mirror of
https://github.com/xiaoqidun/ofdgo.git
synced 2026-08-30 12:12:40 +08:00
103 lines
2.9 KiB
Go
103 lines
2.9 KiB
Go
// Copyright 2025-2026 肖其顿 (XIAO QI DUN)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package ofdgo
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import (
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"image/color"
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"strconv"
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"strings"
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)
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// parseColor 解析颜色字符串
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// 入参: val 颜色值(R G B)
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// 返回: color.Color 颜色对象
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func parseColor(val string) color.Color {
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return parseColorWithAlpha(val, nil)
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}
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// parseColorWithAlpha 解析带透明度的颜色
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// 入参: val 颜色值, alpha 透明度
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// 返回: color.Color 颜色对象
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func parseColorWithAlpha(val string, alpha *int) color.Color {
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parts := strings.Fields(val)
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if len(parts) >= 3 {
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r, _ := strconv.Atoi(parts[0])
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g, _ := strconv.Atoi(parts[1])
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b, _ := strconv.Atoi(parts[2])
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a := 255
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if alpha != nil {
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a = *alpha
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}
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return color.RGBA{R: uint8(r), G: uint8(g), B: uint8(b), A: uint8(a)}
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}
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return color.Black
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}
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// parseFillColor 解析填充颜色
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// 入参: fillColor 填充颜色节点
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// 返回: color.Color 颜色对象
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func parseFillColor(fillColor *FillColor) color.Color {
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if fillColor == nil {
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return nil
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}
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if strings.TrimSpace(fillColor.Value) != "" {
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return parseColorWithAlpha(fillColor.Value, fillColor.Alpha)
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}
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return parseAxialShdColor(fillColor.AxialShd, fillColor.Alpha)
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}
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// parseStrokeColor 解析勾边颜色
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// 入参: strokeColor 勾边颜色节点
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// 返回: color.Color 颜色对象
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func parseStrokeColor(strokeColor *StrokeColor) color.Color {
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if strokeColor == nil {
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return nil
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}
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if strings.TrimSpace(strokeColor.Value) != "" {
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return parseColorWithAlpha(strokeColor.Value, strokeColor.Alpha)
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}
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return parseAxialShdColor(strokeColor.AxialShd, strokeColor.Alpha)
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}
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// parseAxialShdColor 解析轴向渐变颜色
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// 入参: axialShd 轴向渐变节点, alpha 透明度
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// 返回: color.Color 颜色对象
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func parseAxialShdColor(axialShd *AxialShd, alpha *int) color.Color {
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if axialShd != nil {
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for _, segment := range axialShd.Segment {
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if strings.TrimSpace(segment.Color.Value) == "" {
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continue
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}
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if alpha == nil {
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alpha = segment.Color.Alpha
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}
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return parseColorWithAlpha(segment.Color.Value, alpha)
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}
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}
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return color.Black
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}
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// GetDeltaX 获取X轴偏移量数组
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// 返回: []float64 偏移量数组
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func (tc *TextCode) GetDeltaX() []float64 {
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return parseFloats(tc.DeltaX)
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}
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// GetDeltaY 获取Y轴偏移量数组
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// 返回: []float64 偏移量数组
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func (tc *TextCode) GetDeltaY() []float64 {
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return parseFloats(tc.DeltaY)
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}
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