mirror of
https://github.com/xiaoqidun/ofdgo.git
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94 lines
3.5 KiB
Go
94 lines
3.5 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 "fmt"
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// Style 获取内部成员的独立样式快照，文字和路径CTM只表达页面描边倍率
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// 可传入CopyStyle或CopyCompositeStyle，不作为几何复制快照
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// 返回: GraphicObject 有效样式来源
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func (m CompositeMember) Style() GraphicObject {
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object := cloneEditorData(m.Object)
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if object.Type == "PathObject" {
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object.PathObject.CTM = Matrix{a: m.StrokeScale, d: m.StrokeScale}.String()
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} else if object.Type == "TextObject" {
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object.TextObject.CTM = Matrix{a: m.StrokeScale, d: m.StrokeScale}.String()
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}
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return object
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}
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// CopyCompositeStyle 将同类型样式复制到内部选区，保留内容、位置、裁剪及其他实例
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// 描边复制页面实际线宽和虚线，文字沿用目标段落和基线，全部成功后提交一次撤销
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// 入参: page 页面索引, path 父路径, indexes 成员序号, source Object或CompositeMember.Style取得的样式快照
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// 返回: error 错误信息
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func (e *Editor) CopyCompositeStyle(page int, path ObjectPath, indexes []int, source GraphicObject) error {
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if err := e.validateCopyStyle(source); err != nil {
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return err
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}
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return e.editCompositeObjects(page, path, indexes, func(_ *Renderer, nodes []*editorCompositeNode, members []CompositeMember) error {
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if len(nodes) == 0 {
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return nil
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}
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var err error
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source, err = e.explicitDefaultPaint(source)
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if err != nil {
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return err
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}
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for i, node := range nodes {
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member := members[i]
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if node.object.Type != source.Type || !member.Capabilities.Transform || source.Type != "ImageObject" && !member.Capabilities.Paint {
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return fmt.Errorf("style requires editable members of the same type")
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}
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object := cloneEditorData(member.Object)
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switch source.Type {
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case "TextObject":
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if err := e.updateCompositeText(node, member, nil, TextStyle{Font: source.TextObject.Font, Size: source.TextObject.Size}, nil, nil); err != nil {
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return err
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}
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var err error
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object, err = e.compositeMemberStyle(node)
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if err != nil {
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return err
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}
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style := copyEditorPathStyle(object.TextObject.pathStyle(), source.TextObject.pathStyle(), editorStrokeScale(source.TextObject.CTM)/member.StrokeScale)
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if err := validateEditorStroke(style); err != nil {
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return err
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}
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object.TextObject = object.TextObject.withPathStyle(style)
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object.TextObject.DrawParam, err = e.neutralDrawParam()
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if err != nil {
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return err
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}
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case "PathObject":
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object.PathObject = copyEditorPathStyle(object.PathObject, source.PathObject, editorStrokeScale(source.PathObject.CTM)/member.StrokeScale)
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if err := validateEditorStroke(object.PathObject); err != nil {
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return err
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}
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var err error
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object.PathObject.DrawParam, err = e.neutralDrawParam()
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if err != nil {
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return err
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}
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case "ImageObject":
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object.ImageObject.Alpha = cloneEditorData(source.ImageObject.Alpha)
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}
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if err := node.update(object); err != nil {
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return err
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}
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}
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return nil
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})
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}
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