Colour pinstripe/Display
You are encouraged to solve this task according to the task description, using any language you may know.
The task is to create 1 pixel wide coloured vertical pinstripes with a sufficient number of pinstripes to span the entire width of the graphics display.
The pinstripes should either follow the system palette sequence, or a sequence that includes:
black, red, green, blue, magenta, cyan, yellow, and white:
- after filling the top quarter, switch to a wider 2 pixel wide vertical pinstripe pattern,
- halfway down the display, switch to 3 pixel wide vertical pinstripe,
- finally to a 4 pixels wide vertical pinstripe for the last quarter of the display.
- See also
6502 Assembly
Output can be seen by copying and pasting this code into the code editor, then clicking "Assemble," then "Run."
define color $00
define looptemp $01
loop_1wide:
lda color
sta $0200,x
inc color
inx
bne loop_1wide
loop_2wide:
lda color
sta $0300,x
inx
sta $0300,x
inc color
inx
bne loop_2wide
lda #0
tax
tay
sta color
sta looptemp ;reset ram
loop_3wide:
lda color
sta $0400,x
inc looptemp
inx
sta $0400,x
inc looptemp
inx
sta $0400,x
inc looptemp
inc color
inx
lda looptemp
cmp #$1e
bne loop_3wide
lda color ;loop overhead
sta $0400,x ;can't fit all of this stripe.
;two columns will have to do.
inx
lda color
sta $0400,x
inx
lda #0
sta color
sta looptemp ;reset color and looptemp
iny
cpy #$08 ;check secondary loop counter
bne loop_3wide
lda #0
tax
tay
sta color
sta looptemp ;reset ram
loop_4wide:
lda color
sta $0500,x
inx
inc looptemp
sta $0500,x
inx
inc looptemp
sta $0500,x
inx
inc looptemp
sta $0500,x
inc color
inc looptemp
inx
lda looptemp
cmp #$20
bne loop_4wide
lda #0
sta looptemp
sta color
iny
cpy #$8
bcc loop_4wide
brk ;program end
Action!
PROC Main()
BYTE
i,
CH=$02FC, ;Internal hardware value for last key pressed
PALNTSC=$D014, ;To check if PAL or NTSC system is used
PCOLR0=$02C0,PCOLR1=$02C1,
PCOLR2=$02C2,PCOLR3=$02C3,
COLOR0=$02C4,COLOR1=$02C5,
COLOR2=$02C6,COLOR3=$02C7,
COLOR4=$02C8
Graphics(10)
PCOLR0=$04 ;gray
PCOLR1=$00 ;black
IF PALNTSC=15 THEN
PCOLR2=$42 ;red for NTSC
PCOLR3=$C6 ;green for NTSC
COLOR0=$84 ;blue for NTSC
COLOR1=$66 ;magenta for NTSC
COLOR2=$A6 ;cyan for NTSC
COLOR3=$FC ;yellow for NTSC
ELSE
PCOLR2=$22 ;red for PAL
PCOLR3=$B6 ;green for PAL
COLOR0=$74 ;blue for PAL
COLOR1=$48 ;magenta for PAL
COLOR2=$96 ;cyan for PAL
COLOR3=$EC ;yellow for PAL
FI
COLOR4=$0F ;white
FOR i=0 TO 79
DO
Color=i MOD 8+1
Plot(i,0) DrawTo(i,47)
Color=i/2 MOD 8+1
Plot(i,48) DrawTo(i,95)
Color=i/3 MOD 8+1
Plot(i,96) DrawTo(i,143)
Color=i/4 MOD 8+1
Plot(i,144) DrawTo(i,191)
OD
DO UNTIL CH#$FF OD
CH=$FF
RETURN
- Output:
Screenshot from Atari 8-bit computer
ActionScript
package {
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Sprite;
import flash.events.Event;
public class ColourPinstripe extends Sprite {
public function ColourPinstripe():void {
if (stage) init();
else addEventListener(Event.ADDED_TO_STAGE, init);
}
private function init(e:Event = null):void {
var colours:Array = [ 0xFF000000, 0xFFFF0000, 0xFF00FF00, 0xFF0000FF, 0xFFFF00FF, 0xFF00FFFF, 0xFFFFFF00, 0xFFFFFFFF ];
var data:BitmapData = new BitmapData(stage.stageWidth, stage.stageHeight, false, 0xFFFFFFFF);
data.lock();
var w:uint = data.width, h:uint = data.height / 4;
var x:uint, y:uint = 0, i:uint, px:uint, colourIndex:uint, colour:uint, maxy:uint = h;
for ( i = 1; i <= 4; i++ ) {
for ( ; y < maxy; y++ ) {
colour = 0xFF000000;
colourIndex = 0;
px = 1;
for ( x = 0; x < w; x++ ) {
if ( px == i ) {
colourIndex = (colourIndex > 7) ? 0 : colourIndex + 1;
colour = colours[colourIndex];
px = 1;
}
else px++;
data.setPixel32(x, y, colour);
}
}
maxy += h;
}
data.unlock();
addChild(new Bitmap(data));
}
}
}
Ada
with SDL.Video.Windows.Makers;
with SDL.Video.Renderers.Makers;
with SDL.Video.Palettes;
with SDL.Events.Events;
procedure Colour_Pinstripe_Display is
Width : constant := 1_200;
Height : constant := 800;
Window : SDL.Video.Windows.Window;
Renderer : SDL.Video.Renderers.Renderer;
Event : SDL.Events.Events.Events;
procedure Draw_Pinstripe (Line_Width : in Integer;
Line_Height : in Integer;
Screen_Width : in Integer;
Y : in Integer)
is
type Colour_Range is (Black, Red, Green, Blue, Magenta, Cyan, Yellow, White);
Colours : constant array (Colour_Range) of SDL.Video.Palettes.Colour
:= (Black => (0, 0, 0, 255), Red => (255, 0, 0, 255),
Green => (0, 255, 0, 255), Blue => (0, 0, 255, 255),
Magenta => (255, 0, 255, 255), Cyan => (0, 255, 255, 255),
Yellow => (255, 255, 0, 255), White => (255, 255, 255, 255));
Col : Colour_Range := Colour_Range'First;
Count : constant Integer := Screen_Width / Line_Width;
begin
for A in 0 .. Count loop
Renderer.Set_Draw_Colour (Colour => Colours (Col));
Renderer.Fill (Rectangle => (X => SDL.C.int (A * Line_Width), Y => SDL.C.int (Y),
Width => SDL.C.int (Line_Width),
Height => SDL.C.int (Line_Height)));
Col := (if Col = Colour_Range'Last
then Colour_Range'First
else Colour_Range'Succ (Col));
end loop;
end Draw_Pinstripe;
procedure Wait is
use type SDL.Events.Event_Types;
begin
loop
while SDL.Events.Events.Poll (Event) loop
if Event.Common.Event_Type = SDL.Events.Quit then
return;
end if;
end loop;
delay 0.100;
end loop;
end Wait;
begin
if not SDL.Initialise (Flags => SDL.Enable_Screen) then
return;
end if;
SDL.Video.Windows.Makers.Create (Win => Window,
Title => "Pinstripe",
Position => SDL.Natural_Coordinates'(X => 10, Y => 10),
Size => SDL.Positive_Sizes'(Width, Height),
Flags => 0);
SDL.Video.Renderers.Makers.Create (Renderer, Window.Get_Surface);
Draw_Pinstripe (1, Height / 4, Width, 0);
Draw_Pinstripe (2, Height / 4, Width, 200);
Draw_Pinstripe (3, Height / 4, Width, 400);
Draw_Pinstripe (4, Height / 4, Width, 600);
Window.Update_Surface;
Wait;
Window.Finalize;
SDL.Finalise;
end Colour_Pinstripe_Display;
ARM Assembly
Assembled using VASM (which explains why the syntax is different from how you might expect if you're used to the GNU Assembler) This uses the Game Boy Advance's bitmap screen modes; no pre-defined tilemaps are needed.
