diff examples/gui/swing/BoxLayoutDemo.java @ 1:5df24c91468d

Oh my what a mess.

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/gui/swing/BoxLayoutDemo.java	Fri Apr 05 16:26:00 2019 +0100
@@ -0,0 +1,77 @@
+import java.awt.*;
+import java.awt.event.*;
+import javax.swing.*;
+
+public class BoxLayoutDemo {
+    protected static int NUM_COMPONENTS = 3;
+    protected static float[] xAlignment = {Component.LEFT_ALIGNMENT,
+                                 Component.CENTER_ALIGNMENT,
+                                 Component.RIGHT_ALIGNMENT};
+    protected static float[] hue = {0.0f, 0.33f, 0.67f};
+    protected static boolean restrictSize = true;
+    protected static boolean sizeIsRandom = false;
+    protected static BLDComponent[] bldComponent = 
+        new BLDComponent[NUM_COMPONENTS];
+
+    public static void main(String[] args) {
+        final JPanel panel = new JPanel();
+        panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
+
+        //Create the rectangles.
+        int shortSideSize = 15;
+        for (int i = 0; i < NUM_COMPONENTS; i++) {
+            if (sizeIsRandom) {
+                shortSideSize = (int)(30.0 * Math.random()) + 30;
+            } else {
+                shortSideSize += 10;
+            }
+            bldComponent[i] = new BLDComponent(xAlignment[i], hue[i], 
+                                             shortSideSize, 
+                                             restrictSize,
+                                             sizeIsRandom,
+                                             String.valueOf(i));
+            panel.add(bldComponent[i]);
+        }
+
+        //Create the instructions.
+        JLabel label = new JLabel("Click a rectangle to "
+                                + "change its X alignment.");
+        JCheckBox cb = new JCheckBox("Restrict maximum rectangle size.");
+        cb.setSelected(restrictSize);
+        cb.addItemListener(new ItemListener() {
+            public void itemStateChanged(ItemEvent e) {
+                if (e.getStateChange() == ItemEvent.SELECTED) {
+                    restrictSize = true;
+                } else {
+                    restrictSize = false;
+                }
+                notifyBLDComponents();
+            }
+        });
+
+        JFrame f = new JFrame("BoxLayoutDemo");
+        Container contentPane = f.getContentPane();
+        contentPane.add(panel, BorderLayout.CENTER);
+        panel.setBorder(BorderFactory.createLineBorder(Color.red));
+
+        Box box = Box.createVerticalBox();
+        box.add(label);
+        box.add(cb);
+
+        contentPane.add(box, BorderLayout.SOUTH);
+        f.addWindowListener(new WindowAdapter() {
+            public void windowClosing(WindowEvent e) {
+                System.exit(0);
+            }
+        });
+        f.pack();
+        f.setVisible(true);
+    }
+
+    static public void notifyBLDComponents() {
+        for (int i = 0; i < NUM_COMPONENTS; i++) {
+            bldComponent[i].setSizeRestriction(restrictSize);
+        }
+        bldComponent[0].revalidate();
+    }
+}