357 lines
8.8 KiB
Nim
357 lines
8.8 KiB
Nim
import chroma, pixie, pixie/fileformats/png, strformat
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block:
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let pathStr = """
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m 1 2 3 4 5 6
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"""
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let path = parsePath(pathStr)
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doAssert $path == "m1 2 l3 4 l5 6"
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block:
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let pathStr = """
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l 1 2 3 4 5 6
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"""
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let path = parsePath(pathStr)
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doAssert $path == "l1 2 l3 4 l5 6"
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block:
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let pathStr = """
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m 1 2
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l 3 4
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h 5
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v 6
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c 0 0 0 0 0 0
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q 1 1 1 1
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t 2 2
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a 7 7 7 7 7 7 7
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z
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"""
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let path = parsePath(pathStr)
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doAssert $path == "m1 2 l3 4 h5 v6 c0 0 0 0 0 0 q1 1 1 1 t2 2 a7 7 7 7 7 7 7 Z"
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block:
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let pathStr = """
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M 1 2
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L 3 4
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H 5
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V 6
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C 0 0 0 0 0 0
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Q 1 1 1 1
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T 2 2
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A 7 7 7 7 7 7 7
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z
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"""
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let path = parsePath(pathStr)
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doAssert $path == "M1 2 L3 4 H5 V6 C0 0 0 0 0 0 Q1 1 1 1 T2 2 A7 7 7 7 7 7 7 Z"
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block:
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let
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pathStr = "M 0.1E-10 0.1e10 L2+2 L3-3 L0.1E+10-1"
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path = parsePath(pathStr)
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block:
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let
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image = newImage(100, 100)
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pathStr = "M 10 10 L 90 90"
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color = rgba(255, 0, 0, 255)
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image.strokePath(pathStr, color, strokeWidth = 10)
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image.writeFile("tests/images/paths/pathStroke1.png")
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block:
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let
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image = newImage(100, 100)
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pathStr = "M 10 10 L 50 60 90 90"
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color = rgba(255, 0, 0, 255)
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image.strokePath(pathStr, color, strokeWidth = 10)
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image.writeFile("tests/images/paths/pathStroke2.png")
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block:
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let image = newImage(100, 100)
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image.strokePath(
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"M 15 10 L 30 90 60 30 90 90",
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rgba(255, 255, 0, 255),
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strokeWidth = 10
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)
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image.writeFile("tests/images/paths/pathStroke3.png")
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block:
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let
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image = newImage(100, 100)
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pathStr = "M 10 10 H 90 V 90 H 10 L 10 10"
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color = rgba(0, 0, 0, 255)
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image.fillPath(pathStr, color)
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image.writeFile("tests/images/paths/pathBlackRectangle.png")
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block:
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let
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image = newImage(100, 100)
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pathStr = "M 10 10 H 90 V 90 H 10 Z"
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color = rgba(0, 0, 0, 255)
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image.fillPath(parsePath(pathStr), color)
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image.writeFile("tests/images/paths/pathBlackRectangleZ.png")
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block:
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let image = newImage(100, 100)
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image.fillPath(
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"M 10 10 H 90 V 90 H 10 L 10 10",
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rgba(255, 255, 0, 255)
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)
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image.writeFile("tests/images/paths/pathYellowRectangle.png")
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block:
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var path: Path
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path.moveTo(10, 10)
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path.lineTo(10, 90)
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path.lineTo(90, 90)
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path.lineTo(90, 10)
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path.lineTo(10, 10)
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let image = newImage(100, 100)
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image.fillPath(path, rgba(255, 0, 0, 255))
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image.writeFile("tests/images/paths/pathRedRectangle.png")
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block:
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let image = newImage(100, 100)
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image.fillPath(
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"M30 60 A 20 20 0 0 0 90 60 L 30 60",
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parseHtmlColor("#FC427B").rgba
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)
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image.writeFile("tests/images/paths/pathBottomArc.png")
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block:
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let image = newImage(100, 100)
