src/LyXView.C

   1 // -*- C++ -*-
   2 /* This file is part of
   3 * ======================================================
   4 *
   5 *           LyX, The Document Processor
   6 *
   7 *           Copyright (C) 1995 Matthias Ettrich
   8 *           Copyright (C) 1995-1998 The LyX Team.
   9 *
  10 *======================================================*/
  11
  12 #include <config.h>
  13
  14 #ifdef __GNUG__
  15 #pragma implementation
  16 #endif
  17
  18 #include "LyXView.h"
  19 #include "lyx_main.h"
  20 #include "lyxlookup.h"
  21 #include "toolbar.h"
  22 #include "minibuffer.h"
  23 #include "lyxfunc.h"
  24 #include "lyx.xpm"
  25 #include "error.h"
  26 #include "layout_forms.h"
  27 #include "intl.h"
  28 #include "lyxrc.h"
  29 #include "lyxscreen.h"
  30 #include "filetools.h"        // OnlyFilename()
  31 #include "layout.h"
  32 #include "lyxtext.h"
  33
  34 //      $Id: LyXView.C,v 1.1 1999/09/27 18:44:36 larsbj Exp $
  35
  36 #if !defined(lint) && !defined(WITH_WARNINGS)
  37 static char vcid[] = "$Id: LyXView.C,v 1.1 1999/09/27 18:44:36 larsbj Exp $";
  38 #endif /* lint */
  39
  40 extern FD_form_document *fd_form_document;
  41 FD_form_main *fd_form_main; /* a pointer to the one in LyXView
  42                                should be removed as soon as possible */
  43
  44 MiniBuffer *minibuffer;/* a pointer to the one in LyXView
  45                           should be removed as soon as possible */
  46
  47 extern void AutoSave();
  48 extern char updatetimer;
  49 extern void QuitLyX();
  50 int current_layout = 0;
  51
  52 // This is very temporary
  53 BufferView *current_view;
  54
  55
  56 LyXView::LyXView(int width, int height)
  57 {
  58         fd_form_main = create_form_form_main(width,height);
  59         fl_set_form_atclose(_form, atCloseMainFormCB, NULL);
  60         lyxerr.debug("Initializing LyXFunc");
  61         lyxfunc = new LyXFunc(this);
  62         intl = new Intl;
  63 }
  64
  65
  66 LyXView::~LyXView()
  67 {
  68         delete menus;
  69         delete toolbar;
  70         delete bufferview;
  71         delete minibuffer;
  72         delete lyxfunc;
  73         delete intl;
  74 }
  75
  76 /// Redraw the main form.
  77 void LyXView::redraw() {
  78         lyxerr.debug("LyXView::redraw()");
  79         fl_redraw_form(_form);
  80         minibuffer->Activate();
  81 }
  82
  83
  84 // Callback for update timer
  85 void LyXView::UpdateTimerCB(FL_OBJECT *ob, long)
  86 {
  87         LyXView *view = (LyXView*) ob->u_vdata;
  88         if (!view->currentView()->available())
  89                 return;
  90         if (!view->currentView()->getScreen() || !updatetimer)
  91                 return;
  92
  93         view->currentView()->getScreen()->HideCursor();
  94         view->currentBuffer()->update(-2);
  95         /* This update can happen, even when the work area has lost
  96          * the focus. So suppress the cursor in that case */
  97         updatetimer = 0;
  98 }
  99
 100
 101 // Callback for autosave timer
 102 void LyXView::AutosaveTimerCB(FL_OBJECT *, long)
 103 {
 104         lyxerr.debug("Running AutoSave()");
 105         AutoSave();
 106 }
 107
 108
 109 /// Reset autosave timer
 110 void LyXView::resetAutosaveTimer()
 111 {
 112         if (lyxrc->autosave)
 113                 fl_set_timer(_form_main->timer_autosave, lyxrc->autosave);
 114 }
 115
 116
 117 // Callback for close main form from window manager
 118 int LyXView::atCloseMainFormCB(FL_FORM *, void *)
 119 {
 120         QuitLyX();
 121         return FL_IGNORE;
 122 }
 123
 124
 125 void LyXView::setPosition(int x, int y)
 126 {
 127         fl_set_form_position(_form, x, y);
 128 }
 129
 130
 131 void LyXView::show(int place, int border, char const* title)
 132 {
 133         fl_show_form(_form, place, border, title);
 134         minibuffer->Init();
 135         InitLyXLookup(fl_display, _form->window);
 136 }
 137
 138
 139 FD_form_main *LyXView::create_form_form_main(int width, int height)
 140         /* to make this work as it should, .lyxrc should have been
 141          * read first; OR maybe this one should be made dynamic.
