1 files changed, 46 insertions, 0 deletions
diff --git a/tests/converter/tconvert.nim b/tests/converter/tconvert.nim
new file mode 100644
index 000000000..a8ddcf119
--- /dev/null
+++ b/tests/converter/tconvert.nim
@@ -0,0 +1,46 @@
+import
+  Cairo
+
+converter FloatConversion64(x: int): float64 = return toFloat(x)
+converter FloatConversion32(x: int): float32 = return toFloat(x)
+converter FloatConversionPlain(x: int): float = return toFloat(x)
+
+const width = 500
+const height = 500
+const outFile = "CairoTest.png"
+
+var surface = Cairo.ImageSurfaceCreate(CAIRO.FORMAT_RGB24, width, height)
+var ç = Cairo.Create(surface)
+
+ç.SetSourceRGB(1, 1, 1)
+ç.Paint()
+
+ç.SetLineWidth(10)
+ç.SetLineCap(CAIRO.LINE_CAP_ROUND)
+
+const count = 12
+var winc = width / count
+var hinc = width / count
+for i in 1 .. count-1:
+  var amount = i / count
+  ç.SetSourceRGB(0, 1 - amount, amount)
+  ç.MoveTo(i * winc, hinc)
+  ç.LineTo(width - i * winc, height - hinc)
+  ç.Stroke()
+
+  ç.SetSourceRGB(1 - amount, 0, amount)
+  ç.MoveTo(winc, i * hinc)
+  ç.LineTo(width - winc, height - i * hinc)
+  ç.Stroke()
+
+echo(surface.WriteToPNG(outFile))
+surface.Destroy()
+
+type TFoo = object
+
+converter toPtr*(some: var TFoo): ptr TFoo = (addr some)
+
+
+proc zoot(x: ptr TFoo) = nil
+var x: Tfoo
+zoot(x)