🐛 Fix problem with borders on shape export

CHANGES.md

@@ -20,6 +20,7 @@
 - Prevent adding numeric suffix to layer names when not needed [Taiga #1929](https://tree.taiga.io/project/penpot/us/1929).
 - Prevent deleting or moving the drafts project [Taiga #1935](https://tree.taiga.io/project/penpot/issue/1935).
 - Fix problem with zoom and selection [Taiga #1919](https://tree.taiga.io/project/penpot/issue/1919)
+- Fix problem with borders on shape export [#1092](https://github.com/penpot/penpot/issues/1092)
 
 ### :arrow_up: Deps updates
 ### :boom: Breaking changes

frontend/src/app/main/ui/render.cljs

@@ -55,7 +55,12 @@
         width    (* width zoom)
         height   (* height zoom)
 
-        vbox     (str/join " " [x y width height])
+        padding (* (filters/calculate-padding object) zoom)
+
+        vbox     (str/join " " [(- x padding)
+                                (- y padding)
+                                (+ width padding padding)
+                                (+ height padding padding)])
 
         frame-wrapper
         (mf/use-memo
@@ -81,8 +86,8 @@
     [:& (mf/provider embed/context) {:value true}
      [:svg {:id "screenshot"
             :view-box vbox
-            :width width
-            :height height
+            :width (+ width padding padding)
+            :height (+ height padding padding)
             :version "1.1"
             :xmlns "http://www.w3.org/2000/svg"
             :xmlnsXlink "http://www.w3.org/1999/xlink"

frontend/src/app/main/ui/shapes/filters.cljs

@@ -201,6 +201,19 @@
           :width (- x2 x1)
           :height (- y2 y1)})))))
 
+(defn calculate-padding [shape]
+  (let [{:keys [stroke-style stroke-alignment stroke-width]} shape]
+    (cond
+      (and (not= stroke-style :none)
+           (= stroke-alignment :outer))
+      stroke-width
+
+      (and (not= stroke-style :none)
+           (= stroke-alignment :center))
+      (mth/ceil (/ stroke-width 2))
+
+      :else 0)))
+
 (mf/defc filters
   [{:keys [filter-id shape]}]
 
@@ -209,15 +222,17 @@
         ;; Adds the previous filter as `filter-in` parameter
         filters (map #(assoc %1 :filter-in %2) filters (cons nil (map :id filters)))
 
-        bounds (get-filters-bounds shape filters (or (-> shape :blur :value) 0))]
+        bounds (get-filters-bounds shape filters (or (-> shape :blur :value) 0))
+
+        padding (calculate-padding shape)]
 
     [:*
      (when (> (count filters) 2)
        [:filter {:id filter-id
-                 :x (:x bounds)
-                 :y (:y bounds)
-                 :width (:width bounds)
-                 :height (:height bounds)
+                 :x (- (:x bounds) padding)
+                 :y (- (:y bounds) padding)
+                 :width (+ (:width bounds) (* 2 padding))
+                 :height (+ (:height bounds) (* 2 padding))
                  :filterUnits "userSpaceOnUse"
                  :color-interpolation-filters "sRGB"}