assets/javascripts/jquery/jquery.jqplot/plugins/jqplot.pyramidGridRenderer.js
/**
* jqPlot
* Pure JavaScript plotting plugin using jQuery
*
* Version: 1.0.0
* Revision: 1095
*
* Copyright (c) 2009-2011 Chris Leonello
* jqPlot is currently available for use in all personal or commercial projects
* under both the MIT (http://www.opensource.org/licenses/mit-license.php) and GPL
* version 2.0 (http://www.gnu.org/licenses/gpl-2.0.html) licenses. This means that you can
* choose the license that best suits your project and use it accordingly.
*
* Although not required, the author would appreciate an email letting him
* know of any substantial use of jqPlot. You can reach the author at:
* chris at jqplot dot com or see http://www.jqplot.com/info.php .
*
* If you are feeling kind and generous, consider supporting the project by
* making a donation at: http://www.jqplot.com/donate.php .
*
* sprintf functions contained in jqplot.sprintf.js by Ash Searle:
*
* version 2007.04.27
* author Ash Searle
* http://hexmen.com/blog/2007/03/printf-sprintf/
* http://hexmen.com/js/sprintf.js
* The author (Ash Searle) has placed this code in the public domain:
* "This code is unrestricted: you are free to use it however you like."
*
*/
(function($) {
// Class: $.jqplot.CanvasGridRenderer
// The default jqPlot grid renderer, creating a grid on a canvas element.
// The renderer has no additional options beyond the <Grid> class.
$.jqplot.PyramidGridRenderer = function(){
$.jqplot.CanvasGridRenderer.call(this);
};
$.jqplot.PyramidGridRenderer.prototype = new $.jqplot.CanvasGridRenderer();
$.jqplot.PyramidGridRenderer.prototype.constructor = $.jqplot.PyramidGridRenderer;
// called with context of Grid object
$.jqplot.CanvasGridRenderer.prototype.init = function(options) {
this._ctx;
this.plotBands = {
show: false,
color: 'rgb(230, 219, 179)',
axis: 'y',
start: null,
interval: 10
};
$.extend(true, this, options);
// set the shadow renderer options
var sopts = {lineJoin:'miter', lineCap:'round', fill:false, isarc:false, angle:this.shadowAngle, offset:this.shadowOffset, alpha:this.shadowAlpha, depth:this.shadowDepth, lineWidth:this.shadowWidth, closePath:false, strokeStyle:this.shadowColor};
this.renderer.shadowRenderer.init(sopts);
};
$.jqplot.PyramidGridRenderer.prototype.draw = function() {
this._ctx = this._elem.get(0).getContext("2d");
var ctx = this._ctx;
var axes = this._axes;
var xp = axes.xaxis.u2p;
var yp = axes.yMidAxis.u2p;
var xnudge = axes.xaxis.max/1000.0;
var xp0 = xp(0);
var xpn = xp(xnudge);
var ax = ['xaxis', 'yaxis', 'x2axis', 'y2axis','yMidAxis'];
// Add the grid onto the grid canvas. This is the bottom most layer.
