add：添加文件路径支持拖入。

MainWidget.ui

@@ -6,7 +6,7 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>1056</width>
+    <width>1102</width>
     <height>682</height>
    </rect>
   </property>
@@ -35,7 +35,7 @@
        </widget>
       </item>
       <item>
-       <widget class="QLineEdit" name="edStatus"/>
+       <widget class="QCustomQLineEdit" name="edStatus"/>
       </item>
       <item>
        <widget class="QComboBox" name="cbConfig"/>
@@ -57,7 +57,7 @@
       <item>
        <widget class="QPushButton" name="btnFormat">
         <property name="text">
-         <string>格</string>
+         <string>重排版</string>
         </property>
        </widget>
       </item>
@@ -87,7 +87,7 @@
       <item>
        <widget class="Line" name="line">
         <property name="orientation">
-         <enum>Qt::Orientation::Vertical</enum>
+         <enum>Qt::Vertical</enum>
         </property>
        </widget>
       </item>
@@ -142,7 +142,7 @@
       <item>
        <widget class="Line" name="line_2">
         <property name="orientation">
-         <enum>Qt::Orientation::Vertical</enum>
+         <enum>Qt::Vertical</enum>
         </property>
        </widget>
       </item>
@@ -227,9 +227,6 @@
      </item>
      <item>
       <spacer name="horizontalSpacer_2">
-       <property name="orientation">
-        <enum>Qt::Orientation::Horizontal</enum>
-       </property>
        <property name="sizeHint" stdset="0">
         <size>
          <width>40</width>
@@ -247,9 +244,6 @@
      </item>
      <item>
       <spacer name="horizontalSpacer">
-       <property name="orientation">
-        <enum>Qt::Orientation::Horizontal</enum>
-       </property>
        <property name="sizeHint" stdset="0">
         <size>
          <width>40</width>
@@ -329,6 +323,13 @@
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>QCustomQLineEdit</class>
+   <extends>QLineEdit</extends>
+   <header>QCustomQLineEdit.h</header>
+  </customwidget>
+ </customwidgets>
  <tabstops>
   <tabstop>btnSelectFile</tabstop>
   <tabstop>edStatus</tabstop>