🐛 Fix several problems with layouts and texts

common/src/app/common/types/text.cljc

@@ -407,17 +407,19 @@
 (defn change-text
   "Changes the content of the text shape to use the text as argument. Will use the styles of the
    first paragraph and text that is present in the shape (and override the rest)"
-  [content text]
+  [content text & {:as styles}]
   (let [root-styles (select-keys content root-attrs)
 
         paragraph-style
         (merge
          default-text-attrs
+         styles
          (select-keys (->> content (node-seq is-paragraph-node?) first) text-all-attrs))
 
         text-style
         (merge
          default-text-attrs
+         styles
          (select-keys (->> content (node-seq is-text-node?) first) text-all-attrs))
 
         paragraph-texts

frontend/src/app/main/data/workspace/shape_layout.cljs

@@ -104,7 +104,7 @@
     (watch [_ state _]
       (let [page-id (or page-id (:current-page-id state))
             objects (dsh/lookup-page-objects state page-id)
-            ids (->> ids (filter #(contains? objects %)))]
+            ids (->> ids (remove uuid/zero?) (filter #(contains? objects %)))]
         (if (d/not-empty? ids)
           (let [modif-tree (dwm/create-modif-tree ids (ctm/reflow-modifiers))]
             (if (features/active-feature? state "render-wasm/v1")

frontend/src/app/main/data/workspace/texts.cljs

@@ -776,11 +776,7 @@
              (rx/of (v2-update-text-editor-styles id attrs)))
 
            (when (features/active-feature? state "render-wasm/v1")
-             ;; This delay is to give time for the font to be correctly rendered
+             (rx/of (dwwt/resize-wasm-text-debounce id)))))))
-             ;; in wasm.
-             (cond->> (rx/of (dwwt/resize-wasm-text id))
-               (contains? attrs :font-id)
-               (rx/delay 200)))))))
 
     ptk/EffectEvent
     (effect [_ state _]

frontend/src/app/main/data/workspace/wasm_text.cljs

@@ -62,6 +62,65 @@
           (rx/of (dwm/apply-wasm-modifiers (resize-wasm-text-modifiers shape)))
           (rx/empty))))))
 
+(defn resize-wasm-text-debounce-commit
+  []
+  (ptk/reify ::resize-wasm-text
+    ptk/WatchEvent
+    (watch [_ state _]
+      (let [ids (get state ::resize-wasm-text-debounce-ids)
+            objects (dsh/lookup-page-objects state)
+
+            modifiers
+            (reduce
+             (fn [modifiers id]
+               (let [shape (get objects id)]
+                 (cond-> modifiers
+                   (and (some? shape)
+                        (cfh/text-shape? shape)
+                        (not= :fixed (:grow-type shape)))
+                   (merge (resize-wasm-text-modifiers shape)))))
+             {}
+             ids)]
+        (if (not (empty? modifiers))
+          (rx/of (dwm/apply-wasm-modifiers modifiers))
+          (rx/empty))))))
+
+;; This event will debounce the resize events so, if there are many, they
+;; are processed at the same time and not one-by-one. This will improve
+;; performance because it's better to make only one layout calculation instead
+;; of (potentialy) hundreds.
+(defn resize-wasm-text-debounce
+  [id]
+  (let [cur-event (js/Symbol)]
+    (ptk/reify ::resize-wasm-text-debounce
+      ptk/UpdateEvent
+      (update [_ state]
+        (-> state
+            (update ::resize-wasm-text-debounce-ids (fnil conj []) id)
+            (cond-> (nil? (::resize-wasm-text-debounce-event state))
+              (assoc ::resize-wasm-text-debounce-event cur-event))))
+
+      ptk/WatchEvent
+      (watch [_ state stream]
+        (if (= (::resize-wasm-text-debounce-event state) cur-event)
+          (let [stopper (->> stream (rx/filter (ptk/type? :app.main.data.workspace/finalize)))]
+            (rx/concat
+             (rx/merge
+              (->> stream
+                   (rx/filter (ptk/type? ::resize-wasm-text-debounce))
+                   (rx/debounce 20)
+                   (rx/take 1)
+                   (rx/delay 200)
+                   (rx/map #(resize-wasm-text-debounce-commit))
+                   (rx/take-until stopper))
+
+              (rx/of (resize-wasm-text-debounce id)))
+
+             (rx/of #(dissoc %
+                             ::resize-wasm-text-debounce-ids
+                             ::resize-wasm-text-debounce-event))))
+          (rx/empty))))))
+
 (defn resize-wasm-text-all
   "Resize all text shapes (auto-width/auto-height) from a collection of ids."
   [ids]

