[rcanvas] let store RCanvas in ROOT file via context menu

Disable menu for PDF, PS or C file - not yet implemented for RCanvas

gui/canvaspainter/src/RCanvasPainter.cxx

@@ -34,6 +34,7 @@
 #include "TList.h"
 #include "TEnv.h"
 #include "TROOT.h"
+#include "TFile.h"
 #include "TClass.h"
 #include "TBufferJSON.h"
 #include "TBase64.h"
@@ -512,6 +513,12 @@ void RCanvasPainter::ProcessData(unsigned connid, const std::string &arg)
       }
    } else if (check_header("SAVE:")) {
       SaveCreatedFile(cdata);
+   } else if (check_header("PRODUCE:")) {
+      R__LOG_DEBUG(0, CanvasPainerLog()) << "Create file " << cdata;
+
+      TFile *f = TFile::Open(cdata.c_str(), "RECREATE");
+      f->WriteObject(&fCanvas, "Canvas");
+      delete f;
    } else if (check_header("REQ:")) {
       auto req = TBufferJSON::FromJSON<RDrawableRequest>(cdata);
       if (req) {

ui5/canv/controller/Canvas.controller.js

@@ -32,7 +32,8 @@ sap.ui.define([
                                      StatusIcon: chk_icon(false),
                                      ToolbarIcon: chk_icon(false),
                                      TooltipIcon: chk_icon(true),
-                                     StatusLbl1:"", StatusLbl2:"", StatusLbl3:"", StatusLbl4:"", Standalone: true });
+                                     StatusLbl1:"", StatusLbl2:"", StatusLbl3:"", StatusLbl4:"",
+                                     Standalone: true, isRoot6: true });
          this.getView().setModel(model);
 
          let vd = this.getView().getViewData();
@@ -65,11 +66,18 @@ sap.ui.define([
             cp.drawInUI5ProjectionArea = this.drawInProjectionArea.bind(this);
 
             cp.showUI5Panel = this.showPanelInLeftArea.bind(this);
+
+            if (cp.v7canvas) model.setProperty("/isRoot6", false);
          }
 
          // this.toggleGedEditor();
       },
 
+      isv7: function() {
+         let cp = this.getCanvasPainter();
+         return cp && cp.v7canvas;
+      },
+
       executeObjectMethod: function(painter, method, menu_obj_id) {
 
          if (method.fArgs!==undefined) {
@@ -288,7 +296,8 @@ sap.ui.define([
              p = this.getCanvasPainter();
          if (p) p.registerForPadEvents(null);
          if (ged) ged.cleanupGed();
-         if (p && p.processChanges) p.processChanges("sbits", p);
+         if (p && p.processChanges)
+            p.processChanges("sbits", p);
       },
 
       getLeftController: function(name) {

ui5/canv/view/Canvas.view.xml

@@ -22,9 +22,9 @@
                               <MenuItem text="Canvas.svg" tooltip="Creates SVG snapshot of browser window"/>
                               <MenuItem text="Canvas.jpeg" tooltip="Creates JPEG snapshot of browser window"/>
                               <MenuItem text="Canvas.root" startsSection="true" tooltip="Produces ROOT output on C++ side"/>
-                              <MenuItem text="Canvas.pdf" tooltip="Produces PDF output on C++ side"/>
-                              <MenuItem text="Canvas.ps" tooltip="Produces PS output on C++ side"/>
-                              <MenuItem text="Canvas.C" tooltip="Produces C output on server side"/>
+                              <MenuItem text="Canvas.pdf" enabled="{/isRoot6}" tooltip="Produces PDF output on C++ side"/>
+                              <MenuItem text="Canvas.ps" enabled="{/isRoot6}" tooltip="Produces PS output on C++ side"/>
+                              <MenuItem text="Canvas.C" enabled="{/isRoot6}" tooltip="Produces C output on server side"/>
                            </items>
                         </MenuItem>
                         <MenuItem text="Save as ..." icon="sap-icon://save" enabled="false"/>