diff options
| -rw-r--r-- | dw/fltkui.cc | 49 |
1 files changed, 46 insertions, 3 deletions
diff --git a/dw/fltkui.cc b/dw/fltkui.cc index 7d2f6cc5..5e4f3c56 100644 --- a/dw/fltkui.cc +++ b/dw/fltkui.cc @@ -75,6 +75,49 @@ int CustInput2::handle(int e) return Fl_Input::handle(e); } + +/* + * Used to handle some keystrokes as shortcuts to option menuitems + * (i.e. jump to the next menuitem whose label starts with the pressed key) + */ +class CustChoice : public Fl_Choice { +public: + CustChoice (int x, int y, int w, int h, const char* l=0) : + Fl_Choice(x,y,w,h,l) {}; + int handle(int e); +}; + +int CustChoice::handle(int e) +{ + int k = Fl::event_key(); + unsigned modifier = Fl::event_state() & (FL_SHIFT|FL_CTRL|FL_ALT|FL_META); + + _MSG("CustChoice::handle %p e=%d active=%d focus=%d\n", + this, e, active(), (Fl::focus() == this)); + if (Fl::focus() != this) { + ; // Not Focused, let FLTK handle it + } else if (e == FL_KEYDOWN) { + if (modifier == 0 && isalnum(k)) { + int t = value()+1 >= size() ? 0 : value()+1; + while (t != value()) { + const Fl_Menu_Item *mi = &(menu()[t]); + if (mi->submenu()) // submenu? + ; + else if (mi->label() && mi->active()) { // menu item? + if (k == tolower(mi->label()[0])) { + value(mi); + return 1; // Let FLTK know we used this key + } + } + if (++t == size()) + t = 0; + } + } + } + + return Fl_Choice::handle(e); +} + //---------------------------------------------------------------------------- namespace dw { @@ -995,9 +1038,9 @@ Fl_Widget *FltkOptionMenuResource::createNewWidget (core::Allocation *allocation) { Fl_Choice *choice = - new Fl_Choice (allocation->x, allocation->y, - allocation->width, - allocation->ascent + allocation->descent); + new CustChoice (allocation->x, allocation->y, + allocation->width, + allocation->ascent + allocation->descent); choice->menu(menu); return choice; } |