small fix for for #68, AV on runtime termination

src/ce_main.pas

@@ -881,8 +881,6 @@ begin
   fProjectGroup := getProjectGroup;
   //
   getCMdParams;
-  if fNativeProject.isNil then
-    newNativeProj;
   //
   fInitialized := true;
 end;
@@ -1336,6 +1334,8 @@ begin
     // see: http://forum.lazarus.freepascal.org/index.php/topic,30616.0.htm
     if fAppliOpts.reloadLastDocuments then
       LoadLastDocsAndProj;
+    if fProjectInterface = nil then
+      newNativeProj;
 
     DockMaster.ResetSplitters;
 
@@ -1398,8 +1398,11 @@ begin
     (dlgFileChangeClose(fProjectInterface.filename) = mrCancel) then exit;
   for i := fMultidoc.documentCount-1 downto 0 do
     if not fMultidoc.closeDocument(i) then exit;
+  if fProjectGroup.groupModified then if
+    (dlgFileChangeClose(fProjectGroup.groupFilename) = mrCancel) then exit;
   canClose := true;
   closeProj;
+  fProjectGroup.closeGroup;
 end;
 
 procedure TCEMainForm.updateDocumentBasedAction(sender: TObject);
@@ -2636,10 +2639,12 @@ begin
   if fProjectInterface = nil then exit;
   //
   if not fProjectInterface.inGroup then
+  begin
     fProjectInterface.getProject.Free;
-  fProjectInterface := nil;
-  fNativeProject := nil;
-  fDubProject := nil;
+    fProjectInterface := nil;
+    fNativeProject := nil;
+    fDubProject := nil;
+  end;
   showProjTitle;
 end;
 

src/ce_projgroup.pas

@@ -85,8 +85,7 @@ type
     procedure btnRemProjClick(Sender: TObject);
     procedure lstProjDblClick(Sender: TObject);
   private
-    fUngrouped: ICECommonProject;
-    fFromGroup: boolean;
+    fPrevProj: ICECommonProject;
     fProjSubj: TCEProjectSubject;
     //
     procedure projNew(aProject: ICECommonProject);
@@ -121,6 +120,7 @@ end;
 
 destructor TProjectGroup.destroy;
 begin
+  fItems.Clear;
   fItems.Free;
   inherited;
 end;
@@ -279,6 +279,7 @@ destructor TProjectGroupItem.destroy;
 begin
   if fProj <> nil then
     fProj.getProject.free;
+  fProj := nil;
   inherited;
 end;
 {$ENDREGION}
@@ -297,8 +298,8 @@ end;
 
 destructor TCEProjectGroupWidget.destroy;
 begin
-  inherited;
   fProjSubj.free;
+  inherited;
 end;
 
 procedure TCEProjectGroupWidget.DoShow;
@@ -311,8 +312,7 @@ end;
 {$REGION Widget ICEProjectObserver ---------------------------------------------}
 procedure TCEProjectGroupWidget.projNew(aProject: ICECommonProject);
 begin
-  if not fFromGroup then
-    fUngrouped := aProject;
+  fPrevProj := aProject;
 end;
 
 procedure TCEProjectGroupWidget.projChanged(aProject: ICECommonProject);
@@ -322,14 +322,12 @@ end;
 
 procedure TCEProjectGroupWidget.projClosing(aProject: ICECommonProject);
 begin
-  if not fFromGroup then
-    fUngrouped := nil;
+  fPrevProj := nil;
 end;
 
 procedure TCEProjectGroupWidget.projFocused(aProject: ICECommonProject);
 begin
-  if not fFromGroup then
-    fUngrouped := aProject;
+  fPrevProj := aProject;
 end;
 
 procedure TCEProjectGroupWidget.projCompiling(aProject: ICECommonProject);
@@ -385,12 +383,12 @@ procedure TCEProjectGroupWidget.lstProjDblClick(Sender: TObject);
 begin
   if lstProj.ItemIndex = -1 then
     exit;
-  fFromGroup := true;
   TProjectGroupItem(lstProj.Selected.Data).lazyLoad;
+  if fPrevProj <> nil then
+    subjProjClosing(fProjSubj, fPrevProj);
   subjProjFocused(fProjSubj, TProjectGroupItem(lstProj.Selected.Data).project);
   if projectGroup.index <> lstProj.ItemIndex then
     projectGroup.index := lstProj.ItemIndex;
-  fFromGroup := false;
 end;
 
 procedure TCEProjectGroupWidget.handleChanged(sender: TObject);