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Highlight Drop Trigger Slot

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This commit is contained in:
Robin Gareus 2021-12-14 00:45:16 +01:00
parent 5f810843bb
commit fde1b3d27e
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
2 changed files with 56 additions and 3 deletions
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55
gtk2_ardour/triggerbox_ui.cc
View File

@ -330,6 +330,8 @@ TriggerBoxUI::TriggerBoxUI (ArdourCanvas::Item* parent, TriggerBox& tb)
GtkCanvas* gtkcanvas = static_cast<GtkCanvas*> (canvas());
assert (gtkcanvas);
gtkcanvas->drag_dest_set (target_table);
gtkcanvas->signal_drag_motion().connect (sigc::mem_fun(*this, &TriggerBoxUI::drag_motion));
gtkcanvas->signal_drag_leave().connect (sigc::mem_fun(*this, &TriggerBoxUI::drag_leave));
gtkcanvas->signal_drag_data_received().connect (sigc::mem_fun(*this, &TriggerBoxUI::drag_data_received));
}
@ -744,17 +746,64 @@ TriggerBoxUI::sample_chosen (int response, uint64_t n)
}
}
void
TriggerBoxUI::drag_data_received (Glib::RefPtr<Gdk::DragContext> const& context, int /*x*/, int y, Gtk::SelectionData const& data, guint /*info*/, guint time)
uint64_t
TriggerBoxUI::slot_at_y (int y) const
{
uint64_t n = 0; // TODO pick slot depending in Y coordinate
uint64_t n = 0;
for (auto& slot : _slots) {
if (slot->height () < y) {
++n;
y -= slot->height ();
}
}
return n;
}
bool
TriggerBoxUI::drag_motion (Glib::RefPtr<Gdk::DragContext>const& context, int, int y, guint time)
{
bool can_drop = true;
uint64_t n = slot_at_y (y);
if (n >= _slots.size ()) {
assert (0);
can_drop = false;
}
if (can_drop) {
context->drag_status(Gdk::ACTION_COPY, time);
/* prelight */
GdkEventCrossing ev;
ev.detail = GDK_NOTIFY_ANCESTOR;
for (size_t i = 0; i < _slots.size (); ++i) {
ev.type = (i == n) ? GDK_ENTER_NOTIFY : GDK_LEAVE_NOTIFY;
text_button_event ((GdkEvent*)&ev, i);
}
return true;
} else {
context->drag_status (Gdk::DragAction (0), time);
return false;
}
}
void
TriggerBoxUI::drag_leave (Glib::RefPtr<Gdk::DragContext>const&, guint)
{
GdkEventCrossing ev;
ev.type = GDK_LEAVE_NOTIFY;
ev.detail = GDK_NOTIFY_ANCESTOR;
for (size_t i = 0; i < _slots.size (); ++i) {
text_button_event ((GdkEvent*)&ev, i);
}
}
void
TriggerBoxUI::drag_data_received (Glib::RefPtr<Gdk::DragContext> const& context, int /*x*/, int y, Gtk::SelectionData const& data, guint /*info*/, guint time)
{
uint64_t n = slot_at_y (y);
if (n >= _slots.size ()) {
context->drag_finish (false, false, time);
return;
}
if (data.get_target() == X_("regions")) {
#if 0
/* TODO -- get access to Editor::_regions */

4
gtk2_ardour/triggerbox_ui.h
View File

@ -131,8 +131,12 @@ private:
void selection_changed ();
bool drag_motion (Glib::RefPtr<Gdk::DragContext>const&, int, int, guint);
void drag_leave (Glib::RefPtr<Gdk::DragContext>const&, guint);
void drag_data_received (Glib::RefPtr<Gdk::DragContext> const&, int, int, Gtk::SelectionData const&, guint, guint);
uint64_t slot_at_y (int) const;
sigc::connection update_connection;
sigc::connection selection_connection;
};