SM add some help to the examples

This way the example buttons will have a name for better
accessibility, instead of being blank.

Change-Id: Ib8a509bc7a9895297eecd8a0db9455f367d93159
Reviewed-on: https://gerrit.libreoffice.org/73171
Tested-by: Jenkins
Reviewed-by: Jan-Marek Glogowski <glogow@fbihome.de>

starmath/inc/strings.hrc

@@ -282,6 +282,12 @@
 #define RID_CATEGORY_OTHERS                 NC_("RID_CATEGORY_OTHERS", "Others" )
 #define RID_CATEGORY_EXAMPLES               NC_("RID_CATEGORY_EXAMPLES", "Examples" )
 
+#define RID_EXAMPLE_CIRCUMFERENCE_HELP      NC_("RID_EXAMPLE_CIRCUMFERENCE_HELP", "Circumference" )
+#define RID_EXAMPLE_MASS_ENERGY_EQUIV_HELP  NC_("RID_EXAMPLE_MASS_ENERGY_EQUIV_HELP", "Mass–energy equivalence" )
+#define RID_EXAMPLE_PYTHAGOREAN_THEO_HELP   NC_("RID_EXAMPLE_PYTHAGOREAN_THEO_HELP", "Pythagorean theorem" )
+#define RID_EXAMPLE_A_SIMPLE_SERIES_HELP    NC_("RID_EXAMPLE_A_SIMPLE_SERIES_HELP", "A simple series" )
+#define RID_EXAMPLE_GAUSS_DISTRIBUTION_HELP NC_("RID_EXAMPLE_GAUSS_DISTRIBUTION_HELP", "Gauss distribution" )
+
 #define RID_FONTREGULAR                     NC_("RID_FONTREGULAR", "Standard" )
 #define RID_FONTITALIC                      NC_("RID_FONTITALIC", "Italic" )
 #define RID_FONTBOLD                        NC_("RID_FONTBOLD", "Bold" )

starmath/source/ElementsDockingWindow.cxx

@@ -234,11 +234,11 @@ const SmElementDescr SmElementsControl::m_aOthersList[] =
 
 const SmElementDescr SmElementsControl::m_aExamplesList[] =
 {
-    {"C=%pi cdot d = 2 cdot %pi cdot r", nullptr},
-    {"E=mc^2", nullptr},
-    {"a^2 + b^2 = c^2", nullptr},
-    {"f ( x ) = sum from { { i = 0 } } to { infinity } { {f^{(i)}(0)} over {i!} x^i}", nullptr},
-    {"f ( x ) = {1} over {%sigma sqrt{2%pi} }func e^-{{(x-%mu)^2} over {2%sigma^2}}", nullptr},
+    {"C=%pi cdot d = 2 cdot %pi cdot r", RID_EXAMPLE_CIRCUMFERENCE_HELP},
+    {"E=mc^2", RID_EXAMPLE_MASS_ENERGY_EQUIV_HELP},
+    {"a^2 + b^2 = c^2", RID_EXAMPLE_PYTHAGOREAN_THEO_HELP},
+    {"f ( x ) = sum from { { i = 0 } } to { infinity } { {f^{(i)}(0)} over {i!} x^i}", RID_EXAMPLE_A_SIMPLE_SERIES_HELP},
+    {"f ( x ) = {1} over {%sigma sqrt{2%pi} }func e^-{{(x-%mu)^2} over {2%sigma^2}}", RID_EXAMPLE_GAUSS_DISTRIBUTION_HELP},
 };
 
 #define AS_PAIR(a) a, SAL_N_ELEMENTS(a)