diff --git a/frame/window/mainpanelcontrol.cpp b/frame/window/mainpanelcontrol.cpp
index cff384ee5..f17589b37 100755
--- a/frame/window/mainpanelcontrol.cpp
+++ b/frame/window/mainpanelcontrol.cpp
@@ -58,14 +58,14 @@ MainPanelControl::MainPanelControl(DockInter *dockInter, QWidget *parent)
     : QWidget(parent)
     , m_mainPanelLayout(new QBoxLayout(QBoxLayout::LeftToRight, this))
     , m_fixedAreaWidget(new QWidget(this))
-    , m_fixedAreaLayout(new QBoxLayout(QBoxLayout::LeftToRight, this))
+    , m_fixedAreaLayout(new QBoxLayout(QBoxLayout::LeftToRight))
     , m_fixedSpliter(new QLabel(this))
     , m_appAreaWidget(new QWidget(this))
     , m_appAreaSonWidget(new QWidget(this))
-    , m_appAreaSonLayout(new QBoxLayout(QBoxLayout::LeftToRight, this))
+    , m_appAreaSonLayout(new QBoxLayout(QBoxLayout::LeftToRight))
     , m_appSpliter(new QLabel(this))
     , m_recentAreaWidget(new QWidget(this))
-    , m_recentLayout(new QBoxLayout(QBoxLayout::LeftToRight, this))
+    , m_recentLayout(new QBoxLayout(QBoxLayout::LeftToRight))
     , m_recentSpliter(new QLabel(this))
     , m_toolAreaWidget(new QWidget(this))
     , m_toolAreaLayout(new QBoxLayout(QBoxLayout::LeftToRight, m_toolAreaWidget))