/** * @class Ext.chart.series.sprite.PieSlice * * Pie slice sprite. */Ext.define('Ext.chart.series.sprite.PieSlice', { alias: 'sprite.pieslice', mixins: { markerHolder: 'Ext.chart.MarkerHolder' }, extend: 'Ext.draw.sprite.Sector', inheritableStatics: { def: { processors: { /** * @cfg {Boolean} [doCallout=true] * 'true' if the pie series uses label callouts. */ doCallout: 'bool', /** * @cfg {String} [label=''] * Label associated with the Pie sprite. */ label: 'string', // @deprecated Use series.label.orientation config instead. // @since 5.0.1 rotateLabels: 'bool', /** * @cfg {Number} [labelOverflowPadding=10] * Padding around labels to determine overlap. * Any negative number allows the labels to overlap. */ labelOverflowPadding: 'number', renderer: 'default' }, defaults: { doCallout: true, rotateLabels: true, label: '', labelOverflowPadding: 10, renderer: null } } }, config: { /** * @private * @cfg {Object} rendererData The object that is passed to the renderer. * * For instance when the PieSlice sprite is used in a Gauge chart, the object * contains the 'store' and 'field' properties, and the 'value' as well * for that one PieSlice that is used to draw the needle of the Gauge. */ rendererData: null, rendererIndex: 0 }, setGradientBBox: function (ctx, rect) { var me = this, attr = me.attr; if (attr.fillStyle.isGradient || attr.strokeStyle.isGradient) { if (attr.constrainGradients) { ctx.setGradientBBox({x: rect[0], y: rect[1], width: rect[2], height: rect[3]}); } else { var midAngle = me.getMidAngle(), margin = attr.margin, cx = attr.centerX, cy = attr.centerY, r = attr.endRho, matrix = attr.matrix, scaleX = matrix.getScaleX(), scaleY = matrix.getScaleY(), w = scaleX * r, h = scaleY * r, bbox = { width: w + w, height: h + h }; if (margin) { cx += margin * Math.cos(midAngle); cy += margin * Math.sin(midAngle); } bbox.x = matrix.x(cx, cy) - w; bbox.y = matrix.y(cx, cy) - h; ctx.setGradientBBox(bbox); } } }, render: function (surface, ctx, clip, rect) { var me = this, attr = me.attr, itemCfg = {}, changes; if (attr.renderer) { itemCfg = { type: 'sector', text: attr.text, centerX: attr.centerX, centerY: attr.centerY, margin: attr.margin, startAngle: Math.min(attr.startAngle, attr.endAngle), endAngle: Math.max(attr.startAngle, attr.endAngle), startRho: Math.min(attr.startRho, attr.endRho), endRho: Math.max(attr.startRho, attr.endRho) }; changes = attr.renderer.call(me, me, itemCfg, me.rendererData, me.rendererIndex); me.setAttributes(changes); me.useAttributes(ctx, clip); } // Draw the sector me.callParent([surface, ctx, clip, rect]); // Draw the labels if (attr.label && me.getBoundMarker('labels')) { me.placeLabel(); } }, placeLabel: function () { var me = this, attr = me.attr, attributeId = me.attr.attributeId, startAngle = Math.min(attr.startAngle, attr.endAngle), endAngle = Math.max(attr.startAngle, attr.endAngle), midAngle = (startAngle + endAngle) * 0.5, margin = attr.margin, centerX = attr.centerX, centerY = attr.centerY, sinMidAngle = Math.sin(midAngle), cosMidAngle = Math.cos(midAngle), startRho = Math.min(attr.startRho, attr.endRho) + margin, endRho = Math.max(attr.startRho, attr.endRho) + margin, midRho = (startRho + endRho) * 0.5, surfaceMatrix = me.surfaceMatrix, labelCfg = me.labelCfg || (me.labelCfg = {}), label = me.getBoundMarker('labels')[0], labelTpl = label.getTemplate(), calloutLine = labelTpl.getCalloutLine(), calloutLineLength = calloutLine && calloutLine.length || 40, labelBox, x, y, changes; surfaceMatrix.appendMatrix(attr.matrix); labelCfg.text = attr.label; x = centerX + cosMidAngle * midRho; y = centerY + sinMidAngle * midRho; labelCfg.x = surfaceMatrix.x(x, y); labelCfg.y = surfaceMatrix.y(x, y); x = centerX + cosMidAngle * endRho; y = centerY + sinMidAngle * endRho; labelCfg.calloutStartX = surfaceMatrix.x(x, y); labelCfg.calloutStartY = surfaceMatrix.y(x, y); x = centerX + cosMidAngle * (endRho + calloutLineLength); y = centerY + sinMidAngle * (endRho + calloutLineLength); labelCfg.calloutPlaceX = surfaceMatrix.x(x, y); labelCfg.calloutPlaceY = surfaceMatrix.y(x, y); if (!attr.rotateLabels) { labelCfg.rotationRads = 0; //<debug> Ext.log.warn("'series.style.rotateLabels' config is deprecated. " + "Use 'series.label.orientation' config instead."); //</debug> } else { switch (labelTpl.attr.orientation) { case 'horizontal': labelCfg.rotationRads = midAngle + Math.atan2( surfaceMatrix.y(1, 0) - surfaceMatrix.y(0, 0), surfaceMatrix.x(1, 0) - surfaceMatrix.x(0, 0) ) + Math.PI/2; break; case 'vertical': labelCfg.rotationRads = midAngle + Math.atan2( surfaceMatrix.y(1, 0) - surfaceMatrix.y(0, 0), surfaceMatrix.x(1, 0) - surfaceMatrix.x(0, 0) ); break; } } labelCfg.calloutColor = (calloutLine && calloutLine.color) || me.attr.fillStyle; if (calloutLine) { if (calloutLine.width) { labelCfg.calloutWidth = calloutLine.width; } } else { labelCfg.calloutHasLine = false; } labelCfg.globalAlpha = attr.globalAlpha * attr.fillOpacity; // If a slice is empty, don't display the label. // This behavior can be overridden by a renderer. if (labelTpl.display !== 'none') { labelCfg.hidden = (attr.startAngle == attr.endAngle); } if (labelTpl.attr.renderer) { changes = labelTpl.attr.renderer.call(me, me.attr.label, label, labelCfg, me.rendererData, me.rendererIndex); if (typeof changes === 'string') { labelCfg.text = changes; } else { Ext.apply(labelCfg, changes); } } me.putMarker('labels', labelCfg, attributeId); labelBox = me.getMarkerBBox('labels', attributeId, true); if (labelBox) { if (attr.doCallout) { if (labelTpl.attr.display === 'outside') { me.putMarker('labels', { callout: 1 }, attributeId); } else if (labelTpl.attr.display === 'inside') { me.putMarker('labels', { callout: 0 }, attributeId); } else { me.putMarker('labels', { callout: 1 - me.sliceContainsLabel(attr, labelBox) }, attributeId); } } else { me.putMarker('labels', { globalAlpha: me.sliceContainsLabel(attr, labelBox) }, attributeId); } } }, sliceContainsLabel: function (attr, bbox) { var padding = attr.labelOverflowPadding, middle = (attr.endRho + attr.startRho) / 2, outer = middle + (bbox.width + padding) / 2, inner = middle - (bbox.width + padding) / 2, sliceAngle, l1, l2, l3; if (padding < 0) { return 1; } if (bbox.width + padding * 2 > (attr.endRho - attr.startRho)) { return 0; } l1 = Math.sqrt(attr.endRho * attr.endRho - outer * outer); l2 = Math.sqrt(attr.endRho * attr.endRho - inner * inner); sliceAngle = Math.abs(attr.endAngle - attr.startAngle); l3 = (sliceAngle > Math.PI/2 ? inner : Math.abs(Math.tan(sliceAngle / 2)) * inner); if (bbox.height + padding * 2 > Math.min(l1, l2, l3) * 2) { return 0; } return 1; }});