src/frontends/qt4/GuiParagraph.cpp

   1 /**
   2  * \file GuiParagraph.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Edwin Leuven
   7  * \author Richard Heck
   8  * \author Abdelrazak Younes
   9  * \author Angus Leeming
  10  *
  11  * Full author contact details are available in file CREDITS.
  12  */
  13
  14 #include <config.h>
  15
  16 #include "GuiParagraph.h"
  17
  18 #include "qt_helpers.h"
  19
  20 #include "Buffer.h"
  21 #include "BufferParams.h"
  22 #include "BufferView.h"
  23 #include "Cursor.h"
  24 #include "FuncRequest.h"
  25 #include "GuiView.h"
  26 #include "Lexer.h"
  27 #include "Paragraph.h"
  28 #include "ParagraphParameters.h"
  29 #include "Spacing.h"
  30
  31 #include "support/debug.h"
  32 #include "support/gettext.h"
  33
  34 #include <QCheckBox>
  35 #include <QLineEdit>
  36 #include <QPushButton>
  37
  38 #include <sstream>
  39
  40 using namespace std;
  41
  42 namespace lyx {
  43 namespace frontend {
  44
  45 GuiParagraph::GuiParagraph(GuiView & lv)
  46         : DialogView(lv, "paragraph", qt_("Paragraph Settings"))
  47 {
  48         setupUi(this);
  49
  50         connect(alignDefaultRB, SIGNAL(clicked()), this, SLOT(changed()));
  51         connect(alignJustRB, SIGNAL(clicked()), this, SLOT(changed()));
  52         connect(alignLeftRB, SIGNAL(clicked()), this, SLOT(changed()));
  53         connect(alignRightRB, SIGNAL(clicked()), this, SLOT(changed()));
  54         connect(alignCenterRB, SIGNAL(clicked()), this, SLOT(changed()));
  55         connect(linespacing, SIGNAL(activated(int)), this, SLOT(changed()));
  56         connect(linespacingValue, SIGNAL(textChanged(QString)),
  57                 this, SLOT(changed()));
  58         connect(indentCB, SIGNAL(clicked()), this, SLOT(changed()));
  59         connect(labelWidth, SIGNAL(textChanged(QString)),
  60                 this, SLOT(changed()));
  61
  62 #ifdef Q_WS_MACX
  63         // On Mac it's common to have tool windows which are always in the
  64         // foreground and are hidden when the main window is not focused.
  65         setWindowFlags(Qt::Tool);
  66         synchronizedViewCB->setChecked(true);
  67         closePB->setText(qt_("&Cancel"));
  68 #else
  69         synchronizedViewCB->setChecked(false);
  70 #endif
  71
  72         on_synchronizedViewCB_toggled();
  73         linespacingValue->setValidator(new QDoubleValidator(linespacingValue));
  74
  75         labelWidth->setWhatsThis(qt_(
  76                 "As described in the User Guide, the width of"
  77                 " this text determines the width of the label part"
  78                 " of each item in environments like List and"
  79                 " Description.\n"
  80                 "\n"
  81                 " Normally, you won't need to set this,"
  82                 " since the largest label width of all the"
  83                 " items is used."
