liyepan
5d1fb0fab7
导出 - 去掉导出预览对话框：Ctrl+E 直接弹保存对话框，选路径即导出 - 导出失败才弹提示，成功只在状态栏显示一行 多语言 - 新增 LanguageManager：中文（zh_CN）/ 英文（en），视图 → 语言 切换， 立即生效并记住选择 - 英文翻译由 translations/voiletmark_en.ts（69 条）编译成 .qm 内嵌 - 打包 Qt 官方的 qtbase_zh_CN.qm，文件对话框 / 消息框的按钮也跟着变中文 - 欢迎文档随语言切换（新增英文版） - retranslateUi 负责菜单、动作、状态栏、侧栏文案的即时刷新 其它 - 删除 ExportDialog 与对应截图，README 同步
1065 lines
37 KiB
C++
1065 lines
37 KiB
C++
#include "MainWindow.h"
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#include "LanguageManager.h"
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#include "MarkdownEditor.h"
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#include "MarkdownRenderer.h"
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#include "ThemeManager.h"
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#include <QAction>
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#include <QActionGroup>
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#include <QApplication>
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#include <QCloseEvent>
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#include <QDir>
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#include <QDirIterator>
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#include <QDockWidget>
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#include <QFile>
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#include <QFileDialog>
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#include <QFileInfo>
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#include <QFrame>
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#include <QHBoxLayout>
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#include <QLabel>
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#include <QListWidget>
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#include <QMenu>
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#include <QMenuBar>
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#include <QMessageBox>
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#include <QPageLayout>
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#include <QPageSize>
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#include <QPixmap>
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#include <QPrinter>
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#include <QSaveFile>
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#include <QSettings>
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#include <QSignalBlocker>
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#include <QStandardPaths>
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#include <QStatusBar>
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#include <QTextBlock>
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#include <QTextCursor>
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#include <QTextDocument>
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#include <QTimer>
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#include <QToolButton>
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#include <QVBoxLayout>
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#include <QWidget>
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#include <algorithm>
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namespace {
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constexpr int kMaxRecentFiles = 8;
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constexpr int kDefaultFontSize = 12;
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const char kWelcomeText[] = R"VOILETMARK(
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# 欢迎使用 VoiletMark
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一款轻量的跨平台 Markdown 编辑器，基于 **Qt 5** 与 C++ 构建。
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## 快速开始
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- `Ctrl+O` 打开文件，`Ctrl+S` 保存，`Ctrl+Shift+S` 另存为
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- 也可以直接把 Markdown 文件拖进窗口
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- `Tab` / `Shift+Tab` 缩进整行，`Ctrl+滚轮` 调整字号
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## 主题
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界面默认跟随系统的浅色 / 深色设置自动切换，
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也可以在 **视图 → 主题** 中手动锁定。
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## 语法预览
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> 引用、列表、`行内代码`、**粗体**、*斜体*、~~删除线~~
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> 以及 [链接](https://example.com) 都会实时着色。
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1. 有序列表项
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2. 另一个有序列表项
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- [x] 自动深浅色主题
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- [x] Markdown 语法高亮
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- [x] 导出 PDF（带预览）
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```cpp
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#include <cstdio>
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int main()
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{
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std::printf("Hello, VoiletMark!\n");
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return 0;
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}
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```
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---
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)VOILETMARK";
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const char kWelcomeTextEn[] = R"VOILETMARK(
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# Welcome to VoiletMark
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A lightweight cross-platform Markdown editor built with **Qt 5** and C++.
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## Quick start
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- `Ctrl+O` opens a file, `Ctrl+S` saves, `Ctrl+Shift+S` saves as
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- Drag a Markdown file into the window to open it
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- `Ctrl+1` – `Ctrl+6` set heading levels, `Ctrl+/` wraps a code block
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- `Ctrl+E` exports the document to PDF (A4)
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## Modes
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The default view is the editor: Markdown markers are hidden, headings are sized,
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and the line under the cursor reveals its raw markers.
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Click `<src>` in the status bar to see the source with line numbers.
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## Theme
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Follows the system light / dark setting by default;
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switch it under **View → Theme**.
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> Quotes, lists, `inline code`, **bold**, *italic*, ~~strikethrough~~
