feat: multitab and basic file saving
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358
tabwidget.cpp
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358
tabwidget.cpp
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#include "tabwidget.h"
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#include "sciedit.h"
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#include "documentmanager.h"
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#include <QFileDialog>
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#include <QMessageBox>
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#include <QDebug>
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TabWidget::TabWidget(DocumentManager *documentManager, QWidget *parent)
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: QTabWidget(parent)
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, m_documentManager(documentManager)
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{
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setTabsClosable(true);
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setMovable(true);
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setUsesScrollButtons(true);
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// 连接信号
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connect(this, &QTabWidget::currentChanged, this, &TabWidget::onCurrentChanged);
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connect(this, &QTabWidget::tabCloseRequested, this, &TabWidget::onTabCloseRequested);
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// 连接文档管理器信号
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connect(m_documentManager, &DocumentManager::documentModified,
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this, &TabWidget::onDocumentModified);
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connect(m_documentManager, &DocumentManager::documentTitleChanged,
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this, &TabWidget::onDocumentTitleChanged);
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// 创建第一个文档
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newDocument();
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}
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TabWidget::~TabWidget()
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{
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}
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int TabWidget::newDocument()
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{
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int docId = m_documentManager->createNewDocument();
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if (docId == -1) {
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return -1;
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}
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SciEdit *editor = createEditor();
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m_editors[docId] = editor;
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QString title = m_documentManager->getDocumentTitle(docId);
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int tabIndex = addTab(editor, title);
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m_tabToDocumentId[tabIndex] = docId;
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m_documentIdToTab[docId] = tabIndex;
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setCurrentIndex(tabIndex);
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return docId;
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}
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int TabWidget::openDocument(const QString &filePath)
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{
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int docId = m_documentManager->openDocument(filePath);
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if (docId == -1) {
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QMessageBox::warning(this, "Error", "Failed to open file: " + filePath);
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return -1;
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}
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SciEdit *editor = createEditor();
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m_editors[docId] = editor;
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// 设置编辑器内容
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QString content = m_documentManager->getDocumentContent(docId);
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editor->setText(content.toUtf8().constData());
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QString title = m_documentManager->getDocumentTitle(docId);
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int tabIndex = addTab(editor, title);
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m_tabToDocumentId[tabIndex] = docId;
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m_documentIdToTab[docId] = tabIndex;
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setCurrentIndex(tabIndex);
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return docId;
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}
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bool TabWidget::saveCurrentDocument()
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{
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SciEdit *editor = currentEditor();
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if (!editor) {
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return false;
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}
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int docId = currentDocumentId();
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if (docId == -1) {
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return false;
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}
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// 更新文档内容
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QByteArray content = editor->getText(editor->textLength());
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m_documentManager->setDocumentContent(docId, QString::fromUtf8(content));
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if (m_documentManager->isDocumentUntitled(docId)) {
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return saveCurrentDocumentAs();
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}
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return m_documentManager->saveDocument(docId);
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}
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bool TabWidget::saveCurrentDocumentAs()
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{
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SciEdit *editor = currentEditor();
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if (!editor) {
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return false;
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}
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int docId = currentDocumentId();
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if (docId == -1) {
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return false;
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}
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QString fileName = QFileDialog::getSaveFileName(this,
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"Save File",
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m_documentManager->getDocumentTitle(docId),
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"All Files (*.*)");
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if (fileName.isEmpty()) {
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return false;
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}
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// 更新文档内容
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QByteArray content = editor->getText(editor->textLength());
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m_documentManager->setDocumentContent(docId, QString::fromUtf8(content));
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return m_documentManager->saveDocumentAs(docId, fileName);
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}
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void TabWidget::closeCurrentTab()
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{
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int index = currentIndex();
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if (index >= 0) {
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closeTab(index);
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}
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}
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bool TabWidget::closeTab(int index)
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{
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if (index < 0 || index >= count()) {
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return false;
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}
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int docId = m_tabToDocumentId.value(index, -1);
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if (docId == -1) {
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return false;
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}
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// 检查是否需要保存
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if (m_documentManager->isDocumentModified(docId)) {
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QString title = m_documentManager->getDocumentTitle(docId);
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int ret = QMessageBox::question(this, "Save Changes",
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QString("The document '%1' has been modified.\nDo you want to save your changes?").arg(title),
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QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel);
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if (ret == QMessageBox::Save) {
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// 更新文档内容
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SciEdit *editor = editorAt(index);
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if (editor) {
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QByteArray content = editor->getText(editor->textLength());
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m_documentManager->setDocumentContent(docId, QString::fromUtf8(content));
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}
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bool saved = false;
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if (m_documentManager->isDocumentUntitled(docId)) {
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QString fileName = QFileDialog::getSaveFileName(this,
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"Save File",
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title,
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"All Files (*.*)");
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if (!fileName.isEmpty()) {
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saved = m_documentManager->saveDocumentAs(docId, fileName);
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}
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} else {