.org 0x08000000 ;cartridge ROM begins here
b ProgramStart ;branch around the cartridge header
;;;; cartridge header goes here
.equ SCREEN_WIDTH,240 ;some labels for convenience
.equ SCREEN_HEIGHT,160
ProgramStart:
mov sp,#0x03000000 ;set up stack pointer (we won't be using it but it's a good practice to do so anyway
mov r4,#0x04000000 ;DISPCNT (LCD Control Register)
mov r2,#0x403 ;4= Layer 2 on / 3= ScreenMode 3 (Bitmap Graphics, vram at 0x06000000)
str r2,[r4] ;now the screen is visible.
mov r0,#0x06000000 ;VRAM BASE (2 BYTES PER PIXEL)
mov r1,#0 ;COLOR TO STORE (INIT TO ZERO, WILL GET FILLED IN LATER)
adr r4,palArray ;get address of palette
mov r5,#0 ;index into palArray
mov r6,#19200 ;this is one quarter of the screen
add r7,r0,r6 ;MOV R7, #0x06004B00
add r8,r7,r6 ;MOV R8, #0x06009600
add r9,r8,r6 ;MOV R9, #0x0600E100
add r10,r9,r6 ;MOV R10,#0x06012C00
loop_pinstripe_firstQuarter:
ldrH r1,[r4,r5]
strH r1,[r0],#2 ;store into video memory and post-inc by 2.
add r5,r5,#2 ;next color in palette
and r5,r5,#0x0F ;prevents indexing out of bounds
cmp r0,r7 ;have we reached the end of this quarter of the screen?
blt loop_pinstripe_firstQuarter ;if not, keep drawing
loop_pinstripe_secondQuarter:
ldrH r1,[r4,r5]
strH r1,[r0],#2 ;post-inc by 2 after the store
strH r1,[r0],#2 ;post-inc by 2 after the store
add r5,r5,#2
and r5,r5,#0x0F
cmp r0,r8
blt loop_pinstripe_secondQuarter
loop_pinstripe_thirdQuarter:
ldrH r1,[r4,r5]
strH r1,[r0],#2 ;post-inc by 2 after the store
strH r1,[r0],#2
strH r1,[r0],#2
add r5,r5,#2
and r5,r5,#0x0F
cmp r0,r9
blt loop_pinstripe_thirdQuarter
; the last quarter works differently. We'll need to use a different
; loop counter to get the last pinstripe
mov r2,#SCREEN_WIDTH/4 ;inner loop counter
mov r3,#48 ;outer loop counter
loop_pinstripe_lastQuarter:
ldrH r1,[r4,r5]
strH r1,[r0],#2
strH r1,[r0],#2
strH r1,[r0],#2
strH r1,[r0],#2
add r5,r5,#2
and r5,r5,#0x0F
subs r2,r2,#1
bne loop_pinstripe_lastQuarter
mov r5,#0 ;reset the palette pointer
mov r2,#SCREEN_WIDTH/4 ;reset the inner loop counter
subs r3,r3,#1 ;decrement the outer loop counter
bne loop_pinstripe_lastQuarter ;if we're not done, keep going
forever:
b forever ;end of program
palArray: ;GAME BOY ADVANCE USES 15-BIT COLOR. WE WON'T USE THE TOP BIT.
.word 0x0000 ;black
.word 0b0000000000011111 ;red
.word 0b0000001111100000 ;green
.word 0b0111110000000000 ;blue
.word 0b0111110000011111 ;magenta
.word 0b0111111111100000 ;cyan
.word 0b0000001111111111 ;yellow
.word 0x7FFF ;white
- Output:
Picture of output (I can't get Rosetta Code's file uploading to work)
AutoHotkey
Requires the GDI+ standard library: http://www.autohotkey.com/forum/viewtopic.php?t=32238
It is worth noting that this fills the whole screen; press Esc to exit.
h := A_ScreenHeight
w := A_ScreenWidth
pToken := gdip_Startup()
hdc := CreateCompatibleDC()
hbm := CreateDIBSection(w, h)
obm := SelectObject(hdc, hbm)
G := Gdip_GraphicsFromHDC(hdc)
OnExit, Exit
Gui -Caption +E0x80000 +LastFound +OwnDialogs +Owner +AlwaysOnTop
Gui Show, NA
hwnd := WinExist()
colors := [0xFF000000, 0xFFFF0000, 0xFF00FF00, 0xFF0000FF
, 0xFFFF00FF, 0xFF00FFFF, 0xFFFFFF00, 0xFFFFFFFF] ; ARGB
pBrush := []
Loop % colors.MaxIndex()
pBrush[A_Index] := Gdip_BrushCreateSolid(colors[A_Index])
Loop 4
{
n := A_Index
Loop % w
Gdip_FillRectangle(G, pBrush[Mod(A_Index-1, colors.MaxIndex())+1]
, A_Index*n-n, (n-1)*h/4, n, h/4)
}
UpdateLayeredWindow(hwnd, hdc, 0, 0, W, H)
Loop % colors.MaxIndex()
Gdip_DeleteBrush(pBrush[A_Index])
SelectObject(hdc, obm)
DeleteObject(hbm)
DeleteDC(hdc)
Gdip_DeleteGraphics(G)
Return
Esc::
Exit:
Gdip_Shutdown(pToken)
ExitApp
BASIC
BASIC256
w = 640 : h = 480
graphsize w, h
dim k = {black, red, green, blue, purple, cyan, yellow, white}
h /= 4
for i = 1 to 4
col = 0
y = (i-1) * h
for x = 1 to w step i
if col mod 8 = 0 then col = 0
colour k[col]
rect (x, y, x + i, y + h)
col += 1
next x
next i
BBC BASIC
SW_MAXIMIZE = 3
SYS "ShowWindow", @hwnd%, SW_MAXIMIZE
VDU 26
W% = @vdu%!208 * 2
H% = @vdu%!212 / 2
COLOUR 1,9
COLOUR 2,10
COLOUR 3,12
COLOUR 4,13
COLOUR 5,14
COLOUR 6,11
COLOUR 7,15
Y% = H%*4
FOR P% = 1 TO 4
Y% -= H%
FOR X% = 0 TO W% STEP 4*P%
C% = (C% + 1) MOD 8
GCOL C%
RECTANGLE FILL X%, Y%, 2*P%, H%
NEXT
NEXT P%
GW-BASIC
10 SCREEN 8
20 CLS
30 W = 640: H = 200
40 H = H \ 4
50 Y2 = H - 1
60 FOR I = 1 TO 4
70 COL = 0
80 Y = (I - 1) * H
90 FOR X = 1 TO W STEP I
100 IF COL MOD 15 = 0 THEN COL = 0
110 LINE (X, Y)-(X + I, Y + H), COL, BF
120 COL = COL + 1
130 NEXT X
140 NEXT I
150 WHILE INKEY$= "": WEND
160 END
MSX Basic
10 SCREEN 3 ' SCREEN 7 en MSX-2
20 CLS
30 W = 256: H = 192 ' W = 512: H = 212
40 H = H \ 4
50 Y2 = H - 1
60 FOR I = 1 TO 4
70 COL = 0
80 Y = (I - 1) * H
90 FOR X = 1 TO W STEP I
100 IF COL MOD 15 = 0 THEN COL = 0
110 LINE (X, Y)-(X + I, Y + H), COL, BF
120 COL = COL + 1
130 NEXT X
140 NEXT I
150 GOTO 150
QBasic
SCREEN 12
w = 640: h = 480
h = h \ 4
y2 = h - 1
FOR i = 1 TO 4
col = 0
y = (i - 1) * h
FOR x = 1 TO w STEP i
IF col MOD 15 = 0 THEN col = 0
LINE (x, y)-(x + i, y + h), col, BF
col = col + 1
NEXT x
NEXT i
QB64
The QBasic solution works without any changes.
True BASIC
LET w = 640
LET h = 480
SET WINDOW 0, w, 0, h
LET h = h/4
LET y2 = h-1
FOR i = 1 to 4
LET col = 0
LET y = (i-1)*h
FOR x = 1 to w step i
IF remainder(col,15) = 0 then LET col = 0
SET COLOR col
BOX AREA x, x+i, y, y+h
LET col = col+1
NEXT x
NEXT i
END
Befunge
Writes the image to stdout using the PPM format. You can either redirect that to a file, or pipe it to something like ImageMagick's display utility to view the result.
The dimensions of the image are specified by the first two values on the stack: 1366 ("%":*3-) by 768 ("`"8*).
"%":*3-"`"8*>4/::8%00p8/10p4*\55+"3P",,,:.\.5v
5+:,1vv\%2:%8/-g025:\-1_$$55+,\:v1+*8g01g00_@>
024,.<>2/:2%\2/...1+\:>^<:\0:\-1_$20g1-:20p^1p
C
The following code uses the BGI graphics library of Borland's Turbo C.
