Data commit

Task/Pinstripe-Printer/Go/pinstripe-printer.go

@@ -0,0 +1,42 @@
+package main
+
+import (
+    "github.com/fogleman/gg"
+    "log"
+    "os/exec"
+    "runtime"
+)
+
+var palette = [2]string{
+    "FFFFFF", // white
+    "000000", // black
+}
+
+func pinstripe(dc *gg.Context) {
+    w := dc.Width()
+    h := dc.Height() / 7
+    for b := 1; b <= 11; b++ {
+        for x, ci := 0, 0; x < w; x, ci = x+b, ci+1 {
+            dc.SetHexColor(palette[ci%2])
+            y := h * (b - 1)
+            dc.DrawRectangle(float64(x), float64(y), float64(b), float64(h))
+            dc.Fill()
+        }
+    }
+}
+
+func main() {
+    dc := gg.NewContext(842, 595)
+    pinstripe(dc)
+    fileName := "w_pinstripe.png"
+    dc.SavePNG(fileName)
+    var cmd *exec.Cmd
+    if runtime.GOOS == "windows" {
+        cmd = exec.Command("mspaint", "/pt", fileName)
+    } else {
+        cmd = exec.Command("lp", fileName)
+    }
+    if err := cmd.Run(); err != nil {
+        log.Fatal(err)
+    }
+}