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image.fillPath(
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"""
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M 10,30
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A 20,20 0,0,1 50,30
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A 20,20 0,0,1 90,30
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Q 90,60 50,90
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Q 10,60 10,30 z
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""",
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parseHtmlColor("#FC427B").rgba
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)
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image.writeFile("tests/images/paths/pathHeart.png")
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block:
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let image = newImage(100, 100)
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image.fillPath(
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"M 20 50 A 20 10 45 1 1 80 50 L 20 50",
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parseHtmlColor("#FC427B").rgba
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)
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image.writeFile("tests/images/paths/pathRotatedArc.png")
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block:
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let image = newImage(100, 100)
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image.fillPath(
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"M 0 50 A 50 50 0 0 0 50 0 L 50 50 L 0 50",
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parseHtmlColor("#FC427B").rgba
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)
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image.writeFile("tests/images/paths/pathInvertedCornerArc.png")
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block:
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let image = newImage(100, 100)
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image.fillPath(
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"M 0 50 A 50 50 0 0 1 50 0 L 50 50 L 0 50",
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parseHtmlColor("#FC427B").rgba
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)
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image.writeFile("tests/images/paths/pathCornerArc.png")
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# block:
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# let
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# image = newImage(100, 100)
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# r = 10.0
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# x = 10.0
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# y = 10.0
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# h = 80.0
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# w = 80.0
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# var path: Path
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# path.moveTo(x + r, y)
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# path.arcTo(x + w, y, x + w, y + h, r)
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# path.arcTo(x + w, y + h, x, y + h, r)
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# path.arcTo(x, y + h, x, y, r)
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# path.arcTo(x, y, x + w, y, r)
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# image.fillPath(path, rgba(255, 0, 0, 255))
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# image.writeFile("tests/images/paths/pathRoundRect.png")
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block:
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let
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mask = newMask(100, 100)
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pathStr = "M 10 10 H 90 V 90 H 10 L 10 10"
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mask.fillPath(pathStr)
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writeFile("tests/images/paths/pathRectangleMask.png", mask.encodePng())
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# block:
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# let
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# mask = newMask(100, 100)
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# r = 10.0
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# x = 10.0
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# y = 10.0
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# h = 80.0
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# w = 80.0
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# var path: Path
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# path.moveTo(x + r, y)
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# path.arcTo(x + w, y, x + w, y + h, r)
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# path.arcTo(x + w, y + h, x, y + h, r)
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# path.arcTo(x, y + h, x, y, r)
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# path.arcTo(x, y, x + w, y, r)
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# mask.fillPath(path)
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# writeFile("tests/images/paths/pathRoundRectMask.png", mask.encodePng())
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block:
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let image = newImage(200, 200)
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image.fill(rgba(255, 255, 255, 255))
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var p = parsePath("M1 0.5C1 0.776142 0.776142 1 0.5 1C0.223858 1 0 0.776142 0 0.5C0 0.223858 0.223858 0 0.5 0C0.776142 0 1 0.223858 1 0.5Z")
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image.fillPath(p, rgba(255, 0, 0, 255), scale(vec2(200, 200)))
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image.strokePath(p, rgba(0, 255, 0, 255), scale(vec2(200, 200)),
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strokeWidth = 0.01)
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image.writeFile("tests/images/paths/pixelScale.png")
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block:
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let
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image = newImage(60, 60)
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path = parsePath("M 3 3 L 20 3 L 20 20 L 3 20 Z")
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image.fill(rgba(255, 255, 255, 255))
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image.strokePath(path, rgba(0, 0, 0, 255), vec2(10, 10), 10, lcRound, ljRound)
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image.writeFile("tests/images/paths/boxRound.png")
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block:
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let
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image = newImage(60, 60)
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path = parsePath("M 3 3 L 20 3 L 20 20 L 3 20 Z")
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image.fill(rgba(255, 255, 255, 255))
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image.strokePath(path, rgba(0, 0, 0, 255), vec2(10, 10), 10, lcRound, ljBevel)
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image.writeFile("tests/images/paths/boxBevel.png")
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block:
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let
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image = newImage(60, 60)
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path = parsePath("M 3 3 L 20 3 L 20 20 L 3 20 Z")
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image.fill(rgba(255, 255, 255, 255))
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image.strokePath(path, rgba(0, 0, 0, 255), vec2(10, 10), 10, lcRound, ljMiter)
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image.writeFile("tests/images/paths/boxMiter.png")
