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/**
* o------------------------------------------------------------------------------o
* | This file is part of the RGraph package - you can learn more at: |
* | |
* | http://www.rgraph.net |
* | |
* | This package is licensed under the RGraph license. For all kinds of business |
* | purposes there is a small one-time licensing fee to pay and for non |
* | commercial purposes it is free to use. You can read the full license here: |
* | |
* | http://www.rgraph.net/LICENSE.txt |
* o------------------------------------------------------------------------------o
*/
/**
* Initialise the various objects
*/
if (typeof(RGraph) == 'undefined') RGraph = {isRGraph:true,type:'common'};
/**
* This is the window click event listener. It redraws all canvas tags on the page.
*/
RGraph.InstallWindowMousedownListener = function (obj)
{
window.onmousedown = function (e)
{
/**
* For firefox add the window.event object
*/
if (navigator.userAgent.indexOf('Firefox') >= 0) window.event = e;
e = RGraph.FixEventObject(e);
/**
* First fire the user specified window.onmousedown_rgraph listener if there is any.
*/
if (typeof(window.onmousedown_rgraph) == 'function') {
window.onmousedown_rgraph(e);
}
// =======================================================
// User specified click event
// =======================================================
/*
var obj = RGraph.ObjectRegistry.getObjectByXY(e);
if (!RGraph.is_null(obj)) {
var id = obj.id;
if (obj.Get('chart.events.click') && e.target.id == id) {
var shape = obj.getShape(e);
if (shape) {
var func = obj.Get('chart.events.click');
func(e, shape);
}
}
}
*/
if (RGraph.HideTooltip && RGraph.Registry.Get('chart.tooltip')) {
RGraph.Clear(RGraph.Registry.Get('chart.tooltip').__canvas__);
RGraph.Redraw();
RGraph.HideTooltip();
}
}
}
/**
* This is the window click event listener. It redraws all canvas tags on the page.
*/
RGraph.InstallWindowMouseupListener = function (obj)
{
window.onmouseup = function (e)
{
/**
* For firefox add the window.event object
*/
if (navigator.userAgent.indexOf('Firefox') >= 0) window.event = e;
e = RGraph.FixEventObject(e);
/**
* Stop any annotating that may be going on
*/
if (RGraph.Annotating_window_onmouseup) {
RGraph.Annotating_window_onmouseup(e);
return;
}
/**
* First fire the user specified window.onmouseup_rgraph listener if there is any
*/
if (typeof(window.onmouseup_rgraph) == 'function') {
window.onmouseup_rgraph(e);
}
/**
* End adjusting
*/
if (RGraph.Registry.Get('chart.adjusting')
|| RGraph.Registry.Get('chart.adjusting.gantt'))
{
RGraph.FireCustomEvent(RGraph.Registry.Get('chart.adjusting'), 'onadjustend');
RGraph.Registry.Set('chart.adjusting', null);
RGraph.Registry.Set('chart.adjusting.shape', null);
RGraph.Registry.Set('chart.adjusting.gantt', null);
}
// ==============================================
// Finally, redraw the chart
// ==============================================
var tags = document.getElementsByTagName('canvas');
for (var i=0; i<tags.length; ++i) {
if (tags[i].__object__ && tags[i].__object__.isRGraph) {
if (!tags[i].__object__.Get('chart.annotatable')) {
if (!tags[i].__rgraph_trace_cover__ && !noredraw) {
RGraph.Clear(tags[i]);
} else {
var noredraw = true;
}
}
}
}
if (!noredraw) {
RGraph.Redraw();
}
}
}
/**
* This is the canvas mouseup event listener. It installs the mouseup event for the
* canvas. The mouseup event then checks the relevant object.
