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43 lines
1.3 KiB
Go
43 lines
1.3 KiB
Go
// Copyright 2017 Baliance. All rights reserved.
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//
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// Use of this source code is governed by the terms of the Affero GNU General
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// Public License version 3.0 as published by the Free Software Foundation and
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// appearing in the file LICENSE included in the packaging of this file. A
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// commercial license can be purchased by contacting sales@baliance.com.
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package color
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import (
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"baliance.com/gooxml"
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)
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// Color is a 24 bit color that can be converted to
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// internal ECMA-376 formats as needed.
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type Color struct {
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r, g, b, a uint8
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isAuto bool
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}
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// RGB constructs a new RGB color with a given red, green and blue value.
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func RGB(r, g, b uint8) Color {
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return Color{r, g, b, 255, false}
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}
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// IsAuto returns true if the color is the 'Auto' type. If the
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// field doesn't support an Auto color, then black is used.
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func (c Color) IsAuto() bool {
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return c.isAuto
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}
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// AsRGBString is used by the various wrappers to return a pointer
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// to a string containing a six digit hex RGB value.
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func (c Color) AsRGBString() *string {
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return gooxml.Stringf("%02x%02x%02x", c.r, c.g, c.b)
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}
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// AsRGBAString is used by the various wrappers to return a pointer
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// to a string containing a six digit hex RGB value.
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func (c Color) AsRGBAString() *string {
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return gooxml.Stringf("%02x%02x%02x%02x", c.a, c.r, c.g, c.b)
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}
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