import { assert } from 'chai';
import { addStage, Konva, cloneAndCompareLayer, isBrowser } from './test-utils';
describe('Label', function () {
// ======================================================
it('add label', function () {
var stage = addStage();
var layer = new Konva.Layer();
var label = new Konva.Label({
x: 100,
y: 100,
draggable: true,
});
// add a tag to the label
label.add(
new Konva.Tag({
fill: '#bbb',
shadowColor: 'black',
shadowBlur: 10,
shadowOffset: { x: 10, y: 10 },
shadowOpacity: 0.2,
lineJoin: 'round',
pointerDirection: 'up',
pointerWidth: 20,
pointerHeight: 20,
cornerRadius: 5,
})
);
// add text to the label
label.add(
new Konva.Text({
text: '',
fontSize: 50,
//fontFamily: 'Calibri',
//fontStyle: 'normal',
lineHeight: 1.2,
//padding: 10,
fill: 'green',
})
);
layer.add(label);
stage.add(layer);
label.getText().fontSize(100);
label.getText().fontSize(50);
label.getText().text('Hello big world');
layer.draw();
assert.equal(label.getType(), 'Group');
assert.equal(label.getClassName(), 'Label');
// use relaxed trace because text can be a slightly different size in different browsers,
// resulting in slightly different tag dimensions
var trace = layer.getContext().getTrace(true);
assert.equal(
trace,
'clearRect();save();lineJoin;transform();shadowColor;shadowBlur;shadowOffsetX;shadowOffsetY;beginPath();moveTo();lineTo();lineTo();lineTo();lineTo();arc();lineTo();arc();lineTo();arc();lineTo();arc();closePath();fillStyle;fill();restore();save();transform();restore();clearRect();save();lineJoin;transform();shadowColor;shadowBlur;shadowOffsetX;shadowOffsetY;beginPath();moveTo();lineTo();lineTo();lineTo();lineTo();arc();lineTo();arc();lineTo();arc();lineTo();arc();closePath();fillStyle;fill();restore();save();transform();font;textBaseline;textAlign;translate();save();fillStyle;fillText();restore();restore();'
);
});
// ======================================================
it('create label from json', function () {
var stage = addStage();
var json =
'{"attrs":{"x":100,"y":100,"draggable":true},"className":"Label","children":[{"attrs":{"fill":"#bbb","shadowColor":"black","shadowBlur":10,"shadowOffsetX":10,"shadowOffsetY":10,"shadowOpacity":0.2,"lineJoin":"round","pointerDirection":"up","pointerWidth":20,"pointerHeight":20,"cornerRadius":5,"x":-151.5,"y":20,"width":303,"height":60},"className":"Tag"},{"attrs":{"text":"Hello big world","fontSize":50,"lineHeight":1.2,"fill":"green","width":"auto","height":"auto","x":-151.5,"y":20},"className":"Text"}]}';
var layer = new Konva.Layer();
var label = Konva.Node.create(json);
layer.add(label);
stage.add(layer);
var trace = layer.getContext().getTrace(false, true);
if (isBrowser) {
assert.equal(
trace,
'clearRect(0,0,578,200);save();lineJoin=round;transform(1,0,0,1,-64,120);shadowColor=rgba(0,0,0,0.2);shadowBlur=10;shadowOffsetX=10;shadowOffsetY=10;beginPath();moveTo(5,0);lineTo(153,0);lineTo(163,-20);lineTo(173,0);lineTo(322,0);arc(322,5,5,4,0,false);lineTo(327,55);arc(322,55,5,0,1,false);lineTo(5,60);arc(5,55,5,1,3,false);lineTo(0,5);arc(5,5,5,3,4,false);closePath();fillStyle=#bbb;fill();restore();save();transform(1,0,0,1,-64,120);font=normal normal 50px Arial;textBaseline=middle;textAlign=left;translate(0,0);save();fillStyle=green;fillText(Hello big world,0,30);restore();restore();'
);
} else {
assert.equal(
trace,
'clearRect(0,0,578,200);save();lineJoin=round;transform(1,0,0,1,-65,120);shadowColor=rgba(0,0,0,0.2);shadowBlur=10;shadowOffsetX=10;shadowOffsetY=10;beginPath();moveTo(5,0);lineTo(154,0);lineTo(164,-20);lineTo(174,0);lineTo(324,0);arc(324,5,5,4,0,false);lineTo(329,55);arc(324,55,5,0,1,false);lineTo(5,60);arc(5,55,5,1,3,false);lineTo(0,5);arc(5,5,5,3,4,false);closePath();fillStyle=#bbb;fill();restore();save();transform(1,0,0,1,-65,120);font=normal normal 50px Arial;textBaseline=middle;textAlign=left;translate(0,0);save();fillStyle=green;fillText(Hello big world,0,30);restore();restore();'
);
}
});
it('find label class', function () {
var stage = addStage();
var layer = new Konva.Layer();
var label = new Konva.Label({
x: 100,
y: 100,
});
// add a tag to the label
label.add(
new Konva.Tag({
fill: '#bbb',
})
);
// add text to the label
label.add(
new Konva.Text({
text: 'Test Label',
fill: 'green',
})
);
layer.add(label);
stage.add(layer);
assert.equal(stage.find('Label')[0], label);
});
// caching doesn't give exactly the same result. WHY?
