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Add vectorContext.drawGeometry() method

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This commit is contained in:
Tim Schaub
2016-03-18 01:02:02 -06:00
parent 8f0f278832
commit 873e4176c6
2 changed files with 162 additions and 32 deletions
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76
src/ol/render/canvas/canvasimmediate.js
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@@ -10,6 +10,7 @@ goog.require('ol.array');
goog.require('ol.color');
goog.require('ol.colorlike');
goog.require('ol.extent');
goog.require('ol.geom.GeometryType');
goog.require('ol.geom.flat.transform');
goog.require('ol.has');
goog.require('ol.render.VectorContext');
@@ -475,6 +476,46 @@ ol.render.canvas.Immediate.prototype.setStyle = function(style) {
};
/**
* Render a geometry into the canvas. Call
* {@link ol.render.canvas.Immediate#setStyle} first to set the rendering style.
*
* @param {ol.geom.Geometry|ol.render.Feature} geometry The geometry to render.
* @api
*/
ol.render.canvas.Immediate.prototype.drawGeometry = function(geometry) {
var type = geometry.getType();
switch (type) {
case ol.geom.GeometryType.POINT:
this.drawPointGeometry(/** @type {ol.geom.Point} */ (geometry));
break;
case ol.geom.GeometryType.LINE_STRING:
this.drawLineStringGeometry(/** @type {ol.geom.LineString} */ (geometry));
break;
case ol.geom.GeometryType.POLYGON:
this.drawPolygonGeometry(/** @type {ol.geom.Polygon} */ (geometry));
break;
case ol.geom.GeometryType.MULTI_POINT:
this.drawMultiPointGeometry(/** @type {ol.geom.MultiPoint} */ (geometry));
break;
case ol.geom.GeometryType.MULTI_LINE_STRING:
this.drawMultiLineStringGeometry(/** @type {ol.geom.MultiLineString} */ (geometry));
break;
case ol.geom.GeometryType.MULTI_POLYGON:
this.drawMultiPolygonGeometry(/** @type {ol.geom.MultiPolygon} */ (geometry));
break;
case ol.geom.GeometryType.GEOMETRY_COLLECTION:
this.drawGeometryCollectionGeometry(/** @type {ol.geom.GeometryCollection} */ (geometry), null);
break;
case ol.geom.GeometryType.CIRCLE:
this.drawCircleGeometry(/** @type {ol.geom.Circle} */ (geometry));
break;
default:
goog.asserts.fail('Unsupported geometry type: ' + type);
}
};
/**
* Render a feature into the canvas. In order to respect the zIndex of the
* style this method draws asynchronously and thus *after* calls to
@@ -500,11 +541,8 @@ ol.render.canvas.Immediate.prototype.drawFeature = function(feature, style) {
render.setFillStrokeStyle(style.getFill(), style.getStroke());
render.setImageStyle(style.getImage());
render.setTextStyle(style.getText());
var renderGeometry =
ol.render.canvas.Immediate.GEOMETRY_RENDERERS_[geometry.getType()];
goog.asserts.assert(renderGeometry !== undefined,
'renderGeometry should be defined');
renderGeometry.call(render, geometry, null);
goog.asserts.assert(geometry);
render.drawGeometry(geometry);
});
};
@@ -521,12 +559,7 @@ ol.render.canvas.Immediate.prototype.drawGeometryCollectionGeometry = function(g
var geometries = geometryCollectionGeometry.getGeometriesArray();
var i, ii;
for (i = 0, ii = geometries.length; i < ii; ++i) {
var geometry = geometries[i];
var geometryRenderer =
ol.render.canvas.Immediate.GEOMETRY_RENDERERS_[geometry.getType()];
goog.asserts.assert(geometryRenderer !== undefined,
'geometryRenderer should be defined');
geometryRenderer.call(this, geometry, feature);
this.drawGeometry(geometries[i]);
}
};
@@ -985,24 +1018,3 @@ ol.render.canvas.Immediate.prototype.setTextStyle = function(textStyle) {
textScale : 1);
}
};
/**
* @const
* @private
* @type {Object.<ol.geom.GeometryType,
* function(this: ol.render.canvas.Immediate,
* (ol.geom.Geometry|ol.render.Feature), Object)>}
*/
ol.render.canvas.Immediate.GEOMETRY_RENDERERS_ = {
'Point': ol.render.canvas.Immediate.prototype.drawPointGeometry,
'LineString': ol.render.canvas.Immediate.prototype.drawLineStringGeometry,
'Polygon': ol.render.canvas.Immediate.prototype.drawPolygonGeometry,
'MultiPoint': ol.render.canvas.Immediate.prototype.drawMultiPointGeometry,
'MultiLineString':
ol.render.canvas.Immediate.prototype.drawMultiLineStringGeometry,
'MultiPolygon': ol.render.canvas.Immediate.prototype.drawMultiPolygonGeometry,
'GeometryCollection':
ol.render.canvas.Immediate.prototype.drawGeometryCollectionGeometry,
'Circle': ol.render.canvas.Immediate.prototype.drawCircleGeometry
};