Core now moved to common.

2026-05-21 00:00:01 -04:00 · 2009-11-08 19:01:36 +01:00
parent e0a6c0a2bd
commit 7167a7a4ad
36 changed files with 36 additions and 223 deletions
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2008, Harald Kuhr
+ * 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 "TwelveMonkeys" 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 com.twelvemonkeys.image;
+
+import java.awt.image.ImageProducer;
+import java.awt.image.ImageConsumer;
+import java.util.List;
+import java.util.ArrayList;
+
+/**
+ * AbstractImageSource
+ * <p/>
+ *
+ * @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
+ * @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-core/src/main/java/com/twelvemonkeys/image/AbstractImageSource.java#1 $
+ */
+public abstract class AbstractImageSource implements ImageProducer {
+    private List<ImageConsumer> mConsumers = new ArrayList<ImageConsumer>();
+    protected int mWidth;
+    protected int mHeight;
+    protected int mXOff;
+    protected int mYOff;
+
+    // ImageProducer interface
+    public void addConsumer(ImageConsumer pConsumer) {
+        if (mConsumers.contains(pConsumer)) {
+            return;
+        }
+        mConsumers.add(pConsumer);
+        try {
+            initConsumer(pConsumer);
+            sendPixels(pConsumer);
+            if (isConsumer(pConsumer)) {
+                pConsumer.imageComplete(ImageConsumer.STATICIMAGEDONE);
+
+                // Get rid of "sticky" consumers...
+                if (isConsumer(pConsumer)) {
+                    pConsumer.imageComplete(ImageConsumer.IMAGEERROR);
+                    removeConsumer(pConsumer);
+                }
+            }
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+            if (isConsumer(pConsumer)) {
+                pConsumer.imageComplete(ImageConsumer.IMAGEERROR);
+            }
+        }
+    }
+
+    public void removeConsumer(ImageConsumer pConsumer) {
+        mConsumers.remove(pConsumer);
+    }
+
+    /**
+     * This implementation silently ignores this instruction. If pixeldata is
+     * not in TDLR order by default, subclasses must override this method.
+     *
+     * @param pConsumer the consumer that requested the resend
+     *
+     * @see ImageProducer#requestTopDownLeftRightResend(java.awt.image.ImageConsumer)
+     */
+    public void requestTopDownLeftRightResend(ImageConsumer pConsumer) {
+        // ignore
+    }
+
+    public void startProduction(ImageConsumer pConsumer) {
+        addConsumer(pConsumer);
+    }
+
+    public boolean isConsumer(ImageConsumer pConsumer) {
+        return mConsumers.contains(pConsumer);
+    }
+
+    protected abstract void initConsumer(ImageConsumer pConsumer);
+
+    protected abstract void sendPixels(ImageConsumer pConsumer);
+}