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Air-Quality-Web
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Flip text to the other side of the guage

This commit is contained in:
Starbeamrainbowlabs 2019-05-09 21:38:42 +01:00
parent d0be3f3729
commit 439547b438
Signed by: sbrl
GPG Key ID: 1BE5172E637709C2
1 changed files with 9 additions and 5 deletions
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14
client_src/js/Guage.mjs
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@ -20,7 +20,7 @@ class Guage {
render() {
let guage_size = {
x: this.canvas.width * 0.1,
x: this.canvas.width * 0.6,
y: this.canvas.height * 0.05,
width: this.canvas.width * 0.3,
height: this.canvas.height * 0.9
@ -53,7 +53,10 @@ class Guage {
gradient.addColorStop(parseFloat(point), gradient_spec[point]);
this.context.fillStyle = gradient;
this.context.fillRect(guage_size.x, guage_size.y, guage_size.width, guage_size.height);
this.context.fillRect(
guage_size.x, guage_size.y,
guage_size.width, guage_size.height
);
this.context.restore();
}
@ -69,15 +72,16 @@ class Guage {
for (let point in this.spec) {
let value = 1 - (parseFloat(point) / this.max);
let draw_x = guage_size.x + guage_size.width + 3;
let text_width = this.context.measureText(point).width;
let draw_x = guage_size.x - 5 - text_width;
let draw_y = guage_size.y + (value * guage_size.height);
// console.log(`Writing '${point}' to (${draw_x}, ${draw_y})`);
this.context.fillText(point, draw_x, draw_y);
this.context.beginPath();
this.context.moveTo(guage_size.x, draw_y);
this.context.lineTo(draw_x, draw_y);
this.context.moveTo(guage_size.x + guage_size.width, draw_y);
this.context.lineTo(draw_x + text_width, draw_y);
this.context.stroke();
}