Color wheel: Difference between revisions

Content added Content deleted

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@@ Line 905: / Line 905: @@
 =={{header|Ring}}==
-[https://kepfeltoltes.zapto.org/public/20210909015811ColorWheel.jpg Color wheel - image]
+[https://kepfeltoltes.zapto.org/public/20210909181910ColorWheel.jpg Color wheel - image]
 <lang ring>
 load "stdlib.ring"
 load "guilib.ring"
 paint = null
-new qapp
+new qapp { win1 = new qwidget()
-        {
+           {
-        win1 = new qwidget() {
+           setwindowtitle("Color wheel")
-               setwindowtitle("Color wheel")
+           setgeometry(540,140,400,400)
-               setgeometry(540,140,300,400)
+           label1 = new qlabel(win1) {
-               label1 = new qlabel(win1) {
+           setgeometry(30,30,320,320)
-                        setgeometry(10,10,400,400)
+           settext("")
-                        settext("")
+           }
-               }
+           show()
-               show()
+           }
-               }
+           draw()
-               draw()
+           exec()
-               exec()
-               }
-func draw
-      p1 = new qpicture()
-           color = new qcolor() {
-           setrgb(0,0,255,255)
            }
+func draw
-      paint = new qpainter() {
-              begin(p1)
+     p1 = new qpicture()
+     paint = new qpainter() {
+     begin(p1)
+     colorWheel()
+     endpaint()
+     }
+     label1 { setpicture(p1) show() }
-      colorWheel()
-      endpaint()
-      }
-      label1 { setpicture(p1) show() }
 func colorWheel()
      pi = 3.14
-     radius = 100
+     radius = 150
      x = win1.width()
      y = win1.height()
      for i=1 to x
          for j=1 to y
-             color = new qcolor() { setrgb(255,255,255,255) }
+             color = new qcolor(){ setrgb(255,255,255,255) }
-             pen1 = new qpen() { setcolor(color)  setwidth(5) }
              h = (atan2(i-radius,j-radius)+pi)/(2*pi)
              s = sqrt(pow(i-radius,2)+pow(j-radius,2))/radius
              v = 1
-             if s < 1
+             if s < = 1 and  h < = 1
                 color.setHsvF(h,s,v,1)
                 pen1 = new qpen() { setcolor(color) setwidth(5) }
+                paint.setPen(pen1)
+                paint.drawPoint(i,j)
              ok
-             paint.setPen(pen1)
-             paint.drawPoint(i,j)
          next
      next