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paint as ref object

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This commit is contained in:
Ryan Oldenburg 2021-08-06 18:08:21 -05:00
parent 6b5f848d36
commit 6d9ab5b200
17 changed files with 235 additions and 244 deletions
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36
README.md
View file

@ -236,18 +236,16 @@ image.draw(lines)
### Gradient
[examples/gradient.nim](examples/gradient.nim)
```nim
let paint = Paint(
kind: pkGradientRadial,
gradientHandlePositions: @[
vec2(100, 100),
vec2(200, 100),
vec2(100, 200)
],
gradientStops: @[
ColorStop(color: rgba(255, 0, 0, 255), position: 0),
ColorStop(color: rgba(255, 0, 0, 40), position: 1.0),
]
)
let paint = newPaint(pkGradientRadial)
paint.gradientHandlePositions = @[
vec2(100, 100),
vec2(200, 100),
vec2(100, 200)
]
paint.gradientStops = @[
ColorStop(color: rgba(255, 0, 0, 255), position: 0),
ColorStop(color: rgba(255, 0, 0, 40), position: 1.0),
]
image.fillPath(
"""
@ -272,14 +270,12 @@ path.polygon(
70,
sides = 8
)
image.fillPath(
path,
Paint(
kind: pkImageTiled,
image: readImage("tests/images/png/baboon.png"),
imageMat: scale(vec2(0.08, 0.08))
)
)
let paint = newPaint(pkImageTiled)
paint.image = readImage("tests/images/png/baboon.png")
paint.imageMat = scale(vec2(0.08, 0.08))
image.fillPath(path, paint)
```
![example output](examples/image_tiled.png)

22
examples/gradient.nim
View file

@ -3,18 +3,16 @@ import pixie
let image = newImage(200, 200)
image.fill(rgba(255, 255, 255, 255))
let paint = Paint(
kind: pkGradientRadial,
gradientHandlePositions: @[
vec2(100, 100),
vec2(200, 100),
vec2(100, 200)
],
gradientStops: @[
ColorStop(color: rgba(255, 0, 0, 255), position: 0),
ColorStop(color: rgba(255, 0, 0, 40), position: 1.0),
]
)
let paint = newPaint(pkGradientRadial)
paint.gradientHandlePositions = @[
vec2(100, 100),
vec2(200, 100),
vec2(100, 200)
]
paint.gradientStops = @[
ColorStop(color: rgba(255, 0, 0, 255), position: 0),
ColorStop(color: rgba(255, 0, 0, 40), position: 1.0),
]
image.fillPath(
"""

13
examples/image_tiled.nim
View file

@ -9,13 +9,10 @@ path.polygon(
70,
sides = 8
)
image.fillPath(
path,
Paint(
kind: pkImageTiled,
image: readImage("tests/images/png/baboon.png"),
imageMat: scale(vec2(0.08, 0.08))
)
)
let paint = newPaint(pkImageTiled)
paint.image = readImage("tests/images/png/baboon.png")
paint.imageMat = scale(vec2(0.08, 0.08))
image.fillPath(path, paint)
image.writeFile("examples/image_tiled.png")

4
examples/realtime_glfw.nim
View file

@ -16,7 +16,7 @@ proc display() =
## Called every frame by main while loop
# draw shiny sphere on gradient background
var linerGradient = Paint(kind: pkGradientLinear)
let linerGradient = newPaint(pkGradientLinear)
linerGradient.gradientHandlePositions.add(vec2(0, 0))
linerGradient.gradientHandlePositions.add(vec2(0, 256))
linerGradient.gradientStops.add(
@ -26,7 +26,7 @@ proc display() =
ctx.fillStyle = linerGradient
ctx.fillRect(0, 0, 256, 256)
var radialGradient = Paint(kind: pkGradientRadial)
let radialGradient = newPaint(pkGradientRadial)
radialGradient.gradientHandlePositions.add(vec2(128, 128))
radialGradient.gradientHandlePositions.add(vec2(256, 128))
radialGradient.gradientHandlePositions.add(vec2(128, 256))

