www.gusucode.com > Piwik 网站流量统计系统 v2.9.1PHP源码程序 > Piwik 网站流量统计系统 v2.9.1/How to install Piwik.html/piwik/libs/jqplot/plugins/jqplot.categoryAxisRenderer.js
/**
* jqPlot
* Pure JavaScript plotting plugin using jQuery
*
* Version: @VERSION
* Revision: @REVISION
*
* Copyright (c) 2009-2013 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: $.jqplot.CategoryAxisRenderer
* A plugin for jqPlot to render a category style axis, with equal pixel spacing between y data values of a series.
*
* To use this renderer, include the plugin in your source
* > <script type="text/javascript" language="javascript" src="plugins/jqplot.categoryAxisRenderer.js"></script>
*
* and supply the appropriate options to your plot
*
* > {axes:{xaxis:{renderer:$.jqplot.CategoryAxisRenderer}}}
**/
$.jqplot.CategoryAxisRenderer = function(options) {
$.jqplot.LinearAxisRenderer.call(this);
// prop: sortMergedLabels
// True to sort tick labels when labels are created by merging
// x axis values from multiple series. That is, say you have
// two series like:
// > line1 = [[2006, 4], [2008, 9], [2009, 16]];
// > line2 = [[2006, 3], [2007, 7], [2008, 6]];
// If no label array is specified, tick labels will be collected
// from the x values of the series. With sortMergedLabels
// set to true, tick labels will be:
// > [2006, 2007, 2008, 2009]
// With sortMergedLabels set to false, tick labels will be:
// > [2006, 2008, 2009, 2007]
//
// Note, this property is specified on the renderOptions for the
// axes when creating a plot:
// > axes:{xaxis:{renderer:$.jqplot.CategoryAxisRenderer, rendererOptions:{sortMergedLabels:true}}}
this.sortMergedLabels = false;
};
$.jqplot.CategoryAxisRenderer.prototype = new $.jqplot.LinearAxisRenderer();
$.jqplot.CategoryAxisRenderer.prototype.constructor = $.jqplot.CategoryAxisRenderer;
$.jqplot.CategoryAxisRenderer.prototype.init = function(options){
this.groups = 1;
this.groupLabels = [];
this._groupLabels = [];
this._grouped = false;
this._barsPerGroup = null;
this.reverse = false;
// prop: tickRenderer
// A class of a rendering engine for creating the ticks labels displayed on the plot,
// See <$.jqplot.AxisTickRenderer>.
// this.tickRenderer = $.jqplot.AxisTickRenderer;
// this.labelRenderer = $.jqplot.AxisLabelRenderer;
$.extend(true, this, {tickOptions:{formatString:'%d'}}, options);
var db = this._dataBounds;
// Go through all the series attached to this axis and find
// the min/max bounds for this axis.
for (var i=0; i<this._series.length; i++) {
var s = this._series[i];
if (s.groups) {
this.groups = s.groups;
}
var d = s.data;
for (var j=0; j<d.length; j++) {
if (this.name == 'xaxis' || this.name == 'x2axis') {
if (d[j][0] < db.min || db.min == null) {
db.min = d[j][0];
}
if (d[j][0] > db.max || db.max == null) {
db.max = d[j][0];
}
}
else {
if (d[j][1] < db.min || db.min == null) {
db.min = d[j][1];
}
if (d[j][1] > db.max || db.max == null) {
db.max = d[j][1];
}
}
}
}
if (this.groupLabels.length) {
this.groups = this.groupLabels.length;
}
};
$.jqplot.CategoryAxisRenderer.prototype.createTicks = function() {
// we're are operating on an axis here
var ticks = this._ticks;
var userTicks = this.ticks;
var name = this.name;
// databounds were set on axis initialization.
var db = this._dataBounds;
var dim, interval;
var min, max;
var pos1, pos2;
var tt, i;
// if we already have ticks, use them.