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> and [links](https://example.com) all render in place.
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- [x] Syntax highlighting
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- [x] Folder sidebar
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- [x] PDF export
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```cpp
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#include <cstdio>
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int main()
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{
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std::printf("Hello, VoiletMark!\n");
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return 0;
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}
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```
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---
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)VOILETMARK";
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} // namespace
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MainWindow::MainWindow(QWidget *parent)
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: QMainWindow(parent)
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{
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setMinimumSize(760, 520);
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resize(1024, 720);
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m_editor = new MarkdownEditor(this);
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setCentralWidget(m_editor);
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createActions();
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createSidebar();
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createMenus();
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createStatusBar();
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loadSettings();
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refreshRecentMenu();
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connect(m_editor->document(), &QTextDocument::modificationChanged,
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this, &MainWindow::updateWindowTitle);
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connect(m_editor, &QPlainTextEdit::cursorPositionChanged,
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this, &MainWindow::updateStatusBar);
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connect(m_editor, &MarkdownEditor::zoomStepRequested,
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this, &MainWindow::changeZoom);
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connect(m_editor, &MarkdownEditor::fileDropped,
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this, &MainWindow::openPath);
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connect(LanguageManager::instance(), &LanguageManager::languageChanged,
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this, &MainWindow::retranslateUi);
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showWelcomeDocument();
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updateEditActionStates();
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updateStatusBar();
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m_editor->setFocus();
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}
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void MainWindow::createActions()
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{
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m_newAction = new QAction(tr("新建"), this);
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m_newAction->setShortcut(QKeySequence::New);
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connect(m_newAction, &QAction::triggered, this, &MainWindow::newFile);
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m_openAction = new QAction(tr("打开…"), this);
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m_openAction->setShortcut(QKeySequence::Open);
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connect(m_openAction, &QAction::triggered, this, &MainWindow::openFile);
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m_saveAction = new QAction(tr("保存"), this);
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m_saveAction->setShortcut(QKeySequence::Save);
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connect(m_saveAction, &QAction::triggered, this, [this] { saveFile(); });
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m_saveAsAction = new QAction(tr("另存为…"), this);
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m_saveAsAction->setShortcut(QKeySequence(QStringLiteral("Ctrl+Shift+S")));
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connect(m_saveAsAction, &QAction::triggered, this, [this] { saveFileAs(); });
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m_exportPdfAction = new QAction(tr("导出 PDF…"), this);
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m_exportPdfAction->setShortcut(QKeySequence(QStringLiteral("Ctrl+E")));
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connect(m_exportPdfAction, &QAction::triggered, this, &MainWindow::exportPdf);
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m_quitAction = new QAction(tr("退出"), this);
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m_quitAction->setShortcut(QKeySequence::Quit);
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connect(m_quitAction, &QAction::triggered, this, &QWidget::close);
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m_undoAction = new QAction(tr("撤销"), this);
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m_undoAction->setShortcut(QKeySequence::Undo);
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connect(m_undoAction, &QAction::triggered, m_editor, &QPlainTextEdit::undo);
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m_redoAction = new QAction(tr("重做"), this);
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m_redoAction->setShortcut(QKeySequence::Redo);
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connect(m_redoAction, &QAction::triggered, m_editor, &QPlainTextEdit::redo);
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m_cutAction = new QAction(tr("剪切"), this);
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m_cutAction->setShortcut(QKeySequence::Cut);
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connect(m_cutAction, &QAction::triggered, m_editor, &QPlainTextEdit::cut);
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m_copyAction = new QAction(tr("复制"), this);
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m_copyAction->setShortcut(QKeySequence::Copy);
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connect(m_copyAction, &QAction::triggered, m_editor, &QPlainTextEdit::copy);
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m_pasteAction = new QAction(tr("粘贴"), this);
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m_pasteAction->setShortcut(QKeySequence::Paste);
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connect(m_pasteAction, &QAction::triggered, m_editor, &QPlainTextEdit::paste);
