321 lines
11 KiB
Text
321 lines
11 KiB
Text
class:: EZNumber
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summary:: Wrapper class for label and number box
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categories:: GUI>EZ-GUI
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related:: Classes/NumberBox
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description::
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EZNumber is wrapper class which creates an (optional) link::Classes/StaticText::, and a link::Classes/NumberBox::.
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subsection:: Some Important Issues Regarding NumberBox
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If the parent is code::nil::, then EZNumber will create its own window. See link::Classes/EZGui:: more options.
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subsection:: Scrolling and Arrow Keys
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EZNumber scrolls by default, using the step size of the link::Classes/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 code::minval:: and code::maxval:: values of the spec on creation of the view. Unlike the step variable of a regular link::Classes/NumberBox::, code::controlSpec.step:: is also the smallest possible increment for the EZNumber. By default, the shift-key modifier will allow you to step by 100 x code::controlSpec.step::, while the ctrl-key will give you 10x code::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 code::numberView.alt_step:: to any value you like. Accordingly you can customize the other modifiers to fit your needs. See link::Classes/NumberBox::.
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classmethods::
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method:: new
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argument:: parent
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The parent view or window. If the parent is nil, then EZNumber will create its own link::Classes/Window::, and place it conveniently on the screen if the bounds are a link::Classes/Point::. If the bounds are a link::Classes/Rect::, then the link::Classes/Rect:: determines the window bounds.
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argument:: bounds
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An instance of link::Classes/Rect:: or link::Classes/Point::. Default value is code::160@20::.
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argument:: label
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The label. Default value is code::nil::. If code::nil::, then no link::Classes/StaticText:: is created.
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argument:: controlSpec
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The link::Classes/ControlSpec:: for scaling the value.
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argument:: action
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A link::Classes/Function:: called when the value changes. The function is passed the EZNumber instance as its argument.
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argument:: initVal
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The value to initialize the slider and number box with. If code::nil::, then it uses the link::Classes/ControlSpec::'s default value.
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argument:: initAction
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A link::Classes/Boolean:: indicating whether the action function should be called when setting the initial value. The default is code::false::.
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argument:: labelWidth
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Number of pixels width for the label. The default is 60. In the code::\horz:: layout, if you specify the code::numberWidth::, then the code::labelWidth:: is ignored and is set to the code::bounds.width - unitWidth - numberWidth::.
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argument:: numberWidth
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Number of pixels width for the number box. The default is 45. In \line2 layout, numberWidth defaults to the bounds.width minus the unitWidth.
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argument:: unitWidth
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Number of pixels width for the unit label. The default is 0. If code::unitWidth:: is 0, then no code::unitLabel:: is created. In the code::\line2:: layout, if you specify the code::numberWidth::, then the code::unitWidth:: is ignored and is set to the code::bounds.width - unitWidth - numberWidth::.
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argument:: labelHeight
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Default is 20;
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argument:: layout
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code::\line2::, or code::\horz::. The default is code::\horz::; code::\line2:: is a two line version.
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argument:: gap
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A link::Classes/Point::. By default, the view tries to get its parent's gap, otherwise it defaults to code::2@2::. Setting it overrides these.
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argument:: margin
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A link::Classes/Point::. This will inset the bounds occupied by the subviews of view.
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discussion::
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code::
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(
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w = Window.new.front;
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g = EZNumber(w, // parent
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150@20, // bounds
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" test ", // label
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\freq, // controlSpec
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{ |ez| (ez.value.asString ++" is the value of " ++ ez).postln }, // action
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330, // initValue
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true // initAction
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);
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g.setColors(Color.grey,Color.white);
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);
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// Simplest version, no parent view, so a window is created
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(
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g = EZNumber(label:" test ", controlSpec: \amp.asSpec.step_(0.01) );
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g.action_({ |ez| (ez.value.asString ++" is the value of " ++ ez).postln });
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);
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::
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The contained views can be accessed via the EZNumber instance variables: code::labelView::, code::numberView::.
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instancemethods::
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method:: numberView
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Returns the numberView
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method:: action
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A function to be evaluated when the value changes. Te first argument will be the EZNumber.
