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decodeSvg xml

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This commit is contained in:
Ryan Oldenburg 2022-01-05 17:20:05 -06:00
parent 8970222645
commit a0244c98de
1 changed files with 15 additions and 6 deletions
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21
src/pixie/fileformats/svg.nim
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@ -561,11 +561,10 @@ proc draw(img: Image, node: XmlNode, ctxStack: var seq[Ctx]) =
raise currentExceptionAsPixieError()
proc decodeSvg*(
data: string, width = 0, height = 0
root: XmlNode, width = 0, height = 0
): Image {.raises: [PixieError].} =
## Render SVG file and return the image. Defaults to the SVG's view box size.
## Render SVG XML and return the image. Defaults to the SVG's view box size.
try:
let root = parseXml(data)
if root.tag != "svg":
failInvalid()
@ -581,9 +580,8 @@ proc decodeSvg*(
rootCtx = decodeCtx(rootCtx, root)
if viewBoxMinX != 0 or viewBoxMinY != 0:
rootCtx.transform = rootCtx.transform * translate(
vec2(-viewBoxMinX.float32, -viewBoxMinY.float32)
)
let viewBoxMin = vec2(-viewBoxMinX.float32, -viewBoxMinY.float32)
rootCtx.transform = rootCtx.transform * translate(viewBoxMin)
if width == 0 and height == 0: # Default to the view box size
result = newImage(viewBoxWidth, viewBoxHeight)
@ -602,3 +600,14 @@ proc decodeSvg*(
raise e
except:
raise newException(PixieError, "Unable to load SVG")
proc decodeSvg*(
data: string, width = 0, height = 0
): Image {.raises: [PixieError].} =
## Render SVG data and return the image. Defaults to the SVG's view box size.
let root =
try:
parseXml(data)
except:
raise currentExceptionAsPixieError()
decodeSvg(root)