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m_selectAllAction = new QAction(tr("全选"), this);
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m_selectAllAction->setShortcut(QKeySequence::SelectAll);
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connect(m_selectAllAction, &QAction::triggered, m_editor, &QPlainTextEdit::selectAll);
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m_wrapAction = new QAction(tr("自动换行"), this);
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m_wrapAction->setCheckable(true);
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m_wrapAction->setShortcut(QKeySequence(QStringLiteral("Alt+Z")));
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connect(m_wrapAction, &QAction::toggled, this, &MainWindow::setWordWrapEnabled);
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m_zoomInAction = new QAction(tr("放大"), this);
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m_zoomInAction->setShortcut(QKeySequence::ZoomIn);
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connect(m_zoomInAction, &QAction::triggered, this, [this] { changeZoom(1); });
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m_zoomOutAction = new QAction(tr("缩小"), this);
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m_zoomOutAction->setShortcut(QKeySequence::ZoomOut);
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connect(m_zoomOutAction, &QAction::triggered, this, [this] { changeZoom(-1); });
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m_zoomResetAction = new QAction(tr("实际大小"), this);
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m_zoomResetAction->setShortcut(QKeySequence(QStringLiteral("Ctrl+0")));
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connect(m_zoomResetAction, &QAction::triggered, this, &MainWindow::resetZoom);
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connect(m_editor, &QPlainTextEdit::undoAvailable, m_undoAction, &QAction::setEnabled);
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connect(m_editor, &QPlainTextEdit::redoAvailable, m_redoAction, &QAction::setEnabled);
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connect(m_editor, &QPlainTextEdit::copyAvailable, m_cutAction, &QAction::setEnabled);
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connect(m_editor, &QPlainTextEdit::copyAvailable, m_copyAction, &QAction::setEnabled);
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m_openFolderAction = new QAction(tr("打开文件夹…"), this);
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m_openFolderAction->setShortcut(QKeySequence(QStringLiteral("Ctrl+Shift+O")));
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connect(m_openFolderAction, &QAction::triggered, this, &MainWindow::chooseFolder);
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m_sidebarAction = new QAction(tr("侧栏"), this);
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m_sidebarAction->setCheckable(true);
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m_sidebarAction->setChecked(true);
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m_sidebarAction->setShortcut(QKeySequence(QStringLiteral("Ctrl+B")));
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connect(m_sidebarAction, &QAction::toggled, this, [this](bool visible) {
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if (m_sidebar)
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m_sidebar->setVisible(visible);
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if (m_sidebarButton) {
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const QSignalBlocker blocker(m_sidebarButton);
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m_sidebarButton->setChecked(visible);
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}
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QSettings().setValue(QStringLiteral("window/sidebarVisible"), visible);
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});
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m_sourceModeAction = new QAction(tr("源代码模式"), this);
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m_sourceModeAction->setCheckable(true);
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m_sourceModeAction->setShortcut(QKeySequence(QStringLiteral("Ctrl+Shift+M")));
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connect(m_sourceModeAction, &QAction::toggled, this, &MainWindow::setSourceModeEnabled);
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m_codeBlockAction = new QAction(tr("代码块"), this);
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m_codeBlockAction->setShortcut(QKeySequence(QStringLiteral("Ctrl+/")));
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connect(m_codeBlockAction, &QAction::triggered, this, [this] {
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m_editor->toggleCodeBlock();
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});
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for (int level = 1; level <= 6; ++level) {
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QAction *action = new QAction(tr("标题 %1").arg(level), this);
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action->setShortcut(QKeySequence(QStringLiteral("Ctrl+%1").arg(level)));
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connect(action, &QAction::triggered, this, [this, level] {
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m_editor->setHeadingLevel(level);
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});
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m_headingActions[level - 1] = action;
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}
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}
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void MainWindow::createSidebar()
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{
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m_sidebar = new QDockWidget(tr("文件夹"), this);
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m_sidebar->setObjectName(QStringLiteral("folderDock"));
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m_sidebar->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
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m_sidebar->setFeatures(QDockWidget::NoDockWidgetFeatures);
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m_sidebar->setTitleBarWidget(new QWidget(m_sidebar));
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QWidget *content = new QWidget(m_sidebar);
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QVBoxLayout *layout = new QVBoxLayout(content);
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layout->setContentsMargins(8, 8, 8, 8);
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layout->setSpacing(6);
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m_folderLabel = new QLabel(tr("未打开文件夹"), content);
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m_folderLabel->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Preferred);
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layout->addWidget(m_folderLabel);
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m_fileList = new QListWidget(content);
