You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
2.5 KiB
80 lines
2.5 KiB
'use strict';
|
|
|
|
import CircleImageBase from '../util/CircleImageBase'
|
|
|
|
class CircularImage extends CircleImageBase {
|
|
constructor (options, body, labelModule, imageObj, imageObjAlt) {
|
|
super(options, body, labelModule);
|
|
|
|
this.setImages(imageObj, imageObjAlt);
|
|
}
|
|
|
|
resize(ctx, selected = this.selected, hover = this.hover) {
|
|
var imageAbsent = (this.imageObj.src === undefined) ||
|
|
(this.imageObj.width === undefined) ||
|
|
(this.imageObj.height === undefined);
|
|
|
|
if (imageAbsent) {
|
|
var diameter = this.options.size * 2;
|
|
this.width = diameter;
|
|
this.height = diameter;
|
|
this.radius = 0.5*this.width;
|
|
return;
|
|
}
|
|
|
|
// At this point, an image is present, i.e. this.imageObj is valid.
|
|
if (this.needsRefresh(selected, hover)) {
|
|
this._resizeImage();
|
|
}
|
|
}
|
|
|
|
draw(ctx, x, y, selected, hover, values) {
|
|
// switch images depending on 'selected' if imageObjAlt exists
|
|
if (this.imageObjAlt) {
|
|
this.switchImages(selected);
|
|
}
|
|
|
|
this.selected = selected;
|
|
|
|
this.resize(ctx, selected, hover);
|
|
this.left = x - this.width / 2;
|
|
this.top = y - this.height / 2;
|
|
|
|
// draw the background circle. IMPORTANT: the stroke in this method is used by the clip method below.
|
|
this._drawRawCircle(ctx, x, y, values);
|
|
|
|
// now we draw in the circle, we save so we can revert the clip operation after drawing.
|
|
ctx.save();
|
|
// clip is used to use the stroke in drawRawCircle as an area that we can draw in.
|
|
ctx.clip();
|
|
// draw the image
|
|
this._drawImageAtPosition(ctx, values);
|
|
// restore so we can again draw on the full canvas
|
|
ctx.restore();
|
|
|
|
this._drawImageLabel(ctx, x, y, selected, hover);
|
|
|
|
this.updateBoundingBox(x,y);
|
|
}
|
|
|
|
// TODO: compare with Circle.updateBoundingBox(), consolidate? More stuff is happening here
|
|
updateBoundingBox(x,y) {
|
|
this.boundingBox.top = y - this.options.size;
|
|
this.boundingBox.left = x - this.options.size;
|
|
this.boundingBox.right = x + this.options.size;
|
|
this.boundingBox.bottom = y + this.options.size;
|
|
|
|
// TODO: compare with Image.updateBoundingBox(), consolidate?
|
|
this.boundingBox.left = Math.min(this.boundingBox.left, this.labelModule.size.left);
|
|
this.boundingBox.right = Math.max(this.boundingBox.right, this.labelModule.size.left + this.labelModule.size.width);
|
|
this.boundingBox.bottom = Math.max(this.boundingBox.bottom, this.boundingBox.bottom + this.labelOffset);
|
|
}
|
|
|
|
|
|
distanceToBorder(ctx, angle) {
|
|
this.resize(ctx);
|
|
return this.width * 0.5;
|
|
}
|
|
}
|
|
|
|
export default CircularImage;
|