geosolutions-it#10322: Fix scale selector to make it compatible with …

…different projections

Description:
- fix issues of not consistent map print scales with the current map view

web/client/components/print/MapPreview.jsx

@@ -11,7 +11,7 @@ import PropTypes from 'prop-types';
 import React from 'react';
 import { Glyphicon } from 'react-bootstrap';
 
-import { getMapZoom, getResolutionMultiplier } from '../../utils/PrintUtils';
+import { getResolutionMultiplier } from '../../utils/PrintUtils';
 import ScaleBox from '../mapcontrols/scale/ScaleBox';
 import Button from '../misc/Button';
 import isNil from 'lodash/isNil';
@@ -152,7 +152,7 @@ class MapPreview extends React.Component {
                 interactive={false}
                 onMapViewChanges={this.props.onMapViewChanges}
                 zoomControl={false}
-                zoom={this.props.useFixedScales && this.props.scales ? getMapZoom(this.props.map.scaleZoom, this.props.scales) : this.props.map.zoom}
+                zoom={this.props.map.zoom}              // zoom level for map preview [it is precalculated]
                 center={this.props.map.center}
                 id="print_preview"
                 registerHooks={false}

web/client/plugins/print/Projection.jsx

@@ -24,11 +24,11 @@ function mapTransformer(state, map) {
         return {
             ...map,
             scale: scales[map.zoom],
-            zoom: map.zoom >= 1 ? map.zoom - 1 : map.zoom,              // for print map preview
+            zoom: map.zoom,
             projection: srs
         };
     }
-    return {...map, scale: scales[map.zoom], zoom: map.zoom >= 1 ? map.zoom - 1 : map.zoom};
+    return {...map, scale: scales[map.zoom], zoom: map.zoom};
 }
 
 const validator = (allowPreview) => (state) => {