Colour pinstripe/Display

From Rosetta Code
Task
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, White.

After filling the top quarter of the display, we switch to a wider 2 pixel wide vertical pinstripe pattern. Halfway down the display we switch to 3 pixel wide vertical pinstripe and then finally to a 4 pixels wide vertical pinstripe for the last quarter of the display.

c.f. Pinstripe/Display

ActionScript[edit]

 
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));
}
 
}
 
}
 

AutoHotkey[edit]

Works with: AutoHotkey_L
Ahk stripes.png

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

BBC BASIC[edit]

      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%
 

Befunge[edit]

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+*[email protected]>
024,.<>2/:2%\2/...1+\:>^<:\0:\-1_$20g1-:20p^1p

C[edit]

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++[edit]

Clr pinstripe cpp.png

 
#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[edit]

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)))))))

FreeBASIC[edit]

' 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

Gambas[edit]

'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
 

Click to see output image

Go[edit]

Library: Go Graphics
Translation of: Java
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[edit]

This is a modified version of the Pinstripe/Display solution. A shrunken screenshot is included.

link graphics,numbers,printf
 
procedure main() # pinstripe
 
&window := open("Colour Pinstripe","g","bg=black") |
stop("Unable to open window")
 
WAttrib("canvas=hidden")
WAttrib(sprintf("size=%d,%d",WAttrib("displaywidth"),WAttrib("displayheight")))
WAttrib("canvas=maximal")
 
Colours := ["black", "red", "green", "blue", "magenta", "cyan", "yellow", "white"]
height := WAttrib("height")
width := WAttrib("width")
 
maxbands := 4 # bands to draw
bandheight := height / maxbands # height of each band
every bands := 1 to maxbands do { # for each band
top := 1 + bandheight * (bands-1) # .. top of band
every c := 1 to width do {
colour := Colours[ceil((c+0.)/bands)%*Colours+1]
if colour == "black" then next # skip black
else {
Fg(colour)
DrawLine(c,top,c,top+bandheight-1)
}
}
}
WDone()
end

Pinstripe Colour unicon.jpeg

graphics.icn provides graphics numbers.icn provides ceil printf.icn provides sprintf

J[edit]

   load 'viewmat'
size=. 2{.".wd'qm' NB. J6
size=. getscreenwh_jgtk_ '' NB. J7
'rgb'viewmat (4<[email protected]%~{:size)# ({.size) $&> 1 2 3 4#&.> <256#.255*#:i.8


Java[edit]

Works with: Java version 8
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[edit]

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[edit]

Translation of: Java
// 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
}
}

M2000 Interpreter[edit]

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[edit]

 
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[edit]

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.

OCaml[edit]

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

Perl[edit]

#!/usr/bin/perl -w
use strict ;
use GD ;
 
my $image = new GD::Image( 320 , 240 ) ;
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 @paintcolors ;
foreach my $color ( keys %colors ) {
my $paintcolor = $image->colorAllocate( @{$colors{ $color }} ) ;
push @paintcolors, $paintcolor ;
}
my $startx = 0 ;
my $starty = 0 ;
my $run = 0 ;
my $barheight = 240 / 4 ;
my $colorindex = 0 ;
while ( $run < 4 ) {
my $barwidth = $run + 1 ;
while ( $startx + $barwidth < 320 ) {
$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" ) || die ;
binmode DISPLAY ;
print DISPLAY $image->png ;
close DISPLAY ;

Perl 6[edit]

Works with: Rakudo version 2018-10
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 = [((@colors Xxx $width) xx $stripes).flatmap: *.values].splice(0,$x);
$img.put: $row for ^$vzones;
}
 
$img.close;

Phix[edit]

Library: pGUI
--
-- demo\rosetta\Colour_pinstripe.exw
-- =================================
--
include pGUI.e
 
constant colours = {CD_BLACK, CD_RED, CD_GREEN, CD_MAGENTA, CD_CYAN, CD_YELLOW, 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*/, integer /*posx*/, integer /*posy*/)
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 esc_close(Ihandle /*ih*/, atom c)
if c=K_ESC then return IUP_CLOSE end if
return IUP_CONTINUE
end function
 
function print_cb(Ihandle /*ih*/)
cdCanvan print_canvas = cdCreateCanvas(CD_PRINTER, "pinstripe -d")
if print_canvas!=NULL then
draw_to(print_canvas)
cdKillCanvas(print_canvas)
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"))
IupSetCallback(dlg, "K_ANY", Icallback("esc_close"))
 
IupMap(dlg)
IupSetAttribute(canvas, "RASTERSIZE", NULL) -- release the minimum limitation
 
IupShowXY(dlg,IUP_CENTER,IUP_CENTER)
 
IupMainLoop()
 
IupClose()
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[edit]

(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))) ) )

PureBasic[edit]

;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[edit]

 
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: ")
 

Racket[edit]

 
#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%))
 

Ring[edit]

 
# 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:

Colour pinstripe/Display

Scala[edit]

Java Swing Interoperability[edit]

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[edit]

Translation of: Perl
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)

Tcl[edit]

Library: Tk
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
}

Visual Basic .NET[edit]

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

XPL0[edit]

PinsXPL0.gif
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
]