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https://gitlab.com/freepascal.org/lazarus/lazarus.git
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80 lines
1.9 KiB
ObjectPascal
80 lines
1.9 KiB
ObjectPascal
unit LazSynGtk2IMM;
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{$mode objfpc}{$H+}
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interface
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uses
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{$ifdef LCLGtk2}
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gtk2, Gtk2Globals,
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{$endif}
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Classes, SysUtils, Messages, LMessages, LazSynIMMBase, SynEditKeyCmds;
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type
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{ LazSynImeGtk2 }
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LazSynImeGtk2 = class(LazSynIme)
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private
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FIMESelText: string;
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public
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procedure WMImeComposition(var Message: TMessage); override;
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end;
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implementation
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uses
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SynEdit;
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{ LazSynImeGtk2 }
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procedure LazSynImeGtk2.WMImeComposition(var Message: TMessage);
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{$IFDEF WITH_GTK2_IM}
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var
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IMStr:string;
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i:Integer;
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{$ENDIF}
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begin
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{$IFDEF WITH_GTK2_IM}
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if (not FriendEdit.ReadOnly) then
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begin
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if (Message.WParam and GTK_IM_FLAG_START<>0) then
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FIMESelText := FriendEdit.SelText;
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// to do : accurate candidate position
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// set candidate position
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if (Message.WParam and (GTK_IM_FLAG_START or GTK_IM_FLAG_PREEDIT))<>0 then
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IM_Context_Set_Cursor_Pos(FriendEdit.CaretXPix,FriendEdit.CaretYPix+FriendEdit.LineHeight);
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// valid string at composition & commit
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if Message.WParam and (GTK_IM_FLAG_COMMIT or GTK_IM_FLAG_PREEDIT)<>0 then
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begin
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// insert preedit or commit string
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IMStr:=pchar(Message.LParam);
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for i:=1 to Length(IMStr) do
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TSynEdit(FriendEdit).CommandProcessor(ecChar,IMStr[i],nil);
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// select last preedit
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if (Message.WParam and GTK_IM_FLAG_COMMIT=0) then
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begin
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if Length(IMStr)>0 then
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for i:=1 to Length(UTF8Decode(IMStr)) do
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TSynEdit(FriendEdit).CommandProcessor(ecSelLeft,#0,nil)
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end
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else
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FIMESelText:='';
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end;
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// end composition
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if (Message.WParam and GTK_IM_FLAG_END<>0) and (FIMESelText<>'') then
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begin
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TSynEdit(FriendEdit).ClearSelection;
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// restore selection before preedit.
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for i:=1 to Length(FIMESelText) do
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TSynEdit(FriendEdit).CommandProcessor(ecChar,FIMESelText[i],nil);
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end;
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end;
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{$ENDIF}
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end;
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end.
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