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Store raw style values for ImageReplay

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This commit is contained in:
Éric Lemoine
2013-11-21 11:11:34 +01:00
parent 5493543c1f
commit c0eb7bb1f6
1 changed files with 39 additions and 13 deletions
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52
src/ol/render/canvas/canvasreplay.js
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@@ -127,15 +127,18 @@ ol.render.canvas.Replay.prototype.draw = function(context, transform) {
++i;
} else if (type == ol.render.canvas.Instruction.DRAW_IMAGE) {
dd = /** @type {number} */ (instruction[1]);
var imageStyle = /** @type {ol.style.Image} */ (instruction[2]);
var anchor = /** @type {Array.<number>} */ (instruction[2]);
var image = /** @type {HTMLCanvasElement|HTMLVideoElement|Image} */
(instruction[3]);
var snapToPixel = /** @type {boolean|undefined} */ (instruction[4]);
for (; d < dd; d += 2) {
var x = pixelCoordinates[d] - imageStyle.anchor[0];
var y = pixelCoordinates[d + 1] - imageStyle.anchor[1];
if (imageStyle.snapToPixel) {
var x = pixelCoordinates[d] - anchor[0];
var y = pixelCoordinates[d + 1] - anchor[1];
if (snapToPixel) {
x = (x + 0.5) | 0;
y = (y + 0.5) | 0;
}
context.drawImage(imageStyle.image, x, y);
context.drawImage(image, x, y);
}
++i;
} else if (type == ol.render.canvas.Instruction.FILL) {
@@ -262,9 +265,21 @@ ol.render.canvas.ImageReplay = function() {
/**
* @private
* @type {ol.style.Image}
* @type {Array.<number>}
*/
this.imageStyle_ = null;
this.anchor_ = null;
/**
* @private
* @type {HTMLCanvasElement|HTMLVideoElement|Image}
*/
this.image_ = null;
/**
* @private
* @type {boolean|undefined}
*/
this.snapToPixel_ = undefined;
};
goog.inherits(ol.render.canvas.ImageReplay, ol.render.canvas.Replay);
@@ -290,16 +305,18 @@ ol.render.canvas.ImageReplay.prototype.drawCoordinates_ =
*/
ol.render.canvas.ImageReplay.prototype.drawPointGeometry =
function(pointGeometry) {
if (!goog.isDefAndNotNull(this.imageStyle_)) {
if (goog.isNull(this.image_)) {
return;
}
goog.asserts.assert(!goog.isNull(this.anchor_));
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.imageStyle_]);
[ol.render.canvas.Instruction.DRAW_IMAGE, myEnd,
this.anchor_, this.image_, this.snapToPixel_]);
};
@@ -308,16 +325,18 @@ ol.render.canvas.ImageReplay.prototype.drawPointGeometry =
*/
ol.render.canvas.ImageReplay.prototype.drawMultiPointGeometry =
function(multiPointGeometry) {
if (!goog.isDefAndNotNull(this.imageStyle_)) {
if (goog.isNull(this.image_)) {
return;
}
goog.asserts.assert(!goog.isNull(this.anchor_));
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.imageStyle_]);
[ol.render.canvas.Instruction.DRAW_IMAGE, myEnd,
this.anchor_, this.image_, this.snapToPixel_]);
};
@@ -326,7 +345,9 @@ ol.render.canvas.ImageReplay.prototype.drawMultiPointGeometry =
*/
ol.render.canvas.ImageReplay.prototype.finish = function() {
// FIXME this doesn't really protect us against further calls to draw*Geometry
this.imageStyle_ = null;
this.anchor_ = null;
this.image_ = null;
this.snapToPixel_ = undefined;
};
@@ -334,7 +355,12 @@ ol.render.canvas.ImageReplay.prototype.finish = function() {
* @inheritDoc
*/
ol.render.canvas.ImageReplay.prototype.setImageStyle = function(imageStyle) {
this.imageStyle_ = imageStyle;
goog.asserts.assert(!goog.isNull(imageStyle));
goog.asserts.assert(!goog.isNull(imageStyle.anchor));
goog.asserts.assert(!goog.isNull(imageStyle.image));
this.anchor_ = imageStyle.anchor;
this.image_ = imageStyle.image;
this.snapToPixel_ = imageStyle.snapToPixel;
};