Widgets|libappfw: Added utility methods for Margins

Setting left/right or top/bottom margins at once.

doomsday/sdk/libappfw/include/de/framework/margins.h

@@ -45,6 +45,8 @@ class LIBAPPFW_PUBLIC Margins
     Margins &setRight (DotPath const &rightMarginId);
     Margins &setTop   (DotPath const &topMarginId);
     Margins &setBottom(DotPath const &bottomMarginId);
+    Margins &setLeftRight(DotPath const &marginId);
+    Margins &setTopBottom(DotPath const &marginId);
     Margins &set      (ui::Direction dir, DotPath const &marginId);
     Margins &set      (DotPath const &marginId);
 

doomsday/sdk/libappfw/include/de/widgets/scrollareawidget.h

@@ -26,7 +26,7 @@ namespace de {
 /**
  * Scrollable area.
  *
- * Provides a RuleRectangle where child widgets can be placedBase class for widgets
+ * Provides a RuleRectangle where child widgets can be placed.
  *
  * ScrollAreaWidget does not control its own position or size. The user must
  * define its rectangle. The content rule rectangle is defined in relation to

doomsday/sdk/libappfw/src/margins.cpp

@@ -13,7 +13,7 @@
  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
  * General Public License for more details. You should have received a copy of
  * the GNU Lesser General Public License along with this program; if not, see:
- * http://www.gnu.org/licenses</small> 
+ * http://www.gnu.org/licenses</small>
  */
 
 #include "de/ui/Margins"
@@ -156,6 +156,16 @@ Margins &Margins::setRight(DotPath const &rightMarginId)
     return set(ui::Right, rightMarginId);
 }
 
+Margins &Margins::setLeftRight(DotPath const &marginId)
+{
+    return set(ui::Left, marginId).set(ui::Right, marginId);
+}
+
+Margins &Margins::setTopBottom(DotPath const &marginId)
+{
+    return set(ui::Up, marginId).set(ui::Down, marginId);
+}
+
 Margins &Margins::setTop(DotPath const &topMarginId)
 {
     return set(ui::Up, topMarginId);