mirror of
https://github.com/xiaoqidun/ofdgo.git
synced 2026-10-29 14:31:12 +08:00
124 lines
3.7 KiB
Go
124 lines
3.7 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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"encoding/xml"
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"strconv"
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"strings"
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)
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// UnmarshalXML 解析字形变换，省略的字符数和字形数均取1
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// 入参: decoder XML解码器, start 变换起始节点
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// 返回: error 解码错误
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func (transform *CGTransform) UnmarshalXML(decoder *xml.Decoder, start xml.StartElement) error {
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*transform = CGTransform{CodeCount: 1, GlyphCount: 1}
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for _, attr := range start.Attr {
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if attr.Name.Space != "" {
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continue
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}
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var target *int
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switch attr.Name.Local {
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case "CodePosition":
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target = &transform.CodePosition
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case "CodeCount":
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target = &transform.CodeCount
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case "GlyphCount":
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target = &transform.GlyphCount
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}
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if target != nil {
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value, err := strconv.Atoi(strings.TrimSpace(attr.Value))
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if err != nil {
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return err
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}
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*target = value
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}
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}
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return decodeOFDChildren(decoder, start, func(d *xml.Decoder, node xml.StartElement) error {
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if node.Name.Local == "Glyphs" {
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return d.DecodeElement(&transform.Glyphs, &node)
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}
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return d.Skip()
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})
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}
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// UnmarshalXML 解析文字定位及原文，不使用带外部命名空间的定位属性
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// 入参: decoder XML解码器, start 文字节点
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// 返回: error 解码错误
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func (code *TextCode) UnmarshalXML(decoder *xml.Decoder, start xml.StartElement) error {
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type plain TextCode
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var value plain
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start = ofdXMLStart(start)
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if err := decoder.DecodeElement(&value, &start); err != nil {
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return err
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}
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*code = TextCode(value)
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return nil
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}
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// UnmarshalXML 解析标准文字节点，将各TextCode前的局部字形位置统一为对象内索引
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// 入参: decoder XML解码器, start 对象起始节点
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// 返回: error 解码错误
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func (obj *TextObject) UnmarshalXML(decoder *xml.Decoder, start xml.StartElement) error {
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type plain TextObject
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var value plain
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if err := decodeGraphicAttributes(start, &value); err != nil {
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return err
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}
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offset, pending := 0, 0
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if err := decodeOFDChildren(decoder, start, func(d *xml.Decoder, node xml.StartElement) error {
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switch node.Name.Local {
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case "FillColor":
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return d.DecodeElement(&value.FillColor, &node)
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case "StrokeColor":
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return d.DecodeElement(&value.StrokeColor, &node)
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case "Clips":
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return d.DecodeElement(&value.Clips, &node)
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case "Actions":
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return decodeOFDActions(d, node, &value.Actions)
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case "CGTransform":
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return d.DecodeElement(&value.CGTransform, &node)
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case "TextCode":
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var code TextCode
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if err := d.DecodeElement(&code, &node); err != nil {
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return err
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}
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for i := pending; i < len(value.CGTransform); i++ {
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value.CGTransform[i].CodePosition += offset
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}
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pending = len(value.CGTransform)
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offset += len(textCodeRunes(code.Value))
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value.TextCode = append(value.TextCode, code)
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return nil
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}
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return d.Skip()
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}); err != nil {
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return err
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}
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*obj = TextObject(value)
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for _, attr := range ofdXMLStart(start).Attr {
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if attr.Name.Local == "LineWidth" {
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obj.LineWidthSet = obj.LineWidth == 0
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}
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if attr.Name.Local == "MiterLimit" {
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obj.MiterLimitSet = obj.MiterLimit == 0
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}
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if attr.Name.Local == "DashPattern" {
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obj.dashPatternSet = obj.DashPattern == ""
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}
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}
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return nil
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}
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