A view that allows setting a numerical value by means of moving a sliding handle. It can have horizontal or vertical orientation, meaning the direction in which the handle moves.
When a new Slider is created, its -orientation is determined by the initial size: if it is wider than high, the orientation will be horizontal, otherwise it will be vertical.
Numerical value between 0 and 1, represented by the handle position within the groove.
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A Float. |
The orientation of the Slider - the direction in which the handle moves. The default value depends on the size of the view when created.
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One of the two Symbols: \horizontal or \vertical. |
The size of the handle - its width or height, depending on -orientation.
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An Integer amount of pixels. |
The color of the handle.
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A Color. |
The amount by which the value will changed when -increment or -decrement is called, or when related keys are pressed.
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A Float. |
The absolute amount by which the value would change if the handle moved by one pixel.
A Float.
The factor by which -step is multiplied when incrementing or decrementing the value by keyboard while the Shift key is pressed.
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A Float. |
The factor by which -step is multiplied when incrementing or decrementing the value by keyboard while the Ctrl key is pressed.
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A Float. |
The factor by which -step is multiplied when incrementing or decrementing the value by keyboard while the Alt key is pressed.
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A Float. |
The action object evaluated whenever the user moves the handle.
Implements the default effects of key presses as follows:
| Key | Effect |
| r | valueAction_(1.0.rand) |
| n | valueAction_(0) |
| x | valueAction_(1) |
| c | valueAction_(0.5) |
| ] | increment |
| [ | decrement |
| up arrow | increment |
| down arrow | decrement |
| right arrow | increment |
| left arrow | decrement |
The -value.
True if the current drag data is a number.
Sets -valueAction to the current drag data.
(w = Window.new.front;c = NumberBox(w, Rect(20, 20, 150, 20));a = Slider(w, Rect(20, 60, 150, 20)) .action_({ c.value_(a.value) });a.action.value;)( // change the bounds to become verticalw = Window.new.front;c = NumberBox(w, Rect(20, 20, 150, 20));a = Slider(w, Rect(200, 60, 20, 150)) .action_({ c.value_(a.value) });a.action.value;)xxxxxxxxxx(w = Window.new.front;b = ControlSpec(-50, 50, \linear, 0.01); // min, max, mapping, stepc = StaticText(w, Rect(20, 20, 150, 20)).align_(\center).background_(Color.rand);a = Slider(w, Rect(20, 50, 150, 20)) .focusColor_(Color.red(alpha:0.2)) .background_(Color.rand) .value_(0.5) .action_({ c.string_(b.map(a.value).asString) // round the float so it will fit in the NumberBox });a.action.value;)xxxxxxxxxx(w = Window.new.front;a = ["0", "0.0625", "0.125", "0.25", "0.5", "1"];b = Slider(w, Rect(20, 100, 100, 20)) .action_({ c.value_(b.value) }).background_(Color.rand);d = PopUpMenu(w, Rect(20, 60, 100, 20)) .items_(a) .action_({ b.step_((a.at(d.value)).asFloat); });StaticText(w, Rect(130, 60, 100, 20)).string_("change step");c = NumberBox(w, Rect(20, 20, 100, 20));)xxxxxxxxxx( // select the slider, type something and watch the post windoww = Window.new;c = Slider(w, Rect(0,0,100,30));c.keyDownAction = { |view, char, modifiers, unicode, keycode| [char, modifiers, unicode, keycode].postln};w.front;)This is useful for adding things to existing frameworks that have action functions already.
xxxxxxxxxx(w = Window.new("A Slider");a = Slider.new(w, Rect(40, 10, 300, 30));w.front);// now incrementally add some action to the slidera.addAction({ |sl| sl.value.postln });a.addAction({ |sl| w.view.background = Color.green(sl.value) });a.addAction({ |sl| sl.background = Color.red(1 - sl.value) });// adding and removing an action:f = { |sl| "--------*******-------".postln; };a.addAction(f);a.removeAction(f);// or remove all, of coursea.action = nil;xxxxxxxxxx(s.waitForBoot({ SynthDef(\pluck, { |out, freq=55| Out.ar(out, Pluck.ar(WhiteNoise.ar(0.06), EnvGen.kr(Env.perc(0,4), 1.0, doneAction: Done.freeSelf), freq.reciprocal, freq.reciprocal, 10, coef:0.1) ); }).add; w = Window.new("Hold arrow keys to trigger sound", Rect(300, Window.screenBounds.height - 300, 400, 100)).front; a = Slider(w, Rect(50, 20, 300, 40)).value_(0.5).step_(0.05).focus .action_({ // trigger a synth with varying frequencies Synth(\pluck, [\freq, 55 + (1100 * a.value)]); w.view.background_(Gradient(Color.rand,Color.rand)); })});)xxxxxxxxxx(w = Window("RGB fader", Rect(100, 500, 400, 400)) .front;f = { w.view.background_(Color.new(r.value, g.value, b.value, 1)) };r = Slider(w, Rect(100, 140, 200, 20)) .value_(0.5) .action_({ f.value });g = Slider(w, Rect(100, 170, 200, 20)) .value_(0.5) .action_({ f.value });b = Slider(w, Rect(100, 200, 200, 20)) .value_(0.5) .action_({ f.value });f.value;);