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