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argument:: arg1
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An instance of link::Classes/Function:: or link::Classes/FunctionList::. Default value is nil.
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method:: value
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The value of the slider
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method:: round
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Rounds the values in the number box.
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method:: controlSpec
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An instance of link::Classes/ControlSpec:: for scaling the values.
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method:: value
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Gets/sets the list/menu to the index at value. Does not perform the action.
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argument:: val
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An link::Classes/Integer::.
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valueAction
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Sets the value and performs the action at the index value and the global action.
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argument:: val
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An link::Classes/Integer::.
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method:: doAction
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Performs the action at the current index and the global action.
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method:: set
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Set the args after creation.
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method:: enabled
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Sets/gets if the list is enabled.
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argument:: bool
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An instance of link::Classes/Boolean::. Default is code::true::.
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subsection:: Changing Appearance
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method:: setColors
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argument:: stringBackground
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An instance of link::Classes/Color::. The code::background:: of the label and unit views.
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argument:: stringColor
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An instance of link::Classes/Color::. The code::stringColor:: of the label and unit views.
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argument:: numBackground
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An instance of link::Classes/Color::. The code::background:: of the number view.
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argument:: numStringColor
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An instance of link::Classes/Color::. The code::stringColor:: of the number view.
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argument:: numNormalColor
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An instance of link::Classes/Color::. The code::normalColor:: of the number view.
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argument:: numTypingColor
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An instance of link::Classes/Color::. The code::typingColor:: of the number view.
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argument:: background
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An instance of link::Classes/Color::. The code::background:: of the enclosing view.
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method:: font
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Set the link::Classes/Font:: used by all the views.
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argument:: font
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An instance of link::Classes/Font::.
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examples::
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code::
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// Simplest version
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( // basic use
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w=Window.new.front;
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g=EZNumber(w, 170@16," test ", \freq,unitWidth:30, numberWidth:60,layout:\horz);
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g.setColors(Color.grey,Color.white);
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);
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// lots of numberviews on on view
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(
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w=Window.new.front;
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w.view.decorator=FlowLayout(w.view.bounds);
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w.view.decorator.gap=2@2;
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40.do{
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g=EZNumber(w, 170@16," test ", \freq,unitWidth:30, numberWidth:60,layout:\horz);
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g.setColors(Color.grey,Color.white, Color.grey(0.8));
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};
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);
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// click these parentheses to see all features and layouts
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(
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m=nil;
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m=2@2; //comment for no margin
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/////////////////
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/// Layout \horz
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( // all features
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g=EZNumber(nil, 170@20," freq ", \freq,unitWidth:30, numberWidth:60,layout:\horz,margin:m);
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g.setColors(Color.grey,Color.white,background: Color.grey(0.7));
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g.window.bounds = g.window.bounds.moveBy(-180,50);
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);
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( // no unitView
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g=EZNumber(nil, 170@20," freq ", \freq,unitWidth:0, numberWidth:60,layout:\horz,margin:m);
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g.setColors(Color.grey,Color.white,background: Color.grey(0.7));
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g.window.bounds = g.window.bounds.moveBy(-180, -20);
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);
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( // no label, with unit. use window name as label
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g=EZNumber(nil, 120@20,nil, \freq,unitWidth:30, numberWidth:60,layout:\horz,margin:m);
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g.setColors(Color.grey,Color.white,background: Color.grey(0.7));
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g.window.bounds = g.window.bounds.moveBy(-180, -90);
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g.window.name="Freq";
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);
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( // no units, no label; use window name as label;
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g=EZNumber(nil, 120@20, nil, \freq,unitWidth:0, numberWidth:60,layout:\horz,margin:m);
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g.setColors(Color.grey,Color.white,background: Color.grey(0.7));
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g.window.bounds = g.window.bounds.moveBy(-180, -160);
