initial commit

Signed-off-by: Peter Siegmund <mars3142@noreply.mars3142.dev>

libs/wxWidgets-3.3.1/include/wx/gtk/dnd.h

@@ -0,0 +1,121 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        wx/gtk/dnd.h
+// Purpose:     declaration of the wxDropTarget class
+// Author:      Robert Roebling
+// Copyright:   (c) 1998 Vadim Zeitlin, Robert Roebling
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_GTK_DND_H_
+#define _WX_GTK_DND_H_
+
+#include "wx/icon.h"
+
+// ----------------------------------------------------------------------------
+// macros
+// ----------------------------------------------------------------------------
+
+// this macro may be used instead for wxDropSource ctor arguments: it will use
+// the icon 'name' from an XPM file under GTK, but will expand to something
+// else under MSW. If you don't use it, you will have to use #ifdef in the
+// application code.
+#define wxDROP_ICON(name)   wxICON(name)
+
+//-------------------------------------------------------------------------
+// wxDropTarget
+//-------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxDropTarget: public wxDropTargetBase
+{
+public:
+    wxDropTarget(wxDataObject *dataObject = nullptr );
+
+    virtual wxDragResult OnDragOver(wxCoord x, wxCoord y, wxDragResult def) override;
+    virtual bool OnDrop(wxCoord x, wxCoord y) override;
+    virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult def) override;
+    virtual bool GetData() override;
+
+    // Can only be called during OnXXX methods.
+    wxDataFormat GetMatchingPair();
+
+    // implementation
+
+    GdkAtom GTKGetMatchingPair(bool quiet = false);
+    wxDragResult GTKFigureOutSuggestedAction();
+
+    void GtkRegisterWidget( GtkWidget *widget );
+    void GtkUnregisterWidget( GtkWidget *widget );
+
+    GdkDragContext     *m_dragContext;
+    GtkWidget          *m_dragWidget;
+    GtkSelectionData   *m_dragData;
+    unsigned            m_dragTime;
+    bool                m_firstMotion;     // gdk has no "gdk_drag_enter" event
+
+    void GTKSetDragContext( GdkDragContext *dc ) { m_dragContext = dc; }
+    void GTKSetDragWidget( GtkWidget *w ) { m_dragWidget = w; }
+    void GTKSetDragData( GtkSelectionData *sd ) { m_dragData = sd; }
+    void GTKSetDragTime(unsigned time) { m_dragTime = time; }
+};
+
+//-------------------------------------------------------------------------
+// wxDropSource
+//-------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxDropSource: public wxDropSourceBase
+{
+public:
+    // constructor. set data later with SetData()
+    wxDropSource( wxWindow *win = nullptr,
+                  const wxIcon &copy = wxNullIcon,
+                  const wxIcon &move = wxNullIcon,
+                  const wxIcon &none = wxNullIcon);
+
+    // constructor for setting one data object
+    wxDropSource( wxDataObject& data,
+                  wxWindow *win,
+                  const wxIcon &copy = wxNullIcon,
+                  const wxIcon &move = wxNullIcon,
+                  const wxIcon &none = wxNullIcon);
+
+    virtual ~wxDropSource();
+
+    // set the icon corresponding to given drag result
+    void SetIcon(wxDragResult res, const wxIcon& icon)
+    {
+        if ( res == wxDragCopy )
+            m_iconCopy = icon;
+        else if ( res == wxDragMove )
+            m_iconMove = icon;
+        else
+            m_iconNone = icon;
+    }
+
+    // start drag action
+    virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly) override;
+
+    // implementation
+
+    GdkDragContext* m_dragContext;
+    wxDragResult m_retValue;
+    bool m_waiting;
+
+private:
+    void PrepareIcon( int action, GdkDragContext *context );
+
+    GtkWidget       *m_widget;
+    GtkWidget       *m_iconWindow;
+    wxIcon           m_iconCopy,
+                     m_iconMove,
+                     m_iconNone;
+
+    void Init(wxWindow* win);
+
+    // GTK implementation
+    void GTKConnectDragSignals();
+    void GTKDisconnectDragSignals();
+
+};
+
+#endif // _WX_GTK_DND_H_
+