#include<graphics.h>
#include<conio.h>
#define sections 4
int main()
{
int d=DETECT,m,maxX,maxY,x,y,colour=0,increment=1;
initgraph(&d,&m,"c:/turboc3/bgi");
maxX = getmaxx();
maxY = getmaxy();
for(y=0;y<maxY;y+=maxY/sections)
{
for(x=0;x<maxX;x+=increment)
{
setfillstyle(SOLID_FILL,(colour++)%16);
bar(x,y,x+increment,y+maxY/sections);
}
increment++;
colour = 0;
}
getch();
closegraph();
return 0;
}
C++
#include <windows.h>
//--------------------------------------------------------------------------------------------------
class pinstripe
{
public:
pinstripe() { createColors(); }
void setDimensions( int x, int y ) { _mw = x; _mh = y; }
void createColors()
{
colors[0] = 0; colors[1] = 255; colors[2] = RGB( 0, 255, 0 );
colors[3] = RGB( 0, 0, 255 ); colors[4] = RGB( 255, 0, 255 );
colors[5] = RGB( 0, 255, 255 ); colors[6] = RGB( 255, 255, 0 );
colors[7] = RGB( 255, 255, 255 );
}
void draw( HDC dc )
{
HPEN pen;
int lh = _mh / 4, row, cp;
for( int lw = 1; lw < 5; lw++ )
{
cp = 0;
row = ( lw - 1 ) * lh;
for( int x = 0 + lw > 1 ? lw > 3 ? 2 : 1 : 0; x < _mw; x += lw )
{
pen = CreatePen( PS_SOLID, lw, colors[cp] );
++cp %= 8;
SelectObject( dc, pen );
MoveToEx( dc, x, row, NULL );
LineTo( dc, x, row + lh );
DeleteObject( pen );
}
}
}
private:
int _mw, _mh;
DWORD colors[8];
};
//--------------------------------------------------------------------------------------------------
pinstripe pin;
//--------------------------------------------------------------------------------------------------
void PaintWnd( HWND hWnd )
{
PAINTSTRUCT ps;
HDC hdc = BeginPaint( hWnd, &ps );
pin.draw( hdc );
EndPaint( hWnd, &ps );
}
//--------------------------------------------------------------------------------------------------
LRESULT CALLBACK WndProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam )
{
switch( msg )
{
case WM_DESTROY: PostQuitMessage( 0 ); break;
case WM_PAINT: PaintWnd( hWnd ); break;
default:
return DefWindowProc( hWnd, msg, wParam, lParam );
}
return 0;
}
//--------------------------------------------------------------------------------------------------
HWND InitAll( HINSTANCE hInstance )
{
WNDCLASSEX wcex;
ZeroMemory( &wcex, sizeof( wcex ) );
wcex.cbSize = sizeof( WNDCLASSEX );
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = WndProc;
wcex.hInstance = hInstance;
wcex.hCursor = LoadCursor( NULL, IDC_ARROW );
wcex.hbrBackground = ( HBRUSH )( COLOR_WINDOW + 1 );
wcex.lpszClassName = "_CLR_PS_";
RegisterClassEx( &wcex );
return CreateWindow( "_CLR_PS_", ".: Clr Pinstripe -- PJorente :.", WS_POPUP, CW_USEDEFAULT, 0, 200, 200, NULL, NULL, hInstance, NULL );
}
//--------------------------------------------------------------------------------------------------
int APIENTRY _tWinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow )
{
srand( GetTickCount() );
HWND hwnd = InitAll( hInstance );
if( !hwnd ) return -1;
int mw = GetSystemMetrics( SM_CXSCREEN ),
mh = GetSystemMetrics( SM_CYSCREEN );
pin.setDimensions( mw, mh );
RECT rc = { 0, 0, mw, mh };
AdjustWindowRectEx( &rc, WS_POPUP, FALSE, 0 );
int w = rc.right - rc.left,
h = rc.bottom - rc.top;
int posX = ( GetSystemMetrics( SM_CXSCREEN ) >> 1 ) - ( w >> 1 ),
posY = ( GetSystemMetrics( SM_CYSCREEN ) >> 1 ) - ( h >> 1 );
SetWindowPos( hwnd, HWND_TOP, posX, posY, w, h, SWP_NOZORDER );
ShowWindow( hwnd, nCmdShow );
UpdateWindow( hwnd );
MSG msg;
ZeroMemory( &msg, sizeof( msg ) );
while( msg.message != WM_QUIT )
{
if( PeekMessage( &msg, NULL, 0, 0, PM_REMOVE ) != 0 )
{
TranslateMessage( &msg );
DispatchMessage( &msg );
}
}
return UnregisterClass( "_CLR_PS_", hInstance );
}
//--------------------------------------------------------------------------------------------------
Common Lisp
Using Allegro's Common Graphics. As stated in the comments, I'm using line drawing here which causes the line caps to make the edges between regions to be a bit ragged. I mention a couple of alternatives there which I'm too lazy to implement right now.
(in-package :cg-user)
;;; We only need a bitmap pane - nothing fancy
(defclass draw-pane (bitmap-pane)())
;;; close it down by clicking on it
(defmethod mouse-left-down ((pane draw-pane) buttons data)
(declare (ignore buttons data))
(close pane))
;;; Create the window and draw the pinstripes
(defun make-draw-window ()
(let ((win (make-window :one :class 'draw-pane :width 300 :height 200)))
(draw win)))
;;; Function to draw the pinstripes. The lines are a bit ragged at the intersections
;;; between pinstripe sections due to the fact that common graphics uses round line
;;; caps and there doesn't appear any way to change that. Could be fixed by using
;;; rectangles rather than lines or, perhaps, by setting rectangular clipping regions.
(defun draw (win)
(do ((lwidth 1 (+ 1 lwidth))
(top 0 bottom)
(colors (make-array 8 :initial-contents
'(black red green blue magenta cyan yellow white)))
(bottom (/ (height win) 4) (+ (/ (height win) 4) bottom)))
((eql 5 lwidth) t)
(with-line-width (win lwidth)
(do ((xpos 0 (+ xpos lwidth))
(clr-ndx 0 (mod (+ clr-ndx 1) 8)))
((> xpos (width win)) t)
(with-foreground-color (win (aref colors clr-ndx))
(draw-line win
(make-position xpos top)
(make-position xpos bottom)))))))
Delphi
procedure DrawColorStripes(Image: TImage; Colors: array of TColor; PenWidth,Top,Bottom: integer);
{Draw vertical stripes across full width of image}
{Top/Bottom Control the position of the band of stripes}
{PenWidth controls width of the line drawn}
var X,X2,Y: integer;
begin
Image.Canvas.Pen.Width:=PenWidth;
for X:=0 to (Image.Width div PenWidth)-1 do
begin
Image.Canvas.Pen.Color:=Colors[X mod Length(Colors)];
X2:=X * PenWidth;
Image.Canvas.MoveTo(X2,Top);
Image.Canvas.LineTo(X2,Bottom);
end;
end;
var Colors: array [0..7] of TColor = (clBlack, clRed, clGreen, clBlue, clFuchsia, clAqua, clYellow, clWhite);
procedure ShowColorStripes(Image: TImage);
{Draw all four bands of stripes}
var SHeight: integer;
var I: integer;
begin
SHeight:=Image.Height div 4;
for I:=0 to 4-1 do
begin
DrawColorStripes(Image,Colors,I+1,SHeight*I,SHeight*(I+1));
end;
end;
- Output:
Elapsed Time: 20.167 ms.
EasyLang
k[] = [ 000 900 090 009 909 099 990 999 ]
for i = 1 to 4
col = 1
y = 100 - i * 25
for x = 0 step i to 100 - i
color k[col]
move x y
rect i 25
col = (col + 1) mod1 8
.
.
