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 #include <QSettings>
  38 #include <QVariant>
  39
  40 #include <sstream>
  41
  42 using namespace std;
  43
  44 namespace lyx {
  45 namespace frontend {
  46
  47 GuiParagraph::GuiParagraph(GuiView & lv)
  48         : DialogView(lv, "paragraph", qt_("Paragraph Settings"))
  49 {
  50         setupUi(this);
  51
  52         connect(alignDefaultRB, SIGNAL(clicked()), this, SLOT(changed()));
  53         connect(alignJustRB, SIGNAL(clicked()), this, SLOT(changed()));
  54         connect(alignLeftRB, SIGNAL(clicked()), this, SLOT(changed()));
  55         connect(alignRightRB, SIGNAL(clicked()), this, SLOT(changed()));
  56         connect(alignCenterRB, SIGNAL(clicked()), this, SLOT(changed()));
  57         connect(linespacing, SIGNAL(activated(int)), this, SLOT(changed()));
  58         connect(linespacingValue, SIGNAL(textChanged(QString)),
  59                 this, SLOT(changed()));
  60         connect(indentCB, SIGNAL(clicked()), this, SLOT(changed()));
  61         connect(labelWidth, SIGNAL(textChanged(QString)),
  62                 this, SLOT(changed()));
  63
  64 #ifdef Q_WS_MACX
  65         // On Mac it's common to have tool windows which are always in the
  66         // foreground and are hidden when the main window is not focused.
  67         setWindowFlags(Qt::Tool);
  68         synchronizedViewCB->setChecked(true);
  69         closePB->setText(qt_("&Cancel"));
  70 #else
  71         synchronizedViewCB->setChecked(false);
  72 #endif
  73
  74         on_synchronizedViewCB_toggled();
  75         linespacingValue->setValidator(new QDoubleValidator(linespacingValue));
  76
  77         labelWidth->setWhatsThis(qt_(
  78                 "As described in the User Guide, the width of"
  79                 " this text determines the width of the label part"
  80                 " of each item in environments like List and"
  81                 " Description.\n"
  82                 "\n"
  83                 " Normally, you won't need to set this,"
  84                 " since the largest label width of all the"
  85                 " items is used."
  86         ));
  87
  88         radioMap_[LYX_ALIGN_LAYOUT] = alignDefaultRB;
  89         radioMap_[LYX_ALIGN_BLOCK]  = alignJustRB;
  90         radioMap_[LYX_ALIGN_LEFT]   = alignLeftRB;
  91         radioMap_[LYX_ALIGN_RIGHT]  = alignRightRB;
  92         radioMap_[LYX_ALIGN_CENTER] = alignCenterRB;
  93
  94         alignDefaultLabel_ = alignDefaultRB->text();
  95 }
  96
  97
  98 void GuiParagraph::on_linespacing_activated(int index)
  99 {
 100         linespacingValue->setEnabled(index == 4);
 101 }
 102
 103
 104 void GuiParagraph::checkAlignmentRadioButtons()
 105 {
 106         static std::map<LyXAlignment, QString> labelMap_;
 107         if (labelMap_.empty()) {
 108                 labelMap_[LYX_ALIGN_BLOCK]  = qt_("Justified");
 109                 labelMap_[LYX_ALIGN_LEFT]   = qt_("Left");
 110                 labelMap_[LYX_ALIGN_RIGHT]  = qt_("Right");
 111                 labelMap_[LYX_ALIGN_CENTER] = qt_("Center");
 112         }
 113
 114         RadioMap::iterator it = radioMap_.begin();
 115         for (; it != radioMap_.end(); ++it) {
 116                 LyXAlignment const align = it->first;
 117                 it->second->setEnabled(align & alignPossible());
 118         }
 119         if (haveMultiParSelection())
 120                 alignDefaultRB->setText(alignDefaultLabel_);
 121         else
 122                 alignDefaultRB->setText(alignDefaultLabel_ + " ("
 123                         + labelMap_[alignDefault()] + ")");
 124 }
 125
 126
 127 void GuiParagraph::alignmentToRadioButtons(LyXAlignment align)
 128 {
 129         RadioMap::const_iterator it = radioMap_.begin();
 130         for (;it != radioMap_.end(); ++it) {
 131                 it->second->blockSignals(true);
