widgettheme: support multiple spinbox orientations

This adds the ability to define the spinbox orientation that has
decrease and increase buttons on the right side and can be changed
by adding "orientation="edit-decrease-increase" to the Spinbox
"Entire" part in the widget definition.

Change-Id: I3601a987a4abb8d998e9cd2d8973d794d3d66f9b
Reviewed-on: https://gerrit.libreoffice.org/72662
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>

vcl/source/gdi/FileDefinitionWidgetDraw.cxx

@@ -690,9 +690,11 @@ bool FileDefinitionWidgetDraw::getNativeControlRegion(
                 return false;
             Size aButtonSizeDown(pButtonDownPart->mnWidth, pButtonDownPart->mnHeight);
 
-            OString sOrientation = "decrease-edit-increase";
+            auto const& pEntirePart
+                = m_pWidgetDefinition->getDefinition(eType, ControlPart::Entire);
+            OString sOrientation = pEntirePart->msOrientation;
 
-            if (sOrientation == "decrease-edit-increase")
+            if (sOrientation.isEmpty() || sOrientation == "decrease-edit-increase")
             {
                 if (ePart == ControlPart::ButtonUp)
                 {
@@ -728,7 +730,7 @@ bool FileDefinitionWidgetDraw::getNativeControlRegion(
                     return true;
                 }
             }
-            else
+            else if (sOrientation == "edit-decrease-increase")
             {
                 if (ePart == ControlPart::ButtonUp)
                 {

vcl/source/gdi/WidgetDefinitionReader.cxx

@@ -308,6 +308,12 @@ void WidgetDefinitionReader::readDefinition(tools::XmlWalker& rWalker,
                 pPart->mnMarginWidth = nMarginWidth;
             }
 
+            OString sOrientation = rWalker.attribute("orientation");
+            if (!sOrientation.isEmpty())
+            {
+                pPart->msOrientation = sOrientation;
+            }
+
             rWidgetDefinition.maDefinitions.emplace(ControlTypeAndPart(eType, ePart), pPart);
             readPart(rWalker, pPart);
         }