feat: 增加侧边面板的滚轮事件处理功能

Author: txp666

src/app/view/workbench/workbench_page_internal.h

@@ -13,6 +13,7 @@
 #include <FluentQtWidgets/StyleSheet.h>
 #include <FluentQtWidgets/Theme.h>
 
+#include <QtCore/QCoreApplication>
 #include <QtCore/QDir>
 #include <QtCore/QEvent>
 #include <QtCore/QFile>
@@ -31,6 +32,7 @@
 #include <QtGui/QTextCharFormat>
 #include <QtGui/QTextCursor>
 #include <QtGui/QTextOption>
+#include <QtGui/QWheelEvent>
 #include <QtSerialPort/QSerialPortInfo>
 #include <QtWidgets/QAbstractItemView>
 #include <QtWidgets/QFileDialog>
@@ -39,6 +41,7 @@
 #include <QtWidgets/QLabel>
 #include <QtWidgets/QListWidgetItem>
 #include <QtWidgets/QPlainTextEdit>
+#include <QtWidgets/QScrollBar>
 #include <QtWidgets/QSizePolicy>
 #include <QtWidgets/QTextEdit>
 #include <QtWidgets/QVBoxLayout>

src/app/view/workbench/workbench_page_layout.cpp

@@ -10,15 +10,15 @@ QWidget *WorkbenchPage::createWorkbench()
     root->setContentsMargins(0, 0, 0, 0);
     root->setSpacing(10);
 
-    auto *sideScroll = new ScrollArea(workbench);
-    sideScroll->setFixedWidth(SidePanelWidth);
-    sideScroll->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
-    if (sideScroll->horizontalFluentScrollBar()) {
-        sideScroll->horizontalFluentScrollBar()->setForceHidden(true);
+    m_sideScroll = new ScrollArea(workbench);
+    m_sideScroll->setFixedWidth(SidePanelWidth);
+    m_sideScroll->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    if (m_sideScroll->horizontalFluentScrollBar()) {
+        m_sideScroll->horizontalFluentScrollBar()->setForceHidden(true);
     }
 
-    auto *sidePanel = new QWidget(sideScroll);
-    auto *sideLayout = new QVBoxLayout(sidePanel);
+    m_sidePanel = new QWidget(m_sideScroll);
+    auto *sideLayout = new QVBoxLayout(m_sidePanel);
     sideLayout->setContentsMargins(0, 0, 0, 0);
     sideLayout->setSpacing(10);
     sideLayout->addWidget(createConnectionSection());
@@ -29,8 +29,9 @@ QWidget *WorkbenchPage::createWorkbench()
     sideLayout->addWidget(createMacroSection());
     sideLayout->addWidget(createFileSendSection());
     sideLayout->addStretch(1);
-    sideScroll->setWidget(sidePanel);
-    sideScroll->setWidgetResizable(true);
+    m_sideScroll->setWidget(m_sidePanel);
+    m_sideScroll->setWidgetResizable(true);
+    installSidePanelWheelFilters(m_sidePanel);
 
     auto *terminalPanel = new QWidget(workbench);
     auto *terminalLayout = new QVBoxLayout(terminalPanel);
@@ -39,11 +40,24 @@ QWidget *WorkbenchPage::createWorkbench()
     terminalLayout->addWidget(createTerminalSection(), 1);
     terminalLayout->addWidget(createSendSection());
 
-    root->addWidget(sideScroll);
+    root->addWidget(m_sideScroll);
     root->addWidget(terminalPanel, 1);
     return workbench;
 }
 
+void WorkbenchPage::installSidePanelWheelFilters(QWidget *root)
+{
+    if (!root) {
+        return;
+    }
+
+    root->installEventFilter(this);
+    const auto widgets = root->findChildren<QWidget *>();
+    for (QWidget *widget : widgets) {
+        widget->installEventFilter(this);
+    }
+}
+
 QWidget *WorkbenchPage::createCheckRow(const QStringList &labels, const QList<CheckBox **> &targets, QWidget *parent)
 {
     auto *rowWidget = new QWidget(parent);

src/app/view/workbench_page.cpp

@@ -53,6 +53,12 @@ WorkbenchPage::~WorkbenchPage()
 
 bool WorkbenchPage::eventFilter(QObject *watched, QEvent *event)
 {
+    if (event->type() == QEvent::Wheel) {
+        if (forwardSidePanelWheelEvent(watched, static_cast<QWheelEvent *>(event))) {
+            return true;
+        }
+    }
+
     if (watched == m_sendEdit && event->type() == QEvent::KeyPress) {
         auto *keyEvent = static_cast<QKeyEvent *>(event);
         const bool enterKey = keyEvent->key() == Qt::Key_Return || keyEvent->key() == Qt::Key_Enter;
@@ -63,3 +69,31 @@ bool WorkbenchPage::eventFilter(QObject *watched, QEvent *event)
     }
     return AppPage::eventFilter(watched, event);
 }
+
+bool WorkbenchPage::forwardSidePanelWheelEvent(QObject *watched, QWheelEvent *event)
+{
+    if (!m_sideScroll || !m_sidePanel || !event) {
+        return false;
+    }
+
+    auto *widget = qobject_cast<QWidget *>(watched);
+    if (!widget || (widget != m_sidePanel && !m_sidePanel->isAncestorOf(widget))) {
+        return false;
+    }
+    if (widget == m_sideScroll->viewport()) {
+        return false;
+    }
+
+    auto *viewport = m_sideScroll->viewport();
+    if (!viewport) {
+        return false;
+    }
+
+    const QPointF viewportPosition = viewport->mapFromGlobal(event->globalPosition().toPoint());
+    QWheelEvent forwarded(viewportPosition, event->globalPosition(), event->pixelDelta(), event->angleDelta(),
+                          event->buttons(), event->modifiers(), event->phase(), event->inverted(), event->source(),
+                          event->pointingDevice());
+    QCoreApplication::sendEvent(viewport, &forwarded);
+    event->setAccepted(forwarded.isAccepted());
+    return forwarded.isAccepted();
+}

src/app/view/workbench_page.h

@@ -15,6 +15,7 @@
 class QEvent;
 class QTextCharFormat;
 class QTextCursor;
+class QWheelEvent;
 
 class WorkbenchPage : public AppPage
 {
@@ -46,6 +47,8 @@ class WorkbenchPage : public AppPage
     QWidget *createTerminalSection();
     QWidget *createSendSection();
     QWidget *createCheckRow(const QStringList &labels, const QList<FluentQt::CheckBox **> &targets, QWidget *parent);
+    void installSidePanelWheelFilters(QWidget *root);
+    bool forwardSidePanelWheelEvent(QObject *watched, QWheelEvent *event);
 
     enum class RecordDirection
     {
@@ -293,6 +296,8 @@ class WorkbenchPage : public AppPage
     bool m_macroRunning = false;
     bool m_macroWaitingForResponse = false;
 
+    FluentQt::ScrollArea *m_sideScroll = nullptr;
+    QWidget *m_sidePanel = nullptr;
     FluentQt::ComboBox *m_portCombo = nullptr;
     FluentQt::EditableComboBox *m_baudCombo = nullptr;
     FluentQt::ComboBox *m_dataBitsCombo = nullptr;