if (userTicks.length) {
// adjust with blanks if we have groups
if (this.groups > 1 && !this._grouped) {
var l = userTicks.length;
var skip = parseInt(l/this.groups, 10);
var count = 0;
for (var i=skip; i<l; i+=skip) {
userTicks.splice(i+count, 0, ' ');
count++;
}
this._grouped = true;
}
this.min = 0.5;
this.max = userTicks.length + 0.5;
var range = this.max - this.min;
this.numberTicks = 2*userTicks.length + 1;
for (i=0; i<userTicks.length; i++){
tt = this.min + 2 * i * range / (this.numberTicks-1);
// need a marker before and after the tick
var t = new this.tickRenderer(this.tickOptions);
t.showLabel = false;
// t.showMark = true;
t.setTick(tt, this.name);
this._ticks.push(t);
var t = new this.tickRenderer(this.tickOptions);
t.label = userTicks[i];
// t.showLabel = true;
t.showMark = false;
t.showGridline = false;
t.setTick(tt+0.5, this.name);
this._ticks.push(t);
}
// now add the last tick at the end
var t = new this.tickRenderer(this.tickOptions);
t.showLabel = false;
// t.showMark = true;
t.setTick(tt+1, this.name);
this._ticks.push(t);
}
// we don't have any ticks yet, let's make some!
else {
if (name == 'xaxis' || name == 'x2axis') {
dim = this._plotDimensions.width;
}
else {
dim = this._plotDimensions.height;
}
// if min, max and number of ticks specified, user can't specify interval.
if (this.min != null && this.max != null && this.numberTicks != null) {
this.tickInterval = null;
}
// if max, min, and interval specified and interval won't fit, ignore interval.
if (this.min != null && this.max != null && this.tickInterval != null) {
if (parseInt((this.max-this.min)/this.tickInterval, 10) != (this.max-this.min)/this.tickInterval) {
this.tickInterval = null;
}
}
// find out how many categories are in the lines and collect labels
var labels = [];
var numcats = 0;
var min = 0.5;
var max, val;
var isMerged = false;
for (var i=0; i<this._series.length; i++) {
var s = this._series[i];
for (var j=0; j<s.data.length; j++) {
if (this.name == 'xaxis' || this.name == 'x2axis') {
val = s.data[j][0];
}
else {
val = s.data[j][1];
}
if ($.inArray(val, labels) == -1) {
isMerged = true;
numcats += 1;
labels.push(val);
}
}
}
if (isMerged && this.sortMergedLabels) {
if (typeof labels[0] == "string") {
labels.sort();
} else {
labels.sort(function(a,b) { return a - b; });
}
}
// keep a reference to these tick labels to use for redrawing plot (see bug #57)
this.ticks = labels;
// now bin the data values to the right lables.
for (var i=0; i<this._series.length; i++) {
var s = this._series[i];
for (var j=0; j<s.data.length; j++) {
if (this.name == 'xaxis' || this.name == 'x2axis') {
val = s.data[j][0];
}
else {
val = s.data[j][1];
}
// for category axis, force the values into category bins.
// we should have the value in the label array now.
var idx = $.inArray(val, labels)+1;
if (this.name == 'xaxis' || this.name == 'x2axis') {
s.data[j][0] = idx;
}
else {
s.data[j][1] = idx;
}
}
}
// adjust with blanks if we have groups
if (this.groups > 1 && !this._grouped) {
var l = labels.length;
var skip = parseInt(l/this.groups, 10);
var count = 0;
for (var i=skip; i<l; i+=skip+1) {
labels[i] = ' ';
}
this._grouped = true;
}
max = numcats + 0.5;
if (this.numberTicks == null) {
this.numberTicks = 2*numcats + 1;
}
var range = max - min;
this.min = min;
this.max = max;
var track = 0;
// todo: adjust this so more ticks displayed.
var maxVisibleTicks = parseInt(3+dim/10, 10);
var skip = parseInt(numcats/maxVisibleTicks, 10);
if (this.tickInterval == null) {
this.tickInterval = range / (this.numberTicks-1);
}
// if tickInterval is specified, we will ignore any computed maximum.
