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