don't open export if nothing is selected & clean up

client/src/main/kotlin/org/hso/texturesyncclient/controller/RootController.kt

@@ -32,16 +32,11 @@ import javax.imageio.ImageIO
 class RootController : Controller() {
 
     private val mvc: MainViewController by inject()
-
     private val svc: StartupViewController by inject()
 
     private lateinit var con: Connection
-
     private lateinit var selectedTextureModel: GUIModel
-
     private var lastExportDir: String = System.getProperty("user.home")
-    lateinit var selectedTexture: Texture
-    fun isSelectedTextureInitialized() = ::selectedTexture.isInitialized
 
     /**
      * calculate the resolution, get today's date -> upload to server
@@ -54,7 +49,7 @@ class RootController : Controller() {
 
         val uuid = UUID.randomUUID()
         val format = if (File(path).extension.toLowerCase() == "png") TextureFormat.PNG else TextureFormat.JPEG
-        var bimg = ImageIO.read(File(path)) //image for obtaining resolution
+        val bimg = ImageIO.read(File(path)) //image for obtaining resolution
         val resolution = Pair(bimg.height, bimg.width)
         val cal = Calendar.getInstance() //calendar obj with current time
         val hash = Sha256(data)
@@ -228,9 +223,8 @@ class RootController : Controller() {
 
     /**
      * remove a texture from the FolderView and the server
-     * @param data the texture as meta element
      */
-    fun deleteTexture(data: Texture) {
+    fun deleteTexture() {
         val dialogDelete = JFXOkayCancelAlert(
             "Löschen",
             "Textur ${selectedTextureModel.data.name} wirklich löschen?",
@@ -257,7 +251,6 @@ class RootController : Controller() {
                 newTexture,
                 con.getTextureFile(selectedTextureModel.data.textureHash)
             )
-            selectedTextureModel.setTexture(newTexture)
             selectedTextureModel.data = newTexture
         } catch (e: Exception) {
             println(e)
@@ -278,9 +271,13 @@ class RootController : Controller() {
      */
     fun setSelectedTexture(model: GUIModel) {
         selectedTextureModel = model
+        selectedTexture = model.data
     }
 
     companion object {
+
+        var selectedTexture: Texture? = null
+
         fun switchStartupToMain() {
             Platform.runLater {
                 find(StartupView::class).replaceWith(MainView::class, sizeToScene = true, centerOnScreen = true)

client/src/main/kotlin/org/hso/texturesyncclient/model/GUIModel.kt

@@ -12,6 +12,7 @@ import javafx.scene.layout.BackgroundFill
 import javafx.scene.layout.CornerRadii
 import javafx.scene.layout.VBox
 import javafx.scene.paint.Paint
+import org.hso.texturesyncclient.controller.RootController
 import tornadofx.addClass
 import tornadofx.find
 import tornadofx.paddingTop
@@ -24,12 +25,9 @@ class GUIModel constructor(var data: Texture, img: Image) : VBox() {
     private var exportItem = MenuItem("exportiern")
     private var deleteItem = MenuItem("löschen")
 
-    private lateinit var texture: Texture
-
     private val gmc = find(GUIModelController::class)
 
     init {
-        texture = data
         super.setPadding(Insets(5.0, 5.0, 5.0, 5.0))
         super.getChildren().addAll(image, label)
         super.setOnContextMenuRequested { p0 -> contextMenu.show(this@GUIModel, p0.screenX, p0.screenY) }
@@ -69,15 +67,11 @@ class GUIModel constructor(var data: Texture, img: Image) : VBox() {
         }
 
         deleteItem.setOnAction {
-            gmc.delete(data)
+            gmc.delete()
         }
 
         contextMenu.items.add(exportItem)
         contextMenu.items.add(deleteItem)
     }
 
-    fun setTexture(data: Texture) {
-        texture = data
-    }
-
 }

client/src/main/kotlin/org/hso/texturesyncclient/model/GUIModelController.kt

@@ -14,8 +14,8 @@ class GUIModelController : Controller() {
         rootc.exportTexture(data)
     }
 
-    fun delete(data: Texture) {
-        rootc.deleteTexture(data)
+    fun delete() {
+        rootc.deleteTexture()
     }
 
     fun previewSelectedAction(data: Texture) {

client/src/main/kotlin/org/hso/texturesyncclient/view/mainView/MainViewController.kt

@@ -67,7 +67,7 @@ class MainViewController : Controller() {
         folderView.children.clear()
         mv.cvSearch.isDisable = true
         setPreview3DTexture(Image("icons/TextureSync_Icon_256x256.jpeg"))   // reset the 3DPreview to the logo
-        // TODO should we clear the selectedTexture?
+        RootController.selectedTexture = null
 
         runAsync {
             rootc.queryElements(tags)
@@ -100,9 +100,7 @@ class MainViewController : Controller() {
     }
 
     fun scExport() {
-        if (rootc.isSelectedTextureInitialized()) {
-            rootc.exportTexture(rootc.selectedTexture)
-        }
+        RootController.selectedTexture?.let { rootc.exportTexture(RootController.selectedTexture!!) }
     }
 
 }