4
examples/realtime_glut.nim
View file

@ -15,7 +15,7 @@ proc display() {.cdecl.} =
## Called every frame by GLUT
# draw shiny sphere on gradient background
var linerGradient = Paint(kind: pkGradientLinear)
let linerGradient = newPaint(pkGradientLinear)
linerGradient.gradientHandlePositions.add(vec2(0, 0))
linerGradient.gradientHandlePositions.add(vec2(0, 256))
linerGradient.gradientStops.add(
@ -25,7 +25,7 @@ proc display() {.cdecl.} =
ctx.fillStyle = linerGradient
ctx.fillRect(0, 0, 256, 256)
var radialGradient = Paint(kind: pkGradientRadial)
let radialGradient = newPaint(pkGradientRadial)
radialGradient.gradientHandlePositions.add(vec2(128, 128))
radialGradient.gradientHandlePositions.add(vec2(256, 128))
radialGradient.gradientHandlePositions.add(vec2(128, 256))

4
examples/realtime_sdl.nim
View file

@ -26,7 +26,7 @@ proc display() =
## Called every frame by main while loop
# draw shiny sphere on gradient background
var linerGradient = Paint(kind: pkGradientLinear)
let linerGradient = newPaint(pkGradientLinear)
linerGradient.gradientHandlePositions.add(vec2(0, 0))
linerGradient.gradientHandlePositions.add(vec2(0, 256))
linerGradient.gradientStops.add(
@ -36,7 +36,7 @@ proc display() =
ctx.fillStyle = linerGradient
ctx.fillRect(0, 0, 256, 256)
var radialGradient = Paint(kind: pkGradientRadial)
let radialGradient = newPaint(pkGradientRadial)
radialGradient.gradientHandlePositions.add(vec2(128, 128))
radialGradient.gradientHandlePositions.add(vec2(256, 128))
radialGradient.gradientHandlePositions.add(vec2(128, 256))

4
examples/realtime_win32.nim
View file

@ -15,7 +15,7 @@ var
proc draw() =
# draw shiny sphere on gradient background
var linerGradient = Paint(kind: pkGradientLinear)
let linerGradient = newPaint(pkGradientLinear)
linerGradient.gradientHandlePositions.add(vec2(0, 0))
linerGradient.gradientHandlePositions.add(vec2(0, 256))
linerGradient.gradientStops.add(
@ -25,7 +25,7 @@ proc draw() =
ctx.fillStyle = linerGradient
ctx.fillRect(0, 0, 256, 256)
var radialGradient = Paint(kind: pkGradientRadial)
let radialGradient = newPaint(pkGradientRadial)
radialGradient.gradientHandlePositions.add(vec2(128, 128))
radialGradient.gradientHandlePositions.add(vec2(256, 128))
radialGradient.gradientHandlePositions.add(vec2(128, 256))

4
examples/realtime_wnim.nim
View file

@ -14,7 +14,7 @@ var
proc draw() =
# draw shiny sphere on gradient background
var linerGradient = Paint(kind: pkGradientLinear)
let linerGradient = newPaint(pkGradientLinear)
linerGradient.gradientHandlePositions.add(vec2(0, 0))
linerGradient.gradientHandlePositions.add(vec2(0, 256))
linerGradient.gradientStops.add(
@ -24,7 +24,7 @@ proc draw() =
ctx.fillStyle = linerGradient
ctx.fillRect(0, 0, 256, 256)
var radialGradient = Paint(kind: pkGradientRadial)
let radialGradient = newPaint(pkGradientRadial)
radialGradient.gradientHandlePositions.add(vec2(128, 128))
radialGradient.gradientHandlePositions.add(vec2(256, 128))
radialGradient.gradientHandlePositions.add(vec2(128, 256))