ctx.save();
ctx.clearRect(0, 0, this._plotDimensions.width, this._plotDimensions.height);
ctx.fillStyle = this.backgroundColor || this.background;
ctx.fillRect(this._left, this._top, this._width, this._height);
if (this.plotBands.show) {
ctx.save();
var pb = this.plotBands;
ctx.fillStyle = pb.color;
var axis;
var x, y, w, h;
// find axis to work with
if (pb.axis.charAt(0) === 'x') {
if (axes.xaxis.show) {
axis = axes.xaxis;
}
}
else if (pb.axis.charAt(0) === 'y') {
if (axes.yaxis.show) {
axis = axes.yaxis;
}
else if (axes.y2axis.show) {
axis = axes.y2axis;
}
else if (axes.yMidAxis.show) {
axis = axes.yMidAxis;
}
}
if (axis !== undefined) {
// draw some rectangles
var start = pb.start;
if (start === null) {
start = axis.min;
}
for (var i = start; i < axis.max; i += 2 * pb.interval) {
if (axis.name.charAt(0) === 'y') {
x = this._left;
if ((i + pb.interval) < axis.max) {
y = axis.series_u2p(i + pb.interval) + this._top;
}
else {
y = axis.series_u2p(axis.max) + this._top;
}
w = this._right - this._left;
h = axis.series_u2p(start) - axis.series_u2p(start + pb.interval);
ctx.fillRect(x, y, w, h);
}
// else {
// y = 0;
// x = axis.series_u2p(i);
// h = this._height;
// w = axis.series_u2p(start + pb.interval) - axis.series_u2p(start);
// }
}
}
ctx.restore();
}
ctx.save();
ctx.lineJoin = 'miter';
ctx.lineCap = 'butt';
ctx.lineWidth = this.gridLineWidth;
ctx.strokeStyle = this.gridLineColor;
var b, e, s, m;
for (var i=5; i>0; i--) {
var name = ax[i-1];
var axis = axes[name];
var ticks = axis._ticks;
var numticks = ticks.length;
if (axis.show) {
if (axis.drawBaseline) {
var bopts = {};
if (axis.baselineWidth !== null) {
bopts.lineWidth = axis.baselineWidth;
}
if (axis.baselineColor !== null) {
bopts.strokeStyle = axis.baselineColor;
}
switch (name) {
case 'xaxis':
if (axes.yMidAxis.show) {
drawLine (this._left, this._bottom, xp0, this._bottom, bopts);
drawLine (xpn, this._bottom, this._right, this._bottom, bopts);
}
else {
drawLine (this._left, this._bottom, this._right, this._bottom, bopts);
}
break;
case 'yaxis':
drawLine (this._left, this._bottom, this._left, this._top, bopts);
break;
case 'yMidAxis':
drawLine(xp0, this._bottom, xp0, this._top, bopts);
drawLine(xpn, this._bottom, xpn, this._top, bopts);
break;
case 'x2axis':
if (axes.yMidAxis.show) {
drawLine (this._left, this._top, xp0, this._top, bopts);
drawLine (xpn, this._top, this._right, this._top, bopts);
}
else {
drawLine (this._left, this._bottom, this._right, this._bottom, bopts);
}
break;
case 'y2axis':
drawLine (this._right, this._bottom, this._right, this._top, bopts);
break;
}
}
for (var j=numticks; j>0; j--) {
var t = ticks[j-1];
if (t.show) {
var pos = Math.round(axis.u2p(t.value)) + 0.5;
switch (name) {
case 'xaxis':
// draw the grid line if we should
if (t.showGridline && this.drawGridlines && (!t.isMinorTick || axis.showMinorTicks)) {
drawLine(pos, this._top, pos, this._bottom);
}
// draw the mark
if (t.showMark && t.mark && (!t.isMinorTick || axis.showMinorTicks)) {
s = t.markSize;
m = t.mark;
var pos = Math.round(axis.u2p(t.value)) + 0.5;
switch (m) {
case 'outside':
b = this._bottom;
e = this._bottom+s;
break;
case 'inside':
b = this._bottom-s;
e = this._bottom;
break;
case 'cross':
b = this._bottom-s;
e = this._bottom+s;
break;
default:
b = this._bottom;
e = this._bottom+s;
break;
}
// draw the shadow
if (this.shadow) {