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m_fileList->setFrameShape(QFrame::NoFrame);
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m_fileList->setUniformItemSizes(true);
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m_fileList->setTextElideMode(Qt::ElideMiddle);
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m_fileList->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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layout->addWidget(m_fileList, 1);
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m_sidebar->setWidget(content);
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addDockWidget(Qt::LeftDockWidgetArea, m_sidebar);
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resizeDocks({m_sidebar}, {250}, Qt::Horizontal);
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connect(m_fileList, &QListWidget::itemClicked, this, &MainWindow::openSidebarItem);
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// 列表自己刷新：没有“刷新”按钮，每 5 秒比对一次文件集合，变了才重建。
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m_folderRefreshTimer = new QTimer(this);
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m_folderRefreshTimer->setInterval(5000);
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connect(m_folderRefreshTimer, &QTimer::timeout, this, &MainWindow::refreshFolder);
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m_folderRefreshTimer->start();
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}
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void MainWindow::createMenus()
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{
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m_fileMenu = menuBar()->addMenu(tr("文件"));
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m_fileMenu->addAction(m_newAction);
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m_fileMenu->addAction(m_openAction);
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m_fileMenu->addAction(m_openFolderAction);
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m_recentMenu = m_fileMenu->addMenu(tr("最近打开"));
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m_fileMenu->addSeparator();
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m_fileMenu->addAction(m_saveAction);
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m_fileMenu->addAction(m_saveAsAction);
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m_fileMenu->addAction(m_exportPdfAction);
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m_fileMenu->addSeparator();
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m_fileMenu->addAction(m_quitAction);
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m_editMenu = menuBar()->addMenu(tr("编辑"));
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m_editMenu->addAction(m_undoAction);
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m_editMenu->addAction(m_redoAction);
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m_editMenu->addSeparator();
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m_editMenu->addAction(m_cutAction);
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m_editMenu->addAction(m_copyAction);
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m_editMenu->addAction(m_pasteAction);
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m_editMenu->addSeparator();
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m_editMenu->addAction(m_selectAllAction);
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m_viewMenu = menuBar()->addMenu(tr("视图"));
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m_viewMenu->addAction(m_sidebarAction);
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m_viewMenu->addAction(m_sourceModeAction);
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m_viewMenu->addSeparator();
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m_viewMenu->addAction(m_wrapAction);
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m_viewMenu->addSeparator();
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m_viewMenu->addAction(m_zoomInAction);
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m_viewMenu->addAction(m_zoomOutAction);
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m_viewMenu->addAction(m_zoomResetAction);
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m_viewMenu->addSeparator();
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m_themeMenu = m_viewMenu->addMenu(tr("主题"));
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QActionGroup *themeGroup = new QActionGroup(this);
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themeGroup->setExclusive(true);
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m_themeSystemAction = new QAction(ThemeManager::modeLabel(ThemeManager::Mode::System), this);
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m_themeLightAction = new QAction(ThemeManager::modeLabel(ThemeManager::Mode::Light), this);
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m_themeDarkAction = new QAction(ThemeManager::modeLabel(ThemeManager::Mode::Dark), this);
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m_themeScheduleAction = new QAction(ThemeManager::modeLabel(ThemeManager::Mode::Schedule), this);
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m_themeScheduleAction->setToolTip(tr("6:00–18:00 使用浅色，其余时间使用深色"));
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for (QAction *action : {m_themeSystemAction, m_themeLightAction, m_themeDarkAction,
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m_themeScheduleAction}) {
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action->setCheckable(true);
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themeGroup->addAction(action);
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m_themeMenu->addAction(action);
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}
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m_themeSystemAction->setChecked(true);
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connect(m_themeSystemAction, &QAction::triggered, this,
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[this] { applyThemeMode(static_cast<int>(ThemeManager::Mode::System)); });
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connect(m_themeLightAction, &QAction::triggered, this,
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[this] { applyThemeMode(static_cast<int>(ThemeManager::Mode::Light)); });
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connect(m_themeDarkAction, &QAction::triggered, this,
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[this] { applyThemeMode(static_cast<int>(ThemeManager::Mode::Dark)); });
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connect(m_themeScheduleAction, &QAction::triggered, this,
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[this] { applyThemeMode(static_cast<int>(ThemeManager::Mode::Schedule)); });
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m_languageMenu = m_viewMenu->addMenu(tr("语言"));
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QActionGroup *languageGroup = new QActionGroup(this);
