640 lines
19 KiB
JavaScript
640 lines
19 KiB
JavaScript
// FIXME test, especially polygons with holes and multipolygons
|
|
// FIXME need to handle large thick features (where pixel size matters)
|
|
// FIXME store raw style values for text
|
|
|
|
goog.provide('ol.render.canvas.Immediate');
|
|
|
|
goog.require('goog.array');
|
|
goog.require('goog.asserts');
|
|
goog.require('goog.object');
|
|
goog.require('goog.vec.Mat4');
|
|
goog.require('ol.color');
|
|
goog.require('ol.extent');
|
|
goog.require('ol.render.IRender');
|
|
goog.require('ol.render.canvas');
|
|
goog.require('ol.style.Text');
|
|
goog.require('ol.vec.Mat4');
|
|
|
|
|
|
|
|
/**
|
|
* @constructor
|
|
* @implements {ol.render.IRender}
|
|
* @param {CanvasRenderingContext2D} context Context.
|
|
* @param {number} pixelRatio Pixel ratio.
|
|
* @param {ol.Extent} extent Extent.
|
|
* @param {goog.vec.Mat4.Number} transform Transform.
|
|
* @struct
|
|
*/
|
|
ol.render.canvas.Immediate = function(context, pixelRatio, extent, transform) {
|
|
|
|
/**
|
|
* @private
|
|
* @type {Object.<string,
|
|
* Array.<function(ol.render.canvas.Immediate)>>}
|
|
*/
|
|
this.callbacksByZIndex_ = {};
|
|
|
|
/**
|
|
* @private
|
|
* @type {CanvasRenderingContext2D}
|
|
*/
|
|
this.context_ = context;
|
|
|
|
/**
|
|
* @private
|
|
* @type {number}
|
|
*/
|
|
this.pixelRatio_ = pixelRatio;
|
|
|
|
/**
|
|
* @private
|
|
* @type {ol.Extent}
|
|
*/
|
|
this.extent_ = extent;
|
|
|
|
/**
|
|
* @private
|
|
* @type {goog.vec.Mat4.Number}
|
|
*/
|
|
this.transform_ = transform;
|
|
|
|
/**
|
|
* @private
|
|
* @type {{currentFillStyle: (string|undefined),
|
|
* currentStrokeStyle: (string|undefined),
|
|
* currentLineCap: (string|undefined),
|
|
* currentLineDash: Array.<number>,
|
|
* currentLineJoin: (string|undefined),
|
|
* currentLineWidth: (number|undefined),
|
|
* currentMiterLimit: (number|undefined),
|
|
* fillStyle: (string|undefined),
|
|
* strokeStyle: (string|undefined),
|
|
* lineWidth: (number|undefined),
|
|
* image: (HTMLCanvasElement|HTMLVideoElement|Image),
|
|
* anchorX: (number|undefined),
|
|
* anchorY: (number|undefined),
|
|
* height: (number|undefined),
|
|
* width: (number|undefined),
|
|
* scale: number,
|
|
* rotation: number,
|
|
* lineCap: (string|undefined),
|
|
* lineDash: Array.<number>,
|
|
* lineJoin: (string|undefined),
|
|
* miterLimit: (number|undefined),
|
|
* snapToPixel: (boolean|undefined),
|
|
* textStyle: ol.style.Text}}
|
|
*/
|
|
this.state_ = {
|
|
currentFillStyle: undefined,
|
|
currentStrokeStyle: undefined,
|
|
currentLineCap: undefined,
|
|
currentLineDash: null,
|
|
currentLineJoin: undefined,
|
|
currentLineWidth: undefined,
|
|
currentMiterLimit: undefined,
|
|
fillStyle: undefined,
|
|
strokeStyle: undefined,
|
|
lineWidth: undefined,
|
|
image: null,
|
|
anchorX: undefined,
|
|
anchorY: undefined,
|
|
height: undefined,
|
|
rotation: 0,
|
|
scale: 1,
|
|
width: undefined,
|
|
lineCap: undefined,
|
|
lineDash: null,
|
|
lineJoin: undefined,
|
|
miterLimit: undefined,
|
|
snapToPixel: undefined,
|
|
textStyle: null
|
|
};
|
|
|
|
/**
|
|
* @private
|
|
* @type {Array.<number>}
|
|
*/
|
|
this.pixelCoordinates_ = [];
|
|
|
|
/**
|
|
* @private
|
|
* @type {!goog.vec.Mat4.Number}
|
|
*/
|
|
this.tmpLocalTransform_ = goog.vec.Mat4.createNumber();
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.geom.Point|ol.geom.MultiPoint} geometry Geometry.
