"users should be able to customize the select style per feature": Created a !StyleMap class which stores all styles that are needed for a layer. Controls that need to render features differently can now just give a render intent (e.g. "default", "select" or "temporary") to the layer's drawFeature method, instead of having extra style informations like Control.!SelectFeature.selectStyle. Existing application that set layer.style or feature.style are still supported, but both of these style properties are now null by default. r=crschmidt,elemoine,tschaub (closes #1120)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@6240 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
ahocevar
2008-02-12 23:05:47 +00:00
parent dd1f4d1fa9
commit c5dd8ada2c
19 changed files with 257 additions and 142 deletions

View File

@@ -31,6 +31,9 @@
// the thumbail attribute of the rss item
style = new OpenLayers.Style({externalGraphic: "${thumbnail}"});
// make the thumbnails larger when we select them
selectStyle = new OpenLayers.Style({pointRadius: 35});
// create a rule with a point symbolizer that will make the thumbnail
// larger if the title of the rss item conatins "powder"
var rule = new OpenLayers.Rule.Comparison({
@@ -47,12 +50,13 @@
style.addRules([rule, elseRule]);
markerLayer = new OpenLayers.Layer.Vector("", {style: style});
markerLayer = new OpenLayers.Layer.Vector("", {styleMap: new OpenLayers.StyleMap({
"default": style,
"select": selectStyle})});
map.addLayer(markerLayer);
// control that will show a popup when clicking on a thumbnail
var popupControl = new OpenLayers.Control.SelectFeature(markerLayer, {
selectStyle: style,
onSelect: function(feature) {
var pos = feature.geometry;
if (popup) {

View File

@@ -28,7 +28,7 @@
map.addLayer(wms);
wfs = new OpenLayers.Layer.WFS("Minnesota Streams (WFS)", wfs_url, {'typename':'streams'}, {ratio:1.25, minZoomLevel:4});
wfs = new OpenLayers.Layer.WFS("Minnesota Streams (WFS)", wfs_url, {'typename':'streams'}, {ratio:1.25, minZoomLevel:4, style: OpenLayers.Util.extend({}, OpenLayers.Feature.Vector.style['default'])});
// preFeatureInsert can be used to set style before the feature is drawn
wfs.preFeatureInsert= function(feature) { feature.style.strokeWidth="3"; feature.style.strokeColor="blue";
@@ -57,7 +57,7 @@
map.addLayer(pwfs);
rstyle = OpenLayers.Util.extend({}, OpenLayers.Feature.Vector.style['default']);
OpenLayers.Util.extend(rstyle, {'strokeColor': 'white', strokeWIdth: "4"});
OpenLayers.Util.extend(rstyle, {'strokeColor': 'white', strokeWidth: "4"});
rwfs = new OpenLayers.Layer.WFS("Minnesota Roads (WFS)", wfs_url, {'typename':'roads'},
{ratio:1.25, minZoomLevel:7, extractAttributes: true, style:rstyle});

View File

@@ -47,7 +47,7 @@
gml.loadGML();
}
function style_osm_feature(feature) {
feature.style.fill = "black";
feature.style = OpenLayers.Util.extend({'fill':'black'}, OpenLayers.Feature.Vector.style['default']);
if (feature.attributes.highway == "motorway") {
feature.style.strokeColor = "blue";
feature.style.strokeWidth = 5;

View File

@@ -32,41 +32,33 @@
styles = sld[1];
waterStyle = styles["WaterBodies"];
// for the hover style, we do not want to use the SLD default as
// base style
styles["WaterBodies"]["Hover Styler"].defaultStyle = OpenLayers.Util.extend({},
OpenLayers.Feature.Vector.style["select"]);
gmlLayers = [
// use the sld UserStyle named "Default Styler"
new OpenLayers.Layer.GML("StateBoundaries",
"tasmania/TasmaniaStateBoundaries.xml", {
style: waterStyle["default"]}),
styleMap: new OpenLayers.StyleMap(styles["WaterBodies"])}),
new OpenLayers.Layer.GML("Roads",
"tasmania/TasmaniaRoads.xml", {
style: waterStyle["default"]}),
styleMap: new OpenLayers.StyleMap(styles["Roads"])}),
new OpenLayers.Layer.GML("WaterBodies",
"tasmania/TasmaniaWaterBodies.xml", {
style: waterStyle["default"]}),
styleMap: new OpenLayers.StyleMap(styles["WaterBodies"])}),
new OpenLayers.Layer.GML("Cities",
"tasmania/TasmaniaCities.xml", {
style: waterStyle["default"]})];
styleMap: new OpenLayers.StyleMap(styles["Cities"])})];
// add the first layer with the style passed to the constructor
map.addLayer(gmlLayers[0]);
// add the other layers after setting the style using the
// setStyle() method, which will pick the correct default style
// from the styles hash we got back from
// OpenLayers.Format.SLD.read()
for (var i=1; i<gmlLayers.length; i++) {
gmlLayers[i].style = styles[gmlLayers[i].name]["default"];
map.addLayer(gmlLayers[i]);
gmlLayers[i].redraw();
for (var i=0; i<gmlLayers.length; i++) {
map.addLayer(gmlLayers[i]);
}
// SLD can also be used for the SelectFeature control
waterStyle["Hover Styler"].defaultStyle =
OpenLayers.Feature.Vector.style["select"];
hover = new OpenLayers.Control.SelectFeature(gmlLayers[2], {
selectStyle: waterStyle["Hover Styler"],
hover: true
hover: true,
renderIntent: "Hover Styler"
});
map.addControl(hover);
hover.activate();
@@ -74,11 +66,8 @@
// set a new style when the radio button changes
function setStyle(styleName) {
gmlLayers[2].styleMap.styles["default"] = styles["WaterBodies"][styleName];
// change the style of the features of the WaterBodies layer
var features = gmlLayers[2].features;
for (var i=0; i<features.length; i++) {
features[i].style = waterStyle[styleName];
}
gmlLayers[2].redraw();
}
</script>

View File

@@ -35,7 +35,7 @@
df = new OpenLayers.Control.DrawFeature(layer, OpenLayers.Handler.Path, {handlerOptions: {'freehand': false}, 'displayClass': 'olControlDrawFeaturePath'});
df.featureAdded = function(feature) {
feature.state = OpenLayers.State.INSERT;
feature.style['strokeColor'] = "#ff0000";
feature.style = OpenLayers.Util.extend({'strokeColor': '#ff0000'}, OpenLayers.Feature.Vector.style['default']);
feature.layer.drawFeature(feature);
}
p.addControls([ new OpenLayers.Control.Navigation(), df ]);