Add draft grid color setting

src/Mod/Draft/DraftTrackers.py

@@ -808,7 +808,7 @@ class wireTracker(Tracker):
 class gridTracker(Tracker):
     "A grid tracker"
     def __init__(self):
-        col = [0.2,0.2,0.3]
+        col = self.getGridColor()
         pick = coin.SoPickStyle()
         pick.style.setValue(coin.SoPickStyle.UNPICKABLE)
         self.trans = coin.SoTransform()
@@ -844,6 +844,13 @@ class gridTracker(Tracker):
         Tracker.__init__(self,children=[s],name="gridTracker")
         self.reset()
 
+    def getGridColor(self):
+        color = Draft.getParam("gridColor", 842157055)
+        r = ((color>>24)&0xFF)/255
+        g = ((color>>16)&0xFF)/255
+        b = ((color>>8)&0xFF)/255
+        return [r, g, b]
+
     def update(self):
         "redraws the grid"
         # resize the grid to make sure it fits an exact pair number of main lines

src/Mod/Draft/Resources/ui/preferences-draftsnap.ui

@@ -468,6 +468,50 @@
         </item>
        </layout>
       </item>
+      <item>
+       <layout class="QHBoxLayout" name="horizontalLayout_7">
+        <item>
+         <widget class="QLabel" name="label_2">
+          <property name="text">
+           <string>Grid color</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <spacer name="horizontalSpacer_2">
+          <property name="orientation">
+           <enum>Qt::Horizontal</enum>
+          </property>
+          <property name="sizeHint" stdset="0">
+           <size>
+            <width>40</width>
+            <height>20</height>
+           </size>
+          </property>
+         </spacer>
+        </item>
+        <item>
+         <widget class="Gui::PrefColorButton" name="gui::prefcolorbutton">
+          <property name="toolTip">
+           <string>The default color for new objects</string>
+          </property>
+          <property name="color" stdset="0">
+           <color>
+            <red>50</red>
+            <green>50</green>
+            <blue>75</blue>
+           </color>
+          </property>
+          <property name="prefEntry" stdset="0">
+           <cstring>gridColor</cstring>
+          </property>
+          <property name="prefPath" stdset="0">
+           <cstring>Mod/Draft</cstring>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
      </layout>
     </widget>
    </item>
@@ -489,11 +533,21 @@
  <layoutdefault spacing="6" margin="11"/>
  <pixmapfunction>qPixmapFromMimeSource</pixmapfunction>
  <customwidgets>
+  <customwidget>
+   <class>Gui::ColorButton</class>
+   <extends>QPushButton</extends>
+   <header>Gui/Widgets.h</header>
+  </customwidget>
   <customwidget>
    <class>Gui::PrefSpinBox</class>
    <extends>QSpinBox</extends>
    <header>Gui/PrefWidgets.h</header>
   </customwidget>
+  <customwidget>
+   <class>Gui::PrefColorButton</class>
+   <extends>Gui::ColorButton</extends>
+   <header>Gui/PrefWidgets.h</header>
+  </customwidget>
   <customwidget>
    <class>Gui::PrefCheckBox</class>
    <extends>QCheckBox</extends>