Changes to enable Jake2 to run well as an applet inside the

next-generation Java Plug-In. Added Globals.appletMode, Globals.applet
and Globals.sizeChangeListener to be able to easily pass around the
knowledge that the system is running in applet mode, and the applet
itself, which becomes the parent container for the output. Most
changes were in Jsr231Driver to support putting the Display into a
preexisting parent container rather than a new Frame each
time. Changed JOGLKBD to allow manual initialization of the parent
container rather than obtaining it from a CreateNotify or
ConfigureNotify event since these will never be generated in the
applet case. Removed various calls to System.exit(), although strictly
speaking this is no longer necessary because it is expected that the
separate_jvm parameter will be used in conjunction with the new Java
Plug-In to create a fresh JVM instance for each run of Jake2. Video
mode switching in applet mode is working; the applet resizes (via
JavaScript) to accommodate the newly selected resolution. Full screen
mode when running as an applet is not implemented at this point, as
the intent was to show this inside the browser, though support could
be added very straightforwardly.

1 files changed, 157 insertions, 0 deletions

diff --git a/src/jake2/CompatibilityApplet.java b/src/jake2/CompatibilityApplet.java
new file mode 100755
index 0000000..216b560
--- /dev/null
+++ b/src/jake2/CompatibilityApplet.java
@@ -0,0 +1,157 @@
+/*
+ * Copyright 2008 Sun Microsystems, Inc.  All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *   - Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *
+ *   - Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ *   - Neither the name of Sun Microsystems nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package jake2;
+
+import java.applet.*;
+import java.awt.Canvas;
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.FontMetrics;
+import java.awt.Frame;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.event.*;
+import java.awt.font.*;
+import java.awt.geom.*;
+import java.net.*;
+import java.text.*;
+import java.util.*;
+
+/**
+ * An applet to smooth the adoption of newer applet content which runs
+ * only with the new Java Plug-In: in particular, applets launched via
+ * JNLP. It displays some informative text; clicking on the text will
+ * open a new browser window pointing to the download page for the new
+ * Java Plug-In. This applet runs even on very early versions of the
+ * JRE and can be referenced from the applet tag's code / archive
+ * attributes while the jnlp_href can point to the new-style applet's
+ * code.
+ * <P>
+ * In 6u10 build 13, it is necessary to copy this applet's source code
+ * and rename it to be exactly the same class name as is in the
+ * main-class attribute in the JNLP file, preferably referenced via
+ * the archive attribute in a jar named something like
+ * "BackwardCompatibility.jar". In 6u10 build 14, the applet tag may
+ * refer to this class via its code attribute, and the JNLP file may
+ * point to an entirely different class name, allowing one copy of the
+ * compatibility applet to be used for many different JNLP-launched
+ * applets.
+ * <P>
+ * Parameters supported:
+ * <P>
+ * <CODE>compat_fontsize</CODE> - the font size used to draw the text.<BR>
+ * <CODE>compat_fgcolor</CODE> - the color used to draw the text.<BR>
+ * <CODE>compat_bgcolor</CODE> - the color used to draw the text.
+ *
+ * @author Kenneth Russell
+ */
+
+public class CompatibilityApplet extends java.applet.Applet {
+    private Font font;
+    private static final String inputText = "Click here to get the new Java Plug-In";
+    private static final String url = "https://jdk6.dev.java.net/6uNea.html";
+
+    public void init() {
+        int fontSize = 36;
+        try {
+            fontSize = Integer.parseInt(getParameter("compat_fontsize"));
+        } catch (Exception e) {
+        }
+        Color fgColor = Color.black;
+        Color bgColor = Color.white;
+        try {
+            fgColor = Color.decode(getParameter("compat_fgcolor"));
+        } catch (Exception e) {
+        }
+        try {
+            bgColor = Color.decode(getParameter("compat_bgcolor"));
+        } catch (Exception e) {
+        }
+        font = new Font("SansSerif", Font.PLAIN, fontSize);
+        setForeground(fgColor);
+        setBackground(bgColor);
+        addMouseListener(new MouseAdapter() {
+                public void mouseClicked(MouseEvent e) {
+                    try {
+                        getAppletContext().showDocument(new URL(url), "_blank");
+                    } catch (Exception ex) {
+                    }
+                }
+            });
+    }
+
+    static class LineInfo {
+        String text;
+        float width;
+        float height;
+
+        LineInfo(String text, float width, float height) {
+            this.text = text;
+            this.width = width;
+            this.height = height;
+        }
+    }
+
+    public void paint(Graphics graphics) {
+        Graphics2D g = (Graphics2D) graphics;
+        List/*<LineInfo>*/ lines = new ArrayList();
+        FontMetrics fm = g.getFontMetrics();
+        FontRenderContext frc = g.getFontRenderContext();
+        Map attrs = new HashMap();
+        attrs.put(TextAttribute.FONT, font);
+        float totalHeight = 0;
+        int curPos = 0;
+        AttributedString str = new AttributedString(inputText, attrs);
+        LineBreakMeasurer measurer = new LineBreakMeasurer(str.getIterator(), frc);
+        while (measurer.getPosition() < inputText.length()) {
+            // Give us a few pixels inset from the edges
+            int nextPos = measurer.nextOffset(getWidth() - 10);
+            String line = inputText.substring(curPos, nextPos);
+            GlyphVector gv = font.createGlyphVector(frc, line);
+            Rectangle2D bounds = gv.getVisualBounds();
+            float height = (float) bounds.getHeight() + 5;
+            lines.add(new LineInfo(line, (float) bounds.getWidth(), height));
+            totalHeight += height;
+            curPos = nextPos;
+            measurer.setPosition(curPos);
+        }
+        // Draw the strings centered vertically and horizontally in this component
+        g.setFont(font);
+        float curY = (getHeight() - totalHeight) / 2;
+        for (Iterator iter = lines.iterator(); iter.hasNext(); ) {
+            LineInfo line = (LineInfo) iter.next();
+            curY += line.height;
+            float x = (getWidth() - line.width) / 2;
+            g.drawString(line.text, (int) x, (int) curY);
+        }
+    }
+}