*
* @param object obj The chart object
*/
RGraph.InstallCanvasMouseupListener = function (obj)
{
obj.canvas.onmouseup = function (e)
{
/**
* For firefox add the window.event object
*/
if (navigator.userAgent.indexOf('Firefox') >= 0) window.event = e;
e = RGraph.FixEventObject(e);
/**
* First fire the user specified onmouseup listener if there is any
*/
if (typeof(e.target.onmouseup_rgraph) == 'function') {
e.target.onmouseup_rgraph(e);
}
// *************************************************************************
// Tooltips
// *************************************************************************
var objects = RGraph.ObjectRegistry.getObjectsByXY(e);
if (objects) {
for (var i=0; i<objects.length; ++i) {
var obj = objects[i];
var id = objects[i].id;
if (!RGraph.is_null(obj) && RGraph.Tooltip) {
var shape = obj.getShape(e);
if (shape && shape['tooltip']) {
var text = shape['tooltip'];
if (text) {
var type = shape['object'].type;
if ( type == 'line'
|| type == 'rscatter'
|| (type == 'scatter' && !obj.Get('chart.boxplot'))
|| type == 'radar') {
var canvasXY = RGraph.getCanvasXY(obj.canvas);
var x = canvasXY[0] + shape['x'];
var y = canvasXY[1] + shape['y'];
} else {
var x = e.pageX;
var y = e.pageY;
}
if (obj.Get('chart.tooltips.coords.page')) {
var x = e.pageX;
var y = e.pageY;
}
RGraph.Clear(obj.canvas);
RGraph.Redraw();
obj.Highlight(shape);
RGraph.Registry.Set('chart.tooltip.shape', shape);
RGraph.Tooltip(obj, text, x, y, shape['index'], e);
// Add the shape that triggered the tooltip
if (RGraph.Registry.Get('chart.tooltip')) {
RGraph.Registry.Get('chart.tooltip').__shape__ = shape;
RGraph.EvaluateCursor(e);
}
e.cancelBubble = true;
e.stopPropagation();
return false;
}
}
}
}
// =========================================================================
// Interactive key
// ========================================================================
if (typeof(InteractiveKey_line_mouseup) == 'function') InteractiveKey_line_mouseup(e);
if (typeof(InteractiveKey_pie_mouseup) == 'function') InteractiveKey_pie_mouseup(e);
}
}
}
/**
* This is the canvas mousemove event listener.
*
* @param object obj The chart object
*/
RGraph.InstallCanvasMousemoveListener = function (obj)
{
obj.canvas.onmousemove = function (e)
{
/**
* For firefox add the window.event object
*/
if (navigator.userAgent.indexOf('Firefox') >= 0) window.event = e;
e = RGraph.FixEventObject(e);
/**
* First fire the user specified onmousemove listener if there is any
*/
if (typeof(e.target.onmousemove_rgraph) == 'function') {
e.target.onmousemove_rgraph(e);
}
/**
* Go through all the objects and check them to see if anything needs doing
*/
var objects = RGraph.ObjectRegistry.getObjectsByXY(e);
if (objects && objects.length) {
for (var i=0; i<objects.length; ++i) {
var obj = objects[i];
var id = obj.id;
if (!obj.getShape) {
continue;
}
var shape = obj.getShape(e);
// ================================================================================================ //
// This facilitates the chart.events.mousemove option
// ================================================================================================ //
var func = obj.Get('chart.events.mousemove');
/**
* This bit saves the current pointer style if there isn't one already saved
*/
if (shape && typeof(func) == 'function') {
if (obj.Get('chart.events.mousemove.revertto') == null) {
obj.Set('chart.events.mousemove.revertto', e.target.style.cursor);
}
func(e, shape);
} else if (typeof(obj.Get('chart.events.mousemove.revertto')) == 'string') {
RGraph.cursor.push('default');
obj.Set('chart.events.mousemove.revertto', null);
}
// ================================================================================================ //
// Tooltips
// ================================================================================================ //
if ( shape
&& (obj.Get('chart.tooltips') && obj.Get('chart.tooltips')[shape['index']] || shape['tooltip'])
&& obj.Get('chart.tooltips.event') == 'onmousemove'
&& (RGraph.is_null(RGraph.Registry.Get('chart.tooltip')) || RGraph.Registry.Get('chart.tooltip').__index__ != shape['index'] || (typeof(shape['dataset']) == 'number' && shape['dataset'] != RGraph.Registry.Get('chart.tooltip').__shape__['dataset']) || obj.uid != RGraph.Registry.Get('chart.tooltip').__object__.uid)
) {
RGraph.Clear(obj.canvas);
RGraph.Redraw();
obj.canvas.onmouseup(e);
return;
}
// ================================================================================================ //
// Adjusting
// ================================================================================================ //
if (obj && obj.Get('chart.adjustable')) {
switch (obj.type) {
case 'bar': obj.Adjusting_mousemove(e); break;
case 'gauge': obj.Adjusting_mousemove(e); break;
case 'gantt': obj.Adjusting_mousemove(e); break;
case 'hprogress': obj.Adjusting_mousemove(e); break;
case 'line': obj.Adjusting_mousemove(e); break;
case 'thermometer': obj.Adjusting_mousemove(e); break;
case 'vprogress': obj.Adjusting_mousemove(e); break;
default: obj.Adjusting_mousemove(e); break;
}
}
}
}
// ================================================================================================ //
// Crosshairs
// ================================================================================================ //
if (e.target && e.target.__object__.Get('chart.crosshairs')) {
RGraph.DrawCrosshairs(e, e.target.__object__);
}
// ================================================================================================ //
// Interactive key
// ================================================================================================ //
if (typeof(InteractiveKey_line_mousemove) == 'function') InteractiveKey_line_mousemove(e);
if (typeof(InteractiveKey_pie_mousemove) == 'function') InteractiveKey_pie_mousemove(e);
// ================================================================================================ //
// Annotating
// ================================================================================================ //
if (e.target.__object__.Get('chart.annotatable') && RGraph.Annotating_canvas_onmousemove) {
RGraph.Annotating_canvas_onmousemove(e);
}
/**
* Determine the pointer
*/
RGraph.EvaluateCursor(e);
}
}
/**
* This is the canvas mousedown event listener.