this.renderer.shadowRenderer.draw(ctx, [[pos,b],[pos,e]], {lineCap:'butt', lineWidth:this.gridLineWidth, offset:this.gridLineWidth*0.75, depth:2, fill:false, closePath:false});
}
// draw the line
drawLine(pos, b, pos, e);
}
break;
case 'yaxis':
// draw the grid line
if (t.showGridline && this.drawGridlines && (!t.isMinorTick || axis.showMinorTicks)) {
drawLine(this._right, pos, this._left, pos);
}
// draw the mark
if (t.showMark && t.mark && (!t.isMinorTick || axis.showMinorTicks)) {
s = t.markSize;
m = t.mark;
var pos = Math.round(axis.u2p(t.value)) + 0.5;
switch (m) {
case 'outside':
b = this._left-s;
e = this._left;
break;
case 'inside':
b = this._left;
e = this._left+s;
break;
case 'cross':
b = this._left-s;
e = this._left+s;
break;
default:
b = this._left-s;
e = this._left;
break;
}
// draw the shadow
if (this.shadow) {
this.renderer.shadowRenderer.draw(ctx, [[b, pos], [e, pos]], {lineCap:'butt', lineWidth:this.gridLineWidth*1.5, offset:this.gridLineWidth*0.75, fill:false, closePath:false});
}
drawLine(b, pos, e, pos, {strokeStyle:axis.borderColor});
}
break;
case 'yMidAxis':
// draw the grid line
if (t.showGridline && this.drawGridlines && (!t.isMinorTick || axis.showMinorTicks)) {
drawLine(this._left, pos, xp0, pos);
drawLine(xpn, pos, this._right, pos);
}
// draw the mark
if (t.showMark && t.mark && (!t.isMinorTick || axis.showMinorTicks)) {
s = t.markSize;
m = t.mark;
var pos = Math.round(axis.u2p(t.value)) + 0.5;
b = xp0;
e = xp0 + s;
// draw the shadow
if (this.shadow) {
this.renderer.shadowRenderer.draw(ctx, [[b, pos], [e, pos]], {lineCap:'butt', lineWidth:this.gridLineWidth*1.5, offset:this.gridLineWidth*0.75, fill:false, closePath:false});
}
drawLine(b, pos, e, pos, {strokeStyle:axis.borderColor});
b = xpn - s;
e = xpn;
// draw the shadow
if (this.shadow) {
this.renderer.shadowRenderer.draw(ctx, [[b, pos], [e, pos]], {lineCap:'butt', lineWidth:this.gridLineWidth*1.5, offset:this.gridLineWidth*0.75, fill:false, closePath:false});
}
drawLine(b, pos, e, pos, {strokeStyle:axis.borderColor});
}
break;
case 'x2axis':
// draw the grid line
if (t.showGridline && this.drawGridlines && (!t.isMinorTick || axis.showMinorTicks)) {
drawLine(pos, this._bottom, pos, this._top);
}
// draw the mark
if (t.showMark && t.mark && (!t.isMinorTick || axis.showMinorTicks)) {
s = t.markSize;
m = t.mark;
var pos = Math.round(axis.u2p(t.value)) + 0.5;
switch (m) {
case 'outside':
b = this._top-s;
e = this._top;
break;
case 'inside':
b = this._top;
e = this._top+s;
break;
case 'cross':
b = this._top-s;
e = this._top+s;
break;
default:
b = this._top-s;
e = this._top;
break;
}
// draw the shadow
if (this.shadow) {
this.renderer.shadowRenderer.draw(ctx, [[pos,b],[pos,e]], {lineCap:'butt', lineWidth:this.gridLineWidth, offset:this.gridLineWidth*0.75, depth:2, fill:false, closePath:false});
}
drawLine(pos, b, pos, e);
}
break;
case 'y2axis':
// draw the grid line
if (t.showGridline && this.drawGridlines && (!t.isMinorTick || axis.showMinorTicks)) {
drawLine(this._left, pos, this._right, pos);
}
// draw the mark
if (t.showMark && t.mark && (!t.isMinorTick || axis.showMinorTicks)) {
s = t.markSize;
m = t.mark;
var pos = Math.round(axis.u2p(t.value)) + 0.5;
switch (m) {
case 'outside':
b = this._right;
e = this._right+s;
break;
case 'inside':
b = this._right-s;
e = this._right;
break;
case 'cross':
b = this._right-s;
e = this._right+s;
