93ae928236
added image change while dragging markers, increased (invisible) size of drag marker, fixed issues with drag marker and highlight marker overlapping
116 lines
3.2 KiB
JavaScript
116 lines
3.2 KiB
JavaScript
/*
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU AFFERO General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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or see http://www.gnu.org/licenses/agpl.txt.
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*/
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// Leaflet extension: SwitchableIcon
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// [will be an extension of L.Icon in Leaflet 0.4, for now it is a copy with added functionality]
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// icon class with functions to simply switch the icon images
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L.SwitchableIcon = L.Class.extend({
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options: {
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/*
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iconUrl: (String) (required)
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iconSize: (Point) (can be set through CSS)
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iconAnchor: (Point) (centered by default if size is specified, can be set in CSS with negative margins)
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popupAnchor: (Point) (if not specified, popup opens in the anchor point)
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shadowUrl: (Point) (no shadow by default)
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shadowSize: (Point)
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*/
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className: ''
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},
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initialize: function (options) {
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L.Util.setOptions(this, options);
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},
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createIcon: function () {
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return this._createIcon('icon');
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},
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createShadow: function () {
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return this.options.shadowUrl ? this._createIcon('shadow') : null;
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},
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_createIcon: function (name) {
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var img = this._createImg(this.options[name + 'Url']);
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this._setIconStyles(img, name);
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return img;
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},
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_setIconStyles: function (img, name) {
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var options = this.options,
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size = options[name + 'Size'],
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anchor = options.iconAnchor;
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if (!anchor && size) {
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anchor = size.divideBy(2, true);
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}
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if (name === 'shadow' && anchor && options.shadowOffset) {
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anchor._add(options.shadowOffset);
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}
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img.className = 'leaflet-marker-' + name + ' ' + options.className;
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if (anchor) {
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img.style.marginLeft = (-anchor.x) + 'px';
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img.style.marginTop = (-anchor.y) + 'px';
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}
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if (size) {
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img.style.width = size.x + 'px';
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img.style.height = size.y + 'px';
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}
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},
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_createImg: function (src) {
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var el;
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if (!L.Browser.ie6) {
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el = document.createElement('img');
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el.src = src;
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} else {
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el = document.createElement('div');
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el.style.filter = 'progid:DXImageTransform.Microsoft.AlphaImageLoader(src="' + src + '")';
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}
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return el;
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},
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// new functions start here
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switchIcon: function (el) {
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return this._switchIcon('icon', el);
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},
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switchShadow: function (el) {
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return this.options.shadowUrl ? this._switchIcon('shadow', el) : null;
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},
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_switchIcon: function (name, el) {
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var img = this._switchImg(this.options[name + 'Url'], el);
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this._setIconStyles(img, name);
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return img;
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},
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_switchImg: function (src, el) {
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if (!L.Browser.ie6) {
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el.src = src;
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} else {
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el.style.filter = 'progid:DXImageTransform.Microsoft.AlphaImageLoader(src="' + src + '")';
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}
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return el;
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}
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});
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