Update dockitem.cpp

修改了变量名，更符合阅读理解

Author: xinguankeli

frame/item/dockitem.cpp

@@ -23,7 +23,7 @@ QPointer<DockPopupWindow> DockItem::PopupWindow(nullptr);
 DockItem::DockItem(QWidget *parent)
     : QWidget(parent)
     , m_hover(false)
-    , m_down(false)
+    , m_pressed(false)
     , m_popupShown(false)
     , m_tapAndHold(false)
     , m_draging(false)
@@ -135,14 +135,14 @@ void DockItem::updatePopupPosition()
 
 void DockItem::paintEvent(QPaintEvent *e)
 {
-    if(m_hover && !m_down)
+    if(m_hover && !m_pressed)
     {
         QPainter painter(this);
         painter.setBrush(QBrush(QColor(248, 248, 255)));
         painter.setPen(Qt::NoPen);
         QRect tempRect = rect();
         painter.drawRect(tempRect.x(), tempRect.y(), tempRect.width(), tempRect.height());
-    }else if(m_hover && m_down)
+    }else if(m_hover && m_pressed)
     {
         QPainter painter(this);
         painter.setBrush(Qt::gray);
@@ -156,7 +156,7 @@ void DockItem::paintEvent(QPaintEvent *e)
 void DockItem::mousePressEvent(QMouseEvent *e)
 {
     m_popupTipsDelayTimer->stop();
-    m_down = true;
+    m_pressed = true;
     hideNonModel();
 
     if (e->button() == Qt::RightButton) {
@@ -195,7 +195,7 @@ void DockItem::leaveEvent(QEvent *e)
     QWidget::leaveEvent(e);
 
     m_hover = false;
-    m_down = false;
+    m_pressed = false;
     //FIXME: 可能是qt的bug，概率性导致崩溃，待修复
 //    m_hoverEffect->setHighlighting(false);
     m_popupTipsDelayTimer->stop();
@@ -209,7 +209,7 @@ void DockItem::leaveEvent(QEvent *e)
 
 void DockItem::mouseReleaseEvent(QMouseEvent *event)
 {
-    m_down = false;
+    m_pressed = false;
     QWidget::mouseReleaseEvent(event);
     update();
 }