Fix print layers when opacity background layer is a layer group #4041
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| * @return {Array.<ol.layer.Layer>} Layers. | ||
| * @private | ||
| */ | ||
| exports.prototype.getFlatLayers_ = function(layer, array) { | ||
| if (layer instanceof olLayerGroup) { | ||
| exports.prototype.getFlatLayers_ = function(layer, array, computedOpacity) { |
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Can you use an optional arguments for "computedOpacity" instead of calling this function with "undefined" at line 297 ?
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After discussion with @gberaudo, we prefer that it is explicit that the value is called as 'undefined' instead of skipping the last argument.
| }); | ||
| } else { | ||
| if (array.indexOf(layer) < 0) { | ||
| layer.set('inheritedOpacity', computedOpacity, true); |
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Can you check in our code if there is a way to indicate (document) that this opacity and should be used ?
llienher
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src/print/Service.js
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| * Return an opacity value for the specified layer. | ||
| * Usage: When we flatten a group (getFlatLayers() method), we get only the child layers. | ||
| * If opacity is defined on the group, this value is lost. | ||
| * Inherited opacity is a custom 'back-up' value that contains the parent element opacity. |
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The value does not just come from the parent but is computed based on the layer opacity and the one of all its ancestors.
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This documentation should be attached to the getFlatLayers_ method.
src/print/Service.js
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| * Return an opacity value for the specified layer. | ||
| * Usage: When we flatten a group (getFlatLayers() method), we get only the child layers. | ||
| * If opacity is defined on the group, this value is lost. | ||
| * Inherited opacity is a custom 'back-up' value that contains the parent element opacity. |
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This documentation should be attached to the getFlatLayers_ method.
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Fixes an print issue with opacity background layer when this is a group of layer instead of a single layer element.
When we generate the print layers, we flatten the gmf layers to remote the group, but we did loose the opacity in the process when this value was only on the group. This PR fixes and apply back the opacity to the layer once flatten.