Improve buf<-->xml doc conversion

(bzr r5316)

2 files changed, 105 insertions, 22 deletions

diff --git a/src/bind/java/org/inkscape/cmn/Gateway.java b/src/bind/java/org/inkscape/cmn/Gateway.java
index bba9cdf0b..d1fa47a2b 100644
--- a/src/bind/java/org/inkscape/cmn/Gateway.java
+++ b/src/bind/java/org/inkscape/cmn/Gateway.java
@@ -31,11 +31,18 @@ import java.io.OutputStream;
 import java.io.IOException;
 import javax.swing.JOptionPane;
 
-//for xml
+//####for xml
+//read
 import org.w3c.dom.Document;
 import java.io.ByteArrayInputStream;
 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
+//write
+import java.io.ByteArrayOutputStream;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.dom.DOMSource;
+import javax.xml.transform.stream.StreamResult;
 
 import org.inkscape.script.ScriptConsole;
 
@@ -56,33 +63,43 @@ long backPtr;
 //########################################################################
 //# MESSSAGES
 //########################################################################
-static void err(String message)
+void err(String message)
 {
-    System.err.println("Gateway err:" + message);
+    ScriptConsole console = ScriptConsole.getInstance();
+    if (console != null)
+        console.err("Gateway err:" + message);
+    else
+        log("Gateway err:" + message);
 }
 
-static void msg(String message)
+void msg(String message)
 {
-    System.out.println("Gateway:" + message);
+    ScriptConsole console = ScriptConsole.getInstance();
+    if (console != null)
+        console.msg("Gateway err:" + message);
+    else
+        log("Gateway:" + message);
 }
 
-
+void trace(String message)
+{
+    ScriptConsole console = ScriptConsole.getInstance();
+    if (console != null)
+        console.trace("Gateway:" + message);
+    else
+        log("Gateway:" + message);
+}
 
 
 //########################################################################
-//# R E P R  (inkscape's xml tree)
+//# U T I L I T Y
 //########################################################################
 
-private native String documentGet(long backPtr);
-
-public String documentGet()
-{
-    return documentGet(backPtr);
-}
-
-public Document documentGetXml()
+/**
+ * Parse a String to an XML Document
+ */ 
+public Document stringToDoc(String xmlStr)
 {
-    String xmlStr = documentGet();
     if (xmlStr == null || xmlStr.length()==0)
         return null;
     Document doc = null;
@@ -94,19 +111,78 @@ public Document documentGetXml()
         }
     catch (java.io.IOException e)
         {
-        err("getReprXml:" + e);
+        err("stringToDoc:" + e);
+        return null;
 		}
     catch (javax.xml.parsers.ParserConfigurationException e)
         {
-        err("getReprXml:" + e);
+        err("stringToDoc:" + e);
+        return null;
 		}
     catch (org.xml.sax.SAXException e)
         {
-        err("getReprXml:" + e);        
+        err("stringToDoc:" + e);        
+        return null;
 		}
     return doc;
 }
 
+
+
+/**
+ * Serialize an XML Document to a string
+ */ 
+String docToString(Document doc)
+{
+    if (doc == null)
+        return "";
+    String buf = "";
+    try
+        {
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        TransformerFactory factory = TransformerFactory.newInstance();
+        Transformer tf = factory.newTransformer();
+        tf.transform(new DOMSource(doc), new StreamResult(baos));
+        baos.close();
+        buf = baos.toString();
+        }
+    catch (java.io.IOException e)
+        {
+        err("docToString:" + e);
+        return null;
+		}
+    catch (javax.xml.transform.TransformerConfigurationException e)
+        {
+        err("docToString:" + e);
+        return null;
+		}
+    catch (javax.xml.transform.TransformerException e)
+        {
+        err("docToString:" + e);        
+        return null;
+		}
+    return buf;
+}
+
+
+//########################################################################
+//# R E P R  (inkscape's xml tree)
+//########################################################################
+
+private native String documentGet(long backPtr);
+
+public String documentGet()
+{
+    return documentGet(backPtr);
+}
+
+
+public Document documentGetXml()
+{
+    String xmlStr = documentGet();
+    return stringToDoc(xmlStr);
+}
+
 private native boolean documentSet(long backPtr, String xmlStr);
 
 public boolean documentSet(String xmlStr)
@@ -114,6 +190,13 @@ public boolean documentSet(String xmlStr)
     return documentSet(backPtr, xmlStr);
 }
 
+public boolean documentSetXml(Document doc)
+{
+    String xmlStr = docToString(doc);
+    return documentSet(xmlStr);
+}
+
+
 //########################################################################
 //# LOGGING STREAM
 //########################################################################
diff --git a/src/bind/java/org/inkscape/script/ScriptConsole.java b/src/bind/java/org/inkscape/script/ScriptConsole.java
index c7d71b575..8241e2797 100644
--- a/src/bind/java/org/inkscape/script/ScriptConsole.java
+++ b/src/bind/java/org/inkscape/script/ScriptConsole.java
@@ -78,17 +78,17 @@ JComboBox   engineBox;
 //########################################################################
 //# MESSSAGES
 //########################################################################
-void err(String fmt, Object... arguments)
+public void err(String fmt, Object... arguments)
 {
     terminal.errorf("ScriptConsole err:" + fmt + "\n", arguments);
 }
 
-void msg(String fmt, Object... arguments)
+public void msg(String fmt, Object... arguments)
 {
     terminal.outputf("ScriptConsole:" + fmt, arguments);
 }
 
-void trace(String fmt, Object... arguments)
+public void trace(String fmt, Object... arguments)
 {
     terminal.outputf("ScriptConsole:" + fmt + "\n", arguments);
 }