68 lines
1.7 KiB
Go
68 lines
1.7 KiB
Go
/*
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* Copyright (c) 2013-2021 Utkan Güngördü <utkan@freeconsole.org>
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* Copyright (c) 2021-2023 Piotr Grabowski
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package gomicsv
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import (
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"fmt"
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"math"
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"github.com/gotk3/gotk3/gdk"
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)
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type Color struct {
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R byte `json:"R"`
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G byte `json:"G"`
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B byte `json:"B"`
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A byte `json:"A"`
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}
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func NewColorFromGdkRGBA(rgba *gdk.RGBA) Color {
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return Color{
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R: colorFloat64ToByte(rgba.GetRed()),
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G: colorFloat64ToByte(rgba.GetGreen()),
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B: colorFloat64ToByte(rgba.GetBlue()),
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A: colorFloat64ToByte(rgba.GetAlpha()),
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}
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}
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func (color Color) ToCSS() string {
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return fmt.Sprintf("rgba(%d, %d, %d, %d)", color.R, color.G, color.B, color.A)
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}
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func (color Color) ToPixelInt() uint32 {
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return uint32(color.R)<<24 + uint32(color.G)<<16 + uint32(color.B)<<8 + uint32(color.A)
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}
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func (color Color) ToGdkRGBA() gdk.RGBA {
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return *gdk.NewRGBA(
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colorByteToFloat64(color.R),
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colorByteToFloat64(color.G),
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colorByteToFloat64(color.B),
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colorByteToFloat64(color.A),
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)
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}
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func colorFloat64ToByte(f float64) byte {
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return byte(math.Round(f * 255.0))
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}
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func colorByteToFloat64(b byte) float64 {
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return float64(b) / 255.0
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}
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