src/frontends/xforms/FormParagraph.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 2000-2001 The LyX Team.
   7  *
   8  *           @author Jürgen Vigna
   9  *
  10  *======================================================*/
  11
  12 #include <config.h>
  13
  14 #ifdef __GNUG_
  15 #pragma implementation
  16 #endif
  17
  18 #include FORMS_H_LOCATION
  19
  20 #include "FormParagraph.h"
  21 #include "form_paragraph.h"
  22 #include "Dialogs.h"
  23 #include "support/lstrings.h"
  24 #include "Liason.h"
  25 #include "LyXView.h"
  26 #include "buffer.h"
  27 #include "lyxtext.h"
  28 #include "xforms_helpers.h"
  29 #include "BufferView.h"
  30 #include "Spacing.h"
  31 #include "ParagraphParameters.h"
  32 #include "input_validators.h"
  33 #include "helper_funcs.h"
  34
  35 using Liason::setMinibuffer;
  36 using SigC::slot;
  37
  38
  39 FormParagraph::FormParagraph(LyXView * lv, Dialogs * d)
  40         : FormBaseBD(lv, d, _("Paragraph Layout")), par_(0)
  41 {
  42     // let the dialog be shown
  43     // This is a permanent connection so we won't bother
  44     // storing a copy because we won't be disconnecting.
  45     d->showParagraph.connect(slot(this, &FormParagraph::show));
  46 }
  47
  48
  49 void FormParagraph::connect()
  50 {
  51         cp_ = d_->updateParagraph
  52                 .connect(slot(this, &FormParagraph::changedParagraph));
  53         FormBaseBD::connect();
  54 }
  55
  56
  57 void FormParagraph::disconnect()
  58 {
  59         cp_.disconnect();
  60         FormBaseBD::disconnect();
  61 }
  62
  63
  64 Paragraph const * FormParagraph::getCurrentParagraph() const
  65 {
  66         LyXText * text = 0;
  67
  68         if (lv_->view()->theLockingInset())
  69                 text = lv_->view()->theLockingInset()->getLyXText(lv_->view());
  70         if (!text)
  71                 text = lv_->view()->text;
  72         return text->cursor.par();
  73 }
  74
  75
  76 void FormParagraph::changedParagraph()
  77 {
  78         /// Record the paragraph
  79         Paragraph const * const p = getCurrentParagraph();
  80         if (p == 0 || p == par_)
  81                 return;
  82
  83         // For now don't bother checking if the params are different,
  84         // just activate the Apply button
  85         bc().valid();
  86 }
  87
  88
  89 void FormParagraph::redraw()
  90 {
  91         if( form() && form()->visible )
  92                 fl_redraw_form( form() );
  93 }
  94
  95
  96 FL_FORM * FormParagraph::form() const
  97 {
  98     if (dialog_.get()) return dialog_->form;
  99     return 0;
 100 }
 101
 102
 103 void FormParagraph::build()
 104 {
 105     // the tabbed folder
 106     dialog_.reset(build_paragraph());
 107
 108     fl_addto_choice(dialog_->choice_space_above,
 109                     _(" None | Defskip | Smallskip "
 110                       "| Medskip | Bigskip | VFill | Length "));
 111     fl_addto_choice(dialog_->choice_space_below,
 112                     _(" None | Defskip | Smallskip "
 113                       "| Medskip | Bigskip | VFill | Length "));
 114
 115     fl_addto_choice(dialog_->choice_linespacing,
 116                     _(" Default | Single | OneHalf | Double | Other "));
 117
 118     fl_set_input_return(dialog_->input_space_above, FL_RETURN_CHANGED);
 119     fl_set_input_return(dialog_->input_space_below, FL_RETURN_CHANGED);
 120     fl_set_input_return(dialog_->input_labelwidth, FL_RETURN_CHANGED);
 121     fl_set_input_return(dialog_->input_linespacing, FL_RETURN_CHANGED);
 122     fl_set_input_filter(dialog_->input_linespacing, fl_unsigned_float_filter);
 123     fl_set_input_filter(dialog_->input_space_above, fl_unsigned_float_filter);
 124     fl_set_input_filter(dialog_->input_space_below, fl_unsigned_float_filter);
 125
 126     // Create the contents of the unit choices
 127     // Don't include the "%" terms...
