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Adding vertexmodified, sketchmodified, and sketchcomplete events to the vector layer. These are triggered by the DrawFeature and ModifyFeature controls and let listeners know about newly drawn features and modified features. r=ahocevar (closes #1904)

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git-svn-id: http://svn.openlayers.org/trunk/openlayers@8835 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
Tim Schaub
2009-02-05 17:38:20 +00:00
parent f4bae0a011
commit 41670499b1
5 changed files with 169 additions and 16 deletions
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44
lib/OpenLayers/Control/ModifyFeature.js
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@@ -117,6 +117,12 @@ OpenLayers.Control.ModifyFeature = OpenLayers.Class(OpenLayers.Control, {
*/
mode: null,
/**
* Property: modified
* {Boolean} The currently selected feature has been modified.
*/
modified: false,
/**
* Property: radiusHandle
* {<OpenLayers.Feature.Vector>} A handle for rotating/resizing a feature.
@@ -212,8 +218,8 @@ OpenLayers.Control.ModifyFeature = OpenLayers.Class(OpenLayers.Control, {
onStart: function(feature, pixel) {
control.dragStart.apply(control, [feature, pixel]);
},
onDrag: function(feature) {
control.dragVertex.apply(control, [feature]);
onDrag: function(feature, pixel) {
control.dragVertex.apply(control, [feature, pixel]);
},
onComplete: function(feature) {
control.dragComplete.apply(control, [feature]);
@@ -304,6 +310,7 @@ OpenLayers.Control.ModifyFeature = OpenLayers.Class(OpenLayers.Control, {
*/
selectFeature: function(feature) {
this.feature = feature;
this.modified = false;
this.resetVertices();
this.dragControl.activate();
this.onModificationStart(this.feature);
@@ -332,8 +339,11 @@ OpenLayers.Control.ModifyFeature = OpenLayers.Class(OpenLayers.Control, {
this.feature = null;
this.dragControl.deactivate();
this.onModificationEnd(feature);
this.layer.events.triggerEvent("afterfeaturemodified",
{feature: feature});
this.layer.events.triggerEvent("afterfeaturemodified", {
feature: feature,
modified: this.modified
});
this.modified = false;
},
/**
@@ -390,21 +400,28 @@ OpenLayers.Control.ModifyFeature = OpenLayers.Class(OpenLayers.Control, {
*
* Parameters:
* vertex - {<OpenLayers.Feature.Vector>} The vertex being dragged.
* pixel - {<OpenLayers.Pixel>} Pixel location of the mouse event.
*/
dragVertex: function(vertex) {
dragVertex: function(vertex, pixel) {
this.modified = true;
/**
* Five cases:
* 1) dragging a simple point
* 2) dragging a virtual vertex
* 3) dragging a drag handle
* 4) dragging a radius handle
* 5) dragging a real vertex
* 4) dragging a real vertex
* 5) dragging a radius handle
*/
if(this.feature.geometry.CLASS_NAME == "OpenLayers.Geometry.Point") {
// dragging a simple point
if(this.feature != vertex) {
this.feature = vertex;
}
this.layer.events.triggerEvent("vertexmodified", {
vertex: vertex.geometry,
feature: this.feature,
pixel: pixel
});
} else {
if(vertex._index) {
// dragging a virtual vertex
@@ -422,9 +439,15 @@ OpenLayers.Control.ModifyFeature = OpenLayers.Class(OpenLayers.Control, {
this.layer.destroyFeatures([this.radiusHandle], {silent: true});
this.radiusHandle = null;
}
} else if(vertex !== this.radiusHandle) {
// dragging a real vertex
this.layer.events.triggerEvent("vertexmodified", {
vertex: vertex.geometry,
feature: this.feature,
pixel: pixel
});
}
// dragging a radius handle - no special treatment
// dragging a real vertex - no special treatment
if(this.virtualVertices.length > 0) {
this.layer.destroyFeatures(this.virtualVertices, {silent: true});
this.virtualVertices = [];
@@ -556,6 +579,7 @@ OpenLayers.Control.ModifyFeature = OpenLayers.Class(OpenLayers.Control, {
var i, vertex, component, len;
if(geometry.CLASS_NAME == "OpenLayers.Geometry.Point") {
vertex = new OpenLayers.Feature.Vector(geometry);
vertex._sketch = true;
control.vertices.push(vertex);
} else {
var numVert = geometry.components.length;
@@ -566,6 +590,7 @@ OpenLayers.Control.ModifyFeature = OpenLayers.Class(OpenLayers.Control, {
component = geometry.components[i];
if(component.CLASS_NAME == "OpenLayers.Geometry.Point") {
vertex = new OpenLayers.Feature.Vector(component);
vertex._sketch = true;
control.vertices.push(vertex);
} else {
collectComponentVertices(component);
@@ -588,6 +613,7 @@ OpenLayers.Control.ModifyFeature = OpenLayers.Class(OpenLayers.Control, {
// set the virtual parent and intended index
point.geometry.parent = geometry;
point._index = i + 1;
point._sketch = true;
control.virtualVertices.push(point);
}
}
@@ -614,6 +640,7 @@ OpenLayers.Control.ModifyFeature = OpenLayers.Class(OpenLayers.Control, {
OpenLayers.Geometry.Point.prototype.move.call(this, x, y);
geometry.move(x, y);
};
origin._sketch = true;
this.dragHandle = origin;
this.layer.addFeatures([this.dragHandle], {silent: true});
},
@@ -654,6 +681,7 @@ OpenLayers.Control.ModifyFeature = OpenLayers.Class(OpenLayers.Control, {
geometry.resize(l1 / l0, originGeometry);
}
};
radius._sketch = true;
this.radiusHandle = radius;
this.layer.addFeatures([this.radiusHandle], {silent: true});
},