fltk/src/Fl_Sys_Menu_Bar.cxx
Manolo Gouy 5a8c6087b0 Added Fl_Sys_Menu_Bar::insert(), clear(), clear_submenu()
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@7518 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2010-04-16 19:27:28 +00:00

289 lines
8.5 KiB
C++

//
// "$Id$"
//
// MacOS system menu bar 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
//
/**
* This code is a quick hack! It was written as a proof of concept.
* It has been tested on the "menubar" sample program and provides
* basic functionality.
*
* To use the System Menu Bar, simply replace the main Fl_Menu_Bar
* in an application with Fl_Sys_Menu_Bar.
*
* FLTK features not supported by the Mac System menu
*
* - no invisible menu items
* - no symbolic labels
* - embossed labels will be underlined instead
* - no font sizes
* - Shortcut Characters should be English alphanumeric only, no modifiers yet
* - no disable main menus
* - changes to menubar in run-time don't update!
* (disable, etc. - toggle and radio button do!)
*
* No care was taken to clean up the menu bar after destruction!
* ::menu(bar) should only be called once!
* Many other calls of the parent class don't work.
* Changing the menu items has no effect on the menu bar.
* Starting with OS X 10.5, FLTK applications must be created as
* a bundle for the System Menu Bar (and maybe other features) to work!
*/
#if defined(__APPLE__) || defined(FL_DOXYGEN)
#include <FL/x.H>
#include <FL/Fl.H>
#include <FL/Fl_Sys_Menu_Bar.H>
#include "flstring.h"
#include <stdio.h>
#include <ctype.h>
#include <stdarg.h>
#define MenuHandle void *
typedef const Fl_Menu_Item *pFl_Menu_Item;
/*
* Set a shortcut for an Apple menu item using the FLTK shortcut descriptor.
*/
static void setMenuShortcut( MenuHandle mh, int miCnt, const Fl_Menu_Item *m )
{
if ( !m->shortcut_ )
return;
if ( m->flags & FL_SUBMENU )
return;
if ( m->flags & FL_SUBMENU_POINTER )
return;
char key = m->shortcut_ & 0xff;
if ( !isalnum( key ) )
return;
void *menuItem = Fl_Sys_Menu_Bar::doMenuOrItemOperation(Fl_Sys_Menu_Bar::itemAtIndex, mh, miCnt);
Fl_Sys_Menu_Bar::doMenuOrItemOperation(Fl_Sys_Menu_Bar::setKeyEquivalent, menuItem, m->shortcut_ & 0xff );
Fl_Sys_Menu_Bar::doMenuOrItemOperation(Fl_Sys_Menu_Bar::setKeyEquivalentModifierMask, menuItem, m->shortcut_ );
}
/*
* Set the Toggle and Radio flag based on FLTK flags
*/
static void setMenuFlags( MenuHandle mh, int miCnt, const Fl_Menu_Item *m )
{
if ( m->flags & FL_MENU_TOGGLE )
{
void *menuItem = Fl_Sys_Menu_Bar::doMenuOrItemOperation(Fl_Sys_Menu_Bar::itemAtIndex, mh, miCnt);
Fl_Sys_Menu_Bar::doMenuOrItemOperation(Fl_Sys_Menu_Bar::setState, menuItem, m->flags & FL_MENU_VALUE );
}
else if ( m->flags & FL_MENU_RADIO ) {
void *menuItem = Fl_Sys_Menu_Bar::doMenuOrItemOperation(Fl_Sys_Menu_Bar::itemAtIndex, mh, miCnt);
Fl_Sys_Menu_Bar::doMenuOrItemOperation(Fl_Sys_Menu_Bar::setState, menuItem, m->flags & FL_MENU_VALUE );
}
}
/*
* create a sub menu for a specific menu handle
*/
static void createSubMenu( void * mh, pFl_Menu_Item &mm )
{
void *submenu;
int miCnt, flags;
void *menuItem;
submenu = Fl_Sys_Menu_Bar::doMenuOrItemOperation(Fl_Sys_Menu_Bar::initWithTitle, mm->text);
int cnt;
Fl_Sys_Menu_Bar::doMenuOrItemOperation(Fl_Sys_Menu_Bar::numberOfItems, mh, &cnt);
cnt--;
menuItem = Fl_Sys_Menu_Bar::doMenuOrItemOperation(Fl_Sys_Menu_Bar::itemAtIndex, mh, cnt);
Fl_Sys_Menu_Bar::doMenuOrItemOperation(Fl_Sys_Menu_Bar::setSubmenu, menuItem, submenu);
if ( mm->flags & FL_MENU_INACTIVE ) {
Fl_Sys_Menu_Bar::doMenuOrItemOperation(Fl_Sys_Menu_Bar::setEnabled, menuItem, 0);
}
mm++;
while ( mm->text )
{
int flRank = mm - fl_sys_menu_bar->Fl_Menu_::menu();
Fl_Sys_Menu_Bar::doMenuOrItemOperation(Fl_Sys_Menu_Bar::addNewItem, submenu, flRank, &miCnt);
setMenuFlags( submenu, miCnt, mm );
setMenuShortcut( submenu, miCnt, mm );
if ( mm->flags & FL_MENU_INACTIVE ) {
