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EZKnob : EZGui {
classvar <>compactRatio=0.87;
var <knobView, <numberView, <unitView, <>controlSpec, knobSize, unitWidth;
var <>round = 0.001;
*new { arg parent, bounds, label, controlSpec, action, initVal,
initAction=false, labelWidth=60, knobSize,
unitWidth=0, labelHeight=20, layout=\vert, gap, margin;
^super.new.init(parent, bounds, label, controlSpec, action,
initVal, initAction, labelWidth, knobSize,
unitWidth, labelHeight, layout, gap, margin)
}
init { arg parentView, bounds, label, argControlSpec, argAction, initVal,
initAction, labelWidth, argKnobSize,argUnitWidth,
labelHeight, argLayout, argGap, argMargin;
var labelBounds, numBounds, unitBounds,knobBounds;
var numberStep;
// Set Margin and Gap
this.prMakeMarginGap(parentView, argMargin, argGap);
unitWidth = argUnitWidth;
layout=argLayout;
bounds.isNil.if{bounds = 50@90};
knobSize = argKnobSize ;
// if no parent, then pop up window
# view,bounds = this.prMakeView( parentView,bounds);
labelSize=labelWidth@labelHeight;
// calculate bounds of all subviews
# labelBounds,numBounds,knobBounds, unitBounds
= this.prSubViewBounds(innerBounds, label.notNil, unitWidth>0);
// instert the views
label.notNil.if{ //only add a label if desired
labelView = StaticText.new(view, labelBounds);
labelView.string = label;
};
(unitWidth>0).if{ //only add a unitLabel if desired
unitView = StaticText.new(view, unitBounds);
};
knobView = Knob.new(view, knobBounds);
numberView = NumberBox.new(view, numBounds);
// set view parameters and actions
controlSpec = argControlSpec.asSpec;
(unitWidth>0).if{unitView.string = " "++controlSpec.units.asString};
initVal = initVal ? controlSpec.default;
action = argAction;
numberStep = controlSpec.step;
if (numberStep == 0) {
numberStep = controlSpec.guessNumberStep
}{
// controlSpec wants a step, so zooming in with alt is disabled.
numberView.alt_scale = 1.0;
knobView.alt_scale = 1.0;
};
numberView.step = numberStep;
numberView.scroll_step = numberStep;
if((controlSpec.minval + controlSpec.maxval)==0){knobView.centered=true};
knobView.action = {
this.valueActionIfChanged_(controlSpec.map(knobView.value));
};
if (controlSpec.step != 0) {
knobView.step = (controlSpec.step / (controlSpec.maxval - controlSpec.minval));
};
knobView.receiveDragHandler = { arg slider;
slider.valueAction = controlSpec.unmap(View.currentDrag);
};
knobView.beginDragAction = { arg slider;
controlSpec.map(slider.value)
};
numberView.action = { this.valueActionIfChanged_(numberView.value) };
if (initAction) {
this.valueAction_(initVal);
}{
this.value_(initVal);
};
this.prSetViewParams;
}
// just set, no action
value_ { arg val;
value = controlSpec.constrain(val);
numberView.value = value.round(round);
knobView.value = controlSpec.unmap(value);
}
// set and do action
valueAction_ { arg val;
this.value_(val);
this.doAction;
}
doAction { action.value(this) }
set { arg label, spec, argAction, initVal, initAction = false;
labelView.notNil.if { labelView.string = label.asString };
spec.notNil.if { controlSpec = spec.asSpec };
argAction.notNil.if { action = argAction };
initVal = initVal ? value ? controlSpec.default;
if (initAction) {
this.valueAction_(initVal);
}{
this.value_(initVal);
};
}
centered_ { arg bool; knobView.centered_(bool) }
centered{ ^knobView.centered }
setColors{arg stringBackground,stringColor,numBackground,
numStringColor,numNormalColor,numTypingColor,knobColors,background;
stringBackground.notNil.if{
labelView.notNil.if{labelView.background_(stringBackground)};
unitView.notNil.if{unitView.background_(stringBackground)};};
stringColor.notNil.if{
labelView.notNil.if{labelView.stringColor_(stringColor)};
unitView.notNil.if{unitView.stringColor_(stringColor)};};
numBackground.notNil.if{
numberView.background_(numBackground);};
numNormalColor.notNil.if{
numberView.normalColor_(numNormalColor);};
numTypingColor.notNil.if{
numberView.typingColor_(numTypingColor);};
numStringColor.notNil.if{
numberView.stringColor_(numStringColor);};
knobColors.notNil.if{
knobView.color_(knobColors);};
background.notNil.if{
view.background=background;};
numberView.refresh;
knobView.refresh;
}
font_{ arg font;