frontend/src/app/main/ui/workspace/viewport/utils.cljs

@@ -75,32 +75,31 @@
   [{:keys [points] :as shape} zoom grid-edition?]
   (let [leftmost  (->> points (reduce left?))
         topmost   (->> points (remove #{leftmost}) (reduce top?))
-        rightmost (->> points (remove #{leftmost topmost}) (reduce right?))
+        rightmost (->> points (remove #{leftmost topmost}) (reduce right?))]
+    (when (and (some? leftmost) (some? topmost) (some? rightmost))
+      (let [left-top (gpt/to-vec leftmost topmost)
+            left-top-angle (gpt/angle left-top)
 
-        left-top (gpt/to-vec leftmost topmost)
+            top-right (gpt/to-vec topmost rightmost)
-        left-top-angle (gpt/angle left-top)
+            top-right-angle (gpt/angle top-right)
 
-        top-right (gpt/to-vec topmost rightmost)
+            ;; Choose the position that creates the less angle between left-side and top-side
-        top-right-angle (gpt/angle top-right)
+            [label-pos angle h-pos v-pos]
+            (if (< (mth/abs left-top-angle) (mth/abs top-right-angle))
+              [leftmost left-top-angle left-top (gpt/perpendicular left-top)]
+              [topmost top-right-angle top-right (gpt/perpendicular top-right)])
 
-        ;; Choose the position that creates the less angle between left-side and top-side
+            delta-x (if grid-edition? 40 0)
-        [label-pos angle h-pos v-pos]
+            delta-y (if grid-edition? 50 10)
-        (if (< (mth/abs left-top-angle) (mth/abs top-right-angle))
-          [leftmost left-top-angle left-top (gpt/perpendicular left-top)]
-          [topmost top-right-angle top-right (gpt/perpendicular top-right)])
 
-        delta-x (if grid-edition? 40 0)
+            label-pos
-        delta-y (if grid-edition? 50 10)
+            (-> label-pos
-
+                (gpt/subtract (gpt/scale (gpt/unit v-pos) (/ delta-y zoom)))
-        label-pos
+                (gpt/subtract (gpt/scale (gpt/unit h-pos) (/ delta-x zoom))))]
-        (-> label-pos
+        (dm/fmt "rotate(% %,%) scale(%, %) translate(%, %)"
-            (gpt/subtract (gpt/scale (gpt/unit v-pos) (/ delta-y zoom)))
+                ;; rotate
-            (gpt/subtract (gpt/scale (gpt/unit h-pos) (/ delta-x zoom))))]
+                angle (:x label-pos) (:y label-pos)
-
+                ;; scale
-    (dm/fmt "rotate(% %,%) scale(%, %) translate(%, %)"
+                (/ 1 zoom) (/ 1 zoom)
-            ;; rotate
+                ;; translate
-            angle (:x label-pos) (:y label-pos)
+                (* zoom (:x label-pos)) (* zoom (:y label-pos)))))))
-            ;; scale
-            (/ 1 zoom) (/ 1 zoom)
-            ;; translate
-            (* zoom (:x label-pos)) (* zoom (:y label-pos)))))

frontend/src/app/plugins/api.cljs

@@ -26,6 +26,7 @@
    [app.main.data.workspace.groups :as dwg]
    [app.main.data.workspace.media :as dwm]
    [app.main.data.workspace.selection :as dws]
+   [app.main.data.workspace.wasm-text :as dwwt]
    [app.main.fonts :refer [fetch-font-css]]
    [app.main.router :as rt]
    [app.main.store :as st]
@@ -338,9 +339,14 @@
 
