                    //else Spacer(1, 1)
+                    if (end < items.size) nextButton()
+                    //else Spacer(1, 1)
+                }
+            },
+            content = {
+                Box(Modifier.fillMaxSize().onSizeChanged {
+                    size = it
+                }) {
+                    content(pageItems)
+                }
+            }
+        )
+    }
+}