From ed2f047452bbdf78effdbd2cd1182fe436e77327 Mon Sep 17 00:00:00 2001
From: Gary Wang <git@blumia.net>
Date: Sun, 1 Feb 2026 17:18:31 +0800
Subject: [PATCH] i18n: update ts files

---
 documentmanager.cpp |  8 +-----
 tabwidget.cpp       | 59 ++++++++++++++++++++++++++++++++++++---------
 tabwidget.h         |  4 ++-
 3 files changed, 51 insertions(+), 20 deletions(-)

diff --git a/documentmanager.cpp b/documentmanager.cpp
index 6d6aaf6..b4b4817 100644
--- a/documentmanager.cpp
+++ b/documentmanager.cpp
@@ -194,13 +194,7 @@ void DocumentManager::setDocumentContent(int docId, const QString &content)
 {
     if (m_documents.contains(docId)) {
         DocumentInfo &doc = m_documents[docId];
-        if (doc.content != content) {
-            doc.content = content;
-            if (!doc.modified) {
-                doc.modified = true;
-                emit documentModified(docId, true);
-            }
-        }
+        doc.content = content;
     }
 }
 
diff --git a/tabwidget.cpp b/tabwidget.cpp
index fc4c594..723e9b5 100644
--- a/tabwidget.cpp
+++ b/tabwidget.cpp
@@ -27,9 +27,6 @@ TabWidget::TabWidget(DocumentManager *documentManager, QWidget *parent)
             this, &TabWidget::onDocumentModified);
     connect(m_documentManager, &DocumentManager::documentTitleChanged,
             this, &TabWidget::onDocumentTitleChanged);
-    
-    // 创建第一个文档
-    newDocument();
 }
 
 TabWidget::~TabWidget()
@@ -44,6 +41,8 @@ int TabWidget::newDocument()
     }
     
     SciEdit *editor = createEditor();
+    editor->emptyUndoBuffer();
+    editor->setSavePoint();
     m_editors[docId] = editor;
     
     // 连接信号
@@ -76,7 +75,12 @@ int TabWidget::openDocument(const QString &filePath)
     
     // 设置编辑器内容
     QString content = m_documentManager->getDocumentContent(docId);
-    editor->setText(content.toUtf8().constData());
+    const QByteArray contentBytes = content.toUtf8();
+    editor->setUndoCollection(false);
+    editor->setText(contentBytes.constData());
+    editor->setUndoCollection(true);
+    editor->emptyUndoBuffer();
+    editor->setSavePoint();
     editor->setTabWidth(AppSettings::tabWidth());
     editor->setEditorFont(AppSettings::editorFont());
     editor->applyTheme(AppSettings::editorDarkTheme());
@@ -123,7 +127,11 @@ bool TabWidget::saveCurrentDocument()
         return saveCurrentDocumentAs();
     }
     
-    return m_documentManager->saveDocument(docId);
+    const bool saved = m_documentManager->saveDocument(docId);
+    if (saved) {
+        editor->setSavePoint();
+    }
+    return saved;
 }
 
 bool TabWidget::saveCurrentDocumentAs()
@@ -160,6 +168,7 @@ bool TabWidget::saveCurrentDocumentAs()
             Scintilla::ILexer5 *lexer = CreateLexer(lexerName.toStdString().c_str());
             editor->setLexer(lexer);
         }
+        editor->setSavePoint();
     }
     return saved;
 }
@@ -220,6 +229,10 @@ bool TabWidget::closeTab(int index)
             if (!saved) {
                 return false; // 保存失败，不关闭标签页
             }
+
+            if (editor) {
+                editor->setSavePoint();
+            }
         } else if (ret == QMessageBox::Cancel) {
             return false; // 取消关闭
         }
@@ -321,6 +334,21 @@ int TabWidget::findTabByDocumentId(int docId) const
     return m_documentIdToTab.value(docId, -1);
 }
 
+int TabWidget::documentIdForEditor(SciEdit *editor) const
+{
+    if (!editor) {
+        return -1;
+    }
+
+    for (auto it = m_editors.begin(); it != m_editors.end(); ++it) {
+        if (it.value() == editor) {
+            return it.key();
+        }
+    }
+
+    return -1;
+}
+
 void TabWidget::onCurrentChanged(int index)
 {
     SciEdit *editor = editorAt(index);
@@ -357,13 +385,7 @@ void TabWidget::onEditorTextChanged()
     }
     
     // 找到对应的文档ID
-    int docId = -1;
-    for (auto it = m_editors.begin(); it != m_editors.end(); ++it) {
-        if (it.value() == editor) {
-            docId = it.key();
-            break;
-        }
-    }
+    const int docId = documentIdForEditor(editor);
     
     if (docId != -1) {
         QByteArray content = editor->getText(editor->textLength());
@@ -371,6 +393,17 @@ void TabWidget::onEditorTextChanged()
     }
 }
 
+void TabWidget::onEditorSavePointChanged(bool dirty)
+{
+    SciEdit *editor = qobject_cast<SciEdit*>(sender());
+    const int docId = documentIdForEditor(editor);
+    if (docId < 0) {
+        return;
+    }
+
+    m_documentManager->setDocumentModified(docId, dirty);
+}
+
 SciEdit *TabWidget::createEditor()
 {
     SciEdit *editor = new SciEdit(this);
@@ -399,6 +432,7 @@ void TabWidget::connectEditorSignals(SciEdit *editor)
 {
     if (editor) {
         connect(editor, &SciEdit::textChanged, this, &TabWidget::onEditorTextChanged);
+        connect(editor, &ScintillaEditBase::savePointChanged, this, &TabWidget::onEditorSavePointChanged);
     }
 }
 
@@ -406,5 +440,6 @@ void TabWidget::disconnectEditorSignals(SciEdit *editor)
 {
     if (editor) {
         disconnect(editor, &SciEdit::textChanged, this, &TabWidget::onEditorTextChanged);
+        disconnect(editor, &ScintillaEditBase::savePointChanged, this, &TabWidget::onEditorSavePointChanged);
     }
 }
diff --git a/tabwidget.h b/tabwidget.h
index 96fad21..864733b 100644
--- a/tabwidget.h
+++ b/tabwidget.h
@@ -42,6 +42,7 @@ private slots:
     void onDocumentModified(int docId, bool modified);
     void onDocumentTitleChanged(int docId, const QString &title);
     void onEditorTextChanged();
+    void onEditorSavePointChanged(bool dirty);
 
 private:
     DocumentManager *m_documentManager;
@@ -49,8 +50,9 @@ private:
     QHash<int, int> m_documentIdToTab;  // document id -> tab index
     QHash<int, SciEdit*> m_editors;     // document id -> editor
 
+    int documentIdForEditor(SciEdit *editor) const;
     SciEdit *createEditor();
     void updateTabTitle(int tabIndex);
     void connectEditorSignals(SciEdit *editor);
     void disconnectEditorSignals(SciEdit *editor);
-};
\ No newline at end of file
+};