114 lines
1.5 KiB
Vala
114 lines
1.5 KiB
Vala
namespace CairoChart {
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/**
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* Linear range.
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*/
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public class Range {
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double _low = 0;
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double _high = 1;
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/**
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* Zoomed low bound.
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*/
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double zlow = 0;
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/**
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* Zoomed high bound.
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*/
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double zhigh = 1;
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/**
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* Low bound.
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*/
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public double low {
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get {
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return _low;
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}
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set {
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zlow = _low = value;
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}
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}
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/**
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* High bound.
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*/
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public double high {
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get {
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return _high;
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}
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set {
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zhigh = _high = value;
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}
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}
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/**
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* ``Range`` value.
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*/
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public double range {
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get {
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return _high - _low;
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}
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set {
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zhigh = _high = _low + value;
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}
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}
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/**
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* ``Range`` zoomed value.
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*/
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public double zrange {
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get {
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return zhigh - zlow;
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}
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set {
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zhigh = zlow + value;
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}
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}
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/**
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* Constructs a new ``Range``.
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*/
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public Range () { }
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/**
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* Constructs a new ``Range`` with a ``Range`` instance.
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*/
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public Range.with_range (Range range) {
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this.low = range.low;
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this.high = range.high;
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}
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/**
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* Constructs a new ``Range`` with absolute coordinates.
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*/
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public Range.with_abs (double low, double high) {
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this.low = low;
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this.high = high;
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}
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/**
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* Constructs a new ``Range`` with relative coordinates.
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*/
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public Range.with_rel (double low, double range) {
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this.low = low;
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this.range = range;
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}
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/**
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* Gets a copy of the ``Range``.
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*/
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public Range copy () {
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return new Range.with_range(this);
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}
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/**
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* Unzooms ``Range``.
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*/
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public void unzoom () {
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zlow = low;
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zhigh = high;
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}
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}
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}
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