815 lines
21 KiB
JavaScript
815 lines
21 KiB
JavaScript
// FIXME decide default snapToPixel behaviour
|
|
// FIXME add option to apply snapToPixel to all coordinates?
|
|
|
|
goog.provide('ol.render.canvas.ReplayGroup');
|
|
|
|
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.geom.flat');
|
|
goog.require('ol.render.IRender');
|
|
goog.require('ol.render.IReplayGroup');
|
|
goog.require('ol.vec.Mat4');
|
|
|
|
|
|
/**
|
|
* @enum {number}
|
|
*/
|
|
ol.render.canvas.Instruction = {
|
|
BEGIN_PATH: 0,
|
|
CLOSE_PATH: 1,
|
|
DRAW_IMAGE: 2,
|
|
FILL: 3,
|
|
MOVE_TO_LINE_TO: 4,
|
|
SET_FILL_STYLE: 5,
|
|
SET_STROKE_STYLE: 6,
|
|
STROKE: 7
|
|
};
|
|
|
|
|
|
|
|
/**
|
|
* @constructor
|
|
* @implements {ol.render.IRender}
|
|
* @protected
|
|
*/
|
|
ol.render.canvas.Replay = function() {
|
|
|
|
/**
|
|
* @protected
|
|
* @type {Array.<*>}
|
|
*/
|
|
this.instructions = [];
|
|
|
|
/**
|
|
* @protected
|
|
* @type {Array.<number>}
|
|
*/
|
|
this.coordinates = [];
|
|
|
|
/**
|
|
* @private
|
|
* @type {goog.vec.Mat4.Number}
|
|
*/
|
|
this.renderedTransform_ = goog.vec.Mat4.createNumber();
|
|
|
|
/**
|
|
* @private
|
|
* @type {Array.<number>}
|
|
*/
|
|
this.pixelCoordinates_ = [];
|
|
|
|
/**
|
|
* @private
|
|
* @type {ol.Extent}
|
|
*/
|
|
this.extent_ = ol.extent.createEmpty();
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {Array.<number>} flatCoordinates Flat coordinates.
|
|
* @param {number} offset Offset.
|
|
* @param {number} end End.
|
|
* @param {number} stride Stride.
|
|
* @param {boolean} close Close.
|
|
* @protected
|
|
* @return {number} My end.
|
|
*/
|
|
ol.render.canvas.Replay.prototype.appendFlatCoordinates =
|
|
function(flatCoordinates, offset, end, stride, close) {
|
|
var myEnd = this.coordinates.length;
|
|
var i;
|
|
for (i = offset; i < end; i += stride) {
|
|
this.coordinates[myEnd++] = flatCoordinates[i];
|
|
this.coordinates[myEnd++] = flatCoordinates[i + 1];
|
|
}
|
|
if (close) {
|
|
this.coordinates[myEnd++] = flatCoordinates[offset];
|
|
this.coordinates[myEnd++] = flatCoordinates[offset + 1];
|
|
}
|
|
return myEnd;
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {CanvasRenderingContext2D} context Context.
|
|
* @param {goog.vec.Mat4.AnyType} transform Transform.
