Initial release

engine/vendor/vst3sdk/vstgui4/vstgui/lib/cdropsource.cpp

@@ -0,0 +1,89 @@
+// This file is part of VSTGUI. It is subject to the license terms 
+// in the LICENSE file found in the top-level directory of this
+// distribution and at http://github.com/steinbergmedia/vstgui/LICENSE
+
+#include "cdropsource.h"
+
+namespace VSTGUI {
+
+//-----------------------------------------------------------------------------
+CDropSource::CDropEntry::CDropEntry (const void* inBuffer, uint32_t inBufferSize, Type inType)
+: type (inType)
+{
+	buffer.allocate (inBufferSize);
+	if (buffer.get ())
+		memcpy (buffer.get (), inBuffer, buffer.size ());
+}
+
+//-----------------------------------------------------------------------------
+CDropSource::CDropEntry::CDropEntry (const CDropEntry& entry)
+: type (entry.type)
+{
+	buffer.allocate (entry.buffer.size ());
+	if (buffer.get ())
+		memcpy (buffer.get (), entry.buffer.get (), buffer.size ());
+}
+
+//-----------------------------------------------------------------------------
+CDropSource::CDropEntry::CDropEntry (CDropEntry&& entry) noexcept
+{
+	buffer = std::move (entry.buffer);
+	type = entry.type;
+	entry.type = kError;
+}
+
+//-----------------------------------------------------------------------------
+CDropSource::CDropSource ()
+{
+}
+
+//-----------------------------------------------------------------------------
+CDropSource::CDropSource (const void* buffer, uint32_t bufferSize, Type type)
+{
+	add (buffer, bufferSize, type);
+}
+
+//-----------------------------------------------------------------------------
+bool CDropSource::add (const void* buffer, uint32_t bufferSize, Type type)
+{
+	if (entries.size () == entries.max_size ())
+		return false;
+	entries.emplace_back (buffer, bufferSize, type);
+	return true;
+}
+
+//-----------------------------------------------------------------------------
+uint32_t CDropSource::getCount () const
+{
+	return static_cast<uint32_t> (entries.size ());
+}
+
+//-----------------------------------------------------------------------------
+uint32_t CDropSource::getDataSize (uint32_t index) const
+{
+	return index < getCount () ? static_cast<uint32_t> (entries[index].buffer.size ()) : 0;
+}
+
+//-----------------------------------------------------------------------------
+CDropSource::Type CDropSource::getDataType (uint32_t index) const
+{
+	return index < getCount () ? entries[index].type : kError;
+}
+
+//-----------------------------------------------------------------------------
+uint32_t CDropSource::getData (uint32_t index, const void*& buffer, Type& type) const
+{
+	if (index >= getCount ())
+		return 0;
+	buffer = entries[index].buffer.get ();
+	type = entries[index].type;
+	return static_cast<uint32_t> (entries[index].buffer.size ());
+}
+
+//-----------------------------------------------------------------------------
+SharedPointer<IDataPackage> CDropSource::create (const void* buffer, uint32_t bufferSize, Type type)
+{
+	return makeOwned<CDropSource> (buffer, bufferSize, type);
+}
+
+} // VSTGUI