line number, symtax highlight, initial dark theme

tabwidget.cpp

@@ -1,11 +1,41 @@
 #include "tabwidget.h"
 #include "sciedit.h"
 #include "documentmanager.h"
+#include "appsettings.h"
 
 #include <QFileDialog>
 #include <QMessageBox>
 #include <QDebug>
 
+#include <ILexer.h>
+#include <Lexilla.h>
+
+static QString lexerNameForDocumentLanguage(const QString &language)
+{
+    if (language == QStringLiteral("C++") ||
+        language == QStringLiteral("C") ||
+        language == QStringLiteral("C/C++ Header")) {
+        return QStringLiteral("cpp");
+    }
+    if (language == QStringLiteral("Python")) {
+        return QStringLiteral("python");
+    }
+    if (language == QStringLiteral("HTML")) {
+        return QStringLiteral("hypertext");
+    }
+    if (language == QStringLiteral("XML")) {
+        return QStringLiteral("xml");
+    }
+    if (language == QStringLiteral("JSON")) {
+        return QStringLiteral("json");
+    }
+    if (language == QStringLiteral("CSS")) {
+        return QStringLiteral("css");
+    }
+
+    return QString();
+}
+
 TabWidget::TabWidget(DocumentManager *documentManager, QWidget *parent)
     : QTabWidget(parent)
     , m_documentManager(documentManager)
@@ -73,6 +103,17 @@ int TabWidget::openDocument(const QString &filePath)
     // 设置编辑器内容
     QString content = m_documentManager->getDocumentContent(docId);
     editor->setText(content.toUtf8().constData());
+    editor->setTabWidth(AppSettings::tabWidth());
+    editor->setEditorFont(AppSettings::editorFont());
+    editor->applyTheme(AppSettings::editorDarkTheme());
+
+    const QString lexerName = lexerNameForDocumentLanguage(m_documentManager->getDocumentLanguage(docId));
+    if (lexerName.isEmpty()) {
+        editor->setLexer(nullptr);
+    } else {
+        Scintilla::ILexer5 *lexer = CreateLexer(lexerName.toStdString().c_str());
+        editor->setLexer(lexer);
+    }
     
     // 重新连接信号
     connectEditorSignals(editor);
@@ -136,7 +177,17 @@ bool TabWidget::saveCurrentDocumentAs()
     QByteArray content = editor->getText(editor->textLength());
     m_documentManager->setDocumentContent(docId, QString::fromUtf8(content));
     
-    return m_documentManager->saveDocumentAs(docId, fileName);
+    const bool saved = m_documentManager->saveDocumentAs(docId, fileName);
+    if (saved) {
+        const QString lexerName = lexerNameForDocumentLanguage(m_documentManager->getDocumentLanguage(docId));
+        if (lexerName.isEmpty()) {
+            editor->setLexer(nullptr);
+        } else {
+            Scintilla::ILexer5 *lexer = CreateLexer(lexerName.toStdString().c_str());
+            editor->setLexer(lexer);
+        }
+    }
+    return saved;
 }
 
 void TabWidget::closeCurrentTab()
@@ -349,6 +400,9 @@ void TabWidget::onEditorTextChanged()
 SciEdit *TabWidget::createEditor()
 {
     SciEdit *editor = new SciEdit(this);
+    editor->setTabWidth(AppSettings::tabWidth());
+    editor->setEditorFont(AppSettings::editorFont());
+    editor->applyTheme(AppSettings::editorDarkTheme());
     return editor;
 }
 
@@ -379,4 +433,4 @@ void TabWidget::disconnectEditorSignals(SciEdit *editor)
     if (editor) {
         disconnect(editor, &SciEdit::textChanged, this, &TabWidget::onEditorTextChanged);
     }
-}
+}