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@ -2,6 +2,7 @@
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//
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// SPDX-License-Identifier: MIT
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import polylabel from 'polylabel';
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import * as SVG from 'svg.js';
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import 'svg.draggable.js';
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@ -683,11 +684,13 @@ export class CanvasViewImpl implements CanvasView, Listener {
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for (const state of deleted) {
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if (state.clientID in this.svgTexts) {
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this.svgTexts[state.clientID].remove();
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delete this.svgTexts[state.clientID];
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}
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this.svgShapes[state.clientID].off('click.canvas');
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this.svgShapes[state.clientID].remove();
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delete this.drawnStates[state.clientID];
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delete this.svgShapes[state.clientID];
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}
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this.addObjects(created);
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@ -1175,7 +1178,6 @@ export class CanvasViewImpl implements CanvasView, Listener {
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for (const i in this.drawnStates) {
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if (!(i in this.svgTexts)) {
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this.svgTexts[i] = this.addText(this.drawnStates[i]);
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this.updateTextPosition(this.svgTexts[i], this.svgShapes[i]);
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}
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}
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} else if (configuration.displayAllText === false && this.configuration.displayAllText) {
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@ -1187,15 +1189,25 @@ export class CanvasViewImpl implements CanvasView, Listener {
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}
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}
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if ('smoothImage' in configuration) {
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if (configuration.smoothImage) {
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this.background.classList.remove('cvat_canvas_pixelized');
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} else {
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this.background.classList.add('cvat_canvas_pixelized');
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}
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const updateTextPosition = configuration.displayAllText !== this.configuration.displayAllText ||
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configuration.textFontSize !== this.configuration.textFontSize ||
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configuration.textPosition !== this.configuration.textPosition;
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if (configuration.smoothImage === true) {
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this.background.classList.remove('cvat_canvas_pixelized');
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} else if (configuration.smoothImage === false) {
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this.background.classList.add('cvat_canvas_pixelized');
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}
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this.configuration = configuration;
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if (updateTextPosition) {
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for (const i in this.drawnStates) {
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if (i in this.svgTexts) {
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this.updateTextPosition(this.svgTexts[i], this.svgShapes[i]);
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}
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}
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}
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this.activate(activeElement);
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this.editHandler.configurate(this.configuration);
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this.drawHandler.configurate(this.configuration);
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@ -2059,45 +2071,82 @@ export class CanvasViewImpl implements CanvasView, Listener {
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// Update text position after corresponding box has been moved, resized, etc.
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private updateTextPosition(text: SVG.Text, shape: SVG.Shape): void {
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if (text.node.style.display === 'none') return; // wrong transformation matrix
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const { rotation } = shape.transform();
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let box = (shape.node as any).getBBox();
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// Translate the whole box to the client coordinate system
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const [x1, y1, x2, y2]: number[] = translateFromSVG(this.content, [
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box.x,
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box.y,
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box.x + box.width,
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box.y + box.height,
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]);
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const textFontSize = this.configuration.textFontSize || consts.DEFAULT_SHAPE_TEXT_SIZE;
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const textPosition = this.configuration.textPosition || 'auto';
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box = {
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x: Math.min(x1, x2),
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y: Math.min(y1, y2),
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width: Math.max(x1, x2) - Math.min(x1, x2),
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height: Math.max(y1, y2) - Math.min(y1, y2),
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};
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text.untransform();
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text.style({ 'font-size': textFontSize });
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const { rotation } = shape.transform();
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// Find the best place for a text
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let [clientX, clientY]: number[] = [box.x + box.width, box.y];
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if (
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clientX + ((text.node as any) as SVGTextElement)
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.getBBox().width + consts.TEXT_MARGIN > this.canvas.offsetWidth
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) {
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[clientX, clientY] = [box.x, box.y];
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let [clientX, clientY, clientCX, clientCY]: number[] = [0, 0, 0, 0];
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if (textPosition === 'center') {
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let cx = 0;
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let cy = 0;
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if (shape.type === 'rect') {
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// for rectangle finding a center is simple
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cx = +shape.attr('x') + +shape.attr('width') / 2;
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cy = +shape.attr('y') + +shape.attr('height') / 2;
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} else {
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// for polyshapes we use special algorithm
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const points = parsePoints(pointsToNumberArray(shape.attr('points')));
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[cx, cy] = polylabel([points.map((point) => [point.x, point.y])]);
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}
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[clientX, clientY] = translateFromSVG(this.content, [cx, cy]);
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// center is exactly clientX, clientY
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clientCX = clientX;
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clientCY = clientY;
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} else {
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let box = (shape.node as any).getBBox();
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// Translate the whole box to the client coordinate system
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const [x1, y1, x2, y2]: number[] = translateFromSVG(this.content, [
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box.x,
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box.y,
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box.x + box.width,
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box.y + box.height,
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]);
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clientCX = x1 + (x2 - x1) / 2;
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clientCY = y1 + (y2 - y1) / 2;
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box = {
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x: Math.min(x1, x2),
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y: Math.min(y1, y2),
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width: Math.max(x1, x2) - Math.min(x1, x2),
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height: Math.max(y1, y2) - Math.min(y1, y2),
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};
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// first try to put to the top right corner
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[clientX, clientY] = [box.x + box.width, box.y];
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if (
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clientX + ((text.node as any) as SVGTextElement)
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.getBBox().width + consts.TEXT_MARGIN > this.canvas.offsetWidth
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) {
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// if out of visible area, try to put text to top left corner
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[clientX, clientY] = [box.x, box.y];
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}
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}
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// Translate back to text SVG
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const [x, y, cx, cy]: number[] = translateToSVG(this.text, [
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// Translate found coordinates to text SVG
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const [x, y, rotX, rotY]: number[] = translateToSVG(this.text, [
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clientX + consts.TEXT_MARGIN,
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clientY + consts.TEXT_MARGIN,
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x1 + (x2 - x1) / 2,
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y1 + (y2 - y1) / 2,
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clientCX,
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clientCY,
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]);
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const textBBox = ((text.node as any) as SVGTextElement).getBBox();
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// Finally draw a text
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text.move(x, y);
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if (textPosition === 'center') {
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text.move(x - textBBox.width / 2, y - textBBox.height / 2);
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} else {
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text.move(x, y);
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}
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if (rotation) {
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text.rotate(rotation, cx, cy);
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text.rotate(rotation, rotX, rotY);
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}
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for (const tspan of (text.lines() as any).members) {
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@ -2107,6 +2156,7 @@ export class CanvasViewImpl implements CanvasView, Listener {
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private addText(state: any): SVG.Text {
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const { undefinedAttrValue } = this.configuration;
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const textFontSize = this.configuration.textFontSize || 12;
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const {
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label, clientID, attributes, source, descriptions,
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} = state;
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@ -2117,7 +2167,9 @@ export class CanvasViewImpl implements CanvasView, Listener {
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return this.adoptedText
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.text((block): void => {
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block.tspan(`${label.name} ${clientID} (${source})`).style('text-transform', 'uppercase');
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block.tspan(`${label.name} ${clientID} (${source})`).style({
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'text-transform': 'uppercase',
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});
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for (const desc of descriptions) {
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block
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.tspan(`${desc}`)
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@ -2140,6 +2192,7 @@ export class CanvasViewImpl implements CanvasView, Listener {
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}
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})
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.move(0, 0)
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.style({ 'font-size': textFontSize })
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.addClass('cvat_canvas_text');
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}
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Boris Sekachev
4 years ago
committed by
GitHub