also custom elements can have a label or an orientation

src/main/java/de/neemann/digital/gui/LibrarySelector.java

@@ -267,6 +267,8 @@ public class LibrarySelector implements ElementNotFoundNotification {
             if (attributes.contains(Keys.DESCRIPTION))
                 setDescription(attributes.get(Keys.DESCRIPTION));
             setShortName(file.getName());
+            addAttribute(Keys.ROTATE);
+            addAttribute(Keys.LABEL);
         }
 
         /**

src/main/java/de/neemann/digital/gui/components/AttributeDialog.java

@@ -4,6 +4,7 @@ import de.neemann.digital.core.element.ElementAttributes;
 import de.neemann.digital.core.element.Key;
 import de.neemann.digital.lang.Lang;
 import de.neemann.gui.ErrorMessage;
+import de.neemann.gui.ToolTipAction;
 
 import javax.swing.*;
 import java.awt.*;
@@ -16,6 +17,8 @@ import java.util.ArrayList;
 public class AttributeDialog extends JDialog {
 
     private final java.util.List<EditorHolder> editors;
+    private final JPanel panel;
+    private final Point pos;
     private boolean changed = false;
 
     /**
@@ -39,9 +42,10 @@ public class AttributeDialog extends JDialog {
      */
     public AttributeDialog(Component parent, Point pos, java.util.List<Key> list, ElementAttributes elementAttributes) {
         super(SwingUtilities.getWindowAncestor(parent), Lang.get("attr_dialogTitle"), ModalityType.APPLICATION_MODAL);
+        this.pos = pos;
         setDefaultCloseOperation(DISPOSE_ON_CLOSE);
 
-        JPanel panel = new JPanel(new DialogLayout());
+        panel = new JPanel(new DialogLayout());
 
         getContentPane().add(new JScrollPane(panel));
 
@@ -68,13 +72,19 @@ public class AttributeDialog extends JDialog {
         getContentPane().add(okButton, BorderLayout.SOUTH);
 
         getRootPane().setDefaultButton(okButton);
+    }
 
-        pack();
+    /**
-
+     * Adds a button to this dialog
-        if (pos == null)
+     *
-            setLocationRelativeTo(null);
+     * @param label  a label
-        else
+     * @param action the action
-            setLocation(pos.x, pos.y);
+     * @return this for chained calls
+     */
+    public AttributeDialog addButton(String label, ToolTipAction action) {
+        panel.add(new JLabel(label), DialogLayout.LABEL);
+        panel.add(action.createJButton(), DialogLayout.INPUT);
+        return this;
     }
 
     private void setEditedValues(ElementAttributes attr) {
@@ -88,6 +98,13 @@ public class AttributeDialog extends JDialog {
      * @return true if data was changed
      */
     public boolean showDialog() {
+        pack();
+
+        if (pos == null)
+            setLocationRelativeTo(null);
+        else
+            setLocation(pos.x, pos.y);
+
         setVisible(true);
         return changed;
     }

src/main/java/de/neemann/digital/gui/components/CircuitComponent.java

@@ -366,8 +366,22 @@ public class CircuitComponent extends JComponent {
     private void editAttributes(VisualElement vp, MouseEvent e) {
         String name = vp.getElementName();
         ElementTypeDescription elementType = library.getElementType(name);
+        ArrayList<Key> list = elementType.getAttributeList();
+        if (list.size() > 0) {
+            Point p = new Point(e.getX(), e.getY());
+            SwingUtilities.convertPointToScreen(p, CircuitComponent.this);
+            AttributeDialog attributeDialog = new AttributeDialog(this, p, list, vp.getElementAttributes());
             if (elementType instanceof LibrarySelector.ElementTypeDescriptionCustom) {
-            new Main(this, ((LibrarySelector.ElementTypeDescriptionCustom) elementType).getFile(), new SavedListener() {
+                attributeDialog.addButton(Lang.get("attr_openCircuitLabel"), new ToolTipAction(Lang.get("attr_openCircuit")) {
+                    @Override
+                    public void actionPerformed(ActionEvent e) {
+                        attributeDialog.dispose();
+                        SwingUtilities.invokeLater(new Runnable() {
+                            @Override
+                            public void run() {
+                                new Main(CircuitComponent.this,
+                                        ((LibrarySelector.ElementTypeDescriptionCustom) elementType).getFile(),
+                                        new SavedListener() {
                                             @Override
                                             public void saved(File filename) {
                                                 if (parentsSavedListener != null)
@@ -377,18 +391,17 @@ public class CircuitComponent extends JComponent {
                                                 repaint();
                                             }
                                         }).setVisible(true);
-        } else {
+                            }
-            ArrayList<Key> list = elementType.getAttributeList();
+                        });
-            if (list.size() > 0) {
+                    }
-                Point p = new Point(e.getX(), e.getY());
+                }.setToolTip(Lang.get("attr_openCircuit_tt")));
-                SwingUtilities.convertPointToScreen(p, CircuitComponent.this);
+            }
-                if (new AttributeDialog(this, p, list, vp.getElementAttributes()).showDialog()) {
+            if (attributeDialog.showDialog()) {
                 circuit.modified();
                 repaint();
             }
         }
     }
-    }
 
     private class MouseDispatcher extends MouseAdapter implements MouseMotionListener {
         private Vector pos;

src/main/resources/lang/lang_de.properties

@@ -57,6 +57,10 @@ key_intFormat_dec=Dezimal
 key_intFormat_hex=Hexadezimal
 key_intFormat_bin=Bin\u00E4r
 key_intFormat_ascii=ASCII
+attr_openCircuitLabel=Schaltung anzeigen:
+attr_openCircuit=Anzeigen
+attr_openCircuit_tt=\u00D6ffnet die Schaltung in einem neuen Fenster.
+
 
 elem_And=Und
 elem_NAnd=Nicht Und

src/main/resources/lang/lang_en.properties

@@ -51,6 +51,9 @@ key_intFormat_dec=decimal
 key_intFormat_hex=hex
 key_intFormat_bin=bin
 key_intFormat_ascii=ascii
+attr_openCircuitLabel=Opens the circuit:
+attr_openCircuit=Open
+attr_openCircuit_tt=Opens the circuit in a new window.
 
 elem_And=And
 elem_NAnd=NAnd