+/*
+
+This file is part of Ext JS 4
+
+Copyright (c) 2011 Sencha Inc
+
+Contact: http://www.sencha.com/contact
+
+GNU General Public License Usage
+This file may be used under the terms of the GNU General Public License version 3.0 as published by the Free Software Foundation and appearing in the file LICENSE included in the packaging of this file. Please review the following information to ensure the GNU General Public License version 3.0 requirements will be met: http://www.gnu.org/copyleft/gpl.html.
+
+If you are unsure which license is appropriate for your use, please contact the sales department at http://www.sencha.com/contact.
+
+*/
/**
* @class Ext.chart.Label
*
- * Labels is a mixin whose methods are appended onto the Series class. Labels is an interface with methods implemented
- * in each of the Series (Pie, Bar, etc) for label creation and label placement.
+ * Labels is a mixin to the Series class. Labels methods are implemented
+ * in each of the Series (Pie, Bar, etc) for label creation and placement.
*
* The methods implemented by the Series are:
- *
+ *
* - **`onCreateLabel(storeItem, item, i, display)`** Called each time a new label is created.
* The arguments of the method are:
* - *`storeItem`* The element of the store that is related to the label sprite.
/* Begin Definitions */
requires: ['Ext.draw.Color'],
-
- /* End Definitions */
-
- /**
- * @cfg {String} display
- * Specifies the presence and position of labels for each pie slice. Either "rotate", "middle", "insideStart",
- * "insideEnd", "outside", "over", "under", or "none" to prevent label rendering.
- * Default value: 'none'.
- */
-
- /**
- * @cfg {String} color
- * The color of the label text.
- * Default value: '#000' (black).
- */
-
- /**
- * @cfg {String} field
- * The name of the field to be displayed in the label.
- * Default value: 'name'.
- */
-
- /**
- * @cfg {Number} minMargin
- * Specifies the minimum distance from a label to the origin of the visualization.
- * This parameter is useful when using PieSeries width variable pie slice lengths.
- * Default value: 50.
- */
-
- /**
- * @cfg {String} font
- * The font used for the labels.
- * Defautl value: "11px Helvetica, sans-serif".
- */
- /**
- * @cfg {String} orientation
- * Either "horizontal" or "vertical".
- * Dafault value: "horizontal".
- */
+ /* End Definitions */
/**
- * @cfg {Function} renderer
- * Optional function for formatting the label into a displayable value.
- * Default value: function(v) { return v; }
- * @param v
+ * @cfg {Object} label
+ * Object with the following properties:
+ *
+ * - **display** : String
+ *
+ * Specifies the presence and position of labels for each pie slice. Either "rotate", "middle", "insideStart",
+ * "insideEnd", "outside", "over", "under", or "none" to prevent label rendering.
+ * Default value: 'none'.
+ *
+ * - **color** : String
+ *
+ * The color of the label text.
+ * Default value: '#000' (black).
+ *
+ * - **contrast** : Boolean
+ *
+ * True to render the label in contrasting color with the backround.
+ * Default value: false.
+ *
+ * - **field** : String
+ *
+ * The name of the field to be displayed in the label.
+ * Default value: 'name'.
+ *
+ * - **minMargin** : Number
+ *
+ * Specifies the minimum distance from a label to the origin of the visualization.
+ * This parameter is useful when using PieSeries width variable pie slice lengths.
+ * Default value: 50.
+ *
+ * - **font** : String
+ *
+ * The font used for the labels.
+ * Default value: "11px Helvetica, sans-serif".
+ *
+ * - **orientation** : String
+ *
+ * Either "horizontal" or "vertical".
+ * Dafault value: "horizontal".
+ *
+ * - **renderer** : Function
+ *
+ * Optional function for formatting the label into a displayable value.
+ * Default value: function(v) { return v; }
*/
//@private a regex to parse url type colors.
colorStringRe: /url\s*\(\s*#([^\/)]+)\s*\)/,
-
+
//@private the mixin constructor. Used internally by Series.
