* Clear and ClearBody implemented, but they are bugged because they do not

[helm.git] / helm / gTopLevel / gTopLevel.ml
diff --git a/helm/gTopLevel/gTopLevel.ml b/helm/gTopLevel/gTopLevel.ml

index cfe4d2e06bfcc603673d573921f617dcad2386be..26c0b2e65c427c16f9001a57db91c40d4b73c4fd 100644 (file)
--- a/helm/gTopLevel/gTopLevel.ml
+++ b/helm/gTopLevel/gTopLevel.ml
@@ -568,6 +568,60 @@ let call_tactic_with_goal_input_in_scratch tactic scratch_window () =
         ("<h1 color=\"red\">No term selected</h1>")
  ;;
  
+let call_tactic_with_hypothesis_input tactic rendering_window () =
+ let module L = LogicalOperations in
+ let module G = Gdome in
+  let proofw = (rendering_window#proofw : GMathView.math_view) in
+  let output = (rendering_window#output : GMathView.math_view) in
+  let outputhtml = (rendering_window#outputhtml : GHtml.xmhtml) in
+  let savedproof = !ProofEngine.proof in
+  let savedgoal  = !ProofEngine.goal in
+   match proofw#get_selection with
+     Some node ->
+      let xpath =
+       ((node : Gdome.element)#getAttributeNS
+         ~namespaceURI:helmns
+         ~localName:(G.domString "xref"))#to_string
+      in
+       if xpath = "" then assert false (* "ERROR: No xref found!!!" *)
+       else
+        begin
+         try
+          match !current_goal_infos with
+             Some (_,_,ids_to_hypotheses) ->
+              let id = xpath in
+               tactic (Hashtbl.find ids_to_hypotheses id) ;
+               refresh_sequent rendering_window#proofw ;
+               refresh_proof rendering_window#output
+           | None -> assert false (* "ERROR: No current term!!!" *)
+         with
+            RefreshSequentException e ->
+             output_html outputhtml
+              ("<h1 color=\"red\">Exception raised during the refresh of the " ^
+               "sequent: " ^ Printexc.to_string e ^ "</h1>") ;
+             ProofEngine.proof := savedproof ;
+             ProofEngine.goal := savedgoal ;
+             refresh_sequent proofw
+          | RefreshProofException e ->
+             output_html outputhtml
+              ("<h1 color=\"red\">Exception raised during the refresh of the " ^
+               "proof: " ^ Printexc.to_string e ^ "</h1>") ;
+             ProofEngine.proof := savedproof ;
+             ProofEngine.goal := savedgoal ;
+             refresh_sequent proofw ;
+             refresh_proof output
+          | e ->
+             output_html outputhtml
+              ("<h1 color=\"red\">" ^ Printexc.to_string e ^ "</h1>") ;
+             ProofEngine.proof := savedproof ;
+             ProofEngine.goal := savedgoal ;
+        end
+   | None ->
+      output_html outputhtml
+       ("<h1 color=\"red\">No term selected</h1>")
+;;
+
+
  let intros rendering_window = call_tactic ProofEngine.intros rendering_window;;
  let exact rendering_window =
   call_tactic_with_input ProofEngine.exact rendering_window
@@ -599,6 +653,12 @@ let change rendering_window =
  let letin rendering_window =
   call_tactic_with_input ProofEngine.letin rendering_window
  ;;
+let clearbody rendering_window =
+ call_tactic_with_hypothesis_input ProofEngine.clearbody rendering_window
+;;
+let clear rendering_window =
+ call_tactic_with_hypothesis_input ProofEngine.clear rendering_window
+;;
  
  
  let whd_in_scratch scratch_window =
@@ -1322,6 +1382,14 @@ class rendering_window output proofw (label : GMisc.label) =
   let letinb =
    GButton.button ~label:"Let ... In"
     ~packing:(hbox3#pack ~expand:false ~fill:false ~padding:5) () in
+ let hbox4 =
+  GPack.hbox ~packing:(vbox1#pack ~expand:false ~fill:false ~padding:5) () in
+ let clearbodyb =
+  GButton.button ~label:"ClearBody"
+   ~packing:(hbox4#pack ~expand:false ~fill:false ~padding:5) () in
+ let clearb =
+  GButton.button ~label:"Clear"
+   ~packing:(hbox4#pack ~expand:false ~fill:false ~padding:5) () in
   let outputhtml =
    GHtml.xmhtml
     ~source:"<html><body bgColor=\"white\"></body></html>"
@@ -1371,6 +1439,8 @@ object(self)
    ignore(cutb#connect#clicked (cut self)) ;
    ignore(changeb#connect#clicked (change self)) ;
    ignore(letinb#connect#clicked (letin self)) ;
+  ignore(clearbodyb#connect#clicked (clearbody self)) ;
+  ignore(clearb#connect#clicked (clear self)) ;
    ignore(introsb#connect#clicked (intros self)) ;
    Logger.log_callback :=
     (Logger.log_to_html ~print_and_flush:(output_html outputhtml))