Factor
USING: accessors arrays colors.constants kernel locals math
math.ranges opengl sequences ui ui.gadgets ui.render ;
CONSTANT: palette
{
COLOR: black
COLOR: red
COLOR: green
COLOR: blue
COLOR: magenta
COLOR: cyan
COLOR: yellow
COLOR: white
}
CONSTANT: bands 4
TUPLE: pinstripe < gadget ;
: <pinstripe> ( -- pinstripe ) pinstripe new ;
M: pinstripe pref-dim* drop { 400 400 } ;
: set-color ( n -- ) palette length mod palette nth gl-color ;
:: draw-pinstripe ( pinstripe n -- )
pinstripe dim>> first2 :> ( w h )
h 4 /i :> quarter
quarter n * :> y2
y2 quarter - :> y1
0 w n <range> [| x |
x n / set-color x y1 2array x n + y2 2array gl-fill-rect
] each ;
M: pinstripe draw-gadget*
bands [1,b] [ draw-pinstripe ] with each ;
<pinstripe> "Color pinstripe" open-window
FreeBASIC
' version 14-03-2017
' compile with: fbc -s console
' or compile with: fbc -s gui
Dim As UInteger ps, col, h, w, x, y1, y2
ScreenInfo w, h
' create display size window, 8bit color (palette), no frame
ScreenRes w, h, 8,, 8
h = h \ 4 : y2 = h -1
For ps = 1 To 4
col = 0
For x = 0 To (w - ps -1) Step ps
Line (x, y1) - (x + ps -1, y2), col, bf
col = (col +1) And 255
Next
y1 += h : y2 += h
Next
' empty keyboard buffer
While Inkey <> "" : Wend
'Print : Print "hit any key to end program"
Sleep
End
FutureBasic
void local fn DoIt
long c = 0, x, y, w = 1
CFArrayRef colors = @[fn ColorBlack,fn ColorRed,
fn ColorGreen,fn ColorBlue,fn ColorMagenta,
fn ColorCyan,fn ColorYellow,fn ColorWhite]
window 1,, (0,0,384,240), NSWindowStyleMaskBorderless
pen -1
for y = 0 to 180 step 60
for x = 0 to 384 - w step w
rect fill (x,y,w,60), colors[c]
c++
if ( c >= len(colors) ) then c = 0
next
w++
next
end fn
fn DoIt
HandleEvents
Gambas
'WARNING this takes a time to display
Public Sub Form_Open()
Dim iColour As Integer[] = [Color.Black, Color.red, Color.Green, Color.Magenta, Color.Cyan, Color.Yellow, Color.white]
Dim hPanel As Panel
Dim siCount, siCounter, siSet As Short
With Me
.Arrangement = Arrange.Row
.Border = False
.Height = 1080
.Width = 400
.Fullscreen = True
End With
For siCounter = 1 To 4
For siCount = 0 To Desktop.Width Step siCounter
hpanel = New Panel(Me)
hpanel.Width = siCounter
hpanel.Height = Desktop.Height / 4
HPanel.Background = iColour[siSet]
Inc siSet
If siSet > 6 Then siSet = 0
Next
Next
End
Go
package main
import "github.com/fogleman/gg"
var palette = [8]string{
"000000", // black
"FF0000", // red
"00FF00", // green
"0000FF", // blue
"FF00FF", // magenta
"00FFFF", // cyan
"FFFF00", // yellow
"FFFFFF", // white
}
func pinstripe(dc *gg.Context) {
w := dc.Width()
h := dc.Height() / 4
for b := 1; b <= 4; b++ {
for x, ci := 0, 0; x < w; x, ci = x+b, ci+1 {
dc.SetHexColor(palette[ci%8])
y := h * (b - 1)
dc.DrawRectangle(float64(x), float64(y), float64(b), float64(h))
dc.Fill()
}
}
}
func main() {
dc := gg.NewContext(900, 600)
pinstripe(dc)
dc.SavePNG("color_pinstripe.png")
}
- Output:
Image similar to AutoHotkey entry.
Icon and Unicon
This is a modified version of the Pinstripe/Display solution. A shrunken screenshot is included.
graphics.icn provides graphics numbers.icn provides ceil printf.icn provides sprintf
J
load 'viewmat'
size=. 2{.".wd'qm' NB. J6
size=. getscreenwh_jgtk_ '' NB. J7
'rgb'viewmat (4<.@%~{:size)# ({.size) $&> 1 2 3 4#&.> <256#.255*#:i.8
Java
import java.awt.*;
import static java.awt.Color.*;
import javax.swing.*;
public class ColourPinstripeDisplay extends JPanel {
final static Color[] palette = {black, red, green, blue, magenta,cyan,
yellow, white};
final int bands = 4;
public ColourPinstripeDisplay() {
setPreferredSize(new Dimension(900, 600));
}
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
int h = getHeight();
for (int b = 1; b <= bands; b++) {
for (int x = 0, colIndex = 0; x < getWidth(); x += b, colIndex++) {
g.setColor(palette[colIndex % palette.length]);
g.fillRect(x, (b - 1) * (h / bands), x + b, b * (h / bands));
}
}
}
public static void main(String[] args) {
SwingUtilities.invokeLater(() -> {
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setTitle("ColourPinstripeDisplay");
f.add(new ColourPinstripeDisplay(), BorderLayout.CENTER);
f.pack();
f.setLocationRelativeTo(null);
f.setVisible(true);
});
}
}
Julia
using Gtk, Graphics, Colors
function drawline(ctx, p1, p2, color, width)
move_to(ctx, p1.x, p1.y)
set_source(ctx, color)
line_to(ctx, p2.x, p2.y)
set_line_width(ctx, width)
stroke(ctx)
end
const can = @GtkCanvas()
const win = GtkWindow(can, "Colour pinstripe/Display", 400, 400)
const colors = [colorant"black", colorant"red", colorant"green", colorant"blue",
colorant"magenta", colorant"cyan", colorant"yellow", colorant"white"]
const numcolors = length(colors)
@guarded draw(can) do widget
ctx = getgc(can)
h = height(can)
w = width(can)
deltaw = 1.0
for (i, x) in enumerate(0:deltaw:w)
drawline(ctx, Point(x, 0.25*h), Point(x, 0), colors[i % numcolors + 1], deltaw)
end
for (i, x) in enumerate(0:deltaw*2:w)
drawline(ctx, Point(x, 0.5*h), Point(x, 0.25*h), colors[i % numcolors + 1], deltaw*2)
end
for (i, x) in enumerate(0:deltaw*3:w)
drawline(ctx, Point(x, 0.75*h), Point(x, 0.5*h), colors[i % numcolors + 1], deltaw*3)
end
for (i, x) in enumerate(0:deltaw*4:w)
drawline(ctx, Point(x, h), Point(x, 0.75*h), colors[i % numcolors + 1], deltaw*4)
end
end
show(can)
const cond = Condition()
endit(w) = notify(cond)
signal_connect(endit, win, :destroy)
wait(cond)
Kotlin
// version 1.1.0
import java.awt.*
import java.awt.Color.*
import javax.swing.*
class ColourPinstripeDisplay : JPanel() {
private companion object {
val palette = arrayOf(black, red, green, blue, magenta, cyan, yellow, white)
}
private val bands = 4
init {
preferredSize = Dimension(900, 600)
}
override fun paintComponent(g: Graphics) {
super.paintComponent(g)
for (b in 1..bands) {
var colIndex = 0
val h = height / bands
for (x in 0 until width step b) {
g.color = palette[colIndex % palette.size]
g.fillRect(x, (b - 1) * h, b, h)
colIndex++
}
}
}
}
fun main(args: Array<String>) {
SwingUtilities.invokeLater {
val f = JFrame()
f.defaultCloseOperation = JFrame.EXIT_ON_CLOSE
f.title = "ColourPinstripeDisplay"
f.add(ColourPinstripeDisplay(), BorderLayout.CENTER)
f.pack()
f.setLocationRelativeTo(null)
f.isVisible = true
}
}
Lua
local nw = require("nw")
local app = nw:app()
local cw, ch = 320, 240
local win = app:window(cw, ch, "Color Pinstripe", false)
local colors = {{0,0,0}, {1,0,0}, {0,1,0}, {0,0,1}, {1,0,1}, {0,1,1}, {1,1,0}, {1,1,1}}
local unpack = unpack or table.unpack -- polyfill 5.2 vs 5.3
function win:repaint()
local cr = win:bitmap():cairo()
local ystride = ch/4
for y = 0, ch-1, ystride do
local i, xstride = 1, y/ystride+1
for x = 0, cw-1, xstride do
cr:rectangle(x, y, xstride, ystride)
cr:rgb(unpack(colors[i]))
cr:fill()
i = (i % #colors) + 1
end
end
end
win:show()
app:run()
M2000 Interpreter
Module names and variables with same name may exist Above and inside M2000 console layer there are 32 layers. These layers used for text/graphics and as sprites. We can make window forms above console window, any number of them and for forms 100 we can use background as layer too. Behind console layer is the background layer (the console window) and also there we can use it for printing. Also there is one more layer, the printer layer which hold a page. For eedilayers as background, console and sprites we can use Input too. This command can't be used in user windows, we have to use controls and events. Sprite layers have a priority number, so 32 is the top one. We can change priorities sending back any sprite.
