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Cairo-Chart
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Kolan Sh 2018-01-23 12:48:20 +03:00
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commit e7d9dfb5d3
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src/Place.vala
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namespace CairoChart {
/**
* Place rectangle.
*/
public class Place {
protected double _x0 = 0;
protected double _x1 = 1;
protected double _y0 = 0;
protected double _y1 = 1;
/**
* Zoomed Left bound.
*/
public double zx0 = 0;
/**
* Zoomed Top bound.
*/
public double zx1 = 1;
/**
* Zoomed Right bound.
*/
public double zy0 = 0;
/**
* Zoomed Bottom bound.
*/
public double zy1 = 1;
/**
* Left bound.
*/
public virtual double x0 {
get {
return _x0;
}
set {
zx0 = _x0 = value;
}
}
/**
* Top bound.
*/
public virtual double y0 {
get {
return _y0;
}
set {
zy0 = _y0 = value;
}
}
/**
* Right bound.
*/
public virtual double x1 {
get {
return _x1;
}
set {
zx1 = _x1 = value;
}
}
/**
* Bottom bound.
*/
public virtual double y1 {
get {
return _y1;
}
set {
zy1 = _y1 = value;
}
}
/**
* ``Place`` width.
*/
public virtual double width {
get {
return _x1 - _x0;
}
set {
zx1 = _x1 = _x0 + value;
}
}
/**
* ``Place`` height.
*/
public virtual double height {
get {
return _y1 - _y0;
}
set {
zy1 = _y1 = _y0 + value;
}
}
/**
* ``Place`` zoomed width.
*/
public virtual double zwidth {
get {
return zx1 - zx0;
}
set {
zx1 = zx0 + value;
}
}
/**
* ``Place`` zoomed height.
*/
public virtual double zheight {
get {
return zy1 - zy0;
}
set {
zy1 = zy0 + value;
}
}
/**
* Constructs a new ``Place``.
*/
public Place () { }
/**
* Constructs a new ``Place`` by other ``Place``.
* @param place ``Place`` instance.
*/
public Place.with_place (Place place) {
this.x0 = place.x0;
this.y0 = place.y0;
this.x1 = place.x1;
this.y1 = place.y1;
}
/**
* Constructs a new ``Place`` with absolute coordinates.
* @param x0 left bound.
* @param y0 top bound.
* @param x1 right bound.
* @param y1 bottom bound.
*/
public Place.with_abs (double x0, double y0,
double x1, double y1) {
this.x0 = x0;
this.y0 = y0;
this.x1 = x1;
this.y1 = y1;
}
/**
* Constructs a new ``Place`` by 2 points.
* @param p0 top left position.
* @param p1 bottom right position.
*/
public Place.with_points (Point p0, Point p1) {
this.x0 = p0.x;
this.y0 = p0.y;
this.x1 = p1.x;
this.y1 = p1.y;
}
/**
* Constructs a new ``Place`` with relative coordinates.
* @param x0 left bound.
* @param y0 top bound.
* @param width ``Place`` width.
* @param height ``Place`` height.
*/
public Place.with_rel (double x0, double y0,
double width, double height) {
this.x0 = x0;
this.y0 = y0;
this.width = width;
this.height = height;
}
/**
* Constructs a new ``Place`` by ``Cairo.Rectangle``.
* @param rectangle ``Cairo.Rectangle`` instance.
*/
public Place.with_rectangle (Cairo.Rectangle rectangle) {
this.x0 = rectangle.x;
this.y0 = rectangle.y;
this.width = rectangle.width;
this.height = rectangle.height;
}
/**
* Gets a copy of the ``Chart``.
*/
public virtual Place copy () {
var p = new Place.with_place(this);
p.zx0 = this.zx0;
p.zy0 = this.zy0;
p.zx1 = this.zx1;
p.zy1 = this.zy1;
return p;
}
/**
* Zooms out ``Place``.
*/
public virtual void zoom_out () {
zx0 = x0;
zy0 = y0;
zx1 = x1;
zy1 = y1;
}
}
}