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| unit Unit4;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ExtCtrls, StdCtrls, ExtDlgs, ComCtrls;
type
TForm4 = class(TForm)
Image1: TImage;
Button1: TButton;
Button2: TButton;
ColorDialog1: TColorDialog;
ColorDialog2: TColorDialog;
Label1: TLabel;
Button3: TButton;
Button4: TButton;
OpenPictureDialog1: TOpenPictureDialog;
SavePictureDialog1: TSavePictureDialog;
Button5: TButton;
Edit2: TEdit;
UpDown1: TUpDown;
RadioGroup1: TRadioGroup;
RadioGroup2: TRadioGroup;
RadioGroup3: TRadioGroup;
Edit1: TEdit;
Button6: TButton;
Panel1: TPanel;
Panel2: TPanel;
procedure Image1MouseDown(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
procedure Image1MouseUp(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
procedure Button3Click(Sender: TObject);
procedure Button4Click(Sender: TObject);
procedure Button5Click(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure Button6Click(Sender: TObject);
procedure Image1MouseMove(Sender: TObject; Shift: TShiftState; X,
Y: Integer);
private
{ Private declarations }
isEraser,UseEraser:Boolean;
public
{ Public declarations }
end;
var
Form4: TForm4;
implementation
uses Unit1;
var x1,y1:integer; c:integer;
{$R *.dfm}
procedure ris(x,y,a:integer;cv:tcanvas);
var b:integer;
begin
end;
procedure linija(x,y:integer;cv:tcanvas);
var dx,dy:integer;
begin
with cv do
begin
moveto(x1,y1);
lineto(x,y);
end;
end;
procedure TForm4.Image1MouseDown(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
begin
if iseraser then
begin
image1.Canvas.Brush.Color:=clwhite;
image1.Canvas.Brush.Style:=bssolid;
useeraser:=true;
end
else
begin
x1:=x;
y1:=y;
end;
end;
procedure TForm4.Image1MouseUp(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
begin
image1.Canvas.Pen.Width:=strtoint(edit2.Text);
case radiogroup1.ItemIndex of
0:linija(x,y,image1.Canvas);
1:image1.canvas.Rectangle(x1,y1,x,y);
2:image1.Canvas.Ellipse(x1,y1,x,y);
3:Image1.Canvas.Polygon([point(x1,y1),point(x1+10,y1+30),point(x1+40,y1+40),point(x1+10,y1+50),point(x1,y1+80),
point(x1-10,y1+50),point(x1-40,y1+40),point(x1-10,y1+30),point(x1,y1)]);
4:image1.Canvas.TextOut(x,y,''+edit1.Text);
end;
case radiogroup2.ItemIndex of
0: image1.Canvas.Pen.Style:=pssolid;
1: image1.Canvas.Pen.Style:=psdot;
end;
case radiogroup3.ItemIndex of
0: image1.Canvas.Brush.Style:=bssolid;
1: image1.Canvas.Brush.Style:=bsbdiagonal;
2: image1.Canvas.Brush.Style:=bsvertical;
3: image1.Canvas.Brush.Style:=bshorizontal;
end;
begin
if useeraser then
begin
useeraser:=false;
exit;
end;
end;
end;
procedure TForm4.Button3Click(Sender: TObject);
begin
if openpicturedialog1.Execute then
Image1.Picture.LoadFromFile(OpenPicturedialog1.FileName);
end;
procedure TForm4.Button4Click(Sender: TObject);
begin
if SavePictureDialog1.Execute then
begin
image1.Picture.SaveToFile(SavePictureDialog1.FileName+'.jpg');
end;
end;
procedure TForm4.Button5Click(Sender: TObject);
begin
//image1.Canvas.Fillrect(Clientrect);
image1.Canvas.Pen.width:=1;
image1.Canvas.Brush.Color:=clwhite;
image1.Canvas.Rectangle(-5,-5,image1.Width+5,image1.Height+5);
end;
procedure TForm4.Button1Click(Sender: TObject);
begin
if colordialog1.Execute then
begin
image1.Canvas.Font.Color:=colordialog1.Color;
Panel1.Color:=ColorDialog1.Color;
image1.Canvas.Pen.Color:=colordialog1.color;
end;
end;
procedure TForm4.Button2Click(Sender: TObject);
begin
if colordialog2.Execute then
begin
image1.Canvas.Brush.Color:=colordialog2.Color;
Panel2.Color:=colordialog2.Color;
end;
end;
procedure TForm4.FormCreate(Sender: TObject);
begin
Screen.Cursors[5] := LoadCursorFromFile('no.cur');
end;
procedure TForm4.Button6Click(Sender: TObject);
begin
if isEraser
then Image1.Cursor := 1
else Image1.Cursor := 5;
isEraser := not isEraser
end;
procedure TForm4.Image1MouseMove(Sender: TObject; Shift: TShiftState; X,
Y: Integer);
var wid:integer;
begin
if useeraser
then
begin
wid:=strtoint(edit2.Text)div 2;
image1.Canvas.FillRect(Rect(x-wid,y-wid,x+wid,y+wid));
end;
end;
end. |
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