  84         ));
  85
  86         radioMap_[LYX_ALIGN_LAYOUT] = alignDefaultRB;
  87         radioMap_[LYX_ALIGN_BLOCK]  = alignJustRB;
  88         radioMap_[LYX_ALIGN_LEFT]   = alignLeftRB;
  89         radioMap_[LYX_ALIGN_RIGHT]  = alignRightRB;
  90         radioMap_[LYX_ALIGN_CENTER] = alignCenterRB;
  91
  92         alignDefaultLabel_ = alignDefaultRB->text();
  93 }
  94
  95
  96 void GuiParagraph::on_linespacing_activated(int index)
  97 {
  98         linespacingValue->setEnabled(index == 4);
  99 }
 100
 101
 102 void GuiParagraph::checkAlignmentRadioButtons()
 103 {
 104         static std::map<LyXAlignment, QString> labelMap_;
 105         if (labelMap_.empty()) {
 106                 labelMap_[LYX_ALIGN_BLOCK]  = qt_("Justified");
 107                 labelMap_[LYX_ALIGN_LEFT]   = qt_("Left");
 108                 labelMap_[LYX_ALIGN_RIGHT]  = qt_("Right");
 109                 labelMap_[LYX_ALIGN_CENTER] = qt_("Center");
 110         }
 111
 112         RadioMap::iterator it = radioMap_.begin();
 113         for (; it != radioMap_.end(); ++it) {
 114                 LyXAlignment const align = it->first;
 115                 it->second->setEnabled(align & alignPossible());
 116         }
 117         if (haveMultiParSelection())
 118                 alignDefaultRB->setText(alignDefaultLabel_);
 119         else
 120                 alignDefaultRB->setText(alignDefaultLabel_ + " ("
 121                         + labelMap_[alignDefault()] + ")");
 122 }
 123
 124
 125 void GuiParagraph::alignmentToRadioButtons(LyXAlignment align)
 126 {
 127         RadioMap::const_iterator it = radioMap_.begin();
 128         for (;it != radioMap_.end(); ++it) {
 129                 it->second->blockSignals(true);
 130                 it->second->setChecked(align == it->first);
 131                 it->second->blockSignals(false);
 132         }
 133 }
 134
 135
 136 LyXAlignment GuiParagraph::getAlignmentFromDialog()
 137 {
 138         LyXAlignment alignment = LYX_ALIGN_NONE;
 139         RadioMap::const_iterator it = radioMap_.begin();
 140         for (; it != radioMap_.end(); ++it) {
 141                 if (it->second->isChecked()) {
 142                         alignment = it->first;
 143                         break;
 144                 }
 145         }
 146         return alignment;
 147 }
 148
 149
 150 void GuiParagraph::on_synchronizedViewCB_toggled()
 151 {
 152         bool in_sync = synchronizedViewCB->isChecked();
 153         restorePB->setEnabled(!in_sync);
 154         applyPB->setEnabled(!in_sync);
 155         okPB->setEnabled(!in_sync);
 156         if (!in_sync)
 157                 closePB->setText(qt_("&Cancel"));
 158         else
 159                 closePB->setText(qt_("&Close"));
 160 }
 161
 162
 163 void GuiParagraph::changed()
 164 {
 165         if (synchronizedViewCB->isChecked())
 166                 on_applyPB_clicked();
 167 }
 168
 169
 170 void GuiParagraph::on_applyPB_clicked()
 171 {
 172         applyView();
 173 }
 174
 175
 176 void GuiParagraph::on_okPB_clicked()
 177 {
 178         applyView();
 179         hide();
 180 }
 181
 182
 183 void GuiParagraph::on_closePB_clicked()
 184 {
 185         hide();
 186 }
 187
 188
 189 void GuiParagraph::on_restorePB_clicked()
 190 {
 191         updateView();
 192 }
 193
 194
 195 void GuiParagraph::applyView()
 196 {
 197         ParagraphParameters & pp = params();
 198
 199         pp.align(getAlignmentFromDialog());
 200
 201         // get spacing
 202         Spacing::Space ls = Spacing::Default;
 203         string other;
 204         switch (linespacing->currentIndex()) {
 205         case 0:
 206                 ls = Spacing::Default;
 207                 break;
 208         case 1:
 209                 ls = Spacing::Single;
 210                 break;
 211         case 2:
 212                 ls = Spacing::Onehalf;
 213                 break;
 214         case 3:
 215                 ls = Spacing::Double;
 216                 break;
 217         case 4:
 218                 ls = Spacing::Other;
 219                 other = fromqstr(linespacingValue->text());
 220                 break;
 221         }
 222
 223         Spacing const spacing(ls, other);
 224         pp.spacing(spacing);
 225
 226         // label width
 227         pp.labelWidthString(qstring_to_ucs4(labelWidth->text()));
 228         // indendation
 229         pp.noindent(!indentCB->isChecked());
 230
 231         dispatchParams();
 232 }
 233
 234
