* Am now able to generate helpfiles with contextids from xml via chmfilewriter. XML format needs some rethinking though.

git-svn-id: trunk@14499 -

packages/chm/src/chmfilewriter.pas

@@ -59,6 +59,7 @@ type
     procedure SaveToFile(AFileName: String);
     procedure WriteChm(AOutStream: TStream);
     function ProjectDir: String;
+    procedure AddFileWithContext(contextid:integer;filename:ansistring;contextname:ansistring='');
     // though stored in the project file, it is only there for the program that uses the unit
     // since we actually write to a stream
     property OutputFileName: String read FOutputFileName write FOutputFileName;
@@ -77,17 +78,16 @@ type
     property OnProgress: TChmProgressCB read FOnProgress write FOnProgress;
   end;
 
-implementation
-
-uses XmlCfg, chmsitemap;
-
-Type
   TChmContextNode = Class
                      URLName       : AnsiString;
                      ContextNumber : Integer;
                      ContextName   : AnsiString;
                     End;
 
+implementation
+
+uses XmlCfg, chmsitemap;
+
 { TChmProject }
 
 function TChmProject.GetData(const DataName: String; out PathInChm: String; out
@@ -129,7 +129,7 @@ begin
       IndexSitemap := TChmSiteMap.Create(stIndex);
       indexSitemap.LoadFromStream(IndexStream);
       Writer.AppendBinaryIndexFromSiteMap(IndexSitemap,False);
-      IndexSitemap.Free;	
+      IndexSitemap.Free;
     end;
     IndexStream.Free;
   end;
@@ -162,12 +162,13 @@ begin
   FFiles.Free;
   inherited Destroy;
 end;
+
 procedure TChmProject.LoadFromFile(AFileName: String);
 var
   Cfg: TXMLConfig;
   FileCount: Integer;
   I  : Integer;
-  nd : TChmContextNode; 
+  nd : TChmContextNode;
 begin
   Cfg := TXMLConfig.Create(nil);
   Cfg.Filename := AFileName;
@@ -175,12 +176,12 @@ begin
 
   Files.Clear;
   FileCount := Cfg.GetValue('Files/Count/Value', 0);
-  for I := 0 to FileCount-1 do 
+  for I := 0 to FileCount-1 do
     begin
-      nd:=TChmContextNode.Create; 
+      nd:=TChmContextNode.Create;
       nd.urlname:=Cfg.GetValue('Files/FileName'+IntToStr(I)+'/Value','');
       nd.contextnumber:=Cfg.GetValue('Files/FileName'+IntToStr(I)+'/ContextNumber',0);
-      nd.contextname:=Cfg.GetValue('Files/FileName'+IntToStr(I)+'/ContextName','');      
+      nd.contextname:=Cfg.GetValue('Files/FileName'+IntToStr(I)+'/ContextName','');
       Files.AddObject(nd.urlname,nd);
     end;
   IndexFileName := Cfg.GetValue('Files/IndexFile/Value','');
@@ -197,6 +198,33 @@ begin
   Cfg.Free;
 end;
 
+procedure TChmProject.AddFileWithContext(contextid:integer;filename:ansistring;contextname:ansistring='');
+var x : integer;
+    nd : TChmContextNode;
+begin
+  x:=files.indexof(filename);
+  if x=-1 then
+    begin
+      nd:=TChmContextNode.Create;
+      nd.urlname:=filename;
+      nd.contextnumber:=contextid;
+      nd.contextname:=contextname;
+      Files.AddObject(nd.urlname,nd);
+    end
+  else
+   begin
+     nd:=TChmContextNode(files.objects[x]);
+     if not assigned(nd) then
+       begin
+         nd:=TChmContextNode.Create;
+         nd.urlname:=filename;
+         files.objects[x]:=nd;
+       end;
+      nd.contextnumber:=contextid;
+      nd.contextname:=contextname;
+   end;
+end;
+
 procedure TChmProject.SaveToFile(AFileName: String);
 var
   Cfg: TXMLConfig;
@@ -208,7 +236,7 @@ begin
   Cfg.Filename := FileName;
   Cfg.Clear;
   Cfg.SetValue('Files/Count/Value', Files.Count);
-  for I := 0 to Files.Count-1 do 
+  for I := 0 to Files.Count-1 do
   begin
     nd:=TChmContextNode(files.objects[i]);
     Cfg.SetValue('Files/FileName'+IntToStr(I)+'/Value', Files.Strings[I]);
@@ -216,7 +244,7 @@ begin
       begin
         Cfg.SetValue('Files/FileName'+IntToStr(I)+'/ContextNumber', nd.contextnumber);
         Cfg.SetValue('Files/FileName'+IntToStr(I)+'/ContextName', nd.contextname);
-      end;  
+      end;
   end;
   Cfg.SetValue('Files/IndexFile/Value', IndexFileName);
   Cfg.SetValue('Files/TOCFile/Value', TableOfContentsFileName);
@@ -268,7 +296,8 @@ begin
   for i:=0 to files.count-1 do
     begin
       nd:=TChmContextNode(files.objects[i]);
-      Writer.AddContext(nd.ContextNumber,files[i]);
+      if assigned(nd) and (nd.contextnumber<>0) then
+        Writer.AddContext(nd.ContextNumber,files[i]);
     end;
 
   // and write!

packages/chm/src/chmwriter.pas

@@ -204,7 +204,7 @@ const
     procedure logentry(s:string);
     begin
       Writeln(s);
-      flush(stdout);     
+      flush(stdout);
     end;
   {$endif}
 {$I chmobjinstconst.inc}
@@ -1883,17 +1883,17 @@ Var i             : Integer;
     EntryBytes    : Integer;
     Hdr           : TBTreeHeader;
     TreeDepth     : Integer;
-   
+
 {$ifdef binindex}
 procedure printloopvars(i:integer);
 
-begin   
+begin
   Writeln('location :' ,i, ' blocknr :', blocknr,' level:',TreeDepth);
   Writeln('blockn      length: ',length(blockn),' indexblocknr: ',indexblocknr,' blockind ',blockind);
   Writeln('blocknplus1 length: ',length(blocknplus1),' blocknplusindex:',blocknplusindex,' entries:',blocknplusentries);
   flush(stdout);
 end;
-{$endif}   
+{$endif}
 begin
   IndexStream:=TMemoryStream.Create;
   indexstream.size:=sizeof(TBTreeHeader);
@@ -1955,7 +1955,7 @@ begin
       {$endif}
       FinalizeIndexBlockN(@blockn[indexblocknr][0],blockind,blockentries); // also increasing indexblocknr
       inc(IndexBlockNr);
-    end; 
+    end;
   {$ifdef binindex}
     writeln('binindex: listingblocks : '+inttostr(listingblocks),' indexblocks: ',indexblocknr,' entries:',blockentries);
   {$endif}
@@ -2058,11 +2058,11 @@ procedure stadd(fn:string;stream:TStream);
 
 begin
   Stream.Position:=0;
-  if CHW then 
+  if CHW then
     fn:=uppercase(fn);
   {$ifdef binindex}
     logentry('before append '+fn);
-  {$endif}  
+  {$endif}
   AddStreamToArchive(fn,'/$WWKeywordLinks/',stream,True);
 end;
 
@@ -2090,6 +2090,7 @@ var
   Offset: DWord;
 begin
   if FContextStream = nil then begin
+    FContextStream:=TMemoryStream.Create;
     // #IVB starts with a dword which is the size of the stream - sizeof(dword)
     FContextStream.WriteDWord(0);
     // we will update this when we write the file to the final stream