[Editor] Add option to preview all layers in map canvas

editor/src/main/kotlin/com/bartlomiejpluta/base/editor/map/canvas/MapCanvas.kt

@@ -75,6 +75,9 @@ class MapCanvas(val map: GameMapVM, private val editorStateVM: EditorStateVM, pr
       renderUnderlyingLayers(gc)
       renderCover(gc)
       renderSelectedLayer(gc)
+      if (editorStateVM.renderAllLayers) {
+         renderOverlappingLayers(gc)
+      }
       renderGrid(gc)
       painter.render(gc)
    }
@@ -98,6 +101,12 @@ class MapCanvas(val map: GameMapVM, private val editorStateVM: EditorStateVM, pr
       }
    }
 
+   private fun renderOverlappingLayers(gc: GraphicsContext) {
+      for (layer in map.layers.drop(editorStateVM.selectedLayerIndex + 1)) {
+         dispatchLayerRender(gc, layer)
+      }
+   }
+
    private fun dispatchLayerRender(gc: GraphicsContext, layer: Layer) {
       when (layer) {
          is TileLayer -> renderTileLayer(gc, layer)

editor/src/main/kotlin/com/bartlomiejpluta/base/editor/map/component/MapPane.kt

@@ -37,6 +37,7 @@ class MapPane(
       editorStateVM.showGridProperty.addListener { _, _, _ -> render() }
       editorStateVM.selectedLayerIndexProperty.addListener { _, _, _ -> render() }
       editorStateVM.coverUnderlyingLayersProperty.addListener { _, _, _ -> render() }
+      editorStateVM.renderAllLayersProperty.addListener { _, _, _ -> render() }
 
       render()
    }

editor/src/main/kotlin/com/bartlomiejpluta/base/editor/map/view/editor/MapToolbarView.kt

@@ -40,7 +40,7 @@ class MapToolbarView : View() {
       { editorStateVM.selectedLayer is AutoTileLayer },
       editorStateVM.selectedLayerProperty
    )
-   
+
    private val isObjectLayerSelected = Bindings.createBooleanBinding(
       { editorStateVM.selectedLayer is ObjectLayer },
       editorStateVM.selectedLayerProperty
@@ -82,18 +82,17 @@ class MapToolbarView : View() {
 
       togglebutton {
          graphic = FontIcon("fa-window-restore")
-
-         action {
-            editorStateVM.coverUnderlyingLayers = isSelected
-         }
+         editorStateVM.coverUnderlyingLayersProperty.bind(selectedProperty())
       }
 
       togglebutton {
          graphic = FontIcon("fa-th")
+         editorStateVM.showGridProperty.bind(selectedProperty())
+      }
 
-         action {
-            editorStateVM.showGrid = isSelected
-         }
+      togglebutton {
+         graphic = FontIcon("fa-clone")
+         editorStateVM.renderAllLayersProperty.bind(selectedProperty())
       }
 
       separator()

editor/src/main/kotlin/com/bartlomiejpluta/base/editor/map/viewmodel/EditorStateVM.kt

@@ -30,4 +30,7 @@ class EditorStateVM : ViewModel() {
 
    val cursorColumnProperty = SimpleIntegerProperty(-1)
    val cursorColumn by cursorColumnProperty
+
+   val renderAllLayersProperty = SimpleBooleanProperty(false)
+   var renderAllLayers by renderAllLayersProperty
 }