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languageGroup->setExclusive(true);
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m_languageChineseAction =
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new QAction(LanguageManager::displayName(QStringLiteral("zh_CN")), this);
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m_languageEnglishAction =
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new QAction(LanguageManager::displayName(QStringLiteral("en")), this);
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for (QAction *action : {m_languageChineseAction, m_languageEnglishAction}) {
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action->setCheckable(true);
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languageGroup->addAction(action);
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m_languageMenu->addAction(action);
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}
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connect(m_languageChineseAction, &QAction::triggered, this,
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[this] { applyLanguage(QStringLiteral("zh_CN")); });
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connect(m_languageEnglishAction, &QAction::triggered, this,
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[this] { applyLanguage(QStringLiteral("en")); });
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m_formatMenu = menuBar()->addMenu(tr("格式"));
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m_headingMenu = m_formatMenu->addMenu(tr("标题"));
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for (QAction *headingAction : m_headingActions) {
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if (headingAction)
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m_headingMenu->addAction(headingAction);
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}
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m_formatMenu->addAction(m_codeBlockAction);
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m_helpMenu = menuBar()->addMenu(tr("帮助"));
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m_aboutAction = m_helpMenu->addAction(tr("关于 VoiletMark"), this, &MainWindow::showAbout);
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}
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void MainWindow::createStatusBar()
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{
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// 左下角：侧栏开关 + 源代码模式开关。
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m_sidebarButton = new QToolButton(this);
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m_sidebarButton->setText(tr("侧栏"));
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m_sidebarButton->setCheckable(true);
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m_sidebarButton->setChecked(true);
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m_sidebarButton->setCursor(Qt::PointingHandCursor);
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m_sidebarButton->setToolTip(tr("显示 / 隐藏文件夹侧栏（Ctrl+B）"));
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statusBar()->addWidget(m_sidebarButton);
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connect(m_sidebarButton, &QToolButton::toggled, m_sidebarAction, &QAction::setChecked);
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m_sourceButton = new QToolButton(this);
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m_sourceButton->setText(QStringLiteral("<src>"));
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m_sourceButton->setCheckable(true);
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m_sourceButton->setCursor(Qt::PointingHandCursor);
|
||
m_sourceButton->setToolTip(tr("源代码模式：关闭语法高亮与行号（Ctrl+Shift+M）"));
|
||
statusBar()->addWidget(m_sourceButton);
|
||
|
||
m_statusLabel = new QLabel(this);
|
||
m_statusLabel->setContentsMargins(8, 0, 10, 0);
|
||
statusBar()->addPermanentWidget(m_statusLabel);
|
||
statusBar()->setSizeGripEnabled(false);
|
||
|
||
connect(m_sourceButton, &QToolButton::toggled, this, &MainWindow::setSourceModeEnabled);
|
||
}
|
||
|
||
void MainWindow::loadSettings()
|
||
{
|
||
QSettings settings;
|
||
|
||
const QByteArray geometry = settings.value(QStringLiteral("window/geometry")).toByteArray();
|
||
if (!geometry.isEmpty())
|
||
restoreGeometry(geometry);
|
||
|
||
m_lastDirectory = settings.value(QStringLiteral("files/lastDirectory")).toString();
|
||
if (m_lastDirectory.isEmpty())
|
||
m_lastDirectory = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
|
||
|
||
const int fontSize = settings.value(QStringLiteral("editor/fontSize"), kDefaultFontSize).toInt();
|
||
m_editor->setEditorFontPointSize(fontSize);
|
||
|
||
const bool wrap = settings.value(QStringLiteral("editor/wordWrap"), true).toBool();
|
||
m_wrapAction->setChecked(wrap);
|
||
setWordWrapEnabled(wrap);
|
||
|
||
loadRecentFiles();
|
||
|
||
const ThemeManager::Mode mode = ThemeManager::instance()->mode();
|
||
m_themeSystemAction->setChecked(mode == ThemeManager::Mode::System);
|
||
m_themeLightAction->setChecked(mode == ThemeManager::Mode::Light);
|
||
m_themeDarkAction->setChecked(mode == ThemeManager::Mode::Dark);
|
||
m_themeScheduleAction->setChecked(mode == ThemeManager::Mode::Schedule);
|
||
|
||
m_folderPath = settings.value(QStringLiteral("files/folder")).toString();
|
||
if (!m_folderPath.isEmpty() && QFileInfo(m_folderPath).isDir())
|
||
refreshFolder();
|
||
else
|
||
m_folderPath.clear();
|
||
|
||
const bool sidebarVisible =
|
||
settings.value(QStringLiteral("window/sidebarVisible"), true).toBool();
|
||
m_sidebar->setVisible(sidebarVisible);
|
||
m_sidebarAction->setChecked(sidebarVisible);
|
||
|
||
const bool sourceMode = settings.value(QStringLiteral("editor/sourceMode"), false).toBool();
|
||
setSourceModeEnabled(sourceMode);
|
||
}
|
||
|
||
void MainWindow::saveSettings()
|
||
{
|
||
QSettings settings;
|
||
settings.setValue(QStringLiteral("window/geometry"), saveGeometry());
|
||
settings.setValue(QStringLiteral("editor/fontSize"), m_editor->editorFontPointSize());
|
||
settings.setValue(QStringLiteral("editor/wordWrap"), m_wrapAction->isChecked());
|
||
settings.setValue(QStringLiteral("files/lastDirectory"), m_lastDirectory);
|
||
settings.setValue(QStringLiteral("files/recent"), m_recentFiles);
|
||
settings.setValue(QStringLiteral("files/folder"), m_folderPath);
|
||
settings.setValue(QStringLiteral("window/sidebarVisible"), m_sidebar->isVisible());
|
||
}
|
||
|
||
void MainWindow::closeEvent(QCloseEvent *event)
|
||
{
|
||
if (!maybeSave()) {
|
||
event->ignore();
|
||
return;
|
||
}
|
||
saveSettings();
|
||
event->accept();
|
||
}
|
||
|
||
QString MainWindow::displayName() const
|
||
{
|
||
if (m_currentPath.isEmpty())
|
||
return tr("未命名");
|
||
return QFileInfo(m_currentPath).fileName();
|
||
}
|
||
|
||
QString MainWindow::startDirectory() const
|
||
{
|
||
if (!m_currentPath.isEmpty())
|
||
return QFileInfo(m_currentPath).absolutePath();
|
||
if (QFileInfo::exists(m_lastDirectory))
|
||
return m_lastDirectory;
|
||
return QStandardPaths::writableLocation(QStandardPaths::HomeLocation);
|
||
}