labelView.notNil.if{labelView.font=font};
unitView.notNil.if{unitView.font=font};
numberView.font=font;
}
///////Private methods ///////
prSetViewParams{ // sets resize and alignment for different layouts
switch (layout,
\line2, {
labelView.notNil.if{
labelView.resize_(5);
unitView.notNil.if{unitView.resize_(9)};
numberView.resize_(8);
}{
unitView.notNil.if{
unitView.resize_(6);
numberView.resize_(5);
}{
numberView.resize_(5);
};
};
knobView.resize_(9);
popUp.if{view.resize_(2)};
},
\vert, {
labelView.notNil.if{labelView.resize_(2)};
unitView.notNil.if{unitView.resize_(6)};
numberView.resize_(5);
popUp.if{view.resize_(2)};
},
\vert2, {
labelView.notNil.if{labelView.resize_(2).align_(\center)};
unitView.notNil.if{unitView.resize_(6)};
numberView.resize_(5);
popUp.if{view.resize_(2)};
},
\horz, {
labelView.notNil.if{labelView.resize_(4).align_(\right)};
unitView.notNil.if{unitView.resize_(6)};
numberView.resize_(5);
knobView.resize_(9);
popUp.if{view.resize_(2)};
});
}
prSubViewBounds{arg rect, hasLabel, hasUnit; // calculate subview bounds
var numBounds,labelBounds,knobBounds, unitBounds,knobHeight, numHeight;
var gap1, gap2, gap3, tmp, labelH, unitH;
gap1 = gap.copy;
gap2 = gap.copy;
gap3 = gap.copy;
(rect.height<= (labelSize.y*2)).if{labelSize.y=rect.height/2};
numHeight=labelSize.y;
switch (layout,
\line2, {
knobSize.isNil.if{knobSize=( ((rect.height/compactRatio)-margin.x)@(rect.height))};
knobSize=(knobSize.x-margin.x)@(knobSize.y.min(rect.height));
hasUnit.not.if{ gap2 = 0@0; unitWidth = 0};
labelBounds = Rect(0,0,rect.width-knobSize.x-gap3.x,labelSize.y); //to left
hasLabel.if{
unitBounds = Rect(labelBounds.width-unitWidth,labelSize.y+gap1.y,
unitWidth, rect.height-labelSize.y-gap1.y);
numBounds = Rect(0,labelSize.y+gap1.y,
labelBounds.width-gap2.x-unitBounds.width,rect.height-labelSize.y-gap1.y);
}{
unitBounds = Rect(labelBounds.width-unitWidth,0,
unitWidth, rect.height);
numBounds = Rect(0,0,
labelBounds.width-gap2.x-unitBounds.width,rect.height);
};
knobBounds=knobSize.asRect.moveTo(rect.width-knobSize.x,0);
},
\horz, {
knobSize.isNil.if{knobSize=( ((rect.height/compactRatio)-margin.x)@(rect.height))};
knobSize=(knobSize.x-margin.x)@(knobSize.y.min(rect.height));
knobBounds=knobSize.asRect.moveTo(rect.width-knobSize.x,0);
hasUnit.not.if{ gap2 = 0@0; unitWidth = 0};
hasLabel.not.if{ gap1 = 0@0; labelSize.x = 0};
labelBounds = (labelSize.x@rect.height).asRect;
unitBounds = (unitWidth@rect.height).asRect
.moveTo(rect.width-knobBounds.width-gap2.x-unitWidth,0);
numBounds = Rect.newSides(labelSize.x+gap1.x,0,unitBounds.left-gap2.x,rect.height);
},
\vert , {
hasUnit.not.if{ gap3 = 0@0; unitWidth = 0};
hasLabel.not.if{ gap1 = 0@0; labelSize.y = 0};
knobSize.isNil.if{
knobSize=( ((rect.height-labelSize.y-numHeight-gap1.y-gap2.y)/compactRatio)
@(rect.height-labelSize.y-numHeight-gap1.y-gap2.y))
};
knobSize=((knobSize.x).min(rect.width))
@(knobSize.y.min(rect.height-labelSize.y-numHeight-gap1.y-gap2.y));
labelBounds = (rect.width@labelSize.y).asRect;
knobBounds=knobSize.asRect.moveTo(0,labelSize.y+gap1.y);
numBounds = Rect(0,rect.height-numHeight,rect.width-unitWidth-gap3.x, numHeight);
unitBounds = Rect(rect.width-unitWidth,rect.height-numHeight,unitWidth,numHeight);
},
\vert2 , {
hasUnit.not.if{ gap3 = 0@0; unitWidth = 0};
hasLabel.not.if{ gap1 = 0@0; labelSize.y = 0};
knobSize.isNil.if{
knobSize=( ((rect.height-labelSize.y-numHeight-gap1.y-gap2.y)/compactRatio)
@(rect.height-labelSize.y-numHeight-gap1.y-gap2.y))
};
knobSize=((knobSize.x).min(rect.width))
@(knobSize.y.min(rect.height-labelSize.y-numHeight-gap1.y-gap2.y));
labelBounds = (rect.width@labelSize.y).asRect;
knobBounds=knobSize.asRect.moveTo(0,labelSize.y+gap1.y);
knobBounds=knobBounds.moveBy((rect.width-knobBounds.width)/2,0);
numBounds = Rect(0,rect.height-numHeight,rect.width-unitWidth-gap3.x, numHeight);
unitBounds = Rect(rect.width-unitWidth,rect.height-numHeight,unitWidth,numHeight);
}
);
((knobBounds.height<0)||(knobBounds.width<0)).if{knobBounds=knobBounds.height_(0).width_(0)};
^[labelBounds, numBounds, knobBounds, unitBounds].collect{arg v; v.moveBy(margin.x,margin.y)}
}
}
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