for (var i=0; i<this.numberTicks; i++){
tt = this.min + i * this.tickInterval;
var t = new this.tickRenderer(this.tickOptions);
// if even tick, it isn't a category, it's a divider
if (i/2 == parseInt(i/2, 10)) {
t.showLabel = false;
t.showMark = true;
}
else {
if (skip>0 && track<skip) {
t.showLabel = false;
track += 1;
}
else {
t.showLabel = true;
track = 0;
}
t.label = t.formatter(t.formatString, labels[(i-1)/2]);
t.showMark = false;
t.showGridline = false;
}
t.setTick(tt, this.name);
this._ticks.push(t);
}
}
};
// called with scope of axis
$.jqplot.CategoryAxisRenderer.prototype.draw = function(ctx, plot) {
if (this.show) {
// populate the axis label and value properties.
// createTicks is a method on the renderer, but
// call it within the scope of the axis.
this.renderer.createTicks.call(this);
// fill a div with axes labels in the right direction.
// Need to pregenerate each axis to get its bounds and
// position it and the labels correctly on the plot.
var dim=0;
var temp;
// Added for theming.
if (this._elem) {
// this._elem.empty();
// Memory Leaks patch
this._elem.emptyForce();
}
this._elem = this._elem || $('<div class="jqplot-axis jqplot-'+this.name+'" style="position:absolute;"></div>');
if (this.name == 'xaxis' || this.name == 'x2axis') {
this._elem.width(this._plotDimensions.width);
}
else {
this._elem.height(this._plotDimensions.height);
}
// create a _label object.
this.labelOptions.axis = this.name;
this._label = new this.labelRenderer(this.labelOptions);
if (this._label.show) {
var elem = this._label.draw(ctx, plot);
elem.appendTo(this._elem);
}
var t = this._ticks;
for (var i=0; i<t.length; i++) {
var tick = t[i];
if (tick.showLabel && (!tick.isMinorTick || this.showMinorTicks)) {
var elem = tick.draw(ctx, plot);
elem.appendTo(this._elem);
}
}
this._groupLabels = [];
// now make group labels
for (var i=0; i<this.groupLabels.length; i++)
{
var elem = $('<div style="position:absolute;" class="jqplot-'+this.name+'-groupLabel"></div>');
elem.html(this.groupLabels[i]);
this._groupLabels.push(elem);
elem.appendTo(this._elem);
}
}
return this._elem;
};
// called with scope of axis
$.jqplot.CategoryAxisRenderer.prototype.set = function() {
var dim = 0;
var temp;
var w = 0;
var h = 0;
var lshow = (this._label == null) ? false : this._label.show;
if (this.show) {
var t = this._ticks;
for (var i=0; i<t.length; i++) {
var tick = t[i];
if (tick.showLabel && (!tick.isMinorTick || this.showMinorTicks)) {
if (this.name == 'xaxis' || this.name == 'x2axis') {
temp = tick._elem.outerHeight(true);
}
else {
temp = tick._elem.outerWidth(true);
}
if (temp > dim) {
dim = temp;
}
}
}
var dim2 = 0;
for (var i=0; i<this._groupLabels.length; i++) {
var l = this._groupLabels[i];
if (this.name == 'xaxis' || this.name == 'x2axis') {
temp = l.outerHeight(true);
}
else {
temp = l.outerWidth(true);
}
if (temp > dim2) {
dim2 = temp;
}
}
if (lshow) {
w = this._label._elem.outerWidth(true);
h = this._label._elem.outerHeight(true);
}
if (this.name == 'xaxis') {
dim += dim2 + h;
this._elem.css({'height':dim+'px', left:'0px', bottom:'0px'});
}
else if (this.name == 'x2axis') {
dim += dim2 + h;
this._elem.css({'height':dim+'px', left:'0px', top:'0px'});
}
else if (this.name == 'yaxis') {
dim += dim2 + w;
this._elem.css({'width':dim+'px', left:'0px', top:'0px'});
if (lshow && this._label.constructor == $.jqplot.AxisLabelRenderer) {
this._label._elem.css('width', w+'px');
}
}
else {
dim += dim2 + w;
this._elem.css({'width':dim+'px', right:'0px', top:'0px'});
if (lshow && this._label.constructor == $.jqplot.AxisLabelRenderer) {
this._label._elem.css('width', w+'px');
}
}
}
};
// called with scope of axis
$.jqplot.CategoryAxisRenderer.prototype.pack = function(pos, offsets) {
var ticks = this._ticks;
var max = this.max;
var min = this.min;
var offmax = offsets.max;
var offmin = offsets.min;
var lshow = (this._label == null) ? false : this._label.show;
var i;
for (var p in pos) {
this._elem.css(p, pos[p]);
}
this._offsets = offsets;
// pixellength will be + for x axes and - for y axes becasue pixels always measured from top left.