|
|
* @private
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.drawImages_ = function(geometry) {
|
|
var state = this.state_;
|
|
var context = this.context_;
|
|
if (!ol.extent.intersects(this.extent_, geometry.getExtent()) ||
|
|
goog.isNull(state.image)) {
|
|
return;
|
|
}
|
|
goog.asserts.assert(goog.isDef(state.anchorX));
|
|
goog.asserts.assert(goog.isDef(state.anchorY));
|
|
goog.asserts.assert(goog.isDef(state.height));
|
|
goog.asserts.assert(goog.isDef(state.width));
|
|
var pixelCoordinates = ol.geom.transformSimpleGeometry2D(
|
|
geometry, this.transform_, this.pixelCoordinates_);
|
|
var localTransform = this.tmpLocalTransform_;
|
|
var i, ii;
|
|
for (i = 0, ii = pixelCoordinates.length; i < ii; i += 2) {
|
|
var x = pixelCoordinates[i] - state.anchorX;
|
|
var y = pixelCoordinates[i + 1] - state.anchorY;
|
|
if (state.snapToPixel) {
|
|
x = (x + 0.5) | 0;
|
|
y = (y + 0.5) | 0;
|
|
}
|
|
if (state.scale != 1 || state.rotation !== 0) {
|
|
var centerX = x + state.anchorX;
|
|
var centerY = y + state.anchorY;
|
|
ol.vec.Mat4.makeTransform2D(localTransform,
|
|
centerX, centerY, state.scale, state.scale,
|
|
state.rotation, -centerX, -centerY);
|
|
context.setTransform(
|
|
goog.vec.Mat4.getElement(localTransform, 0, 0),
|
|
goog.vec.Mat4.getElement(localTransform, 1, 0),
|
|
goog.vec.Mat4.getElement(localTransform, 0, 1),
|
|
goog.vec.Mat4.getElement(localTransform, 1, 1),
|
|
goog.vec.Mat4.getElement(localTransform, 0, 3),
|
|
goog.vec.Mat4.getElement(localTransform, 1, 3));
|
|
}
|
|
context.drawImage(state.image, x, y, state.width, state.height);
|
|
}
|
|
if (state.scale != 1 || state.rotation !== 0) {
|
|
context.setTransform(1, 0, 0, 1, 0, 0);
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.geom.Point|ol.geom.MultiPoint} geometry Geometry.
|
|
* @private
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.drawText_ = function(geometry) {
|
|
var context = this.context_;
|
|
var state = this.state_;
|
|
var fillStyle = state.fillStyle;
|
|
var strokeStyle = state.strokeStyle;
|
|
var textStyle = state.textStyle;
|
|
if (!ol.extent.intersects(this.extent_, geometry.getExtent()) ||
|
|
!goog.isDefAndNotNull(textStyle) || !goog.isDef(textStyle.text) ||
|
|
(!goog.isDef(fillStyle) && !goog.isDef(strokeStyle))) {
|
|
return;
|
|
}
|
|
this.setFillStrokeStyles_();
|
|
var pixelCoordinates = ol.geom.transformSimpleGeometry2D(
|
|
geometry, this.transform_, this.pixelCoordinates_);
|
|
var i, ii;
|
|
for (i = 0, ii = pixelCoordinates.length; i < ii; i += 2) {
|
|
var x = pixelCoordinates[i];
|
|
var y = pixelCoordinates[i + 1];
|
|
// FIXME stroke before fill or fill before stroke?
|
|
if (goog.isDef(strokeStyle)) {
|
|
context.strokeText(textStyle.text, x, y);
|
|
}
|
|
if (goog.isDef(fillStyle)) {
|
|
context.fillText(textStyle.text, x, y);
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {Array.<number>} pixelCoordinates Pixel coordinates.
|
|
* @param {number} offset Offset.
|
|
* @param {number} end End.
|
|
* @param {boolean} close Close.
|
|
* @private
|
|
* @return {number} end End.
