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lyx_mirror/src/frontends/xforms/Menubar_pimpl.C
Angus Leeming a97c4f51c3 xforms clean-up, described in detail in my mail of 31 May. See 
http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg38939.html


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@4393 a592a061-630c-0410-9148-cb99ea01b6c8
2002-06-13 13:43:51 +00:00

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/**
* \file Menubar_pimpl.C
* Copyright 1999-2001 The LyX Team.
* See the file COPYING.
*
* \author Lars Gullik Bjønnes, larsbj@lyx.org
*/
#include <config.h>
#ifdef __GNUG__
#pragma implementation
#endif
#include "Menubar_pimpl.h"
#include "MenuBackend.h"
#include "LyXAction.h"
#include "kbmap.h"
#include "buffer.h"
#include "Dialogs.h"
#include "XFormsView.h"
#include "lyxfunc.h"
#include "FloatList.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;
extern boost::scoped_ptr<kb_keymap> toplevel_keymap;
extern LyXAction lyxaction;
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_(view), menubackend_(&mb), current_group_(0)
{
for (MenuBackend::const_iterator menu = menubackend_->begin();
menu != menubackend_->end() ; ++menu) {
if (menu->menubar()) {
FL_OBJECT * group = fl_bgn_group();
makeMenubar(*menu);
fl_end_group();
fl_hide_object(group);
lyxerr[Debug::GUI]
<< "Menubar::Pimpl::Pimpl: "
<< "creating and hiding group " << group
<< " for menubar " << menu->name() << endl;
menubarmap_[menu->name()] = group;
}
}
}
void Menubar::Pimpl::makeMenubar(Menu const & menu)
{
FL_FORM * form = static_cast<XFormsView *>(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::set(string const & menu_name)
{
if (menu_name == current_menu_name_)
return;
MenubarMap::iterator mbit = menubarmap_.find(menu_name);
if (mbit == menubarmap_.end()) {
lyxerr << "ERROR:set: Unknown menu `" << menu_name
<< "'" << endl;
return;
}
if (current_group_) {
lyxerr[Debug::GUI] << " hiding group "
<< current_group_ << endl;
fl_hide_object(current_group_);
}
lyxerr[Debug::GUI] << " showing group "
<< mbit->second << endl;
fl_show_object(mbit->second);
current_menu_name_ = menu_name;
current_group_ = mbit->second;
lyxerr[Debug::GUI] << "Menubar::Pimpl::set: Menubar set."
<< endl;
}
void Menubar::Pimpl::openByName(string const & name)
{
if (menubackend_->getMenu(current_menu_name_).hasSubmenu(name)) {
for (ButtonList::const_iterator cit = buttonlist_.begin();
cit != buttonlist_.end(); ++cit) {
if ((*cit)->item_->submenu() == name) {
MenuCallback((*cit)->obj_, 1);
return;
}
}
}
lyxerr << "Menubar::Pimpl::openByName: menu "
<< name << " not found" << endl;
}
namespace {
inline
string const limit_string_length(string const & str)
{
string::size_type const max_item_length = 45;
if (str.size() > max_item_length)
return str.substr(0, max_item_length - 3) + "...";
else
return str;
}
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);
smn.push_back(menu);
return menu;
}
size_type const max_number_of_items = 25;
inline
string const fixlabel(string const & str)
{
#if FL_VERSION < 1 && FL_REVISION < 89
return subst(str, '%', '?');
#else
return subst(str, "%", "%%");
#endif
}
void add_toc2(int menu, string const & extra_label,
vector<int> & smn, Window win,
vector<Buffer::TocItem> const & toc_list,
size_type from, size_type to, int depth)
{
int shortcut_count = 0;
if (to - from <= max_number_of_items) {
for (size_type i = from; i < to; ++i) {
int const action = lyxaction.
