EZRanger a wrapper class for a label, a rangeslider, and numberboxes

Inherits from: Object : EZGui

EZRanger is wrapper class which creates an (optional) StaticText, and a Slider plus a NumberBox. If the parent is nil, then EZRanger will create its own window. See EZGui more options.

Scrolling and Arrow Keys

EZRanger's number boxs scroll by default, using the step size of the ControlSpec. If the controlSpec's step is set to 0, or is not set, then the the stepping and scrolling will be guessed according to the minval and maxval values of the spec on creation of the view. Unlike the step variable of a regular NumberBox, controlSpec.step is also the smallest possible increment for the NumberBoxs. By default, the shift-key modifier will allow you to step by 100 x controlSpec.step , while the ctrl-key will give you 10x controlSpec.step. Since the alt-key would give you 0.1 of the minimum step, it is disabled by default, but you can change that by setting numberView.alt_step to any value you like. Accordingly you can customize the other modifiers to fit your needs. See NumberBox and Slider. This also effects the arrow keys for the slider.

See also: Slider, NumberBox, StaticText, CompositeView, EZGui

Creation / Class Methods

*new (parent, bounds, label, controlSpec, action, initVal, initAction, labelWidth, numberWidth,unitWidth,labelHeight, layout,gap)

parent - The parent view or window. If the parent is nil, then EZRanger will create its own Window, and place it conveniently on the screen if the bounds are a Point. If the bounds are a Rect, then the Rect determines the window bounds.

bounds - An instance of Rect or Point. Default value is 160@20.

label - The label. Default value is nil. If nil, then no StaticText is created.

controlSpec - The ControlSpec for scaling the value.

action - A Function called when the value changes. The function is passed the EZRanger instance as its argument.

initVal - An inistance of Array [lo, hi]. If nil, then it uses the ControlSpec's default value.

initAction - A Boolean indicating whether the action function should be called when setting the initial value. The default is false.

labelWidth - Number of pixels width for the label. default is 60..

numberWidth - Number of pixels width for the number box. default is 45.

unitWidth - Number of pixels width for the unit label. The default is 0. If 0, then no unitLabel is created

labelHeight- The default is 20;

layout- \vert \line2, or \horz. The default is \horz;

gap - A Point. By default, the view tries to get its parent's gap, otherwise it defaults to 2@2. Setting it overrides these.

margin - A Point. This will inset the bounds occupied by the subviews of view.

(

w=Window.new.front;

g=EZRanger(w, 400@16," test ", \freq,{|v| v.value.postln},[50,2000],unitWidth:30)

);

// Simplest version, no parent view, so a window is created

(

EZRanger(nil, 400@16," test ", \freq,{|v| v.value.postln},[50,2000])

);

The contained views can be accessed via the EZRanger instance variables:

rangeSlider, hiBox,loBox, unitView,labelView

Accessing Instance and Class Variables

unitView

The Units label. Only appears if unitWidth was set to >0

controlSpec_(arg1)

controlSpec

An instance of ControlSpec for scaling the values.

loBox

The lo value NumberBox

action

action_(arg1)

A function to be evaluated when the value changes. Te first argument will be the EZRanger.

arg1 - An instance of Function or FunctionList. Default value is nil.

rangeSlider

The RangeSlider View

lo

lo_ (val)

The low value

hi

lo_ (val)

The high value

hiBox

The hi value NumberBox

round_(arg1)

round

Rounds the values in the number boxes.

Doing Some Task (optional)

doAction

Performs the action at the current index and the global action.

value

value_ (vals)

Gets/sets the lo and hi values.

vals - An instance of Array: [ lo, hi ]

valueAction_ (vals)

Sets the value and performs the action at the index value and the global action.

vals - An instance of Array: [ lo, hi ]

;

Changing Appearance

setColors(stringBackground,stringColor,sliderColor,numBackground,

numStringColor,numNormalColor,numTypingColor,knobColor,background)

stringBackground - An instance of Color. The background of the label and unit views.

stringColor - An instance of Color. The stringColor of the label and unit views.

sliderColor - An instance of Color. The slider background.

numBackground - An instance of Color. The background of the number view.

numStringColor - An instance of Color. The stringColor of the number view.

numNormalColor - An instance of Color. The normalColor of the number view.

numTypingColor - An instance of Color. The typingColor of the number view.

knobColor - An instance of Color. The knobColor of the slider view.

background - An instance of Color. The backround of the enclosing view.

font_(font)

Set the Font used by all the views.

font - An instance of Font.

