1 files changed, 133 insertions, 0 deletions
diff --git a/sd/source/ui/tools/IconCache.cxx b/sd/source/ui/tools/IconCache.cxx
new file mode 100644
index 000000000000..12e7b6b52e95
--- /dev/null
+++ b/sd/source/ui/tools/IconCache.cxx
@@ -0,0 +1,133 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_sd.hxx"
+
+#include "tools/IconCache.hxx"
+
+#include "sdresid.hxx"
+#include <hash_map>
+#include <osl/doublecheckedlocking.h>
+#include <osl/getglobalmutex.hxx>
+
+namespace sd {
+
+//===== IconCache::Implementation =============================================
+
+class IconCache::Implementation
+{
+private:
+    friend class IconCache;
+
+    /** This pointer holds a valid reference from first time that
+        IconCache::Instance() is called to the end of the sd module when the
+        cache is destroyed from SdGlobalResourceContainer.
+    */
+    static IconCache* mpInstance;
+
+    typedef ::std::hash_map<USHORT,Image> ImageContainer;
+    ImageContainer maContainer;
+
+    Image GetIcon (USHORT nResourceId);
+};
+
+IconCache* IconCache::Implementation::mpInstance = NULL;
+
+
+
+Image IconCache::Implementation::GetIcon (USHORT nResourceId)
+{
+    Image aResult;
+    ImageContainer::iterator iImage;
+    iImage = maContainer.find (nResourceId);
+    if (iImage == maContainer.end())
+    {
+        aResult = Image(BitmapEx(SdResId(nResourceId)));
+        maContainer[nResourceId] = aResult;
+    }
+    else
+        aResult = iImage->second;
+    return aResult;
+}
+
+
+
+
+//===== IconCache =============================================================
+
+//static
+IconCache& IconCache::Instance (void)
+{
+    if (Implementation::mpInstance == NULL)
+    {
+        ::osl::GetGlobalMutex aMutexFunctor;
+        ::osl::MutexGuard aGuard (aMutexFunctor());
+        if (Implementation::mpInstance == NULL)
+        {
+            IconCache* pCache = new IconCache ();
+            SdGlobalResourceContainer::Instance().AddResource (
+                ::std::auto_ptr<SdGlobalResource>(pCache));
+            OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
+            Implementation::mpInstance = pCache;
+        }
+    }
+    else
+    {
+        OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
+    }
+
+    DBG_ASSERT(Implementation::mpInstance!=NULL,
+        "IconCache::Instance(): instance is NULL");
+    return *Implementation::mpInstance;
+}
+
+
+
+
+Image IconCache::GetIcon (USHORT nResourceId)
+{
+    return mpImpl->GetIcon (nResourceId);
+}
+
+
+
+
+IconCache::IconCache (void)
+    : mpImpl (new Implementation())
+{
+}
+
+
+
+
+IconCache::~IconCache (void)
+{
+    // empty
+}
+
+} // end of namespace sd