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.moveToLineTo_ =
|
|
function(pixelCoordinates, offset, end, close) {
|
|
var context = this.context_;
|
|
context.moveTo(pixelCoordinates[offset], pixelCoordinates[offset + 1]);
|
|
var i;
|
|
for (i = offset + 2; i < end; i += 2) {
|
|
context.lineTo(pixelCoordinates[i], pixelCoordinates[i + 1]);
|
|
}
|
|
if (close) {
|
|
context.lineTo(pixelCoordinates[offset], pixelCoordinates[offset + 1]);
|
|
}
|
|
return end;
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {Array.<number>} pixelCoordinates Pixel coordinates.
|
|
* @param {number} offset Offset.
|
|
* @param {Array.<number>} ends Ends.
|
|
* @private
|
|
* @return {number} End.
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.drawRings_ =
|
|
function(pixelCoordinates, offset, ends) {
|
|
var context = this.context_;
|
|
var i, ii;
|
|
for (i = 0, ii = ends.length; i < ii; ++i) {
|
|
offset = this.moveToLineTo_(pixelCoordinates, offset, ends[i], true);
|
|
context.closePath(); // FIXME is this needed here?
|
|
}
|
|
return offset;
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.drawAsync = function(zIndex, callback) {
|
|
var zIndexKey = zIndex.toString();
|
|
var callbacks = this.callbacksByZIndex_[zIndexKey];
|
|
if (goog.isDef(callbacks)) {
|
|
callbacks.push(callback);
|
|
} else {
|
|
this.callbacksByZIndex_[zIndexKey] = [callback];
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.drawCircleGeometry =
|
|
function(circleGeometry, data) {
|
|
if (!ol.extent.intersects(this.extent_, circleGeometry.getExtent())) {
|
|
return;
|
|
}
|
|
var state = this.state_;
|
|
if (!goog.isDef(state.fillStyle) && !goog.isDef(state.strokeStyle)) {
|
|
return;
|
|
}
|
|
this.setFillStrokeStyles_();
|
|
var context = this.context_;
|
|
var pixelCoordinates = ol.geom.transformSimpleGeometry2D(
|
|
circleGeometry, this.transform_, this.pixelCoordinates_);
|
|
var dx = pixelCoordinates[2] - pixelCoordinates[0];
|
|
var dy = pixelCoordinates[3] - pixelCoordinates[1];
|
|
var radius = Math.sqrt(dx * dx + dy * dy);
|
|
context.beginPath();
|
|
context.arc(pixelCoordinates[0], pixelCoordinates[1], radius, 0, 2 * Math.PI);
|
|
if (goog.isDef(state.fillStyle)) {
|
|
context.fill();
|
|
}
|
|
if (goog.isDef(state.strokeStyle)) {
|
|
goog.asserts.assert(goog.isDef(state.lineWidth));
|
|
context.stroke();
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.drawFeature = function(feature, style) {
|
|
var geometry = feature.getGeometry();
|
|
if (goog.isNull(geometry) ||
|
|
!ol.extent.intersects(this.extent_, geometry.getExtent())) {
|
|
return;
|
|
}
|
|
var zIndex = style.getZIndex();
|
|
if (!goog.isDef(zIndex)) {
|
|
zIndex = 0;
|
|
}
|
|
this.drawAsync(zIndex, function(render) {
|
|
render.setFillStrokeStyle(style.getFill(), style.getStroke());
|
|
render.setImageStyle(style.getImage());
|
|
var renderGeometry =
|
|
ol.render.canvas.Immediate.GEOMETRY_RENDERES_[geometry.getType()];
|
|
goog.asserts.assert(goog.isDef(renderGeometry));
