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Allow new Raster(size) constructor

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This commit is contained in:
Jürg Lehni 2019-04-11 19:37:49 +02:00
parent fcfebdc43b
commit e436d44f14
1 changed files with 26 additions and 8 deletions
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34
src/item/Raster.js
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@ -81,22 +81,40 @@ var Raster = Item.extend(/** @lends Raster# */{
* raster.scale(0.5);
* raster.rotate(10);
*/
initialize: function Raster(object, position) {
initialize: function Raster(source, position) {
// Support two forms of item initialization: Passing one object literal
// describing all the different properties to be set, or an image
// (object) and a point where it should be placed (point).
// If _initialize can set properties through object literal, we're done.
// Otherwise we need to check the type of object:
if (!this._initialize(object,
position !== undefined && Point.read(arguments, 1))) {
// object can be an image, canvas, URL or DOM-ID:
var image = typeof object === 'string'
? document.getElementById(object) : object;
// source can be an image, canvas, source URL or DOM-ID:
var image,
type = typeof source,
object = type === 'string'
? document.getElementById(source)
: type === 'object'
? source
: null;
if (object && object !== Item.NO_INSERT) {
// #setImage() handles both canvas and image types.
if (object.getContent || object.naturalHeight != null) {
image = object;
} else if (object) {
// See if the arguments describe the raster size:
var size = Size.read(arguments);
if (!size.isZero()) {
image = CanvasProvider.getCanvas(size);
}
}
}
if (!this._initialize(source,
position !== undefined && Point.read(arguments))) {
if (image) {
// #setImage() handles both canvas and image types.
this.setImage(image);
} else {
this.setSource(object);
this.setSource(source);
}
}
if (!this._size) {