feat: complete large-book pagination runtime and UI coverage

2026-06-03 17:47:16 +08:00
parent 584976ac5f
commit feb05eaf87
53 changed files with 6307 additions and 5126 deletions
@@ -0,0 +1,52 @@
+import Foundation
+
+final class RDEPUBRuntimeChapter {
+    let spineIndex: Int
+    let href: String
+    let title: String
+
+    /// 原始富文本（可按策略释放，不强制常驻）
+    var sourceAttributedString: NSAttributedString?
+
+    /// 排版后富文本
+    let typesetAttributedString: NSAttributedString
+
+    /// 排版器
+    let layouter: RDEPUBTextLayouter
+
+    /// 页范围
+    let pageRanges: [NSRange]
+
+    /// 页面数组
+    let pages: [RDEPUBTextPage]
+
+    /// 章节偏移映射
+    let chapterOffsetMap: RDEPUBChapterOffsetMap
+
+    init(
+        spineIndex: Int,
+        href: String,
+        title: String,
+        sourceAttributedString: NSAttributedString?,
+        typesetAttributedString: NSAttributedString,
+        layouter: RDEPUBTextLayouter,
+        pageRanges: [NSRange],
+        pages: [RDEPUBTextPage],
+        chapterOffsetMap: RDEPUBChapterOffsetMap
+    ) {
+        self.spineIndex = spineIndex
+        self.href = href
+        self.title = title
+        self.sourceAttributedString = sourceAttributedString
+        self.typesetAttributedString = typesetAttributedString
+        self.layouter = layouter
+        self.pageRanges = pageRanges
+        self.pages = pages
+        self.chapterOffsetMap = chapterOffsetMap
+    }
+
+    /// 释放 sourceAttributedString 以降低内存
+    func releaseSourceText() {
+        sourceAttributedString = nil
+    }
+}