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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@5445 a592a061-630c-0410-9148-cb99ea01b6c8
440 lines
11 KiB
C
440 lines
11 KiB
C
/**
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* \file xforms/Menubar_pimpl.C
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Lars Gullik Bjønnes
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*
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* Full author contact details are available in file CREDITS
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*/
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#include <config.h>
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#ifdef __GNUG__
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#pragma implementation
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#endif
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#include "Menubar_pimpl.h"
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#include "MenuBackend.h"
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#include "LyXAction.h"
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#include "kbmap.h"
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#include "Dialogs.h"
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#include "XFormsView.h"
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#include "lyxfunc.h"
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#include "support/lstrings.h"
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#include "support/LAssert.h"
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#include "gettext.h"
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#include "debug.h"
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#include FORMS_H_LOCATION
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#include <boost/scoped_ptr.hpp>
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#include <algorithm>
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using std::endl;
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using std::vector;
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using std::max;
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using std::min;
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using std::for_each;
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typedef vector<int>::size_type size_type;
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extern boost::scoped_ptr<kb_keymap> toplevel_keymap;
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namespace {
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// Some constants
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int const MENU_LABEL_SIZE = FL_NORMAL_SIZE;
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int const MENU_LABEL_STYLE = FL_NORMAL_STYLE;
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int const mheight = 30;
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int const mbheight= 22;
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// where to place the menubar?
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int const yloc = (mheight - mbheight)/2; //air + bw;
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int const mbadd = 20; // menu button add (to width)
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// Some space between buttons on the menubar
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int const air = 2;
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char const * menu_tabstop = "aa";
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char const * default_tabstop = "aaaaaaaa";
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// We do not want to mix position values in a menu (like the index of
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// a submenu) with the action numbers which convey actual information.
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// Therefore we offset all the action values by an arbitrary large
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// constant.
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int const action_offset = 1000;
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// This is used a few times below.
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inline
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int string_width(string const & str)
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{
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return fl_get_string_widthTAB(MENU_LABEL_STYLE, MENU_LABEL_SIZE,
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str.c_str(),
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static_cast<int>(str.length()));
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}
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} // namespace anon
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extern "C" {
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//Defined later, used in makeMenubar().
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static
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void C_Menubar_Pimpl_MenuCallback(FL_OBJECT * ob, long button)
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{
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Menubar::Pimpl::MenuCallback(ob, button);
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}
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}
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Menubar::Pimpl::Pimpl(LyXView * view, MenuBackend const & mb)
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: owner_(static_cast<XFormsView*>(view)), menubackend_(&mb)
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{
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makeMenubar(menubackend_->getMenubar());
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}
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Menubar::Pimpl::~Pimpl()
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{}
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void Menubar::Pimpl::makeMenubar(Menu const & menu)
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{
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FL_FORM * form = owner_->getForm();
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int moffset = 0;
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// Create menu frame if there is non yet.
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FL_OBJECT * frame = fl_add_frame(FL_UP_FRAME, 0, 0,
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form->w, mheight, "");
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fl_set_object_resize(frame, FL_RESIZE_ALL);
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fl_set_object_gravity(frame, NorthWestGravity,
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NorthEastGravity);
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Menu::const_iterator i = menu.begin();
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Menu::const_iterator end = menu.end();
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for (; i != end; ++i) {
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FL_OBJECT * obj;
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if (i->kind() != MenuItem::Submenu) {
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lyxerr << "ERROR: Menubar::Pimpl::createMenubar:"
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" only submenus can appear in a menubar"
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<< endl;
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continue;
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}
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string const label = i->label();
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string const shortcut = "#" + i->shortcut();
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int const width = string_width(label);
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obj = fl_add_button(FL_MENU_BUTTON,
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air + moffset, yloc,
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width + mbadd,
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mbheight,
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label.c_str());
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fl_set_object_boxtype(obj, FL_FLAT_BOX);
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fl_set_object_color(obj, FL_MCOL, FL_MCOL);
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fl_set_object_lsize(obj, MENU_LABEL_SIZE);
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fl_set_object_lstyle(obj, MENU_LABEL_STYLE);
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fl_set_object_resize(obj, FL_RESIZE_ALL);
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fl_set_object_gravity(obj, NorthWestGravity,
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NorthWestGravity);
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moffset += obj->w + air;
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fl_set_object_shortcut(obj, shortcut.c_str(), 1);
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fl_set_object_callback(obj, C_Menubar_Pimpl_MenuCallback, 1);
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boost::shared_ptr<ItemInfo>
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iteminfo(new ItemInfo(this, new MenuItem(*i), obj));
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buttonlist_.push_back(iteminfo);
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obj->u_vdata = iteminfo.get();
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}
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}
