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static/lib/Highcharts-10.2.1/es-modules/Series/Column/ColumnDataLabel.js

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+/* *
+ *
+ *  (c) 2010-2021 Torstein Honsi
+ *
+ *  License: www.highcharts.com/license
+ *
+ *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
+ *
+ * */
+'use strict';
+import DataLabel from '../../Core/Series/DataLabel.js';
+import SeriesRegistry from '../../Core/Series/SeriesRegistry.js';
+var Series = SeriesRegistry.series;
+import U from '../../Core/Utilities.js';
+var merge = U.merge, pick = U.pick;
+/* *
+ *
+ *  Composition
+ *
+ * */
+var ColumnDataLabel;
+(function (ColumnDataLabel) {
+    /* *
+     *
+     *  Constants
+     *
+     * */
+    var composedClasses = [];
+    /* *
+     *
+     *  Functions
+     *
+     * */
+    /* eslint-disable valid-jsdoc */
+    /**
+     * Override the basic data label alignment by adjusting for the position of
+     * the column.
+     * @private
+     */
+    function alignDataLabel(point, dataLabel, options, alignTo, isNew) {
+        var inverted = this.chart.inverted, series = point.series, xLen = (series.xAxis ? series.xAxis.len : this.chart.plotSizeX) || 0, yLen = (series.yAxis ? series.yAxis.len : this.chart.plotSizeY) || 0, 
+        // data label box for alignment
+        dlBox = point.dlBox || point.shapeArgs, below = pick(point.below, // range series
+        point.plotY >
+            pick(this.translatedThreshold, yLen)), 
+        // draw it inside the box?
+        inside = pick(options.inside, !!this.options.stacking), overshoot;
+        // Align to the column itself, or the top of it
+        if (dlBox) { // Area range uses this method but not alignTo
+            alignTo = merge(dlBox);
+            if (alignTo.y < 0) {
+                alignTo.height += alignTo.y;
+                alignTo.y = 0;
+            }
+            // If parts of the box overshoots outside the plot area, modify the
+            // box to center the label inside
+            overshoot = alignTo.y + alignTo.height - yLen;
+            if (overshoot > 0 && overshoot < alignTo.height) {
+                alignTo.height -= overshoot;
+            }
+            if (inverted) {
+                alignTo = {
+                    x: yLen - alignTo.y - alignTo.height,
+                    y: xLen - alignTo.x - alignTo.width,
+                    width: alignTo.height,
+                    height: alignTo.width
+                };
+            }
+            // Compute the alignment box
+            if (!inside) {
+                if (inverted) {
+                    alignTo.x += below ? 0 : alignTo.width;
+                    alignTo.width = 0;
+                }
+                else {
+                    alignTo.y += below ? alignTo.height : 0;
+                    alignTo.height = 0;
+                }
+            }
+        }
+        // When alignment is undefined (typically columns and bars), display the
+        // individual point below or above the point depending on the threshold
+        options.align = pick(options.align, !inverted || inside ? 'center' : below ? 'right' : 'left');
+        options.verticalAlign = pick(options.verticalAlign, inverted || inside ? 'middle' : below ? 'top' : 'bottom');
+        // Call the parent method
+        Series.prototype.alignDataLabel.call(this, point, dataLabel, options, alignTo, isNew);
+        // If label was justified and we have contrast, set it:
+        if (options.inside && point.contrastColor) {
+            dataLabel.css({
+                color: point.contrastColor
+            });
+        }
+    }
+    /** @private */
+    function compose(ColumnSeriesClass) {
+        DataLabel.compose(Series);
+        if (composedClasses.indexOf(ColumnSeriesClass) === -1) {
+            composedClasses.push(ColumnSeriesClass);
+            ColumnSeriesClass.prototype.alignDataLabel = alignDataLabel;
+        }
+    }
+    ColumnDataLabel.compose = compose;
+})(ColumnDataLabel || (ColumnDataLabel = {}));
+/* *
+ *
+ *  Default Export
+ *
+ * */
+export default ColumnDataLabel;