|
|
renderGeometry.call(render, geometry, null);
|
|
});
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.drawGeometryCollectionGeometry =
|
|
function(geometryCollectionGeometry, data) {
|
|
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_RENDERES_[geometry.getType()];
|
|
goog.asserts.assert(goog.isDef(geometryRenderer));
|
|
geometryRenderer.call(this, geometry, data);
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.drawPointGeometry =
|
|
function(pointGeometry, data) {
|
|
this.drawImages_(pointGeometry);
|
|
this.drawText_(pointGeometry);
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.drawMultiPointGeometry =
|
|
function(multiPointGeometry, data) {
|
|
this.drawImages_(multiPointGeometry);
|
|
this.drawText_(multiPointGeometry);
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.drawLineStringGeometry =
|
|
function(lineStringGeometry, data) {
|
|
if (!ol.extent.intersects(this.extent_, lineStringGeometry.getExtent()) ||
|
|
!goog.isDef(this.state_.strokeStyle)) {
|
|
return;
|
|
}
|
|
this.setFillStrokeStyles_();
|
|
var context = this.context_;
|
|
var pixelCoordinates = ol.geom.transformSimpleGeometry2D(
|
|
lineStringGeometry, this.transform_, this.pixelCoordinates_);
|
|
context.beginPath();
|
|
this.moveToLineTo_(pixelCoordinates, 0, pixelCoordinates.length, false);
|
|
context.stroke();
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.drawMultiLineStringGeometry =
|
|
function(multiLineStringGeometry, data) {
|
|
var geometryExtent = multiLineStringGeometry.getExtent();
|
|
if (!ol.extent.intersects(this.extent_, geometryExtent) ||
|
|
!goog.isDef(this.state_.strokeStyle)) {
|
|
return;
|
|
}
|
|
this.setFillStrokeStyles_();
|
|
var context = this.context_;
|
|
var pixelCoordinates = ol.geom.transformSimpleGeometry2D(
|
|
multiLineStringGeometry, this.transform_, this.pixelCoordinates_);
|
|
context.beginPath();
|
|
var ends = multiLineStringGeometry.getEnds();
|
|
var offset = 0;
|
|
var i, ii;
|
|
for (i = 0, ii = ends.length; i < ii; ++i) {
|
|
offset = this.moveToLineTo_(pixelCoordinates, offset, ends[i], false);
|
|
}
|
|
context.stroke();
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.drawPolygonGeometry =
|
|
function(polygonGeometry, data) {
|
|
if (!ol.extent.intersects(this.extent_, polygonGeometry.getExtent())) {
|
|
return;
|
|
}
|
|
var state = this.state_;
|
|
if (!goog.isDef(state.fillStyle) && !goog.isDef(state.strokeStyle)) {
|
|
return;
|
|
}
|
|
this.setFillStrokeStyles_();
|
|
var context = this.context_;
|
|
var pixelCoordinates = ol.geom.transformSimpleGeometry2D(
|
|
polygonGeometry, this.transform_, this.pixelCoordinates_);
|
|
var ends = polygonGeometry.getEnds();
|
|
context.beginPath();
|
|
this.drawRings_(pixelCoordinates, 0, ends);
|
|
if (goog.isDef(state.fillStyle)) {
|
|
context.fill();
|
|
}
|
|
if (goog.isDef(state.strokeStyle)) {
|
|
goog.asserts.assert(goog.isDef(state.lineWidth));
|
|
context.stroke();
