The purpose of this repository is to provide a way for people to create placeholder images quickly.
https://www.craigoates.net/Software/project/11
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34 lines
1.2 KiB
34 lines
1.2 KiB
namespace SmoulderingBeachBall |
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module ImageMaker = |
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open System |
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open System.Drawing |
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open System.IO |
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let private validateDimension dimension = |
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match dimension with |
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| dimension when dimension <= 0 -> invalidArg "dimension" "The width and height must be greater than 0." |
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| _ -> () |
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let private validateDirectory filePath = |
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let path = Path.GetDirectoryName filePath |
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match (Directory.Exists path) with |
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| false -> invalidArg "filePath" "Unable to save to the specified location because it does not exist." |
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| true -> () |
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let makeImage width height colour filepath = |
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async { |
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try |
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validateDimension width |
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validateDimension height |
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validateDirectory filepath |
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use bitmap = new Bitmap(width, height) |
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use graphics = Graphics.FromImage(bitmap) |
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graphics.FillRectangle(colour, new Rectangle(0, 0, bitmap.Width, bitmap.Height)) |
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bitmap.Save(filepath) |
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return "Image saved." |
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with |
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| :? ArgumentException as ex -> return ex.Message |
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| _ as ex -> return ex.Message |
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} |