lyx_mirror/src/frontends/xforms/Menubar_pimpl.C

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/* This file is part of
* ======================================================
*
* LyX, The Document Processor
*
* Copyright (C) 1999 The LyX Team.
*
*======================================================*/
#ifdef __GNUG__
#pragma implementation
#endif
#include <config.h>
#include <algorithm>
#include <cctype>
#include "support/lstrings.h"
#include "support/filetools.h"
#include "support/StrPool.h"
#include "support/LAssert.h"
#include "debug.h"
#include "LyXAction.h"
#include "lyxfunc.h"
#include "kbmap.h"
#include "bufferlist.h"
#include "lastfiles.h"
#include "LyXView.h"
#include "MenuBackend.h"
#include "Menubar_pimpl.h"
using std::endl;
extern kb_keymap * toplevel_keymap;
extern LyXAction lyxaction;
extern BufferList bufferlist;
extern LastFiles * lastfiles;
// Some constants
const int MENU_LABEL_SIZE = FL_NORMAL_SIZE;
const int mheight = 30;
const int mbheight= 22;
// where to place the menubar?
const int yloc = (mheight - mbheight)/2; //air + bw;
const int mbadd = 20; // menu button add (to width)
// Some space between buttons on the menubar
const int air = 2;
char const * menu_tabstop = "aa";
char const * default_tabstop = "aaaaaaaa";
Menubar::Pimpl::Pimpl(LyXView * view, MenuBackend const & mb)
: frame_(0), owner_(view), menubackend_(&mb)
{
// Should we do something here?
}
Menubar::Pimpl::~Pimpl()
{
// Should we do something here?
}
// This is used a few times below.
inline
int string_width(string const & str)
{
return fl_get_string_widthTAB(FL_NORMAL_STYLE, MENU_LABEL_SIZE,
str.c_str(), str.length());
}
//Defined later, used in set().
extern "C"
void C_Menubar_Pimpl_MenuCallback(FL_OBJECT * ob, long button);
void Menubar::Pimpl::set(string const & menu_name)
{
lyxerr[Debug::GUI] << "Entering Menubar::Pimpl::set "
<< "for menu `" << menu_name << "'" << endl;
if (menu_name == current_menu) {
lyxerr[Debug::GUI] << "Nothing to do." << endl;
return;
}
// If the backend has not been initialized yet, we use a
// default instead.
if (menubackend_->empty()) {
lyxerr << "Menubar::Pimpl::set: menubackend is empty! "
"using default values." << endl;
MenuBackend * mb = new MenuBackend();
mb->defaults();
menubackend_ = mb;
}
if (!menubackend_->hasMenu(menu_name)){
lyxerr << "ERROR:set: Unknown menu `" << menu_name
<< "'" << endl;
return;
}
Menu menu = menubackend_->getMenu(menu_name);
if (!menu.menubar()) {
lyxerr << "Only a menubar-type object can go in a "
"toplevel menu" << endl;
return;
}
current_menu = menu_name;
FL_FORM * form = owner_->getForm();
int moffset = 0;
bool form_was_open, form_was_frozen;
if (fl_current_form == form)
form_was_open = true;
else if (fl_current_form == 0) {
form_was_open = false;
fl_addto_form(form);
}
else {
lyxerr << "Something is wrong: unknown form "
<< fl_current_form << " is already open"
<< "(main form is " << form << ")" << endl;
return;
}
if (form->frozen)
form_was_frozen = true;
else {
form_was_frozen = false;
fl_freeze_form(form);
}
// Delete old buttons if there are some.
for(ButtonList::const_iterator cit = buttonlist_.begin();
cit != buttonlist_.end(); ++cit) {
if ((*cit)->obj_) {
fl_delete_object((*cit)->obj_);
fl_free_object((*cit)->obj_);
}
delete (*cit);
}
buttonlist_.clear();
// Create menu frame if there is non yet.
if (!frame_) {
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);
}
for (Menu::const_iterator i = menu.begin();
i != menu.end(); ++i) {
FL_OBJECT * obj;
if (i->kind() != MenuItem::Submenu) {
lyxerr << "ERROR: Menubar::Pimpl::Pimpl:"
" only submenus can appear in a menubar";
break;
}
string label = i->label();
string shortcut = '#' + i->shortcut();
int width = string_width(label);
obj = fl_add_button(FL_TOUCH_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, FL_NORMAL_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);
ItemInfo * iteminfo = new ItemInfo(this,
new MenuItem(*i), obj);
buttonlist_.push_back(iteminfo);
obj->u_vdata = iteminfo;
// lyxerr << "MenuCallback: ItemInfo address=" << iteminfo
// << " Val=(pimpl_=" << iteminfo->pimpl_
// << ", item_=" << iteminfo->item_
// << ", obj_=" << iteminfo->obj_ << ")" <<endl;
}
if (!form_was_frozen) {
fl_unfreeze_form(form);
}
if (!form_was_open)
fl_end_form();
// Force the redraw of the buttons (probably not the best
// method, but...)
