Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.utils.ui / src / org / simantics / utils / ui / gfx / clipboard / streams / RemoveBitmapHeaderOutputStream.java

diff --git a/bundles/org.simantics.utils.ui/src/org/simantics/utils/ui/gfx/clipboard/streams/RemoveBitmapHeaderOutputStream.java b/bundles/org.simantics.utils.ui/src/org/simantics/utils/ui/gfx/clipboard/streams/RemoveBitmapHeaderOutputStream.java
new file mode 100644 (file)
index 0000000..7102557
--- /dev/null
+++ b/bundles/org.simantics.utils.ui/src/org/simantics/utils/ui/gfx/clipboard/streams/RemoveBitmapHeaderOutputStream.java
@@ -0,0 +1,65 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.utils.ui.gfx.clipboard.streams;\r
+\r
+import java.io.IOException;\r
+import java.io.OutputStream;\r
+\r
+import org.simantics.utils.ui.gfx.clipboard.headers.BitmapFileHeader;\r
+\r
+\r
+/**\r
+ * Removes WIN32 API BITMAPFILEHEADER from the beginning of stream\r
+ * \r
+ * @author Marko Luukkainen\r
+ *\r
+ */\r
+public class RemoveBitmapHeaderOutputStream extends OutputStream{\r
+    private OutputStream oStream;\r
+    private int byteCount = 0;\r
+    \r
+    public RemoveBitmapHeaderOutputStream(OutputStream oStream) {\r
+        this.oStream = oStream;\r
+    }\r
+    \r
+    @Override\r
+    public void write(byte[] b) throws IOException {\r
+        if (byteCount >= BitmapFileHeader.sizeof) {\r
+            super.write(b);\r
+        } else if (b.length >= BitmapFileHeader.sizeof - byteCount){\r
+            byte[] newArray = new byte[b.length - BitmapFileHeader.sizeof + byteCount];\r
+            System.arraycopy(b, BitmapFileHeader.sizeof - byteCount, newArray, 0, newArray.length);\r
+            byteCount = BitmapFileHeader.sizeof;\r
+            super.write(newArray);    \r
+        } else {\r
+            byteCount+= b.length;\r
+        }\r
+        super.write(b);\r
+    }\r
+    \r
+    @Override\r
+    public void write(byte[] b, int off, int len) throws IOException {\r
+        if (byteCount >= BitmapFileHeader.sizeof)\r
+            super.write(b, off, len);\r
+        else\r
+            throw new IOException("Operation not supported, cannot remove header"); \r
+    }\r
+    \r
+    @Override\r
+    public void write(int b) throws IOException {\r
+        if (byteCount >= BitmapFileHeader.sizeof) {\r
+            oStream.write(b);\r
+        } else {\r
+            byteCount++;\r
+        }\r
+    }\r
+}\r