|
||
|
||
void MainWindow::showWelcomeDocument()
|
||
{
|
||
const bool english = LanguageManager::instance()->language() == QLatin1String("en");
|
||
QString text = QString::fromUtf8(english ? kWelcomeTextEn : kWelcomeText);
|
||
if (text.startsWith(QLatin1Char('\n')))
|
||
text.remove(0, 1);
|
||
m_welcomeText = text;
|
||
m_editor->setPlainText(text);
|
||
m_editor->applyBlockRhythm();
|
||
m_editor->document()->setModified(false);
|
||
m_editor->document()->clearUndoRedoStacks();
|
||
setCurrentFile(QString());
|
||
m_editor->moveCursor(QTextCursor::Start);
|
||
}
|
||
|
||
void MainWindow::newFile()
|
||
{
|
||
if (!maybeSave())
|
||
return;
|
||
m_editor->clear();
|
||
m_editor->applyBlockRhythm();
|
||
m_editor->document()->setModified(false);
|
||
m_editor->document()->clearUndoRedoStacks();
|
||
m_hasBom = false;
|
||
m_eol = Eol::Lf;
|
||
setCurrentFile(QString());
|
||
updateStatusBar();
|
||
m_editor->setFocus();
|
||
}
|
||
|
||
void MainWindow::openFile()
|
||
{
|
||
if (!maybeSave())
|
||
return;
|
||
|
||
const QString path = QFileDialog::getOpenFileName(
|
||
this, tr("打开 Markdown 文件"), startDirectory(),
|
||
tr("Markdown 文件 (*.md *.markdown *.mdown *.mkd);;文本文件 (*.txt);;所有文件 (*)"));
|
||
if (path.isEmpty())
|
||
return;
|
||
openPath(path);
|
||
}
|
||
|
||
bool MainWindow::openPath(const QString &path)
|
||
{
|
||
if (path.isEmpty())
|
||
return false;
|
||
|
||
const QString absolutePath = QFileInfo(path).absoluteFilePath();
|
||
if (!maybeSave())
|
||
return false;
|
||
|
||
QFile file(absolutePath);
|
||
if (!file.open(QIODevice::ReadOnly)) {
|
||
QMessageBox::warning(this, tr("无法打开文件"),
|
||
tr("读取「%1」失败：%2")
|
||
.arg(QDir::toNativeSeparators(absolutePath), file.errorString()));
|
||
return false;
|
||
}
|
||
const QByteArray raw = file.readAll();
|
||
file.close();
|
||
|
||
m_hasBom = raw.startsWith("\xEF\xBB\xBF");
|
||
QString text = QString::fromUtf8(m_hasBom ? raw.mid(3) : raw);
|
||
m_eol = text.contains(QStringLiteral("\r\n")) ? Eol::Crlf : Eol::Lf;
|
||
if (m_eol == Eol::Crlf)
|
||
text.replace(QStringLiteral("\r\n"), QStringLiteral("\n"));
|
||
|
||
m_editor->setPlainText(text);
|
||
m_editor->applyBlockRhythm();
|
||
m_editor->document()->setModified(false);
|
||
m_editor->document()->clearUndoRedoStacks();
|
||
setCurrentFile(absolutePath);
|
||
addRecentFile(absolutePath);
|
||
updateStatusBar();
|
||
m_editor->setFocus();
|
||
return true;
|
||
}
|
||
|
||
bool MainWindow::saveFile()
|
||
{
|
||
if (m_currentPath.isEmpty())
|
||
return saveFileAs();
|
||
return writeToFile(m_currentPath);
|
||
}
|
||
|
||
bool MainWindow::saveFileAs()
|
||
{
|
||
QString path = QFileDialog::getSaveFileName(
|
||
this, tr("另存为"), startDirectory(),
|
||
tr("Markdown 文件 (*.md);;文本文件 (*.txt);;所有文件 (*)"));
|
||
if (path.isEmpty())
|
||
return false;
|
||
|
||
if (QFileInfo(path).suffix().isEmpty())
|
||
path += QStringLiteral(".md");
|
||
|
||
return writeToFile(path);
|
||
}
|
||
|
||
void MainWindow::exportPdf()
|
||
{
|
||
QString suggested = m_currentPath.isEmpty() ? tr("未命名")
|
||
: QFileInfo(m_currentPath).completeBaseName();
|
||
suggested += QStringLiteral(".pdf");
|
||
|
||
QString target = QFileDialog::getSaveFileName(
|
||
this, tr("导出 PDF"), QDir(startDirectory()).filePath(suggested),
|
||
tr("PDF 文件 (*.pdf)"));
|
||
if (target.isEmpty())
|
||
return;
|
||
if (!target.endsWith(QStringLiteral(".pdf"), Qt::CaseInsensitive))
|
||
target += QStringLiteral(".pdf");
|
||
|
||
QTextDocument document;
|
||
MarkdownRenderer::render(m_editor->toPlainText(), &document);
|
||
document.setPageSize(QSizeF(672.76, 1001.57));
|
||
|
||
QPrinter printer(QPrinter::HighResolution);
|
||
printer.setOutputFormat(QPrinter::PdfFormat);
|
||
printer.setOutputFileName(target);
|
||
printer.setPageSize(QPageSize(QPageSize::A4));
|
||
printer.setPageMargins(QMarginsF(16, 16, 16, 16), QPageLayout::Millimeter);
|
||
printer.setDocName(QFileInfo(target).completeBaseName());
|
||
document.print(&printer);
|
||
|
||
if (!QFileInfo::exists(target) || QFileInfo(target).size() <= 0) {
|
||
QMessageBox::warning(this, tr("导出失败"),
|
||
tr("没能写出「%1」，换个位置再试一次。")
|
||
.arg(QDir::toNativeSeparators(target)));
|
||
return;
|
||
}
|
||
statusBar()->showMessage(tr("已导出 %1").arg(QDir::toNativeSeparators(target)), 4000);
|
||
}
|
||
|
||
bool MainWindow::writeToFile(const QString &path)
|
||
{
|
||
QString text = m_editor->toPlainText();
|
||
if (m_eol == Eol::Crlf)
|
||
text.replace(QLatin1Char('\n'), QStringLiteral("\r\n"));
|
||
|
||
QByteArray data = text.toUtf8();
|
||
if (m_hasBom)
|
||
data.prepend("\xEF\xBB\xBF");
|
||
|
||
QSaveFile file(path);
|
||
if (!file.open(QIODevice::WriteOnly)) {
|
||
QMessageBox::warning(this, tr("无法保存文件"),
|
||
tr("写入「%1」失败：%2")
|
||
.arg(QDir::toNativeSeparators(path), file.errorString()));
|
||
return false;
|
||
}
|
||
if (file.write(data) != data.size()) {
|
||
file.cancelWriting();
|
||
QMessageBox::warning(this, tr("无法保存文件"),
|
||
tr("写入「%1」时发生错误。").arg(QDir::toNativeSeparators(path)));
|
||
return false;
|
||
}
|
||
if (!file.commit()) {
|
||
QMessageBox::warning(this, tr("无法保存文件"),
|
||
tr("提交「%1」失败：%2")
|
||
.arg(QDir::toNativeSeparators(path), file.errorString()));
|
||
return false;
|
||
}
|
||
|
||
m_editor->document()->setModified(false);
|
||
setCurrentFile(path);
|
||
addRecentFile(path);
|
||
statusBar()->showMessage(tr("已保存 %1").arg(QDir::toNativeSeparators(path)), 2500);
|
||
return true;
|
||
}
|
||
|
||
bool MainWindow::maybeSave()
|
||
{
|
||
if (!m_editor->document()->isModified())
|
||
return true;
|
||
|
||
const QMessageBox::StandardButton button = QMessageBox::warning(
|
||
this, tr("VoiletMark"),
|
||
tr("「%1」有未保存的修改，是否保存？").arg(displayName()),
|
||
QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel,
|
||
QMessageBox::Save);
|
||
|
||
if (button == QMessageBox::Save)
|
||
return saveFile();
|
||
return button == QMessageBox::Discard;
|
||
}
|
||
|
||
void MainWindow::setCurrentFile(const QString &path)
|
||
{
|
||
m_currentPath = path;
|
||
if (!path.isEmpty()) {
|
||
m_lastDirectory = QFileInfo(path).absolutePath();
|
||
setWindowFilePath(path);
|
||
} else {
|
||
setWindowFilePath(QString());
|
||
}
|
||
updateWindowTitle();
|
||
selectInSidebar(path);
|
||
}
|
||
|
||
void MainWindow::updateWindowTitle()
|
||
{
|
||
setWindowTitle(tr("%1[*] — VoiletMark").arg(displayName()));
|
||
setWindowModified(m_editor->document()->isModified());
|
||
}
|
||
|
||
void MainWindow::updateEditActionStates()
|
||
{
|
||
m_undoAction->setEnabled(m_editor->document()->isUndoAvailable());
|
||
m_redoAction->setEnabled(m_editor->document()->isRedoAvailable());
|
||
m_cutAction->setEnabled(m_editor->textCursor().hasSelection());
|
||
m_copyAction->setEnabled(m_editor->textCursor().hasSelection());
|
||
}
|
||
|
||
void MainWindow::updateStatusBar()
|
||
{
|
||
const QTextCursor cursor = m_editor->textCursor();
|
||
const int line = cursor.blockNumber() + 1;
|
||
const int column = cursor.positionInBlock() + 1;
|
||
const int characters = m_editor->document()->characterCount() - 1;
|
||
|
||
QString text = tr("行 %1，列 %2").arg(line).arg(column);
|
||
if (cursor.hasSelection())
