[TD]allow showing units on individual dimensions

src/Mod/TechDraw/Gui/DlgPrefsTechDrawDimensions.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>440</width>
-    <height>508</height>
+    <width>495</width>
+    <height>692</height>
    </rect>
   </property>
   <property name="sizePolicy">
@@ -35,7 +35,7 @@
       <item>
        <layout class="QGridLayout" name="gridLayout">
         <item row="8" column="2">
-         <widget class="Gui::PrefUnitSpinBox" name="plsb_ArrowSize">
+         <widget class="Gui::PrefUnitSpinBox" name="plsb_ArrowSize" native="true">
           <property name="sizePolicy">
            <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
             <horstretch>0</horstretch>
@@ -45,7 +45,7 @@
           <property name="toolTip">
            <string>Arrowhead size</string>
           </property>
-          <property name="value">
+          <property name="value" stdset="0">
            <double>5.000000000000000</double>
           </property>
           <property name="prefEntry" stdset="0">
@@ -156,6 +156,11 @@
             <verstretch>0</verstretch>
            </sizepolicy>
           </property>
+          <property name="font">
+           <font>
+            <italic>true</italic>
+           </font>
+          </property>
           <property name="toolTip">
            <string>Append unit to dimension values</string>
           </property>
@@ -183,7 +188,7 @@
          </widget>
         </item>
         <item row="4" column="2">
-         <widget class="Gui::PrefUnitSpinBox" name="plsb_FontSize">
+         <widget class="Gui::PrefUnitSpinBox" name="plsb_FontSize" native="true">
           <property name="sizePolicy">
            <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
             <horstretch>0</horstretch>
@@ -193,7 +198,7 @@
           <property name="toolTip">
            <string>Dimension text font size</string>
           </property>
-          <property name="value">
+          <property name="value" stdset="0">
            <double>4.000000000000000</double>
           </property>
           <property name="prefEntry" stdset="0">
@@ -544,7 +549,7 @@ Multiplier of 'Font Size'</string>
         </property>
        </widget>
       </item>
-	     <item row="0" column="1">
+      <item row="0" column="1">
        <widget class="QComboBox" name="dimensioningMode">
         <property name="toolTip">
          <string>Select the type of dimensioning tools for your toolbar:
@@ -562,7 +567,7 @@ This setting is only for the toolbar. Whichever you choose, all tools are always
         </property>
        </widget>
       </item>
-	  <item row="1" column="1">
+      <item row="1" column="1">
        <widget class="QComboBox" name="radiusDiameterMode">
         <property name="toolTip">
          <string>While using the Dimension tool you may choose how to handle circles and arcs:
@@ -627,9 +632,7 @@ This setting is only for the toolbar. Whichever you choose, all tools are always
    <header>Gui/PrefWidgets.h</header>
   </customwidget>
  </customwidgets>
- <resources>
-  <include location="Resources/TechDraw.qrc"/>
- </resources>
+ <resources/>
  <connections>
   <connection>
    <sender>cbGlobalDecimals</sender>

src/Mod/TechDraw/Gui/QGIViewDimension.cpp

@@ -548,19 +548,6 @@ void QGIDatumLabel::setToleranceString()
     updateFrameRect();
 }
 
-void QGIDatumLabel::setUnitString(QString text)
-{
-    prepareGeometryChange();
-    if (text.isEmpty()) {
-        m_unitText->hide();
-    }
-    else {
-        m_unitText->setPlainText(text);
-        m_unitText->show();
-    }
-    updateFrameRect();
-}
-
 
 int QGIDatumLabel::getPrecision()
 {

src/Mod/TechDraw/Gui/QGIViewDimension.h

@@ -83,7 +83,6 @@ public:
     QFont getFont() const { return m_dimText->font(); }
     void setDimString(QString text);
     void setDimString(QString text, qreal maxWidth);
-    void setUnitString(QString text);
     void setToleranceString();
     void setPrettySel();
     void setPrettyPre();