Implement Copy to Clipboard for images

src/qt/dataobj.cpp

@@ -12,6 +12,9 @@
     #pragma hdrstop
 #endif
 
+#include <QPixmap>
+#include <QBuffer>
+
 #include "wx/dataobj.h"
 #include "wx/scopedarray.h"
 
@@ -153,11 +156,54 @@ bool wxDataObject::IsSupportedFormat(const wxDataFormat& format,
 //############################################################################
 
 wxBitmapDataObject::wxBitmapDataObject()
+    : m_imageBytes(new QByteArray())
 {
 }
 
-wxBitmapDataObject::wxBitmapDataObject( const wxBitmap &WXUNUSED(bitmap) )
+wxBitmapDataObject::wxBitmapDataObject( const wxBitmap &bitmap )
+    : wxBitmapDataObjectBase( bitmap ),
+    m_imageBytes(new QByteArray())
 {
+    DoConvertToPng();
+}
+
+wxBitmapDataObject::~wxBitmapDataObject()
+{
+}
+
+void wxBitmapDataObject::SetBitmap(const wxBitmap &bitmap)
+{
+    wxBitmapDataObjectBase::SetBitmap(bitmap);
+
+    DoConvertToPng();
+}
+
+size_t wxBitmapDataObject::GetDataSize() const
+{
+    return m_imageBytes->size();
+}
+
+bool wxBitmapDataObject::GetDataHere(void *buf) const
+{
+    memcpy(buf, m_imageBytes->constData(), GetDataSize());
+    return true;
+}
+
+bool wxBitmapDataObject::SetData(const wxDataFormat &WXUNUSED(format), size_t len, const void *buf)
+{
+    m_imageBytes->resize(len);
+    memcpy(m_imageBytes->data(), buf, len);
+    QPixmap pix;
+    pix.loadFromData(*m_imageBytes);
+    m_bitmap = wxBitmap(pix);
+    return true;
+}
+
+void wxBitmapDataObject::DoConvertToPng()
+{
+    QBuffer buffer(m_imageBytes.get());
+    buffer.open(QIODevice::WriteOnly);
+    m_bitmap.GetHandle()->save(&buffer, "PNG");
 }
 
 //#############################################################################