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unit pentest;
{$mode objfpc}{$H+}
interface
uses
Classes, Forms, Graphics;
type
{ TfrmPen }
TfrmPen = class(TForm)
procedure FormPaint(Sender: TObject);
private
public
end;
var
frmPen: TfrmPen;
implementation
{$R *.lfm}
{ TfrmPen }
procedure TfrmPen.FormPaint(Sender: TObject);
var
MyBitmap: TBitmap;
MyLine: array[0..2] of TPoint;
begin
MyBitmap := TBitmap.Create;
try
{ Set a size for the image }
MyBitmap.Height := Height;// 150
MyBitmap.Width := Width;// 400
{ After memory has been reserved by setting the size
of the image, we can start drawing }
// Background
MyBitmap.Canvas.Brush.Color := clWhite;
MyBitmap.Canvas.Pen.Color := clWhite;
MyBitmap.Canvas.Rectangle(0, 0, Width, Height);
// Explaning text
MyBitmap.Canvas.TextOut(100, 5,
'Brush: bsClear Pen: Black');
// Pen styles
MyBitmap.Canvas.TextOut(25, 30, 'Pen styles:');
MyBitmap.Canvas.TextOut(25, 60, 'psSolid');
MyBitmap.Canvas.TextOut(25, 90, 'psDash');
MyBitmap.Canvas.TextOut(25, 120, 'psDot');
MyBitmap.Canvas.TextOut(25, 150, 'psDashDot');
MyBitmap.Canvas.TextOut(25, 180, 'psDashDotDot');
MyBitmap.Canvas.TextOut(25, 210, 'psClear');
MyBitmap.Canvas.TextOut(25, 240, 'psInsideframe');
MyBitmap.Canvas.TextOut(25, 270, 'psPattern');
MyBitmap.Canvas.Brush.Style := bsClear;
MyBitmap.Canvas.Pen.Color := clBlack;
MyBitmap.Canvas.Pen.Style := psSolid;
MyBitmap.Canvas.Rectangle(Bounds(125, 60, 50, 25));
MyBitmap.Canvas.Pen.Style := psDash;
MyBitmap.Canvas.Rectangle(Bounds(125, 90, 50, 25));
MyBitmap.Canvas.Pen.Style := psDot;
MyBitmap.Canvas.Rectangle(Bounds(125, 120, 50, 25));
MyBitmap.Canvas.Pen.Style := psDashDot;
MyBitmap.Canvas.Rectangle(Bounds(125, 150, 50, 25));
MyBitmap.Canvas.Pen.Style := psDashDotDot;
MyBitmap.Canvas.Rectangle(Bounds(125, 180, 50, 25));
MyBitmap.Canvas.Pen.Style := psClear;
MyBitmap.Canvas.Rectangle(Bounds(125, 210, 50, 25));
MyBitmap.Canvas.Pen.Style := psInsideframe;
MyBitmap.Canvas.Rectangle(Bounds(125, 240, 50, 25));
MyBitmap.Canvas.Pen.Style := psPattern;
MyBitmap.Canvas.Rectangle(Bounds(125, 270, 50, 25));
// Line widths
MyBitmap.Canvas.TextOut(200, 30, 'Pen Widths:');
MyBitmap.Canvas.Pen.Style := psSolid;
MyBitmap.Canvas.TextOut(200, 55, 'Width = 0');
MyBitmap.Canvas.Pen.Width := 0;
MyBitmap.Canvas.MoveTo(200, 75);
MyBitmap.Canvas.LineTo(280, 75);
MyBitmap.Canvas.MoveTo(200, 75);
MyBitmap.Canvas.LineTo(280, 85);
MyBitmap.Canvas.MoveTo(200, 75);
MyBitmap.Canvas.LineTo(280, 95);
MyBitmap.Canvas.MoveTo(200, 75);
MyBitmap.Canvas.LineTo(280, 105);