         :else
         (let [page  (dsh/lookup-page @st/state)
-              shape (-> (cts/setup-shape {:type :text :x 0 :y 0 :grow-type :auto-width})
+              shape (-> (cts/setup-shape {:type :text
-                        (update :content txt/change-text text)
+                                          :x 0 :y 0
-                        (assoc :position-data nil))
+                                          :width 1 :height 1
+                                          :grow-type :auto-width})
+                        (update :content txt/change-text text
+                                ;; Text should be given a color by default
+                                {:fills [{:fill-color "#000000" :fill-opacity 1}]})
+                        (dissoc :position-data))
 
               changes
               (-> (cb/empty-changes)
@@ -348,7 +354,9 @@
                   (cb/with-objects (:objects page))
                   (cb/add-object shape))]
 
-          (st/emit! (ch/commit-changes changes))
+          (st/emit!
+           (ch/commit-changes changes)
+           (dwwt/resize-wasm-text-debounce (:id shape)))
           (shape/shape-proxy plugin-id (:id shape)))))
 
     :createShapeFromSvg

frontend/src/app/render_wasm/api.cljs

@@ -190,11 +190,13 @@
 (defn update-text-rect!
   [id]
   (when wasm/context-initialized?
-    (mw/emit!
+    (let [dimensions (get-text-dimensions id)
-     {:cmd :index/update-text-rect
+          page-id (:current-page-id @st/state)]
-      :page-id (:current-page-id @st/state)
+      (mw/emit!
-      :shape-id id
+       {:cmd :index/update-text-rect
-      :dimensions (get-text-dimensions id)})))
+        :page-id page-id
+        :shape-id id
+        :dimensions dimensions}))))
 
 
 (defn- ensure-text-content
@@ -1564,7 +1566,7 @@
                        :text-decoration (get element :text-decoration)
                        :letter-spacing  (get element :letter-spacing)
                        :font-style      (get element :font-style)
-                       :fills           (get element :fills)
+                       :fills           (d/nilv (get element :fills) [{:fill-color "#000000"}])
                        :text            text}))))))]
       (mem/free)
 

render-wasm/src/shapes.rs

@@ -1074,6 +1074,10 @@ impl Shape {
         self.children.first()
     }
 
+    pub fn children_count(&self) -> usize {
+        self.children_ids_iter(false).count()
+    }
+
     pub fn children_ids(&self, include_hidden: bool) -> Vec<Uuid> {
         if include_hidden {
             return self.children.iter().rev().copied().collect();

render-wasm/src/shapes/modifiers.rs

@@ -264,7 +264,7 @@ fn propagate_transform(
 
     // If this is a layout and we're only moving don't need to reflow
     if shape.has_layout() && is_resize {
-        entries.push_back(Modifier::reflow(shape.id));
+        entries.push_back(Modifier::reflow(shape.id, false));
     }
 
     if let Some(parent) = shape.parent_id.and_then(|id| shapes.get(&id)) {
@@ -272,7 +272,7 @@ fn propagate_transform(
         // if the current transformation is not a move propagation.
         // If it's a move propagation we don't need to reflow, the parent is already changed.
         if (parent.has_layout() || parent.is_group_like()) && (is_resize || !is_propagate) {
-            entries.push_back(Modifier::reflow(parent.id));
+            entries.push_back(Modifier::reflow(parent.id, false));
         }
     }
 }
@@ -282,7 +282,7 @@ fn propagate_reflow(
     state: &State,
     entries: &mut VecDeque<Modifier>,
     bounds: &mut HashMap<Uuid, Bounds>,
-    layout_reflows: &mut Vec<Uuid>,
+    layout_reflows: &mut HashSet<Uuid>,
     reflown: &mut HashSet<Uuid>,
     modifiers: &HashMap<Uuid, Matrix>,
 ) {
@@ -300,20 +300,7 @@ fn propagate_reflow(
         Type::Frame(Frame {
             layout: Some(_), ..
         }) => {
-            let mut skip_reflow = false;
+            layout_reflows.insert(*id);
-            if shape.is_layout_horizontal_fill() || shape.is_layout_vertical_fill() {
-                if let Some(parent_id) = shape.parent_id {
-                    if parent_id != Uuid::nil() && !reflown.contains(&parent_id) {
-                        // If this is a fill layout but the parent has not been reflown yet
-                        // we wait for the next iteration for reflow
-                        skip_reflow = true;
-                    }
-                }
-            }
-
-            if !skip_reflow {
-                layout_reflows.push(*id);
-            }
         }
         Type::Group(Group { masked: true }) => {
             let children_ids = shape.children_ids(true);
@@ -340,7 +327,7 @@ fn propagate_reflow(
 
