Add width/height/mime getters (#1327)

Author: hipstersmoothie

packages/core/src/index.ts

@@ -155,6 +155,9 @@ export function createJimp<
     /** Formats that can be used with Jimp */
     formats: Format<any>[] = [];
 
+    /** The original MIME type of the image */
+    mime?: string;
+
     constructor(options: JimpConstructorOptions = emptyBitmap) {
       // Add the formats
       this.formats = formats;
@@ -327,6 +330,8 @@ export function createJimp<
         await format.decode(actualBuffer)
       ) as InstanceType<typeof CustomJimp> & ExtraMethodMap;
 
+      image.mime = mime.mime;
+
       attemptExifRotate(image, actualBuffer);
 
       return image;
@@ -362,6 +367,16 @@ export function createJimp<
       return "[object Jimp]";
     }
 
+    /** Get the width of the image */
+    get width() {
+      return this.bitmap.width;
+    }
+
+    /** Get the height of the image */
+    get height() {
+      return this.bitmap.height;
+    }
+
     /**
      * Converts the Jimp instance to an image buffer
      * @param mime The mime type to export to

packages/docs/src/content/docs/guides/migrate-to-v1.mdx

@@ -9,6 +9,14 @@ The goals of v1 were to:
 2. Make jimp's API more consistent and easier to use
 3. Many constants have been removed and are string value powered by TS
 
+## Importing
+
+`Jimp` no longer uses a default export. Instead it uses named exports.
+
+```js
+import { Jimp } from "jimp";
+```
+
 ## Positional Arguments to Options Objects
 
 In jimp v0 there were many ways to provide arguments to a method.
@@ -140,3 +148,10 @@ const resized = await image
 
 - `Jimp.AUTO` - This constant was only needed for positional arguments. It is no longer needed with the new API.
 - `Jimp.MIME_*` - These are now part of the TS api when encoding
+
+## Moved Functions
+
+- `Jimp.intToRGBA` was moved `import { intToRGBA } from "jimp";`
+- `image.getHeight()` was moved `image.height`
+- `image.getWidth()` was moved `image.width`
+- `image.getMIME()` was moved `image.mime`