|
|
*/
|
|
ol.render.canvas.Replay.prototype.draw = function(context, transform) {
|
|
/** @type {Array.<number>} */
|
|
var pixelCoordinates;
|
|
if (ol.vec.Mat4.equal2D(transform, this.renderedTransform_)) {
|
|
pixelCoordinates = this.pixelCoordinates_;
|
|
} else {
|
|
pixelCoordinates = ol.geom.flat.transform2D(
|
|
this.coordinates, 2, transform, this.pixelCoordinates_);
|
|
goog.vec.Mat4.setFromArray(this.renderedTransform_, transform);
|
|
goog.asserts.assert(pixelCoordinates === this.pixelCoordinates_);
|
|
}
|
|
var instructions = this.instructions;
|
|
var i = 0; // instruction index
|
|
var ii = instructions.length; // end of instructions
|
|
var d = 0; // data index
|
|
var dd; // end of per-instruction data
|
|
while (i < ii) {
|
|
var instruction = instructions[i];
|
|
var type = /** @type {ol.render.canvas.Instruction} */ (instruction[0]);
|
|
if (type == ol.render.canvas.Instruction.BEGIN_PATH) {
|
|
context.beginPath();
|
|
++i;
|
|
} else if (type == ol.render.canvas.Instruction.CLOSE_PATH) {
|
|
context.closePath();
|
|
++i;
|
|
} else if (type == ol.render.canvas.Instruction.DRAW_IMAGE) {
|
|
dd = /** @type {number} */ (instruction[1]);
|
|
var anchorX = /** @type {number} */ (instruction[2]);
|
|
var anchorY = /** @type {number} */ (instruction[3]);
|
|
var width = /** @type {number} */ (instruction[4]);
|
|
var height = /** @type {number} */ (instruction[5]);
|
|
var image = /** @type {HTMLCanvasElement|HTMLVideoElement|Image} */
|
|
(instruction[6]);
|
|
var snapToPixel = /** @type {boolean|undefined} */ (instruction[7]);
|
|
for (; d < dd; d += 2) {
|
|
var x = pixelCoordinates[d] - anchorX;
|
|
var y = pixelCoordinates[d + 1] - anchorY;
|
|
if (snapToPixel) {
|
|
x = (x + 0.5) | 0;
|
|
y = (y + 0.5) | 0;
|
|
}
|
|
context.drawImage(image, x, y, width, height);
|
|
}
|
|
++i;
|
|
} else if (type == ol.render.canvas.Instruction.FILL) {
|
|
context.fill();
|
|
++i;
|
|
} else if (type == ol.render.canvas.Instruction.MOVE_TO_LINE_TO) {
|
|
context.moveTo(pixelCoordinates[d], pixelCoordinates[d + 1]);
|
|
goog.asserts.assert(goog.isNumber(instruction[1]));
|
|
dd = /** @type {number} */ (instruction[1]);
|
|
for (d += 2; d < dd; d += 2) {
|
|
context.lineTo(pixelCoordinates[d], pixelCoordinates[d + 1]);
|
|
}
|
|
++i;
|
|
} else if (type == ol.render.canvas.Instruction.SET_FILL_STYLE) {
|
|
goog.asserts.assert(goog.isString(instruction[1]));
|
|
context.fillStyle = /** @type {string} */ (instruction[1]);
|
|
++i;
|
|
} else if (type == ol.render.canvas.Instruction.SET_STROKE_STYLE) {
|
|
goog.asserts.assert(goog.isString(instruction[1]));
|
|
goog.asserts.assert(goog.isNumber(instruction[2]));
|
|
context.strokeStyle = /** @type {string} */ (instruction[1]);
|
|
context.lineWidth = /** @type {number} */ (instruction[2]);
|
|
++i;
|
|
} else if (type == ol.render.canvas.Instruction.STROKE) {
|
|
context.stroke();
|
|
++i;
|
|
} else {
|
|
goog.asserts.fail();
|
|
++i; // consume the instruction anyway, to avoid an infinite loop
|
|
}
|
|
}
|
|
// assert that all data were consumed
|
|
goog.asserts.assert(d == pixelCoordinates.length);
|
|
// assert that all instructions were consumed
|
|
goog.asserts.assert(i == instructions.length);
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Replay.prototype.drawFeature = goog.abstractMethod;
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Replay.prototype.drawLineStringGeometry = goog.abstractMethod;
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Replay.prototype.drawMultiLineStringGeometry =
|
|
goog.abstractMethod;
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Replay.prototype.drawPointGeometry = goog.abstractMethod;
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Replay.prototype.drawMultiPointGeometry = goog.abstractMethod;
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Replay.prototype.drawPolygonGeometry = goog.abstractMethod;
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Replay.prototype.drawMultiPolygonGeometry =
|
|
goog.abstractMethod;
|
|
|
|
|
|
/**
|
|
* FIXME empty description for jsdoc
|
|
*/
|
|
ol.render.canvas.Replay.prototype.finish = goog.nullFunction;
|
|
|
|
|
|
/**
|
|
* @return {ol.Extent} Extent.