var pixellength = offmax - offmin;
var unitlength = max - min;
if (!this.reverse) {
// point to unit and unit to point conversions references to Plot DOM element top left corner.
this.u2p = function(u){
return (u - min) * pixellength / unitlength + offmin;
};
this.p2u = function(p){
return (p - offmin) * unitlength / pixellength + min;
};
if (this.name == 'xaxis' || this.name == 'x2axis'){
this.series_u2p = function(u){
return (u - min) * pixellength / unitlength;
};
this.series_p2u = function(p){
return p * unitlength / pixellength + min;
};
}
else {
this.series_u2p = function(u){
return (u - max) * pixellength / unitlength;
};
this.series_p2u = function(p){
return p * unitlength / pixellength + max;
};
}
}
else {
// point to unit and unit to point conversions references to Plot DOM element top left corner.
this.u2p = function(u){
return offmin + (max - u) * pixellength / unitlength;
};
this.p2u = function(p){
return min + (p - offmin) * unitlength / pixellength;
};
if (this.name == 'xaxis' || this.name == 'x2axis'){
this.series_u2p = function(u){
return (max - u) * pixellength / unitlength;
};
this.series_p2u = function(p){
return p * unitlength / pixellength + max;
};
}
else {
this.series_u2p = function(u){
return (min - u) * pixellength / unitlength;
};
this.series_p2u = function(p){
return p * unitlength / pixellength + min;
};
}
}
if (this.show) {
if (this.name == 'xaxis' || this.name == 'x2axis') {
for (i=0; i<ticks.length; i++) {
var t = ticks[i];
if (t.show && t.showLabel) {
var shim;
if (t.constructor == $.jqplot.CanvasAxisTickRenderer && t.angle) {
// will need to adjust auto positioning based on which axis this is.
var temp = (this.name == 'xaxis') ? 1 : -1;
switch (t.labelPosition) {
case 'auto':
// position at end
if (temp * t.angle < 0) {
shim = -t.getWidth() + t._textRenderer.height * Math.sin(-t._textRenderer.angle) / 2;
}
// position at start
else {
shim = -t._textRenderer.height * Math.sin(t._textRenderer.angle) / 2;
}
break;
case 'end':
shim = -t.getWidth() + t._textRenderer.height * Math.sin(-t._textRenderer.angle) / 2;
break;
case 'start':
shim = -t._textRenderer.height * Math.sin(t._textRenderer.angle) / 2;
break;
case 'middle':
shim = -t.getWidth()/2 + t._textRenderer.height * Math.sin(-t._textRenderer.angle) / 2;
break;
default:
shim = -t.getWidth()/2 + t._textRenderer.height * Math.sin(-t._textRenderer.angle) / 2;
break;
}
}
else {
shim = -t.getWidth()/2;
}
var val = this.u2p(t.value) + shim + 'px';
t._elem.css('left', val);
t.pack();
}
}
var labeledge=['bottom', 0];
if (lshow) {
var w = this._label._elem.outerWidth(true);
this._label._elem.css('left', offmin + pixellength/2 - w/2 + 'px');
if (this.name == 'xaxis') {
this._label._elem.css('bottom', '0px');
labeledge = ['bottom', this._label._elem.outerHeight(true)];
}
else {
this._label._elem.css('top', '0px');
labeledge = ['top', this._label._elem.outerHeight(true)];
}
this._label.pack();
}
// draw the group labels
var step = parseInt(this._ticks.length/this.groups, 10) + 1;
for (i=0; i<this._groupLabels.length; i++) {
var mid = 0;
var count = 0;
for (var j=i*step; j<(i+1)*step; j++) {
if (j >= this._ticks.length-1) continue; // the last tick does not exist as there is no other group in order to have an empty one.
