Re: Drag and Drop file into the table...

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Author

Message

CKC

Posted: 12/06/2002 20:52:22

Dear Sergey,

here is my solution to the problem. With my little function "IsCursorInsideTable"

I can get the table, the tablename and the row and column, no matter what

is inside

the cell of the table.

Best wishes

ckc

procedure TFrameOrderText.RVDragDrop(Sender, Source: TObject; X,Y: Integer);

var

Row,Col  : Integer;

ItemName : string;

table    : TRVTableItemInfo;

begin

MoveCaretTo(X,Y);

if IsCursorInsideTable(X,Y,ItemName,table,Row,Col) then begin

     table.cells[Row,Col].clear;

     table.cells[Row,Col].AddNL('test'+IntToStr(sn),0,0);

     inc(sn);

     rv.format;

end;

end;

function TFrameOrderText.IsCursorInsideTable(X,Y:integer;

   var ItemName : string;

   var table: TRVTableItemInfo; var Row,Col : integer) : boolean;

var ItemNo,ItemStyle,ACX,ACY :integer;

    PHandle  : THandle;

    PtInPoly : bool;

begin

result:=false;

ItemNo:=0;

while ItemNo<rv.ItemCount do begin

    ItemStyle:=rv.GetItemStyle(ItemNo);

    if ItemStyle=rvsTable then begin

       table := TRVTableItemInfo(rv.GetItem(ItemNo));

       if rv.GetItemClientCoords(ItemNo,ACX,ACY) then begin

          PHandle  := CreateRectRgn(ACX,ACY,ACX+table.Width,ACY+table.Height);

          PtInPoly := PtInRegion(PHandle,X,Y);

          if PtInPoly then

             if table.GetCellAt(X-ACX,Y-ACY,Row,Col) then begin

                ItemName:= rv.GetItemText(ItemNo);

                result  := true;

                ItemNo  := rv.ItemCount;

             end;

          DeleteObject(PHandle);  // remove handle

       end; // if rv.GetItemClientCoords(

    end; // if ItemStyle=rvsTable

    inc(ItemNo);

end; // while ItemNo<rv.ItemCount do

end;

"Sergey Tkachenko" <svt@trichview.com> wrote:

>When you finishes dragging, the caret is in the destination table.

>You can get it with GetCurrentItemEx method.

>

>

>> I use TRichViewEdit as an order form for a pharmacy interface. I drag

the

>text

>> from a TListBox.

>> Inside TRichViewEdit each row of a table represents a certain drug (only

>one

>> drug per row allowed).

>> When the DragDrop event occurs I need to know which table and which cell

>> contains the drug.

>

>

>