mirror of
https://github.com/xiaoqidun/ofdgo.git
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330 lines
11 KiB
Go
330 lines
11 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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"fmt"
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)
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// PageContent 页面内容
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type PageContent struct {
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XMLName xml.Name `xml:"Page"`
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ID string `xml:"-"`
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Area PageArea `xml:"Area"`
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Template []Template `xml:"Template"`
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PageRes []string `xml:"PageRes"`
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Content Content `xml:"Content"`
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Actions []Action `xml:"Actions>Action"`
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}
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// Template 页面模板引用
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type Template struct {
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TemplateID string `xml:"TemplateID,attr"`
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ZOrder string `xml:"ZOrder,attr"`
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}
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// Content 页面内容节点
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type Content struct {
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Layer []Layer `xml:"Layer"`
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}
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// Layer 图层
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// Objects非空时按其顺序渲染，图元修改应作用于Objects中的对象
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type Layer struct {
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ID string `xml:"ID,attr"`
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Type string `xml:"Type,attr"`
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DrawParam string `xml:"DrawParam,attr"`
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Objects []GraphicObject `xml:"-"`
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TextObject []TextObject `xml:"TextObject"`
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PathObject []PathObject `xml:"PathObject"`
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ImageObject []ImageObject `xml:"ImageObject"`
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CompositeGraphicUnit []CompositeGraphicUnit `xml:"CompositeGraphicUnit"`
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}
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// GraphicObject 图形对象
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type GraphicObject struct {
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Type string
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TextObject TextObject
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PathObject PathObject
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ImageObject ImageObject
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CompositeGraphicUnit CompositeGraphicUnit
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origin *editorObjectOrigin
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state editorCompositeState
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richText *richTextSnapshot
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}
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// Clips 相对于对象外接矩形的裁剪集合
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// TransFlag仅兼容旧式扩展，写入时折算为Area的CTM
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type Clips struct {
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TransFlag *bool `xml:"TransFlag,attr"`
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Clip []Clip `xml:"Clip"`
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}
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// Clip 裁剪
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type Clip struct {
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Area []ClipArea `xml:"Area"`
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}
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// ClipArea 裁剪区域
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type ClipArea struct {
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DrawParam string `xml:"DrawParam,attr"`
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CTM string `xml:"CTM,attr"`
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Path []PathObject `xml:"Path"`
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Text []TextObject `xml:"Text"`
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}
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// TextObject 文本对象
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// MiterLimitSet为true时，零截断值覆盖继承值，否则零值表示未指定
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type TextObject struct {
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ID string `xml:"ID,attr"`
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Boundary string `xml:"Boundary,attr"`
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DrawParam string `xml:"DrawParam,attr"`
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LineWidth float64 `xml:"LineWidth,attr"`
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Cap string `xml:"Cap,attr"`
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DashPattern string `xml:"DashPattern,attr"`
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DashOffset *float64 `xml:"DashOffset,attr"`
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Join string `xml:"Join,attr"`
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MiterLimit float64 `xml:"MiterLimit,attr"`
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Font string `xml:"Font,attr"`
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Size float64 `xml:"Size,attr"`
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Weight int `xml:"Weight,attr"`
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Italic bool `xml:"Italic,attr"`
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Decoration string `xml:"Decoration,attr"`
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HScale float64 `xml:"HScale,attr"`
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VScale float64 `xml:"VScale,attr"`
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ReadDirection int `xml:"ReadDirection,attr"`
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CharDirection int `xml:"CharDirection,attr"`
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CTM string `xml:"CTM,attr"`
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Alpha *int `xml:"Alpha,attr"`
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Visible *bool `xml:"Visible,attr"`
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Fill *bool `xml:"Fill,attr"`
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Stroke *bool `xml:"Stroke,attr"`
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StrokeColor *StrokeColor `xml:"StrokeColor"`
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FillColor *FillColor `xml:"FillColor"`
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CGTransform []CGTransform `xml:"CGTransform"`
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TextCode []TextCode `xml:"TextCode"`
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Clips *Clips `xml:"Clips"`
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Actions []Action `xml:"Actions>Action"`
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LineWidthSet bool `xml:"-"`
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MiterLimitSet bool `xml:"-"`
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dashPatternSet bool
