添加模型分割

client/gui/widgets/LongPressSwitchToolButton.cpp

@@ -0,0 +1,52 @@
+#include "widgets/LongPressSwitchToolButton.h"
+
+#include <QApplication>
+#include <QMouseEvent>
+#include <QTimer>
+
+#include <algorithm>
+
+LongPressSwitchToolButton::LongPressSwitchToolButton(QWidget* parent)
+    : QToolButton(parent) {
+    m_timer = new QTimer(this);
+    m_timer->setSingleShot(true);
+    m_timer->setInterval(m_intervalMs);
+    connect(m_timer, &QTimer::timeout, this, [this]() {
+        if (!(QApplication::mouseButtons() & Qt::LeftButton)) {
+            return;
+        }
+        m_longPressEmittedForThisPress = true;
+        emit longPressTriggered();
+    });
+}
+
+void LongPressSwitchToolButton::setLongPressInterval(int ms) {
+    m_intervalMs = std::max(50, ms);
+    if (m_timer) {
+        m_timer->setInterval(m_intervalMs);
+    }
+}
+
+void LongPressSwitchToolButton::mousePressEvent(QMouseEvent* event) {
+    if (event->button() == Qt::LeftButton) {
+        m_longPressEmittedForThisPress = false;
+        m_timer->start();
+    }
+    QToolButton::mousePressEvent(event);
+}
+
+void LongPressSwitchToolButton::mouseReleaseEvent(QMouseEvent* event) {
+    const bool left = (event->button() == Qt::LeftButton);
+    if (left && m_timer->isActive()) {
+        m_timer->stop();
+    }
+    const bool hadLongPress = left && m_longPressEmittedForThisPress;
+    QToolButton::mouseReleaseEvent(event);
+    if (hadLongPress) {
+        m_longPressEmittedForThisPress = false;
+        if (isDown()) {
+            setDown(false);
+        }
+        update();
+    }
+}