diff options
Diffstat (limited to 'libs/gtkmm2ext/gtkmm2ext/dndvbox.h')
| -rw-r--r-- | libs/gtkmm2ext/gtkmm2ext/dndvbox.h | 86 |
1 files changed, 43 insertions, 43 deletions
diff --git a/libs/gtkmm2ext/gtkmm2ext/dndvbox.h b/libs/gtkmm2ext/gtkmm2ext/dndvbox.h index 940a72859e..84289aff34 100644 --- a/libs/gtkmm2ext/gtkmm2ext/dndvbox.h +++ b/libs/gtkmm2ext/gtkmm2ext/dndvbox.h @@ -24,15 +24,15 @@ namespace Gtkmm2ext { -/** Parent class for children of a DnDVBox */ +/** Parent class for children of a DnDVBox */ class /*LIBGTKMM2EXT_API*/ DnDVBoxChild { public: virtual ~DnDVBoxChild () {} - + /** @return The widget that is to be put into the DnDVBox */ virtual Gtk::Widget& widget () = 0; - + /** @return An EventBox containing the widget that should be used for selection, dragging etc. */ virtual Gtk::EventBox& action_widget () = 0; @@ -68,15 +68,15 @@ public: signal_drag_leave().connect (mem_fun (*this, &DnDVBox::drag_leave)); _internal_vbox.show (); - + drag_dest_set (_targets); signal_drag_data_received().connect (mem_fun (*this, &DnDVBox::drag_data_received)); } - + virtual ~DnDVBox () { clear (); - + delete _drag_icon; } @@ -89,9 +89,9 @@ public: child->action_widget().signal_drag_end().connect (sigc::bind (mem_fun (*this, &DnDVBox::drag_end), child)); child->action_widget().signal_button_press_event().connect (sigc::bind (mem_fun (*this, &DnDVBox::button_press), child)); child->action_widget().signal_button_release_event().connect (sigc::bind (mem_fun (*this, &DnDVBox::button_release), child)); - + _internal_vbox.pack_start (child->widget(), false, false); - + _children.push_back (child); child->widget().show (); } @@ -180,7 +180,7 @@ public: T* after; std::pair<T*, double> r; - + r.second = get_children_around_position (y, &before, &r.first, &after); return r; @@ -206,7 +206,7 @@ public: { return create_or_update_placeholder (get_child_at_position (y).second); } - + /** Children have been reordered by a drag */ sigc::signal<void> Reordered; @@ -241,7 +241,7 @@ private: return bottom; } - + /** Look at a y coordinate and find the children below y, and the ones either side. * @param y y position. * @param before Filled in with the child before, or 0. @@ -270,7 +270,7 @@ private: while (y >= bottom && j != _children.end()) { top = bottom; - + *before = *j; ++i; ++j; @@ -297,13 +297,13 @@ private: void drag_begin (Glib::RefPtr<Gdk::DragContext> const & context, T* child) { _drag_child = child; - + /* make up an icon for the drag */ _drag_icon = new Gtk::Window (Gtk::WINDOW_POPUP); - + Gtk::Allocation a = child->action_widget().get_allocation (); _drag_icon->set_size_request (a.get_width(), a.get_height()); - + _drag_icon->signal_expose_event().connect (sigc::mem_fun (*this, &DnDVBox::icon_expose)); _drag_icon->set_name (get_name ()); @@ -317,7 +317,7 @@ private: int w, h; _drag_icon->get_size (w, h); _drag_icon->drag_set_as_icon (context, w / 2, h / 2); - + _drag_source = this; } @@ -336,22 +336,22 @@ private: cairo_rectangle (cr, 0, 0, w, h); cairo_fill (cr); cairo_destroy (cr); - + return false; } - + void drag_data_get (Glib::RefPtr<Gdk::DragContext> const &, Gtk::SelectionData & selection_data, guint, guint, T* child) { selection_data.set (selection_data.get_target(), 8, (const guchar *) &child, sizeof (&child)); } - + void drag_data_received ( Glib::RefPtr<Gdk::DragContext> const & context, int /*x*/, int y, Gtk::SelectionData const & selection_data, guint /*info*/, guint time ) { /* work out where it was dropped */ std::pair<T*, double> const drop = get_child_at_position (y); - + if (_drag_source == this) { /* dropped from ourselves onto ourselves */ @@ -364,7 +364,7 @@ private: /* where in the list this child should be dropped */ int target = drop.second + 0.5; - + /* find out whether the child was `picked up' from before the drop position */ int n = 0; typename std::list<T*>::const_iterator i = _children.begin (); @@ -372,31 +372,31 @@ private: ++i; ++n; } - + /* if so, adjust the drop position to account for this */ if (n < target) { --target; } - + _internal_vbox.reorder_child (child->widget(), target); } - + } else { - + /* drag started in another DnDVBox; raise a signal to say what happened */ - + std::list<T*> dropped = _drag_source->selection (); DropFromAnotherBox (_drag_source, drop.first, context); } - + context->drag_finish (false, false, time); } - + void drag_end (Glib::RefPtr<Gdk::DragContext> const &, T *) { delete _drag_icon; _drag_icon = 0; - + _drag_child = 0; remove_placeholder (); @@ -474,7 +474,7 @@ private: if (child) { _expecting_unwanted_button_event = true; } - + if (ev->button == 1 || ev->button == 3) { if (!selected (child)) { @@ -492,7 +492,7 @@ private: if (selecting && !was_selected) { add_to_selection (*i); } - + if (!selecting && !done) { if (selected (*i)) { selecting = true; @@ -509,19 +509,19 @@ private: } } else { - + if ((ev->state & Gdk::CONTROL_MASK) == 0) { clear_selection (); } - + if (child) { add_to_selection (child); } } - + SelectionChanged (); /* EMIT SIGNAL */ - + } else { /* XXX THIS NEEDS GENERALIZING FOR OS X */ if (ev->button == 1 && (ev->state & Gdk::CONTROL_MASK)) { @@ -535,7 +535,7 @@ private: return ButtonPress (ev, child); /* EMIT SIGNAL */ } - + bool button_release (GdkEventButton* ev, T* child) { if (_expecting_unwanted_button_event == true && child == 0) { @@ -565,7 +565,7 @@ private: setup_child_state (*i); } } - + void add_to_selection (T* child) { if ( !child->is_selectable() ) @@ -583,21 +583,21 @@ private: setup_child_state (c); } } - + T* child_from_widget (Gtk::Widget const * w) const { typename std::list<T*>::const_iterator i = _children.begin(); while (i != _children.end() && &(*i)->widget() != w) { ++i; } - + if (i == _children.end()) { return 0; } return *i; } - + Gtk::VBox _internal_vbox; std::list<Gtk::TargetEntry> _targets; std::list<T*> _children; @@ -611,12 +611,12 @@ private: Gtk::Label* _placeholder; /** Our child being dragged, or 0 */ T* _drag_child; - + static DnDVBox* _drag_source; - + }; template <class T> DnDVBox<T>* DnDVBox<T>::_drag_source = 0; - + } |