bindings work

README.md

@@ -115,7 +115,7 @@ Here are some examples of using Pixie for realtime rendering with some popular w
 ### Text
 [examples/text.nim](examples/text.nim)
 ```nim
-var font = readFont("tests/fonts/Roboto-Regular_1.ttf")
+var font = readFont("examples/data/Roboto-Regular_1.ttf")
 font.size = 20
 
 let text = "Typesetting is the arrangement and composition of text in graphic design and publishing in both digital and traditional medias."
@@ -127,7 +127,7 @@ image.fillText(font.typeset(text, vec2(180, 180)), translate(vec2(10, 10)))
 ### Text spans
 [examples/text_spans.nim](examples/text_spans.nim)
 ```nim
-let typeface = readTypeface("tests/fonts/Ubuntu-Regular_1.ttf")
+let typeface = readTypeface("examples/data/Ubuntu-Regular_1.ttf")
 
 proc newFont(typeface: Typeface, size: float32, color: Color): Font =
   result = newFont(typeface)
@@ -272,7 +272,7 @@ path.polygon(
 )
 
 let paint = newPaint(pkImageTiled)
-paint.image = readImage("tests/images/png/baboon.png")
+paint.image = readImage("examples/data/baboon.png")
 paint.imageMat = scale(vec2(0.08, 0.08))
 
 image.fillPath(path, paint)

bindings/bindings.nim

@@ -14,15 +14,42 @@ type
     x*, y*: float32
 
   Matrix3* = object
-    a*, b*, c*, d*, e*, f*, g*, h*, i*: float32
+    values*: array[9, float32]
 
 proc matrix3*(): Matrix3 =
-  Matrix3(a: 1, b: 0, c: 0, d: 0, e: 1, f: 0, g: 0, h: 0, i: 1)
+  result.values[0] = 1
+  result.values[4] = 1
+  result.values[8] = 1
 
-proc drawImage1*(
-  ctx: Context, image: Image, dx, dy: float32
-) {.raises: [PixieError].} =
-  ctx.drawImage(image, dx, dy)
+proc mul*(a, b: Matrix3): Matrix3 =
+  cast[Matrix3](cast[Mat3](a) * cast[Mat3](b))
+
+proc translate*(x, y: float32): Matrix3 =
+  result = matrix3()
+  result.values[6] = x
+  result.values[7] = y
+
+proc rotate*(angle: float32): Matrix3 =
+  let
+    sin = sin(angle)
+    cos = cos(angle)
+  result = matrix3()
+  result.values[0] = cos
+  result.values[1] = -sin
+  result.values[3] = sin
+  result.values[4] = cos
+
+proc scale*(x, y: float32): Matrix3 =
+  result = matrix3()
+  result.values[0] = x
+  result.values[4] = y
+
+proc parseColor*(s: string): Color {.raises: [PixieError]} =
+  try:
+    result = parseHtmlColor(s)
+  except:
+    let e = getCurrentException()
+    raise newException(PixieError, e.msg, e)
 
 proc drawImage2*(
   ctx: Context, image: Image, dx, dy, dWidth, dHeight: float32
@@ -62,6 +89,8 @@ exportObject Vector2:
 exportObject Matrix3:
   constructor:
     matrix3
+  procs:
+    mul(Matrix3, Matrix3)
 
 exportObject Rect:
   discard
@@ -257,7 +286,7 @@ exportRefObject Context:
     setTransform
     transform(Context, Mat3)
     resetTransform
-    drawImage1
+    drawImage(Context, Image, float32, float32)
     drawImage2
     drawImage3
     moveTo(Context, float32, float32)
@@ -274,6 +303,7 @@ exportRefObject Context:
     clearRect(Context, float32, float32, float32, float32)
     fillRect(Context, float32, float32, float32, float32)
     strokeRect(Context, float32, float32, float32, float32)
+    strokeSegment(Context, float32, float32, float32, float32)
     fillText(Context, string, float32, float32)
     strokeText(Context, string, float32, float32)
     translate(Context, float32, float32)
@@ -292,6 +322,10 @@ exportProcs:
   parsePath
   miterLimitToAngle
   angleToMiterLimit
+  parseColor
+  translate(float32, float32)
+  rotate(float32)
+  scale(float32, float32)
 
 writeFiles("bindings/generated", "pixie")
 

examples/image_tiled.nim

@@ -11,7 +11,7 @@ path.polygon(
 )
 
 let paint = newPaint(pkImageTiled)
-paint.image = readImage("tests/images/png/baboon.png")
+paint.image = readImage("examples/data/baboon.png")
 paint.imageMat = scale(vec2(0.08, 0.08))
 
 image.fillPath(path, paint)

examples/text.nim

@@ -3,7 +3,7 @@ import pixie
 let image = newImage(200, 200)
 image.fill(rgba(255, 255, 255, 255))
 
-var font = readFont("tests/fonts/Roboto-Regular_1.ttf")
+var font = readFont("examples/data/Roboto-Regular_1.ttf")
 font.size = 20
 
 let text = "Typesetting is the arrangement and composition of text in graphic design and publishing in both digital and traditional medias."

examples/text_spans.nim

@@ -3,7 +3,7 @@ import pixie
 let image = newImage(200, 200)
 image.fill(rgba(255, 255, 255, 255))
 
-let typeface = readTypeface("tests/fonts/Ubuntu-Regular_1.ttf")
+let typeface = readTypeface("examples/data/Ubuntu-Regular_1.ttf")
 
 proc newFont(typeface: Typeface, size: float32, color: Color): Font =
   result = newFont(typeface)

src/pixie/contexts.nim

@@ -679,6 +679,19 @@ proc polygon*(
   ## Adds an n-sided regular polygon at (x, y) of size to the current path.
   ctx.path.polygon(pos, size, sides)
 
+proc strokeSegment*(ctx: Context, segment: Segment) {.raises: [PixieError].} =
+  ## Strokes a segment (draws a line from segment.at to segment.to) according
+  ## to the current strokeStyle and other context settings.
+  let path = newPath()
+  path.moveTo(segment.at)
+  path.lineTo(segment.to)
+  ctx.stroke(path)
+
+proc strokeSegment*(ctx: Context, ax, ay, bx, by: float32) {.raises: [PixieError].} =
+  ## Strokes a segment (draws a line from ax, ay to bx, by) according
+  ## to the current strokeStyle and other context settings.
+  ctx.strokeSegment(segment(vec2(ax, ay), vec2(bx, by)))
+
 proc fillRoundedRect*(
   ctx: Context, rect: Rect, nw, ne, se, sw: float32
 ) {.raises: [PixieError].} =
@@ -709,14 +722,6 @@ proc strokeRoundedRect*(
   ## current strokeStyle and other context settings.
   ctx.strokeRoundedRect(rect, radius, radius, radius, radius)
 
-proc strokeSegment*(ctx: Context, segment: Segment) {.raises: [PixieError].} =
-  ## Strokes a segment (draws a line from segment.at to segment.to) according
-  ## to the current strokeStyle and other context settings.
-  let path = newPath()
-  path.moveTo(segment.at)
-  path.lineTo(segment.to)
-  ctx.stroke(path)
-
 proc fillEllipse*(
   ctx: Context, center: Vec2, rx, ry: float32
 ) {.raises: [PixieError].} =