 235 void GuiParagraph::updateView()
 236 {
 237         on_synchronizedViewCB_toggled();
 238
 239         ParagraphParameters const & pp = params();
 240
 241         // label width
 242         docstring const & labelwidth = pp.labelWidthString();
 243         // FIXME We should not compare translated strings
 244         if (labelwidth != _("Senseless with this layout!")) {
 245                 labelwidthGB->setEnabled(true);
 246                 labelWidth->setText(toqstr(labelwidth));
 247         } else {
 248                 labelwidthGB->setEnabled(false);
 249                 labelWidth->setText(QString());
 250         }
 251
 252         // alignment
 253         checkAlignmentRadioButtons();
 254         alignmentToRadioButtons(pp.align());
 255
 256         //indentation
 257         bool const canindent = canIndent();
 258         indentCB->setEnabled(canindent);
 259         indentCB->setChecked(canindent && !pp.noindent());
 260
 261         // linespacing
 262         int ls;
 263         Spacing const & space = pp.spacing();
 264         switch (space.getSpace()) {
 265         case Spacing::Single:
 266                 ls = 1;
 267                 break;
 268         case Spacing::Onehalf:
 269                 ls = 2;
 270                 break;
 271         case Spacing::Double:
 272                 ls = 3;
 273                 break;
 274         case Spacing::Other:
 275                 ls = 4;
 276                 break;
 277         default:
 278                 ls = 0;
 279                 break;
 280         }
 281         linespacing->setCurrentIndex(ls);
 282         if (space.getSpace() == Spacing::Other) {
 283                 linespacingValue->setText(toqstr(space.getValueAsString()));
 284                 linespacingValue->setEnabled(true);
 285         } else {
 286                 linespacingValue->setText(QString());
 287                 linespacingValue->setEnabled(false);
 288         }
 289 }
 290
 291
 292 void GuiParagraph::enableView(bool enable)
 293 {
 294         indentCB->setEnabled(enable);
 295         linespacing->setEnabled(enable);
 296         labelWidth->setEnabled(enable);
 297         synchronizedViewCB->setEnabled(enable);
 298         applyPB->setEnabled(enable);
 299         restorePB->setEnabled(enable);
 300         if (!enable)
 301                 synchronizedViewCB->setChecked(true);
 302         RadioMap::const_iterator it = radioMap_.begin();
 303         for (; it != radioMap_.end(); ++it)
 304                 it->second->setEnabled(enable);
 305 }
 306
 307
 308 ParagraphParameters & GuiParagraph::params()
 309 {
 310         if (haveMultiParSelection()) {
 311                 multiparsel_ = ParagraphParameters();
 312                 // FIXME: It would be nice to initialise the parameters that
 313                 // are common to all paragraphs.
 314                 return multiparsel_;
 315         }
 316
 317         return bufferview()->cursor().innerParagraph().params();
 318 }
 319
 320
 321 ParagraphParameters const & GuiParagraph::params() const
 322 {
 323         return bufferview()->cursor().innerParagraph().params();
 324 }
 325
 326
 327 void GuiParagraph::dispatchParams()
 328 {
 329         if (haveMultiParSelection()) {
 330                 ostringstream data;
 331                 multiparsel_.write(data);
 332                 FuncRequest const fr(getLfun(), data.str());
 333                 dispatch(fr);
 334                 return;
 335         }
 336
 337         bufferview()->updateMetrics();
 338         bufferview()->buffer().changed();
 339 }
 340
 341
 342 bool GuiParagraph::haveMultiParSelection()
 343 {
 344         Cursor cur = bufferview()->cursor();
 345         return cur.selection() && cur.selBegin().pit() != cur.selEnd().pit();
 346 }
 347
 348
 349 bool GuiParagraph::canIndent() const
 350 {
 351         return buffer().params().paragraph_separation
 352                 == BufferParams::ParagraphIndentSeparation;
 353 }
 354
 355
 356 LyXAlignment GuiParagraph::alignPossible() const
 357 {
 358         return bufferview()->cursor().innerParagraph().layout().alignpossible;
 359 }
 360
 361
 362 LyXAlignment GuiParagraph::alignDefault() const
 363 {
 364         return bufferview()->cursor().innerParagraph().layout().align;
 365 }
 366
 367
 368 Dialog * createGuiParagraph(GuiView & lv)
 369 {
 370         return new GuiParagraph(lv);
 371 }
 372
 373
 374 } // namespace frontend
 375 } // namespace lyx
 376
 377 #include "GuiParagraph_moc.cpp"