Let a label show a Controller method and follow other values in the View.

The method does not write the Model, and a change to the label itself does not run the method again. Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-30 17:37:06 +01:00
parent 99886efa8b
commit 6e3036669a
8 changed files with 442 additions and 16 deletions
@@ -0,0 +1,70 @@
+package de.neitzel.fx.view;
+
+/**
+ * A Computed binding declared in FXML.
+ * <p>
+ * The element names the control by {@code fx:id}, the control property, and a no-argument
+ * method on the Controller. The method value uses a {@code #method} prefix, such as
+ * {@code #workingAge}. The method may read the Controller's fields. Its result is written to
+ * the control property. The method does not write the Model.
+ */
+public class ComputedBinding {
+
+    private String control;
+    private String property;
+    private String method;
+
+    /**
+     * Sets the {@code fx:id} of the control.
+     *
+     * @param control the control id
+     */
+    public void setControl(String control) {
+        this.control = control;
+    }
+
+    /**
+     * Sets the control property name, such as {@code text}.
+     *
+     * @param property the property name
+     */
+    public void setProperty(String property) {
+        this.property = property;
+    }
+
+    /**
+     * Sets the Controller method. A {@code #method} value names a no-argument method.
+     *
+     * @param method the method value, such as {@code #workingAge}
+     */
+    public void setMethod(String method) {
+        this.method = method;
+    }
+
+    /**
+     * Returns the {@code fx:id} of the control.
+     *
+     * @return the control id
+     */
+    public String getControl() {
+        return control;
+    }
+
+    /**
+     * Returns the control property name.
+     *
+     * @return the property name
+     */
+    public String getProperty() {
+        return property;
+    }
+
+    /**
+     * Returns the Controller method value.
+     *
+     * @return the method value, such as {@code #workingAge}
+     */
+    public String getMethod() {
+        return method;
+    }
+}