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.drawMultiPolygonGeometry =
|
|
function(multiPolygonGeometry, data) {
|
|
if (!ol.extent.intersects(this.extent_, multiPolygonGeometry.getExtent())) {
|
|
return;
|
|
}
|
|
var state = this.state_;
|
|
if (!goog.isDef(state.fillStyle) && !goog.isDef(state.strokeStyle)) {
|
|
return;
|
|
}
|
|
this.setFillStrokeStyles_();
|
|
var context = this.context_;
|
|
var pixelCoordinates = ol.geom.transformSimpleGeometry2D(
|
|
multiPolygonGeometry, this.transform_, this.pixelCoordinates_);
|
|
var endss = multiPolygonGeometry.getEndss();
|
|
var offset = 0;
|
|
var i, ii;
|
|
for (i = 0, ii = endss.length; i < ii; ++i) {
|
|
var ends = endss[i];
|
|
context.beginPath();
|
|
offset = this.drawRings_(pixelCoordinates, offset, ends);
|
|
if (goog.isDef(state.fillStyle)) {
|
|
context.fill();
|
|
}
|
|
if (goog.isDef(state.strokeStyle)) {
|
|
goog.asserts.assert(goog.isDef(state.lineWidth));
|
|
context.stroke();
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.drawText = goog.abstractMethod;
|
|
|
|
|
|
/**
|
|
* FIXME: empty description for jsdoc
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.flush = function() {
|
|
/** @type {Array.<number>} */
|
|
var zs = goog.array.map(goog.object.getKeys(this.callbacksByZIndex_), Number);
|
|
goog.array.sort(zs);
|
|
var i, ii, callbacks, j, jj;
|
|
for (i = 0, ii = zs.length; i < ii; ++i) {
|
|
callbacks = this.callbacksByZIndex_[zs[i].toString()];
|
|
for (j = 0, jj = callbacks.length; j < jj; ++j) {
|
|
callbacks[j](this);
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.setFillStrokeStyle =
|
|
function(fillStyle, strokeStyle) {
|
|
var state = this.state_;
|
|
if (!goog.isNull(fillStyle)) {
|
|
var fillStyleColor = fillStyle.getColor();
|
|
state.fillStyle = ol.color.asString(!goog.isNull(fillStyleColor) ?
|
|
fillStyleColor : ol.render.canvas.defaultFillStyle);
|
|
} else {
|
|
state.fillStyle = undefined;
|
|
}
|
|
if (!goog.isNull(strokeStyle)) {
|
|
var strokeStyleColor = strokeStyle.getColor();
|
|
state.strokeStyle = ol.color.asString(!goog.isNull(strokeStyleColor) ?
|
|
strokeStyleColor : ol.render.canvas.defaultStrokeStyle);
|
|
var strokeStyleLineCap = strokeStyle.getLineCap();
|
|
state.lineCap = goog.isDef(strokeStyleLineCap) ?
|
|
strokeStyleLineCap : ol.render.canvas.defaultLineCap;
|
|
var strokeStyleLineDash = strokeStyle.getLineDash();
|
|
state.lineDash = !goog.isNull(strokeStyleLineDash) ?
|
|
strokeStyleLineDash : ol.render.canvas.defaultLineDash;
|
|
var strokeStyleLineJoin = strokeStyle.getLineJoin();
|
|
state.lineJoin = goog.isDef(strokeStyleLineJoin) ?
|
|
strokeStyleLineJoin : ol.render.canvas.defaultLineJoin;
|
|
var strokeStyleWidth = strokeStyle.getWidth();
|
|
state.lineWidth = this.pixelRatio_ * (goog.isDef(strokeStyleWidth) ?
|
|
strokeStyleWidth : ol.render.canvas.defaultLineWidth);
|
|
var strokeStyleMiterLimit = strokeStyle.getMiterLimit();
|
|
state.miterLimit = goog.isDef(strokeStyleMiterLimit) ?