|
|
*/
|
|
ol.render.canvas.Replay.prototype.getExtent = function() {
|
|
return this.extent_;
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Replay.prototype.setFillStrokeStyle = goog.abstractMethod;
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Replay.prototype.setImageStyle = goog.abstractMethod;
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.Replay.prototype.setTextStyle = goog.abstractMethod;
|
|
|
|
|
|
|
|
/**
|
|
* @constructor
|
|
* @extends {ol.render.canvas.Replay}
|
|
* @protected
|
|
*/
|
|
ol.render.canvas.ImageReplay = function() {
|
|
|
|
goog.base(this);
|
|
|
|
/**
|
|
* @private
|
|
* @type {number}
|
|
*/
|
|
this.anchorX_ = undefined;
|
|
|
|
/**
|
|
* @private
|
|
* @type {number}
|
|
*/
|
|
this.anchorY_ = undefined;
|
|
|
|
/**
|
|
* @private
|
|
* @type {HTMLCanvasElement|HTMLVideoElement|Image}
|
|
*/
|
|
this.image_ = null;
|
|
|
|
/**
|
|
* @private
|
|
* @type {number}
|
|
*/
|
|
this.height_ = undefined;
|
|
|
|
/**
|
|
* @private
|
|
* @type {number}
|
|
*/
|
|
this.width_ = undefined;
|
|
|
|
/**
|
|
* @private
|
|
* @type {boolean|undefined}
|
|
*/
|
|
this.snapToPixel_ = undefined;
|
|
|
|
};
|
|
goog.inherits(ol.render.canvas.ImageReplay, ol.render.canvas.Replay);
|
|
|
|
|
|
/**
|
|
* @param {Array.<number>} flatCoordinates Flat coordinates.
|
|
* @param {number} offset Offset.
|
|
* @param {number} end End.
|
|
* @param {number} stride Stride.
|
|
* @private
|
|
* @return {number} My end.
|
|
*/
|
|
ol.render.canvas.ImageReplay.prototype.drawCoordinates_ =
|
|
function(flatCoordinates, offset, end, stride) {
|
|
return this.appendFlatCoordinates(
|
|
flatCoordinates, offset, end, stride, false);
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.ImageReplay.prototype.drawPointGeometry =
|
|
function(pointGeometry) {
|
|
if (goog.isNull(this.image_)) {
|
|
return;
|
|
}
|
|
goog.asserts.assert(goog.isDef(this.anchorX_));
|
|
goog.asserts.assert(goog.isDef(this.anchorY_));
|
|
goog.asserts.assert(goog.isDef(this.height_));
|
|
goog.asserts.assert(goog.isDef(this.width_));
|
|
ol.extent.extend(this.extent_, pointGeometry.getExtent());
|
|
var flatCoordinates = pointGeometry.getFlatCoordinates();
|
|
var stride = pointGeometry.getStride();
|
|
var myEnd = this.drawCoordinates_(
|
|
flatCoordinates, 0, flatCoordinates.length, stride);
|
|
this.instructions.push([
|
|
ol.render.canvas.Instruction.DRAW_IMAGE, myEnd,
|
|
this.anchorX_, this.anchorY_, this.width_, this.height_,
|
|
this.image_, this.snapToPixel_
|
|
]);
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.ImageReplay.prototype.drawMultiPointGeometry =
|
|
function(multiPointGeometry) {
|
|
if (goog.isNull(this.image_)) {
|
|
return;
|
|
}
|
|
goog.asserts.assert(goog.isDef(this.anchorX_));
|
|
goog.asserts.assert(goog.isDef(this.anchorY_));
|
|
goog.asserts.assert(goog.isDef(this.height_));
|
|
goog.asserts.assert(goog.isDef(this.width_));
|
|
ol.extent.extend(this.extent_, multiPointGeometry.getExtent());
|
|
var flatCoordinates = multiPointGeometry.getFlatCoordinates();
|
|
var stride = multiPointGeometry.getStride();
|
|
var myEnd = this.drawCoordinates_(
|
|
flatCoordinates, 0, flatCoordinates.length, stride);
|
|
this.instructions.push([
|
|
ol.render.canvas.Instruction.DRAW_IMAGE, myEnd,
|
|
this.anchorX_, this.anchorY_, this.width_, this.height_,
|
|
this.image_, this.snapToPixel_
|
|
]);
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.ImageReplay.prototype.finish = function() {
