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More  than 1 line of strings in a cell (TStringGrid)

Posted on 1998-03-14
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Last Modified: 2010-04-06
I use D2.
I used #10#13 to display lines of strings in 1 cell
in a StringGtrid, but it doesn't work.
Can anyone of the experts help me???
Thanks.

from eabell
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Question by:eabell
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Waldek earned 200 total points
ID: 1360491
Try this . I find this in Unofficial Delphi Developer FAQ

From: delarosa@ix.netcom.com (Luis de la Rosa)

I have finally created a custom component, TWrapGrid that allows you to use
a TStringGrid, but also wrap the text in a cell. This is the beta version, so I
encourage you to experiment with it, try it out, and send me comments on
what you think of it. When you use it, remember to se the RowHeights (or
DefaultRowHeight) large enough so that when it wraps, it shows up in the
cell.

To install, copy the following text and paste it into a Unit. Save it under the
name 'Wrapgrid.PAS'. Then follow the directions I put in the header of the
component.

I'm also looking for feedback on this component, so please try it and tell me
what you think. Here is the code!


unit Wrapgrid;

interface

uses
  SysUtils, WinTypes, WinProcs, Messages, Classes, Graphics, Controls,
  Forms, Dialogs, Grids;

type
  TWrapGrid = class(TStringGrid)
  private
    { Private declarations }
  protected
    { Protected declarations }
    { This DrawCell procedure wraps text in the grid cell }
    procedure DrawCell(ACol, ARow : Longint; ARect : TRect;
      AState : TGridDrawState); override;
  public
    { Public declarations }
    { The Create procedure is overriden to use the DrawCell procedure by
         default }
    constructor Create(AOwner : TComponent); override;
  published
    { Published declarations }
  end;

procedure Register;

implementation

constructor TWrapGrid.Create(AOwner : TComponent);
begin
   { Create a TStringGrid }
   inherited Create(AOwner);

   { Make the drawing use our DrawCell procedure by default }
   DefaultDrawing := FALSE;
end;

{ This DrawCell procedure wraps text in the grid cell }
procedure TWrapGrid.DrawCell(ACol, ARow : Longint; ARect : TRect;
   AState : TGridDrawState);
var
   Sentence,                  { What is left in the cell to output }
   CurWord : String;          { The word we are currently outputting }
   SpacePos,                  { The position of the first space }
   CurX,                      { The x position of the 'cursor' }
   CurY : Integer;            { The y position of the 'cursor' }
   EndOfSentence : Boolean;   { Whether or not we are done outputting the cell }
begin
   { Initialize the font to be the control's font }
   Canvas.Font := Font;

   with Canvas do begin
      { If this is a fixed cell, then use the fixed color }
      if gdFixed in AState then begin
         Pen.Color   := FixedColor;
         Brush.Color := FixedColor;
      end
      { else, use the normal color }
      else begin
         Pen.Color   := Color;
         Brush.Color := Color;
      end;

      { Prepaint cell in cell color }
      Rectangle(ARect.Left, ARect.Top, ARect.Right, ARect.Bottom);
   end;

   { Start the drawing in the upper left corner of the cell }
   CurX := ARect.Left;
   CurY := ARect.Top;

   { Here we get the contents of the cell }
   Sentence := Cells[ACol, ARow];

   { for each word in the cell }
   EndOfSentence := FALSE;
   while (not EndOfSentence) do begin
      { to get the next word, we search for a space }
      SpacePos := Pos(' ', Sentence);
      if SpacePos > 0 then begin
         { get the current word plus the space }
         CurWord := Copy(Sentence, 0, SpacePos);

         { get the rest of the sentence }
         Sentence := Copy(Sentence, SpacePos + 1, Length(Sentence) - SpacePos);
      end
      else begin
         { this is the last word in the sentence }
         EndOfSentence := TRUE;
         CurWord := Sentence;
      end;

      with Canvas do begin
         { if the text goes outside the boundary of the cell }
         if (TextWidth(CurWord) + CurX) > ARect.Right then begin
            { wrap to the next line }
            CurY := CurY + TextHeight(CurWord);
            CurX := ARect.Left;
         end;

         { write out the word }
         TextOut(CurX, CurY, CurWord);
         { increment the x position of the cursor }
         CurX := CurX + TextWidth(CurWord);
      end;
   end;
end;

procedure Register;
begin
   { You can change Samples to whichever part of the Component Palette you want
     to install this component to }
   RegisterComponents('Samples', [TWrapGrid]);
end;

end.
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