 128     std::vector<string> units_vec = getLatexUnits();
 129     for (std::vector<string>::iterator it = units_vec.begin();
 130        it != units_vec.end(); ++it) {
 131        if (contains(*it, "%"))
 132                it = units_vec.erase(it, it+1) - 1;
 133     }
 134     string units = getStringFromVector(units_vec, "|");
 135
 136     fl_addto_choice(dialog_->choice_value_space_above,  units.c_str());
 137     fl_addto_choice(dialog_->choice_value_space_below, units.c_str());
 138
 139     // Manage the ok, apply, restore and cancel/close buttons
 140     bc_.setOK(dialog_->button_ok);
 141     bc_.setApply(dialog_->button_apply);
 142     bc_.setCancel(dialog_->button_cancel);
 143     bc_.setRestore(dialog_->button_restore);
 144
 145     bc_.addReadOnly (dialog_->group_radio_alignment);
 146     // bc_.addReadOnly (dialog_->radio_align_right);
 147     // bc_.addReadOnly (dialog_->radio_align_left);
 148     // bc_.addReadOnly (dialog_->radio_align_block);
 149     // bc_.addReadOnly (dialog_->radio_align_center);
 150     bc_.addReadOnly (dialog_->check_lines_top);
 151     bc_.addReadOnly (dialog_->check_lines_bottom);
 152     bc_.addReadOnly (dialog_->check_pagebreaks_top);
 153     bc_.addReadOnly (dialog_->check_pagebreaks_bottom);
 154     bc_.addReadOnly (dialog_->choice_space_above);
 155     bc_.addReadOnly (dialog_->input_space_above);
 156     bc_.addReadOnly (dialog_->check_space_above);
 157     bc_.addReadOnly (dialog_->choice_space_below);
 158     bc_.addReadOnly (dialog_->input_space_below);
 159     bc_.addReadOnly (dialog_->check_space_below);
 160     bc_.addReadOnly (dialog_->choice_linespacing);
 161     bc_.addReadOnly (dialog_->input_linespacing);
 162     bc_.addReadOnly (dialog_->check_noindent);
 163     bc_.addReadOnly (dialog_->input_labelwidth);
 164 }
 165
 166
 167 void FormParagraph::apply()
 168 {
 169     if (!lv_->view()->available() || !dialog_.get())
 170         return;
 171
 172     VSpace space_top, space_bottom;
 173     LyXAlignment align;
 174     string labelwidthstring;
 175     bool noindent;
 176
 177     // If a vspace kind is "Length" but there's no text in
 178     // the input field, reset the kind to "None".
 179     if ((fl_get_choice (dialog_->choice_space_above) == 7) &&
 180         !*(fl_get_input (dialog_->input_space_above)))
 181     {
 182         fl_set_choice (dialog_->choice_space_above, 1);
 183     }
 184     if ((fl_get_choice (dialog_->choice_space_below) == 7) &&
 185         !*(fl_get_input (dialog_->input_space_below)))
 186     {
 187         fl_set_choice (dialog_->choice_space_below, 1);
 188     }
 189
 190     bool line_top = fl_get_button(dialog_->check_lines_top);
 191     bool line_bottom = fl_get_button(dialog_->check_lines_bottom);
 192     bool pagebreak_top = fl_get_button(dialog_->check_pagebreaks_top);
 193     bool pagebreak_bottom = fl_get_button(dialog_->check_pagebreaks_bottom);
 194
 195     switch (fl_get_choice (dialog_->choice_space_above)) {
 196     case 1:
 197         space_top = VSpace(VSpace::NONE);
 198         break;
 199     case 2:
 200         space_top = VSpace(VSpace::DEFSKIP);
 201         break;
 202     case 3:
 203         space_top = VSpace(VSpace::SMALLSKIP);
 204         break;
 205     case 4:
 206         space_top = VSpace(VSpace::MEDSKIP);
 207         break;
 208     case 5:
 209         space_top = VSpace(VSpace::BIGSKIP);
 210         break;