getPseudoAction(LFUN_GOTO_PARAGRAPH,
tostr(toc_list[i].par->id()));
string label(4 * max(0, toc_list[i].depth - depth),' ');
label += fixlabel(toc_list[i].str);
label = limit_string_length(label);
label += "%x" + tostr(action + action_offset);
if (i == to - 1 && depth == 0)
label += extra_label;
if (toc_list[i].depth == depth
&& ++shortcut_count <= 9) {
label += "%h";
fl_addtopup(menu, label.c_str(),
tostr(shortcut_count).c_str());
} else
fl_addtopup(menu, label.c_str());
}
} else {
size_type pos = from;
size_type count = 0;
while (pos < to) {
++count;
if (count > max_number_of_items) {
int menu2 = get_new_submenu(smn, win);
add_toc2(menu2, extra_label, smn, win,
toc_list, pos, to, depth);
string label = _("More");
label += "...%m";
if (depth == 0)
label += extra_label;
fl_addtopup(menu, label.c_str(), menu2);
break;
}
size_type new_pos = pos+1;
while (new_pos < to &&
toc_list[new_pos].depth > depth)
++new_pos;
int const action = lyxaction.
getPseudoAction(LFUN_GOTO_PARAGRAPH,
tostr(toc_list[pos].par->id()));
string label(4 * max(0, toc_list[pos].depth - depth), ' ');
label += fixlabel(toc_list[pos].str);
label = limit_string_length(label);
if (new_pos == to && depth == 0)
label += extra_label;
string shortcut;
if (toc_list[pos].depth == depth &&
++shortcut_count <= 9)
shortcut = tostr(shortcut_count);
if (new_pos == pos + 1) {
label += "%x" + tostr(action + action_offset);
if (!shortcut.empty()) {
label += "%h";
fl_addtopup(menu, label.c_str(),
shortcut.c_str());
} else
fl_addtopup(menu, label.c_str());
} else {
int menu2 = get_new_submenu(smn, win);
add_toc2(menu2, extra_label, smn, win,
toc_list, pos, new_pos, depth+1);
label += "%m";
if (!shortcut.empty()) {
label += "%h";
fl_addtopup(menu, label.c_str(), menu2,
shortcut.c_str());
} else
fl_addtopup(menu, label.c_str(), menu2);
}
pos = new_pos;
}
}
}
} // namespace anon
void Menubar::Pimpl::add_toc(int menu, string const & extra_label,
vector<int> & smn, Window win)
{
Buffer::Lists toc_list = owner_->buffer()->getLists();
Buffer::Lists::const_iterator cit = toc_list.begin();
Buffer::Lists::const_iterator end = toc_list.end();
for (; cit != end; ++cit) {
// Handle this elsewhere
if (cit->first == "TOC") continue;
// All the rest is for floats
int menu_first_sub = get_new_submenu(smn, win);
int menu_current = menu_first_sub;
Buffer::SingleList::const_iterator ccit = cit->second.begin();
Buffer::SingleList::const_iterator eend = cit->second.end();
size_type count = 0;
for (; ccit != eend; ++ccit) {
++count;
if (count > max_number_of_items) {
int menu_tmp = get_new_submenu(smn, win);
string label = _("More");
label += "...%m";
fl_addtopup(menu_current, label.c_str(), menu_tmp);
count = 1;
menu_current = menu_tmp;
}
int const action =
lyxaction
.getPseudoAction(LFUN_GOTO_PARAGRAPH,
tostr(ccit->par->id()));
string label = fixlabel(ccit->str);
label = limit_string_length(label);
label += "%x" + tostr(action + action_offset);
fl_addtopup(menu_current, label.c_str());
}
string const m = floatList[cit->first]->second.name() + "%m";
fl_addtopup(menu, m.c_str(), menu_first_sub);
}
// Handle normal TOC
cit = toc_list.find("TOC");
if (cit == end) {
string const tmp = _("No Table of contents%i") + extra_label;
fl_addtopup(menu, tmp.c_str());
return;
} else {
add_toc2(menu, extra_label, smn, win,
cit->second, 0, cit->second.size(), 0);
}
}
int Menubar::Pimpl::create_submenu(Window win, LyXView * view,
string const & menu_name,
vector<int> & smn)
{
if (!menubackend_->hasMenu(menu_name)) {
lyxerr << "ERROR:create_submenu: Unknown menu `"
<< menu_name << "'" << endl;
return -1;
}
Menu md;
menubackend_->getMenu(menu_name).expand(md, owner_->buffer());
int const menu = get_new_submenu(smn, win);
fl_setpup_softedge(menu, true);
fl_setpup_bw(menu, -1);
lyxerr[Debug::GUI] << "Adding menu " << menu
<< " in deletion list" << 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 = md.end();
for (Menu::const_iterator i = md.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;
// Compute where to put separators
vector<string> extra_labels(md.size());
vector<string>::iterator it = extra_labels.begin();
vector<string>::iterator last = it;
for (Menu::const_iterator i = md.begin(); i != end; ++i, ++it)
if (i->kind() == MenuItem::Separator)
*last = "%l";
else if (!i->optional() ||
!(view->getLyXFunc()->getStatus(i->action()).disabled()))
last = it;
it = extra_labels.begin();
for (Menu::const_iterator i = md.begin(); i != end; ++i, ++it) {
MenuItem const & item = (*i);
string & extra_label = *it;
switch (item.kind()) {
case MenuItem::Command: {
FuncStatus const flag =
view->getLyXFunc()->getStatus(item.action());
// handle optional entries.
