Tip3.html
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<!DOCTYPE html>
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<title>The source code</title>
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<pre class="prettyprint lang-js"><span id='Ext-chart-Tip'>/**
</span> * @class Ext.chart.Tip
* Provides tips for Ext.chart.series.Series.
*/
Ext.define('Ext.chart.Tip', {
/* Begin Definitions */
requires: ['Ext.tip.ToolTip', 'Ext.chart.TipSurface'],
/* End Definitions */
constructor: function(config) {
var me = this,
surface,
sprites,
tipSurface;
if (config.tips) {
me.tipTimeout = null;
me.tipConfig = Ext.apply({}, config.tips, {
renderer: Ext.emptyFn,
constrainPosition: true,
autoHide: true
});
me.tooltip = new Ext.tip.ToolTip(me.tipConfig);
me.chart.surface.on('mousemove', me.tooltip.onMouseMove, me.tooltip);
me.chart.surface.on('mouseleave', function() {
me.hideTip();
});
if (me.tipConfig.surface) {
//initialize a surface
surface = me.tipConfig.surface;
sprites = surface.sprites;
tipSurface = new Ext.chart.TipSurface({
id: 'tipSurfaceComponent',
sprites: sprites
});
if (surface.width && surface.height) {
tipSurface.setSize(surface.width, surface.height);
}
me.tooltip.add(tipSurface);
me.spriteTip = tipSurface;
}
}
},
showTip: function(item) {
var me = this,
tooltip,
spriteTip,
tipConfig,
trackMouse,
sprite,
surface,
surfaceExt,
pos,
x,
y;
if (!me.tooltip) {
return;
}
clearTimeout(me.tipTimeout);
tooltip = me.tooltip;
spriteTip = me.spriteTip;
tipConfig = me.tipConfig;
trackMouse = tooltip.trackMouse;
if (!trackMouse) {
tooltip.trackMouse = true;
sprite = item.sprite;
surface = sprite.surface;
surfaceExt = Ext.get(surface.getId());
if (surfaceExt) {
pos = surfaceExt.getXY();
x = pos[0] + (sprite.attr.x || 0) + (sprite.attr.translation && sprite.attr.translation.x || 0);
y = pos[1] + (sprite.attr.y || 0) + (sprite.attr.translation && sprite.attr.translation.y || 0);
tooltip.targetXY = [x, y];
}
}
if (spriteTip) {
tipConfig.renderer.call(tooltip, item.storeItem, item, spriteTip.surface);
} else {
tipConfig.renderer.call(tooltip, item.storeItem, item);
}
tooltip.show();
tooltip.trackMouse = trackMouse;
},
hideTip: function(item) {
var tooltip = this.tooltip;
if (!tooltip) {
return;
}
clearTimeout(this.tipTimeout);
this.tipTimeout = setTimeout(function() {
tooltip.hide();
}, 0);
}
});</pre>
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