Version 2 We change console width and height and put in the center of screen We use a thread to move the layer above console (and inside console form), when we push any mouse button (only in console window). Program ends when we close the modal opened window.
Module Checkit {
Window 16, 14000,12000;
Module Pinstripe {
Smooth off ' use of GDI32
Dim colors(0 to 7)
Colors(0)=#000000,#FF0000, #00FF00, #0000FF, #FF00FF, #00FFFF, #FFFF00, #FFFFFF
pixelsX=scale.x/twipsX
pixelsY=scale.y/twipsY
zoneheight=scale.y/4
n=0
Refresh 5000
For i=1 to 4 {
move 0, (i-1)*zoneheight
pinw=i*twipsx
For j=1 to pixelsX/i {
Fill pinw, zoneheight, color(n)
Step 0, -zoneheight
n++:if n=8 then n=0
}
}
\\ now we make the refersh
Refresh 100
}
\\ draw to console window
\\ now we make a window and draw there
Pinstripe
Layer 32 {
Window 12, 10000,10000
Pinstripe
Show
}
Declare Pinstripe Form
Layer Pinstripe {
Window 12, 10000,10000
Pinstripe
motion 2000, 2000
}
refresh 20
Thread {
if control$="MAIN" then if mouse then player 32, mousea.x, mousea.y
} as anyvar interval 100
Method Pinstripe, "Show", 1
Threads Erase
Layer 32 {Hide}
Cls
}
Checkit
Maple
colors := [yellow, black, red, green, magenta, cyan, white]:
plots:-display( [
seq( plot([1+i/10,y,y=5..6], color=colors[i mod 7 + 1],thickness=1), i = 1..500),
seq( plot([1+i/10,y,y=4..5], color=colors[i mod 7 + 1],thickness=2), i = 1..500),seq( plot([1+i/10,y,y=3..4], color=colors[i mod 7 + 1],thickness=3), i = 1..500),seq( plot([1+i/10,y,y=2..3], color=colors[i mod 7 + 1],thickness=4,size=[interface(screenwidth)*20,interface(screenheight)*32]), i = 1..500)],
axes=none);
Mathematica / Wolfram Language
color[y_] := {Black, Red, Green, Blue, Magenta, Cyan, Yellow,
White}[[Mod[y, 8] + 1]];
Graphics[Join[{Thickness[1/408]},
Flatten[{color[#], Line[{{# - 1/2, 408}, {# - 1/2, 307}}]} & /@
Range[408]], {Thickness[1/204]},
Flatten[{color[#], Line[{{2 # - 1, 306}, {2 # - 1, 205}}]} & /@
Range[204]], {Thickness[1/136]},
Flatten[{color[#], Line[{{3 # - 3/2, 204}, {3 # - 3/2, 103}}]} & /@
Range[136]], {Thickness[1/102]},
Flatten[{color[#], Line[{{4 # - 2, 102}, {4 # - 2, 1}}]} & /@
Range[102]]], ImageSize -> {408, 408}]
- Output:
See here.
MIPS Assembly
This isn't perfect, as the edges are cut off due to overscan. But this is as close as I could get:
.include "\SrcAll\Header.asm"
.include "\SrcAll\BasicMacros.asm"
.include "\SrcALL\AdvancedMacros.asm"
.include "\SrcALL\MemoryMap.asm"
.definelabel VRAMBASE,0xA0100008 ;the extra 8 accounts for overscan
.definelabel VRAMSIZE,0x12C00 ;320x240(decimal)
;;;;;;;;;;;;;;;;;;;;;;;;;
main:
la $a0,VRAMBASE
la $a1,colors
li $t1,0x4B00/8
LOOP1:
lh $t0,($a1)
sh $t0,($a0)
lh $t0,2($a1)
sh $t0,2($a0)
lh $t0,4($a1)
sh $t0,4($a0)
lh $t0,6($a1)
sh $t0,6($a0)
lh $t0,8($a1)
sh $t0,8($a0)
lh $t0,10($a1)
sh $t0,10($a0)
lh $t0,12($a1)
sh $t0,12($a0)
lh $t0,14($a1)
sh $t0,14($a0)
addiu $a0,16
subiu $t1,1
bnez $t1,LOOP1
nop
li $t1,0x4B00/16
LOOP2:
lh $t0,($a1)
sh $t0,($a0)
sh $t0,2($a0)
lh $t0,2($a1)
sh $t0,4($a0)
sh $t0,6($a0)
lh $t0,4($a1)
sh $t0,8($a0)
sh $t0,10($a0)
lh $t0,6($a1)
sh $t0,12($a0)
sh $t0,14($a0)
lh $t0,8($a1)
sh $t0,16($a0)
sh $t0,18($a0)
lh $t0,10($a1)
sh $t0,20($a0)
sh $t0,22($a0)
lh $t0,12($a1)
sh $t0,24($a0)
sh $t0,26($a0)
lh $t0,14($a1)
sh $t0,28($a0)
sh $t0,30($a0)
addiu $a0,32
subiu $t1,1
bnez $t1,LOOP2
nop
li $t1,0x4B00/32
LOOP3:
lh $t0,0($a1)
sh $t0,0($a0)
sh $t0,2($a0)
sh $t0,4($a0)
lh $t0,2($a1)
sh $t0,6($a0)
sh $t0,8($a0)
sh $t0,10($a0)
lh $t0,4($a1)
sh $t0,12($a0)
sh $t0,14($a0)
sh $t0,16($a0)
lh $t0,8($a1)
sh $t0,18($a0)
sh $t0,20($a0)
sh $t0,22($a0)
lh $t0,10($a1)
sh $t0,24($a0)
sh $t0,26($a0)
sh $t0,28($a0)
lh $t0,12($a1)
sh $t0,30($a0)
sh $t0,32($a0)
sh $t0,34($a0)
lh $t0,14($a1)
sh $t0,36($a0)
sh $t0,38($a0)
sh $t0,40($a0)
lh $t0,0($a1)
sh $t0,42($a0)
sh $t0,44($a0)
sh $t0,46($a0)
lh $t0,2($a1)
sh $t0,48($a0)
sh $t0,50($a0)
sh $t0,52($a0)
lh $t0,4($a1)
sh $t0,54($a0)
sh $t0,56($a0)
sh $t0,58($a0)
lh $t0,6($a1)
sh $t0,60($a0)
sh $t0,62($a0)
addiu $a0,64
subiu $t1,1
bnez $t1,LOOP3
nop
li $t1,0x4B00/32
LOOP4:
lh $t0,0($a1)
sh $t0,0($a0)
sh $t0,2($a0)
sh $t0,4($a0)
sh $t0,6($a0)
lh $t0,2($a1)
sh $t0,8($a0)
sh $t0,10($a0)
sh $t0,12($a0)
sh $t0,14($a0)
lh $t0,4($a1)
sh $t0,16($a0)
sh $t0,18($a0)
sh $t0,20($a0)
sh $t0,22($a0)
lh $t0,6($a1)
sh $t0,24($a0)
sh $t0,26($a0)
sh $t0,28($a0)
sh $t0,30($a0)
lh $t0,8($a1)
sh $t0,32($a0)
sh $t0,34($a0)
sh $t0,36($a0)
sh $t0,38($a0)
lh $t0,10($a1)
sh $t0,40($a0)
sh $t0,42($a0)
sh $t0,44($a0)
sh $t0,46($a0)
lh $t0,12($a1)
sh $t0,48($a0)
sh $t0,50($a0)
sh $t0,52($a0)
sh $t0,54($a0)
lh $t0,14($a1)
sh $t0,56($a0)
sh $t0,58($a0)
sh $t0,60($a0)
sh $t0,62($a0)
addiu $a0,64
subiu $t1,1
bnez $t1,LOOP4
nop
shutdown:
nop ;project 64 will throw an error and end the program if I don't have a NOP here. Real hardware doesn't care.
b shutdown
nop
colors:
;colors are approximate because I'm not sure how the bit patterns work.