|
||
text += tr(" 已选 %1 字").arg(cursor.selectedText().size());
|
||
text += tr(" %1 字").arg(qMax(0, characters));
|
||
text += QStringLiteral(" UTF-8");
|
||
m_statusLabel->setText(text);
|
||
}
|
||
|
||
void MainWindow::changeZoom(int direction)
|
||
{
|
||
const int size = (direction == 0) ? kDefaultFontSize
|
||
: m_editor->editorFontPointSize() + direction;
|
||
m_editor->setEditorFontPointSize(size);
|
||
QSettings().setValue(QStringLiteral("editor/fontSize"), m_editor->editorFontPointSize());
|
||
}
|
||
|
||
void MainWindow::resetZoom()
|
||
{
|
||
changeZoom(0);
|
||
}
|
||
|
||
void MainWindow::setWordWrapEnabled(bool enabled)
|
||
{
|
||
m_editor->setLineWrapMode(enabled ? QPlainTextEdit::WidgetWidth : QPlainTextEdit::NoWrap);
|
||
QSettings().setValue(QStringLiteral("editor/wordWrap"), enabled);
|
||
}
|
||
|
||
void MainWindow::applyThemeMode(int mode)
|
||
{
|
||
ThemeManager::instance()->setMode(static_cast<ThemeManager::Mode>(mode), true);
|
||
}
|
||
|
||
void MainWindow::applyLanguage(const QString &code)
|
||
{
|
||
LanguageManager::instance()->setLanguage(code);
|
||
}
|
||
|
||
void MainWindow::retranslateUi()
|
||
{
|
||
m_fileMenu->setTitle(tr("文件"));
|
||
m_editMenu->setTitle(tr("编辑"));
|
||
m_viewMenu->setTitle(tr("视图"));
|
||
m_formatMenu->setTitle(tr("格式"));
|
||
m_helpMenu->setTitle(tr("帮助"));
|
||
m_recentMenu->setTitle(tr("最近打开"));
|
||
m_themeMenu->setTitle(tr("主题"));
|
||
m_headingMenu->setTitle(tr("标题"));
|
||
m_languageMenu->setTitle(tr("语言"));
|
||
|
||
m_newAction->setText(tr("新建"));
|
||
m_openAction->setText(tr("打开…"));
|
||
m_openFolderAction->setText(tr("打开文件夹…"));
|
||
m_saveAction->setText(tr("保存"));
|
||
m_saveAsAction->setText(tr("另存为…"));
|
||
m_exportPdfAction->setText(tr("导出 PDF…"));
|
||
m_quitAction->setText(tr("退出"));
|
||
|
||
m_undoAction->setText(tr("撤销"));
|
||
m_redoAction->setText(tr("重做"));
|
||
m_cutAction->setText(tr("剪切"));
|
||
m_copyAction->setText(tr("复制"));
|
||
m_pasteAction->setText(tr("粘贴"));
|
||
m_selectAllAction->setText(tr("全选"));
|
||
|
||
m_sidebarAction->setText(tr("侧栏"));
|
||
m_sourceModeAction->setText(tr("源代码模式"));
|
||
m_wrapAction->setText(tr("自动换行"));
|
||
m_zoomInAction->setText(tr("放大"));
|
||
m_zoomOutAction->setText(tr("缩小"));
|
||
m_zoomResetAction->setText(tr("实际大小"));
|
||
|
||
m_themeSystemAction->setText(ThemeManager::modeLabel(ThemeManager::Mode::System));
|
||
m_themeLightAction->setText(ThemeManager::modeLabel(ThemeManager::Mode::Light));
|
||
m_themeDarkAction->setText(ThemeManager::modeLabel(ThemeManager::Mode::Dark));
|
||
m_themeScheduleAction->setText(ThemeManager::modeLabel(ThemeManager::Mode::Schedule));
|
||
m_themeScheduleAction->setToolTip(tr("6:00–18:00 使用浅色，其余时间使用深色"));
|
||
|
||
for (int level = 1; level <= 6; ++level) {
|
||
if (m_headingActions[level - 1])
|
||
m_headingActions[level - 1]->setText(tr("标题 %1").arg(level));
|
||
}
|
||
m_codeBlockAction->setText(tr("代码块"));
|
||
m_aboutAction->setText(tr("关于 VoiletMark"));
|
||
|
||
if (m_sidebarButton) {
|
||
m_sidebarButton->setText(tr("侧栏"));
|
||
m_sidebarButton->setToolTip(tr("显示 / 隐藏文件夹侧栏（Ctrl+B）"));
|
||
}
|
||
if (m_sourceButton)
|
||
m_sourceButton->setToolTip(tr("源代码模式：关闭语法高亮与行号（Ctrl+Shift+M）"));
|
||
|
||
const QString language = LanguageManager::instance()->language();
|
||
m_languageChineseAction->setChecked(language == QLatin1String("zh_CN"));
|
||
m_languageEnglishAction->setChecked(language == QLatin1String("en"));
|
||
|
||
// 侧栏、最近打开、欢迎文档都跟着换
|
||
m_displayedFolder.clear();
|
||
refreshRecentMenu();
|
||
refreshFolder();
|
||
|
||
if (m_currentPath.isEmpty() && !m_editor->document()->isModified()
|
||
&& m_editor->toPlainText() == m_welcomeText) {
|
||
showWelcomeDocument();
|
||
}
|
||
|
||
updateWindowTitle();
|
||
updateStatusBar();
|
||
}
|
||
|
||
void MainWindow::showAbout()
|
||
{
|
||
QMessageBox box(this);
|
||
box.setWindowTitle(tr("关于 VoiletMark"));
|
||
box.setIconPixmap(QPixmap(QStringLiteral(":/packaging/voiletmark.png"))
|
||
.scaled(72, 72, Qt::KeepAspectRatio, Qt::SmoothTransformation));
|
||
box.setTextFormat(Qt::RichText);
|
||
box.setText(tr("<h3>VoiletMark %1</h3>"
|
||
"<p>一个轻量的跨平台 Markdown 编辑器。</p>"
|
||
"<p>基于 Qt %2 与 C++17 构建。</p>")
|
||
.arg(QCoreApplication::applicationVersion(),
|
||
QString::fromLatin1(qVersion())));
|
||
box.setStandardButtons(QMessageBox::Ok);
|
||
box.exec();
|
||
}
|
||
|
||
void MainWindow::addRecentFile(const QString &path)
|
||
{
|
||
const QString absolutePath = QFileInfo(path).absoluteFilePath();
|
||
m_recentFiles.removeAll(absolutePath);
|
||
m_recentFiles.prepend(absolutePath);
|
||
while (m_recentFiles.size() > kMaxRecentFiles)
|
||
m_recentFiles.removeLast();
|
||
refreshRecentMenu();
|
||
QSettings().setValue(QStringLiteral("files/recent"), m_recentFiles);
|
||
}
|
||
|
||
void MainWindow::loadRecentFiles()
|
||
{
|
||
m_recentFiles = QSettings().value(QStringLiteral("files/recent")).toStringList();
|
||
m_recentFiles.removeDuplicates();
|
||
while (m_recentFiles.size() > kMaxRecentFiles)
|
||
m_recentFiles.removeLast();
|
||
}
|
||
|
||
void MainWindow::refreshRecentMenu()
|
||
{
|
||
if (!m_recentMenu)
|
||
return;
|
||
|
||
m_recentMenu->clear();
|
||
if (m_recentFiles.isEmpty()) {
|
||
QAction *empty = m_recentMenu->addAction(tr("（暂无记录）"));
|
||
empty->setEnabled(false);
|
||
return;
|
||
}
|
||
|
||
for (const QString &path : m_recentFiles) {
|
||
QAction *action = m_recentMenu->addAction(QDir::toNativeSeparators(path));
|
||
action->setToolTip(path);
|
||
connect(action, &QAction::triggered, this, [this, path] {
|
||
openPath(path);
|
||
});
|
||
}
|
||
m_recentMenu->addSeparator();
|
||
m_recentMenu->addAction(tr("清空列表"), this, [this] {
|
||
m_recentFiles.clear();
|
||
QSettings().setValue(QStringLiteral("files/recent"), m_recentFiles);
|
||
refreshRecentMenu();
|
||
});
|
||
}
|
||
|
||
void MainWindow::chooseFolder()
|
||
{
|
||
const QString directory = QFileDialog::getExistingDirectory(
|
||
this, tr("打开文件夹"), startDirectory(), QFileDialog::ShowDirsOnly);
|
||
if (!directory.isEmpty())
|
||
openFolder(directory);
|
||
}
|
||
|
||
void MainWindow::openFolder(const QString &path)
|
||
{
|
||
const QFileInfo info(path);
|
||
if (!info.isDir())
|
||
return;
|
||
|
||
m_folderPath = info.absoluteFilePath();
|
||
m_lastDirectory = m_folderPath;
|
||
QSettings().setValue(QStringLiteral("files/folder"), m_folderPath);
|
||
refreshFolder();
|
||
|
||
m_sidebar->setVisible(true);
|
||
m_sidebarAction->setChecked(true);
|
||
}
|
||
|
||
QStringList MainWindow::scanFolder() const
|
||
{
|
||
QStringList files;
|
||
if (m_folderPath.isEmpty() || !QFileInfo(m_folderPath).isDir())
|
||
return files;
|
||
|
||
const QDir root(m_folderPath);
|
||
QDirIterator iterator(m_folderPath,
|
||
{QStringLiteral("*.md"), QStringLiteral("*.markdown"),
|
||
QStringLiteral("*.mdown"), QStringLiteral("*.mkd")},
|
||
QDir::Files, QDirIterator::Subdirectories);
|
||
while (iterator.hasNext()) {
|
||
const QString filePath = iterator.next();
|
||
const QString relative = root.relativeFilePath(filePath);
|
||
if (relative.startsWith(QLatin1Char('.')) || relative.contains(QLatin1String("/.")))
