Drop / ドロップ

画像ファイルをキャンバスにドラッグして表示します。

drag and drop file input image
DOM Interaction

View Source Code

/*
 * @name Drop
 * @arialabel Empty grey canvas that displays an image if it is dragged from the user’s computer to the grey canvas
 * @description Drag an image file onto the canvas to see it displayed.
 */

function setup() {
  // create canvas
  const c = createCanvas(710, 400);
  background(100);
  // Add an event for when a file is dropped onto the canvas
  c.drop(gotFile);
}

function draw() {
  fill(255);
  noStroke();
  textSize(24);
  textAlign(CENTER);
  text('Drag an image file onto the canvas.', width / 2, height / 2);
  noLoop();
}

function gotFile(file) {
  // If it's an image file
  if (file.type === 'image') {
    // Create an image DOM element but don't show it
    const img = createImg(file.data).hide();
    // Draw the image onto the canvas
    image(img, 0, 0, width, height);
  } else {
    console.log('Not an image file!');
  }
}

License

Source code is available on GitHub p5.js website legacy.

All examples are licensed under CC BY-NC-SA 4.0.