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.
116 lines
3.4 KiB
116 lines
3.4 KiB
import NodeBase from '../util/NodeBase'
|
|
|
|
class CircleImageBase extends NodeBase {
|
|
constructor(options, body, labelModule) {
|
|
super(options, body, labelModule);
|
|
this.labelOffset = 0;
|
|
this.imageLoaded = false;
|
|
}
|
|
|
|
/**
|
|
* This function resizes the image by the options size when the image has not yet loaded. If the image has loaded, we
|
|
* force the update of the size again.
|
|
*
|
|
* @private
|
|
*/
|
|
_resizeImage() {
|
|
let force = false;
|
|
if (!this.imageObj.width || !this.imageObj.height) { // undefined or 0
|
|
this.imageLoaded = false;
|
|
}
|
|
else if (this.imageLoaded === false) {
|
|
this.imageLoaded = true;
|
|
force = true;
|
|
}
|
|
|
|
if (!this.width || !this.height || force === true) { // undefined or 0
|
|
var width, height, ratio;
|
|
if (this.imageObj.width && this.imageObj.height) { // not undefined or 0
|
|
width = 0;
|
|
height = 0;
|
|
}
|
|
if (this.imageObj.width > this.imageObj.height) {
|
|
ratio = this.imageObj.width / this.imageObj.height;
|
|
width = this.options.size * 2 * ratio || this.imageObj.width;
|
|
height = this.options.size * 2 || this.imageObj.height;
|
|
}
|
|
else {
|
|
if (this.imageObj.width && this.imageObj.height) { // not undefined or 0
|
|
ratio = this.imageObj.height / this.imageObj.width;
|
|
}
|
|
else {
|
|
ratio = 1;
|
|
}
|
|
width = this.options.size * 2 || this.imageObj.width;
|
|
height = this.options.size * 2 * ratio || this.imageObj.height;
|
|
}
|
|
this.width = width;
|
|
this.height = height;
|
|
this.radius = 0.5 * this.width;
|
|
}
|
|
|
|
}
|
|
|
|
_drawRawCircle(ctx, x, y, selected, hover, size) {
|
|
var borderWidth = this.options.borderWidth;
|
|
var selectionLineWidth = this.options.borderWidthSelected || 2 * this.options.borderWidth;
|
|
|
|
ctx.strokeStyle = selected ? this.options.color.highlight.border : hover ? this.options.color.hover.border : this.options.color.border;
|
|
|
|
ctx.lineWidth = (selected ? selectionLineWidth : borderWidth);
|
|
ctx.lineWidth *= this.networkScaleInv;
|
|
ctx.lineWidth = Math.min(this.width, ctx.lineWidth);
|
|
if (this.options.dashes) {
|
|
ctx.setLineDash(this.options.dashes)
|
|
} else {
|
|
ctx.setLineDash([0]);
|
|
}
|
|
ctx.fillStyle = selected ? this.options.color.highlight.background : hover ? this.options.color.hover.background : this.options.color.background;
|
|
ctx.circle(x, y, size);
|
|
|
|
// draw shadow if enabled
|
|
this.enableShadow(ctx);
|
|
ctx.fill();
|
|
|
|
// disable shadows for other elements.
|
|
this.disableShadow(ctx);
|
|
|
|
ctx.stroke();
|
|
}
|
|
|
|
_drawImageAtPosition(ctx) {
|
|
if (this.imageObj.width != 0) {
|
|
// draw the image
|
|
ctx.globalAlpha = 1.0;
|
|
|
|
// draw shadow if enabled
|
|
this.enableShadow(ctx);
|
|
ctx.drawImage(this.imageObj, this.left, this.top, this.width, this.height);
|
|
|
|
// disable shadows for other elements.
|
|
this.disableShadow(ctx);
|
|
}
|
|
}
|
|
|
|
_drawImageLabel(ctx, x, y, selected) {
|
|
var yLabel;
|
|
var offset = 0;
|
|
|
|
if (this.height !== undefined) {
|
|
offset = this.height * 0.5;
|
|
var labelDimensions = this.labelModule.getTextSize(ctx);
|
|
if (labelDimensions.lineCount >= 1) {
|
|
offset += labelDimensions.height / 2;
|
|
}
|
|
}
|
|
|
|
yLabel = y + offset;
|
|
|
|
if (this.options.label) {
|
|
this.labelOffset = offset;
|
|
}
|
|
this.labelModule.draw(ctx, x, yLabel, selected, 'hanging');
|
|
}
|
|
}
|
|
|
|
export default CircleImageBase;
|