Added wxRichToolTip class.

It can be used to show more customizable tooltips than the native wxToolTip
but at the price of using generic implementation in some cases (actually
almost always now, with the exceptions of text control tooltips under MSW).

Extra features include:
 - The balloon-like tooltip form.
 - Possibility to show an icon.
 - Title display in a different form.

More customization could be added later. It should be also possible to fully
implement this class natively under MSW.

Update the dialogs sample to show the rich tooltips in action.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69463 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

configure

@@ -1854,6 +1854,7 @@ Optional Features:
   --enable-radiobox       use wxRadioBox class
   --enable-radiobtn       use wxRadioButton class
   --enable-richmsgdlg     use wxRichMessageDialog class
+  --enable-richtooltip    use wxRichToolTip class
   --enable-rearrangectrl  use wxRearrangeList/Ctrl/Dialog
   --enable-sash           use wxSashWindow class
   --enable-scrollbar      use wxScrollBar class and scrollable windows
@@ -9900,6 +9901,7 @@ if test "$wxUSE_CONTROLS" = "no"; then
     DEFAULT_wxUSE_RADIOBOX=no
     DEFAULT_wxUSE_RADIOBTN=no
     DEFAULT_wxUSE_RICHMSGDLG=no
+    DEFAULT_wxUSE_RICHTOOLTIP=no
     DEFAULT_wxUSE_REARRANGECTRL=no
     DEFAULT_wxUSE_SASH=no
     DEFAULT_wxUSE_SCROLLBAR=no
@@ -11906,6 +11908,50 @@ fi
 echo "${ECHO_T}$result" >&6; }
 
 
+          enablestring=
+          defaultval=$wxUSE_ALL_FEATURES
+          if test -z "$defaultval"; then
+              if test x"$enablestring" = xdisable; then
+                  defaultval=yes
+              else
+                  defaultval=no
+              fi
+          fi
+
+          { echo "$as_me:$LINENO: checking for --${enablestring:-enable}-richtooltip" >&5
+echo $ECHO_N "checking for --${enablestring:-enable}-richtooltip... $ECHO_C" >&6; }
+          # Check whether --enable-richtooltip was given.
+if test "${enable_richtooltip+set}" = set; then
+  enableval=$enable_richtooltip;
+                          if test "$enableval" = yes; then
+                            wx_cv_use_richtooltip='wxUSE_RICHTOOLTIP=yes'
+                          else
+                            wx_cv_use_richtooltip='wxUSE_RICHTOOLTIP=no'
+                          fi
+
+else
+
+                          wx_cv_use_richtooltip='wxUSE_RICHTOOLTIP=${'DEFAULT_wxUSE_RICHTOOLTIP":-$defaultval}"
+
+fi
+
+
+          eval "$wx_cv_use_richtooltip"
+
+          if test x"$enablestring" = xdisable; then
+            if test $wxUSE_RICHTOOLTIP = no; then
+              result=yes
+            else
+              result=no
+            fi
+          else
+            result=$wxUSE_RICHTOOLTIP
+          fi
+
+          { echo "$as_me:$LINENO: result: $result" >&5
+echo "${ECHO_T}$result" >&6; }
+
+
           enablestring=
           defaultval=$wxUSE_ALL_FEATURES
           if test -z "$defaultval"; then
@@ -47880,6 +47926,13 @@ _ACEOF
 
 fi
 
+if test "$wxUSE_RICHTOOLTIP" = "yes"; then
+    cat >>confdefs.h <<\_ACEOF
+#define wxUSE_RICHTOOLTIP 1
+_ACEOF
+
+fi
+
 if test "$wxUSE_SASH" = "yes"; then
     cat >>confdefs.h <<\_ACEOF
 #define wxUSE_SASH 1
@@ -50447,7 +50500,7 @@ else
 fi
 
 
-    INSTALL_DIR="mkdir -p"
+        INSTALL_DIR="mkdir -p"
 
 
     LDFLAGS_GUI=