.halfword 0x0000,0xf000,0x0f00,0x00f0,0xf0f0,0x7fff,0xff00,0xffff
.include "\SrcN64\Footer.asm"
- Output:
[Output of Nintendo 64 emulator]
Nim
import gintro/[glib, gobject, gtk, gio, cairo]
const
Width = 420
Height = 420
const Colors = [[0.0, 0.0, 0.0], [255.0, 0.0, 0.0],
[0.0, 255.0, 0.0], [0.0, 0.0, 255.0],
[255.0, 0.0, 255.0], [0.0, 255.0, 255.0],
[255.0, 255.0, 0.0], [255.0, 255.0, 255.0]]
#---------------------------------------------------------------------------------------------------
proc draw(area: DrawingArea; context: Context) =
## Draw the color bars.
const lineHeight = Height div 4
var y = 0.0
for lineWidth in [1.0, 2.0, 3.0, 4.0]:
context.setLineWidth(lineWidth)
var x = 0.0
var colorIndex = 0
while x < Width:
context.setSource(Colors[colorIndex])
context.moveTo(x, y)
context.lineTo(x, y + lineHeight)
context.stroke()
colorIndex = (colorIndex + 1) mod Colors.len
x += lineWidth
y += lineHeight
#---------------------------------------------------------------------------------------------------
proc onDraw(area: DrawingArea; context: Context; data: pointer): bool =
## Callback to draw/redraw the drawing area contents.
area.draw(context)
result = true
#---------------------------------------------------------------------------------------------------
proc activate(app: Application) =
## Activate the application.
let window = app.newApplicationWindow()
window.setSizeRequest(Width, Height)
window.setTitle("Color pinstripe")
# Create the drawing area.
let area = newDrawingArea()
window.add(area)
# Connect the "draw" event to the callback to draw the color bars.
discard area.connect("draw", ondraw, pointer(nil))
window.showAll()
#———————————————————————————————————————————————————————————————————————————————————————————————————
let app = newApplication(Application, "Rosetta.ColorPinstripe")
discard app.connect("activate", activate)
discard app.run()
OCaml
open Graphics
let () =
open_graph "";
let width = size_x ()
and height = size_y () in
let colors = [| black; red; green; blue; magenta; cyan; yellow; white |] in
let num_colors = Array.length colors in
let h = height / 4 in
for i = 1 to 4 do
let j = 4 - i in
for x = 0 to pred width do
set_color colors.((x / i) mod num_colors);
moveto x (j * h); lineto x (j * h + h);
done
done;
ignore(read_key())
run with:
$ ocaml graphics.cma pinstripe.ml
PascalABC.NET
##
uses GraphABC;
Window.title := 'Color Pinstripe';
var colors := |clblack, clred, clgreen, clblue, clmagenta, clcyan, clyellow, clwhite|;
var w := Window.Width;
var h := Window.Height div 4;
for var b := 1 to 4 do
begin
var x := 0;
var ci := 0;
while (x < w) do
begin
var y := h * (b - 1);
Brush.Color := colors[ci mod 8];
FillRectangle(x, y, x + b, y + h);
x += b;
ci += 1;
end;
end;
Perl
use strict;
use warnings;
use GD;
my %colors = (
"white" => [255,255,255], "red" => [255, 0, 0], "green" => [ 0,255, 0], "blue" => [ 0, 0,255],
"magenta" => [255, 0,255], "yellow" => [255,255, 0], "cyan" => [ 0,255,255], "black" => [ 0, 0, 0]);
my($height, $width) = (240, 320);
my $image = GD::Image->new( $width , $height );
my @paintcolors;
my $barheight = $height / 4;
my($startx, $starty, $run, $colorindex) = (0) x 4;
for my $color ( sort keys %colors ) {
push @paintcolors, $image->colorAllocate( @{$colors{ $color }} );
}
while ( $run < 4 ) {
my $barwidth = $run + 1;
while ( $startx + $barwidth < $width ) {
$image->filledRectangle( $startx, $starty,
$startx + $barwidth,
$starty + $barheight - 1,
$paintcolors[ $colorindex % 8 ] );
$startx += $barwidth;
$colorindex++;
}
$starty += $barheight;
$startx = 0;
$colorindex = 0;
$run++;
}
open ( DISPLAY , '>' , 'pinstripes.png' ) or die;
binmode DISPLAY;
print DISPLAY $image->png;
close DISPLAY;
Phix
-- -- demo\rosetta\Colour_pinstripe.exw -- ================================= -- with javascript_semantics -- but not yet CD_PRINTER include pGUI.e constant colours = {CD_BLACK, CD_RED, CD_GREEN, CD_MAGENTA, CD_CYAN, CD_YELLOW, CD_WHITE} --constant colours = {CD_BLACK, CD_WHITE} procedure draw_to(cdCanvas cdcanvas) cdCanvasActivate(cdcanvas) integer {width, height} = cdCanvasGetSize(cdcanvas) for y=1 to 4 do integer x = 0, c = 1, h = floor(height/(5-y)) while x<width do cdCanvasSetForeground(cdcanvas, colours[c]) cdCanvasBox(cdcanvas, x, x+y, height-h, height) x += y c = iff(c=length(colours)?1:c+1) end while height -= h end for cdCanvasFlush(cdcanvas) end procedure Ihandle dlg, canvas cdCanvas cddbuffer, cdcanvas function redraw_cb(Ihandle /*ih*/) draw_to(cddbuffer) return IUP_DEFAULT end function function map_cb(Ihandle ih) cdcanvas = cdCreateCanvas(CD_IUP, ih) cddbuffer = cdCreateCanvas(CD_DBUFFER, cdcanvas) return IUP_DEFAULT end function function unmap_cb(Ihandle /*ih*/) cdKillCanvas(cddbuffer) cdKillCanvas(cdcanvas) return IUP_DEFAULT end function function print_cb(Ihandle /*ih*/) if platform()!=JS then cdCanvan print_canvas = cdCreateCanvas(CD_PRINTER, "pinstripe -d") if print_canvas!=NULL then draw_to(print_canvas) cdKillCanvas(print_canvas) end if end if return IUP_DEFAULT end function function exit_cb(Ihandle /*ih*/) return IUP_CLOSE end function procedure main() IupOpen() Ihandle file_menu = IupMenu({IupMenuItem("&Print",Icallback("print_cb")), IupMenuItem("E&xit", Icallback("exit_cb"))}) Ihandle main_menu = IupMenu({IupSubmenu("File", file_menu)}) canvas = IupCanvas(NULL) IupSetAttribute(canvas, "RASTERSIZE", "600x400") -- initial size IupSetCallback(canvas, "MAP_CB", Icallback("map_cb")) IupSetCallback(canvas, "UNMAP_CB", Icallback("unmap_cb")) dlg = IupDialog(canvas) IupSetAttribute(dlg, "TITLE", "Colour pinstripe") IupSetAttributeHandle(dlg,"MENU",main_menu) IupSetCallback(canvas, "ACTION", Icallback("redraw_cb")) IupShowXY(dlg,IUP_CENTER,IUP_CENTER) IupSetAttribute(canvas, "RASTERSIZE", NULL) -- release the minimum limitation if platform()!=JS then IupMainLoop() IupClose() end if end procedure main()
Simply change constant colours to {CD_BLACK, CD_WHITE} for the monochrome tasks (as redirected here).
For the print tasks redirected here, note the routine draw_to() draws 4 bands each one quarter of the page height (with truncation to whole pixels and knock-on-rounding), however cdCanvasGetSize() actually returns {width, height, width_mm, height_mm}, the canvas size in pixels and in millimetres, and from that it is assumed it would be trivial to change the calculation of h from height/4 to 1 inch, and also the "for y=1 to 4 do" to "while height do", all in that one draw_to() routine.
PicoLisp
(de *Colors # Black Red Green Blue Magenta Cyan Yellow White
((0 0 0) (255 0 0) (0 255 0) (0 0 255)
(255 0 255) (0 255 255) (255 255 0) (255 255 255) .) )
(let Ppm # Create PPM of 384 x 288 pixels
(make
(for N 4
(let L
(make
(do (/ 384 N)
(let C (pop *Colors)
(do N (link C)) ) ) )
(do 72 (link L)) ) ) )
(out '(display) # Pipe to ImageMagick
(prinl "P6") # NetPBM format
(prinl (length (car Ppm)) " " (length Ppm))
(prinl 255)
(for Y Ppm (for X Y (apply wr X))) ) )
Plain English
To run:
Start up.