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void Menubar::Pimpl::update()
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{
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// nothing yet
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}
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void Menubar::Pimpl::openByName(string const & name)
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{
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for (ButtonList::const_iterator cit = buttonlist_.begin();
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cit != buttonlist_.end(); ++cit) {
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if ((*cit)->item_->submenuname() == name) {
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MenuCallback((*cit)->obj_, 1);
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return;
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}
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}
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lyxerr << "Menubar::Pimpl::openByName: menu "
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<< name << " not found" << endl;
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}
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namespace {
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Menu::size_type const max_number_of_items = 25;
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int get_new_submenu(vector<int> & smn, Window win)
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{
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static size_type max_number_of_menus = 32;
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if (smn.size() >= max_number_of_menus)
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max_number_of_menus =
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fl_setpup_maxpup(static_cast<int>(2*smn.size()));
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int menu = fl_newpup(win);
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fl_setpup_softedge(menu, true);
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fl_setpup_bw(menu, -1);
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lyxerr[Debug::GUI] << "Adding menu " << menu
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<< " in deletion list" << endl;
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smn.push_back(menu);
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return menu;
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}
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string const fixlabel(string const & str)
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{
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#if FL_VERSION < 1 && FL_REVISION < 89
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return subst(str, '%', '?');
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#else
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return subst(str, "%", "%%");
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#endif
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}
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} // namespace anon
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int Menubar::Pimpl::create_submenu(Window win, XFormsView * view,
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Menu const & menu, vector<int> & smn,
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bool & all_disabled)
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{
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const int menuid = get_new_submenu(smn, win);
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lyxerr[Debug::GUI] << "Menubar::Pimpl::create_submenu: creating "
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<< menu.name() << " as menuid=" << menuid << endl;
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// Compute the size of the largest label (because xforms is
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// not able to support shortcuts correctly...)
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int max_width = 0;
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string widest_label;
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Menu::const_iterator end = menu.end();
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for (Menu::const_iterator i = menu.begin(); i != end; ++i) {
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MenuItem const & item = (*i);
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if (item.kind() == MenuItem::Command) {
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string const label = item.label() + '\t';
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int const width = string_width(label);
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if (width > max_width) {
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max_width = width;
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widest_label = label;
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}
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}
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}
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lyxerr[Debug::GUI] << "max_width=" << max_width
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<< ", widest_label=`" << widest_label
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<< "'" << endl;
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// Compute where to put separators
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vector<string> extra_labels(menu.size());
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vector<string>::iterator it = extra_labels.begin();
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vector<string>::iterator last = it;
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for (Menu::const_iterator i = menu.begin(); i != end; ++i, ++it)
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if (i->kind() == MenuItem::Separator)
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*last = "%l";
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else if (!i->optional() ||
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!(view->getLyXFunc().getStatus(i->action()).disabled()))
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last = it;
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it = extra_labels.begin();
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size_type count = 0;
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all_disabled = true;
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int curmenuid = menuid;
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for (Menu::const_iterator i = menu.begin(); i != end; ++i, ++it) {
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MenuItem const & item = (*i);
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string & extra_label = *it;
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++count;
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// add a More... submenu if the menu is too long (but
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// not just for one extra entry!)
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if (count > max_number_of_items && (i+1) != end) {
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int tmpmenuid = get_new_submenu(smn, win);
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lyxerr[Debug::GUI] << "Too many items, creating "
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<< "new menu " << tmpmenuid << endl;
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string label = _("More");
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label += "...%m";
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fl_addtopup(curmenuid, label.c_str(), tmpmenuid);
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count = 1;
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curmenuid = tmpmenuid;
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}
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switch (item.kind()) {
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case MenuItem::Command: {
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FuncStatus const flag =
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view->getLyXFunc().getStatus(item.action());
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// handle optional entries.
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if (item.optional()
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&& (flag.disabled())) {
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lyxerr[Debug::GUI]
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<< "Skipping optional item "
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<< item.label() << endl;
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break;
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}
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// Get the keys bound to this action, but keep only the
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// first one later
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string const accel =
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toplevel_keymap->findbinding(item.action());
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// Build the menu label from all the info
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string label = fixlabel(item.label());
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if (!accel.empty()) {
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// Try to be clever and add just enough
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// tabs to align shortcuts.
