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richmemo: implement the win32 search, parially based on patch by Krzysztof Dibowski (#17388)

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git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@3772 8e941d3f-bd1b-0410-a28a-d453659cc2b4
This commit is contained in:
skalogryz
2014-11-24 07:59:03 +00:00
parent 6fa141025c
commit 3c86805627
2 changed files with 63 additions and 6 deletions
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15
components/richmemo/win32/win32richmemo.pas
View File

@ -98,6 +98,9 @@ type
const ANumber: TIntParaNumbering); override;
class procedure InDelText(const AWinControl: TWinControl; const TextUTF8: String; DstStart, DstLen: Integer); override;
class function Search(const AWinControl: TWinControl; const ANiddle: string;
const SearchOpts: TIntSearchOpt): Integer; override;
end;
implementation
@ -155,7 +158,7 @@ begin
if res>0 then begin
SetLength(w, res);
FillChar(t, sizeof(t), 0);
t.cb:=length(w)*sizeof(WideChar);
t.cb:=(length(w)+1)*sizeof(WideChar);
t.flags:=GT_DEFAULT;
t.codepage:=CP_WINUNICODE;
res:=SendMessageW(fHandle, EM_GETTEXTEX, WPARAM(@t), LPARAM(@w[1]));
@ -186,7 +189,7 @@ begin
if res>0 then begin
SetLength(s, res);
FillChar(t, sizeof(t), 0);
t.cb:=length(s);
t.cb:=length(s)+1;
t.flags:=GT_DEFAULT;
t.codepage:=CP_ACP;
res:=SendMessageW(fHandle, EM_GETTEXTEX, WPARAM(@t), LPARAM(@s[1]));
@ -586,8 +589,16 @@ end;
class procedure TWin32WSCustomRichMemo.InDelText(const AWinControl:TWinControl;
const TextUTF8:String;DstStart,DstLen:Integer);
begin
if not Assigned(RichEditManager) or not Assigned(AWinControl) then Exit;
RichEditManager.SetText(AWinControl.Handle,UTF8Decode(TextUTF8),DstStart,DstLen);
end;
class function TWin32WSCustomRichMemo.Search(const AWinControl: TWinControl;
const ANiddle: string; const SearchOpts: TIntSearchOpt): Integer;
begin
if not Assigned(RichEditManager) or not Assigned(AWinControl) then Exit;
Result:=RichEditManager.Find(AWinControl.Handle, UTF8Decode(ANiddle), SearchOpts);
end;
end.

54
components/richmemo/win32/win32richmemoproc.pas
View File

@ -159,6 +159,7 @@ type
class procedure SetText(RichEditWnd: Handle; const Text: WideString; TextStart, ReplaceLength: Integer); virtual;
class procedure GetPara2(RichEditWnd: Handle; TextStart: Integer; var para: PARAFORMAT2); virtual;
class procedure SetPara2(RichEditWnd: Handle; TextStart, TextLen: Integer; const para: PARAFORMAT2); virtual;
class function Find(RichEditWnd: THandle; const ANiddle: WideString; const ASearch: TIntSearchOpt): Integer; virtual;
end;
TRichManagerClass = class of TRichEditManager;
@ -187,11 +188,12 @@ end;
function InitRichEdit: Boolean;
begin
if GlobalRichClass = '' then begin
if LoadLibrary('Msftedit.dll') <> 0 then begin
if LoadLibrary('Msftedit.dll') <> 0 then begin
GlobalRichClass := 'RichEdit50W';
end else if LoadLibrary('RICHED20.DLL') <> 0 then begin
if UnicodeEnabledOS then GlobalRichClass := 'RichEdit20W'
else GlobalRichClass := 'RichEdit20A'
else
GlobalRichClass := 'RichEdit20A'
end else if LoadLibrary('RICHED32.DLL') <> 0 then begin
GlobalRichClass := 'RichEdit';
end;
@ -536,6 +538,52 @@ begin
SetSelection(RichEditWnd, s, l);
end;
class function TRichEditManager.Find(RichEditWnd: THandle;
const ANiddle: WideString; const ASearch: TIntSearchOpt): Integer;
var
fw: TFINDTEXTW;
fa: TFINDTEXTA;
opt: WParam;
txt: string;
mn, mx : Integer;
begin
if ANiddle='' then begin
Result:=-1;
Exit;
end;
opt:=0;
if not (soBackward in ASearch.Options) then opt:=FR_DOWN; // if not set, then search is backward
if soMatchCase in ASearch.Options then opt := opt or FR_MATCHCASE;
if soWholeWord in ASearch.Options then opt := opt or FR_WHOLEWORD;
mn := ASearch.start;
if soBackward in ASearch.Options then begin
if ASearch.len<0 then mx := 0
else begin
mx := ASearch.start-ASearch.len;
if mx < 0 then mx:=0;
end;
end else begin
if ASearch.len<0 then fw.chrg.cpMax := -1
else begin
mx := ASearch.start+ASearch.len;
if mx < 0 then mx:=-1;
end;
end;
if UnicodeEnabledOS then begin
fw.chrg.cpMin := mn;
fw.chrg.cpMax := mx;
fw.lpstrText := PWideChar(@ANiddle[1]);
Result := SendMessage(RichEditWnd, EM_FINDTEXTW, opt, LParam(@fw));
end else begin
fa.chrg.cpMin := mn;
fa.chrg.cpMax := mx;
txt:=ANiddle;
fa.lpstrText := PAnsiChar(@txt[1]);
Result := SendMessage(RichEditWnd, EM_FINDTEXT, opt, LParam(@fa));
end;
end;
function WinInsertImageFromFile (const ARichMemo: TCustomRichMemo; APos: Integer;
const FileNameUTF8: string;
const AImgSize: TSize): Boolean;
@ -549,8 +597,6 @@ var
Storage: IStorage;
Image: IOleObject;
Obj: TREOBJECT;
id: TGUID;
ImageLink: IOleObject;
sl, ss: Integer;
const