1 files changed, 113 insertions, 0 deletions
diff --git a/wx+/file_drop.h b/wx+/file_drop.h
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+++ b/wx+/file_drop.h
@@ -0,0 +1,113 @@
+// **************************************************************************
+// * 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. setup a window to 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