Lazarus
Home
Help
TinyPortal
Search
Login
Register
Lazarus
»
Forum
»
Programming
»
Graphics and Multimedia
»
Graphics
»
BGRABitmap and LazPaint
»
[SOLVED] Draw repeated
Free Pascal
Website
Downloads
Wiki
Documentation
Bugtracker
Mailing List
Lazarus
Website
Downloads (Laz+FPC)
Packages (OPM)
FAQ
Wiki
Documentation (RTL/FCL/LCL)
Bugtracker
CCR Bugs
IRC channel
GIT
Mailing List
Other languages
Foundation
Website
Useful Wiki Links
Project Roadmap
Getting the Source
Screenshots
How to use the forum
About donations (wiki)
Bookstore
Computer Math and Games in Pascal
(preview)
Lazarus Handbook
Search
Advanced search
Recent
Find child controls by na...
by
Handoko
[
Today
at 04:17:05 am]
Demoscene The Champs Crac...
by
Gigatron
[
Today
at 02:26:07 am]
Linux Workspaces -- StayO...
by
dbannon
[
Today
at 02:13:13 am]
Assign (textfile) not com...
by
teresa
[
Today
at 01:56:13 am]
How to: create DLL file f...
by
KodeZwerg
[
Today
at 12:57:56 am]
Slow copying of small str...
by
jamie
[
Today
at 12:37:04 am]
location of non visual co...
by
VisualLab
[April 17, 2024, 11:58:55 pm]
For-in loop over constant...
by
Joanna
[April 17, 2024, 11:57:15 pm]
Lazarus editor feature re...
by
440bx
[April 17, 2024, 11:49:08 pm]
InstallAware Using Lazaru...
by
VisualLab
[April 17, 2024, 11:08:24 pm]
How would you define a fi...
by
wp
[April 17, 2024, 11:04:00 pm]
Directx9 with mylogo insi...
by
KodeZwerg
[April 17, 2024, 11:03:54 pm]
Lazarus for Windows on aa...
by
Wallaby
[April 17, 2024, 10:25:46 pm]
Azure sql database will n...
by
dseligo
[April 17, 2024, 10:15:27 pm]
[SOLVED] TDbf table, Leve...
by
1HuntnMan
[April 17, 2024, 10:03:16 pm]
Doomed name
by
Martin_fr
[April 17, 2024, 09:09:52 pm]
lazarus-project_3.2.0-0_a...
by
midigark
[April 17, 2024, 06:09:40 pm]
Text orientation in TMemo...
by
wp
[April 17, 2024, 05:51:25 pm]
TBGRABitmap.TextSize retu...
by
circular
[April 17, 2024, 05:24:04 pm]
BUG REPORT: Unable to gen...
by
gasensor
[April 17, 2024, 05:10:20 pm]
[solved]FP IDE(FP.exe) fa...
by
gasensor
[April 17, 2024, 04:45:40 pm]
Inherits forms and releas...
by
ASerge
[April 17, 2024, 03:37:45 pm]
The weird Rewrite bug
by
Kays
[April 17, 2024, 01:23:40 pm]
FpDebug unexpected Assemb...
by
440bx
[April 17, 2024, 12:54:43 pm]
Arabic text, problem on L...
by
Zaher
[April 17, 2024, 12:34:05 pm]
« previous
next »
Print
Pages: [
1
]
Author
Topic: [SOLVED] Draw repeated (Read 4661 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: 4220
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: 4220
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: 4220
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
Print
Pages: [
1
]
« previous
next »
Lazarus
»
Forum
»
Programming
»
Graphics and Multimedia
»
Graphics
»
BGRABitmap and LazPaint
»
[SOLVED] Draw repeated
TinyPortal
© 2005-2018