lyx_mirror/src/frontends/xforms/Menubar_pimpl.C
Angus Leeming 87f2e96269 Whitespace only
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@6228 a592a061-630c-0410-9148-cb99ea01b6c8
2003-02-21 15:36:29 +00:00

398 lines
9.7 KiB
C

/**
* \file xforms/Menubar_pimpl.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Lars Gullik Bjønnes
* \author Jean-Marc Lasgouttes
*
* Full author contact details are available in file CREDITS
*/
#include <config.h>
#include "Menubar_pimpl.h"
#include "MenuBackend.h"
#include "XFormsView.h"
#include "lyxfunc.h"
#include "support/lstrings.h"
#include "support/LAssert.h"
#include "gettext.h"
#include "debug.h"
#include FORMS_H_LOCATION
//#include <boost/scoped_ptr.hpp>
#include <algorithm>
using std::endl;
using std::vector;
using std::max;
using std::min;
using std::for_each;
typedef vector<int>::size_type size_type;
namespace {
// Some constants
int const MENU_LABEL_SIZE = FL_NORMAL_SIZE;
int const MENU_LABEL_STYLE = FL_NORMAL_STYLE;
int const mheight = 30;
int const mbheight= 22;
// where to place the menubar?
int const yloc = (mheight - mbheight)/2; //air + bw;
int const mbadd = 20; // menu button add (to width)
// Some space between buttons on the menubar
int const air = 2;
char const * menu_tabstop = "aa";
char const * default_tabstop = "aaaaaaaa";
// We do not want to mix position values in a menu (like the index of
// a submenu) with the action numbers which convey actual information.
// Therefore we offset all the action values by an arbitrary large
// constant.
int const action_offset = 1000;
// This is used a few times below.
inline
int string_width(string const & str)
{
return fl_get_string_widthTAB(MENU_LABEL_STYLE, MENU_LABEL_SIZE,
str.c_str(),
static_cast<int>(str.length()));
}
} // namespace anon
extern "C" {
//Defined later, used in makeMenubar().
static
void C_Menubar_Pimpl_MenuCallback(FL_OBJECT * ob, long button)
{
Menubar::Pimpl::MenuCallback(ob, button);
}
}
Menubar::Pimpl::Pimpl(LyXView * view, MenuBackend const & mb)
: owner_(static_cast<XFormsView*>(view)), menubackend_(&mb)
{
makeMenubar(menubackend_->getMenubar());
}
Menubar::Pimpl::~Pimpl()
{}
void Menubar::Pimpl::makeMenubar(Menu const & menu)
{
FL_FORM * form = owner_->getForm();
int moffset = 0;
// Create menu frame if there is non yet.
FL_OBJECT * frame = fl_add_frame(FL_UP_FRAME, 0, 0,
form->w, mheight, "");
fl_set_object_resize(frame, FL_RESIZE_ALL);
fl_set_object_gravity(frame, NorthWestGravity,
NorthEastGravity);
Menu::const_iterator i = menu.begin();
Menu::const_iterator end = menu.end();
for (; i != end; ++i) {
FL_OBJECT * obj;
if (i->kind() != MenuItem::Submenu) {
lyxerr << "ERROR: Menubar::Pimpl::createMenubar:"
" only submenus can appear in a menubar"
<< endl;
continue;
}
string const label = i->label();
string const shortcut = '#' + i->shortcut();
int const width = string_width(label);
obj = fl_add_button(FL_MENU_BUTTON,
air + moffset, yloc,
width + mbadd,
mbheight,
label.c_str());
fl_set_object_boxtype(obj, FL_FLAT_BOX);
fl_set_object_color(obj, FL_MCOL, FL_MCOL);
fl_set_object_lsize(obj, MENU_LABEL_SIZE);
fl_set_object_lstyle(obj, MENU_LABEL_STYLE);
fl_set_object_resize(obj, FL_RESIZE_ALL);
fl_set_object_gravity(obj, NorthWestGravity,
NorthWestGravity);
moffset += obj->w + air;
fl_set_object_shortcut(obj, shortcut.c_str(), 1);
fl_set_object_callback(obj, C_Menubar_Pimpl_MenuCallback, 1);
boost::shared_ptr<ItemInfo>
iteminfo(new ItemInfo(this, new MenuItem(*i), obj));
buttonlist_.push_back(iteminfo);
obj->u_vdata = iteminfo.get();
}
}
void Menubar::Pimpl::update()
{
// nothing yet
}
void Menubar::Pimpl::openByName(string const & name)
{
for (ButtonList::const_iterator cit = buttonlist_.begin();
cit != buttonlist_.end(); ++cit) {
if ((*cit)->item_->submenuname() == name) {
MenuCallback((*cit)->obj_, 1);
return;
}
}
lyxerr << "Menubar::Pimpl::openByName: menu "
<< name << " not found" << endl;
}
namespace {
Menu::size_type const max_number_of_items = 25;
int get_new_submenu(vector<int> & smn, Window win)
{
static size_type max_number_of_menus = 32;
if (smn.size() >= max_number_of_menus)
max_number_of_menus =
fl_setpup_maxpup(static_cast<int>(2*smn.size()));
int menu = fl_newpup(win);
fl_setpup_softedge(menu, true);
fl_setpup_bw(menu, -1);
smn.push_back(menu);
return menu;
}
string const fixlabel(string const & str)
{
return subst(str, "%", "%%");
}
} // namespace anon
int Menubar::Pimpl::create_submenu(Window win, XFormsView * view,
Menu const & menu, vector<int> & smn)
{
const int menuid = get_new_submenu(smn, win);
lyxerr[Debug::GUI] << "Menubar::Pimpl::create_submenu: creating "
<< menu.name() << " as menuid=" << menuid << endl;
// Compute the size of the largest label (because xforms is
// not able to support shortcuts correctly...)