37
src/pixie/contexts.nim
View file

@ -53,8 +53,8 @@ proc newContext*(image: Image): Context =
result.globalAlpha = 1
result.lineWidth = 1
result.miterLimit = 10
result.fillStyle = Paint(kind: pkSolid, color: rgbx(0, 0, 0, 255))
result.strokeStyle = Paint(kind: pkSolid, color: rgbx(0, 0, 0, 255))
result.fillStyle = rgbx(0, 0, 0, 255)
result.strokeStyle = rgbx(0, 0, 0, 255)
result.fontSize = 12
proc newContext*(width, height: int): Context {.inline.} =
@ -81,6 +81,9 @@ proc save*(ctx: Context) {.inline.} =
## a stack.
ctx.stateStack.add(ctx.state())
ctx.fillStyle = newPaint(ctx.fillStyle)
ctx.strokeStyle = newPaint(ctx.strokeStyle)
proc saveLayer*(ctx: Context) =
## Saves the entire state of the context by pushing the current state onto
## a stack and allocates a new image layer for subsequent drawing. Calling
@ -356,20 +359,15 @@ proc stroke*(ctx: Context) {.inline.} =
proc clearRect*(ctx: Context, rect: Rect) =
## Erases the pixels in a rectangular area.
let paint = newPaint(pkSolid)
paint.blendMode = bmOverwrite
let path = newPath()
path.rect(rect)
if ctx.layer != nil:
ctx.layer.fillPath(
path,
Paint(kind: pkSolid, color: rgbx(0, 0, 0, 0), blendMode: bmOverwrite),
ctx.mat
)
ctx.layer.fillPath( path, paint, ctx.mat)
else:
ctx.image.fillPath(
path,
Paint(kind: pkSolid, color: rgbx(0, 0, 0, 0), blendMode: bmOverwrite),
ctx.mat
)
ctx.image.fillPath(path, paint, ctx.mat)
proc clearRect*(ctx: Context, x, y, width, height: float32) {.inline.} =
## Erases the pixels in a rectangular area.
@ -604,17 +602,22 @@ proc strokePolygon*(ctx: Context, pos: Vec2, size: float32, sides: int) =
proc drawImage*(ctx: Context, image: Image, dx, dy, dWidth, dHeight: float32) =
## Draws a source image onto the destination image.
var
let
imageMat = ctx.mat * translate(vec2(dx, dy)) * scale(vec2(
dWidth / image.width.float32,
dHeight / image.height.float32
))
savedStyle = ctx.fillStyle
ctx.fillStyle = Paint(kind: pkImage, image: image, imageMat: imageMat)
savedFillStyle = ctx.fillStyle
ctx.fillStyle = newPaint(pkImage)
ctx.fillStyle.image = image
ctx.fillStyle.imageMat = imageMat
let path = newPath()
path.rect(rect(dx, dy, dWidth, dHeight))
ctx.fill(path)
ctx.fillStyle = savedStyle
ctx.fillStyle = savedFillStyle
proc drawImage*(ctx: Context, image: Image, dx, dy: float32) =
## Draws a source image onto the destination image.
@ -635,7 +638,7 @@ proc drawImage*(
dx, dy, dWidth, dHeight: float32
) =
## Draws a source image onto the destination image.
var image = image.subImage(sx.int, sy.int, sWidth.int, sHeight.int)
let image = image.subImage(sx.int, sy.int, sWidth.int, sHeight.int)
ctx.drawImage(image, dx, dx, image.width.float32, image.height.float32)
proc drawImage*(ctx: Context, image: Image, src, dest: Rect) =

14
src/pixie/fileformats/svg.nim
View file

@ -172,14 +172,12 @@ proc decodeCtx(inherited: Ctx, node: XmlNode): Ctx =
let id = fill[5 .. ^2]
if id in result.linearGradients:
let linearGradient = result.linearGradients[id]
result.fill = Paint(
kind: pkGradientLinear,
gradientHandlePositions: @[
result.transform * vec2(linearGradient.x1, linearGradient.y1),
result.transform * vec2(linearGradient.x2, linearGradient.y2)
],
gradientStops: linearGradient.stops,
)
result.fill = newPaint(pkGradientLinear)
result.fill.gradientHandlePositions = @[
result.transform * vec2(linearGradient.x1, linearGradient.y1),
result.transform * vec2(linearGradient.x2, linearGradient.y2)
]
result.fill.gradientStops = linearGradient.stops
else:
raise newException(PixieError, "Missing SVG resource " & id)
else:

