Allow to change smoothing from app, fixes #1555

ivmartel · Nov 16, 2023 · 584d437 · 584d437
1 parent a844e37
commit 584d437
Show file tree

Hide file tree

Showing 3 changed files with 49 additions and 0 deletions.
diff --git a/src/app/application.js b/src/app/application.js
@@ -565,6 +565,16 @@ dwv.App = function () {
     controller.initialise();
   };
 
+  /**
+   * Set the imageSmoothing flag value. Default is false.
+   *
+   * @param {boolean} flag True to enable smoothing.
+   */
+  this.setImageSmoothing = function (flag) {
+    stage.setImageSmoothing(flag);
+    stage.draw();
+  };
+
   /**
    * Get the layer group configuration from a data index.
    * Defaults to div id 'layerGroup' if no association object has been set.

diff --git a/src/gui/layerGroup.js b/src/gui/layerGroup.js
@@ -225,6 +225,13 @@ dwv.gui.LayerGroup = function (containerDiv) {
    */
   var currentPosition;
 
+  /**
+   * Image smoothing flag.
+   *
+   * @type {boolean}
+   */
+  var imageSmoothing = false;
+
   /**
    * Get the target orientation.
    *
@@ -274,6 +281,21 @@ dwv.gui.LayerGroup = function (containerDiv) {
     }
   };
 
+  /**
+   * Set the imageSmoothing flag value.
+   *
+   * @param {boolean} flag True to enable smoothing.
+   */
+  this.setImageSmoothing = function (flag) {
+    imageSmoothing = flag;
+    // set for existing layers
+    for (let i = 0; i < layers.length; ++i) {
+      if (layers[i] instanceof dwv.gui.ViewLayer) {
+        layers[i].enableImageSmoothing(flag);
+      }
+    }
+  };
+
   /**
    * Update crosshair on offset or zoom change.
    */
@@ -486,6 +508,7 @@ dwv.gui.LayerGroup = function (containerDiv) {
     containerDiv.append(div);
     // view layer
     var layer = new dwv.gui.ViewLayer(div);
+    layer.enableImageSmoothing(imageSmoothing);
     // add layer
     layers.push(layer);
     // mark it as active

diff --git a/src/gui/stage.js b/src/gui/stage.js
@@ -137,6 +137,9 @@ dwv.gui.Stage = function () {
   // binder callbacks
   var callbackStore = null;
 
+  // image smoothing flag
+  var imageSmoothing = false;
+
   /**
    * Get the layer group at the given index.
    *
@@ -202,6 +205,7 @@ dwv.gui.Stage = function () {
   this.addLayerGroup = function (htmlElement) {
     activeLayerGroupIndex = layerGroups.length;
     var layerGroup = new dwv.gui.LayerGroup(htmlElement);
+    layerGroup.setImageSmoothing(imageSmoothing);
     // add to storage
     var isBound = callbackStore && callbackStore.length !== 0;
     if (isBound) {
@@ -339,6 +343,18 @@ dwv.gui.Stage = function () {
     callbackStore = null;
   };
 
+  /**
+   * Set the imageSmoothing flag value.
+   *
+   * @param {boolean} flag True to enable smoothing.
+   */
+  this.setImageSmoothing = function (flag) {
+    imageSmoothing = flag;
+    for (let i = 0; i < layerGroups.length; ++i) {
+      layerGroups[i].setImageSmoothing(flag);
+    }
+  };
+
   /**
    * Get the binder callback function for a given layer group index.
    * The function is created if not yet stored.