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 How to color the whole line with OnGetTextEx		  New Topic  Reply to Topic
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swestner

17 Posts
Posted - Dec 03 2015 :  03:01:44  Show Profile  Reply
Hello,

I use OnGetTextEx in TImageENMView to paint the background of the bottom-text in red.

procedure TfamScanner.ImageViewGetTextEx(Sender: TObject; Index: integer; Position: TIEMTextPos;
var Text: WideString; Font: TFont; var BackgroundStyle: TBrushStyle; var BackgroundColor: TColor; var TruncSide: TIEMTruncSide);
begin
if Position = iemtpBottom then begin
if Text <> '' then begin
BackgroundColor := clRed;
BackgroundStyle := bsSolid;
end;
end;
end;

With previous versions of ImageEn the whole line under the image was painted red. With the actual version only the background of the text is painted red.

How could I paint the whole text-line under the image with background-red?

Please see the attached file. The red background of the text is painted but I want the area which is blue in red too.

Greetings

Stefan

xequte

39053 Posts
Posted - Dec 03 2015 :  19:26:24  Show Profile  Reply
Hi Stefan

You could custom draw the cell, but probably the easiest way is simply to pad the text to the width of the cell.

procedure TMainForm.ImageEnMView1GetTextEx(Sender: TObject; Index: Integer; Position: TIEMTextPos; var Text: WideString; Font: TFont; var
    BackgroundStyle: TBrushStyle; var BackgroundColor: TColor; var TruncSide: TIEMTruncSide);
var
  iTextWidth: Integer;
  aBMP: TBitmap;
begin
  BackgroundColor := clRed;
  BackgroundStyle := bsSolid;

  // Expand text to width of the thumbnail cell
  aBMP := TBitmap.create;
  aBMP.Canvas.Font.Assign( Font );
  iTextWidth := aBMP.Canvas.TextWidth( ' ' + Text + ' ' );
  while iTextWidth < ImageEnMView1.ThumbWidth - 2 * ImageEnMView1.TextMargin - 2 * ImageEnMView1.HorizBorder do
  begin
    Text := ' ' + Text + ' ';
    iTextWidth := aBMP.Canvas.TextWidth( ' ' + Text + ' ' );
  end;
  aBMP.Free;
end;


Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
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