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