doScale API for #155

Author: ivictbor

README.md

@@ -339,8 +339,31 @@ API
 
 **.hide()** - hide instance
 
+
 **.save()** - call save (same save as on buttons bar). Can be used if save button is hidden (`hiddenTools: ['save']`)
 
+**.doScale({ width, height, scale })** - scale the image and resize area.
+
+Scale to match the width and scale height proportinally (e.g. 50x32 will become 100->64):
+
+```
+.doScale({width: 100})
+```
+
+Scale to fill width and height (e.g. 50x32 will become 11->15):
+
+```
+.doScale({width: 11, height: 15})
+```
+
+Scale x2  (e.g. 11x12 will become 22->24):
+
+```
+.doScale({ scale: 2 })
+```
+
+
+
 Example:
 
 ```js

js/main.js

@@ -1210,6 +1210,24 @@ class PainterroProc {
     return this;
   }
 
+  doScale({width, height, scale}) {
+    if (scale) {
+      if (width || height) {
+        throw new Error(`You can't pass width or height and scale at the same time`)
+      }
+      this.resizer.newW = Math.round(this.size.w * scale);
+      this.resizer.newH = Math.round(this.size.h * scale);
+
+    } else {
+      if (scale) {
+        throw new Error(`You can't pass width or height and scale at the same time`)
+      }
+      this.resizer.newW = width || Math.round(this.size.w * (height / this.size.h));
+      this.resizer.newH = height || Math.round(this.size.h * (width / this.size.w));
+    }
+    this.resizer.scaleButton.onclick();
+  }
+
   openFile(f) {
     if (!f) {
       return;

js/selecter.js

@@ -219,12 +219,9 @@ ${Math.round(pxData[i][j][3] / s)})`;
   }
 
   handleKeyDown(evt) {
-    console.log(1)
     if (this.main.inserter.handleKeyDown(evt)) {
       return true;
     }
-    console.log(2)
-
     if (this.shown && this.imagePlaced) {
       if (evt.keyCode === KEYS.enter) {
         this.finishPlacing();