save mainwindows to qt 4.2

src/MainWindow.ui

@@ -15,25 +15,13 @@
   <property name="windowTitle" >
    <string/>
   </property>
-  <property name="unifiedTitleAndToolBarOnMac" >
-   <bool>false</bool>
-  </property>
   <widget class="QWidget" name="centralwidget" >
    <layout class="QVBoxLayout" >
-    <property name="spacing" >
-     <number>6</number>
-    </property>
-    <property name="leftMargin" >
-     <number>9</number>
-    </property>
-    <property name="topMargin" >
-     <number>9</number>
-    </property>
-    <property name="rightMargin" >
+    <property name="margin" >
      <number>9</number>
     </property>
-    <property name="bottomMargin" >
-     <number>9</number>
+    <property name="spacing" >
+     <number>6</number>
     </property>
     <item>
      <widget class="QTabWidget" name="tabs" >
@@ -48,54 +36,27 @@
         <string>Downloads</string>
        </attribute>
        <layout class="QVBoxLayout" >
-        <property name="spacing" >
-         <number>6</number>
-        </property>
-        <property name="leftMargin" >
-         <number>9</number>
-        </property>
-        <property name="topMargin" >
+        <property name="margin" >
          <number>9</number>
         </property>
-        <property name="rightMargin" >
-         <number>9</number>
-        </property>
-        <property name="bottomMargin" >
-         <number>9</number>
+        <property name="spacing" >
+         <number>6</number>
         </property>
         <item>
          <layout class="QVBoxLayout" >
-          <property name="spacing" >
-           <number>6</number>
-          </property>
-          <property name="leftMargin" >
+          <property name="margin" >
            <number>0</number>
           </property>
-          <property name="topMargin" >
-           <number>0</number>
-          </property>
-          <property name="rightMargin" >
-           <number>0</number>
-          </property>
-          <property name="bottomMargin" >
-           <number>0</number>
+          <property name="spacing" >
+           <number>6</number>
           </property>
           <item>
            <layout class="QHBoxLayout" >
-            <property name="spacing" >
-             <number>6</number>
-            </property>
-            <property name="leftMargin" >
-             <number>0</number>
-            </property>
-            <property name="topMargin" >
+            <property name="margin" >
              <number>0</number>
             </property>
-            <property name="rightMargin" >
-             <number>0</number>
-            </property>
-            <property name="bottomMargin" >
-             <number>0</number>
+            <property name="spacing" >
+             <number>6</number>
             </property>
             <item>
              <spacer>
@@ -307,32 +268,25 @@
            <enum>QTabWidget::West</enum>
           </property>
           <property name="currentIndex" >
-           <number>0</number>
+           <number>1</number>
           </property>
           <widget class="QWidget" name="log_tab" >
            <attribute name="title" >
             <string>Log</string>
            </attribute>
            <layout class="QVBoxLayout" >
-            <property name="spacing" >
-             <number>6</number>
-            </property>
-            <property name="leftMargin" >
-             <number>9</number>
-            </property>
-            <property name="topMargin" >
-             <number>9</number>
-            </property>
-            <property name="rightMargin" >
+            <property name="margin" >
              <number>9</number>
             </property>
-            <property name="bottomMargin" >
-             <number>9</number>
+            <property name="spacing" >
+             <number>6</number>
             </property>
             <item>
              <widget class="QTextBrowser" name="infoBar" >
               <property name="sizePolicy" >
-               <sizepolicy vsizetype="Expanding" hsizetype="Expanding" >
+               <sizepolicy>
+                <hsizetype>7</hsizetype>
+                <vsizetype>7</vsizetype>
                 <horstretch>0</horstretch>
                 <verstretch>0</verstretch>
                </sizepolicy>
@@ -355,20 +309,11 @@
             <string>IP filter</string>
            </attribute>
            <layout class="QVBoxLayout" >
-            <property name="spacing" >
-             <number>6</number>
-            </property>
-            <property name="leftMargin" >
-             <number>9</number>
-            </property>
-            <property name="topMargin" >
-             <number>9</number>
-            </property>
-            <property name="rightMargin" >
+            <property name="margin" >
              <number>9</number>
             </property>
-            <property name="bottomMargin" >
-             <number>9</number>
+            <property name="spacing" >
+             <number>6</number>
             </property>
             <item>
              <widget class="QTextBrowser" name="textBlockedUsers" >
@@ -463,10 +408,7 @@
     </size>
    </property>
    <attribute name="toolBarArea" >
-    <enum>TopToolBarArea</enum>
-   </attribute>
-   <attribute name="toolBarBreak" >
-    <bool>false</bool>
+    <number>4</number>
    </attribute>
    <addaction name="actionOpen" />
    <addaction name="actionDownload_from_URL" />