constructor: function(config) {
var me = this;
var me = this,
chart = me.chart,
gradients = chart.gradients,
- gradient,
items = me.items,
animate = chart.animate,
config = me.label,
color = config.color,
field = [].concat(config.field),
group = me.labelsGroup,
+ groupLength = (group || 0) && group.length,
store = me.chart.store,
len = store.getCount(),
- ratio = items.length / len,
- i, count, index, j,
- k, gradientsCount = (gradients || 0) && gradients.length,
- colorStopTotal, colorStopIndex, colorStop,
- item, label, storeItem,
- sprite, spriteColor, spriteBrightness, labelColor,
+ itemLength = (items || 0) && items.length,
+ ratio = itemLength / len,
+ gradientsCount = (gradients || 0) && gradients.length,
Color = Ext.draw.Color,
- colorString;
+ hides = [],
+ gradient, i, count, groupIndex, index, j, k, colorStopTotal, colorStopIndex, colorStop, item, label,
+ storeItem, sprite, spriteColor, spriteBrightness, labelColor, colorString;
if (display == 'none') {
return;
}
+ // no items displayed, hide all labels
+ if(itemLength == 0){
+ while(groupLength--)
+ hides.push(groupLength);
+ }else{
+ for (i = 0, count = 0, groupIndex = 0; i < len; i++) {
+ index = 0;
+ for (j = 0; j < ratio; j++) {
+ item = items[count];
+ label = group.getAt(groupIndex);
+ storeItem = store.getAt(i);
+ //check the excludes
+ while(this.__excludes && this.__excludes[index] && ratio > 1) {
+ if(field[j]){
+ hides.push(groupIndex);
+ }
+ index++;
- for (i = 0, count = 0; i < len; i++) {
- index = 0;
- for (j = 0; j < ratio; j++) {
- item = items[count];
- label = group.getAt(count);
- storeItem = store.getAt(i);
-
- //check the excludes
- while(this.__excludes && this.__excludes[index]) {
- index++;
- }
-
- if (!item && label) {
- label.hide(true);
- }
+ }
- if (item && field[j]) {
- if (!label) {
- label = me.onCreateLabel(storeItem, item, i, display, j, index);
+ if (!item && label) {
+ label.hide(true);
+ groupIndex++;
}
- me.onPlaceLabel(label, storeItem, item, i, display, animate, j, index);
-
- //set contrast
- if (config.contrast && item.sprite) {
- sprite = item.sprite;
- colorString = sprite._to && sprite._to.fill || sprite.attr.fill;
- spriteColor = Color.fromString(colorString);
- //color wasn't parsed property maybe because it's a gradient id
- if (colorString && !spriteColor) {
- colorString = colorString.match(me.colorStringRe)[1];
- for (k = 0; k < gradientsCount; k++) {
- gradient = gradients[k];
- if (gradient.id == colorString) {
- //avg color stops
- colorStop = 0; colorStopTotal = 0;
- for (colorStopIndex in gradient.stops) {
- colorStop++;
- colorStopTotal += Color.fromString(gradient.stops[colorStopIndex].color).getGrayscale();
+
+ if (item && field[j]) {
+ if (!label) {
+ label = me.onCreateLabel(storeItem, item, i, display, j, index);
+ }
+ me.onPlaceLabel(label, storeItem, item, i, display, animate, j, index);
+ groupIndex++;
+
+ //set contrast
+ if (config.contrast && item.sprite) {
+ sprite = item.sprite;
+ //set the color string to the color to be set.
+ if (sprite._endStyle) {
+ colorString = sprite._endStyle.fill;
+ }
+ else if (sprite._to) {
+ colorString = sprite._to.fill;
+ }
+ else {
+ colorString = sprite.attr.fill;
+ }
+ colorString = colorString || sprite.attr.fill;
+
+ spriteColor = Color.fromString(colorString);
+ //color wasn't parsed property maybe because it's a gradient id
+ if (colorString && !spriteColor) {
+ colorString = colorString.match(me.colorStringRe)[1];
+ for (k = 0; k < gradientsCount; k++) {
+ gradient = gradients[k];
+ if (gradient.id == colorString) {
+ //avg color stops
+ colorStop = 0; colorStopTotal = 0;
+ for (colorStopIndex in gradient.stops) {
+ colorStop++;
+ colorStopTotal += Color.fromString(gradient.stops[colorStopIndex].color).getGrayscale();
+ }
+ spriteBrightness = (colorStopTotal / colorStop) / 255;
+ break;
}
- spriteBrightness = (colorStopTotal / colorStop) / 255;
- break;
}
}
+ else {
+ spriteBrightness = spriteColor.getGrayscale() / 255;
+ }
+ if (label.isOutside) {
+ spriteBrightness = 1;
+ }
+ labelColor = Color.fromString(label.attr.color || label.attr.fill).getHSL();
+ labelColor[2] = spriteBrightness > 0.5 ? 0.2 : 0.8;
+ label.setAttributes({
+ fill: String(Color.fromHSL.apply({}, labelColor))
+ }, true);
}
- else {
- spriteBrightness = spriteColor.getGrayscale() / 255;
- }
- labelColor = Color.fromString(label.attr.color || label.attr.fill).getHSL();
-
- labelColor[2] = spriteBrightness > 0.5? 0.2 : 0.8;
- label.setAttributes({
- fill: String(Color.fromHSL.apply({}, labelColor))
- }, true);
+
}
+ count++;
+ index++;
}
- count++;
- index++;
}
}
- me.hideLabels(count);
+ me.hideLabels(hides);
},
-
- //@private a method to hide labels.
- hideLabels: function(index) {
- var labelsGroup = this.labelsGroup, len;
- if (labelsGroup) {
- len = labelsGroup.getCount();
- while (len-->index) {
- labelsGroup.getAt(len).hide(true);
- }
- }
+ hideLabels: function(hides){
+ var labelsGroup = this.labelsGroup,
+ hlen = hides.length;
+ while(hlen--)
+ labelsGroup.getAt(hides[hlen]).hide(true);
}
-});
\ No newline at end of file
+});
git.ithinksw.org / extjs.git / blobdiff