103 lines
2.2 KiB
Text
103 lines
2.2 KiB
Text
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#lang scribble/manual
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@(require (for-label racket))
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@title{Resize behaviour}
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Resize behavior for View and its subclasses@section{categories}
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GUI
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@section{section}
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Description
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@section{method}
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resize
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The link::Classes/View#-resize:: method takes nine different values as argument defining the behavior of the view when the containing window is resized. Each view responds relatively to the stretches of its parent view.
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@section{table}
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## 1 || 2 || 3
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## 4 || 5 || 6
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## 7 || 8 || 9
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::
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@section{list}
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## 1 - fixed to left, fixed to top
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## 2 - horizontally elastic, fixed to top
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## 3 - fixed to right, fixed to top
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## 4 - fixed to left, vertically elastic
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## 5 - horizontally elastic, vertically elastic
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## 6 - fixed to right, vertically elastic
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## 7 - fixed to left, fixed to bottom
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## 8 - horizontally elastic, fixed to bottom
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## 9 - fixed to right, fixed to bottom
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::
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@section{section}
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Examples
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@racketblock[
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// resize behaviours
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// use the PopUpMenus to mix resize modes
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(
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var a;
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a = { |i|
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var w, b, x,k,t,p;
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k=i;
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i = i + 1;
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w = Window("resize:"+i, Rect(10 + (k%3 * 220), Window.screenBounds.height- [250,460,670].at(k/3), 200, 180));
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b = w.view.bounds;
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x = CompositeView(w, w.view.bounds.insetBy(20,20))
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.background_(Color.rand)
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.resize_(i);
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y = CompositeView(x, x.bounds.moveTo(0,0).insetBy(20,20))
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.background_(Color.rand)
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.resize_(i);
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y.decorator = FlowLayout(y.bounds).gap_(0.0 @ 0.0);
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t = StaticText(y, Rect(0, 0, 40, 40))
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.background_(Color.rand.alpha_(0.8))
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.resize_(i)
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.string_(i)
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.font_(Font("Helvetica", 26));
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p=PopUpMenu(y,40@40).items_((1..9).collect(_.asString)).value_(i-1).resize_(i)
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.action_{|m| t.string_((m.value+1).asString); [p,t].do(_.resize_(m.value+1))};
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w.front;
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w.onClose = {a.do(_.close) };
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} ! 9;
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)
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// the popupmenu contains the various modes
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(
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w = Window("soundfile test", Rect(200, 200, 720, 250));
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p = PopUpMenu(w, Rect(10,10,80,24))
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.items_( Array.fill(9, {arg i; (i+1).asString;}) )
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.action_({ arg sbs;
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a.resize_(sbs.value+1);
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});
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f = SoundFile.new;
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f.openRead(Platform.resourceDir +/+ "sounds/a11wlk01.wav");
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a = SoundFileView(w, Rect(10,40, 700, 180))
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.soundfile_(f)
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.readWithTask(0, f.numFrames, showProgress: false )
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.resize_(1);
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w.front;
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)
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::
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]
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