Handle resize of TGeo drawing inside TCanvas

Author: linev

scripts/JSRoot.geom.js

@@ -4160,21 +4160,13 @@ JSROOT.define(['d3', 'three', 'geobase', 'painter', 'base3d'], (d3, THREE, geo,
       jsrp.showProgress(msg);
    }
 
-   /** @summary Check if HTML element was resized and drawing need to be adjusted */
-   TGeoPainter.prototype.checkResize = function(arg) {
-      let cp = this.getCanvPainter();
-
-      // firefox is the only browser which correctly supports resize of embedded canvas,
-      // for others we should force canvas redrawing at every step
-      if (cp && !cp.checkCanvasResize(arg)) return false;
+   /** @summary perform resize */
+   TGeoPainter.prototype.performResize = function(width, height) {
+      if ((this._scene_width === width) && (this._scene_height === height)) return false;
+      if ((width < 10) || (height < 10)) return false;
 
-      let sz = this.getSizeFor3d();
-
-      if ((this._scene_width === sz.width) && (this._scene_height === sz.height)) return false;
-      if ((sz.width<10) || (sz.height<10)) return false;
-
-      this._scene_width = sz.width;
-      this._scene_height = sz.height;
+      this._scene_width = width;
+      this._scene_height = height;
 
       if (this._camera && this._renderer) {
          if (this._camera.type == "PerspectiveCamera")
@@ -4192,6 +4184,19 @@ JSROOT.define(['d3', 'three', 'geobase', 'painter', 'base3d'], (d3, THREE, geo,
       return true;
    }
 
+
+   /** @summary Check if HTML element was resized and drawing need to be adjusted */
+   TGeoPainter.prototype.checkResize = function(arg) {
+      let cp = this.getCanvPainter();
+
+      // firefox is the only browser which correctly supports resize of embedded canvas,
+      // for others we should force canvas redrawing at every step
+      if (cp && !cp.checkCanvasResize(arg)) return false;
+
+      let sz = this.getSizeFor3d();
+      return this.performResize(sz.width, sz.height);
+   }
+
    /** @summary Toggle enlarge state */
    TGeoPainter.prototype.toggleEnlarge = function() {
       if (this.enlargeMain('toggle'))
@@ -4286,6 +4291,21 @@ JSROOT.define(['d3', 'three', 'geobase', 'painter', 'base3d'], (d3, THREE, geo,
       return true;
    }
 
+   /** @summary Redraw TGeo object inside TPad */
+   TGeoPainter.prototype.redraw = function(reason) {
+      if (!this._on_pad || (reason != "resize")) return;
+
+      let main = this.getFramePainter();
+      if (!main) return;
+
+      let sz = main.getSizeFor3d(main.access3dKind());
+
+      main.apply3dSize(sz);
+
+      return this.performResize(sz.width, sz.height);
+   }
+
+
    /** @summary Create geo painter
      * @private */
    jsrp.createGeoPainter = function(divid, obj, opt) {