SuperCollider code to generate these elements

The full set of elements that are needed can be seen on this screenshot: GUI ELEMENTS

Here is the (most recent and up to date) code to generate that.

( w = SCWindow("SC Window", Rect(400, 64, 650, 750)).front;

w.view.decorator = FlowLayout(w.view.bounds);

SCStaticText(w, Rect(0, 0, 100, 20)).string_("Button").background_(Color.white);

w.view.decorator.shift(4,0);

a = SCButton(w, Rect(20,20, 60, 20)).states_("on",Color.black,Color.clear],["off",Color.black,Color.clear).action_({arg butt; butt.value.postln;});

w.view.decorator.nextLine; w.view.decorator.shift(0,4);

SCStaticText(w, Rect(0, 0, 60, 20)).string_("Slider").background_(Color.white);

w.view.decorator.shift(4,0);

b = SCSlider(w, Rect(20, 50, 60, 20)).action_({arg sl; sl.value.postln; });

w.view.decorator.shift(4,0);

e = SCSlider(w, Rect(90, 20, 20, 60)).value_(0.5).action_({arg sl; sl.value.postln; });

w.view.decorator.nextLine; w.view.decorator.shift(0,4);

SCStaticText(w, Rect(0, 0, 60, 20)).string_("2DSlider").background_(Color.white);

w.view.decorator.shift(4,0);

c = SC2DSlider(w, Rect(20, 80, 60, 60)).x_(0.2).y_(0.7).action_({arg sl; [\x, sl.x.value, \y, sl.y.value].postln; });

w.view.decorator.nextLine; w.view.decorator.shift(0,4);

SCStaticText(w, Rect(0, 0, 100, 20)).string_("RangeSlider").background_(Color.white);

w.view.decorator.shift(4,0);

d = SCRangeSlider(w, Rect(20, 150, 60, 20)).lo_(0.2).hi_(0.7).action_({arg sl; [\lo, sl.lo.value, \hi, sl.hi.value].postln; });

w.view.decorator.nextLine; w.view.decorator.shift(0,4);

SCStaticText(w, Rect(0, 0, 100, 20)).string_("NumberBox").background_(Color.white);

w.view.decorator.shift(4,0);

f = SCNumberBox(w, Rect(130, 20, 100, 20)).value_(67.92).action_({ arg numb; numb.value.postln; });

w.view.decorator.nextLine; w.view.decorator.shift(0,4);

SCStaticText(w, Rect(0, 0, 100, 20)).string_("StaticText").background_(Color.white);

w.view.decorator.shift(4,0);

g = SCStaticText(w, Rect(130, 50, 100, 20)).string_("some text").background_(Color.white);

w.view.decorator.nextLine; w.view.decorator.shift(0,4);

SCStaticText(w, Rect(0, 0, 100, 20)).string_("TextView").background_(Color.white);

w.view.decorator.shift(4,0);

g = SCTextView(w, Rect(0, 0, 400, 80)).background_(Color.white); g.hasVerticalScroller_(true).hasHorizontalScroller_(true).autohidesScrollers_(true); g.string_("To be, or not to be--that is the question: Whether 'tis nobler in the mind to suffer The slings and arrows of outrageous fortune Or to take arms against a sea of troubles And by opposing end them. To die, to sleep-- No more--and by a sleep to say we end The heartache, and the thousand natural shocks That flesh is heir to. 'Tis a consummation Devoutly to be wished. To die, to sleep-- To sleep--perchance to dream: ay, there's the rub, For in that sleep of death what dreams may come When we have shuffled off this mortal coil, Must give us pause. There's the respect That makes calamity of so long life. ");

w.view.decorator.nextLine; w.view.decorator.shift(0,4);

SCStaticText(w, Rect(0, 0, 100, 20)).string_("ListView").background_(Color.white);

w.view.decorator.shift(4,0);

h = SCListView(w,Rect(130, 80, 100, 50)).items_(["aaa","bbb", "ccc", "ddd", "eee", "fff"]).action_({ arg sbs; [sbs.value, sbs.item].postln; });

w.view.decorator.nextLine; w.view.decorator.shift(0,4);

SCStaticText(w, Rect(0, 0, 100, 20)).string_("MultiSliderView").background_(Color.white);

w.view.decorator.shift(4,0);

i = SCMultiSliderView(w, Rect(130, 150, 100, 50)).isFilled_(true).action_({arg xb; ("index: " ++ xb.index ++" value: " ++ xb.currentvalue).postln}).value_([0.1, 0.2, 0.3, 0.1, 0.2, 0.3, 0.1, 0.2, 0.3]);

w.view.decorator.nextLine; w.view.decorator.shift(0,4);

SCStaticText(w, Rect(0, 0, 100, 20)).string_("PopUpMenu").background_(Color.white);

w.view.decorator.shift(4,0);

j = SCPopUpMenu(w, Rect(20, 178, 100, 20)).items_(["one", "two", "three", "four", "five"]).action_({ arg sbs; sbs.value.postln; });

w.view.decorator.nextLine; w.view.decorator.shift(0,4);

SCStaticText(w, Rect(0, 0, 100, 20)).string_("EnvelopeView").background_(Color.white);

w.view.decorator.shift(4,0);

k = SCEnvelopeView(w, Rect(20, 220, 400, 80)).drawLines_(true).selectionColor_(Color.red).drawRects_(true).action_({arg b; [b.index,b.value].postln}) .thumbSize_(5).value_(0.0, 0.1, 0.5, 1.0],[0.1,1.0,0.8,0.0);

w.view.decorator.nextLine; w.view.decorator.shift(0,4);

SCStaticText(w, Rect(0, 0, 100, 20)).string_("LevelIndicator").background_(Color.white);

w.view.decorator.shift(4,0);

l = SCLevelIndicator(w, Rect(270, 10, 20, 60)) .drawsPeak_(true).peakLevel_(0.6).value_(0.8);

w.view.decorator.nextLine; w.view.decorator.shift(0,4);

SCStaticText(w, Rect(0, 0, 100, 20)).string_("Knob").background_(Color.white);

w.view.decorator.shift(4,0);

n = SCKnob(w, Rect(270, 190, 40, 40)).value_(0.5).action_({arg sl; sl.value.postln; });

w.view.decorator.nextLine; w.view.decorator.shift(0,4);

SCStaticText(w, Rect(0, 0, 100, 20)).string_("SoundFileView").background_(Color.white);

w.view.decorator.shift(4,0);

q = SCSoundFileView(w, Rect(20,20, 400, 60));

x = SoundFile.new;

x.openRead("sounds/a11wlk01.wav");

q.soundfile = x;

q.read(0, x.numFrames);

q.setSelection (0, [ 10000, 70000 ]); )