loading empty samples is not done anymore

src/dsp/node_sampl.rs

@@ -20,11 +20,11 @@ impl Sampl {
         }
     }
     pub const freq : &'static str =
-        "Sampl freq\nPitch input for the sampler, giving the playback speed of the\
+        "Sampl freq\nPitch input for the sampler, giving the playback speed of the \
         sample.\nRange: (-1..1)\n";
 
     pub const trig : &'static str =
-        "Sampl trig\nThe trigger input causes a resync of the playback phase\
+        "Sampl trig\nThe trigger input causes a resync of the playback phase \
          and triggers the playback if the 'pmode' is 'OneShot'";
     pub const spos : &'static str =
         "Sampl spos\nStart position offset.\nRange: (-1..1)\n";
@@ -36,13 +36,13 @@ impl Sampl {
 
     pub const pmode : &'static str =
         "Sampl pmode\nThe playback mode of the sampler.\n\
-        - 'Loop' constantly plays back the sample. You can reset/sync the phase\
+        - 'Loop' constantly plays back the sample. You can reset/sync the phase \
         using the 'trig' input in this case.\n\
         - 'OneShot' plays back the sample if a trigger is received on 'trig' input.\n";
     pub const dclick : &'static str =
-        "Sampl dclick\nIf this is enabled and the 'pmode' is 'OneShot'\
+        "Sampl dclick\nIf this is enabled and the 'pmode' is 'OneShot' \
          this will enable short fade in and out ramps.\n\
-         This if useful if you don't want to add an envelope just for\
+         This if useful if you don't want to add an envelope just for \
          getting rid of the clicks if spos and epos are modulated.";
 
     pub const sig : &'static str =

src/nodes/node_conf.rs

@@ -308,15 +308,20 @@ impl NodeConfigurator {
         if param.is_atom() {
             let at =
                 if let SAtom::AudioSample((path, None)) = at.clone() {
-                    match self.sample_lib.load(&path) {
-                        Ok(sample) => sample.clone(),
-                        Err(e) => {
-                            self.errors.push(
-                                format!(
-                                    "Couldn't load sample '{}': {:?}",
-                                    path, e));
-                            at
-                        },
+                    if path.len() > 0 {
+                        match self.sample_lib.load(&path) {
+                            Ok(sample) => sample.clone(),
+                            Err(e) => {
+                                self.errors.push(
+                                    format!(
+                                        "Sample Loading Error\n\
+                                        Couldn't load sample '{}':\n{:?}",
+                                        path, e));
+                                at
+                            },
+                        }
+                    } else {
+                        at
                     }
                 } else {
                     at