 211     case 6:
 212         space_top = VSpace(VSpace::VFILL);
 213         break;
 214     case 7:
 215     {
 216             string const length =
 217                     getLengthFromWidgets(dialog_->input_space_above,
 218                                          dialog_->choice_value_space_above);
 219         space_top =
 220                 VSpace(LyXGlueLength(length));
 221         break;
 222     }
 223     }
 224
 225     if (fl_get_button (dialog_->check_space_above))
 226         space_top.setKeep (true);
 227     switch (fl_get_choice (dialog_->choice_space_below)) {
 228     case 1:
 229         space_bottom = VSpace(VSpace::NONE);
 230         break;
 231     case 2:
 232         space_bottom = VSpace(VSpace::DEFSKIP);
 233         break;
 234     case 3:
 235         space_bottom = VSpace(VSpace::SMALLSKIP);
 236         break;
 237     case 4:
 238         space_bottom = VSpace(VSpace::MEDSKIP);
 239         break;
 240     case 5:
 241         space_bottom = VSpace(VSpace::BIGSKIP);
 242         break;
 243     case 6:
 244         space_bottom = VSpace(VSpace::VFILL);
 245         break;
 246     case 7:
 247         space_bottom =
 248                 VSpace(LyXGlueLength(fl_get_input(dialog_->input_space_below)));
 249         break;
 250     }
 251     if (fl_get_button (dialog_->check_space_below))
 252         space_bottom.setKeep (true);
 253
 254     if (fl_get_button(dialog_->radio_align_left))
 255         align = LYX_ALIGN_LEFT;
 256     else if (fl_get_button(dialog_->radio_align_right))
 257         align = LYX_ALIGN_RIGHT;
 258     else if (fl_get_button(dialog_->radio_align_center))
 259         align = LYX_ALIGN_CENTER;
 260     else
 261         align = LYX_ALIGN_BLOCK;
 262
 263     labelwidthstring = fl_get_input(dialog_->input_labelwidth);
 264     noindent = fl_get_button(dialog_->check_noindent);
 265     Spacing::Space linespacing = Spacing::Default;
 266     string other_linespacing;
 267     switch (fl_get_choice(dialog_->choice_linespacing)) {
 268         case 1: linespacing = Spacing::Default; break;
 269         case 2: linespacing = Spacing::Single; break;
 270         case 3: linespacing = Spacing::Onehalf; break;
 271         case 4: linespacing = Spacing::Double; break;
 272         case 5:
 273             linespacing = Spacing::Other;
 274             other_linespacing = fl_get_input(dialog_->input_linespacing);
 275             break;
 276     }
 277
 278     Spacing const spacing(linespacing, other_linespacing);
 279     LyXText * text = 0;
 280     if (lv_->view()->theLockingInset())
 281         text = lv_->view()->theLockingInset()->getLyXText(lv_->view());
 282     if (!text)
 283         text = lv_->view()->text;
 284     text->setParagraph(lv_->view(), line_top, line_bottom, pagebreak_top,
 285                        pagebreak_bottom, space_top, space_bottom, spacing,
 286                        align, labelwidthstring, noindent);
 287
 288
 289     // Actually apply these settings
 290     lv_->view()->update(lv_->view()->text,
 291                         BufferView::SELECT | BufferView::FITCUR | BufferView::CHANGE);
 292     lv_->buffer()->markDirty();
 293     setMinibuffer(lv_, _("Paragraph layout set"));
 294 }
 295
 296
 297 void FormParagraph::update()
 298 {
 299     if (!dialog_.get())
 300         return;
 301
 302     // Do this first; some objects may be de/activated subsequently.
