From 33613a85afc4b1481367fbe92a17ee59c240250b Mon Sep 17 00:00:00 2001
From: Sven Eisenhauer <sven@sven-eisenhauer.net>
Date: Fri, 10 Nov 2023 15:11:48 +0100
Subject: add new repo

---
 .../hjp5/examples/Listing2902.java                 | 69 ++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 Master/Reference Architectures and Patterns/hjp5/examples/Listing2902.java

(limited to 'Master/Reference Architectures and Patterns/hjp5/examples/Listing2902.java')

diff --git a/Master/Reference Architectures and Patterns/hjp5/examples/Listing2902.java b/Master/Reference Architectures and Patterns/hjp5/examples/Listing2902.java
new file mode 100644
index 0000000..be57239
--- /dev/null
+++ b/Master/Reference Architectures and Patterns/hjp5/examples/Listing2902.java	
@@ -0,0 +1,69 @@
+/* Listing2902.java */
+
+import java.awt.*;
+import java.awt.event.*;
+
+class ComponentRepaintAdapter
+extends ComponentAdapter
+{
+  public void componentMoved(ComponentEvent event)
+  {
+    event.getComponent().repaint();
+  }
+
+  public void componentResized(ComponentEvent event)
+  {
+    event.getComponent().repaint();
+  }
+}
+
+class BirdsEyeFrame
+extends Frame
+{
+  public BirdsEyeFrame()
+  {
+    super("BirdsEyeFrame");
+    addWindowListener(new WindowClosingAdapter(true));
+    addComponentListener(new ComponentRepaintAdapter());
+    setBackground(Color.lightGray);
+  }
+
+  public void paint(Graphics g)
+  {
+    Dimension screensize = getToolkit().getScreenSize();
+    Dimension framesize  = getSize();
+    double qx = framesize.width  / (double)screensize.width;
+    double qy = framesize.height / (double)screensize.height;
+    g.setColor(Color.white);
+    g.fillRect(
+      (int)(qx * getLocation().x),
+      (int)(qy * getLocation().y),
+      (int)(qx * framesize.width),
+      (int)(qy * framesize.height)
+    );
+    g.setColor(Color.darkGray);
+    g.fillRect(
+      (int)(qx * getLocation().x),
+      (int)(qy * getLocation().y),
+      (int)(qx * framesize.width),
+      (int)(qy * getInsets().top)
+    );
+    g.drawRect(
+      (int)(qx * getLocation().x),
+      (int)(qy * getLocation().y),
+      (int)(qx * framesize.width),
+      (int)(qy * framesize.height)
+    );
+  }
+}
+
+public class Listing2902
+{
+  public static void main(String[] args)
+  {
+    BirdsEyeFrame wnd = new BirdsEyeFrame();
+    wnd.setSize(300,200);
+    wnd.setLocation(200,100);
+    wnd.setVisible(true);
+  }
+}
\ No newline at end of file
-- 
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