|
|
// FIXME this doesn't really protect us against further calls to draw*Geometry
|
|
this.anchorX_ = undefined;
|
|
this.anchorY_ = undefined;
|
|
this.image_ = null;
|
|
this.height_ = undefined;
|
|
this.width_ = undefined;
|
|
this.snapToPixel_ = undefined;
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.ImageReplay.prototype.setImageStyle = function(imageStyle) {
|
|
goog.asserts.assert(!goog.isNull(imageStyle));
|
|
goog.asserts.assert(!goog.isNull(imageStyle.anchor));
|
|
goog.asserts.assert(goog.isDef(imageStyle.size));
|
|
goog.asserts.assert(!goog.isNull(imageStyle.image));
|
|
this.anchorX_ = imageStyle.anchor[0];
|
|
this.anchorY_ = imageStyle.anchor[1];
|
|
this.image_ = imageStyle.image;
|
|
this.width_ = imageStyle.size[0];
|
|
this.height_ = imageStyle.size[1];
|
|
this.snapToPixel_ = imageStyle.snapToPixel;
|
|
};
|
|
|
|
|
|
|
|
/**
|
|
* @constructor
|
|
* @extends {ol.render.canvas.Replay}
|
|
* @protected
|
|
*/
|
|
ol.render.canvas.LineStringReplay = function() {
|
|
|
|
goog.base(this);
|
|
|
|
/**
|
|
* @private
|
|
* @type {{currentStrokeStyle: (string|undefined),
|
|
* currentLineWidth: (number|undefined),
|
|
* lastStroke: number,
|
|
* strokeStyle: (string|undefined),
|
|
* lineWidth: (number|undefined)}|null}
|
|
*/
|
|
this.state_ = {
|
|
currentStrokeStyle: undefined,
|
|
currentLineWidth: undefined,
|
|
lastStroke: 0,
|
|
strokeStyle: undefined,
|
|
lineWidth: undefined
|
|
};
|
|
|
|
};
|
|
goog.inherits(ol.render.canvas.LineStringReplay, ol.render.canvas.Replay);
|
|
|
|
|
|
/**
|
|
* @param {Array.<number>} flatCoordinates Flat coordinates.
|
|
* @param {number} offset Offset.
|
|
* @param {number} end End.
|
|
* @param {number} stride Stride.
|
|
* @private
|
|
* @return {number} end.
|
|
*/
|
|
ol.render.canvas.LineStringReplay.prototype.drawFlatCoordinates_ =
|
|
function(flatCoordinates, offset, end, stride) {
|
|
var state = this.state_;
|
|
var strokeStyle = state.strokeStyle;
|
|
var lineWidth = state.lineWidth;
|
|
goog.asserts.assert(goog.isDef(strokeStyle));
|
|
goog.asserts.assert(goog.isDef(lineWidth));
|
|
if (state.currentStrokeStyle != strokeStyle ||
|
|
state.currentLineWidth != lineWidth) {
|
|
if (state.lastStroke != this.coordinates.length) {
|
|
this.instructions.push([ol.render.canvas.Instruction.STROKE]);
|
|
state.lastStroke = this.coordinates.length;
|
|
}
|
|
this.instructions.push(
|
|
[ol.render.canvas.Instruction.SET_STROKE_STYLE,
|
|
strokeStyle, lineWidth],
|
|
[ol.render.canvas.Instruction.BEGIN_PATH]);
|
|
state.currentStrokeStyle = strokeStyle;
|
|
state.currentLineWidth = lineWidth;
|
|
}
|
|
var myEnd = this.appendFlatCoordinates(
|
|
flatCoordinates, offset, end, stride, false);
|
|
this.instructions.push([ol.render.canvas.Instruction.MOVE_TO_LINE_TO, myEnd]);
|
|
return end;
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.LineStringReplay.prototype.drawLineStringGeometry =
|
|
function(lineStringGeometry) {
|
|
var state = this.state_;
|
|
goog.asserts.assert(!goog.isNull(state));
|
|
var strokeStyle = state.strokeStyle;
|
|
var lineWidth = state.lineWidth;
|
|
if (!goog.isDef(strokeStyle) || !goog.isDef(lineWidth)) {
|
|
return;
|
|
}
|
|
ol.extent.extend(this.extent_, lineStringGeometry.getExtent());
|
|
var flatCoordinates = lineStringGeometry.getFlatCoordinates();
|
|
var stride = lineStringGeometry.getStride();
|
|
this.drawFlatCoordinates_(