if (this._ticks[j]._elem && this._ticks[j].label != " ") {
var t = this._ticks[j]._elem;
var p = t.position();
mid += p.left + t.outerWidth(true)/2;
count++;
}
}
mid = mid/count;
this._groupLabels[i].css({'left':(mid - this._groupLabels[i].outerWidth(true)/2)});
this._groupLabels[i].css(labeledge[0], labeledge[1]);
}
}
else {
for (i=0; i<ticks.length; i++) {
var t = ticks[i];
if (t.show && t.showLabel) {
var shim;
if (t.constructor == $.jqplot.CanvasAxisTickRenderer && t.angle) {
// will need to adjust auto positioning based on which axis this is.
var temp = (this.name == 'yaxis') ? 1 : -1;
switch (t.labelPosition) {
case 'auto':
// position at end
case 'end':
if (temp * t.angle < 0) {
shim = -t._textRenderer.height * Math.cos(-t._textRenderer.angle) / 2;
}
else {
shim = -t.getHeight() + t._textRenderer.height * Math.cos(t._textRenderer.angle) / 2;
}
break;
case 'start':
if (t.angle > 0) {
shim = -t._textRenderer.height * Math.cos(-t._textRenderer.angle) / 2;
}
else {
shim = -t.getHeight() + t._textRenderer.height * Math.cos(t._textRenderer.angle) / 2;
}
break;
case 'middle':
// if (t.angle > 0) {
// shim = -t.getHeight()/2 + t._textRenderer.height * Math.sin(-t._textRenderer.angle) / 2;
// }
// else {
// shim = -t.getHeight()/2 - t._textRenderer.height * Math.sin(t._textRenderer.angle) / 2;
// }
shim = -t.getHeight()/2;
break;
default:
shim = -t.getHeight()/2;
break;
}
}
else {
shim = -t.getHeight()/2;
}
var val = this.u2p(t.value) + shim + 'px';
t._elem.css('top', val);
t.pack();
}
}
var labeledge=['left', 0];
if (lshow) {
var h = this._label._elem.outerHeight(true);
this._label._elem.css('top', offmax - pixellength/2 - h/2 + 'px');
if (this.name == 'yaxis') {
this._label._elem.css('left', '0px');
labeledge = ['left', this._label._elem.outerWidth(true)];
}
else {
this._label._elem.css('right', '0px');
labeledge = ['right', this._label._elem.outerWidth(true)];
}
this._label.pack();
}
// draw the group labels, position top here, do left after label position.
var step = parseInt(this._ticks.length/this.groups, 10) + 1; // step is one more than before as we don't want to have overlaps in loops
for (i=0; i<this._groupLabels.length; i++) {
var mid = 0;
var count = 0;
for (var j=i*step; j<(i+1)*step; j++) { // j must never reach (i+1)*step as we don't want to have overlap between loops
if (j >= this._ticks.length-1) continue; // the last tick does not exist as there is no other group in order to have an empty one.
if (this._ticks[j]._elem && this._ticks[j].label != " ") {
var t = this._ticks[j]._elem;
var p = t.position();
mid += p.top + t.outerHeight()/2;
count++;
}
}
mid = mid/count;
this._groupLabels[i].css({'top':mid - this._groupLabels[i].outerHeight()/2});
this._groupLabels[i].css(labeledge[0], labeledge[1]);
}
}
}
};
})(jQuery);