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layout *textLayout
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}
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// FillColor 填充颜色
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type FillColor struct {
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Value string `xml:"Value,attr"`
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Index *int `xml:"Index,attr"`
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ColorSpace string `xml:"ColorSpace,attr"`
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Alpha *int `xml:"Alpha,attr"`
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Pattern *Pattern `xml:"Pattern"`
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AxialShd *AxialShd `xml:"AxialShd"`
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RadialShd *RadialShd `xml:"RadialShd"`
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GouraudShd *GouraudShd `xml:"GouraudShd"`
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LaGouraudShd *LaGouraudShd `xml:"LaGouraudShd"`
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unsupported bool
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}
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// Pattern 图案填充
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type Pattern struct {
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Width float64 `xml:"Width,attr"`
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Height float64 `xml:"Height,attr"`
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XStep float64 `xml:"XStep,attr"`
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YStep float64 `xml:"YStep,attr"`
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ReflectMethod string `xml:"ReflectMethod,attr"`
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RelativeTo string `xml:"RelativeTo,attr"`
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CTM string `xml:"CTM,attr"`
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CellContent PatternContent `xml:"CellContent"`
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}
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// PatternContent 图案单元内容
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// Objects非空时保留绘制顺序，否则依次使用文字、路径、图片和复合图元数组
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type PatternContent struct {
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Thumbnail string `xml:"Thumbnail,attr"`
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Objects []GraphicObject `xml:"-"`
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TextObject []TextObject `xml:"TextObject"`
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PathObject []PathObject `xml:"PathObject"`
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ImageObject []ImageObject `xml:"ImageObject"`
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CompositeGraphicUnit []CompositeGraphicUnit `xml:"CompositeGraphicUnit"`
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}
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// TextCode 文本内容节点
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type TextCode struct {
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X string `xml:"X,attr"`
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Y string `xml:"Y,attr"`
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DeltaX string `xml:"DeltaX,attr"`
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DeltaY string `xml:"DeltaY,attr"`
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Index string `xml:"Index,attr"`
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Value string `xml:",chardata"`
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}
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// CGTransform 字符到字形的映射
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// CodePosition在内存中为整个TextObject的字符索引，保存时转换为所在TextCode的局部索引
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type CGTransform struct {
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CodePosition int `xml:"CodePosition,attr"`
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CodeCount int `xml:"CodeCount,attr"`
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GlyphCount int `xml:"GlyphCount,attr"`
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Glyphs string `xml:"Glyphs"`
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}
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// PathObject 路径对象
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// MiterLimitSet为true时，零截断值覆盖继承值，否则零值表示未指定
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type PathObject struct {
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ID string `xml:"ID,attr"`
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Boundary string `xml:"Boundary,attr"`
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DrawParam string `xml:"DrawParam,attr"`
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LineWidth float64 `xml:"LineWidth,attr"`
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Join string `xml:"Join,attr"`
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Cap string `xml:"Cap,attr"`
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DashOffset *float64 `xml:"DashOffset,attr"`
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DashPattern string `xml:"DashPattern,attr"`
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MiterLimit float64 `xml:"MiterLimit,attr"`
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CTM string `xml:"CTM,attr"`
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Alpha *int `xml:"Alpha,attr"`
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Visible *bool `xml:"Visible,attr"`
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Stroke *bool `xml:"Stroke,attr"`
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Fill *bool `xml:"Fill,attr"`
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Rule string `xml:"Rule,attr"`
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StrokeColor *StrokeColor `xml:"StrokeColor"`
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FillColor *FillColor `xml:"FillColor"`
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AbbreviatedData string `xml:"AbbreviatedData"`
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Clips *Clips `xml:"Clips"`
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Actions []Action `xml:"Actions>Action"`
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LineWidthSet bool `xml:"-"`
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MiterLimitSet bool `xml:"-"`
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dashPatternSet bool
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}
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// StrokeColor 勾边颜色
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type StrokeColor FillColor
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// AxialShd 轴向渐变
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type AxialShd struct {
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MapType string `xml:"MapType,attr"`
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MapUnit float64 `xml:"MapUnit,attr"`
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Extend string `xml:"Extend,attr"`
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StartPoint string `xml:"StartPoint,attr"`
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EndPoint string `xml:"EndPoint,attr"`
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Segment []ShdSegment `xml:"Segment"`
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}
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// RadialShd 径向渐变
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type RadialShd struct {
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MapType string `xml:"MapType,attr"`
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MapUnit float64 `xml:"MapUnit,attr"`
