richmemo: improve win32 numbering

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@3842 8e941d3f-bd1b-0410-a28a-d453659cc2b4

components/richmemo/richmemo.pas

@@ -62,14 +62,15 @@ type
     Style       : TParaNumStyle;
     Indent      : Double;
     CustomChar  : WideChar;
-    NumberStart : Integer; // must be negative one to continue numbering, used for pnNumber only
+    NumberStart : Integer;  // used for pnNumber only
     SepChar     : WideChar;
+    ForceNewNum : Boolean;  // if true and Style is pnNumber, NumberStart is used for the new numbering
   end;
 
 const
-  SepNone : WideChar = #0;
-  SepPar  : WideChar = ')';
-  SepDot  : WideChar = '.';
+  SepNone = #0;
+  SepPar  = ')';
+  SepDot  = '.';
 
 
 type
@@ -228,6 +229,8 @@ function GetFontParams(const Name: String; Size: Integer; color: TColor; styles:
 
 procedure InitParaMetric(var m: TParaMetric);
 procedure InitParaNumbering(var n: TParaNumbering);
+procedure InitParaNumber(var n: TParaNumbering; ASepChar: WideChar = SepPar; StartNum: Integer = 1);
+procedure InitParaBullet(var n: TParaNumbering);
 
 var
   RTFLoadStream : function (AMemo: TCustomRichMemo; Source: TStream): Boolean = nil;
@@ -278,6 +281,20 @@ begin
   FillChar(n, sizeof(n), 0);
 end;
 
+procedure InitParaNumber(var n: TParaNumbering; ASepChar: WideChar; StartNum: Integer);
+begin
+  InitParaNumbering(n);
+  n.Style:=pnNumber;
+  n.NumberStart:=StartNum;
+  n.SepChar:=ASepChar;
+end;
+
+procedure InitParaBullet(var n: TParaNumbering);
+begin
+  InitParaNumbering(n);
+  n.Style:=pnBullet;
+end;
+
 { TRichMemo }
 
 function TRichMemo.GetRTF: string;

components/richmemo/win32/win32richmemo.pas

@@ -610,6 +610,7 @@ begin
   Result:=False;
   if not Assigned(RichEditManager) or not Assigned(AWinControl) then Exit;
 
+  InitParaNumbering(ANumber);
   eventmask:=RichEditManager.SetEventMask(AWinControl.Handle, 0);
   RichEditManager.GetPara2(AWinControl.Handle, TextStart, para);
   RichEditManager.SetEventMask(AWinControl.Handle, eventmask);
@@ -628,8 +629,14 @@ begin
   else
     ANumber.Style:=pnNone;
   end;
+  if para.wNumberingStyle or PFNS_PLAIN > 0 then
+    ANumber.SepChar:=SepNone
+  else if para.wNumberingStyle or PFNS_PERIOD > 0 then
+    ANumber.SepChar:=SepDot
+  else if (ANumber.Style<>pnNone) and ((para.wNumberingStyle and PFNS_SOMESEPCHAR)= 0) then
+    ANumber.SepChar:=SepPar;
   ANumber.Indent:=para.wNumberingTab/20;
-  Result:=true
+  Result:=true;
 end;
 
 class procedure TWin32WSCustomRichMemo.SetParaNumbering(
@@ -637,7 +644,8 @@ class procedure TWin32WSCustomRichMemo.SetParaNumbering(
   const ANumber: TIntParaNumbering);
 var
   para : PARAFORMAT2;
-  eventmask: INteger;
+  eventmask: Integer;
+  numbstyle: Integer;
 begin
   if not Assigned(RichEditManager) or not Assigned(AWinControl) then Exit;
   FillChar(para, SizeOf(para), 0);
@@ -645,6 +653,13 @@ begin
   para.cbSize:=sizeof(para);
   para.dwMask:=
      PFM_NUMBERING or PFM_NUMBERINGTAB;
+
+  numbstyle:=0;
+  case ANumber.SepChar of
+    SepPar: numbstyle:=numbstyle or PFNS_PAREN;
+    SepDot: numbstyle:=numbstyle or PFNS_PERIOD;
+    SepNone: numbstyle:=numbstyle or PFNS_PLAIN;
+  end;
   case ANumber.Style of
     pnNone:       para.wNumbering:=0;
     pnBullet:     para.wNumbering:=PFN_BULLET;
@@ -652,7 +667,7 @@ begin
       para.wNumbering:=PFN_ARABIC;
       para.dwMask:=para.dwMask or PFM_NUMBERINGSTART;
       para.wNumberingStart:=ANumber.NumberStart;
-      para.wNumberingStyle:=PFNS_NEWNUMBER;
+      if ANumber.ForceNewNum then numbstyle:=numbstyle or PFNS_NEWNUMBER;
     end;
     pnLowLetter:  para.wNumbering:=PFN_LCLETTER;
     pnLowRoman:   para.wNumbering:=PFN_LCROMAN;
@@ -664,6 +679,10 @@ begin
       para.dwMask:=para.dwMask or PFM_NUMBERINGSTART;
     end;
   end;
+  if numbstyle<> 0 then begin
+    para.dwMask:=para.dwMask or PFM_NUMBERINGSTYLE;
+    para.wNumberingStyle:=numbstyle;
+  end;
 
   para.wNumberingTab:=round(ANumber.Indent*20);
   eventmask:=RichEditManager.SetEventMask(AWinControl.Handle, 0);

components/richmemo/win32/win32richmemoproc.pas

@@ -191,6 +191,8 @@ const
   PFNS_PLAIN      = $0300;
   PFNS_NONUMBER   = $0400;
   PFNS_NEWNUMBER  = $8000;
+  PFNS_SOMESEPCHAR = PFNS_PARENS or PFNS_PERIOD or PFNS_PLAIN;
+
 
 implementation