*
* @param object obj The chart object
*/
RGraph.InstallCanvasMousedownListener = function (obj)
{
obj.canvas.onmousedown = function (e)
{
/**
* For firefox add the window.event object
*/
if (navigator.userAgent.indexOf('Firefox') >= 0) window.event = e;
e = RGraph.FixEventObject(e);
/**
* First fire the user specified onmousedown listener if there is any
*/
if (typeof(e.target.onmousedown_rgraph) == 'function') {
e.target.onmousedown_rgraph(e);
}
/**
* Annotating
*/
if (e.target.__object__.Get('chart.annotatable') && RGraph.Annotating_canvas_onmousedown) {
RGraph.Annotating_canvas_onmousedown(e);
return;
}
var obj = RGraph.ObjectRegistry.getObjectByXY(e);
if (obj) {
var id = obj.id;
/*************************************************************
* Handle adjusting for all object types
*************************************************************/
if (obj && obj.isRGraph && obj.Get('chart.adjustable')) {
/**
* Check the cursor is in the correct area
*/
var obj = RGraph.ObjectRegistry.getObjectByXY(e);
if (obj && obj.isRGraph) {
// If applicable, get the appropriate shape and store it in the registry
switch (obj.type) {
case 'bar': var shape = obj.getShapeByX(e); break;
case 'gantt':
var shape = obj.getShape(e);
if (shape) {
var mouseXY = RGraph.getMouseXY(e);
RGraph.Registry.Set('chart.adjusting.gantt', {
'index': shape['index'],
'object': obj,
'mousex': mouseXY[0],
'mousey': mouseXY[1],
'event_start': obj.Get('chart.events')[shape['index']][0],
'event_duration': obj.Get('chart.events')[shape['index']][1],
'mode': (mouseXY[0] > (shape['x'] + shape['width'] - 5) ? 'resize' : 'move'),
'shape': shape
});
}
break;
case 'line': var shape = obj.getShape(e); break;
default: var shape = null;
}
RGraph.Registry.Set('chart.adjusting.shape', shape);
// Fire the onadjustbegin event
RGraph.FireCustomEvent(obj, 'onadjustbegin');
RGraph.Registry.Set('chart.adjusting', obj);
// Liberally redraw the canvas
RGraph.Clear(obj.canvas);
RGraph.Redraw();
// Call the mousemove event listener so that the canvas is adjusted even though the mouse isn't moved
obj.canvas.onmousemove(e);
}
}
RGraph.Clear(obj.canvas);
RGraph.Redraw();
}
}
}
/**
* This is the canvas click event listener. Used by the pseudo event listener
*
* @param object obj The chart object
*/
RGraph.InstallCanvasClickListener = function (obj)
{
obj.canvas.onclick = function (e)
{
/**
* For firefox add the window.event object
*/
if (navigator.userAgent.indexOf('Firefox') >= 0) window.event = e;
e = RGraph.FixEventObject(e);
/**
* First fire the user specified onmousedown listener if there is any
*/
if (typeof(e.target.onclick_rgraph) == 'function') {
e.target.onclick_rgraph(e);
}
var objects = RGraph.ObjectRegistry.getObjectsByXY(e);
for (var i=0; i<objects.length; ++i) {
var obj = objects[i];
var id = obj.id;
var shape = obj.getShape(e);
/**
* This bit saves the current pointer style if there isn't one already saved
*/
var func = obj.Get('chart.events.click');
if (shape && typeof(func) == 'function') {
func(e, shape);
/**
* If objects are layered on top of each other this return
* stops objects underneath from firing once the "top"
* objects user event has fired
*/
return;
}
}
}
}
/**
* This function evaluates the various cursor settings and if there's one for pointer, changes it to that
*/
RGraph.EvaluateCursor = function (e)
{
var mouseXY = RGraph.getMouseXY(e);
var mouseX = mouseXY[0];
var mouseY = mouseXY[1];
/**
* Tooltips cause the mouse pointer to change
*/
var objects = RGraph.ObjectRegistry.getObjectsByXY(e);
for (var i=0; i<objects.length; ++i) {
var obj = objects[i]
var id = obj.id;
if (!RGraph.is_null(obj)) {
if (obj.getShape && obj.getShape(e)) {
var shape = obj.getShape(e);
if (obj.Get('chart.tooltips')) {
var text = RGraph.parseTooltipText(obj.Get('chart.tooltips'), shape['index']);
if (text) {
var pointer = true;
}
}
}
/**
* Now go through the key coords and see if it's over that.
