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Get simple (text) drag and drop case working with drop source.

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We ended up not needing the underlying QMimeData-based implementation, as the classes sitting on top of it
bypassed it anyway. It now treats the hierarchy as a pure data storage mechanism, generating the
QMimeData when drag-drop is initiated.
This commit is contained in:
Jay Nabonne
2019-01-28 15:30:25 +00:00
parent ea4c7120ff
commit 0dc1654ab6
4 changed files with 112 additions and 70 deletions
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72
src/qt/dataobj.cpp
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@@ -12,11 +12,8 @@
#pragma hdrstop
#endif
#include "wx/qt/private/converter.h"
#include "wx/qt/private/utils.h"
#include "wx/dataobj.h"
#include <QtCore/QMimeData>
#include "wx/scopedarray.h"
namespace
{
@@ -118,64 +115,33 @@ bool wxDataFormat::operator!=(const wxDataFormat& format) const
wxDataObject::wxDataObject()
{
m_qtMimeData = new QMimeData;
}
wxDataObject::~wxDataObject()
{
delete m_qtMimeData;
}
bool wxDataObject::IsSupportedFormat(const wxDataFormat& format, Direction) const
bool wxDataObject::IsSupportedFormat(const wxDataFormat& format, Direction dir) const
{
return wxDataFormat(format) != wxDF_INVALID;
}
wxDataFormat wxDataObject::GetPreferredFormat(Direction) const
{
/* formats are in order of preference */
if (m_qtMimeData->formats().count())
return m_qtMimeData->formats().first();
return wxDataFormat();
}
size_t wxDataObject::GetFormatCount(Direction) const
{
return m_qtMimeData->formats().count();
}
void wxDataObject::GetAllFormats(wxDataFormat *formats, Direction) const
{
int i = 0;
foreach (QString format, m_qtMimeData->formats())
const size_t formatCount = GetFormatCount(dir);
if ( formatCount == 1 )
{
formats[i] = format;
i++;
return format == GetPreferredFormat();
}
wxScopedArray<wxDataFormat> formats(formatCount);
GetAllFormats(formats.get(), dir);
for ( size_t n = 0; n < formatCount; ++n )
{
if ( formats[n] == format )
return true;
}
return false;
}
size_t wxDataObject::GetDataSize(const wxDataFormat& format) const
{
return m_qtMimeData->data( wxQtConvertString(format.m_MimeType) ).count();
}
bool wxDataObject::GetDataHere(const wxDataFormat& format, void *buf) const
{
if (!m_qtMimeData->hasFormat(wxQtConvertString(format.m_MimeType)))
return false;
QByteArray data = m_qtMimeData->data( wxQtConvertString(format.m_MimeType) ).data();
memcpy(buf, data.constData(), data.size());
return true;
}
bool wxDataObject::SetData(const wxDataFormat& format, size_t len, const void * buf)
{
QByteArray bytearray((const char*)buf, len);
m_qtMimeData->setData(wxQtConvertString(format.m_MimeType), bytearray);
return true;
}
//#############################################################################
wxBitmapDataObject::wxBitmapDataObject()
{
@@ -185,6 +151,8 @@ wxBitmapDataObject::wxBitmapDataObject( const wxBitmap &WXUNUSED(bitmap) )
{
}
//#############################################################################
wxFileDataObject::wxFileDataObject()
{
}
@@ -193,3 +161,5 @@ void wxFileDataObject::AddFile( const wxString &WXUNUSED(filename) )
{
}