 132                 it->second->setChecked(align == it->first);
 133                 it->second->blockSignals(false);
 134         }
 135 }
 136
 137
 138 LyXAlignment GuiParagraph::getAlignmentFromDialog() const
 139 {
 140         LyXAlignment alignment = LYX_ALIGN_NONE;
 141         RadioMap::const_iterator it = radioMap_.begin();
 142         for (; it != radioMap_.end(); ++it) {
 143                 if (it->second->isChecked()) {
 144                         alignment = it->first;
 145                         break;
 146                 }
 147         }
 148         return alignment;
 149 }
 150
 151
 152 void GuiParagraph::on_synchronizedViewCB_toggled()
 153 {
 154         bool in_sync = synchronizedViewCB->isChecked();
 155         restorePB->setEnabled(!in_sync);
 156         applyPB->setEnabled(!in_sync);
 157         okPB->setEnabled(!in_sync);
 158         if (!in_sync)
 159                 closePB->setText(qt_("&Cancel"));
 160         else
 161                 closePB->setText(qt_("&Close"));
 162 }
 163
 164
 165 void GuiParagraph::changed()
 166 {
 167         if (synchronizedViewCB->isChecked())
 168                 on_applyPB_clicked();
 169 }
 170
 171
 172 void GuiParagraph::on_applyPB_clicked()
 173 {
 174         applyView();
 175 }
 176
 177
 178 void GuiParagraph::on_okPB_clicked()
 179 {
 180         applyView();
 181         hide();
 182 }
 183
 184
 185 void GuiParagraph::on_closePB_clicked()
 186 {
 187         hide();
 188 }
 189
 190
 191 void GuiParagraph::on_restorePB_clicked()
 192 {
 193         updateView();
 194 }
 195
 196
 197 void GuiParagraph::applyView()
 198 {
 199         if (haveMultiParSelection()) {
 200                 // FIXME: in case of multi-paragraph selection, it would be nice to
 201                 // initialise the parameters that are common to all paragraphs.
 202                 params_ = ParagraphParameters();
 203         } else {
 204                 params_ = bufferview()->cursor().innerParagraph().params();
 205         }
 206
 207         params_.align(getAlignmentFromDialog());
 208
 209         // get spacing
 210         Spacing::Space ls = Spacing::Default;
 211         string other;
 212         switch (linespacing->currentIndex()) {
 213         case 0:
 214                 ls = Spacing::Default;
 215                 break;
 216         case 1:
 217                 ls = Spacing::Single;
 218                 break;
 219         case 2:
 220                 ls = Spacing::Onehalf;
 221                 break;
 222         case 3:
 223                 ls = Spacing::Double;
 224                 break;
 225         case 4:
 226                 ls = Spacing::Other;
 227                 other = fromqstr(linespacingValue->text());
 228                 break;
 229         }
 230
 231         Spacing const spacing(ls, other);
 232         params_.spacing(spacing);
 233
 234         // label width
 235         params_.labelWidthString(qstring_to_ucs4(labelWidth->text()));
 236         // indendation
 237         params_.noindent(!indentCB->isChecked());
 238
 239         dispatchParams();
 240 }
 241
 242
 243 void GuiParagraph::updateView()
 244 {
 245         on_synchronizedViewCB_toggled();
 246
 247         ParagraphParameters const & pp = params();
 248
 249         // label width
 250         docstring const & labelwidth = pp.labelWidthString();
 251         // FIXME We should not compare translated strings
 252         if (labelwidth != _("Senseless with this layout!")) {
 253                 labelwidthGB->setEnabled(true);
 254                 labelWidth->setText(toqstr(labelwidth));
 255         } else {
 256                 labelwidthGB->setEnabled(false);
 257                 labelWidth->setText(QString());
 258         }
 259
 260         // alignment
 261         checkAlignmentRadioButtons();
 262         alignmentToRadioButtons(pp.align());
 263
 264         //indentation