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do
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label += '\t';
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while (string_width(label) < max_width + 5);
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label += accel.substr(1,accel.find(']') - 1);
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}
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label += "%x" + tostr(item.action() + action_offset)
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+ extra_label;
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// Modify the entry using the function status
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string pupmode;
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if (flag.onoff(true))
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pupmode += "%B";
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if (flag.onoff(false))
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pupmode += "%b";
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if (flag.disabled() || flag.unknown())
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pupmode += "%i";
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else
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all_disabled = false;
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label += pupmode;
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// Finally the menu shortcut
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string shortcut = item.shortcut();
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if (!shortcut.empty()) {
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shortcut += lowercase(shortcut[0]);
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label += "%h";
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fl_addtopup(curmenuid, label.c_str(),
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shortcut.c_str());
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} else
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fl_addtopup(curmenuid, label.c_str());
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lyxerr[Debug::GUI] << "Command: \""
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<< lyxaction.getActionName(item.action())
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<< "\", binding \"" << accel
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<< "\", shortcut \"" << shortcut
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<< "\" (added to menu"
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<< curmenuid << ")" << endl;
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break;
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}
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case MenuItem::Submenu: {
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bool sub_all_disabled;
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int submenuid = create_submenu(win, view,
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*item.submenu(), smn,
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sub_all_disabled);
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all_disabled &= sub_all_disabled;
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if (submenuid == -1)
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return -1;
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string label = fixlabel(item.label());
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label += extra_label + "%m";
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if (sub_all_disabled)
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label += "%i";
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string shortcut = item.shortcut();
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if (!shortcut.empty()) {
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shortcut += lowercase(shortcut[0]);
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label += "%h";
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fl_addtopup(curmenuid, label.c_str(),
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submenuid, shortcut.c_str());
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} else {
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fl_addtopup(curmenuid, label.c_str(),
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submenuid);
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}
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break;
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}
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case MenuItem::Separator:
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// already done, and if it was the first one,
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// we just ignore it.
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break;
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default:
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lyxerr << "Menubar::Pimpl::create_submenu: "
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"this should not happen" << endl;
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break;
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}
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}
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return menuid;
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}
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void Menubar::Pimpl::MenuCallback(FL_OBJECT * ob, long button)
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{
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ItemInfo * iteminfo = static_cast<ItemInfo *>(ob->u_vdata);
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XFormsView * view = iteminfo->pimpl_->owner_;
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MenuItem const * item = iteminfo->item_.get();
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if (button == 1) {
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// set the pseudo menu-button
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fl_set_object_boxtype(ob, FL_DOWN_BOX);
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fl_set_button(ob, 0);
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fl_redraw_object(ob);
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}
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// Paranoia check
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lyx::Assert(item->kind() == MenuItem::Submenu);
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// set tabstop length
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fl_set_tabstop(menu_tabstop);
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MenuBackend const * menubackend_ = iteminfo->pimpl_->menubackend_;
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Menu tomenu;
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Menu const frommenu = menubackend_->getMenu(item->submenuname());
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menubackend_->expand(frommenu, tomenu, view->buffer());
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vector<int> submenus;
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bool all_disabled = true;
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int menu = iteminfo->pimpl_->
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create_submenu(FL_ObjWin(ob), view, tomenu,
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submenus, all_disabled);
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if (menu != -1) {
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// place popup
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fl_setpup_position(view->getForm()->x + ob->x,
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view->getForm()->y + ob->y + ob->h + 10);
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int choice = fl_dopup(menu);
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if (button == 1) {
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// set the pseudo menu-button back
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fl_set_object_boxtype(ob, FL_FLAT_BOX);
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fl_redraw_object(ob);
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}
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// If the action value is too low, then it is not a
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// valid action, but something else.
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if (choice >= action_offset + 1) {
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view->getLyXFunc().dispatch(choice - action_offset, true);
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} else {
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lyxerr[Debug::GUI]
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<< "MenuCallback: ignoring bogus action "
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<< choice << endl;
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}
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} else {
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lyxerr << "Error in MenuCallback" << endl;
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}
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for_each(submenus.begin(), submenus.end(), fl_freepup);
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// restore tabstop length
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fl_set_tabstop(default_tabstop);
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}
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Menubar::Pimpl::ItemInfo::ItemInfo
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(Menubar::Pimpl * p, MenuItem const * i, FL_OBJECT * o)
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: pimpl_(p), obj_(o)
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{
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item_.reset(i);
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}
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Menubar::Pimpl::ItemInfo::~ItemInfo()
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{}
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