63
src/pixie/paints.nim
View file

@ -1,4 +1,4 @@
import blends, chroma, common, images, internal, options, vmath
import blends, chroma, common, images, internal, vmath
type
PaintKind* = enum
@ -9,19 +9,19 @@ type
pkGradientRadial
pkGradientAngular
Paint* = object
Paint* = ref object
## Paint used to fill paths.
case kind*: PaintKind
of pkSolid:
color*: ColorRGBX ## Color to fill with.
of pkImage, pkImageTiled:
image*: Image ## Image to fill with.
imageMat*: Mat3 ## Matrix of the filled image.
of pkGradientLinear, pkGradientRadial, pkGradientAngular:
gradientHandlePositions*: seq[Vec2] ## Gradient positions (image space).
gradientStops*: seq[ColorStop] ## Color stops (gradient space).
blendMode*: BlendMode ## Blend mode.
opacityOption: Option[float32]
kind*: PaintKind
blendMode*: BlendMode ## Blend mode.
opacity*: float32
# pkSolid
color*: ColorRGBX ## Color to fill with.
# pkImage, pkImageTiled:
image*: Image ## Image to fill with.
imageMat*: Mat3 ## Matrix of the filled image.
# pkGradientLinear, pkGradientRadial, pkGradientAngular:
gradientHandlePositions*: seq[Vec2] ## Gradient positions (image space).
gradientStops*: seq[ColorStop] ## Color stops (gradient space).
ColorStop* = object
## Color stop on a gradient curve.
@ -30,32 +30,35 @@ type
SomePaint* = string | Paint | SomeColor
proc newPaint*(kind: PaintKind): Paint =
## Create a new Paint.
result = Paint(kind: kind, opacity: 1, imageMat: mat3())
proc newPaint*(paint: Paint): Paint =
## Create a new Paint with the same properties.
result = newPaint(paint.kind)
result.blendMode = paint.blendMode
result.opacity = paint.opacity
result.color = paint.color
result.image = paint.image
result.imageMat = paint.imageMat
result.gradientHandlePositions = paint.gradientHandlePositions
result.gradientStops = paint.gradientStops
converter parseSomePaint*(paint: SomePaint): Paint {.inline.} =
## Given SomePaint, parse it in different ways.
when type(paint) is string:
Paint(kind: pkSolid, color: parseHtmlColor(paint).rgbx())
result = newPaint(pkSolid)
result.color = parseHtmlColor(paint).rgbx()
elif type(paint) is SomeColor:
result = newPaint(pkSolid)
when type(paint) is ColorRGBX:
Paint(kind: pkSolid, color: paint)
result.color = paint
else:
Paint(kind: pkSolid, color: paint.rgbx())
result.color = paint.rgbx()
elif type(paint) is Paint:
paint
proc opacity*(paint: Paint): float32 =
## Paint opacity (applies with color or image opacity).
if paint.opacityOption.isSome:
paint.opacityOption.get()
else:
1
proc `opacity=`*(paint: var Paint, opacity: float32) =
## Set the paint opacity (applies with color or image opacity).
if opacity >= 0 and opacity <= 1:
paint.opacityOption = some(opacity)
else:
raise newException(PixieError, "Invalid opacity: " & $opacity)
proc toLineSpace(at, to, point: Vec2): float32 {.inline.} =
## Convert position on to where it would fall on a line between at and to.
let

34
src/pixie/paths.nim
View file

@ -1803,23 +1803,24 @@ proc fillPath*(
# Draw the image (maybe tiled) or gradients. Do this with opaque paint and
# and then apply the paint's opacity to the mask.
var paintOpaque = paint
paintOpaque.opacity = 1
let savedOpacity = paint.opacity
paint.opacity = 1
case paint.kind:
of pkSolid:
discard # Handled above
of pkImage:
fill.draw(paintOpaque.image, paintOpaque.imageMat)
fill.draw(paint.image, paint.imageMat)
of pkImageTiled:
fill.drawTiled(paintOpaque.image, paintOpaque.imageMat)
fill.drawTiled(paint.image, paint.imageMat)
of pkGradientLinear:
fill.fillGradientLinear(paintOpaque)
fill.fillGradientLinear(paint)
of pkGradientRadial:
fill.fillGradientRadial(paintOpaque)
fill.fillGradientRadial(paint)
of pkGradientAngular:
fill.fillGradientAngular(paintOpaque)
fill.fillGradientAngular(paint)
paint.opacity = savedOpacity
if paint.opacity != 1:
mask.applyOpacity(paint.opacity)
@ -1898,23 +1899,24 @@ proc strokePath*(
# Draw the image (maybe tiled) or gradients. Do this with opaque paint and
# and then apply the paint's opacity to the mask.
var paintOpaque = paint
paintOpaque.opacity = 1
let savedOpacity = paint.opacity
paint.opacity = 1
case paint.kind:
of pkSolid:
discard # Handled above
of pkImage:
fill.draw(paintOpaque.image, paintOpaque.imageMat)
fill.draw(paint.image, paint.imageMat)
of pkImageTiled:
fill.drawTiled(paintOpaque.image, paintOpaque.imageMat)
fill.drawTiled(paint.image, paint.imageMat)
of pkGradientLinear:
fill.fillGradientLinear(paintOpaque)
fill.fillGradientLinear(paint)
of pkGradientRadial:
fill.fillGradientRadial(paintOpaque)
fill.fillGradientRadial(paint)
of pkGradientAngular:
fill.fillGradientAngular(paintOpaque)
fill.fillGradientAngular(paint)
paint.opacity = savedOpacity
if paint.opacity != 1:
mask.applyOpacity(paint.opacity)