MyBitmap.Canvas.MoveTo(200, 75);
MyBitmap.Canvas.LineTo(280, 115);
MyBitmap.Canvas.MoveTo(200, 75);
MyBitmap.Canvas.LineTo(280, 125);
MyBitmap.Canvas.TextOut(300, 55, 'Width = 1');
MyBitmap.Canvas.Pen.Width := 1;
MyBitmap.Canvas.MoveTo(300, 75);
MyBitmap.Canvas.LineTo(380, 75);
MyBitmap.Canvas.MoveTo(300, 75);
MyBitmap.Canvas.LineTo(380, 85);
MyBitmap.Canvas.MoveTo(300, 75);
MyBitmap.Canvas.LineTo(380, 95);
MyBitmap.Canvas.MoveTo(300, 75);
MyBitmap.Canvas.LineTo(380, 105);
MyBitmap.Canvas.MoveTo(300, 75);
MyBitmap.Canvas.LineTo(380, 115);
MyBitmap.Canvas.MoveTo(300, 75);
MyBitmap.Canvas.LineTo(380, 125);
MyBitmap.Canvas.TextOut(400, 55, 'Width = 2');
MyBitmap.Canvas.Pen.Width := 2;
MyBitmap.Canvas.MoveTo(400, 75);
MyBitmap.Canvas.LineTo(480, 75);
MyBitmap.Canvas.MoveTo(400, 75);
MyBitmap.Canvas.LineTo(480, 85);
MyBitmap.Canvas.MoveTo(400, 75);
MyBitmap.Canvas.LineTo(480, 95);
MyBitmap.Canvas.MoveTo(400, 75);
MyBitmap.Canvas.LineTo(480, 105);
MyBitmap.Canvas.MoveTo(400, 75);
MyBitmap.Canvas.LineTo(480, 115);
MyBitmap.Canvas.MoveTo(400, 75);
MyBitmap.Canvas.LineTo(480, 125);
// End Caps
MyBitmap.Canvas.TextOut(200, 150, 'Pen End Caps:');
MyBitmap.Canvas.Pen.Width := 10;
MyBitmap.Canvas.TextOut(200, 175, 'pecRound');
MyBitmap.Canvas.Pen.EndCap := pecRound;
MyBitmap.Canvas.MoveTo(200, 200);
MyBitmap.Canvas.LineTo(280, 200);
MyBitmap.Canvas.TextOut(300, 175, 'pecSquare');
MyBitmap.Canvas.Pen.EndCap := pecSquare;
MyBitmap.Canvas.MoveTo(300, 200);
MyBitmap.Canvas.LineTo(380, 200);
MyBitmap.Canvas.TextOut(400, 175, 'pecFlat');
MyBitmap.Canvas.Pen.EndCap := pecFlat;
MyBitmap.Canvas.MoveTo(400, 200);
MyBitmap.Canvas.LineTo(480, 200);
// Join Style
MyBitmap.Canvas.TextOut(200, 225, 'Joint Style:');
MyBitmap.Canvas.Pen.Width := 10;
MyBitmap.Canvas.Pen.EndCap := pecRound;
MyBitmap.Canvas.TextOut(200, 250, 'pjsRound');
MyBitmap.Canvas.Pen.JoinStyle := pjsRound;
MyLine[0] := Point(200, 275);
MyLine[1] := Point(250, 275);
MyLine[2] := Point(250, 325);
MyBitmap.Canvas.Polyline(MyLine);
MyBitmap.Canvas.TextOut(300, 250, 'pjsBevel');
MyBitmap.Canvas.Pen.JoinStyle := pjsBevel;
MyLine[0] := Point(300, 275);
MyLine[1] := Point(350, 275);
MyLine[2] := Point(350, 325);
MyBitmap.Canvas.Polyline(MyLine);
MyBitmap.Canvas.TextOut(400, 250, 'pjsMiter');
MyBitmap.Canvas.Pen.JoinStyle := pjsMiter;
MyLine[0] := Point(400, 275);
MyLine[1] := Point(450, 275);
MyLine[2] := Point(450, 325);
MyBitmap.Canvas.Polyline(MyLine);
{ Draw the bitmap to the form }
Canvas.Draw(0, 0, MyBitmap);
finally
MyBitmap.Free;
end;
end;
end.
|