break;
default:
b = this._right;
e = this._right+s;
break;
}
// draw the shadow
if (this.shadow) {
this.renderer.shadowRenderer.draw(ctx, [[b, pos], [e, pos]], {lineCap:'butt', lineWidth:this.gridLineWidth*1.5, offset:this.gridLineWidth*0.75, fill:false, closePath:false});
}
drawLine(b, pos, e, pos, {strokeStyle:axis.borderColor});
}
break;
default:
break;
}
}
}
t = null;
}
axis = null;
ticks = null;
}
ctx.restore();
function drawLine(bx, by, ex, ey, opts) {
ctx.save();
opts = opts || {};
if (opts.lineWidth == null || opts.lineWidth != 0){
$.extend(true, ctx, opts);
ctx.beginPath();
ctx.moveTo(bx, by);
ctx.lineTo(ex, ey);
ctx.stroke();
}
ctx.restore();
}
if (this.shadow) {
if (axes.yMidAxis.show) {
var points = [[this._left, this._bottom], [xp0, this._bottom]];
this.renderer.shadowRenderer.draw(ctx, points);
var points = [[xpn, this._bottom], [this._right, this._bottom], [this._right, this._top]];
this.renderer.shadowRenderer.draw(ctx, points);
var points = [[xp0, this._bottom], [xp0, this._top]];
this.renderer.shadowRenderer.draw(ctx, points);
}
else {
var points = [[this._left, this._bottom], [this._right, this._bottom], [this._right, this._top]];
this.renderer.shadowRenderer.draw(ctx, points);
}
}
// Now draw border around grid. Use axis border definitions. start at
// upper left and go clockwise.
if (this.borderWidth != 0 && this.drawBorder) {
if (axes.yMidAxis.show) {
drawLine (this._left, this._top, xp0, this._top, {lineCap:'round', strokeStyle:axes.x2axis.borderColor, lineWidth:axes.x2axis.borderWidth});
drawLine (xpn, this._top, this._right, this._top, {lineCap:'round', strokeStyle:axes.x2axis.borderColor, lineWidth:axes.x2axis.borderWidth});
drawLine (this._right, this._top, this._right, this._bottom, {lineCap:'round', strokeStyle:axes.y2axis.borderColor, lineWidth:axes.y2axis.borderWidth});
drawLine (this._right, this._bottom, xpn, this._bottom, {lineCap:'round', strokeStyle:axes.xaxis.borderColor, lineWidth:axes.xaxis.borderWidth});
drawLine (xp0, this._bottom, this._left, this._bottom, {lineCap:'round', strokeStyle:axes.xaxis.borderColor, lineWidth:axes.xaxis.borderWidth});
drawLine (this._left, this._bottom, this._left, this._top, {lineCap:'round', strokeStyle:axes.yaxis.borderColor, lineWidth:axes.yaxis.borderWidth});
drawLine (xp0, this._bottom, xp0, this._top, {lineCap:'round', strokeStyle:axes.yaxis.borderColor, lineWidth:axes.yaxis.borderWidth});
drawLine (xpn, this._bottom, xpn, this._top, {lineCap:'round', strokeStyle:axes.yaxis.borderColor, lineWidth:axes.yaxis.borderWidth});
}
else {
drawLine (this._left, this._top, this._right, this._top, {lineCap:'round', strokeStyle:axes.x2axis.borderColor, lineWidth:axes.x2axis.borderWidth});
drawLine (this._right, this._top, this._right, this._bottom, {lineCap:'round', strokeStyle:axes.y2axis.borderColor, lineWidth:axes.y2axis.borderWidth});
drawLine (this._right, this._bottom, this._left, this._bottom, {lineCap:'round', strokeStyle:axes.xaxis.borderColor, lineWidth:axes.xaxis.borderWidth});
drawLine (this._left, this._bottom, this._left, this._top, {lineCap:'round', strokeStyle:axes.yaxis.borderColor, lineWidth:axes.yaxis.borderWidth});
}
}
// ctx.lineWidth = this.borderWidth;
// ctx.strokeStyle = this.borderColor;
// ctx.strokeRect(this._left, this._top, this._width, this._height);
ctx.restore();
ctx = null;
axes = null;
};
})(jQuery);