 303     bc_.readOnly(lv_->buffer()->isReadonly());
 304
 305     Buffer * buf = lv_->view()->buffer();
 306
 307     /// Record the paragraph
 308     par_ = getCurrentParagraph();
 309
 310     fl_set_input(dialog_->input_labelwidth,
 311                  par_->getLabelWidthString().c_str());
 312     setEnabled(dialog_->input_labelwidth,
 313                (par_->getLabelWidthString() != _("Senseless with this layout!")));
 314
 315     fl_set_button(dialog_->radio_align_right, 0);
 316     fl_set_button(dialog_->radio_align_left, 0);
 317     fl_set_button(dialog_->radio_align_center, 0);
 318     fl_set_button(dialog_->radio_align_block, 0);
 319
 320     int align = par_->getAlign();
 321     if (align == LYX_ALIGN_LAYOUT)
 322         align = textclasslist.Style(buf->params.textclass,
 323                                     par_->getLayout()).align;
 324
 325     switch (align) {
 326     case LYX_ALIGN_RIGHT:
 327         fl_set_button(dialog_->radio_align_right, 1);
 328         break;
 329     case LYX_ALIGN_LEFT:
 330         fl_set_button(dialog_->radio_align_left, 1);
 331         break;
 332     case LYX_ALIGN_CENTER:
 333         fl_set_button(dialog_->radio_align_center, 1);
 334         break;
 335     default:
 336         fl_set_button(dialog_->radio_align_block, 1);
 337         break;
 338     }
 339
 340     LyXAlignment alignpos =
 341             textclasslist.Style(buf->params.textclass,
 342                                 par_->getLayout()).alignpossible;
 343
 344     setEnabled(dialog_->radio_align_block,  bool(alignpos & LYX_ALIGN_BLOCK));
 345     setEnabled(dialog_->radio_align_center, bool(alignpos & LYX_ALIGN_CENTER));
 346     setEnabled(dialog_->radio_align_left,   bool(alignpos & LYX_ALIGN_LEFT));
 347     setEnabled(dialog_->radio_align_right,  bool(alignpos & LYX_ALIGN_RIGHT));
 348
 349     fl_set_button(dialog_->check_lines_top,
 350                   par_->params().lineTop());
 351     fl_set_button(dialog_->check_lines_bottom,
 352                   par_->params().lineBottom());
 353     fl_set_button(dialog_->check_pagebreaks_top,
 354                   par_->params().pagebreakTop());
 355     fl_set_button(dialog_->check_pagebreaks_bottom,
 356                   par_->params().pagebreakBottom());
 357     fl_set_button(dialog_->check_noindent,
 358                   par_->params().noindent());
 359
 360     int linespacing;
 361     Spacing const space = par_->params().spacing();
 362
 363     switch (space.getSpace()) {
 364         default: linespacing = 1; break;
 365         case Spacing::Single: linespacing = 2; break;
 366         case Spacing::Onehalf: linespacing = 3; break;
 367         case Spacing::Double: linespacing = 4; break;
 368         case Spacing::Other: linespacing = 5; break;
 369     }
 370
 371     fl_set_choice(dialog_->choice_linespacing, linespacing);
 372     if (space.getSpace() == Spacing::Other) {
 373         string const sp = tostr(space.getValue());
 374         fl_set_input(dialog_->input_linespacing, sp.c_str());
 375         setEnabled(dialog_->input_linespacing, true);
 376     } else {
 377         fl_set_input(dialog_->input_linespacing, "");
 378         setEnabled(dialog_->input_linespacing, false);
 379     }
 380
 381     fl_set_input (dialog_->input_space_above, "");
 382
 383     setEnabled(dialog_->input_space_above, false);
 384     setEnabled(dialog_->choice_value_space_above, false);
 385     switch (par_->params().spaceTop().kind()) {
 386     case VSpace::NONE:
 387         fl_set_choice (dialog_->choice_space_above, 1);
 388         break;
 389     case VSpace::DEFSKIP:
 390         fl_set_choice (dialog_->choice_space_above, 2);
 391         break;
 392     case VSpace::SMALLSKIP:
 393         fl_set_choice (dialog_->choice_space_above, 3);
 394         break;
 395     case VSpace::MEDSKIP:
 396         fl_set_choice (dialog_->choice_space_above, 4);
 397         break;
 398     case VSpace::BIGSKIP:
 399         fl_set_choice (dialog_->choice_space_above, 5);
 400         break;
 401     case VSpace::VFILL:
 402         fl_set_choice (dialog_->choice_space_above, 6);
 403         break;
 404     case VSpace::LENGTH:
 405     {
 406             setEnabled(dialog_->input_space_above, true);
 407             setEnabled(dialog_->choice_value_space_above, true);
 408             string const default_unit = "cm";
 409             string const length = par_->params().spaceTop().length().asString();
 410             updateWidgetsFromLengthString(dialog_->input_space_above,
