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richmemo: correct selText issue for win32

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git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@3756 8e941d3f-bd1b-0410-a28a-d453659cc2b4
This commit is contained in:
skalogryz
2014-11-20 23:46:38 +00:00
parent 56614b93e6
commit 7b7b13b4c6
1 changed files with 93 additions and 2 deletions
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93
components/richmemo/win32/win32richmemo.pas
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@ -32,16 +32,37 @@ uses
LCLType, LCLIntf, LCLProc, WSLCLClasses,
Graphics, Controls, StdCtrls,
// Win32WidgetSet
Win32WSControls, Win32Int,
Win32WSControls, Win32Int, Win32WSStdCtrls, win32proc,
// RichMemo headers
RichMemo, WSRichMemo, Win32RichMemoProc;
type
{ TWin32RichMemoStringsW }
TWin32RichMemoStringsW = class(TWin32MemoStrings)
protected
fHandle : HWND;
function GetTextStr: string; override;
public
constructor Create(AHandle: HWND; TheOwner: TWinControl);
end;
{ TWin32RichMemoStringsA }
TWin32RichMemoStringsA = class(TWin32MemoStrings)
protected
fHandle : HWND;
function GetTextStr: string; override;
public
constructor Create(AHandle: HWND; TheOwner: TWinControl);
end;
{ TWin32WSCustomRichMemo }
TWin32WSCustomRichMemo = class(TWSCustomRichMemo)
published
class function GetStrings(const ACustomMemo: TCustomMemo): TStrings; override;
class procedure SetColor(const AWinControl: TWinControl); override;
class procedure SetSelStart(const ACustomEdit: TCustomEdit; NewStart: integer); override;
@ -113,8 +134,78 @@ begin
Result := WindowProc(Window, Msg, WParam, LParam);
end;
{ TWin32RichMemoStringsW }
constructor TWin32RichMemoStringsW.Create(AHandle: HWND; TheOwner: TWinControl);
begin
inherited Create(AHandle, TheOwner);
fHandle:=AHandle;
end;
function TWin32RichMemoStringsW.GetTextStr: string;
var
p : GETTEXTLENGTHEX;
t : GETTEXTEX;
res : Integer;
w : WideString;
begin
fillchar(p, sizeof(p), 0);
p.flags:=GTL_DEFAULT or GTL_PRECISE or GTL_NUMCHARS;
res := SendMessageW(fHandle, EM_GETTEXTLENGTHEX, WPARAM(@P), CP_WINUNICODE);
if res>0 then begin
SetLength(w, res);
FillChar(t, sizeof(t), 0);
t.cb:=length(w)*sizeof(WideChar);
t.flags:=GT_DEFAULT;
t.codepage:=CP_WINUNICODE;
res:=SendMessageW(fHandle, EM_GETTEXTEX, WPARAM(@t), LPARAM(@w[1]));
Result:=UTF8Encode(w);
end else
Result:='';
end;
{ TWin32RichMemoStringsA }
constructor TWin32RichMemoStringsA.Create(AHandle: HWND; TheOwner: TWinControl);
begin
inherited Create(AHandle, TheOwner);
fHandle:=AHandle;
end;
function TWin32RichMemoStringsA.GetTextStr: string;
var
p : GETTEXTLENGTHEX;
t : GETTEXTEX;
res : Integer;
s : WideString;
begin
fillchar(p, sizeof(p), 0);
p.flags:=GTL_DEFAULT or GTL_PRECISE or GTL_NUMBYTES;
res := SendMessageW(fHandle, EM_GETTEXTLENGTHEX, WPARAM(@P), CP_ACP);
if res>0 then begin
SetLength(s, res);
FillChar(t, sizeof(t), 0);
t.cb:=length(s);
t.flags:=GT_DEFAULT;
t.codepage:=CP_ACP;
res:=SendMessageW(fHandle, EM_GETTEXTEX, WPARAM(@t), LPARAM(@s[1]));
Result:=AnsiToUtf8(s);
end else
Result:='';
end;
{ TWin32WSCustomRichMemo }
class function TWin32WSCustomRichMemo.GetStrings(const ACustomMemo: TCustomMemo
): TStrings;
begin
if UnicodeEnabledOS then
Result := TWin32RichMemoStringsW.Create(ACustomMemo.Handle, ACustomMemo)
else
Result := TWin32RichMemoStringsA.Create(ACustomMemo.Handle, ACustomMemo);
end;
class procedure TWin32WSCustomRichMemo.SetColor(const AWinControl: TWinControl);
begin
// this methos is implemented, because Win32RichMemo doesn't use