Examples

( // basic use

w=Window.new.front;

g=EZRanger(w, 400@16," test ", \freq,{|v| v.value.postln},[50,2000],unitWidth:30);

g.setColors(Color.grey,Color.white, Color.grey(0.7),Color.grey, Color.white, Color.yellow);

);

// lots of range sliders on a view

(

w=Window.new.front;

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

w.view.decorator.gap=1@1;

20.do{

g=EZRanger(w, 400@16," test ", \freq,{|v| v.value.postln},[50.rand,50+20000.rand],unitWidth:30)

.setColors(Color.grey,Color.white, Color.grey(0.7),Color.grey,Color.white, Color.white, Color.yellow)

.font_(Font("Helvetica",11));

};

);

Window.closeAll

/////////////////////////////////////////////////////////////////

////////// click these parentheses to see all features and layouts

(

m=nil;

m=2@2; // comment for no margin

/////////////////

/// Layout \horz

( // all features, small font

g=EZRanger(nil, 400@16," freq ", \freq,

initVal:[100.rand,200+2000.rand],unitWidth:30, numberWidth:60,layout:\horz, margin:2@2);

g.setColors(Color.grey,Color.white, Color.grey(0.7),

Color.grey, Color.white, Color.yellow, background:Color.grey(0.7),

knobColor: HiliteGradient(Color.grey, Color.white));

g.window.bounds = g.window.bounds.moveBy(-180,50);

g.font_(Font("Helvetica",10));

);

( // no unitView

g=EZRanger(nil, 400@16," freq ", \freq,initVal:[100.rand,200+2000.rand],

unitWidth:0, numberWidth:60,layout:\horz, margin:2@2);

g.setColors(Color.grey,Color.white, Color.grey(0.7),

Color.grey, Color.white, Color.yellow, background:Color.grey(0.7),

knobColor: HiliteGradient(Color.grey, Color.white));

g.window.bounds = g.window.bounds.moveBy(-180, -20);

g.font_(Font("Helvetica",10));

);

( // no label, so use window name as label

g=EZRanger(nil, 400@16, nil, \freq,initVal:[100.rand,200+2000.rand],

unitWidth:0, numberWidth:60,layout:\horz, margin:2@2);

g.setColors(Color.grey,Color.white, Color.grey(0.7),

Color.grey, Color.white, Color.yellow, background:Color.grey(0.7),

knobColor: HiliteGradient(Color.grey, Color.white));

g.window.bounds = g.window.bounds.moveBy(-180, -90);

g.window.name="Freq";

g.font_(Font("Helvetica",10));

);

/////////////////

/// Layout \line2

( // all features

g=EZRanger(nil, 300@42," freq ", \freq,initVal:[100.rand,200+2000.rand],

unitWidth:30, numberWidth:60,layout:\line2, margin:2@2);

g.setColors(Color.grey,Color.white, Color.grey(0.7),

Color.grey, Color.white, Color.yellow, background:Color.grey(0.7),

knobColor: HiliteGradient(Color.grey, Color.white));

g.window.bounds = g.window.bounds.moveBy(-180,-160);

);

( // no unitView, with label

g=EZRanger(nil, 300@42," freq ", \freq,initVal:[100.rand,200+2000.rand],

unitWidth:0, numberWidth:60,layout:\line2, margin:2@2);

g.setColors(Color.grey,Color.white, Color.grey(0.7),

Color.grey, Color.white, Color.yellow, background:Color.grey(0.7),

knobColor: HiliteGradient(Color.grey, Color.white));

g.window.bounds = g.window.bounds.moveBy(-180,-260);

);

( // no label

g=EZRanger(nil, 300@42,nil, \freq, initVal:[100.rand,200+2000.rand],

unitWidth:30, numberWidth:60,layout:\line2, margin:2@2);

g.setColors(Color.grey,Color.white, Color.grey(0.7),

Color.grey, Color.white, Color.yellow, background:Color.grey(0.7),

knobColor: HiliteGradient(Color.grey, Color.white));

g.window.bounds = g.window.bounds.moveBy(-180,-360);

g.window.name="Freq";

);