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block:
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let
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image = newImage(60, 60)
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path = parsePath("M 3 3 L 20 3 L 20 20 L 3 20")
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image.fill(rgba(255, 255, 255, 255))
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image.strokePath(path, rgba(0, 0, 0, 255), vec2(10, 10), 10, lcButt, ljBevel)
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image.writeFile("tests/images/paths/lcButt.png")
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block:
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let
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image = newImage(60, 60)
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path = parsePath("M 3 3 L 20 3 L 20 20 L 3 20")
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image.fill(rgba(255, 255, 255, 255))
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image.strokePath(path, rgba(0, 0, 0, 255), vec2(10, 10), 10, lcRound, ljBevel)
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image.writeFile("tests/images/paths/lcRound.png")
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block:
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let
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image = newImage(60, 60)
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path = parsePath("M 3 3 L 20 3 L 20 20 L 3 20")
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image.fill(rgba(255, 255, 255, 255))
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image.strokePath(path, rgba(0, 0, 0, 255), vec2(10, 10), 10, lcSquare, ljBevel)
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image.writeFile("tests/images/paths/lcSquare.png")
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block:
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let
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image = newImage(60, 120)
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path = parsePath("M 0 0 L 50 0")
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image.fill(rgba(255, 255, 255, 255))
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image.strokePath(
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path, rgba(0, 0, 0, 255), vec2(5, 5), 10, lcButt, ljBevel,
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)
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image.strokePath(
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path, rgba(0, 0, 0, 255), vec2(5, 25), 10, lcButt, ljBevel,
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dashes = @[2.float32, 2]
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)
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image.strokePath(
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path, rgba(0, 0, 0, 255), vec2(5, 45), 10, lcButt, ljBevel,
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dashes = @[4.float32, 4]
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)
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image.strokePath(
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path, rgba(0, 0, 0, 255), vec2(5, 65), 10, lcButt, ljBevel,
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dashes = @[2.float32, 4, 6, 2]
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)
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image.strokePath(
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path, rgba(0, 0, 0, 255), vec2(5, 85), 10, lcButt, ljBevel,
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dashes = @[1.float32]
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)
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image.strokePath(
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path, rgba(0, 0, 0, 255), vec2(5, 105), 10, lcButt, ljBevel,
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dashes = @[1.float32, 2, 3, 4, 5, 6, 7, 8, 9]
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)
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image.writeFile("tests/images/paths/dashes.png")
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block:
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proc miterTest(angle, limit: float32) =
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let
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image = newImage(60, 60)
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image.fill(rgba(255, 255, 255, 255))
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var path: Path
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path.moveTo(-20, 0)
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path.lineTo(0, 0)
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let th = angle.float32.degToRad() + PI/2
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path.lineTo(sin(th)*20, cos(th)*20)
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image.strokePath(
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path, rgba(0, 0, 0, 255), vec2(30, 30), 8, lcButt, ljMiter,
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miterLimit = limit
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)
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image.writeFile(&"tests/images/paths/miterLimit_{angle.int}deg_{limit:0.2f}num.png")
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miterTest(10, 2)
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miterTest(145, 2)
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miterTest(155, 2)
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miterTest(165, 2)
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miterTest(165, 10)
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miterTest(145, 3.32)
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miterTest(145, 3.33)
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# Potential error cases, ensure they do not crash
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block:
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let
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image = newImage(60, 60)
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path = parsePath("M 3 3 L 3 3 L 3 3")
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image.fill(rgba(255, 255, 255, 255))
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image.strokePath(path, rgba(0, 0, 0, 255), vec2(10, 10), 10, lcSquare, ljMiter)
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block:
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let
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image = newImage(60, 60)
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path = parsePath("L 0 0 L 0 0")
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image.fill(rgba(255, 255, 255, 255))
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image.strokePath(path, rgba(0, 0, 0, 255), vec2(10, 10), 10, lcSquare, ljMiter)
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block:
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let
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image = newImage(60, 60)
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path = parsePath("L 1 1")
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image.fill(rgba(255, 255, 255, 255))
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image.strokePath(path, rgba(0, 0, 0, 255), vec2(10, 10), 10, lcSquare, ljMiter)
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block:
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let
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image = newImage(60, 60)
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path = parsePath("L 0 0")
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image.fill(rgba(255, 255, 255, 255))
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image.strokePath(path, rgba(0, 0, 0, 255), vec2(10, 10), 10, lcSquare, ljMiter)
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