refactor(重构提升): 优化转换渲染与资源压缩

ofdgo_editor_vector.go

@@ -0,0 +1,65 @@
+// 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 (
+	"context"
+	"encoding/xml"
+)
+
+// addOwnedVector 将本库生成的独立对象注册为标准矢量资源，不保留内联复合内容
+// 入参: ctx 取消上下文, objects 无原文和标识的对象, width 资源宽度, height 资源高度
+// 返回: string 资源编号, error 校验、编码或取消错误
+func (e *Editor) addOwnedVector(ctx context.Context, objects []GraphicObject, width, height float64) (string, error) {
+	validation := &editorValidation{Editor: e}
+	for index, object := range objects {
+		if err := ctx.Err(); err != nil {
+			return "", err
+		}
+		prepared, err := validation.prepareObject(e.nextID(), object)
+		if err != nil {
+			return "", err
+		}
+		objects[index] = prepared
+	}
+	id := e.nextID()
+	data, err := encodeOFDXMLContext(ctx, func(x *ofdXML) {
+		x.root("Res", ofdAttrs{{Name: xml.Name{Local: "BaseLoc"}, Value: "."}})
+		x.start("CompositeGraphicUnits", nil)
+		x.start("CompositeGraphicUnit", ofdAttrs{{Name: xml.Name{Local: "ID"}, Value: id},
+			{Name: xml.Name{Local: "Width"}, Value: ofdNumber(width)}, {Name: xml.Name{Local: "Height"}, Value: ofdNumber(height)}})
+		x.start("Content", nil)
+		for _, object := range objects {
+			if err := ctx.Err(); err != nil {
+				x.err = err
+				return
+			}
+			x.object(object, false)
+		}
+		x.end("Content")
+		x.end("CompositeGraphicUnit")
+		x.end("CompositeGraphicUnits")
+		x.end("Res")
+	})
+	if err != nil {
+		return "", err
+	}
+	resource, err := e.compositeResource(id, data)
+	if err != nil {
+		return "", err
+	}
+	e.resources = append(e.resources, resource)
+	return id, ctx.Err()
+}