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Pass through DnDTV signal_drag_motion event

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This commit is contained in:
Robin Gareus 2020-06-25 02:24:02 +02:00
parent 2f1ab39b9c
commit 85034d0bca
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
2 changed files with 31 additions and 5 deletions
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11
libs/gtkmm2ext/dndtreeview.cc
View File

@ -141,3 +141,14 @@ DnDTreeViewBase::on_drag_drop(const Glib::RefPtr<Gdk::DragContext>& context, int
drag_data.source = 0;
return TreeView::on_drag_drop (context, x, y, time);
}
bool
DnDTreeViewBase::on_drag_motion(const Glib::RefPtr<Gdk::DragContext>& context, int x, int y, guint time)
{
bool rv = TreeView::on_drag_motion (context, x, y, time);
if (rv) {
rv = signal_motion (context, x, y, time);
}
suggested_action = context->get_suggested_action();
return rv;
}

25
libs/gtkmm2ext/gtkmm2ext/dndtreeview.h
View File

@ -46,6 +46,25 @@ class LIBGTKMM2EXT_API DnDTreeViewBase : public Gtk::TreeView
DnDTreeViewBase ();
~DnDTreeViewBase() {}
struct BoolAccumulator {
typedef bool result_type;
template <class U>
result_type operator () (U first, U last) {
while (first != last) {
if (!*first) {
/* break on first slot that returns false */
return false;
}
++first;
}
/* no connected slots -> return true */
return true;
}
};
sigc::signal4<bool, const Glib::RefPtr<Gdk::DragContext>&, int, int, guint, BoolAccumulator> signal_motion;
void add_drop_targets (std::list<Gtk::TargetEntry>&);
void add_object_drag (int column, std::string type_name);
@ -59,15 +78,11 @@ class LIBGTKMM2EXT_API DnDTreeViewBase : public Gtk::TreeView
}
void on_drag_leave(const Glib::RefPtr<Gdk::DragContext>& context, guint time) {
suggested_action = context->get_suggested_action();
TreeView::on_drag_leave (context, time);
}
bool on_drag_motion(const Glib::RefPtr<Gdk::DragContext>& context, int x, int y, guint time) {
suggested_action = context->get_suggested_action();
return TreeView::on_drag_motion (context, x, y, time);
}
bool on_drag_motion(const Glib::RefPtr<Gdk::DragContext>& context, int x, int y, guint time);
bool on_drag_drop(const Glib::RefPtr<Gdk::DragContext>& context, int x, int y, guint time);
void set_drag_column (int c) {