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tests/images/context/paintSaveRestore.png Normal file
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12
tests/test_contexts.nim
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@ -526,7 +526,8 @@ block:
image.fill(rgba(255, 255, 255, 255))
var paint = Paint(kind: pkSolid, color: rgba(0, 0, 255, 255))
let paint = newPaint(pkSolid)
paint.color = rgba(0, 0, 255, 255)
paint.blendMode = bmExclusion
ctx.fillStyle = paint
@ -634,3 +635,12 @@ block:
ctx.ellipse(150, 75, 40, 60)
ctx.lineWidth = 25
doAssert ctx.isPointInStroke(110, 75)
block:
let ctx = newContext(newImage(100, 100))
ctx.fillStyle.color = rgba(255, 0, 0, 255)
ctx.save()
ctx.fillStyle.color = rgba(0, 0, 255, 255)
ctx.restore()
ctx.fillRect(0, 0, ctx.image.width.float32, ctx.image.height.float32)
ctx.image.writeFile("tests/images/context/paintSaveRestore.png")

20
tests/test_fonts.nim
View file

@ -634,17 +634,15 @@ block:
block:
var font = readFont("tests/fonts/IBMPlexSans-Regular_2.ttf")
font.size = 48
font.paint = Paint(
kind: pkGradientLinear,
gradientHandlePositions: @[
vec2(0, 50),
vec2(100, 50),
],
gradientStops: @[
ColorStop(color: rgba(255, 0, 0, 255), position: 0),
ColorStop(color: rgba(255, 0, 0, 127), position: 1.0),
]
)
font.paint = newPaint(pkGradientLinear)
font.paint.gradientHandlePositions = @[
vec2(0, 50),
vec2(100, 50),
]
font.paint.gradientStops = @[
ColorStop(color: rgba(255, 0, 0, 255), position: 0),
ColorStop(color: rgba(255, 0, 0, 127), position: 1.0),
]
let image = newImage(100, 100)
image.fill(rgba(255, 255, 255, 255))

