Fl_Menu_Button.cxx

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//
// "$Id: Fl_Menu_Button.cxx 7903 2010-11-28 21:06:39Z matt $"
//
// Menu button widget for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2010 by Bill Spitzak and others.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems on the following page:
//
//     http://www.fltk.org/str.php
//

#include <FL/Fl.H>
#include <FL/Fl_Menu_Button.H>
#include <FL/fl_draw.H>


static Fl_Menu_Button   *pressed_menu_button_ = 0;

void Fl_Menu_Button::draw() {
  if (!box() || type()) return;
  draw_box(pressed_menu_button_ == this ? fl_down(box()) : box(), color());
  draw_label();
  if (Fl::focus() == this) draw_focus();
  // ** if (box() == FL_FLAT_BOX) return; // for XForms compatibility
  int H = (labelsize()-3)&-2;
  int X = x()+w()-H*2;
  int Y = y()+(h()-H)/2;
  fl_color(active_r() ? FL_DARK3 : fl_inactive(FL_DARK3));
  fl_line(X+H/2, Y+H, X, Y, X+H, Y);
  fl_color(active_r() ? FL_LIGHT3 : fl_inactive(FL_LIGHT3));
  fl_line(X+H, Y, X+H/2, Y+H);
}

const Fl_Menu_Item* Fl_Menu_Button::popup() {
  const Fl_Menu_Item* m;
  pressed_menu_button_ = this;
  redraw();
  Fl_Widget_Tracker mb(this);
  if (!box() || type()) {
    m = menu()->popup(Fl::event_x(), Fl::event_y(), label(), mvalue(), this);
  } else {
    m = menu()->pulldown(x(), y(), w(), h(), 0, this);
  }
  picked(m);
  pressed_menu_button_ = 0;
  if (mb.exists()) redraw();
  return m;
}

int Fl_Menu_Button::handle(int e) {
  if (!menu() || !menu()->text) return 0;
  switch (e) {
  case FL_ENTER: /* FALLTHROUGH */
  case FL_LEAVE:
    return (box() && !type()) ? 1 : 0;
  case FL_PUSH:
    if (!box()) {
      if (Fl::event_button() != 3) return 0;
    } else if (type()) {
      if (!(type() & (1 << (Fl::event_button()-1)))) return 0;
    }
    if (Fl::visible_focus()) Fl::focus(this);
    popup();
    return 1;
  case FL_KEYBOARD:
    if (!box()) return 0;
    if (Fl::event_key() == ' ' &&
        !(Fl::event_state() & (FL_SHIFT | FL_CTRL | FL_ALT | FL_META))) {
      popup();
      return 1;
    } else return 0;
  case FL_SHORTCUT:
    if (Fl_Widget::test_shortcut()) {popup(); return 1;}
    return test_shortcut() != 0;
  case FL_FOCUS: /* FALLTHROUGH */
  case FL_UNFOCUS:
    if (box() && Fl::visible_focus()) {
      redraw();
      return 1;
    }
  default:
    return 0;
  }
}

Fl_Menu_Button::Fl_Menu_Button(int X,int Y,int W,int H,const char *l)
: Fl_Menu_(X,Y,W,H,l) {
  down_box(FL_NO_BOX);
}

//
// End of "$Id: Fl_Menu_Button.cxx 7903 2010-11-28 21:06:39Z matt $".
//