1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
{
fpGUI - Free Pascal GUI Library
Example: Display BMP file using the fpImg - Free Pascal Imaging Library
Copyright (C) 2000 - 2006 See the file AUTHORS.txt, included in this
distribution, for details of the copyright.
See the file COPYING.modifiedLGPL, included in this distribution,
for details about redistributing fpGUI.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
}
program Disp_BMP;
uses
Classes
,GFXBase
,GFXImpl
,fpImg
,BMPReader
,fpgfxpackage
;
type
TMainWindow = class
procedure Paint(Sender: TObject; const Rect: TRect);
private
Display: TDefDisplay;
Window: TGfxWindow;
Image: TGfxImage;
public
constructor Create(ADisplay: TDefDisplay);
destructor Destroy; override;
end;
constructor TMainWindow.Create(ADisplay: TDefDisplay);
begin
inherited Create;
Display := ADisplay;
Image := CreateImageFromFile(Display.DefaultScreen, TBMPReader, ParamStr(1));
Window := ADisplay.DefaultScreen.CreateWindow;
Window.Title := 'fpImg Bitmap Test';
Window.OnPaint := @Paint;
Window.SetFixedClientSize(Size(Image.Width, Image.Height));
Window.Show;
end;
destructor TMainWindow.Destroy;
begin
Image.Free;
inherited Destroy;
end;
procedure TMainWindow.Paint(Sender: TObject; const Rect: TRect);
begin
Window.Canvas.SetColor(colRed);
Window.Canvas.FillRect(Rect);
Window.Canvas.SetColor(colYellow);
Window.Canvas.DrawImage(Image, Point(0, 0));
end;
var
Display: TDefDisplay;
MainWindow: TMainWindow;
begin
if ParamCount <> 1 then
begin
WriteLn(StdErr, 'Please give the name of a BMP file as argument');
Halt(2);
end;
Display := TDefDisplay.Create;
MainWindow := TMainWindow.Create(Display);
Display.Run;
MainWindow.Free;
Display.Free;
end.
|
