Fix VST build.

[ardour.git] / libs / ardour / plugin.cc

diff --git a/libs/ardour/plugin.cc b/libs/ardour/plugin.cc
index 4971c57deb6171bb93f9cb2f8372fb37102afd9d..4fe51141f6b2238f25d1acec2fde742345e9e4a7 100644 (file)
--- a/libs/ardour/plugin.cc
+++ b/libs/ardour/plugin.cc
@@ -62,6 +62,8 @@ using namespace std;
 using namespace ARDOUR;
 using namespace PBD;
 
+PBD::Signal0<bool> Plugin::PresetFileExists;
+
 Plugin::Plugin (AudioEngine& e, Session& s)
        : _engine (e)
        , _session (s)
@@ -142,7 +144,7 @@ Plugin::get_presets()
 }
 
 bool
-Plugin::load_preset(const string preset_uri)
+Plugin::load_preset(const string& preset_uri)
 {
        lrdf_defaults* defs = lrdf_get_setting_values(preset_uri.c_str());
 
@@ -160,6 +162,109 @@ Plugin::load_preset(const string preset_uri)
        return true;
 }
 
+/* XXX: should be in liblrdf */
+static void
+lrdf_remove_preset (const char *source, const char *setting_uri)
+{
+       lrdf_statement p;
+       lrdf_statement *q;
+       lrdf_statement *i;
+       char setting_uri_copy[64];
+       char buf[64];
+       
+       strncpy(setting_uri_copy, setting_uri, sizeof(setting_uri_copy));
+
+       p.subject = setting_uri_copy;
+       strncpy(buf, LADSPA_BASE "hasPortValue", sizeof(buf));
+       p.predicate = buf;
+       p.object = NULL;
+       q = lrdf_matches(&p);
+
+       p.predicate = NULL;
+       p.object = NULL;
+       for (i = q; i; i = i->next) {
+               p.subject = i->object;
+               lrdf_remove_matches(&p);
+       }
+
+       lrdf_free_statements(q);
+
+       p.subject = NULL;
+       strncpy(buf, LADSPA_BASE "hasSetting", sizeof(buf));
+       p.predicate = buf;
+       p.object = setting_uri_copy;
+       lrdf_remove_matches(&p);
+
+       p.subject = setting_uri_copy;
+       p.predicate = NULL;
+       p.object = NULL;
+       lrdf_remove_matches (&p);
+}
+
+void
+Plugin::remove_preset (string name, string domain)
+{
+       string const envvar = preset_envvar ();
+       if (envvar.empty()) {
+               warning << _("Could not locate HOME.  Preset not removed.") << endmsg;
+               return;
+       }
+
+       Plugin::PresetRecord const * p = preset_by_label (name);
+       if (!p) {
+               return;
+       }
+       
+       string const source = preset_source (envvar, domain);
+       lrdf_remove_preset (source.c_str(), p->uri.c_str ());
+
+       presets.erase (p->uri);
+
+       write_preset_file (envvar, domain);
+}
+
+string
+Plugin::preset_envvar () const
+{
+       char* envvar;
+       if ((envvar = getenv ("HOME")) == 0) {
+               return "";
+       }
+       
+       return envvar;
+}
+
+string
+Plugin::preset_source (string envvar, string domain) const
+{
+       return string_compose ("file:%1/.%2/rdf/ardour-presets.n3", envvar, domain);
+}
+
+bool
+Plugin::write_preset_file (string envvar, string domain)
+{
+       string path = string_compose("%1/.%2", envvar, domain);
+       if (g_mkdir_with_parents (path.c_str(), 0775)) {
+               warning << string_compose(_("Could not create %1.  Preset not saved. (%2)"), path, strerror(errno)) << endmsg;
+               return false;
+       }
+
+       path += "/rdf";
+       if (g_mkdir_with_parents (path.c_str(), 0775)) {
+               warning << string_compose(_("Could not create %1.  Preset not saved. (%2)"), path, strerror(errno)) << endmsg;
+               return false;
+       }
+
+       string const source = preset_source (envvar, domain);
+
+       if (lrdf_export_by_source (source.c_str(), source.substr(5).c_str())) {
+               warning << string_compose(_("Error saving presets file %1."), source) << endmsg;
+               return false;
+       }
+
+       return true;
+}
+
 bool
 Plugin::save_preset (string name, string domain)
 {
@@ -189,13 +294,13 @@ Plugin::save_preset (string name, string domain)
                }
        }
 
-       char* envvar;
-       if ((envvar = getenv ("HOME")) == 0) {
+       string const envvar = preset_envvar ();
+       if (envvar.empty()) {
                warning << _("Could not locate HOME.  Preset not saved.") << endmsg;
                return false;
        }
 
-       string source(string_compose("file:%1/.%2/rdf/ardour-presets.n3", envvar, domain));
+       string const source = preset_source (envvar, domain);
 
        char* uri = lrdf_add_preset (source.c_str(), name.c_str(), id, &defaults);
        
@@ -204,24 +309,7 @@ Plugin::save_preset (string name, string domain)
        presets.insert (make_pair (uri, PresetRecord (uri, name)));
        free (uri);
 
-       string path = string_compose("%1/.%2", envvar, domain);
-       if (g_mkdir_with_parents (path.c_str(), 0775)) {
-               warning << string_compose(_("Could not create %1.  Preset not saved. (%2)"), path, strerror(errno)) << endmsg;
-               return false;
-       }
-
-       path += "/rdf";
-       if (g_mkdir_with_parents (path.c_str(), 0775)) {
-               warning << string_compose(_("Could not create %1.  Preset not saved. (%2)"), path, strerror(errno)) << endmsg;
-               return false;
-       }
-
-       if (lrdf_export_by_source(source.c_str(), source.substr(5).c_str())) {
-               warning << string_compose(_("Error saving presets file %1."), source) << endmsg;
-               return false;
-       }
-
-       return true;
+       return write_preset_file (envvar, domain);
 }
 
 PluginPtr