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authorOrangerot <purple@orangerot.dev>2024-12-08 02:59:45 +0100
committerOrangerot <purple@orangerot.dev>2024-12-08 02:59:45 +0100
commit9fdb7856ed4cd72235ba6642bbcc20055c05176c (patch)
treea8461d2372d9f68e5dd8399e330450b90a9d9840
parent4ec96e68d137614172c86d162adfa6f676b0eef9 (diff)
feat: apply image filters
-rw-r--r--index.html56
-rw-r--r--main.js56
2 files changed, 84 insertions, 28 deletions
diff --git a/index.html b/index.html
index a3ada32..048f3fb 100644
--- a/index.html
+++ b/index.html
@@ -60,17 +60,17 @@
<div class="control">
<input type="range"
id="brightness"
- class="slider is-fullwidth is-primary"
- min="0" max="100" value="50" step="1">
+ class="brightness slider is-fullwidth is-primary"
+ min="0" max="2" value="1" step="0.1">
</div>
</div>
<div class="field">
<label class="label">Saturation</label>
<div class="control">
<input type="range"
- id="saturation"
- class="slider is-fullwidth is-primary"
- min="0" max="100" value="50" step="1">
+ id="saturate"
+ class="saturate slider is-fullwidth is-primary"
+ min="0" max="2" value="1" step="0.1">
</div>
</div>
<div class="field">
@@ -78,8 +78,8 @@
<div class="control">
<input type="range"
id="contrast"
- class="slider is-fullwidth is-primary"
- min="0" max="100" value="50" step="1">
+ class="contrast slider is-fullwidth is-primary"
+ min="0" max="2" value="1" step="0.1">
</div>
</div>
@@ -89,6 +89,15 @@
<p class="menu-label">
Blur and Sharpen
</p>
+ <div class="field">
+ <label class="label">Blur</label>
+ <div class="control">
+ <input type="range"
+ id="blur"
+ class="blur slider is-fullwidth is-primary"
+ min="0" max="20" value="0" step="1">
+ </div>
+ </div>
</aside>
</div>
</div>
@@ -103,43 +112,52 @@
</button>
<p class="menu-label">
- Color Correction
+ Color Correction
</p>
<div class="field">
<label class="label">Brightness</label>
<div class="control">
<input type="range"
- id="slider0"
- class="slider is-fullwidth is-primary"
- min="0" max="100" value="50" step="1">
+ id="brightness"
+ class="brightness slider is-fullwidth is-primary"
+ min="0" max="2" value="1" step="0.1">
</div>
</div>
<div class="field">
<label class="label">Saturation</label>
<div class="control">
<input type="range"
- id="slider0"
- class="slider is-fullwidth is-primary"
- min="0" max="100" value="50" step="1">
+ id="saturate"
+ class="saturate slider is-fullwidth is-primary"
+ min="0" max="2" value="1" step="0.1">
</div>
</div>
<div class="field">
<label class="label">Contrast</label>
<div class="control">
<input type="range"
- id="slider0"
- class="slider is-fullwidth is-primary"
- min="0" max="100" value="50" step="1">
+ id="contrast"
+ class="contrast slider is-fullwidth is-primary"
+ min="0" max="2" value="1" step="0.1">
</div>
</div>
<p class="menu-label">
- Distortion
+ Distortion
</p>
<p class="menu-label">
- Blur and Sharpen
+ Blur and Sharpen
</p>
+ <div class="field">
+ <label class="label">Blur</label>
+ <div class="control">
+ <input type="range"
+ id="blur"
+ class="blur slider is-fullwidth is-primary"
+ min="0" max="20" value="0" step="1">
+ </div>
+ </div>
</div>
</body>
</html>
diff --git a/main.js b/main.js
index 6953ee5..d5580af 100644
--- a/main.js
+++ b/main.js
@@ -1,17 +1,37 @@
-let canvas, imports;
+let canvas;
+let ctx;
+let imports;
+let settings = {
+ brightness: {},
+ saturate: {},
+ contrast: {},
+ blur: {prefix: 'px'}
+};
+const img = new Image();
// wait for site to be parsed so element can be found
-document.addEventListener("DOMContentLoaded", function () {
+document.addEventListener("DOMContentLoaded", function() {
+ canvas = document.getElementById("myCanvas");
+ ctx = canvas.getContext("2d");
+ imports = document.getElementById("imports");
+
// bind listeners
document.getElementById("take-picture").addEventListener("click", take_picture);
document.getElementById("upload-image").addEventListener("change", upload_image)
-
+
document.getElementById("save").addEventListener("click", save_image)
document.getElementById("share").addEventListener("click", share_image)
- canvas = document.getElementById("myCanvas");
- imports = document.getElementById("imports");
+ for (let setting in settings) {
+ // make an array out of an iterable
+ const elements = [...document.getElementsByClassName(setting)];
+ settings[setting].elements = elements;
+ for (let element of elements) {
+ element.addEventListener("input", settings_apply);
+ }
+ }
+
})
function take_picture() {
@@ -20,18 +40,16 @@ function take_picture() {
}
-function upload_image(event) {
+function upload_image() {
canvas.classList.remove("is-hidden");
imports.classList.add("is-hidden");
console.log(this.files[0]);
- const img = new Image();
- const ctx = canvas.getContext("2d");
img.src = URL.createObjectURL(this.files[0]);
img.onload = function() {
canvas.width = img.naturalWidth;
canvas.height = img.naturalHeight;
- ctx.drawImage(img, 0, 0, canvas.width, canvas.height);
+ ctx.drawImage(img, 0, 0, canvas.width, canvas.height);
}
}
@@ -47,3 +65,23 @@ function save_image() {
function share_image() {
}
+
+function settings_apply(event) {
+ const changed_setting = event.target.id;
+ const new_value = event.target.value;
+
+ // update all inputs for that setting (mobile and desktop) to the new value
+ for (let element of settings[changed_setting].elements) {
+ if (element == event.target) continue;
+ element.value = new_value;
+ }
+
+ const filter = Object.entries(settings)
+ .map(([setting, {elements, prefix}]) => `${setting}(${elements[0].value}${prefix || ""})`)
+ .join(" ")
+
+ ctx.filter = filter
+ console.log(filter);
+
+ ctx.drawImage(img, 0, 0, canvas.width, canvas.height);
+}