Question

AutoSize text

Asked by: earlrainer

I am required to display a text centred in the middle on my form .
It is a plain form with nothing else except this text.
This text is random , sometimes it is 10 characters long and maximum 200 chars long
The issue here is to display the text with as big a fontsize as possible within the area available.
The form size is height - 400 and width - 700.
Text should be wrapped around if it exceeds the width of the form

How can I do this , I can use any component like label , memo etc but I am not getting quite how to resize the font size

I am sorry I dont have much points to offer

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Asked On
2008-02-12 at 22:43:26ID23158852
Topics

Delphi Programming

,

Pascal Programming Language

Participating Experts
1
Points
20
Comments
4

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Answers

 

by: kretzschmarPosted on 2008-02-13 at 00:29:55ID: 20882533

puh, 20 pts is a bit rare

nevertheless a small sample using the forms-canvas directly

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm1 = class(TForm)
    Button1: TButton;
    Edit1: TEdit;
    Label1: TLabel;
    procedure Button1Click(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
const
  widthLimit = 700;
  heightLimit = 400;
var
  tf : TTextFormat;
  tfCalc : TTextFormat;
  r : TRect;
  s : String;
begin
  tfCalc := [tfCalcRect, tfWordBreak,tfCenter,tfVerticalCenter,tfNoClip];
  tf := [tfWordBreak,tfCenter,tfVerticalCenter,tfNoClip];
  r := Rect(0,0,widthLimit,heightLimit);
  s := edit1.Text;
  canvas.Font.Size := 0;
  repeat
    canvas.Font.Size := canvas.Font.Size + 1;
    canvas.TextRect(r,s,tfCalc);
  until ((r.Right > widthLimit) or (r.Bottom > heightLimit));
  //use last Fitted
  canvas.Font.Size := canvas.Font.Size - 1;
  r := Rect(0,0,widthLimit,heightLimit);
  canvas.TextRect(r,s,tf);

end;


end.

meikl ;-)

 

by: earlrainerPosted on 2008-02-13 at 01:34:33ID: 31430427

Thanks meikl , sorry about the low points , had exhausted all mine

 

by: earlrainerPosted on 2008-02-13 at 01:36:46ID: 20882830

Thanks a lot Meikl

 

by: kretzschmarPosted on 2008-02-13 at 02:05:22ID: 20882959

glad u find it useful :-))

good luck again

meikl ;-)

20120131-EE-VQP-002

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