     if let Some(parent) = shape.parent_id.and_then(|id| shapes.get(&id)) {
         if parent.has_layout() || parent.is_group_like() {
-            entries.push_back(Modifier::reflow(parent.id));
+            entries.push_back(Modifier::reflow(parent.id, false));
         }
     }
 }
@@ -382,19 +369,20 @@ pub fn propagate_modifiers(
     let mut entries: VecDeque<_> = modifiers
         .iter()
         .map(|entry| {
-            // If we receibe a identity matrix we force a reflow
+            // If we receive a identity matrix we force a reflow
             if math::identitish(&entry.transform) {
-                Modifier::Reflow(entry.id)
+                Modifier::Reflow(entry.id, false)
             } else {
                 Modifier::Transform(*entry)
             }
         })
         .collect();
 
+    let shapes = &state.shapes;
     let mut modifiers = HashMap::<Uuid, Matrix>::new();
     let mut bounds = HashMap::<Uuid, Bounds>::new();
     let mut reflown = HashSet::<Uuid>::new();
-    let mut layout_reflows = Vec::<Uuid>::new();
+    let mut layout_reflows = HashSet::<Uuid>::new();
 
     // We first propagate the transforms to the children and then after
     // recalculate the layouts. The layout can create further transforms that
@@ -412,25 +400,43 @@ pub fn propagate_modifiers(
                     &mut bounds,
                     &mut modifiers,
                 ),
-                Modifier::Reflow(id) => propagate_reflow(
+                Modifier::Reflow(id, force_reflow) => {
-                    &id,
+                    if force_reflow {
-                    state,
+                        reflown.remove(&id);
-                    &mut entries,
+                    }
-                    &mut bounds,
+
-                    &mut layout_reflows,
+                    propagate_reflow(
-                    &mut reflown,
+                        &id,
-                    &modifiers,
+                        state,
-                ),
+                        &mut entries,
+                        &mut bounds,
+                        &mut layout_reflows,
+                        &mut reflown,
+                        &modifiers,
+                    )
+                },
             }
         }
 
-        for id in layout_reflows.iter() {
+        let mut layout_reflows_vec: Vec<Uuid> = layout_reflows.into_iter().collect();
+
+        // We sort the reflows so they are process first the ones that are more
+        // deep in the tree structure. This way we can be sure that the children layouts
+        // are already reflowed.
+        layout_reflows_vec.sort_unstable_by(|id_a, id_b| {
+            let da = shapes.get_depth(id_a);
+            let db = shapes.get_depth(id_b);
+            db.cmp(&da)
+        });
+
+        let mut bounds_temp = bounds.clone();
+        for id in layout_reflows_vec.iter() {
             if reflown.contains(id) {
                 continue;
             }
-            reflow_shape(id, state, &mut reflown, &mut entries, &mut bounds);
+            reflow_shape(id, state, &mut reflown, &mut entries, &mut bounds_temp);
         }
-        layout_reflows = Vec::new();
+        layout_reflows = HashSet::new();
     }
 