Clear the screen.
Imagine a box with the screen's left and the screen's top and the screen's right and the screen's bottom divided by 4.
Make a color pinstripe given 1 pixel and the box.
Draw the color pinstripe.
Draw the next color pinstripe given the color pinstripe.
Draw the next color pinstripe given the color pinstripe.
Draw the next color pinstripe given the color pinstripe.
Refresh the screen.
Wait for the escape key.
Shut down.
A color pinstripe has a width and a box.
To make a color pinstripe given a width and a box:
Put the width into the color pinstripe's width.
Put the box into the color pinstripe's box.
To draw a color pinstripe:
Put the color pinstripe's box into a bound box.
Put the color pinstripe's width into a width.
Imagine a box with the bound's left and the bound's top and the width and the bound's bottom.
Put the bound's right divided by the width into an amount.
Loop.
If a counter is past the amount, exit.
Draw and fill the box with the black color. Move the box right the width.
Draw and fill the box with the red color. Move the box right the width.
Draw and fill the box with the green color. Move the box right the width.
Draw and fill the box with the blue color. Move the box right the width.
Draw and fill the box with the magenta color. Move the box right the width.
Draw and fill the box with the cyan color. Move the box right the width.
Draw and fill the box with the yellow color. Move the box right the width.
Draw and fill the box with the white color.
Repeat.
To draw the next color pinstripe given a color pinstripe:
Add 1 pixel to the color pinstripe's width.
Move the color pinstripe's box down the color pinstripe's box's height.
Draw the color pinstripe.
PureBasic
;Create a Pinstripe image with a pattern of vertical stripe colors
Procedure PinstripeDisplay(width, height, Array psColors(1), numColors = 0)
Protected x, imgID, psHeight = height / 4, psWidth = 1, psTop, horzBand, curColor
If numColors < 1: numColors = ArraySize(psColors()) + 1: EndIf
imgID = CreateImage(#PB_Any, width, height)
If imgID
StartDrawing(ImageOutput(imgID))
Repeat
x = 0
curColor = 0
Repeat
Box(x, psTop, psWidth, psHeight, psColors(curColor))
curColor = (curColor + 1) % numColors
x + psWidth
Until x >= width
psWidth + 1
horzBand + 1
psTop = horzBand * height / 4 ;move to the top of next horizontal band of image
Until psTop >= height
StopDrawing()
EndIf
ProcedureReturn imgID
EndProcedure
;Open a window and display the pinstripe
If OpenWindow(0, 0, 0, 1, 1,"PureBasic Pinstripe", #PB_Window_Maximize | #PB_Window_SystemMenu)
Dim psColors(7)
psColors(0) = RGB($00, $00, $00) ;black
psColors(1) = RGB($FF, $00, $00) ;red
psColors(2) = RGB($00, $FF, $00) ;green
psColors(3) = RGB($00, $00, $FF) ;blue
psColors(4) = RGB($FF, $00, $FF) ;magenta
psColors(5) = RGB($00, $FF, $FF) ;cyan
psColors(6) = RGB($FF, $FF, $00) ;yellow
psColors(7) = RGB($FF, $FF, $FF) ;white
PicID = PinstripeDisplay(WindowWidth(0), WindowHeight(0), psColors())
ImageGadget(0, 0, 0, WindowWidth(0), WindowHeight(0), ImageID(PicID))
While WaitWindowEvent() <> #PB_Event_CloseWindow
Wend
EndIf
Python
from turtle import *
colors = ["black", "red", "green", "blue", "magenta", "cyan", "yellow", "white"]
# Middle of screen is 0,0
screen = getscreen()
left_edge = -screen.window_width()//2
right_edge = screen.window_width()//2
quarter_height = screen.window_height()//4
half_height = quarter_height * 2
speed("fastest")
for quarter in range(4):
pensize(quarter+1)
colornum = 0
min_y = half_height - ((quarter + 1) * quarter_height)
max_y = half_height - ((quarter) * quarter_height)
for x in range(left_edge,right_edge,quarter+1):
penup()
pencolor(colors[colornum])
colornum = (colornum + 1) % len(colors)
setposition(x,min_y)
pendown()
setposition(x,max_y)
notused = input("Hit enter to continue: ")
Quackery
[ $ "turtleduck.qky" loadfile ] now!
[ 1280 ] is width ( --> n )
[ 720 ] is height ( --> n )
[ 0 0 0 ] is black ( --> n n n )
[ 255 0 0 ] is red ( --> n n n )
[ 0 255 0 ] is green ( --> n n n )
[ 0 0 255 ] is blue ( --> n n n )
[ 255 0 255 ] is magenta ( --> n n n )
[ 0 255 255 ] is cyan ( --> n n n )
[ 255 255 0 ] is yellow ( --> n n n )
[ 255 255 255 ] is white ( --> n n n )
[ [] swap
' [ black red
green blue
magenta cyan
yellow white ]
witheach
[ over times
[ dip swap tuck
nested join
unrot ]
drop ]
drop ] is colours ( n --> [ )
[ behead
dup dip
[ nested join ] ] is nextcolour ( [ --> [ [ )
[ nextcolour colour
-1 4 turn
height n->v
4 n->v v/ 2dup walk
-v fly
1 4 turn
1 n->v fly ] is stripe ( [ --> [ )
[ turtle
50 frames
width n->v 2 1 v/ fly
-1 4 turn
height n->v 2 1 v/ fly
-1 4 turn
4 times
[ i^ 1+ colours
width times stripe
drop
width n->v -v fly
-1 4 turn
height n->v
4 n->v v/ fly
1 4 turn ]
1 frames ] is pinstripes ( --> )
- Output:
Racket
#lang racket/gui
(define-values [W H] (get-display-size #t))
(define parts 4)
(define colors
'("Black" "Red" "Green" "Blue" "Magenta" "Cyan" "Yellow" "White"))
(define (paint-pinstripe canvas dc)
(send dc set-pen "black" 0 'transparent)
(send dc set-brush "black" 'solid)
(define H* (round (/ H parts)))
(for ([row parts])
(define Y (* row H*))
(for ([X (in-range 0 W (add1 row))] [c (in-cycle colors)])
(send dc set-brush c 'solid)
(send dc draw-rectangle X Y (add1 row) H*))))
(define full-frame%
(class frame%
(define/override (on-subwindow-char r e)
(when (eq? 'escape (send e get-key-code))
(send this show #f)))
(super-new
[label "Color Pinstripe"] [width W] [height H]
[style '(no-caption no-resize-border hide-menu-bar no-system-menu)])
(define c (new canvas% [parent this] [paint-callback paint-pinstripe]))
(send this show #t)))
(void (new full-frame%))
Raku
(formerly Perl 6)
my ($x,$y) = 1280, 720;
my @colors = map -> $r, $g, $b { [$r, $g, $b] },
0, 0, 0,
255, 0, 0,
0, 255, 0,
0, 0, 255,
255, 0, 255,
0, 255, 255,
255, 255, 0,
255, 255, 255;
my $img = open "pinstripes.ppm", :w orelse die "Can't create pinstripes.ppm: $_";
$img.print: qq:to/EOH/;
P3
# pinstripes.ppm
$x $y
255
EOH
my $vzones = $y div 4;
for 1..4 -> $width {
my $stripes = ceiling $x / $width / +@colors;
my $row = [flat ((@colors Xxx $width) xx $stripes).map: *.values].splice(0,$x);
$img.put: $row for ^$vzones;
}
$img.close;
Ring
# Project : Colour pinstripe/Display
load "guilib.ring"
paint = null
new qapp
{
win1 = new qwidget() {
setwindowtitle("archimedean spiral")
setgeometry(100,100,500,600)
label1 = new qlabel(win1) {
setgeometry(10,10,400,400)
settext("")
}
new qpushbutton(win1) {
setgeometry(150,500,100,30)
settext("draw")
setclickevent("draw()")
}
show()
}
exec()
}
func draw
p1 = new qpicture()
color = new qcolor() {
setrgb(0,0,255,255)
}
pen = new qpen() {
setcolor(color)
setwidth(1)
}
paint = new qpainter() {
begin(p1)
setpen(pen)
w = 100
h = 100
color = list(8)
color[1] = [0 ,0, 0]
color[2] = [255, 0, 0]
color[3] = [0, 255, 0]
color[4] = [0, 0, 255]
color[5] = [255, 0, 255]
color[6] = [0, 255, 255]
color[7] = [255, 255, 0]
color[8] = [255, 255, 255]
y = h*4
for p = 1 to 4
y = y - h
for x = 0 to w step 4*p
col = random(7) + 1
color2 = new qcolor()
color2.setrgb(color[col][1],color[col][2],color[col][3],255)
mybrush = new qbrush() {setstyle(1) setcolor(color2)}
setbrush(mybrush)
paint.drawrect(x, y, 2*p, h)
next
next
endpaint()
}
label1 { setpicture(p1) show() }
See image:
Scala
Java Swing Interoperability
import java.awt.Color._
import java.awt._
import javax.swing._
object ColourPinstripeDisplay extends App {
private def palette = Seq(black, red, green, blue, magenta, cyan, yellow, white)
SwingUtilities.invokeLater(() =>
new JFrame("Colour Pinstripe") {
class ColourPinstripe_Display extends JPanel {
override def paintComponent(g: Graphics): Unit = {
val bands = 4
super.paintComponent(g)
for (b <- 1 to bands) {
var colIndex = 0
for (x <- 0 until getWidth by b) {
g.setColor(ColourPinstripeDisplay.palette(colIndex % ColourPinstripeDisplay.palette.length))
g.fillRect(x, (b - 1) * (getHeight / bands), x + b, b * (getHeight / bands))
colIndex += 1
}
}
}
setPreferredSize(new Dimension(900, 600))
}
add(new ColourPinstripe_Display, BorderLayout.CENTER)
pack()
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE)
setLocationRelativeTo(null)
setVisible(true)
}
)
}
Sidef
require('GD')
func pinstripes(width = 1280, height = 720) {
var im = %O<GD::Image>.new(width, height)
var colors = [0, 255].variations_with_repetition(3)
var paintcolors = colors.shuffle.map {|rgb|
im.colorAllocate(rgb...)