166
tests/test_paints.nim
View file

@ -12,144 +12,108 @@ block:
let image = newImage(100, 100)
image.fillPath(
heartShape,
Paint(
kind: pkSolid,
color: rgba(255, 0, 0, 255)
)
rgba(255, 0, 0, 255)
)
image.writeFile("tests/images/paths/paintSolid.png")
block:
let paint = newPaint(pkImage)
paint.image = decodePng(readFile("tests/images/png/baboon.png"))
paint.imageMat = scale(vec2(0.2, 0.2))
let image = newImage(100, 100)
image.fillPath(
heartShape,
Paint(
kind: pkImage,
image: decodePng(readFile("tests/images/png/baboon.png")),
imageMat: scale(vec2(0.2, 0.2))
)
)
image.fillPath(heartShape, paint)
image.writeFile("tests/images/paths/paintImage.png")
block:
var paint = Paint(
kind: pkImage,
image: decodePng(readFile("tests/images/png/baboon.png")),
imageMat: scale(vec2(0.2, 0.2))
)
let paint = newPaint(pkImage)
paint.image = decodePng(readFile("tests/images/png/baboon.png"))
paint.imageMat = scale(vec2(0.2, 0.2))
paint.opacity = 0.5
let image = newImage(100, 100)
image.fillPath(
heartShape,
paint
)
image.fillPath(heartShape, paint)
image.writeFile("tests/images/paths/paintImageOpacity.png")
block:
let paint = newPaint(pkImageTiled)
paint.image = decodePng(readFile("tests/images/png/baboon.png"))
paint.imageMat = scale(vec2(0.02, 0.02))
let image = newImage(100, 100)
image.fillPath(
heartShape,
Paint(
kind: pkImageTiled,
image: decodePng(readFile("tests/images/png/baboon.png")),
imageMat: scale(vec2(0.02, 0.02))
)
)
image.fillPath(heartShape, paint)
image.writeFile("tests/images/paths/paintImageTiled.png")
block:
var paint = Paint(
kind: pkImageTiled,
image: decodePng(readFile("tests/images/png/baboon.png")),
imageMat: scale(vec2(0.02, 0.02))
)
let paint = newPaint(pkImageTiled)
paint.image = decodePng(readFile("tests/images/png/baboon.png"))
paint.imageMat = scale(vec2(0.02, 0.02))
paint.opacity = 0.5
let image = newImage(100, 100)
image.fillPath(
heartShape,
paint
)
image.fillPath(heartShape, paint)
image.writeFile("tests/images/paths/paintImageTiledOpacity.png")
block:
let paint = newPaint(pkGradientLinear)
paint.gradientHandlePositions = @[
vec2(0, 50),
vec2(100, 50),
]
paint.gradientStops = @[
ColorStop(color: rgba(255, 0, 0, 255), position: 0),
ColorStop(color: rgba(255, 0, 0, 40), position: 1.0),
]
let image = newImage(100, 100)
image.fillPath(
heartShape,
Paint(
kind: pkGradientLinear,
gradientHandlePositions: @[
vec2(0, 50),
vec2(100, 50),
],
gradientStops: @[
ColorStop(color: rgba(255, 0, 0, 255), position: 0),
ColorStop(color: rgba(255, 0, 0, 40), position: 1.0),
]
)
)
image.fillPath(heartShape, paint)
image.writeFile("tests/images/paths/gradientLinear.png")
block:
let image = newImage(100, 100)
image.fillPath(
heartShape,
Paint(
kind: pkGradientRadial,
gradientHandlePositions: @[
vec2(50, 50),
vec2(100, 50),
vec2(50, 100)
],
gradientStops: @[
ColorStop(color: rgba(255, 0, 0, 255), position: 0),
ColorStop(color: rgba(255, 0, 0, 40), position: 1.0),
]
)
)
let paint = newPaint(pkGradientRadial)
paint.gradientHandlePositions = @[
vec2(50, 50),
vec2(100, 50),
vec2(50, 100)
]
paint.gradientStops = @[
ColorStop(color: rgba(255, 0, 0, 255), position: 0),
ColorStop(color: rgba(255, 0, 0, 40), position: 1.0),
]
let image = newImage(100, 100)
image.fillPath(heartShape, paint)
image.writeFile("tests/images/paths/gradientRadial.png")
block:
let image = newImage(100, 100)
image.fillPath(
heartShape,
Paint(
kind: pkGradientAngular,
gradientHandlePositions: @[
vec2(50, 50),
vec2(100, 50),
vec2(50, 100)
],
gradientStops: @[
ColorStop(color: rgba(255, 0, 0, 255), position: 0),
ColorStop(color: rgba(255, 0, 0, 40), position: 1.0),
]
)
)
let paint = newPaint(pkGradientAngular)
paint.gradientHandlePositions = @[
vec2(50, 50),
vec2(100, 50),
vec2(50, 100)
]
paint.gradientStops = @[
ColorStop(color: rgba(255, 0, 0, 255), position: 0),
ColorStop(color: rgba(255, 0, 0, 40), position: 1.0),
]
let image = newImage(100, 100)
image.fillPath(heartShape, paint)
image.writeFile("tests/images/paths/gradientAngular.png")
block:
var paint = Paint(
kind: pkGradientAngular,
gradientHandlePositions: @[
vec2(50, 50),
vec2(100, 50),
vec2(50, 100)
],
gradientStops: @[
ColorStop(color: rgba(255, 0, 0, 255), position: 0),
ColorStop(color: rgba(255, 0, 0, 40), position: 1.0),
]
)
let paint = newPaint(pkGradientAngular)
paint.gradientHandlePositions = @[
vec2(50, 50),
vec2(100, 50),
vec2(50, 100)
]
paint.gradientStops = @[
ColorStop(color: rgba(255, 0, 0, 255), position: 0),
ColorStop(color: rgba(255, 0, 0, 40), position: 1.0),
]
paint.opacity = 0.5
let image = newImage(100, 100)
image.fillPath(
heartShape,
paint
)
image.fillPath(heartShape, paint)
image.writeFile("tests/images/paths/gradientAngularOpacity.png")