 142          * Hmmmm. Lgb.
 143          * We will probably not have lyxrc before the main form is
 144          * initialized, because error messages from lyxrc parsing
 145          * are presented (and rightly so) in GUI popups. Asger.
 146          */
 147 {
 148         FL_OBJECT *obj;
 149
 150         FD_form_main *fdui = (FD_form_main *)
 151                 fl_calloc(1, sizeof(FD_form_main));
 152
 153         _form_main = fdui;
 154
 155         // the main form
 156         _form = fdui->form_main = fl_bgn_form(FL_NO_BOX, width, height);
 157         fdui->form_main->u_vdata = (void*) this;
 158         obj = fl_add_box(FL_FLAT_BOX,0,0,width,height,"");
 159         fl_set_object_color(obj,FL_MCOL,FL_MCOL);
 160
 161         // Parameters for the appearance of the main form
 162         const int air = 2;
 163         const int bw = abs(fl_get_border_width());
 164
 165         //
 166         // THE MENUBAR
 167         //
 168
 169         menus = new Menus(this, air);
 170
 171         //
 172         // TOOLBAR
 173         //
 174
 175         toolbar = new Toolbar(lyxrc->toolbar, this, air, 30 + air + bw);
 176
 177         // Setup the toolbar
 178         toolbar->set(true);
 179
 180         //
 181         // WORKAREA
 182         //
 183
 184         const int ywork = 60 + 2*air + bw;
 185         const int workheight = height - ywork - (25 + 2*air);
 186
 187         ::current_view = bufferview = new BufferView(this, air, ywork,
 188                                                      width - 3*air,
 189                                                      workheight);
 190
 191         //
 192         // MINIBUFFER
 193         //
 194
 195         minibuffer = new MiniBuffer(this, air, height-(25+air),
 196                                           width-(2*air), 25);
 197         ::minibuffer = minibuffer; // to be removed later
 198
 199
 200         //
 201         // TIMERS
 202         //
 203
 204         // timer_autosave
 205         fdui->timer_autosave = obj = fl_add_timer(FL_HIDDEN_TIMER,
 206                                                   0,0,0,0,"Timer");
 207         fl_set_object_callback(obj,AutosaveTimerCB,0);
 208
 209         // timer_update
 210         fdui->timer_update = obj = fl_add_timer(FL_HIDDEN_TIMER,
 211                                                 0,0,0,0,"Timer");
 212         fl_set_object_callback(obj,UpdateTimerCB,0);
 213         obj->u_vdata = (void*) this;
 214
 215         //
 216         // Misc
 217         //
 218
 219         //  assign an icon to main form
 220         unsigned int w, h;
 221         Pixmap lyx_p, lyx_mask;
 222         lyx_p = fl_create_from_pixmapdata(fl_root,
 223                                           lyx_xpm,
 224                                           &w,
 225                                           &h,
 226                                           &lyx_mask,
 227                                           0,
 228                                           0,
 229                                           0); // this leaks
 230         fl_set_form_icon(fdui->form_main, lyx_p, lyx_mask);
 231
 232         // set min size
 233         fl_set_form_minsize(fdui->form_main, 50, 50);
 234
 235         fl_end_form();
 236
 237         return fdui;
 238 }
 239
 240
 241 void LyXView::init()
 242 {
 243         // Set the textclass choice
 244         invalidateLayoutChoice();
 245         updateLayoutChoice();
 246         UpdateDocumentClassChoice();
 247
 248         // Start autosave timer
 249         if (lyxrc->autosave)
 250                 fl_set_timer(_form_main->timer_autosave, lyxrc->autosave);
 251
 252
 253         // Install the raw callback for keyboard events
 254         fl_register_raw_callback(_form,
 255                                  KeyPressMask,
 256                                  KeyPressMask_raw_callback);
 257         intl->InitKeyMapper(lyxrc->use_kbmap);
 258 }
 259
 260
 261 void LyXView::invalidateLayoutChoice()
 262 {
 263         last_textclass = -1;
 264 }
 265
 266
 267 void LyXView::updateLayoutChoice()
 268 {
 269         /* update the layout display */
 270         if (!toolbar->combox) return;
 271
 272         // this has a bi-effect that the layouts are not showed when no
 273         // document is loaded.
