/*
- Copyright (C) 2000-2007 Paul Davis
+ Copyright (C) 2000-2007 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include <gtkmm/treeselection.h>
#include <gtkmm/selectiondata.h>
+#include "gtkmm2ext/visibility.h"
+
namespace Gtkmm2ext {
template<class DataType>
-struct SerializedObjectPointers {
+struct /*LIBGTKMM2EXT_API*/ SerializedObjectPointers {
uint32_t size;
uint32_t cnt;
char type[32];
DataType data[0];
};
-class DnDTreeViewBase : public Gtk::TreeView
+class LIBGTKMM2EXT_API DnDTreeViewBase : public Gtk::TreeView
{
private:
public:
void add_drop_targets (std::list<Gtk::TargetEntry>&);
void add_object_drag (int column, std::string type_name);
+
+ void on_drag_begin (Glib::RefPtr<Gdk::DragContext> const & context) {
+ Gtk::TreeView::on_drag_begin (context);
+ start_object_drag ();
+ }
void on_drag_leave(const Glib::RefPtr<Gdk::DragContext>& context, guint time) {
suggested_action = context->get_suggested_action();
std::string object_type;
struct DragData {
+ DragData () : source (0) {}
+
Gtk::TreeView* source;
int data_column;
std::string object_type;
};
template<class DataType>
-class DnDTreeView : public DnDTreeViewBase
+class /*LIBGTKMM2EXT_API*/ DnDTreeView : public DnDTreeViewBase
{
public:
- DnDTreeView() {}
+ DnDTreeView() {}
~DnDTreeView() {}
- sigc::signal<void,const std::list<DataType>& > signal_drop;
+ sigc::signal<void,const std::list<DataType>&,Gtk::TreeView*,int,int,Glib::RefPtr<Gdk::DragContext>&> signal_drop;
void on_drag_data_get(const Glib::RefPtr<Gdk::DragContext>& context, Gtk::SelectionData& selection_data, guint info, guint time) {
if (selection_data.get_target() == "GTK_TREE_MODEL_ROW") {
} else if (selection_data.get_target() == object_type) {
- start_object_drag ();
-
/* we don't care about the data passed around by DnD, but
we have to provide something otherwise it will stop.
*/
} else if (selection_data.get_target() == object_type) {
- end_object_drag ();
+ end_object_drag (const_cast<Glib::RefPtr<Gdk::DragContext>& > (context), x, y);
} else {
/* some kind of target type added by the app, which will be handled by a signal handler */
}
/**
- * this can be called by the Treeview itself or by some other
+ * This can be called by the Treeview itself or by some other
* object that wants to get the list of dragged items.
*/
- void get_object_drag_data (std::list<DataType>& l) {
+ void get_object_drag_data (std::list<DataType>& l, Gtk::TreeView** source) {
+
+ if (drag_data.source == 0) {
+ return;
+ }
+
Glib::RefPtr<Gtk::TreeModel> model = drag_data.source->get_model();
DataType v;
Gtk::TreeSelection::ListHandle_Path selection = drag_data.source->get_selection()->get_selected_rows ();
model->get_iter (*x)->get_value (drag_data.data_column, v);
l.push_back (v);
}
+
+ *source = drag_data.source;
}
private:
- void end_object_drag () {
+ void end_object_drag (Glib::RefPtr<Gdk::DragContext>& context, int x, int y) {
std::list<DataType> l;
- get_object_drag_data (l);
- signal_drop (l);
+ Gtk::TreeView* source;
+ get_object_drag_data (l, &source);
+ signal_drop (l, source, x, y, context);
}
};
} // namespace
-
+
#endif /* __gtkmm2ext_dndtreeview_h__ */