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saved = m_documentManager->saveDocument(docId);
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}
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if (!saved) {
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return false; // 保存失败，不关闭标签页
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}
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} else if (ret == QMessageBox::Cancel) {
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return false; // 取消关闭
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}
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}
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// 移除标签页
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QWidget *widget = this->widget(index);
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removeTab(index);
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// 清理映射关系
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m_tabToDocumentId.remove(index);
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m_documentIdToTab.remove(docId);
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// 更新其他标签页的索引映射
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QHash<int, int> newTabToDocumentId;
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QHash<int, int> newDocumentIdToTab;
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for (int i = 0; i < count(); ++i) {
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int oldIndex = (i >= index) ? i + 1 : i;
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int oldDocId = m_tabToDocumentId.value(oldIndex, -1);
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if (oldDocId != -1) {
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newTabToDocumentId[i] = oldDocId;
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newDocumentIdToTab[oldDocId] = i;
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}
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}
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m_tabToDocumentId = newTabToDocumentId;
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m_documentIdToTab = newDocumentIdToTab;
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// 清理编辑器和文档
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if (m_editors.contains(docId)) {
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SciEdit *editor = m_editors[docId];
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disconnectEditorSignals(editor);
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m_editors.remove(docId);
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}
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m_documentManager->closeDocument(docId);
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if (widget) {
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widget->deleteLater();
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}
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// 如果没有标签页了，创建一个新的
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if (count() == 0) {
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newDocument();
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}
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return true;
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}
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void TabWidget::closeAllTabs()
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{
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while (count() > 0) {
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closeTab(0);
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}
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}
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SciEdit *TabWidget::currentEditor() const
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{
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int docId = currentDocumentId();
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return m_editors.value(docId, nullptr);
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}
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SciEdit *TabWidget::editorAt(int index) const
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{
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int docId = m_tabToDocumentId.value(index, -1);
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return m_editors.value(docId, nullptr);
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}
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int TabWidget::currentDocumentId() const
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{
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int index = currentIndex();
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return m_tabToDocumentId.value(index, -1);
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}
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int TabWidget::documentIdAt(int index) const
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{
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return m_tabToDocumentId.value(index, -1);
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}
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void TabWidget::setCurrentTab(int index)
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{
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if (index >= 0 && index < count()) {
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setCurrentIndex(index);
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}
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}
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int TabWidget::findTabByDocumentId(int docId) const
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{
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return m_documentIdToTab.value(docId, -1);
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}
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void TabWidget::onCurrentChanged(int index)
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{
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SciEdit *editor = editorAt(index);
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emit currentEditorChanged(editor);
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}
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void TabWidget::onTabCloseRequested(int index)
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{
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closeTab(index);
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}
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void TabWidget::onDocumentModified(int docId, bool modified)
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{
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int tabIndex = findTabByDocumentId(docId);
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if (tabIndex >= 0) {
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updateTabTitle(tabIndex);
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}
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}
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void TabWidget::onDocumentTitleChanged(int docId, const QString &title)
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{
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int tabIndex = findTabByDocumentId(docId);
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if (tabIndex >= 0) {
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updateTabTitle(tabIndex);
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}
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}
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void TabWidget::onEditorTextChanged()
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{
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SciEdit *editor = qobject_cast<SciEdit*>(sender());
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if (!editor) {
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return;
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}
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// 找到对应的文档ID
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int docId = -1;
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for (auto it = m_editors.begin(); it != m_editors.end(); ++it) {
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if (it.value() == editor) {
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docId = it.key();
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break;
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}
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}
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if (docId != -1) {
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QByteArray content = editor->getText(editor->textLength());
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m_documentManager->setDocumentContent(docId, QString::fromUtf8(content));
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}
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}
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SciEdit *TabWidget::createEditor()
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{
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SciEdit *editor = new SciEdit(this);
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connectEditorSignals(editor);
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return editor;
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}
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void TabWidget::updateTabTitle(int tabIndex)
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{
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int docId = m_tabToDocumentId.value(tabIndex, -1);
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if (docId == -1) {
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return;
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}
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QString title = m_documentManager->getDocumentTitle(docId);
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if (m_documentManager->isDocumentModified(docId)) {
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title += " *";
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}
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setTabText(tabIndex, title);
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}
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void TabWidget::connectEditorSignals(SciEdit *editor)
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{
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if (editor) {
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connect(editor, &SciEdit::textChanged, this, &TabWidget::onEditorTextChanged);
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}
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}
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void TabWidget::disconnectEditorSignals(SciEdit *editor)
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{
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if (editor) {
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disconnect(editor, &SciEdit::textChanged, this, &TabWidget::onEditorTextChanged);
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}
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}
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