Empty TabPane (not final yet)

src/main/java/edu/kit/formal/gui/controller/DebuggerMainWindowController.java

@@ -4,10 +4,7 @@ import de.uka.ilkd.key.logic.op.IProgramMethod;
 import de.uka.ilkd.key.pp.ProgramPrinter;
 import de.uka.ilkd.key.proof.init.ProofInputException;
 import de.uka.ilkd.key.speclang.Contract;
-import edu.kit.formal.gui.controls.GoalOptionsMenu;
-import edu.kit.formal.gui.controls.JavaArea;
-import edu.kit.formal.gui.controls.ScriptArea;
-import edu.kit.formal.gui.controls.SequentView;
+import edu.kit.formal.gui.controls.*;
 import edu.kit.formal.gui.model.RootModel;
 import edu.kit.formal.interpreter.Interpreter;
 import edu.kit.formal.interpreter.InterpreterBuilder;
@@ -211,7 +208,7 @@ public class DebuggerMainWindowController implements Initializable {
         });
 
         goalView.setCellFactory(GoalNodeListCell::new);
-
+        CustomTabPaneSkin skin = new CustomTabPaneSkin(tabPane);
         startTab.textProperty().bind(new StringBinding() {
             {
                 super.bind(model.scriptFileProperty());

src/main/java/edu/kit/formal/gui/controls/CustomTabPaneSkin.java

+package edu.kit.formal.gui.controls;
+
+import com.sun.javafx.scene.control.skin.TabPaneSkin;
+import javafx.scene.Node;
+import javafx.scene.control.TabPane;
+import javafx.scene.layout.Pane;
+
+/**
+ * A way to display a custom tab when tab pane is empty
+ * from https://stackoverflow.com/questions/35239420/display-label-if-tabpane-has-no-tabs
+ */
+public class CustomTabPaneSkin extends TabPaneSkin {
+
+
+    //private final VBox placeHolder;
+    //private final Label placeHolderText;
+    private final PlaceHolderTab placeHolder;
+
+    public CustomTabPaneSkin(TabPane tabPane) {
+        super(tabPane);
+        placeHolder = new PlaceHolderTab();
+        //placeHolderText = new Label( "Empty" );
+        //placeHolderText.setFont( Font.font( null, FontWeight.BOLD, 20 ) );
+        //placeHolderText.setAlignment( Pos.CENTER );
+
+        //placeHolderText.minWidthProperty().bind( getSkinnable().widthProperty() );
+        //placeHolderText.minHeightProperty().bind( getSkinnable().heightProperty() );
+
+        //placeHolder = new VBox( placeHolderText );
+        placeHolder.minWidthProperty().bind(getSkinnable().widthProperty());
+        placeHolder.minHeightProperty().bind(getSkinnable().heightProperty());
+        for (Node node : getChildren()) {
+            if (node.getStyleClass().contains("tab-header-area")) {
+
+                Pane headerArea = (Pane) node;
+                // Header area is hidden if there is no tabs, thus when the tabpane is "empty"
+                headerArea.visibleProperty().addListener((observable, oldValue, newValue)
+                                ->
+                        {
+                            if (newValue) {
+                                getChildren().remove(placeHolder);
+                            } else {
+
+                                getChildren().add(placeHolder);
+                            }
+                        }
+                );
+
+                break;
+            }
+        }
+    }
+
+    public PlaceHolderTab getPlaceHolder() {
+        return placeHolder;
+    }
+}

src/main/java/edu/kit/formal/gui/controls/PlaceHolderTab.java

+package edu.kit.formal.gui.controls;
+
+import javafx.geometry.Insets;
+import javafx.scene.control.Button;
+import javafx.scene.layout.VBox;
+
+/**
+ * Replacement for empty Tab with two buttons
+ */
+public class PlaceHolderTab extends VBox {
+
+
+    private final Button newScript = new Button("New Script");
+
+    private final Button openScript = new Button("Open Script");
+
+    public PlaceHolderTab() {
+        this.setPadding(new Insets(10, 50, 50, 50));
+        this.setSpacing(10);
+
+        this.getChildren().add(newScript);
+        this.getChildren().add(openScript);
+    }
+
+    public Button getNewScript() {
+        return newScript;
+    }
+
+    public Button getOpenScript() {
+        return openScript;
+    }
+
+
+}

src/main/java/edu/kit/formal/gui/controls/TabPaneScriptArea.java

+package edu.kit.formal.gui.controls;
+
+import javafx.fxml.FXMLLoader;
+import javafx.scene.layout.VBox;
+
+import java.io.IOException;
+
+/**
+ * Created by sarah on 6/8/17.
+ */
+public class TabPaneScriptArea extends VBox {
+    public TabPaneScriptArea() {
+        super();
+        FXMLLoader loader = new FXMLLoader(getClass().getResource("SectionPane.fxml"));
+        loader.setRoot(this);
+        loader.setController(this);
+        try {
+            loader.load();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+    }
+}

src/main/resources/DebuggerMain.fxml

@@ -97,7 +97,7 @@
                                 </Button>
                             </items>
                         </ToolBar>
-                        <TabPane fx:id="tabPane" side="left"
+                        <TabPane fx:id="tabPane" side="left" styleClass="tab-pane"
                                  tabClosingPolicy="SELECTED_TAB" VBox.vgrow="ALWAYS">
                             <tabs>
                                 <Tab fx:id="startTab" text="Untitled">

src/main/resources/edu/kit/formal/gui/controls/TabPaneScriptArea.fxml

+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import edu.kit.formal.gui.controls.ScriptArea?>
+<?import javafx.scene.control.Tab?>
+<?import javafx.scene.control.TabPane?>
+<?import javafx.scene.layout.*?>
+<fx:root xmlns:fx="http://javafx.com/fxml/1" prefHeight="100" prefWidth="250" styleClass="tab-pane"
+         type="javafx.scene.layout.BorderPane" xmlns="http://javafx.com/javafx/8.0.112">
+    <VBox>
+        <TabPane fx:id="tabPane" side="left"
+                 tabClosingPolicy="SELECTED_TAB" VBox.vgrow="ALWAYS">
+            <tabs>
+                <Tab fx:id="startTab" text="Untitled">
+                    <content>
+                        <ScriptArea fx:id="scriptArea" VBox.vgrow="ALWAYS"/>
+                    </content>
+                </Tab>
+            </tabs>
+        </TabPane>
+    </VBox>
+
+</fx:root>
\ No newline at end of file

src/main/resources/edu/kit/formal/gui/debugger-ui.less

@@ -195,4 +195,8 @@
 
   .header-buttons .button {
   }
+}
+
+.tab-pane {
+  -fx-skin: "edu.kit.formal.gui.controls.CustomTabPaneSkin";
 }
\ No newline at end of file