if (item.optional()
&& (flag.disabled())) {
lyxerr[Debug::GUI]
<< "Skipping optional item "
<< item.label() << endl;
break;
}
// Get the keys bound to this action, but keep only the
// first one later
string const accel = toplevel_keymap->findbinding(kb_action(item.action()));
// Build the menu label from all the info
string label = item.label();
if (!accel.empty()) {
// Try to be clever and add just enough
// tabs to align shortcuts.
do
label += '\t';
while (string_width(label) < max_width + 5);
label += accel.substr(1,accel.find(']') - 1);
}
label += "%x" + tostr(item.action() + action_offset)
+ extra_label;
// Modify the entry using the function status
string pupmode;
if (flag.onoff(true))
pupmode += "%B";
if (flag.onoff(false))
pupmode += "%b";
if (flag.disabled() || flag.unknown())
pupmode += "%i";
label += pupmode;
// Finally the menu shortcut
string shortcut = item.shortcut();
if (!shortcut.empty()) {
shortcut += lowercase(shortcut[0]);
label += "%h";
fl_addtopup(menu, label.c_str(),
shortcut.c_str());
} else
fl_addtopup(menu, label.c_str());
lyxerr[Debug::GUI] << "Command: \""
<< lyxaction.getActionName(item.action())
<< "\", binding \"" << accel
<< "\", shortcut \"" << shortcut
<< "\"" << endl;
break;
}
case MenuItem::Submenu: {
int submenu = create_submenu(win, view,
item.submenu(), smn);
if (submenu == -1)
return -1;
string label = item.label();
label += extra_label + "%m";
string shortcut = item.shortcut();
if (!shortcut.empty()) {
shortcut += lowercase(shortcut[0]);
label += "%h";
fl_addtopup(menu, label.c_str(),
submenu, shortcut.c_str());
} else {
fl_addtopup(menu, label.c_str(), submenu);
}
break;
}
case MenuItem::Separator:
// already done, and if it was the first one,
// we just ignore it.
break;
case MenuItem::Toc:
add_toc(menu, extra_label, smn, win);
break;
case MenuItem::Documents:
case MenuItem::Lastfiles:
case MenuItem::ViewFormats:
case MenuItem::UpdateFormats:
case MenuItem::ExportFormats:
case MenuItem::ImportFormats:
case MenuItem::FloatListInsert:
case MenuItem::FloatInsert:
lyxerr << "Menubar::Pimpl::create_submenu: "
"this should not happen" << endl;
break;
}
}
return menu;
}
void Menubar::Pimpl::MenuCallback(FL_OBJECT * ob, long button)
{
ItemInfo * iteminfo = static_cast<ItemInfo *>(ob->u_vdata);
// lyxerr << "MenuCallback: ItemInfo address=" << iteminfo
// << "Val=(pimpl_=" << iteminfo->pimpl_
// << ", item_=" << iteminfo->item_
// << ", obj_=" << iteminfo->obj_ << ")" <<endl;
LyXView * 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);
vector<int> submenus;
int menu = iteminfo->pimpl_->
create_submenu(FL_ObjWin(ob), view,
item->submenu(), submenus);
if (menu != -1) {
// place popup
fl_setpup_position(static_cast<XFormsView *>(view)->getForm()->x + ob->x,
static_cast<XFormsView *>(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()->verboseDispatch(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);
}
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