Add wxArtProvider using Tango icons.

The icons are embedded as PNG images directly in the source code to avoid the
need for installing them. This does make the library larger though so provide
a wxUSE_ARTPROVIDER_TANGO option to turn the new code and associated bloat off.
Also turn it off by default under wxGTK as the native art provider is used
there anyhow.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@66505 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

configure

@@ -1806,6 +1806,7 @@ Optional Features:
   --disable-controls      disable compilation of all standard controls
   --enable-accel          use accelerators
   --enable-animatectrl    use wxAnimationCtrl class
+  --enable-arttango       use Tango icons in wxArtProvider
   --enable-bmpbutton      use wxBitmapButton class
   --enable-bmpcombobox    use wxBitmapComboBox class
   --enable-button         use wxButton class
@@ -2982,6 +2983,7 @@ DEFAULT_wxUSE_ACCESSIBILITY=no
 DEFAULT_wxUSE_IPV6=no
 DEFAULT_wxUSE_GSTREAMER8=no
 
+DEFAULT_wxUSE_ARTPROVIDER_TANGO=auto
 DEFAULT_wxUSE_UNICODE_UTF8=auto
 DEFAULT_wxUSE_OPENGL=auto
 DEFAULT_wxUSE_MEDIACTRL=auto
@@ -3282,7 +3284,8 @@ echo "${ECHO_T}$result" >&6; }
 
 
 if test "$wxUSE_ALL_FEATURES" = "no"; then
-                    DEFAULT_wxUSE_MEDIACTRL=no
+                    DEFAULT_wxUSE_ARTPROVIDER_TANGO=no
+    DEFAULT_wxUSE_MEDIACTRL=no
 fi
 
 
@@ -9896,6 +9899,50 @@ 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}-arttango" >&5
+echo $ECHO_N "checking for --${enablestring:-enable}-arttango... $ECHO_C" >&6; }
+          # Check whether --enable-arttango was given.
+if test "${enable_arttango+set}" = set; then
+  enableval=$enable_arttango;
+                          if test "$enableval" = yes; then
+                            wx_cv_use_arttango='wxUSE_ARTPROVIDER_TANGO=yes'
+                          else
+                            wx_cv_use_arttango='wxUSE_ARTPROVIDER_TANGO=no'
+                          fi
+
+else
+
+                          wx_cv_use_arttango='wxUSE_ARTPROVIDER_TANGO=${'DEFAULT_wxUSE_ARTPROVIDER_TANGO":-$defaultval}"
+
+fi
+
+
+          eval "$wx_cv_use_arttango"
+
+          if test x"$enablestring" = xdisable; then
+            if test $wxUSE_ARTPROVIDER_TANGO = no; then
+              result=yes
+            else
+              result=no
+            fi
+          else
+            result=$wxUSE_ARTPROVIDER_TANGO
+          fi
+
+          { echo "$as_me:$LINENO: result: $result" >&5
+echo "${ECHO_T}$result" >&6; }
+
+
           enablestring=
           defaultval=$wxUSE_ALL_FEATURES
           if test -z "$defaultval"; then
@@ -47528,6 +47575,23 @@ _ACEOF
     SAMPLES_SUBDIRS="$SAMPLES_SUBDIRS access"
 fi
 
+if test "$wxUSE_ARTPROVIDER_TANGO" = "auto"; then
+            if test "$wxUSE_GTK" != 1; then
+                if test "$wxUSE_LIBPNG" != no -a \
+                "$wxUSE_IMAGE" = yes -a \
+                "$wxUSE_STREAMS" = yes; then
+            wxUSE_ARTPROVIDER_TANGO="yes"
+        fi
+    fi
+fi
+
+if test "$wxUSE_ARTPROVIDER_TANGO" = "yes"; then
+    cat >>confdefs.h <<\_ACEOF
+#define wxUSE_ARTPROVIDER_TANGO 1
+_ACEOF
+
+fi
+
 if test "$wxUSE_DRAGIMAGE" = "yes"; then
     cat >>confdefs.h <<\_ACEOF
 #define wxUSE_DRAGIMAGE 1