|
|
strokeStyleMiterLimit : ol.render.canvas.defaultMiterLimit;
|
|
} else {
|
|
state.strokeStyle = undefined;
|
|
state.lineCap = undefined;
|
|
state.lineDash = null;
|
|
state.lineJoin = undefined;
|
|
state.lineWidth = undefined;
|
|
state.miterLimit = undefined;
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @private
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.setFillStrokeStyles_ = function() {
|
|
var state = this.state_;
|
|
var context = this.context_;
|
|
var fillStyle = state.fillStyle;
|
|
var strokeStyle = state.strokeStyle;
|
|
var lineCap = state.lineCap;
|
|
var lineDash = state.lineDash;
|
|
var lineJoin = state.lineJoin;
|
|
var lineWidth = state.lineWidth;
|
|
var miterLimit = state.miterLimit;
|
|
if (goog.isDef(fillStyle) && state.currentFillStyle != fillStyle) {
|
|
context.fillStyle = fillStyle;
|
|
state.currentFillStyle = fillStyle;
|
|
}
|
|
if (goog.isDef(strokeStyle)) {
|
|
goog.asserts.assert(goog.isDef(lineWidth));
|
|
goog.asserts.assert(goog.isDef(lineCap));
|
|
goog.asserts.assert(!goog.isNull(lineDash));
|
|
goog.asserts.assert(goog.isDef(lineJoin));
|
|
goog.asserts.assert(goog.isDef(miterLimit));
|
|
if (state.currentStrokeStyle != strokeStyle ||
|
|
state.currentLineCap != lineCap ||
|
|
state.currentLineDash != lineDash ||
|
|
state.currentLineJoin != lineJoin ||
|
|
state.currentMiterLimit != miterLimit ||
|
|
state.currentLineWidth != lineWidth) {
|
|
context.strokeStyle = strokeStyle;
|
|
context.lineCap = lineCap;
|
|
if (goog.isDef(context.setLineDash)) {
|
|
context.setLineDash(lineDash);
|
|
}
|
|
context.lineJoin = lineJoin;
|
|
context.miterLimit = miterLimit;
|
|
context.lineWidth = lineWidth;
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.setImageStyle = function(imageStyle) {
|
|
if (!goog.isNull(imageStyle)) {
|
|
var anchor = imageStyle.getAnchor();
|
|
goog.asserts.assert(!goog.isNull(anchor));
|
|
var size = imageStyle.getSize();
|
|
goog.asserts.assert(!goog.isNull(size));
|
|
// FIXME pixel ratio
|
|
var image = imageStyle.getImage(1);
|
|
goog.asserts.assert(!goog.isNull(image));
|
|
var state = this.state_;
|
|
state.image = image;
|
|
state.anchorX = anchor[0];
|
|
state.anchorY = anchor[1];
|
|
state.height = size[1];
|
|
state.rotation = imageStyle.getRotation();
|
|
state.scale = imageStyle.getScale();
|
|
state.snapToPixel = imageStyle.getSnapToPixel();
|
|
state.width = size[0];
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Immediate.prototype.setTextStyle = function(textStyle) {
|
|
var context = this.context_;
|
|
var state = this.state_;
|
|
if (!ol.style.Text.equals(state.textStyle, textStyle)) {
|
|
if (goog.isDefAndNotNull(textStyle)) {
|
|
var textStyleFont = textStyle.getFont();
|
|
context.font = goog.isDef(textStyleFont) ?
|
|
textStyleFont : ol.render.canvas.defaultFont;
|
|
var textStyleTextAlign = textStyle.getTextAlign();
|
|
context.textAlign = goog.isDef(textStyleTextAlign) ?
|
|
textStyleTextAlign : ol.render.canvas.defaultTextAlign;
|
|
var textStyleTextBaseline = textStyle.getTextBaseline();
|
|
context.textBaseline = goog.isDef(textStyleTextBaseline) ?
|
|
textStyleTextBaseline : ol.render.canvas.defaultTextBaseline;
|
|
}
|
|
state.textStyle = textStyle;
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @const
|
|
* @private
|
|
* @type {Object.<ol.geom.GeometryType,
|
|
* function(this: ol.render.canvas.Immediate, ol.geom.Geometry,
|
|
* Object)>}
|
|
*/
|
|
ol.render.canvas.Immediate.GEOMETRY_RENDERES_ = {
|
|
'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
|
|
};
|