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// **************************************************************************
// * This file is part of the FreeFileSync project. It is distributed under *
// * GNU General Public License: http://www.gnu.org/licenses/gpl.html *
// * Copyright (C) 2008-2011 ZenJu (zhnmju123 AT gmx.de) *
// **************************************************************************
//
#ifndef FILE_DROP_H_INCLUDED
#define FILE_DROP_H_INCLUDED
#include <wx/event.h>
#include <wx/dnd.h>
namespace zen
{
//register simple file drop event (without issue of freezing dialogs and without wxFileDropTarget overdesign)
//1. have a window emit FFS_DROP_FILE_EVENT
void setupFileDrop(wxWindow& wnd);
//2. register events:
//wnd.Connect (FFS_DROP_FILE_EVENT, FFSFileDropEventHandler(MyDlg::OnFilesDropped), NULL, this);
//wnd.Disconnect(FFS_DROP_FILE_EVENT, FFSFileDropEventHandler(MyDlg::OnFilesDropped), NULL, this);
//3. do something:
//void MyDlg::OnFilesDropped(FFSFileDropEvent& event);
inline
wxEventType createNewEventType()
{
//inline functions have external linkage by default => this static is also extern, i.e. program wide unique! but defined in a header... ;)
static wxEventType dummy = wxNewEventType();
return dummy;
}
//define new event type
const wxEventType FFS_DROP_FILE_EVENT = createNewEventType();
class FFSFileDropEvent : public wxCommandEvent
{
public:
FFSFileDropEvent(const std::vector<wxString>& filesDropped, const wxWindow& dropWindow, wxPoint dropPos) :
wxCommandEvent(FFS_DROP_FILE_EVENT),
filesDropped_(filesDropped),
dropWindow_(dropWindow),
dropPos_(dropPos) {}
virtual wxEvent* Clone() const
{
return new FFSFileDropEvent(filesDropped_, dropWindow_, dropPos_);
}
const std::vector<wxString>& getFiles() const { return filesDropped_; }
const wxWindow& getDropWindow() const { return dropWindow_; }
wxPoint getDropPosition() const { return dropPos_; } //position relative to drop window
private:
const std::vector<wxString> filesDropped_;
const wxWindow& dropWindow_;
wxPoint dropPos_;
};
typedef void (wxEvtHandler::*FFSFileDropEventFunction)(FFSFileDropEvent&);
#define FFSFileDropEventHandler(func) \
(wxObjectEventFunction)(wxEventFunction)wxStaticCastEvent(FFSFileDropEventFunction, &func)
class WindowDropTarget : public wxFileDropTarget
{
public:
WindowDropTarget(wxWindow& dropWindow) : dropWindow_(dropWindow) {}
virtual bool OnDropFiles(wxCoord x, wxCoord y, const wxArrayString& fileArray)
{
std::vector<wxString> filenames(fileArray.begin(), fileArray.end());
if (!filenames.empty())
{
//create a custom event on drop window: execute event after file dropping is completed! (after mouse is released)
FFSFileDropEvent evt(filenames, dropWindow_, wxPoint(x, y));
dropWindow_.GetEventHandler()->AddPendingEvent(evt);
}
return true;
}
private:
wxWindow& dropWindow_;
};
inline
void setupFileDrop(wxWindow& wnd)
{
wnd.SetDropTarget(new WindowDropTarget(wnd)); //takes ownership
}
}
#endif // FILE_DROP_H_INCLUDED
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