*/
if (!RGraph.is_null(obj) && obj.Get('chart.key.interactive')) {
for (var j=0; j<obj.coords.key.length; ++j) {
if (mouseX > obj.coords.key[j][0] && mouseX < (obj.coords.key[j][0] + obj.coords.key[j][2]) && mouseY > obj.coords.key[j][1] && mouseY < (obj.coords.key[j][1] + obj.coords.key[j][3])) {
var pointer = true;
}
}
}
}
/**
* It can be specified in the user mousemove event
*/
if (!RGraph.is_null(shape) && !RGraph.is_null(obj) && !RGraph.is_null(obj.Get('chart.events.mousemove')) && typeof(obj.Get('chart.events.mousemove')) == 'function') {
var str = (obj.Get('chart.events.mousemove')).toString();
if (str.match(/pointer/) && str.match(/cursor/) && str.match(/style/)) {
var pointer = true;
}
}
}
/**
* Is the chart resizable? Go through all the objects again
*/
var objects = RGraph.ObjectRegistry.objects.byCanvasID;
for (var i=0; i<objects.length; ++i) {
if (objects[i] && objects[i][1].Get('chart.resizable')) {
var resizable = true;
}
}
if (resizable && mouseX > (e.target.width - 32) && mouseY > (e.target.height - 16)) {
pointer = true;
}
if (pointer) {
e.target.style.cursor = 'pointer';
} else if (e.target.style.cursor == 'pointer') {
e.target.style.cursor = 'default';
} else {
e.target.style.cursor = null;
}
// =========================================================================
// Resize cursor
// =========================================================================
if (resizable && mouseX >= (e.target.width - 15) && mouseY >= (e.target.height - 15)) {
e.target.style.cursor = 'move';
}
// =========================================================================
// Interactive key
// =========================================================================
if (typeof(mouse_over_key) == 'boolean' && mouse_over_key) {
e.target.style.cursor = 'pointer';
}
// =========================================================================
// Gantt chart adjusting
// =========================================================================
if (obj && obj.type == 'gantt' && obj.Get('chart.adjustable')) {
if (obj.getShape && obj.getShape(e)) {
e.target.style.cursor = 'ew-resize';
} else {
e.target.style.cursor = 'default';
}
}
// =========================================================================
// Line chart adjusting
// =========================================================================
if (obj && obj.type == 'line' && obj.Get('chart.adjustable')) {
if (obj.getShape && obj.getShape(e)) {
e.target.style.cursor = 'ns-resize';
} else {
e.target.style.cursor = 'default';
}
}
// =========================================================================
// Annotatable
// =========================================================================
if (e.target.__object__.Get('chart.annotatable')) {
e.target.style.cursor = 'crosshair';
}
}
/**
* This function handles the tooltip text being a string, function
*
* @param mixed tooltip This could be a string or a function. If it's a function it's called and
* the return value is used as the tooltip text
* @param numbr idx The index of the tooltip.