     modifiers

render-wasm/src/shapes/modifiers/flex_layout.rs

@@ -61,6 +61,7 @@ impl LayoutAxis {
         layout_data: &LayoutData,
         flex_data: &FlexData,
     ) -> Self {
+        let num_child = shape.children_count();
         if flex_data.is_row() {
             Self {
                 main_size: layout_bounds.width(),
@@ -73,8 +74,8 @@ impl LayoutAxis {
                 padding_across_end: layout_data.padding_bottom,
                 gap_main: layout_data.column_gap,
                 gap_across: layout_data.row_gap,
-                is_auto_main: shape.is_layout_horizontal_auto(),
+                is_auto_main: num_child > 0 && shape.is_layout_horizontal_auto(),
-                is_auto_across: shape.is_layout_vertical_auto(),
+                is_auto_across: num_child > 0 && shape.is_layout_vertical_auto(),
             }
         } else {
             Self {
@@ -88,8 +89,8 @@ impl LayoutAxis {
                 padding_across_end: layout_data.padding_right,
                 gap_main: layout_data.row_gap,
                 gap_across: layout_data.column_gap,
-                is_auto_main: shape.is_layout_vertical_auto(),
+                is_auto_main: num_child > 0 && shape.is_layout_vertical_auto(),
-                is_auto_across: shape.is_layout_horizontal_auto(),
+                is_auto_across: num_child > 0 && shape.is_layout_horizontal_auto(),
             }
         }
     }
@@ -345,7 +346,10 @@ fn distribute_fill_across_space(layout_axis: &LayoutAxis, tracks: &mut [TrackDat
                 let mut size =
                     track.across_size - child.margin_across_start - child.margin_across_end;
                 size = size.clamp(child.min_across_size, child.max_across_size);
-                size = f32::min(size, layout_axis.across_space());
+
+                if !layout_axis.is_auto_across {
+                    size = f32::min(size, layout_axis.across_space());
+                }
                 child.across_size = size;
             }
         }
@@ -620,9 +624,12 @@ pub fn reflow_flex_layout(
 
             let mut transform = Matrix::default();
 
+            let mut force_reflow = false;
             if (new_width - child_bounds.width()).abs() > MIN_SIZE
                 || (new_height - child_bounds.height()).abs() > MIN_SIZE
             {
+                // When the child is fill we need to force a reflow
+                force_reflow = true;
                 transform.post_concat(&math::resize_matrix(
                     layout_bounds,
                     child_bounds,
@@ -637,7 +644,7 @@ pub fn reflow_flex_layout(
 
             result.push_back(Modifier::transform_propagate(child.id, transform));
             if child.has_layout() {
-                result.push_back(Modifier::reflow(child.id));
+                result.push_back(Modifier::reflow(child.id, force_reflow));
             }
 
             shape_anchor = next_anchor(

render-wasm/src/shapes/modifiers/grid_layout.rs

@@ -765,9 +765,12 @@ pub fn reflow_grid_layout(
 
         let mut transform = Matrix::default();
 
+        let mut force_reflow = false;
         if (new_width - child_bounds.width()).abs() > MIN_SIZE
             || (new_height - child_bounds.height()).abs() > MIN_SIZE
         {
+            // When the child is a fill it needs to be reflown
+            force_reflow = true;
             transform.post_concat(&math::resize_matrix(
                 &layout_bounds,
                 &child_bounds,
@@ -793,7 +796,7 @@ pub fn reflow_grid_layout(
 
         result.push_back(Modifier::transform_propagate(child.id, transform));
         if child.has_layout() {
-            result.push_back(Modifier::reflow(child.id));
+            result.push_back(Modifier::reflow(child.id, force_reflow));
         }
     }
 

render-wasm/src/shapes/transform.rs

@@ -8,7 +8,7 @@ use skia::Matrix;
 #[derive(PartialEq, Debug, Clone)]
 pub enum Modifier {
     Transform(TransformEntry),
-    Reflow(Uuid),
+    Reflow(Uuid, bool),
 }
 
 impl Modifier {
@@ -18,8 +18,8 @@ impl Modifier {
     pub fn parent(id: Uuid, transform: Matrix) -> Self {
         Modifier::Transform(TransformEntry::parent(id, transform))
     }
-    pub fn reflow(id: Uuid) -> Self {
+    pub fn reflow(id: Uuid, force_reflow: bool) -> Self {
-        Modifier::Reflow(id)
+        Modifier::Reflow(id, force_reflow)
     }
 }
 

render-wasm/src/state/shapes_pool.rs

@@ -177,6 +177,26 @@ impl ShapesPoolImpl {
         }
     }
 
+    // Given an id, returns the depth in the tree-shaped structure
+    // of shapes.
+    pub fn get_depth(&self, id: &Uuid) -> usize {
+        if id == &Uuid::nil() {
+            return 0;
+        }
+
+        let Some(idx) = self.uuid_to_idx.get(id) else {
+            return 0;
+        };
+
+        let shape = &self.shapes[*idx];
+
+        let Some(parent_id) = shape.parent_id else {
+            return 0;
+        };
+
+        self.get_depth(&parent_id) + 1
+    }
+
     #[allow(dead_code)]
     pub fn iter(&self) -> std::slice::Iter<'_, Shape> {
         self.shapes.iter()