src/LyXView.C

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