 411                                           dialog_->choice_value_space_above,
 412                                           length, default_unit);
 413             break;
 414     }
 415     }
 416
 417     fl_set_button (dialog_->check_space_above,
 418                    par_->params().spaceTop().keep());
 419     fl_set_input (dialog_->input_space_below, "");
 420
 421     setEnabled(dialog_->input_space_below, false);
 422     setEnabled(dialog_->choice_value_space_below, false);
 423     switch (par_->params().spaceBottom().kind()) {
 424     case VSpace::NONE:
 425         fl_set_choice (dialog_->choice_space_below, 1);
 426         break;
 427     case VSpace::DEFSKIP:
 428         fl_set_choice (dialog_->choice_space_below, 2);
 429         break;
 430     case VSpace::SMALLSKIP:
 431         fl_set_choice (dialog_->choice_space_below, 3);
 432         break;
 433     case VSpace::MEDSKIP:
 434         fl_set_choice (dialog_->choice_space_below, 4);
 435         break;
 436     case VSpace::BIGSKIP:
 437         fl_set_choice (dialog_->choice_space_below, 5);
 438         break;
 439     case VSpace::VFILL:
 440         fl_set_choice (dialog_->choice_space_below, 6);
 441         break;
 442     case VSpace::LENGTH:
 443     {
 444             setEnabled(dialog_->input_space_below, true);
 445             setEnabled(dialog_->choice_value_space_below, true);
 446             string const default_unit = "cm";
 447             string const length =
 448                     par_->params().spaceBottom().length().asString();
 449             updateWidgetsFromLengthString(dialog_->input_space_below,
 450                                           dialog_->choice_value_space_below,
 451                                           length, default_unit);
 452             break;
 453     }
 454     }
 455
 456     fl_set_button(dialog_->check_space_below,
 457                    par_->params().spaceBottom().keep());
 458     fl_set_button(dialog_->check_noindent,
 459                   par_->params().noindent());
 460 }
 461
 462
 463 bool FormParagraph::input(FL_OBJECT * ob, long)
 464 {
 465     bool valid = true;
 466
 467     fl_hide_object(dialog_->text_warning);
 468
 469     // First check the buttons which are exclusive and you have to
 470     // check only the actuall de/activated button.
 471     //
 472     // "Synchronize" the choices and input fields, making it
 473     // impossible to commit senseless data.
 474
 475     if (ob == dialog_->choice_space_above) {
 476         if (fl_get_choice (dialog_->choice_space_above) != 7) {
 477             fl_set_input (dialog_->input_space_above, "");
 478             setEnabled (dialog_->input_space_above, false);
 479            setEnabled (dialog_->choice_value_space_above, false);
 480         } else {
 481             setEnabled (dialog_->input_space_above, !lv_->buffer()->isReadonly());
 482            setEnabled (dialog_->choice_value_space_above, !lv_->buffer()->isReadonly());
 483            int const default_unit = 8;
 484            if (strip(fl_get_input(dialog_->input_space_above)).empty())
 485                        fl_set_choice(dialog_->choice_value_space_above,
 486                                      default_unit);
 487         }
 488     }
 489     if (ob == dialog_->choice_space_below) {
 490         if (fl_get_choice (dialog_->choice_space_below) != 7) {
 491             fl_set_input (dialog_->input_space_below, "");
 492             setEnabled (dialog_->input_space_below, false);
 493            setEnabled (dialog_->choice_value_space_below, false);
 494         } else {
 495             setEnabled (dialog_->input_space_below, !lv_->buffer()->isReadonly());
 496            setEnabled (dialog_->choice_value_space_below, !lv_->buffer()->isReadonly());
 497            int const default_unit = 8;
 498            if (strip(fl_get_input(dialog_->input_space_below)).empty())
 499                        fl_set_choice(dialog_->choice_value_space_below,
 500                                      default_unit);
 501         }
 502     }
 503
 504     if (fl_get_choice (dialog_->choice_linespacing) == 5)
 505         setEnabled (dialog_->input_linespacing, true);
 506     else {
 507         setEnabled (dialog_->input_linespacing, false);
 508         fl_set_input (dialog_->input_linespacing, "");
 509     }
 510
 511     double spacing(strToDbl(fl_get_input(dialog_->input_linespacing)));
 512
 513     if (fl_get_choice (dialog_->choice_linespacing) == 5
 514         && int(spacing) == 0)
 515         valid = false;
 516
 517     return valid;
 518 }