35 lines
792 B
Go
35 lines
792 B
Go
package main
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import (
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"errors"
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"fmt"
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)
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func ConvertStringToColour(colourStr string) (int, error) {
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if len(colourStr) == 0 {
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return 0xFF0000, nil // Default colour if no string is provided
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}
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if colourStr[0] == '#' {
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colourStr = colourStr[1:]
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}
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if len(colourStr) != 6 && len(colourStr) != 3 {
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return 0, errors.New("colour must be a valid hex string")
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}
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var colour int
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_, err := fmt.Sscanf(colourStr, "%x", &colour)
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if err != nil {
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return 0, fmt.Errorf("invalid colour format: %v", err)
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}
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if len(colourStr) == 3 {
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r := (colour & 0xF00) >> 8
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g := (colour & 0x0F0) >> 4
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b := (colour & 0x00F) >> 0
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colour = (r << 16 << 4) | (g << 8 << 4) | (b << 0 << 4)
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}
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return colour, nil
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}
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func ConvertColourToString(colour int) string {
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return fmt.Sprintf("#%06X", colour)
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}
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