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g.window.name="Freq";
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);
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/////////////////
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/// Layout \line2
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( // all features
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g=EZNumber(nil, 120@42," freq ", \freq,unitWidth:30, numberWidth:60,layout:\line2,margin:m);
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g.setColors(Color.grey,Color.white,background: Color.grey(0.7));
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g.window.bounds = g.window.bounds.moveBy(100,50);
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);
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( // no unitView, with label
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g=EZNumber(nil, 170@42," freq ", \freq,unitWidth:0, numberWidth:60,layout:\line2,margin:m);
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g.setColors(Color.grey,Color.white,background: Color.grey(0.7));
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g.window.bounds = g.window.bounds.moveBy(100, -50);
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);
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( // no unitView, no label; use window name as label
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g=EZNumber(nil, 170@20,nil, \freq,unitWidth:0, numberWidth:60,layout:\line2,margin:m);
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g.setColors(Color.grey,Color.white,background: Color.grey(0.7));
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g.window.bounds = g.window.bounds.moveBy(100,-150);
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g.window.name="Freq";
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);
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)
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// Sound example
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(
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// start server
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s.waitForBoot({
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var w, startButton, noteControl, cutoffControl, resonControl;
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var balanceControl, ampControl;
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var node, cmdPeriodFunc;
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// define a synth
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SynthDef("window-test", { arg note = 36, fc = 1000, rq = 0.25, bal=0, amp=0.4, gate = 1;
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var x;
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x = Mix.fill(4, {
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LFSaw.ar((note + {0.1.rand2}.dup).midicps, 0, 0.02)
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});
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x = RLPF.ar(x, fc, rq).softclip;
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x = RLPF.ar(x, fc, rq, amp).softclip;
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x = Balance2.ar(x[0], x[1], bal);
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x = x * EnvGen.kr(Env.cutoff, gate, doneAction: Done.freeSelf);
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Out.ar(0, x);
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}, [0.1, 0.1, 0.1, 0.1, 0.1, 0]
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).add;
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// make the window
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w = Window("another control panel", Rect(200, 400, 300, 180));
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w.front; // make window visible and front window.
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w.view.decorator = FlowLayout(w.view.bounds);
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w.view.background = Color.rand;
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// add a button to start and stop the sound.
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startButton = Button(w, 75 @ 20);
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startButton.states = [
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["Start", Color.black, Color.green],
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["Stop", Color.white, Color.red]
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];
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startButton.action = {|view|
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if (view.value == 1) {
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// start sound
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node = Synth( "window-test", [
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"note", noteControl.value,
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"fc", cutoffControl.value,
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"rq", resonControl.value,
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"bal", balanceControl.value,
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"amp", ampControl.value.dbamp ]);
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} {
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// set gate to zero to cause envelope to release
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node.release; node = nil;
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};
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};
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// create controls for all parameters
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w.view.decorator.nextLine;
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noteControl = EZNumber(w, 160 @ 20, "Note ", ControlSpec(24, 60, \lin, 1),
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{|ez| node.set( "note", ez.value )}, 36);
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w.view.decorator.nextLine;
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cutoffControl = EZNumber(w, 160 @ 20, "Cutoff ", ControlSpec(200, 5000, \exp),
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{|ez| node.set( "fc", ez.value )}, 1000);
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w.view.decorator.nextLine;
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resonControl = EZNumber(w, 160 @ 20, "Reson", ControlSpec(0.1, 0.7),
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{|ez| node.set( "rq", ez.value )}, 0.2);
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w.view.decorator.nextLine;
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balanceControl = EZNumber(w, 160 @ 20, "Balance ", \bipolar,
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{|ez| node.set( "bal", ez.value )}, 0);
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w.view.decorator.nextLine;
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ampControl = EZNumber(w, 160 @ 20, "Amp ", \db,
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{|ez| node.set( "amp", ez.value.dbamp )}, -6);
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// set start button to zero upon a cmd-period
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cmdPeriodFunc = { startButton.value = 0; };
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CmdPeriod.add(cmdPeriodFunc);
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// stop the sound when window closes and remove cmdPeriodFunc.
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w.onClose = {
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node.free; node = nil;
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CmdPeriod.remove(cmdPeriodFunc);
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};
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});
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)
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::
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