}
var starty = 0
var barheight = height//4
for barwidth in (1..4) {
for (
var(startx = 0, colorindex = 0);
startx + barwidth <= width;
startx += barwidth
) {
im.filledRectangle(startx, starty, startx+barwidth,
starty + barheight - 1, paintcolors[colorindex++ % 8])
}
starty += barheight
}
return im
}
File('pinstripes.png').write(pinstripes().png, :raw)
SmileBASIC
FOR I=1 TO 4
COLIDX=0
YTOP=(I-1)*60
FOR X=0 TO 399 STEP I
IF COLIDX MOD 8==0 THEN
RESTORE @COLOURS
ENDIF
READ R,G,B
GFILL X,YTOP,X+I,YTOP+59,RGB(R,G,B)
INC COLIDX
NEXT
NEXT
@COLOURS
DATA 0,0,0
DATA 255,0,0
DATA 0,255,0
DATA 0,0,255
DATA 255,0,255
DATA 0,255,255
DATA 255,255,0
DATA 255,255,255
Tcl
package require Tcl 8.5
package require Tk 8.5
wm attributes . -fullscreen 1
pack [canvas .c -highlightthick 0] -fill both -expand 1
set colors {black red green blue magenta cyan yellow white}
set dy [expr {[winfo screenheight .c]/4}]
set y 0
foreach dx {1 2 3 4} {
for {set x 0} {$x < [winfo screenwidth .c]} {incr x $dx} {
.c create rectangle $x $y [expr {$x+$dx}] [expr {$y+$dy}] \
-fill [lindex $colors 0] -outline {}
set colors [list {*}[lrange $colors 1 end] [lindex $colors 0]]
}
incr y $dy
}
Uxntal
( uxnasm color-pinstripe.tal color-pinstripe.rom && uxnemu color-pinstripe.rom )
|00 @System &vector $2 &expansion $2 &wst $1 &rst $1 &metadata $2 &r $2 &g $2 &b $2 &debug $1 &state $1
|20 @Screen &vector $2 &width $2 &height $2 &auto $1 &pad $1 &x $2 &y $2 &addr $2 &pixel $1 &sprite $1
|0100
( set theme )
#0f00 .System/r DEO2
#00f0 .System/g DEO2
#000f .System/b DEO2
( store screen width )
.Screen/width DEI2 ,draw-layer/width STR2
( store a quarter of the screen height )
.Screen/height DEI2 #02 SFT2 ,&quarter-height STR2
( draw the four stripe layers )
#00
&loop ( -- )
( update y coordinate )
#00 OVR [ LIT2 &quarter-height $2 ] MUL2 .Screen/y DEO2
( draw a layer )
INCk draw-layer
( do it four times )
INC DUP #04 LTH ?&loop
POP BRK
@draw-layer ( step -: )
( extend step to short, create counter )
#00 SWP #0000
&loop ( -- )
( update x coordinate )
MUL2k .Screen/x DEO2
( fill a region )
DUP #03 AND #80 ORA .Screen/pixel DEO
( loop until the end of the screen )
INC2 MUL2k [ LIT2 &width $2 ] LTH2 ?&loop
POP2 POP2 JMP2r
Visual Basic .NET
Public Class Main
Inherits System.Windows.Forms.Form
Public Sub New()
Me.FormBorderStyle = FormBorderStyle.None
Me.WindowState = FormWindowState.Maximized
End Sub
Private Sub Main_Load(sender As Object, e As EventArgs) Handles Me.Load
Dim Index As Integer
Dim Colors() As Color = {Color.Black, Color.Red, Color.Green, Color.Magenta, Color.Cyan, Color.Yellow, Color.White}
Dim Height = (Me.ClientSize.Height / 4) + 1
For y = 1 To 4
Dim Top = Me.ClientSize.Height / 4 * (y - 1)
For x = 0 To Me.ClientSize.Width Step y
If Index = 6 Then Index = 0 Else Index += 1
Me.Controls.Add(New Panel With {.Top = Top, .Height = Height, .Left = x, .Width = y, .BackColor = Colors(Index)})
Next
Next
End Sub
End Class
Wren
import "graphics" for Canvas, Color
import "dome" for Window
class Game {
static init() {
Window.title = "Color pinstripe"
__width = 900
__height = 600
Canvas.resize(__width, __height)
Window.resize(__width, __height)
var colors = [
Color.hex("000000"), // black
Color.hex("FF0000"), // red
Color.hex("00FF00"), // green
Color.hex("0000FF"), // blue
Color.hex("FF00FF"), // magenta
Color.hex("00FFFF"), // cyan
Color.hex("FFFF00"), // yellow
Color.hex("FFFFFF") // white
]
pinstripe(colors)
}
static pinstripe(colors) {
var w = __width
var h = (__height/4).floor
for (b in 1..4) {
var x = 0
var ci = 0
while (x < w) {
var y = h * (b - 1)
Canvas.rectfill(x, y, b, h, colors[ci%8])
x = x + b
ci = ci + 1
}
}
}
static update() {}
static draw(dt) {}
}
XPL0
code ChIn=7, Point=41, SetVid=45;
int X, Y, W, C;
[SetVid($13); \set 320x200 graphics mode in 256 colors
for Y:= 0 to 200-1 do \for all the scan lines...
[W:= Y/50 + 1; \width of stripe = 1, 2, 3, 4
C:= 0; \set color to black so first pixel becomes blue
for X:= 0 to 320-1 do \for all the pixels on a scan line...
[if rem(X/W) = 0 then C:= C+1; \cycle through all system colors
Point(X, Y, C); \set pixel at X,Y to color C
];
];
X:= ChIn(1); \wait for keystroke
SetVid(3); \restore normal text mode display
]
Yabasic
w = 640 : h = 480
open window w, h
h4 = h/4
FOR I=1 TO 4
COLIDX=0
YTOP=(I-1)*h4
FOR X=1 TO w STEP I
IF mod(COLIDX, 8) = 0 RESTORE COLOURS
READ R,G,B
color R, G, B
fill rectangle X,YTOP,X+I,YTOP+h4
COLIDX = COLIDX + 1
NEXT
NEXT
label COLOURS
DATA 0,0,0
DATA 255,0,0
DATA 0,255,0
DATA 0,0,255
DATA 255,0,255
DATA 0,255,255
DATA 255,255,0
DATA 255,255,255
- Programming Tasks
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