rsc3/doc-schelp/HelpSource/Classes/EZText.schelp

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class:: EZText
summary:: Wrapper class for a label, a text field and a value
categories:: GUI>EZ-GUI
related:: Classes/StaticText, Classes/TextField
description::
EZText is a wrapper class which creates an (optional) link::Classes/StaticText::, and a link::Classes/TextField::. The value is displayed as a compileString in the text field for editing.
subsection:: Some Important Issues Regarding EZText
If the parent is code::nil::, then EZText will create its own link::Classes/Window::. See link::Classes/EZGui:: for more options.
classmethods::
subsection:: Creation / Class Methods
method:: new
argument:: parent
The parent view or window. If the parent is nil, then EZText 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.
argument:: bounds
An instance of link::Classes/Rect:: or link::Classes/Point::. Default value is code::160@20::.
argument:: label
The label. Default value is code::nil::. If code::nil::, then no link::Classes/StaticText:: is created.
argument:: action
A link::Classes/Function:: called when the value changes. The function is passed the EZText instance as its argument.
argument:: initVal
The value to initialize the EZText with.
argument:: initAction
A link::Classes/Boolean:: indicating whether the action function should be called when setting the initial value. The default is false.
argument:: labelWidth
Number of pixels width for the label. The default is 60. In the code::\horz:: layout, if you specify the code::textWidth::, then the code::labelWidth:: is ignored and is set to the code::bounds.width - textWidth::.
argument:: textWidth
Number of pixels width for the number box. The default is 45. In code::\vert:: layout, code::textWidth:: defaults to the code::bounds.width::.
argument:: labelHeight
Default is 20.
argument:: layout
code::\vert::, or code::\horz::. The default is code::\horz::; code::\vert:: is a two line version.
argument:: gap
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.
argument:: margin
A link::Classes/Point::. This will inset the bounds occupied by the subviews of view.
discussion::
Example:
code::
(
w = Window("EZText", Rect(300, 300, 260, 60)).front;
g = EZText( w, // parent
250@50, // bounds
"testing", // label
{ |ez| (ez.value.asString ++" is the value of " ++ ez).postln }, // action
[1, 2, 3], // initValue
true // initAction
);
g.setColors(Color.grey,Color.white);
);
// Simplest version, no parent view, so a window is created
(
g = EZText(label:" test ");
g.action_({ |ez| (ez.value.asString ++" is the value of " ++ ez).postln });
);
(
g = EZText(bounds: Rect( 100, 200, 150, 50), label:" test ", layout: \vert);
g.action_({ |ez| (ez.value.asString ++" is the value of " ++ ez).postln });
);
::
The contained views can be accessed via the EZText instance variables: code::labelView::, code::textField::.
instancemethods::
method:: textField
Returns the textField.
method:: action
A link::Classes/Function:: to be evaluated when the value changes. Typical use is to type in a new value, and interpret it by hitting the evaluation shortcut. The first argument to the function will be the EZText.
method:: value
Gets/sets the value of the ezText. Does not perform the action.
argument:: inval
Any object.
method:: valueAction
Sets the value and performs the action.
argument:: val
Any object.
method:: doAction
Performs the action.
method:: enabled
Sets/gets whether the textfield is enabled.
argument:: bool
An instance of link::Classes/Boolean::. Default is code::true::.
subsection:: Changing Appearance
method:: setColors
argument:: stringBackground
An instance of link::Classes/Color::. The code::background:: of the label and unit views.
argument:: stringColor
An instance of link::Classes/Color::. The code::stringColor:: of the label and unit views.
argument:: textBackground
An instance of link::Classes/Color::. The code::background:: of the textField.
argument:: textStringColor
An instance of link::Classes/Color::. The code::stringColor:: of the textField.
argument:: textNormalColor
An instance of link::Classes/Color::. The code::normalColor:: of the textField.
argument:: textTypingColor
An instance of link::Classes/Color::. The code::typingColor:: of the textField.
argument:: background
An instance of link::Classes/Color::. The code::background:: of the enclosing view.
method:: font
Set the Font used by all the views.
argument:: font
An instance of link::Classes/Font::.
examples::
code::
// Simplest version
( // basic use
w=Window("ez", Rect(300, 300, 300, 50)).front;
g=EZText(w, 290@40," test ", textWidth: 220,layout:\horz);
g.setColors(Color.grey,Color.white);
);
// lots of textFields on one window
(
w=Window.new.front;
w.view.decorator=FlowLayout(w.view.bounds);
w.view.decorator.gap=2@2;
40.do{
g=EZText(w, 170@16," test ", textWidth: 120,layout:\horz);
g.setColors(Color.grey, Color.white, Color.grey(0.8));
};
);
// click these parentheses to see three variants
(
m=nil;
m=2@2; //comment for no margin
/////////////////
/// Layout \horz
( // with label
g=EZText(nil, 170@20," freq ", textWidth:120,layout:\horz,margin:m);
g.setColors(Color.grey,Color.white,background: Color.grey(0.7));
g.window.bounds = g.window.bounds.moveBy(-180,50);
);
( // no label. use window name as label
g=EZText(nil, 120@20, layout:\horz,margin:m);
g.setColors(Color.grey,Color.white,background: Color.grey(0.7));
g.window.bounds = g.window.bounds.moveBy(-180, -90);
g.window.name="Freq";
);
/////////////////
/// Layout \vert
( // all features
g=EZText(nil, 120@60," freq ", textWidth: 120,layout: \vert, margin:m);
g.setColors(Color.grey,Color.white,background: Color.grey(0.7));
g.window.bounds = g.window.bounds.moveBy(100,50);
);
)
// Simplest sound example
(
Tdef(\text).set(\note, [0, 2, 7], \dur, { [0.1, 0.2].choose });
w = Window("EZTexts", Rect(200, 400, 304, 120)).front;
w.addFlowLayout;
TdefGui(Tdef(\text), 0, w);
Tdef(\text).envir.keysValuesDo { |k, v|
EZText(w, Rect(0,0,300,40), k, { |ez|
Tdef(\text).envir.put(*[k, ez.value].postcs);
}, v);
};
Tdef(\text, { |ev|
var mydur;
loop {
mydur = ev.dur;
(note: ev.note, dur: mydur).postln.play;
mydur.wait;
}
}).play;
)
// type these or similar functions into dur and note fields and evaluate:
{ [0.1, 0.2, 0.3].choose }
{ [ 0, 2, 7, 10 ].scramble.keep(rrand(0, 4)) }
::