it('cache label', function () {
var stage = addStage();
var layer = new Konva.Layer();
// tooltip
var tooltip = new Konva.Label({
x: 170,
y: 75,
opacity: 0.75,
});
tooltip.add(
new Konva.Tag({
fill: 'black',
pointerDirection: 'down',
pointerWidth: 10,
pointerHeight: 10,
lineJoin: 'round',
shadowColor: 'black',
shadowBlur: 10,
shadowOffsetX: 10,
shadowOpacity: 0.5,
})
);
tooltip.add(
new Konva.Text({
text: 'Tooltip pointing down',
fontFamily: 'Calibri',
fontSize: 18,
padding: 5,
fill: 'white',
})
);
var tooltipUp = new Konva.Label({
x: 170,
y: 75,
opacity: 0.75,
});
tooltipUp.add(
new Konva.Tag({
fill: 'black',
pointerDirection: 'up',
pointerWidth: 10,
pointerHeight: 10,
lineJoin: 'round',
shadowColor: 'black',
shadowBlur: 10,
shadowOffsetX: 10,
shadowOpacity: 0.5,
})
);
tooltipUp.add(
new Konva.Text({
text: 'Tooltip pointing up',
fontFamily: 'Calibri',
fontSize: 18,
padding: 5,
fill: 'white',
})
);
// label with left pointer
var labelLeft = new Konva.Label({
x: 20,
y: 130,
opacity: 0.75,
});
labelLeft.add(
new Konva.Tag({
fill: 'green',
pointerDirection: 'left',
pointerWidth: 30,
pointerHeight: 28,
lineJoin: 'round',
})
);
labelLeft.add(
new Konva.Text({
text: 'Label pointing left',
fontFamily: 'Calibri',
fontSize: 18,
padding: 5,
fill: 'white',
})
);
// label with left pointer
var labelRight = new Konva.Label({
x: 160,
y: 170,
offsetX: 20,
opacity: 0.75,
});
labelRight.add(
new Konva.Tag({
fill: 'green',
pointerDirection: 'right',
pointerWidth: 20,
pointerHeight: 28,
lineJoin: 'round',
})
);
labelRight.add(
new Konva.Text({
text: 'Label right',
fontFamily: 'Calibri',
fontSize: 18,
padding: 5,
fill: 'white',
})
);
// simple label
var simpleLabel = new Konva.Label({
x: 180,
y: 150,
opacity: 0.75,
});
simpleLabel.add(
new Konva.Tag({
fill: 'yellow',
})
);
simpleLabel.add(
new Konva.Text({
text: 'Simple label',
fontFamily: 'Calibri',
fontSize: 18,
padding: 5,
fill: 'black',
})
);
// add the labels to layer
layer.add(tooltip, tooltipUp, labelLeft, labelRight, simpleLabel);
layer.children.forEach((child) => child.cache());
stage.add(layer);
cloneAndCompareLayer(layer, 250, 100);
});
it('tag should list text size changes', function () {
var stage = addStage();
var layer = new Konva.Layer();
stage.add(layer);
var label = new Konva.Label();
var tag = new Konva.Tag({
stroke: 'black',
});
label.add(tag);
var text = new Konva.Text({
text: 'hello hello hello hello hello hello hello hello',
});
label.add(text);
layer.add(label);
layer.draw();
text.width(200);
layer.draw();
assert.equal(tag.width(), text.width());
text.height(200);
assert.equal(tag.height(), text.height());
});
it('tag cornerRadius', function () {
var stage = addStage();
var layer = new Konva.Layer();
var tag = new Konva.Tag({
x: 50,
y: 50,
width: 100,
height: 100,
fill: 'black',
cornerRadius: [0, 10, 20, 30],
});
layer.add(tag);
stage.add(layer);
layer.draw();
assert.equal(tag.cornerRadius()[0], 0);
assert.equal(tag.cornerRadius()[1], 10);
assert.equal(tag.cornerRadius()[2], 20);
assert.equal(tag.cornerRadius()[3], 30);
var trace = layer.getContext().getTrace();
assert.equal(
trace,
'clearRect(0,0,578,200);save();transform(1,0,0,1,50,50);beginPath();moveTo(0,0);lineTo(90,0);arc(90,10,10,4.712,0,false);lineTo(100,80);arc(80,80,20,0,1.571,false);lineTo(30,100);arc(30,70,30,1.571,3.142,false);lineTo(0,0);arc(0,0,0,3.142,4.712,false);closePath();fillStyle=black;fill();restore();clearRect(0,0,578,200);save();transform(1,0,0,1,50,50);beginPath();moveTo(0,0);lineTo(90,0);arc(90,10,10,4.712,0,false);lineTo(100,80);arc(80,80,20,0,1.571,false);lineTo(30,100);arc(30,70,30,1.571,3.142,false);lineTo(0,0);arc(0,0,0,3.142,4.712,false);closePath();fillStyle=black;fill();restore();'
);
});
});