|
||
continue;
|
||
files.append(filePath);
|
||
}
|
||
|
||
std::sort(files.begin(), files.end(), [&root](const QString &left, const QString &right) {
|
||
return root.relativeFilePath(left).compare(root.relativeFilePath(right),
|
||
Qt::CaseInsensitive) < 0;
|
||
});
|
||
return files;
|
||
}
|
||
|
||
void MainWindow::refreshFolder()
|
||
{
|
||
if (!m_fileList)
|
||
return;
|
||
|
||
if (m_folderPath.isEmpty() || !QFileInfo(m_folderPath).isDir()) {
|
||
if (m_fileList->count() > 0 || m_displayedFolder != m_folderPath) {
|
||
m_fileList->clear();
|
||
m_displayedFolder = m_folderPath;
|
||
m_folderLabel->setText(tr("未打开文件夹"));
|
||
m_folderLabel->setToolTip(tr("文件 → 打开文件夹…"));
|
||
}
|
||
return;
|
||
}
|
||
|
||
const QDir root(m_folderPath);
|
||
if (m_displayedFolder != m_folderPath) {
|
||
m_displayedFolder = m_folderPath;
|
||
m_fileList->clear();
|
||
m_folderLabel->setText(root.dirName().isEmpty() ? m_folderPath : root.dirName());
|
||
m_folderLabel->setToolTip(QDir::toNativeSeparators(m_folderPath));
|
||
}
|
||
|
||
const QStringList files = scanFolder();
|
||
|
||
// 和当前显示的内容一致就什么都不做，避免每 5 秒闪一下、丢失选中项。
|
||
QStringList shown;
|
||
shown.reserve(m_fileList->count());
|
||
for (int index = 0; index < m_fileList->count(); ++index) {
|
||
const QString path = m_fileList->item(index)->data(Qt::UserRole).toString();
|
||
if (!path.isEmpty())
|
||
shown.append(path);
|
||
}
|
||
if (files == shown)
|
||
return;
|
||
|
||
const QString selectedPath = m_currentPath;
|
||
m_fileList->clear();
|
||
|
||
for (const QString &filePath : files) {
|
||
QListWidgetItem *item = new QListWidgetItem(root.relativeFilePath(filePath), m_fileList);
|
||
item->setData(Qt::UserRole, filePath);
|
||
item->setToolTip(QDir::toNativeSeparators(filePath));
|
||
}
|
||
|
||
if (files.isEmpty()) {
|
||
QListWidgetItem *empty = new QListWidgetItem(tr("（没有 Markdown 文件）"), m_fileList);
|
||
empty->setFlags(Qt::NoItemFlags);
|
||
}
|
||
|
||
selectInSidebar(selectedPath);
|
||
}
|
||
|
||
void MainWindow::openSidebarItem(QListWidgetItem *item)
|
||
{
|
||
if (!item)
|
||
return;
|
||
|
||
const QString path = item->data(Qt::UserRole).toString();
|
||
if (path.isEmpty())
|
||
return;
|
||
|
||
if (!m_currentPath.isEmpty()
|
||
&& QFileInfo(path).absoluteFilePath() == QFileInfo(m_currentPath).absoluteFilePath()
|
||
&& !m_editor->document()->isModified()) {
|
||
return;
|
||
}
|
||
openPath(path);
|
||
}
|
||
|
||
void MainWindow::selectInSidebar(const QString &path)
|
||
{
|
||
if (!m_fileList || m_fileList->count() == 0)
|
||
return;
|
||
|
||
const QString absolute = path.isEmpty() ? QString() : QFileInfo(path).absoluteFilePath();
|
||
if (!absolute.isEmpty()) {
|
||
for (int index = 0; index < m_fileList->count(); ++index) {
|
||
QListWidgetItem *item = m_fileList->item(index);
|
||
const QString itemPath = item->data(Qt::UserRole).toString();
|
||
if (itemPath.isEmpty())
|
||
continue;
|
||
if (QFileInfo(itemPath).absoluteFilePath() == absolute) {
|
||
m_fileList->setCurrentItem(item);
|
||
m_fileList->scrollToItem(item);
|
||
return;
|
||
}
|
||
}
|
||
}
|
||
|
||
m_fileList->clearSelection();
|
||
m_fileList->setCurrentItem(nullptr);
|
||
}
|
||
|
||
void MainWindow::setSourceModeEnabled(bool enabled)
|
||
{
|
||
m_editor->setSourceMode(enabled);
|
||
|
||
if (m_sourceButton) {
|
||
const QSignalBlocker blocker(m_sourceButton);
|
||
m_sourceButton->setChecked(enabled);
|
||
m_sourceButton->setText(enabled ? QStringLiteral("</src>") : QStringLiteral("<src>"));
|
||
}
|
||
if (m_sourceModeAction) {
|
||
const QSignalBlocker blocker(m_sourceModeAction);
|
||
m_sourceModeAction->setChecked(enabled);
|
||
}
|
||
|
||
QSettings().setValue(QStringLiteral("editor/sourceMode"), enabled);
|
||
}
|