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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | class:: EZScroller
summary:: Show a subset of items on gui elements
categories:: GUI>EZ-GUI
description::
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.
EZScroller is used JITLib guis like link::Classes/NodeProxyEditor::, link::Classes/ProxyMixer::, link::Classes/TdefAllGui::, and link::Classes/PdefAllGui::.
examples::
code::
(
w = Window.new("EZScroller test", Rect(100, 400,200, 100)).front;
// 5 displays
v = { |i| DragBoth.new(w, Rect(0, i * 20, 100, 20)) }.dup(5);
// 12 items
a = (1..12);
e = EZScroller(w, Rect(100,0,14,100), v.size, a.size, { |sc|
var startIndex = sc.value.asInteger.postcs;
v.do { |drag, i| drag.object_( a[ (startIndex) + i] ? ""); };
e.visible_(sc.numItems > sc.maxItems); // hide when not useful
});
e.doAction;
)
// change list a, update ezscroller
a = (1..4); e.numItems_(a.size); e.doAction;
a = (1..8); e.numItems_(a.size); e.doAction;
::
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