31 lines
991 B
Text
31 lines
991 B
Text
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class:: EZScroller
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summary:: Show a subset of items on gui elements
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categories:: GUI>EZ-GUI
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description::
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EZScroller is a vertical slider that allows displaying different subsets of a dynamically changing list of objects on a fixed number of views by scrolling.
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EZScroller is used JITLib guis like link::Classes/NodeProxyEditor::, link::Classes/ProxyMixer::, link::Classes/TdefAllGui::, and link::Classes/PdefAllGui::.
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examples::
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code::
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(
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w = Window.new("EZScroller test", Rect(100, 400,200, 100)).front;
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// 5 displays
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v = { |i| DragBoth.new(w, Rect(0, i * 20, 100, 20)) }.dup(5);
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// 12 items
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a = (1..12);
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e = EZScroller(w, Rect(100,0,14,100), v.size, a.size, { |sc|
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var startIndex = sc.value.asInteger.postcs;
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v.do { |drag, i| drag.object_( a[ (startIndex) + i] ? ""); };
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e.visible_(sc.numItems > sc.maxItems); // hide when not useful
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});
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e.doAction;
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)
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// change list a, update ezscroller
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a = (1..4); e.numItems_(a.size); e.doAction;
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a = (1..8); e.numItems_(a.size); e.doAction;
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::
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