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/* <copyright>
This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
(c) Copyright 2011 Motorola Mobility, Inc. All Rights Reserved.
</copyright> */
///////////////////////////////////////////////////////////////////////
// Class Rectangle
// 2D rectangle
///////////////////////////////////////////////////////////////////////
var Rectangle = exports.Rectangle = Object.create(Object.prototype, {
///////////////////////////////////////////////////////////////////////
// Instance variables
///////////////////////////////////////////////////////////////////////
m_top: { value: null, writable: true },
m_left: { value: null, writable: true },
m_width: { value: null, writable: true },
m_height: { value: null, writable: true },
///////////////////////////////////////////////////////////////////////
// Property accessors
///////////////////////////////////////////////////////////////////////
set: { value: function(l,t,w,h) { this.m_left = l; this.m_top = t; this.m_width = w; this.m_height = h; } },
getLeft: { value: function() { return this.m_left; } },
setLeft: { value: function(l) { this.m_left = l; } },
getRight: { value: function() { return this.m_left + this.m_width; } },
setRight: { value: function(r) { this.m_width = r - this.m_left; } },
getBottom: { value: function() { return this.m_top + this.m_height; } },
setBottom: { value: function(b) { this.m_height = b - this.m_top; } },
getTop: { value: function() { return this.m_top; } },
setTop: { value: function(t) { this.m_top = t; } },
getCenter: { value: function() { return [this.m_left + 0.5*this.m_width, this.m_top + 0.5*this.m_height]; } },
getWidth: { value: function() { return this.m_width; } },
setWidth: { value: function(w) { this.m_width = w; } },
getHeight: { value: function() { return this.m_height; } },
setHeight: { value: function(h) { this.m_height = h; } },
geomType: { value: function() { return this.GEOM_TYPE_RECTANGLE; } },
///////////////////////////////////////////////////////////////////////
// Methods
///////////////////////////////////////////////////////////////////////
contains: {
value: function( x, y )
{
if (x < this.getLeft()) return false;
if (x > this.getRight()) return false;
if (y < this.getTop()) return false;
if (y > this.getBottom()) return false;
return true;
}
},
dup: {
value: function()
{
var rtnRec = Object.create(Rectangle, {});
rtnRec.m_top = this.m_top;
rtnRec.m_left = this.m_left;
rtnRec.m_width = this.m_width;
rtnRec.m_height = this.m_height;
return rtnRec;
}
},
onBoundary: {
value: function( x, y )
{
if ((MathUtils.fpCmp(y,this.getTop()) >= 0) && (MathUtils.fpCmp(y,this.getBottom()) <= 0))
{
if ((MathUtils.fpCmp(x, this.getLeft()) == 0) || (MathUtils.fpCmp(x, this.getRight()) == 0)) return true;
if ((MathUtils.fpCmp(x,this.getLeft()) >= 0) && (MathUtils.fpCmp(x,this.getRight()) <= 0))
{
if ((MathUtils.fpCmp(y, this.getTop()) == 0) || (MathUtils.fpCmp(y, this.getBottom()) == 0)) return true;
}
}
return false;
}
},
setToPoint: {
value: function( pt )
{
this.m_left = pt[0]; this.m_top = pt[1];
this.m_width = 0; this.m_height = 0;
}
},
setToBounds: {
value: function( bounds )
{
var pt = bounds[0];
this.setToPoint( pt );
for (var i=1; i<4; i++)
this.unionPoint( bounds[i] );
}
},
getPoint: {
value: function(i)
{
if (i < 0) throw( "invalid point index in Rectangle.getPoint: " + i );
i = i % 4;
var pt = [0,0];
switch (i)
{
case 0:
pt[0] = this.getLeft();
pt[1] = this.getTop();
break;
case 1:
pt[0] = this.getLeft();
pt[1] = this.getBottom();
break;
case 2:
pt[0] = this.getRight();
pt[1] = this.getBottom();
break;
case 3:
pt[0] = this.getRight();
pt[1] = this.getTop();
break;
}
return pt;
}
},
getQuadrant: {
value: function( iQuad )
{
// quadrant ordering starts at upper left and continues around counter-clockwise
var rtnQuad = this.dup();
var hw = 0.5*this.m_width, hh = 0.5*this.m_height;
rtnQuad.m_width = hw;
rtnQuad.m_height = hh;
switch (iQuad)
{
case 0:
// no-op
break;
case 1:
rtnQuad.m_top += hh;
break;
case 2:
rtnQuad.m_left += hw;
rtnQuad.m_top += hh;
break;
case 3:
rtnQuad.m_left += hw;
break;
default:
throw new Error( "invalid quadrant to Rectangle.getQuadrant: " + iQuad );
break;
}
return rtnQuad;
}
},
unionPoint: {
value: function( pt )
{
var x = pt[0];
var xMin = this.getLeft(), xMax = this.getRight();
if (x < xMin) xMin =x;
else if (x > xMax) xMax = x;
var y = pt[1];
var yMin = this.getTop(), yMax = this.getBottom();
if (y < yMin) yMin = y;
else if (y > yMax) yMax = y;
this.setLeft( xMin ); this.setWidth( xMax - xMin );
this.setTop( yMin ); this.setHeight( yMax - yMin );
}
},
translate: {
value: function( dx, dy )
{
this.m_left += dx;
this.m_top += dy;
}
}
});
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