[specimen] PATCH: save master volume

[Juuso Alasuutari]

Here's a patch for saving and loading the master volume with the bank. It adds 
a child node called "master" to the XML data, which in turn contains a node 
called "volume" for storing the value. (It might come in handy to save other 
master settings later on, which is why I didn't implement a single node 
called master_volume.)

This patch doesn't interact with the GUI, so for this to be usable the master 
section needs to be refreshed after loading a patch. When the patch is loaded 
the master volume is adjusted accordingly, but the slider stays as-is. I hope 
someone who knows GTK+2 can help implement the refreshing, I myself have no 
clue whatsoever how to do it.


BEGIN PATCH------------------------------------------------------------
--- src/beef.c~	2007-08-31 21:34:46.000000000 +0300
+++ src/beef.c	2007-08-31 21:34:53.000000000 +0300
@@ -5,6 +5,7 @@
 #include <glib.h>
 #include "specimen.h"
 #include "patch.h"
+#include "mixer.h"
 
 int beef_write (char *name)
 {
@@ -19,6 +20,7 @@
     int i, j, count;
     xmlDocPtr doc;
     xmlNodePtr rootnode;
+    xmlNodePtr xmlmaster;
     xmlNodePtr xmlpatch;
 
 #define NR_OF_PPT 5
@@ -40,6 +42,12 @@
     rootnode = xmlNewDocNode (doc, NULL, (const xmlChar *) "beef", NULL);
     xmlDocSetRootElement (doc, rootnode);
 
+    xmlmaster = xmlNewTextChild (rootnode, NULL, (const xmlChar *) "master",
+                                 NULL);
+    sprintf (tmp, "%f", mixer_get_volume ());
+    xmlNewTextChild (xmlmaster, NULL, (const xmlChar *) "volume",
+                     (const xmlChar *) tmp);
+
     /* walk the walk */
     count = patch_dump (&id);
     for (i = 0; i < count; i++)
@@ -338,7 +346,7 @@
 {
     xmlDocPtr doc;
     xmlNodePtr rootnode;
-    xmlNodePtr xmlpatch;
+    xmlNodePtr childnode;
     xmlNodePtr cur;
     xmlChar *key;
     int id;
@@ -369,16 +377,32 @@
 
 
     patch_destroy_all ( );
-    for (xmlpatch = rootnode->xmlChildrenNode; xmlpatch != NULL;
-	 xmlpatch = xmlpatch->next)
+    for (childnode = rootnode->xmlChildrenNode; childnode != NULL;
+	 childnode = childnode->next)
     {
 
 	key = NULL;
-	if (!xmlStrcmp (xmlpatch->name, (const xmlChar *) "patch"))
+	if (!xmlStrcmp (childnode->name, (const xmlChar *) "master"))
+	{
+	    for (cur = childnode->xmlChildrenNode; cur != NULL;
+		 cur = cur->next)
+	    {
+		if (!xmlStrcmp (cur->name, (const xmlChar *) "volume"))
+		{
+		    key =
+			xmlNodeListGetString (doc, cur->xmlChildrenNode,
+					      1);
+		    mixer_set_volume (atof ((const char *) key));
+		}
+	    }
+	}
+
+	key = NULL;
+	if (!xmlStrcmp (childnode->name, (const xmlChar *) "patch"))
 	{
 	    id = patch_create ("Loading...");
 
-	    for (cur = xmlpatch->xmlChildrenNode; cur != NULL;
+	    for (cur = childnode->xmlChildrenNode; cur != NULL;
 		 cur = cur->next)
 	    {
 		if (!xmlStrcmp (cur->name, (const xmlChar *) "name"))
END PATCH--------------------------------------------------------------

-- 
        Juuso Alasuutari
[[ Source Mage GNU/Linux ]]

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