|
|
flatCoordinates, 0, flatCoordinates.length, stride);
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.LineStringReplay.prototype.drawMultiLineStringGeometry =
|
|
function(multiLineStringGeometry) {
|
|
var state = this.state_;
|
|
goog.asserts.assert(!goog.isNull(state));
|
|
var strokeStyle = state.strokeStyle;
|
|
var lineWidth = state.lineWidth;
|
|
if (!goog.isDef(strokeStyle) || !goog.isDef(lineWidth)) {
|
|
return;
|
|
}
|
|
ol.extent.extend(this.extent_, multiLineStringGeometry.getExtent());
|
|
var ends = multiLineStringGeometry.getEnds();
|
|
var flatCoordinates = multiLineStringGeometry.getFlatCoordinates();
|
|
var stride = multiLineStringGeometry.getStride();
|
|
var offset = 0;
|
|
var i, ii;
|
|
for (i = 0, ii = ends.length; i < ii; ++i) {
|
|
offset = this.drawFlatCoordinates_(
|
|
flatCoordinates, offset, ends[i], stride);
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.LineStringReplay.prototype.finish = function() {
|
|
var state = this.state_;
|
|
goog.asserts.assert(!goog.isNull(state));
|
|
if (state.lastStroke != this.coordinates.length) {
|
|
this.instructions.push([ol.render.canvas.Instruction.STROKE]);
|
|
}
|
|
this.state_ = null;
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.LineStringReplay.prototype.setFillStrokeStyle =
|
|
function(fillStyle, strokeStyle) {
|
|
goog.asserts.assert(!goog.isNull(this.state_));
|
|
goog.asserts.assert(goog.isNull(fillStyle));
|
|
goog.asserts.assert(!goog.isNull(strokeStyle));
|
|
goog.asserts.assert(goog.isDefAndNotNull(strokeStyle.color));
|
|
goog.asserts.assert(goog.isDef(strokeStyle.width));
|
|
this.state_.strokeStyle = ol.color.asString(strokeStyle.color);
|
|
this.state_.lineWidth = strokeStyle.width;
|
|
};
|
|
|
|
|
|
|
|
/**
|
|
* @constructor
|
|
* @extends {ol.render.canvas.Replay}
|
|
* @protected
|
|
*/
|
|
ol.render.canvas.PolygonReplay = function() {
|
|
|
|
goog.base(this);
|
|
|
|
/**
|
|
* @private
|
|
* @type {{currentFillColor: (string|undefined),
|
|
* currentStrokeStyle: (string|undefined),
|
|
* currentLineWidth: (number|undefined),
|
|
* fillStyle: (string|undefined),
|
|
* strokeStyle: (string|undefined),
|
|
* lineWidth: (number|undefined)}|null}
|
|
*/
|
|
this.state_ = {
|
|
currentFillColor: undefined,
|
|
currentStrokeStyle: undefined,
|
|
currentLineWidth: undefined,
|
|
fillStyle: undefined,
|
|
strokeStyle: undefined,
|
|
lineWidth: undefined
|
|
};
|
|
|
|
};
|
|
goog.inherits(ol.render.canvas.PolygonReplay, ol.render.canvas.Replay);
|
|
|
|
|
|
/**
|
|
* @param {Array.<number>} flatCoordinates Flat coordinates.
|
|
* @param {number} offset Offset.
|
|
* @param {Array.<number>} ends Ends.
|
|
* @param {number} stride Stride.
|
|
* @private
|
|
* @return {number} End.
|
|
*/
|
|
ol.render.canvas.PolygonReplay.prototype.drawFlatCoordinatess_ =
|
|
function(flatCoordinates, offset, ends, stride) {
|
|
var state = this.state_;
|
|
this.instructions.push([ol.render.canvas.Instruction.BEGIN_PATH]);
|
|
var i, ii;
|
|
for (i = 0, ii = ends.length; i < ii; ++i) {
|
|
var end = ends[i];
|
|
var myEnd =
|
|
this.appendFlatCoordinates(flatCoordinates, offset, end, stride, true);
|
|
this.instructions.push(
|
|
[ol.render.canvas.Instruction.MOVE_TO_LINE_TO, myEnd],
|
|
[ol.render.canvas.Instruction.CLOSE_PATH]);
|
|
offset = end;
|
|
}
|
|
// FIXME is it quicker to fill and stroke each polygon individually,
|
|
// FIXME or all polygons together?
