editor: set slider range correctly

Source/PluginEditor.cpp

@@ -15,6 +15,7 @@ PeteAudioProcessorEditor::PeteAudioProcessorEditor(PeteAudioProcessor& p)
         PeteLine(PeteLine::Vertical, 2./3.)
     };
     slider.setTextBoxStyle(Slider::NoTextBox, true, 0, 0);
+    slider.setRange(0.0, 1.0);
     slider.addListener(this);
     setSize(600, 600);
     slider.setLookAndFeel(gui);
@@ -28,7 +29,7 @@ PeteAudioProcessorEditor::~PeteAudioProcessorEditor()
 }
 
 void PeteAudioProcessorEditor::sliderValueChanged(Slider* s) {
-    processor.freq = slider.getValue();
+    processor.freq = s->getValue();
 }
 
 void PeteAudioProcessorEditor::paint(Graphics& g)