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