( // no label, so use window name as label

g=EZRanger(nil, 150@42,nil, \freq,initVal:[100.rand,200+2000.rand],

unitWidth:0, numberWidth:60,layout:\line2, margin:2@2);

g.setColors(Color.grey,Color.white, Color.grey(0.7),

Color.grey, Color.white, Color.yellow, background:Color.grey(0.7),

knobColor: HiliteGradient(Color.grey, Color.white));

g.window.bounds = g.window.bounds.moveBy(-180,-460);

g.window.name="Freq";

);

/////////////////

/// Layout \vert

( // all features, small font

g=EZRanger(nil, 45@300," Vol ", \db.asSpec.step_(0.01),initVal:[-3-15.rand,-2.rand],

unitWidth:30, numberWidth:60,layout:\vert, margin:2@2);

g.setColors(Color.grey,Color.white, Color.grey(0.7),

Color.grey, Color.white, Color.yellow, background:Color.grey(0.7),

knobColor: HiliteGradient(Color.grey, Color.white,\h));

g.window.bounds = g.window.bounds.moveBy(250,50);

g.font_(Font("Helvetica",9));

);

( // no label, small font

g=EZRanger(nil, 45@300, nil, \db.asSpec.step_(0.01),initVal:[-3-15.rand,-2.rand],

unitWidth:30, numberWidth:60,layout:\vert, margin:2@2);

g.setColors(Color.grey,Color.white, Color.grey(0.7),

Color.grey, Color.white, Color.yellow, background:Color.grey(0.7),

knobColor: HiliteGradient(Color.grey, Color.white,\h));

g.window.bounds = g.window.bounds.moveBy(310,50);

g.font_(Font("Helvetica",9));

);

( // no Units small font

g=EZRanger(nil, 45@300, " Vol", \db.asSpec.step_(0.01),initVal:[-3-15.rand,-2.rand],

unitWidth:0, numberWidth:60,layout:\vert, margin:2@2);

g.setColors(Color.grey,Color.white, Color.grey(0.7),

Color.grey, Color.white, Color.yellow, background:Color.grey(0.7),

knobColor: HiliteGradient(Color.grey, Color.white,\h));

g.window.bounds = g.window.bounds.moveBy(370,50);

g.font_(Font("Helvetica",9));

);

( // no unitView, no units small font

g=EZRanger(nil, 45@300, nil, \db.asSpec.step_(0.01),initVal:[-3-15.rand,-2.rand],

unitWidth:0, numberWidth:60,layout:\vert, margin:2@2);

g.setColors(Color.grey,Color.white, Color.grey(0.7),

Color.grey, Color.white, Color.yellow, background:Color.grey(0.7),

knobColor: HiliteGradient(Color.grey, Color.white,\h));

g.window.bounds = g.window.bounds.moveBy(430,50);

g.font_(Font("Helvetica",9));

);

)

/////////////////

////Sound Example

( // example to explore a synthesis idea:

p = ProxySpace.push(s.boot);

q = q ? ();

q.freqRange = [200, 2000];

q.ampRange = [0.1, 1];

q.ringRange = [0.1, 10];

q.numRange = [3, 30];

q.soundfunc = { |dens=5|

Splay.ar(

Array.fill(exprand(q.numRange[0], q.numRange[1]).asInteger, {

Ringz.ar(

Dust.ar(dens),

exprand(q.freqRange[0], q.freqRange[1]),

exprand(q.ringRange[0], q.ringRange[1]),

exprand(q.ampRange[0], q.ampRange[1])

)

})

).distort

};

)

~plong.play;

~plong.fadeTime = 3;

~plong = q[\soundfunc];

(

w = Window("cow herd").front;

w.view.decorator_(FlowLayout(w.bounds.copy.moveTo(0, 0)));

Spec.add(\ring, [0.03, 30, \exp]);

Spec.add(\num, [3, 30, \exp, 1]);

EZRanger(w, 390@20, "numRange", \num, { |sl| q.numRange = sl.value; }, labelWidth: 65)

.round_(1);

EZRanger(w, 390@20, "freqRange", \freq, { |sl| q.freqRange = sl.value; }, q.freqRange, labelWidth: 65)

.round_(0.1);

EZRanger(w, 390@20, "ringRange", \ring, { |sl| q.ringRange = sl.value; }, q.ringRange, labelWidth: 65)

.round_(0.0001);

EZRanger(w, 390@20, "ampRange", \amp, { |sl| q.ampRange = sl.value; }, q.ampRange, labelWidth: 65)

.round_(0.0001);

Button(w, 190@20).states_([[\newSound]]).action_({~plong = q[\soundfunc] });

)