[SCM] calf/master: + JACK host: implemented Save/Save as...; Open not implemented yet - who could possibly want THAT?

[js at users.alioth.debian.org]

The following commit has been merged in the master branch:
commit 469351c1d54736275523ab131b30dfba09dd9b4d
Author: Krzysztof Foltman <wdev at foltman.com>
Date:   Tue Dec 29 00:20:30 2009 +0000

    + JACK host: implemented Save/Save as...; Open not implemented yet - who could possibly want THAT?

diff --git a/src/calf/utils.h b/src/calf/utils.h
index 406c71e..ecb9105 100644
--- a/src/calf/utils.h
+++ b/src/calf/utils.h
@@ -147,6 +147,9 @@ extern std::string f2s(double value);
 /// float-to-string-that-doesn't-resemble-an-int
 extern std::string ff2s(double value);
 
+/// Encode a key-value pair as XML attribute
+std::string to_xml_attr(const std::string &key, const std::string &value);
+
 /// Escape a string to be used in XML file
 std::string xml_escape(const std::string &src);
 
diff --git a/src/jackhost.cpp b/src/jackhost.cpp
index cd9b395..30f84e8 100644
--- a/src/jackhost.cpp
+++ b/src/jackhost.cpp
@@ -235,8 +235,8 @@ struct host_session: public main_window_owner_iface, public calf_plugins::progre
     
     /// Implementation of open file functionality (TODO)
     virtual const char *open_file(const char *name) { return "Not implemented yet"; }
-    /// Implementation of save file functionality (TODO)
-    virtual const char *save_file(const char *name) { return "Not implemented yet"; }
+    /// Implementation of save file functionality
+    virtual const char *save_file(const char *name);
 };
 
 host_session::host_session()
@@ -514,8 +514,6 @@ void host_session::close()
     client.close();
 }
 
-#if USE_LASH
-
 static string stripfmt(string x)
 {
     if (x.length() < 2)
@@ -525,6 +523,48 @@ static string stripfmt(string x)
     return x.substr(0, x.length() - 2);
 }
 
+const char *host_session::save_file(const char *name)
+{
+    string i_name = stripfmt(client.input_name);
+    string o_name = stripfmt(client.output_name);
+    string m_name = stripfmt(client.midi_name);
+    string data;
+    data = "<?xml version=\"1.1\" encoding=\"utf-8\">\n";
+    data = "<rack>\n";
+    for (unsigned int i = 0; i < plugins.size(); i++) {
+        jack_host_base *p = plugins[i];
+        plugin_preset preset;
+        preset.plugin = p->get_id();
+        preset.get_from(p);
+        data += "<plugin";
+        data += to_xml_attr("type", preset.plugin);
+        data += to_xml_attr("instance-name", p->instance_name);
+        if (p->get_input_count())
+            data += to_xml_attr("input-index", p->get_inputs()[0].name.substr(i_name.length()));
+        if (p->get_output_count())
+            data += to_xml_attr("output-index", p->get_outputs()[0].name.substr(o_name.length()));
+        if (p->get_midi_port())
+            data += to_xml_attr("midi-index", p->get_midi_port()->name.substr(m_name.length()));
+        data += ">\n";
+        data += preset.to_xml();
+        data += "</plugin>\n";
+    }
+    data += "</rack>\n";
+    FILE *f = fopen(name, "w");
+    if (!f || 1 != fwrite(data.c_str(), data.length(), 1, f))
+    {
+        int e = errno;
+        fclose(f);
+        return strerror(e);
+    }
+    if (fclose(f))
+        return strerror(errno);
+    
+    return NULL;
+}
+
+#if USE_LASH
+
 # if !USE_LASH_0_6
 
 void host_session::update_lash()
diff --git a/src/utils.cpp b/src/utils.cpp
index 6bbff27..d2dc9ab 100644
--- a/src/utils.cpp
+++ b/src/utils.cpp
@@ -70,6 +70,11 @@ std::string xml_escape(const std::string &src)
     return dest;
 }
 
+std::string to_xml_attr(const std::string &key, const std::string &value)
+{
+    return " " + key + "=\"" + xml_escape(value) + "\"";
+}
+
 std::string load_file(const std::string &src)
 {
     std::string str;

-- 
calf audio plugins packaging