|
|
if (goog.isDef(state.fillStyle)) {
|
|
this.instructions.push([ol.render.canvas.Instruction.FILL]);
|
|
}
|
|
if (goog.isDef(state.strokeStyle)) {
|
|
goog.asserts.assert(goog.isDef(state.lineWidth));
|
|
this.instructions.push([ol.render.canvas.Instruction.STROKE]);
|
|
}
|
|
return offset;
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.PolygonReplay.prototype.drawPolygonGeometry =
|
|
function(polygonGeometry) {
|
|
var state = this.state_;
|
|
goog.asserts.assert(!goog.isNull(state));
|
|
var fillStyle = state.fillStyle;
|
|
var strokeStyle = state.strokeStyle;
|
|
if (!goog.isDef(fillStyle) && !goog.isDef(strokeStyle)) {
|
|
return;
|
|
}
|
|
if (goog.isDef(strokeStyle)) {
|
|
goog.asserts.assert(goog.isDef(state.lineWidth));
|
|
}
|
|
ol.extent.extend(this.extent_, polygonGeometry.getExtent());
|
|
this.setFillStrokeStyles_();
|
|
var ends = polygonGeometry.getEnds();
|
|
var flatCoordinates = polygonGeometry.getFlatCoordinates();
|
|
var stride = polygonGeometry.getStride();
|
|
this.drawFlatCoordinatess_(flatCoordinates, 0, ends, stride);
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.PolygonReplay.prototype.drawMultiPolygonGeometry =
|
|
function(multiPolygonGeometry) {
|
|
var state = this.state_;
|
|
goog.asserts.assert(!goog.isNull(state));
|
|
var fillStyle = state.fillStyle;
|
|
var strokeStyle = state.strokeStyle;
|
|
if (!goog.isDef(fillStyle) && !goog.isDef(strokeStyle)) {
|
|
return;
|
|
}
|
|
if (goog.isDef(strokeStyle)) {
|
|
goog.asserts.assert(goog.isDef(state.lineWidth));
|
|
}
|
|
ol.extent.extend(this.extent_, multiPolygonGeometry.getExtent());
|
|
this.setFillStrokeStyles_();
|
|
var endss = multiPolygonGeometry.getEndss();
|
|
var flatCoordinates = multiPolygonGeometry.getFlatCoordinates();
|
|
var stride = multiPolygonGeometry.getStride();
|
|
var offset = 0;
|
|
var i, ii;
|
|
for (i = 0, ii = endss.length; i < ii; ++i) {
|
|
offset = this.drawFlatCoordinatess_(
|
|
flatCoordinates, offset, endss[i], stride);
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.PolygonReplay.prototype.finish = function() {
|
|
goog.asserts.assert(!goog.isNull(this.state_));
|
|
this.state_ = null;
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.PolygonReplay.prototype.setFillStrokeStyle =
|
|
function(fillStyle, strokeStyle) {
|
|
goog.asserts.assert(!goog.isNull(this.state_));
|
|
goog.asserts.assert(!goog.isNull(fillStyle) || !goog.isNull(strokeStyle));
|
|
if (!goog.isNull(fillStyle)) {
|
|
goog.asserts.assert(goog.isDefAndNotNull(fillStyle.color));
|
|
this.state_.fillStyle = ol.color.asString(fillStyle.color);
|
|
}
|
|
if (!goog.isNull(strokeStyle)) {
|
|
goog.asserts.assert(goog.isDefAndNotNull(strokeStyle.color));
|
|
goog.asserts.assert(goog.isDef(strokeStyle.width));
|
|
this.state_.strokeStyle = ol.color.asString(strokeStyle.color);
|
|
this.state_.lineWidth = strokeStyle.width;
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @private
|
|
*/
|
|
ol.render.canvas.PolygonReplay.prototype.setFillStrokeStyles_ = function() {
|
|
var state = this.state_;
|
|
var fillStyle = state.fillStyle;
|
|
var strokeStyle = state.strokeStyle;
|
|