42
tests/test_paths.nim
View file

@ -367,11 +367,16 @@ block:
let image = newImage(100, 100)
image.fillPath(
"M 10 10 H 60 V 60 H 10 z",
Paint(kind: pkSolid, color: rgbx(255, 0, 0, 255), blendMode: bmNormal)
rgbx(255, 0, 0, 255)
)
let paint = newPaint(pkSolid)
paint.color = rgbx(0, 255, 0, 255)
paint.blendMode = bmExcludeMask
image.fillPath(
"M 30 30 H 80 V 80 H 30 z",
Paint(kind: pkSolid, color: rgbx(0, 255, 0, 255), blendMode: bmExcludeMask)
paint
)
image.writeFile("tests/images/paths/rectExcludeMask.png")
@ -379,11 +384,16 @@ block:
let image = newImage(100, 100)
image.fillPath(
"M 10.1 10.1 H 60.1 V 60.1 H 10.1 z",
Paint(kind: pkSolid, color: rgbx(255, 0, 0, 255), blendMode: bmNormal)
rgbx(255, 0, 0, 255)
)
let paint = newPaint(pkSolid)
paint.color = rgbx(0, 255, 0, 255)
paint.blendMode = bmExcludeMask
image.fillPath(
"M 30.1 30.1 H 80.1 V 80.1 H 30.1 z",
Paint(kind: pkSolid, color: rgbx(0, 255, 0, 255), blendMode: bmExcludeMask)
paint
)
image.writeFile("tests/images/paths/rectExcludeMaskAA.png")
@ -391,11 +401,16 @@ block:
let image = newImage(100, 100)
image.fillPath(
"M 10 10 H 60 V 60 H 10 z",
Paint(kind: pkSolid, color: rgbx(255, 0, 0, 255), blendMode: bmNormal)
rgbx(255, 0, 0, 255)
)
let paint = newPaint(pkSolid)
paint.color = rgbx(0, 255, 0, 255)
paint.blendMode = bmMask
image.fillPath(
"M 30 30 H 80 V 80 H 30 z",
Paint(kind: pkSolid, color: rgbx(0, 255, 0, 255), blendMode: bmMask)
paint
)
image.writeFile("tests/images/paths/rectMask.png")
@ -403,11 +418,16 @@ block:
let image = newImage(100, 100)
image.fillPath(
"M 10.1 10.1 H 60.1 V 60.1 H 10.1 z",
Paint(kind: pkSolid, color: rgbx(255, 0, 0, 255), blendMode: bmNormal)
rgbx(255, 0, 0, 255)
)
let paint = newPaint(pkSolid)
paint.color = rgbx(0, 255, 0, 255)
paint.blendMode = bmMask
image.fillPath(
"M 30.1 30.1 H 80.1 V 80.1 H 30.1 z",
Paint(kind: pkSolid, color: rgbx(0, 255, 0, 255), blendMode: bmMask)
paint
)
image.writeFile("tests/images/paths/rectMaskAA.png")
@ -573,7 +593,8 @@ block:
let path = newPath()
path.circle(50, 50, 30)
var paint = Paint(kind: pkSolid, color: rgba(255, 0, 255, 255))
let paint = newPaint(pkSolid)
paint.color = rgba(255, 0, 255, 255)
paint.opacity = 0.5
let image = newImage(100, 100)
@ -585,7 +606,8 @@ block:
let path = newPath()
path.circle(50, 50, 30)
var paint = Paint(kind: pkSolid, color: rgba(255, 0, 255, 255))
let paint = newPaint(pkSolid)
paint.color = rgba(255, 0, 255, 255)
paint.opacity = 0.5
let image = newImage(100, 100)