From 288970d475c638f0cae96760ca30e1b41ae8e6cc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Leonardo=20Mur=C3=A7a?= <leo@leomurca.xyz>
Date: Wed, 30 Nov 2022 10:36:33 -0300
Subject: [PATCH] Include support for pec file format

---
 src/file-renderer/index.js |  3 +++
 src/format-readers/pec.js  | 13 +++++++++++++
 src/lib/FileViewer.svelte  |  2 +-
 3 files changed, 17 insertions(+), 1 deletion(-)
 create mode 100644 src/format-readers/pec.js

diff --git a/src/file-renderer/index.js b/src/file-renderer/index.js
index 39ad778..048ab76 100644
--- a/src/file-renderer/index.js
+++ b/src/file-renderer/index.js
@@ -2,6 +2,7 @@ import { jDataView } from "./jdataview";
 import { pesRead } from "../format-readers/pes";
 import { dstRead } from "../format-readers/dst";
 import { Pattern } from "./pattern";
+import { pecRead } from "../format-readers/pec";
 
 String.prototype.endsWith = function (suffix) {
   return this.indexOf(suffix, this.length - suffix.length) !== -1;
@@ -15,6 +16,8 @@ function displayFileText(filename, evt, canvas) {
     pesRead(view, pattern);
   } else if (filename.endsWith("dst")) {
     dstRead(view, pattern);
+  } else if (filename.endsWith("pec")) {
+    pecRead(view, pattern);
   }
   pattern.moveToPositive();
   pattern.drawShape(canvas);
diff --git a/src/format-readers/pec.js b/src/format-readers/pec.js
new file mode 100644
index 0000000..402e613
--- /dev/null
+++ b/src/format-readers/pec.js
@@ -0,0 +1,13 @@
+import { pecColors, pecReadStitches } from "./pes";
+
+export function pecRead(file, pattern) {
+  let colorChanges, i;
+  file.seek(0x38);
+  colorChanges = file.getUint8();
+  for (i = 0; i <= colorChanges; i++) {
+    pattern.addColor(pecColors[file.getUint8() % 65]);
+  }
+  file.seek(0x21c);
+  pecReadStitches(file, pattern);
+  return true;
+}
diff --git a/src/lib/FileViewer.svelte b/src/lib/FileViewer.svelte
index 31050d4..08a1148 100644
--- a/src/lib/FileViewer.svelte
+++ b/src/lib/FileViewer.svelte
@@ -9,7 +9,7 @@
   let rejectedFiles;
   let areAcceptedFilesRendered = false;
   const fileRequirements = {
-    supportedFormats: [".pes", ".dst"],
+    supportedFormats: [".pes", ".dst", ".pec"],
     maxSize: 700000,
   };