Introduced "ignored namespaces" list on FopFactory. Attributes from ignored namespaces are not complained about. Not done for elements, yet.

Added support for foreign attributes (attributes in a non-FO namespace) on formatting objects, for example to specify additional (proprietary) hints for rendering i-f-o and e-g. First usage example is PCLRendererContext which the PCLGraphics2DAdapter uses to decide whether to paint natively using HP GL/2 or using a bitmap.

PCL Renderer revived: Basic framework constructed based on the old one. Still incomplete (no border painting, incomplete Graphics2D implementation, problems with reference orientation, no kerning etc.). The PCL Renderer implements PCL5 (monochrome) and HP GL/2. Work in progress!
Added UnitConv helper class which could also be useful elsewhere (Could be a candidate for Commons).

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@397806 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 43 insertions, 0 deletions

diff --git a/src/sandbox/org/apache/fop/render/pcl/MonochromeBitmapConverter.java b/src/sandbox/org/apache/fop/render/pcl/MonochromeBitmapConverter.java
new file mode 100644
index 000000000..f2db9d798
--- /dev/null
+++ b/src/sandbox/org/apache/fop/render/pcl/MonochromeBitmapConverter.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2006 The Apache Software Foundation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* $Id$ */
+
+package org.apache.fop.render.pcl;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.RenderedImage;
+
+/**
+ * Interface for converters that convert grayscale images to monochrome (1-bit) bitmap images.
+ */
+public interface MonochromeBitmapConverter {
+
+    /**
+     * Sets a hint to the implementation
+     * @param name the name of the hint
+     * @param value the value
+     */
+    void setHint(String name, String value);
+    
+    /**
+     * Converts a grayscale bitmap image to a monochrome (1-bit) b/w bitmap image. 
+     * @param img the grayscale image
+     * @return the converted monochrome image
+     */
+    RenderedImage convertToMonochrome(BufferedImage img);
+    
+}