give icon data directly to gtk, skipping internal loaders

Change-Id: I4168b78d68a99e56105c49e1a1b6e1aa457609af
Reviewed-on: https://gerrit.libreoffice.org/53812
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

2 files changed, 45 insertions, 0 deletions

diff --git a/vcl/source/image/ImageTree.cxx b/vcl/source/image/ImageTree.cxx
index 941812925190..2e20183b0da5 100644
--- a/vcl/source/image/ImageTree.cxx
+++ b/vcl/source/image/ImageTree.cxx
@@ -30,6 +30,11 @@ OUString ImageTree::getImageUrl(OUString const & rName, OUString const & rStyle,
     return mpImplImageTree->getImageUrl(rName, rStyle, rLang);
 }
 
+std::shared_ptr<SvMemoryStream> ImageTree::getImageStream(OUString const & rName, OUString const & rStyle, OUString const & rLang)
+{
+    return mpImplImageTree->getImageStream(rName, rStyle, rLang);
+}
+
 bool ImageTree::loadImage(OUString const & rName, OUString const & rStyle,
                           BitmapEx & rBitmap, bool bLocalized,
                           const ImageLoadFlags eFlags)
diff --git a/vcl/source/image/ImplImageTree.cxx b/vcl/source/image/ImplImageTree.cxx
index 296800681fa7..ba1f22155d27 100644
--- a/vcl/source/image/ImplImageTree.cxx
+++ b/vcl/source/image/ImplImageTree.cxx
@@ -256,6 +256,46 @@ OUString ImplImageTree::getImageUrl(OUString const & rName, OUString const & rSt
     return OUString();
 }
 
+std::shared_ptr<SvMemoryStream> ImplImageTree::getImageStream(OUString const & rName, OUString const & rStyle, OUString const & rLang)
+{
+    OUString aStyle(rStyle);
+
+    while (!aStyle.isEmpty())
+    {
+        try
+        {
+            setStyle(aStyle);
+
+            if (checkPathAccess())
+            {
+                IconSet& rIconSet = getCurrentIconSet();
+                const css::uno::Reference<css::container::XNameAccess>& rNameAccess = rIconSet.maNameAccess;
+
+                LanguageTag aLanguageTag(rLang);
+
+                for (OUString& rPath: getPaths(rName, aLanguageTag))
+                {
+                    if (rNameAccess->hasByName(rPath))
+                    {
+                        css::uno::Reference<css::io::XInputStream> aStream;
+                        bool ok = rNameAccess->getByName(rPath) >>= aStream;
+                        assert(ok);
+                        (void)ok; // prevent unused warning in release build
+                        return wrapStream(aStream);
+                    }
+                }
+            }
+        }
+        catch (const css::uno::Exception & e)
+        {
+            SAL_INFO("vcl", e);
+        }
+
+        aStyle = fallbackStyle(aStyle);
+    }
+    return std::shared_ptr<SvMemoryStream>();
+}
+
 OUString ImplImageTree::fallbackStyle(const OUString& rsStyle)
 {
     OUString sResult;