showtextdlg: use QButonBox instead of QPushButton

Author: stokito

src/showtextdlg.cpp

@@ -35,7 +35,6 @@ ShowTextDlg::ShowTextDlg(const QString &fname, bool rich, QWidget *parent) : QDi
         ui_.textEdit->setTextInteractionFlags(Qt::TextBrowserInteraction);
     }
 
-    connect(ui_.okButton, SIGNAL(clicked()), SLOT(accept()));
     resize(560, 384);
 }
 
@@ -52,6 +51,5 @@ ShowTextDlg::ShowTextDlg(const QString &text, bool nonfile, bool rich, QWidget *
         ui_.textEdit->setTextInteractionFlags(Qt::TextBrowserInteraction);
     }
 
-    connect(ui_.okButton, SIGNAL(clicked()), SLOT(accept()));
     resize(560, 384);
 }

src/showtextdlg.ui

@@ -33,42 +33,36 @@
    <item>
     <layout class="QHBoxLayout" name="horizontalLayout">
      <item>
-      <spacer name="spacerOkLeft">
-       <property name="orientation">
-        <enum>Qt::Horizontal</enum>
+      <widget class="QDialogButtonBox" name="buttonBox">
+       <property name="standardButtons">
+        <set>QDialogButtonBox::Ok</set>
        </property>
-       <property name="sizeHint" stdset="0">
-        <size>
-         <width>0</width>
-         <height>0</height>
-        </size>
-       </property>
-      </spacer>
-     </item>
-     <item>
-      <widget class="QPushButton" name="okButton">
-       <property name="text">
-        <string>&amp;OK</string>
+       <property name="centerButtons">
+        <bool>true</bool>
        </property>
       </widget>
      </item>
-     <item>
-      <spacer name="spacerOkRight">
-       <property name="orientation">
-        <enum>Qt::Horizontal</enum>
-       </property>
-       <property name="sizeHint" stdset="0">
-        <size>
-         <width>0</width>
-         <height>0</height>
-        </size>
-       </property>
-      </spacer>
-     </item>
     </layout>
    </item>
   </layout>
  </widget>
  <resources/>
- <connections/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>ShowTextDlg</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>279</x>
+     <y>352</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>279</x>
+     <y>191</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
 </ui>