int max_width = 0;
string widest_label;
Menu::const_iterator end = menu.end();
for (Menu::const_iterator i = menu.begin(); i != end; ++i) {
MenuItem const & item = (*i);
if (item.kind() == MenuItem::Command) {
string const label = item.label() + '\t';
int const width = string_width(label);
if (width > max_width) {
max_width = width;
widest_label = label;
}
}
}
lyxerr[Debug::GUI] << "max_width=" << max_width
<< ", widest_label=\"" << widest_label
<< '"' << endl;
size_type count = 0;
int curmenuid = menuid;
for (Menu::const_iterator i = menu.begin(); i != end; ++i) {
MenuItem const & item = (*i);
++count;
// add a More... submenu if the menu is too long (but
// not just for one extra entry!)
if (count > max_number_of_items && (i+1) != end) {
int tmpmenuid = get_new_submenu(smn, win);
lyxerr[Debug::GUI] << "Too many items, creating "
<< "new menu " << tmpmenuid << endl;
string label = _("More");
label += "...%m";
fl_addtopup(curmenuid, label.c_str(), tmpmenuid);
count = 0;
curmenuid = tmpmenuid;
}
switch (item.kind()) {
case MenuItem::Command:
case MenuItem::Submenu:
{
// Build the menu label from all the info
string label = fixlabel(item.label());
FuncStatus const flag = item.status();
int submenuid;
// Is there a key binding?
string const binding = item.binding();
if (!binding.empty()) {
// Try to be clever and add just enough
// tabs to align shortcuts.
do
label += '\t';
while (string_width(label) < max_width + 5);
label += binding;
}
// Is there a separator after the item?
if ((i+1) != end
&& (i + 1)->kind() == MenuItem::Separator)
label += "%l";
// Modify the entry using the function status
if (flag.onoff(true))
label += "%B";
if (flag.onoff(false))
label += "%b";
if (flag.disabled())
label += "%i";
// Add the shortcut
string shortcut = item.shortcut();
if (!shortcut.empty()) {
shortcut += lowercase(shortcut[0]);
label += "%h";
}
// Finally add the action/submenu
if (item.kind() == MenuItem::Submenu) {
// create the submenu
submenuid =
create_submenu(win, view,
*item.submenu(), smn);
if (submenuid == -1)
return -1;
label += "%x" + tostr(smn.size());
lyxerr[Debug::GUI]
<< "Menu: " << submenuid
<< " (at index " << smn.size()
<< "), ";
} else {
// Add the action
label += "%x" + tostr(item.action()
+ action_offset);
lyxerr[Debug::GUI] << "Action: \""
<< item.action() << "\", ";
}
// Add everything to the menu
fl_addtopup(curmenuid, label.c_str(),
shortcut.c_str());
if (item.kind() == MenuItem::Submenu)
fl_setpup_submenu(curmenuid, smn.size(),
submenuid);
lyxerr[Debug::GUI] << "label \"" << label
<< "\", binding \"" << binding
<< "\", shortcut \"" << shortcut
<< "\" (added to menu "
<< curmenuid << ')' << endl;
break;
}
case MenuItem::Separator:
// already done, and if it was the first one,
// we just ignore it.
--count;
break;
default:
lyxerr << "Menubar::Pimpl::create_submenu: "
"this should not happen" << endl;
break;
}
}
return menuid;
}
void Menubar::Pimpl::MenuCallback(FL_OBJECT * ob, long button)
{
ItemInfo * iteminfo = static_cast<ItemInfo *>(ob->u_vdata);
XFormsView * view = iteminfo->pimpl_->owner_;
MenuItem const * item = iteminfo->item_.get();
if (button == 1) {
// set the pseudo menu-button
fl_set_object_boxtype(ob, FL_DOWN_BOX);
fl_set_button(ob, 0);
fl_redraw_object(ob);
}
// Paranoia check
lyx::Assert(item->kind() == MenuItem::Submenu);
// set tabstop length
fl_set_tabstop(menu_tabstop);
MenuBackend const * menubackend_ = iteminfo->pimpl_->menubackend_;
Menu tomenu;
Menu const frommenu = menubackend_->getMenu(item->submenuname());
menubackend_->expand(frommenu, tomenu, view);
vector<int> submenus;
int menu = iteminfo->pimpl_->create_submenu(FL_ObjWin(ob), view,
tomenu, submenus);
if (menu != -1) {
// place popup
fl_setpup_position(view->getForm()->x + ob->x,
view->getForm()->y + ob->y + ob->h + 10);
int choice = fl_dopup(menu);
if (button == 1) {
// set the pseudo menu-button back
fl_set_object_boxtype(ob, FL_FLAT_BOX);
fl_redraw_object(ob);
}
// If the action value is too low, then it is not a
// valid action, but something else.
if (choice >= action_offset + 1) {
view->getLyXFunc().dispatch(choice - action_offset, true);
} else {
lyxerr[Debug::GUI]
<< "MenuCallback: ignoring bogus action "
<< choice << endl;
}
} else {
lyxerr << "Error in MenuCallback" << endl;
}
for_each(submenus.begin(), submenus.end(), fl_freepup);
// restore tabstop length
fl_set_tabstop(default_tabstop);
}
Menubar::Pimpl::ItemInfo::ItemInfo
(Menubar::Pimpl * p, MenuItem const * i, FL_OBJECT * o)
: pimpl_(p), obj_(o)
{
item_.reset(i);
}
Menubar::Pimpl::ItemInfo::~ItemInfo()
{}