var lineWidth = state.lineWidth;
|
|
if (goog.isDef(fillStyle) && state.currentFillColor != fillStyle) {
|
|
this.instructions.push(
|
|
[ol.render.canvas.Instruction.SET_FILL_STYLE, fillStyle]);
|
|
state.currentFillColor = state.fillStyle;
|
|
}
|
|
if (goog.isDef(strokeStyle)) {
|
|
goog.asserts.assert(goog.isDef(lineWidth));
|
|
if (state.currentStrokeStyle != strokeStyle ||
|
|
state.currentLineWidth != lineWidth) {
|
|
this.instructions.push(
|
|
[ol.render.canvas.Instruction.SET_STROKE_STYLE,
|
|
strokeStyle, lineWidth]);
|
|
state.currentStrokeStyle = strokeStyle;
|
|
state.currentLineWidth = lineWidth;
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
|
|
/**
|
|
* @constructor
|
|
* @implements {ol.render.IReplayGroup}
|
|
*/
|
|
ol.render.canvas.ReplayGroup = function() {
|
|
|
|
/**
|
|
* @private
|
|
* @type {Object.<string,
|
|
* Object.<ol.render.ReplayType, ol.render.canvas.Replay>>}
|
|
*/
|
|
this.replayesByZIndex_ = {};
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {CanvasRenderingContext2D} context Context.
|
|
* @param {ol.Extent} extent Extent.
|
|
* @param {goog.vec.Mat4.AnyType} transform Transform.
|
|
*/
|
|
ol.render.canvas.ReplayGroup.prototype.draw =
|
|
function(context, extent, transform) {
|
|
/** @type {Array.<number>} */
|
|
var zs = goog.array.map(goog.object.getKeys(this.replayesByZIndex_), Number);
|
|
goog.array.sort(zs);
|
|
var i, ii;
|
|
for (i = 0, ii = zs.length; i < ii; ++i) {
|
|
var replayes = this.replayesByZIndex_[zs[i].toString()];
|
|
var replayType;
|
|
for (replayType in replayes) {
|
|
var replay = replayes[replayType];
|
|
if (ol.extent.intersects(extent, replay.getExtent())) {
|
|
replay.draw(context, transform);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.ReplayGroup.prototype.finish = function() {
|
|
var zKey;
|
|
for (zKey in this.replayesByZIndex_) {
|
|
var replayes = this.replayesByZIndex_[zKey];
|
|
var replayKey;
|
|
for (replayKey in replayes) {
|
|
replayes[replayKey].finish();
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.ReplayGroup.prototype.getReplay =
|
|
function(zIndex, replayType) {
|
|
var zIndexKey = goog.isDef(zIndex) ? zIndex.toString() : '0';
|
|
var replayes = this.replayesByZIndex_[zIndexKey];
|
|
if (!goog.isDef(replayes)) {
|
|
replayes = {};
|
|
this.replayesByZIndex_[zIndexKey] = replayes;
|
|
}
|
|
var replay = replayes[replayType];
|
|
if (!goog.isDef(replay)) {
|
|
var constructor = ol.render.canvas.BATCH_CONSTRUCTORS_[replayType];
|
|
goog.asserts.assert(goog.isDef(constructor));
|
|
replay = new constructor();
|
|
replayes[replayType] = replay;
|
|
}
|
|
return replay;
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.render.canvas.ReplayGroup.prototype.isEmpty = function() {
|
|
return goog.object.isEmpty(this.replayesByZIndex_);
|
|
};
|
|
|
|
|
|
/**
|
|
* @const
|
|
* @private
|
|
* @type {Object.<ol.render.ReplayType, function(new: ol.render.canvas.Replay)>}
|
|
*/
|
|
ol.render.canvas.BATCH_CONSTRUCTORS_ = {
|
|
'Image': ol.render.canvas.ImageReplay,
|
|
'LineString': ol.render.canvas.LineStringReplay,
|
|
'Polygon': ol.render.canvas.PolygonReplay
|
|
};
|