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richmemo: update RTF saving - specify range to extract as rtf

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git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@3801 8e941d3f-bd1b-0410-a28a-d453659cc2b4
This commit is contained in:
skalogryz
2014-11-28 04:51:32 +00:00
parent 179c8192f6
commit fc26c9c573
1 changed files with 55 additions and 37 deletions
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92
components/richmemo/richmemortf.pas
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@ -19,13 +19,15 @@ function LangConvGet(lang: Integer; var convproc: TEncConvProc): Boolean;
type
TSaveParams = record // reserved
start : Integer; // the first character for the extract
len : Integer; // the number of characters to extract
end;
// the function depends on GetStyleRange and to be implemented properly
// if GetStyleRange, GetParaMetric, GetParaAlignment is not working properly
// the resulting RTF would not contain any styles or the text styles would be wrong
procedure IntSaveStream(ARich: TcustomRichMemo; SaveParams: TSaveParams; Dst: TStream);
function SaveStream(ARich: TcustomRichMemo; Dst: TStream): Boolean;
function SaveStream(ARich: TCustomRichMemo; Dst: TStream): Boolean;
procedure RegisterRTFSaver;
implementation
@ -470,6 +472,8 @@ var
p : TSaveParams;
begin
FillChar(p, sizeof(p), 0);
p.start:=-1;
p.len:=-1;
IntSaveStream(ARich, p, Dst);
Result:=True;
end;
@ -558,7 +562,12 @@ begin
isNewPara:=false;
while i<=length(u) do begin
if u[i]='\' then Result:=Result+'\\'
else if u[i]=#13 then begin
else if u[i]=#10 then begin
Result:=Result+'\par ';
isNewPara:=true;
inc(i);
Break;
end else if u[i]=#13 then begin
Result:=Result+'\par ';
isNewPara:=true;
inc(i);
@ -573,6 +582,8 @@ end;
procedure IntSaveStream(ARich: TCustomRichMemo; SaveParams: TSaveParams; Dst: TStream);
var
ofs : Integer;
needlen : Integer;
endless : Boolean;
root : TStyleRange; // first in the list
last : TStyleRange; // last in the list
rng : TStyleRange; // temproray
@ -591,21 +602,28 @@ var
pm : TParaMetric;
procedure WriteOut(const s: string);
procedure RtfOut(const s: string);
begin
write(s);
Dst.Write(s[1], length(s));
end;
begin
ofs:=0;
if SaveParams.start<0 then ofs:=0
else ofs:=SaveParams.start;
root:=nil;
last:=nil;
needlen:=SaveParams.len;
endless:=needlen<0;
while ARich.GetStyleRange(ofs, st, len) do begin
rng:=TStyleRange.Create;
rng.textStart:=st;
rng.textLength:=len;
if not endless then begin
if needlen<len then rng.textLength:=needlen
else rng.textLength:=len;
dec(needLen, len);
end else
rng.textLength:=len;
ARich.GetTextAttributes(ofs, rng.font);
if not Assigned(root) then root:=rng;
@ -613,6 +631,7 @@ begin
last:=rng;
inc(ofs, len);
if not endless and (needLen<=0) then break;
end;
if root=nil then begin
@ -630,25 +649,25 @@ begin
PrepareFontTable(root, fontTable);
PrepareColorTable(root, colorTable);
WriteOut('{\rtf1\ansi\ansicp1252\deff0\deflan1033');
RtfOut('{\rtf1\ansi\ansicp1252\deff0\deflan1033');
// start of RTF
if fontTable.Count>0 then begin
// at least on font should be present anyway.
