mirror of
https://github.com/xiaoqidun/ofdgo.git
synced 2026-10-29 14:53:44 +08:00
65 lines
2.3 KiB
Go
65 lines
2.3 KiB
Go
// Copyright 2025-2026 肖其顿 (XIAO QI DUN)
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package ofdgo
|
|
|
|
import (
|
|
"bytes"
|
|
|
|
basefont "github.com/xiaoqidun/ofdgo/internal/base/font"
|
|
)
|
|
|
|
// appendFontFileNames 建立各字体的内部名称与文件别名匹配候选
|
|
// 入参: candidates 字体候选, index 文件候选索引, faces 各字体内部名称
|
|
// 返回: []fontFileCandidate 字体候选列表
|
|
func appendFontFileNames(candidates []fontFileCandidate, index int, faces [][]string) []fontFileCandidate {
|
|
file := candidates[index]
|
|
replaced := false
|
|
for face, names := range faces {
|
|
file.face = face
|
|
file.names = make([]string, len(names))
|
|
for i, name := range names {
|
|
file.names[i] = basefont.NormalizeName(name)
|
|
}
|
|
for _, name := range file.names {
|
|
file.normalized = name
|
|
if !replaced {
|
|
candidates[index] = file
|
|
replaced = true
|
|
} else {
|
|
candidates = append(candidates, file)
|
|
}
|
|
}
|
|
}
|
|
return candidates
|
|
}
|
|
|
|
// fontCollectionIndex 按内部名称与样式选择集合项，未匹配时保留首项
|
|
// 入参: data 集合数据, names 字体名称, bold 是否粗体, italic 是否斜体
|
|
// 返回: int 零起始字体索引
|
|
func fontCollectionIndex(data []byte, names []string, bold, italic bool) int {
|
|
return fontNameIndex(basefont.FileNames(bytes.NewReader(data)), names, bold, italic)
|
|
}
|
|
|
|
// fontNameIndex 按名称与样式选择字体索引，未匹配时保留首项
|
|
// 入参: faces 各字体名称, names 目标名称, bold 是否粗体, italic 是否斜体
|
|
// 返回: int 零起始字体索引
|
|
func fontNameIndex(faces [][]string, names []string, bold, italic bool) int {
|
|
candidates := appendFontFileNames([]fontFileCandidate{{}}, 0, faces)
|
|
if matches := fontFileMatches(candidates, names, bold, italic); len(matches) > 0 {
|
|
return matches[0].face
|
|
}
|
|
return 0
|
|
}
|