--- /dev/null
+#ifndef FAUST_UI_H
+#define FAUST_UI_H
+
+
+/*******************************************************************************
+ * UI : Faust User Interface
+ * This abstract class contains only the method that the faust compiler can
+ * generate to describe a DSP interface.
+ ******************************************************************************/
+
+class UI
+{
+
+ public:
+
+ UI() { }
+
+ virtual ~UI() { }
+
+ // -- widget's layouts
+
+ virtual void openFrameBox(const char* label) = 0;
+ virtual void openTabBox(const char* label) = 0;
+ virtual void openHorizontalBox(const char* label) = 0;
+ virtual void openVerticalBox(const char* label) = 0;
+ virtual void closeBox() = 0;
+
+ // -- active widgets
+
+ virtual void addButton(const char* label, float* zone) = 0;
+ virtual void addToggleButton(const char* label, float* zone) = 0;
+ virtual void addCheckButton(const char* label, float* zone) = 0;
+ virtual void addVerticalSlider(const char* label, float* zone, float init, float min, float max, float step) = 0;
+ virtual void addHorizontalSlider(const char* label, float* zone, float init, float min, float max, float step) = 0;
+ virtual void addNumEntry(const char* label, float* zone, float init, float min, float max, float step) = 0;
+
+ // -- passive widgets
+
+ virtual void addNumDisplay(const char* label, float* zone, int precision) = 0;
+ virtual void addTextDisplay(const char* label, float* zone, const char* names[], float min, float max) = 0;
+ virtual void addHorizontalBargraph(const char* label, float* zone, float min, float max) = 0;
+ virtual void addVerticalBargraph(const char* label, float* zone, float min, float max) = 0;
+
+ // -- metadata declarations
+
+ virtual void declare(float* , const char* , const char* ) {}
+};
+
+#endif