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[SOLVED] Draw repeated
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Topic: [SOLVED] Draw repeated (Read 4681 times)
Dibo
Hero Member
Posts: 1048
[SOLVED] Draw repeated
«
on:
September 26, 2012, 07:21:48 pm »
Hi,
I'm wondering. Exists any DrawRepeated method in bgrabitmap? I have small pattern and want fill it on whole canvas. I know how to do it manually but maybe BGRABitmap have this funcionality
Regards
«
Last Edit: October 02, 2012, 07:13:28 pm by Dibo
»
Logged
lainz
Guest
Re: Draw repeated
«
Reply #1 on:
September 26, 2012, 09:51:13 pm »
procedure Fill(texture: IBGRAScanner; mode: TDrawMode); override;
Logged
circular
Hero Member
Posts: 4224
Re: Draw repeated
«
Reply #2 on:
September 26, 2012, 10:33:25 pm »
Yes, and you can draw any shape (FillRect, FillPoly, etc.) with a texture as a parameter.
Logged
Conscience is the debugger of the mind
circular
Hero Member
Posts: 4224
Re: Draw repeated
«
Reply #3 on:
September 26, 2012, 10:43:31 pm »
And you can even use scanners to distort the result. See :
http://wiki.freepascal.org/BGRABitmap_tutorial_11
Logged
Conscience is the debugger of the mind
Dibo
Hero Member
Posts: 1048
Re: Draw repeated
«
Reply #4 on:
October 02, 2012, 07:13:16 pm »
Thanks!
BTW: What is in TBGRABitmap.Bitmap? I created small pattern and want use it as a brush in Canvas.Brush.Bitmap to speed up fill canvas. Look at
b
type:
This code work:
Code: Pascal
[Select]
[+]
[-]
procedure
TForm1
.
FormPaint
(
Sender
:
TObject
)
;
var
b
:
TBitmap
;
x
,
y
,
t
:
Integer
;
begin
t
:
=
GetTickCount
;
b
:
=
TBitmap
.
Create
;
b
.
SetSize
(
5
,
5
)
;
for
x
:
=
0
to
b
.
Width
-
1
do
for
y
:
=
0
to
b
.
Height
-
1
do
if
(
(
x
+
y
)
mod
5
=
0
)
or
(
(
y
-
x
)
mod
5
=
0
)
then
b
.
Canvas
.
Pixels
[
x
,
y
]
:
=
RGBToColor
(
0
,
0
,
0
)
// Black
else
b
.
Canvas
.
Pixels
[
x
,
y
]
:
=
RGBToColor
(
40
,
40
,
40
)
;
// Some dark shade of gray
Canvas
.
Brush
.
Bitmap
:
=
b
;
Canvas
.
FillRect
(
ClientRect
)
;
Canvas
.
Brush
.
Bitmap
:
=
nil
;
b
.
Free
;
Self
.
Caption
:
=
IntToStr
(
GetTickCount
-
t
)
;
end
;
And this (with TBGRABitmap) doesn't:
Code: Pascal
[Select]
[+]
[-]
procedure
TForm1
.
FormPaint
(
Sender
:
TObject
)
;
var
b
,
bmp
:
TBGRABitmap
;
x
,
y
,
t
:
Integer
;
begin
t
:
=
GetTickCount
;
b
:
=
TBGRABitmap
.
Create
(
5
,
5
)
;
for
x
:
=
0
to
b
.
Width
-
1
do
for
y
:
=
0
to
b
.
Height
-
1
do
if
(
(
x
+
y
)
mod
5
=
0
)
or
(
(
y
-
x
)
mod
5
=
0
)
then
b
.
CanvasBGRA
.
Pixels
[
x
,
y
]
:
=
RGBToColor
(
0
,
0
,
0
)
// Black
else
b
.
CanvasBGRA
.
Pixels
[
x
,
y
]
:
=
RGBToColor
(
40
,
40
,
40
)
;
// Some dark shade of gray
b
.
InvalidateBitmap
;
Canvas
.
Brush
.
Bitmap
:
=
b
.
Bitmap
;
Canvas
.
FillRect
(
ClientRect
)
;
Canvas
.
Brush
.
Bitmap
:
=
nil
;
b
.
Free
;
Self
.
Caption
:
=
IntToStr
(
GetTickCount
-
t
)
;
end
;
«
Last Edit: October 02, 2012, 07:50:54 pm by Dibo
»
Logged
circular
Hero Member
Posts: 4224
Re: Draw repeated
«
Reply #5 on:
October 02, 2012, 10:09:13 pm »
Quote from: Dibo on October 02, 2012, 07:13:16 pm
Thanks!
BTW: What is in TBGRABitmap.Bitmap?
It should be a TBitmap containing the current bitmap.
I dont know why it does not work. What if you use SetPixel instead ? And MakeBitmapCopy instead of Bitmap ?
Logged
Conscience is the debugger of the mind
Dibo
Hero Member
Posts: 1048
Re: [SOLVED] Draw repeated
«
Reply #6 on:
October 02, 2012, 10:38:05 pm »
MakeBitmapCopy solved problem. Thanks!
Logged
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[SOLVED] Draw repeated
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