WriteOut('{\fonttbl');
RtfOut('{\fonttbl');
for i:=0 to fontTable.Count-1 do begin
// setting font id, charset to 0 and name
WriteOut('{\f'+IntToStR(i)+'\fcharset0 '+fontTable[i]+';}');
RtfOut('{\f'+IntToStR(i)+'\fcharset0 '+fontTable[i]+';}');
end;
WriteOut('}');
RtfOut('}');
end;
if colorTable.Count>1 then begin
WriteOut('{\colortbl');
RtfOut('{\colortbl');
for i:=0 to colorTable.Count-1 do begin
WriteOut( colortable[i] );
WriteOut( ';');
RtfOut( colortable[i] );
RtfOut( ';');
end;
WriteOut('}');
RtfOut('}');
end;
isnewpara := true;
@ -660,63 +679,62 @@ begin
ARich.SelStart:=rng.textStart;
ARich.SelLength:=rng.textLength;
u:=UTF8Decode(ARich.SelText);
WriteOut('\f'+IntToStr(rng.fontId));
WriteOut('\fs'+IntToStr(rng.font.Size*2));
RtfOut('\f'+IntToStr(rng.fontId));
RtfOut('\fs'+IntToStr(rng.font.Size*2));
if (fsBold in rng.font.Style) then begin
WriteOut('\b');
RtfOut('\b');
isbold:=true;
end else begin
if isbold then WriteOut('\b0');
if isbold then RtfOut('\b0');
isbold:=false;
end;
if (fsUnderline in rng.font.Style) then begin
WriteOut('\ul');
RtfOut('\ul');
isuline:=true
end else begin
if isuline then Write('\ulnone');
if isuline then RtfOut('\ulnone');
isuline:=false;
end;
if isColor<>rng.colorId then begin
WriteOut('\cf'+IntToStR(rng.colorId));
RtfOut('\cf'+IntToStR(rng.colorId));
isColor:=rng.ColorId;
end;
if (fsItalic in rng.font.Style) then begin
WriteOut('\i');
RtfOut('\i');
isitalic:=true;
end else begin
if isitalic then WriteOut('\i0');
if isitalic then RtfOut('\i0');
isitalic:=false;
end;
WriteOut(' ');
RtfOut(' ');
i:=1;
while i<=length(u) do begin
if isNewPara then begin
//todo: WriteOut() paragraph info
ARich.GetParaMetric(i+rng.textStart, pm);
WriteOut('\pard');
RtfOut('\pard');
case ARich.GetParaAlignment(i+rng.TextStart) of
paRight: WriteOut('\qr');
paCenter: WriteOut('\qc');
paJustify: WriteOut('\qj');
paRight: RtfOut('\qr');
paCenter: RtfOut('\qc');
paJustify: RtfOut('\qj');
else
end;
WriteOut('\li'+IntToStr(round(pm.HeadIndent*20)));
RtfOut('\li'+IntToStr(round(pm.HeadIndent*20)));
if pm.FirstLine-pm.HeadIndent<>0 then
WriteOut('\fi'+IntToStr(round((pm.FirstLine-pm.HeadIndent)*20)));
if pm.TailIndent<>0 then WriteOut('\ri'+IntToStr(round(pm.TailIndent*20)));
if pm.SpaceAfter<>0 then WriteOut('\sa'+IntToStr(round(pm.SpaceAfter*20)));
if pm.SpaceBefore<>0 then WriteOut('\sb'+IntToStr(round(pm.SpaceBefore*20)));
WriteOut(' ');
RtfOut('\fi'+IntToStr(round((pm.FirstLine-pm.HeadIndent)*20)));
if pm.TailIndent<>0 then RtfOut('\ri'+IntToStr(round(pm.TailIndent*20)));
if pm.SpaceAfter<>0 then RtfOut('\sa'+IntToStr(round(pm.SpaceAfter*20)));
if pm.SpaceBefore<>0 then RtfOut('\sb'+IntToStr(round(pm.SpaceBefore*20)));
RtfOut(' ');
end;
s:=GetRTFWriteText(u, i, isnewpara);
WriteOut(s);
RtfOut(s);
end;
rng:=rng.next;
end;
// end of RTF
WriteOut('}');
RtfOut('}');
finally
fontTable.Free;
colorTable.Free;