for(ButtonList::const_iterator cit = buttonlist_.begin();
cit != buttonlist_.end(); ++cit) {
if ((*cit)->obj_) {
fl_redraw_object((*cit)->obj_);
}
}
lyxerr[Debug::GUI] << "Menubar set." << endl;
}
void Menubar::Pimpl::openByName(string const & 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;
}
void Menubar::Pimpl::add_lastfiles(int menu, string const & extra_label,
std::vector<int> & /*smn*/,
StrPool & strpool)
{
int ii = 1;
for (LastFiles::const_iterator cit = lastfiles->begin();
cit != lastfiles->end() && ii < 10; ++cit, ++ii) {
int action =
lyxaction.getPseudoAction(LFUN_FILE_OPEN, (*cit));
string label = tostr(ii) + ". "
+ MakeDisplayPath((*cit),30)
+ "%x" + tostr(action) + "%h";
if ((cit + 1) == lastfiles->end())
label += extra_label;
string shortcut = tostr(ii) + "#" + tostr(ii);
lyxerr[Debug::GUI] << "shortcut is " << shortcut <<
endl;
fl_addtopup(menu, strpool.add(label), strpool.add(shortcut));
}
}
void Menubar::Pimpl::add_documents(int menu, string const & extra_label,
std::vector<int> & /*smn*/,
StrPool & strpool)
{
std::vector<string> names = bufferlist.getFileNames();
if (names.empty()) {
fl_addtopup(menu,_("No Documents Open!%i"));
return;
}
for (std::vector<string>::const_iterator cit = names.begin();
cit != names.end() ; ++cit) {
int action =
lyxaction.getPseudoAction(LFUN_SWITCHBUFFER, *cit);
string label = MakeDisplayPath(*cit, 30)
+ "%x" + tostr(action);
if ((cit + 1) == names.end())
label += extra_label;
fl_addtopup(menu, strpool.add(label));
}
}
int Menubar::Pimpl::create_submenu(Window win, LyXView * view,
string const & menu_name,
std::vector<int> & smn, StrPool & strpool)
{
if (!menubackend_->hasMenu(menu_name)){
lyxerr << "ERROR:create_submenu: Unknown menu `"
<< menu_name << "'" << endl;
return -1;
}
Menu md = menubackend_->getMenu(menu_name);
int menu = fl_newpup(win);
fl_setpup_softedge(menu, true);
fl_setpup_bw(menu, -1);
lyxerr[Debug::GUI] << "Adding menu " << menu
<< " in deletion list" << endl;
smn.push_back(menu);
// Compute the size of the largest label (because xforms is
// not able to support shortcuts correctly...)
int max_width = 0;
string widest_label;
for (Menu::const_iterator i = md.begin(); i != md.end(); ++i) {
MenuItem item = (*i);
if (item.kind() == MenuItem::Command) {
string label = item.label() + '\t';
int 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;
for (Menu::const_iterator i = md.begin(); i != md.end(); ++i) {
MenuItem item = (*i);
// Is there a separator after this item?
string extra_label;
if ((i+1) != md.end()
&& (i+1)->kind() == MenuItem::Separator)
extra_label = "%l";
switch(item.kind()) {
case MenuItem::Command: {
LyXFunc::func_status flag =
view->getLyXFunc()->getStatus(item.action());
// handle optional entries.
if (item.optional() && (flag & LyXFunc::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 accel = toplevel_keymap->findbinding(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);
label += accel.substr(1,accel.find(']') - 1);
}
label += "%x" + tostr(item.action()) + extra_label;
// Modify the entry using the function status
string pupmode;
if (flag & (LyXFunc::Disabled | LyXFunc::Unknown))
pupmode += "%i";
if (flag & LyXFunc::ToggleOn)
pupmode += "%B";
if (flag & LyXFunc::ToggleOff)
pupmode += "%b";
label += pupmode;
// Finally the menu shortcut
string shortcut = item.shortcut();
if (!shortcut.empty()) {
shortcut += lowercase(shortcut[0]);
label += "%h";
fl_addtopup(menu, strpool.add(label),
strpool.add(shortcut));
} else
fl_addtopup(menu, strpool.add(label));
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, strpool);
if (submenu == -1)
return -1;
string label = item.label();
label += extra_label + "%m";
string shortcut = item.shortcut();
if (!shortcut.empty()) {
shortcut += lowercase(shortcut[0]);
fl_addtopup(menu, strpool.add(label + "%h"),
submenu, strpool.add(shortcut));
}
else {
fl_addtopup(menu, strpool.add(label), submenu);
}
break;
}
case MenuItem::Separator:
// already done, and if it was the first one,
// we just ignore it.
break;
case MenuItem::Documents:
add_documents(menu, extra_label, smn, strpool);
break;
case MenuItem::Lastfiles:
add_lastfiles(menu, extra_label, smn, strpool);
break;
}
}
return menu;
}
extern "C"
void C_Menubar_Pimpl_MenuCallback(FL_OBJECT * ob, long button)
{
Menubar::Pimpl::MenuCallback(ob, button);
}
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_;
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
Assert(item->kind() == MenuItem::Submenu);
// set tabstop length
fl_set_tabstop(menu_tabstop);
std::vector<int> submenus;
StrPool strpool;
int menu = iteminfo->pimpl_->
create_submenu(FL_ObjWin(ob), view,
item->submenu(),
submenus, strpool);
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 (choice >= 1) {
view->getLyXFunc()->Dispatch(choice);
}
}
else
lyxerr << "Error in MenuCallback" << endl;
std::for_each(submenus.begin(), submenus.end(), fl_freepup);
// restore tabstop length
fl_set_tabstop(default_tabstop);
}