 265         bool const canindent = canIndent();
 266         indentCB->setEnabled(canindent);
 267         indentCB->setChecked(canindent && !pp.noindent());
 268
 269         // linespacing
 270         int ls;
 271         Spacing const & space = pp.spacing();
 272         switch (space.getSpace()) {
 273         case Spacing::Single:
 274                 ls = 1;
 275                 break;
 276         case Spacing::Onehalf:
 277                 ls = 2;
 278                 break;
 279         case Spacing::Double:
 280                 ls = 3;
 281                 break;
 282         case Spacing::Other:
 283                 ls = 4;
 284                 break;
 285         default:
 286                 ls = 0;
 287                 break;
 288         }
 289         linespacing->setCurrentIndex(ls);
 290         if (space.getSpace() == Spacing::Other) {
 291                 linespacingValue->setText(toqstr(space.getValueAsString()));
 292                 linespacingValue->setEnabled(true);
 293         } else {
 294                 linespacingValue->setText(QString());
 295                 linespacingValue->setEnabled(false);
 296         }
 297 }
 298
 299
 300 void GuiParagraph::enableView(bool enable)
 301 {
 302         indentCB->setEnabled(enable);
 303         linespacing->setEnabled(enable);
 304         labelWidth->setEnabled(enable);
 305         synchronizedViewCB->setEnabled(enable);
 306         applyPB->setEnabled(enable);
 307         restorePB->setEnabled(enable);
 308         if (!enable)
 309                 synchronizedViewCB->setChecked(true);
 310         RadioMap::const_iterator it = radioMap_.begin();
 311         for (; it != radioMap_.end(); ++it)
 312                 it->second->setEnabled(enable);
 313 }
 314
 315
 316 ParagraphParameters const & GuiParagraph::params() const
 317 {
 318         if (haveMultiParSelection()) {
 319                 // FIXME: in case of multi-paragraph selection, it would be nice to
 320                 // initialise the parameters that are common to all paragraphs.
 321                 params_ = ParagraphParameters();
 322                 return params_;
 323         }
 324         return bufferview()->cursor().innerParagraph().params();
 325 }
 326
 327
 328 void GuiParagraph::dispatchParams()
 329 {
 330         ostringstream data;
 331         params_.write(data);
 332         FuncRequest const fr(getLfun(), data.str());
 333         dispatch(fr);
 334 }
 335
 336
 337 bool GuiParagraph::haveMultiParSelection() const
 338 {
 339         Cursor const & cur = bufferview()->cursor();
 340         return cur.selection() && cur.selBegin().pit() != cur.selEnd().pit();
 341 }
 342
 343
 344 bool GuiParagraph::canIndent() const
 345 {
 346         return buffer().params().paragraph_separation
 347                 == BufferParams::ParagraphIndentSeparation;
 348 }
 349
 350
 351 LyXAlignment GuiParagraph::alignPossible() const
 352 {
 353         return bufferview()->cursor().innerParagraph().layout().alignpossible;
 354 }
 355
 356
 357 LyXAlignment GuiParagraph::alignDefault() const
 358 {
 359         return bufferview()->cursor().innerParagraph().layout().align;
 360 }
 361
 362
 363 void GuiParagraph::saveSession() const
 364 {
 365         Dialog::saveSession();
 366         QSettings settings;
 367         settings.setValue(sessionKey() + "/autoapply", synchronizedViewCB->isChecked());
 368 }
 369
 370
 371 void GuiParagraph::restoreSession()
 372 {
 373         Dialog::restoreSession();
 374         QSettings settings;
 375         synchronizedViewCB->setChecked(
 376                 settings.value(sessionKey() + "/autoapply").toBool());
 377 }
 378
 379
 380 Dialog * createGuiParagraph(GuiView & lv)
 381 {
 382         return new GuiParagraph(lv);
 383 }
 384
 385
 386 } // namespace frontend
 387 } // namespace lyx
 388
 389 #include "GuiParagraph_moc.cpp"