*/
RGraph.parseTooltipText = function (tooltips, idx)
{
// No tooltips
if (!tooltips) {
return null;
}
// Get the tooltip text
if (typeof(tooltips) == 'function') {
var text = tooltips(idx);
// A single tooltip. Only supported by the Scatter chart
} else if (typeof(tooltips) == 'string') {
var text = tooltips;
} else if (typeof(tooltips) == 'object' && typeof(tooltips)[idx] == 'function') {
var text = tooltips[idx](idx);
} else if (typeof(tooltips)[idx] == 'string' && tooltips[idx]) {
var text = tooltips[idx];
} else {
var text = '';
}
if (text == 'undefined') {
text = '';
} else if (text == 'null') {
text = '';
}
// Conditional in case the tooltip file isn't included
return RGraph.getTooltipTextFromDIV ? RGraph.getTooltipTextFromDIV(text) : text;
}
/**
* Draw crosshairs if enabled
*
* @param object obj The graph object (from which we can get the context and canvas as required)
*/
RGraph.DrawCrosshairs = function (e, obj)
{
var e = RGraph.FixEventObject(e);
var width = obj.canvas.width;
var height = obj.canvas.height;
var mouseXY = RGraph.getMouseXY(e);
var x = mouseXY[0];
var y = mouseXY[1];
RGraph.RedrawCanvas(obj.canvas);
if ( x >= obj.gutterLeft
&& y >= obj.gutterTop
&& x <= (width - obj.gutterRight)
&& y <= (height - obj.gutterBottom)
) {
var linewidth = obj.Get('chart.crosshairs.linewidth') ? obj.Get('chart.crosshairs.linewidth') : 1;
obj.context.lineWidth = linewidth ? linewidth : 1;
obj.context.beginPath();
obj.context.strokeStyle = obj.Get('chart.crosshairs.color');
// Draw a top vertical line
if (obj.Get('chart.crosshairs.vline')) {
obj.context.moveTo(AA(this, x), AA(this, obj.gutterTop));
obj.context.lineTo(AA(this, x), AA(this, height - obj.gutterBottom));
}
// Draw a horizontal line
if (obj.Get('chart.crosshairs.hline')) {
obj.context.moveTo(AA(this, obj.gutterLeft), AA(this, y));
obj.context.lineTo(AA(this, width - obj.gutterRight), AA(this, y));
}
obj.context.stroke();
/**
* Need to show the coords?
*/
if (obj.Get('chart.crosshairs.coords')) {
if (obj.type == 'scatter') {
var xCoord = (((x - obj.Get('chart.gutter.left')) / (obj.canvas.width - obj.gutterLeft - obj.gutterRight)) * (obj.Get('chart.xmax') - obj.Get('chart.xmin'))) + obj.Get('chart.xmin');
xCoord = xCoord.toFixed(obj.Get('chart.scale.decimals'));
var yCoord = obj.max - (((y - obj.Get('chart.gutter.top')) / (obj.canvas.height - obj.gutterTop - obj.gutterBottom)) * obj.max);
if (obj.type == 'scatter' && obj.Get('chart.xaxispos') == 'center') {
yCoord = (yCoord - (obj.max / 2)) * 2;
}
yCoord = yCoord.toFixed(obj.Get('chart.scale.decimals'));
var div = RGraph.Registry.Get('chart.coordinates.coords.div');
var mouseXY = RGraph.getMouseXY(e);
var canvasXY = RGraph.getCanvasXY(obj.canvas);
if (!div) {
var div = document.createElement('DIV');
div.__object__ = obj;
div.style.position = 'absolute';
div.style.backgroundColor = 'white';
div.style.border = '1px solid black';
div.style.fontFamily = 'Arial, Verdana, sans-serif';
div.style.fontSize = '10pt'
div.style.padding = '2px';
div.style.opacity = 1;
div.style.WebkitBorderRadius = '3px';
div.style.borderRadius = '3px';
div.style.MozBorderRadius = '3px';
document.body.appendChild(div);
RGraph.Registry.Set('chart.coordinates.coords.div', div);
}
// Convert the X/Y pixel coords to correspond to the scale
div.style.opacity = 1;
div.style.display = 'inline';
if (!obj.Get('chart.crosshairs.coords.fixed')) {
div.style.left = Math.max(2, (e.pageX - div.offsetWidth - 3)) + 'px';
div.style.top = Math.max(2, (e.pageY - div.offsetHeight - 3)) + 'px';
} else {
div.style.left = canvasXY[0] + obj.gutterLeft + 3 + 'px';
div.style.top = canvasXY[1] + obj.gutterTop + 3 + 'px';
}
div.innerHTML = '<span style="color: #666">' + obj.Get('chart.crosshairs.coords.labels.x') + ':</span> ' + xCoord + '<br><span style="color: #666">' + obj.Get('chart.crosshairs.coords.labels.y') + ':</span> ' + yCoord;
obj.canvas.addEventListener('mouseout', RGraph.HideCrosshairCoords, false);
obj.canvas.__crosshairs_labels__ = div;
obj.canvas.__crosshairs_x__ = xCoord;
obj.canvas.__crosshairs_y__ = yCoord;
} else {
alert('[RGRAPH] Showing crosshair coordinates is only supported on the Scatter chart');
}
}
/**
* Fire the oncrosshairs custom event
*/
RGraph.FireCustomEvent(obj, 'oncrosshairs');
} else {
RGraph.HideCrosshairCoords();
}
}
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