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Eccentricity float64 `xml:"Eccentricity,attr"`
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Angle float64 `xml:"Angle,attr"`
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Extend string `xml:"Extend,attr"`
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StartPoint string `xml:"StartPoint,attr"`
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StartRadius float64 `xml:"StartRadius,attr"`
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EndPoint string `xml:"EndPoint,attr"`
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EndRadius float64 `xml:"EndRadius,attr"`
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Segment []ShdSegment `xml:"Segment"`
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}
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// ShdSegment 渐变分段
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type ShdSegment struct {
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Position float64 `xml:"Position,attr"`
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Color ShdColor `xml:"Color"`
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positionMissing bool
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}
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// ShdColor 渐变颜色
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type ShdColor struct {
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Value string `xml:"Value,attr"`
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Index *int `xml:"Index,attr"`
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ColorSpace string `xml:"ColorSpace,attr"`
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Alpha *int `xml:"Alpha,attr"`
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}
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// ImageObject 图片对象
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type ImageObject struct {
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ID string `xml:"ID,attr"`
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Boundary string `xml:"Boundary,attr"`
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ResourceID string `xml:"ResourceID,attr"`
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Substitution string `xml:"Substitution,attr"`
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ImageMask string `xml:"ImageMask,attr"`
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CTM string `xml:"CTM,attr"`
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Alpha *int `xml:"Alpha,attr"`
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Visible *bool `xml:"Visible,attr"`
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Border *ImageBorder `xml:"Border"`
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Clips *Clips `xml:"Clips"`
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Actions []Action `xml:"Actions>Action"`
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}
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// ImageBorder 图像边框
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type ImageBorder struct {
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LineWidth *float64 `xml:"LineWidth,attr"`
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HorizonalCornerRadius float64 `xml:"HorizonalCornerRadius,attr"`
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VerticalCornerRadius float64 `xml:"VerticalCornerRadius,attr"`
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DashOffset float64 `xml:"DashOffset,attr"`
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DashPattern string `xml:"DashPattern,attr"`
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BorderColor *StrokeColor `xml:"BorderColor"`
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}
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// UnmarshalXML 读取页面直接子节点，扩展内容不作为页面区域、资源或图层使用
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// 入参: d XML解码器, start 起始节点
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// 返回: error 解析错误
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func (page *PageContent) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
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if start.Name.Local != "Page" {
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return fmt.Errorf("expected Page root, got %s", start.Name.Local)
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}
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*page = PageContent{XMLName: start.Name}
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return decodeOFDChildren(d, start, func(d *xml.Decoder, node xml.StartElement) error {
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switch node.Name.Local {
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case "Area":
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return d.DecodeElement(&page.Area, &node)
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case "Template":
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var template Template
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if err := d.DecodeElement(&template, &node); err != nil {
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return err
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}
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page.Template = append(page.Template, template)
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case "PageRes":
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var location string
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if err := d.DecodeElement(&location, &node); err != nil {
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return err
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}
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page.PageRes = append(page.PageRes, location)
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case "Content":
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return d.DecodeElement(&page.Content, &node)
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case "Actions":
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return decodeOFDActions(d, node, &page.Actions)
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default:
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return d.Skip()
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}
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return nil
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})
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}
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// UnmarshalXML 读取页面图层，不将外部命名空间中的Layer作为图层
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// 入参: d XML解码器, start 起始节点
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// 返回: error 解析错误
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func (content *Content) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
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*content = Content{}
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return decodeOFDChildren(d, start, func(d *xml.Decoder, node xml.StartElement) error {
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if node.Name.Local != "Layer" {
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return d.Skip()
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}
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var layer Layer
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if err := d.DecodeElement(&layer, &node); err != nil {
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return err
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}
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content.Layer = append(content.Layer, layer)
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return nil
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})
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}
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