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