void *item = Fl_Sys_Menu_Bar::doMenuOrItemOperation(Fl_Sys_Menu_Bar::itemAtIndex, submenu, miCnt);
Fl_Sys_Menu_Bar::doMenuOrItemOperation(Fl_Sys_Menu_Bar::setEnabled, item, 0);
}
flags = mm->flags;
if ( mm->flags & FL_SUBMENU )
{
createSubMenu( submenu, mm );
}
else if ( mm->flags & FL_SUBMENU_POINTER )
{
const Fl_Menu_Item *smm = (Fl_Menu_Item*)mm->user_data_;
createSubMenu( submenu, smm );
}
if ( flags & FL_MENU_DIVIDER ) {
Fl_Sys_Menu_Bar::doMenuOrItemOperation(Fl_Sys_Menu_Bar::addSeparatorItem, submenu);
}
mm++;
}
}
/*
* convert a complete Fl_Menu_Item array into a series of menus in the top menu bar
* ALL PREVIOUS SYSTEM MENUS, EXCEPT APPLICATION MENU, ARE REPLACED BY THE NEW DATA
*/
static void convertToMenuBar(const Fl_Menu_Item *mm)
{
int count;//first, delete all existing system menus
Fl_Sys_Menu_Bar::doMenuOrItemOperation(Fl_Sys_Menu_Bar::numberOfItems, fl_system_menu, &count);
for(int i = count - 1; i > 0; i--) {
Fl_Sys_Menu_Bar::doMenuOrItemOperation(Fl_Sys_Menu_Bar::removeItem, fl_system_menu, i);
}
//now convert FLTK stuff into MacOS menus
for (;;)
{
if ( !mm || !mm->text )
break;
char visible = mm->visible() ? 1 : 0;
int flRank = mm - fl_sys_menu_bar->Fl_Menu_::menu();
Fl_Sys_Menu_Bar::doMenuOrItemOperation(Fl_Sys_Menu_Bar::addNewItem, fl_system_menu, flRank, NULL);
if ( mm->flags & FL_SUBMENU )
createSubMenu( fl_system_menu, mm );
else if ( mm->flags & FL_SUBMENU_POINTER ) {
const Fl_Menu_Item *smm = (Fl_Menu_Item*)mm->user_data_;
createSubMenu( fl_system_menu, smm );
}
if ( visible ) {
// InsertMenu( mh, 0 );
}
mm++;
}
}
/**
* @brief create a system menu bar using the given list of menu structs
*
* \author Matthias Melcher
*
* @param m list of Fl_Menu_Item
*/
void Fl_Sys_Menu_Bar::menu(const Fl_Menu_Item *m)
{
fl_open_display();
Fl_Menu_Bar::menu( m );
convertToMenuBar(m);
}
/**
* @brief add to the system menu bar a new menu item
*
* add to the system menu bar a new menu item, with a title string, shortcut int,
* callback, argument to the callback, and flags.
*
* @see Fl_Menu_::add(const char* label, int shortcut, Fl_Callback *cb, void *user_data, int flags)
*/
int Fl_Sys_Menu_Bar::add(const char* label, int shortcut, Fl_Callback *cb, void *user_data, int flags)
{
fl_open_display();
int rank = Fl_Menu_::add(label, shortcut, cb, user_data, flags);
convertToMenuBar(Fl_Menu_::menu());
return rank;
}
/**
* @brief insert in the system menu bar a new menu item
*
* insert in the system menu bar a new menu item, with a title string, shortcut int,
* callback, argument to the callback, and flags.
*
* @see Fl_Menu_::insert(int index, const char* label, int shortcut, Fl_Callback *cb, void *user_data, int flags)
*/
int Fl_Sys_Menu_Bar::insert(int index, const char* label, int shortcut, Fl_Callback *cb, void *user_data, int flags)
{
fl_open_display();
int rank = Fl_Menu_::insert(index, label, shortcut, cb, user_data, flags);
convertToMenuBar(Fl_Menu_::menu());
return rank;
}
void Fl_Sys_Menu_Bar::clear()
{
Fl_Menu_::clear();
convertToMenuBar(NULL);
}
int Fl_Sys_Menu_Bar::clear_submenu(int index)
{
int retval = Fl_Menu_::clear_submenu(index);
if (retval != -1) convertToMenuBar(Fl_Menu_::menu());
return retval;
}
/**
* @brief remove an item from the system menu bar
*
* @param rank the rank of the item to remove
*/
void Fl_Sys_Menu_Bar::remove(int rank)
{
Fl_Menu_::remove(rank);
convertToMenuBar(Fl_Menu_::menu());
}
/**
* @brief rename an item from the system menu bar
*
* @param rank the rank of the item to rename
* @param name the new item name as a UTF8 string
*/
void Fl_Sys_Menu_Bar::replace(int rank, const char *name)
{
doMenuOrItemOperation(renameItem, rank, name);
fl_sys_menu_bar->Fl_Menu_::replace(rank, name);
}
/*
* Draw the menu bar.
* Nothing here because the OS does this for us.
*/
void Fl_Sys_Menu_Bar::draw() {
}
#endif /* __APPLE__ */
//
// End of "$Id$".
//