 274         if (bufferview==0 || bufferview->currentBuffer()==0) {
 275                 toolbar->combox->clear();
 276                 toolbar->combox->Redraw();
 277                 return;
 278         }
 279
 280         // If textclass is different, we need to update the list
 281         if (toolbar->combox->empty() ||
 282             (last_textclass != currentBuffer()->params.textclass)) {
 283                 toolbar->combox->clear();
 284                 for (int i = 0;
 285                      lyxstyle.NameOfLayout(currentBuffer()->
 286                                            params.textclass, i) !="@@end@@";
 287                      i++) {
 288                         LyXLayout *layout = lyxstyle.
 289                                 Style(currentBuffer()->params.textclass, i);
 290                         if (layout->obsoleted_by.empty())
 291                                 toolbar->combox->addline(layout->name.c_str());
 292                         else
 293                                 toolbar->combox->addline(("@N"+layout->name).c_str());
 294                 }
 295                 last_textclass = currentBuffer()->params.textclass;
 296                 current_layout = 0;
 297         }
 298         // we need to do this.
 299         toolbar->combox->Redraw();
 300
 301         char layout = currentBuffer()->text->cursor.par->GetLayout();
 302
 303         if (layout != current_layout){
 304                 toolbar->combox->select(layout + 1);
 305                 current_layout = layout;
 306         }
 307 }
 308
 309
 310 void LyXView::UpdateDocumentClassChoice()
 311 {
 312         /* update the document class display in the document form */
 313         int i;
 314         if (fd_form_document) {
 315                 fl_clear_choice(fd_form_document->choice_class);
 316                 for (i = 0; lyxstyle.DescOfClass (i)!="@@end@@"; i++) {
 317                         fl_addto_choice(fd_form_document->choice_class,
 318                                         lyxstyle.DescOfClass(i).c_str());
 319                 }
 320         }
 321 }
 322
 323
 324 // This is necessary, since FL_FREE-Objects doesn't get all keypress events
 325 // as FL_KEYBOARD events :-(   Matthias 280596
 326 int LyXView::KeyPressMask_raw_callback(FL_FORM *fl, void *xev)
 327 {
 328         LyXView *view = (LyXView*) fl->u_vdata;
 329         int retval = 0;  // 0 means XForms should have a look at this event
 330
 331         // funny. Even though the raw_callback is registered with KeyPressMask,
 332         // also KeyRelease-events are passed through:-(
 333         // [It seems that xforms puts them in pairs... (JMarc)]
 334         if (((XEvent*)xev)->type == KeyPress
 335             && view->bufferview->getWorkArea()->focus
 336             && view->bufferview->getWorkArea()->active)
 337                 retval = view->getLyXFunc()->processKeyEvent((XEvent*)xev);
 338
 339         return retval;
 340 }
 341
 342
 343 // Updates the title of the window with the filename of the current document
 344 void LyXView::updateWindowTitle() {
 345         static LString last_title="LyX";
 346         LString title = "LyX";
 347
 348         if (currentView()->available()) {
 349                 LString cur_title = currentBuffer()->getFileName();
 350                 if (!cur_title.empty()){
 351                         title += ": " + OnlyFilename(cur_title);
 352                         if (!currentBuffer()->isLyxClean())
 353                                 title += _(" (Changed)");
 354                         if (currentBuffer()->isReadonly())
 355                                 title += _(" (read only)");
 356                 }
 357         }
 358         // Don't update title if it's the same as last time
 359         if (title != last_title) {
 360                 fl_set_form_title(_form, title.c_str());
 361                 last_title = title;
 362         }
 363 }