✨ Automatic placement of uploaded image

common/uxbox/common/geom/shapes.cljc

@@ -191,6 +191,18 @@
             (assoc :height value)
             (assoc :width (* value proportion)))))))
 
+(defn resize
+  [shape width height]
+  (us/assert map? shape)
+  (us/assert number? width)
+  (us/assert number? height)
+  (-> shape
+      (assoc :width width
+             :height height
+             :x2 (+ (:x1 shape) width)
+             :y2 (+ (:y1 shape) height))
+      (update :selrect (nilf #(resize % width height)))))
+
 ;; --- Setup (Initialize)
 
 (declare setup-rect)

frontend/src/uxbox/main/ui/workspace/drawarea.cljs

@@ -74,6 +74,62 @@
     :name "Text"
     :content nil}])
 
+(defn- make-minimal-shape
+  [type]
+  (let [tool (seek #(= type (:type %)) minimal-shapes)]
+    (assert tool "unexpected drawing tool")
+    (assoc tool
+           :id (uuid/next)
+           :x 0
+           :y 0
+           :width 1
+           :height 1
+           :selrect {:x 0
+                     :x1 0
+                     :x2 0
+                     :y 0
+                     :y1 0
+                     :y2 0
+                     :width 1
+                     :height 1}
+           :points []
+           :segments [])))
+
+
+(defn- calculate-centered-box
+  [state aspect-ratio]
+  (if (>= aspect-ratio 1)
+    (let [vbox (get-in state [:workspace-local :vbox])
+          width (/ (:width vbox) 2)
+          height (/ width aspect-ratio)
+
+          x (+ (:x vbox) (/ width 2))
+          y (+ (:y vbox) (/ (- (:height vbox) height) 2))]
+
+      [width height x y])
+
+    (let [vbox (get-in state [:workspace-local :vbox])
+          height (/ (:height vbox) 2)
+          width (* height aspect-ratio)
+
+          y (+ (:y vbox) (/ height 2))
+          x (+ (:x vbox) (/ (- (:width vbox) width) 2))]
+
+      [width height x y])))
+
+(defn direct-add-shape
+  [type data aspect-ratio]
+  (ptk/reify ::direct-add-shape
+    ptk/WatchEvent
+    (watch [_ state stream]
+      (let [[width height x y] (calculate-centered-box state aspect-ratio)
+            shape (-> (make-minimal-shape type)
+                      (merge data)
+                      (geom/resize width height)
+                      (geom/absolute-move (gpt/point x y)))]
+
+        (rx/of (dw/add-shape shape))))))
+
 (defn start-drawing
   [type]
   {:pre [(keyword? type)]}
@@ -94,12 +150,6 @@
              (rx/of (handle-drawing type)))
             (rx/empty)))))))
 
-(defn- make-minimal-shape
-  [type]
-  (let [tool (seek #(= type (:type %)) minimal-shapes)]
-    (assert tool "unexpected drawing tool")
-    (assoc tool :id (uuid/next))))
-
 (defn handle-drawing
   [type]
   (ptk/reify ::handle-drawing

frontend/src/uxbox/main/ui/workspace/left_toolbar.cljs

@@ -15,6 +15,7 @@
    [uxbox.main.data.workspace :as dw]
    [uxbox.main.store :as st]
    [uxbox.main.ui.components.file-uploader :refer [file-uploader]]
+   [uxbox.main.ui.workspace.drawarea :refer [direct-add-shape]]
    [uxbox.util.dom :as dom]
    [uxbox.util.i18n :as i18n :refer [t]]
    [uxbox.main.ui.icons :as i]))
@@ -39,8 +40,9 @@
                                   :uri (:uri image)
                                   :thumb-width (:thumb-width image)
                                   :thumb-height (:thumb-height image)
-                                  :thumb-uri (:thumb-uri image)}}]
+                                  :thumb-uri (:thumb-uri image)}}
-            (st/emit! (dw/select-for-drawing :image shape))))
+                aspect-ratio (/ (:width image) (:height image))]
+            (st/emit! (direct-add-shape :image shape aspect-ratio))))
 
         on-file-selected
         (fn [file]