src/frontends/qt/GuiHSpace.cpp

   1 /**
   2  * \file GuiHSpace.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Jürgen Spitzmüller
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "GuiHSpace.h"
  14
  15 #include "LengthCombo.h"
  16 #include "qt_helpers.h"
  17 #include "Validator.h"
  18
  19 #include "Spacing.h"
  20
  21 #include "insets/InsetSpace.h"
  22
  23 #include "mathed/InsetMathSpace.h"
  24
  25 #include "support/gettext.h"
  26 #include "support/lstrings.h"
  27
  28 #include <QCheckBox>
  29 #include <QLineEdit>
  30 #include <QPushButton>
  31 #include <QValidator>
  32
  33 using namespace std;
  34
  35 namespace lyx {
  36 namespace frontend {
  37
  38 GuiHSpace::GuiHSpace(bool math_mode, QWidget * parent)
  39         : InsetParamsWidget(parent), math_mode_(math_mode)
  40 {
  41         setupUi(this);
  42
  43         spacingCO->clear();
  44         spacingCO->addItem(qt_("Normal Space"), "normal");
  45         spacingCO->addItem(qt_("Thin Space (1/6 em)"), "thinspace");
  46         spacingCO->addItem(qt_("Medium Space (2/9 em)"), "medspace");
  47         spacingCO->addItem(qt_("Thick Space (5/18 em)"), "thickspace");
  48         spacingCO->addItem(qt_("Negative Thin Space (−1/6 em)"), "negthinspace");
  49         spacingCO->addItem(qt_("Negative Medium Space (−2/9 em)"), "negmedspace");
  50         spacingCO->addItem(qt_("Negative Thick Space (−5/18 em)"), "negthickspace");
  51         spacingCO->addItem(qt_("Half Quad (1/2 em)"), "halfquad");
  52         spacingCO->addItem(qt_("Quad (1 em)"), "quad");
  53         spacingCO->addItem(qt_("Double Quad (2 em)"), "qquad");
  54         spacingCO->addItem(qt_("Horizontal Fill"), "hfill");
  55         if (!math_mode_)
  56                 spacingCO->addItem(qt_("Visible Space"), "visible");
  57         spacingCO->addItem(qt_("Custom"), "custom");
  58
  59 #if QT_VERSION < 0x050e00
  60         connect(spacingCO, SIGNAL(highlighted(QString)),
  61                 this, SLOT(changedSlot()));
  62 #else
  63         connect(spacingCO, SIGNAL(textHighlighted(QString)),
  64                 this, SLOT(changedSlot()));
  65 #endif
  66         connect(valueLE, SIGNAL(textChanged(QString)),
  67                 this, SLOT(changedSlot()));
  68         connect(spacingCO, SIGNAL(activated(int)),
  69                 this, SLOT(changedSlot()));
  70         connect(keepCB, SIGNAL(clicked()),
  71                 this, SLOT(changedSlot()));
  72         connect(unitCO, SIGNAL(selectionChanged(lyx::Length::UNIT)),
  73                 this, SLOT(changedSlot()));
  74         connect(fillPatternCO, SIGNAL(activated(int)),
  75                 this, SLOT(changedSlot()));
  76
  77         // Set up a signed (glue) length validator
  78         LengthValidator * v = new LengthValidator(valueLE);
  79         if (math_mode_)
  80                 v->setBottom(Length());
  81         else
  82                 v->setBottom(GlueLength());
  83         valueLE->setValidator(v);
  84
  85         // initialize the length validator
  86         addCheckedWidget(valueLE, valueL);
  87         enableWidgets();
  88 }
  89
  90
  91 void GuiHSpace::changedSlot()
  92 {
  93         enableWidgets();
  94         changed();
  95 }
  96
  97
  98 void GuiHSpace::enableWidgets() const
  99 {
 100         QString const selection = spacingCO->itemData(spacingCO->currentIndex()).toString();
 101         bool const custom = selection == "custom";
 102         valueLE->setEnabled(custom);
 103         if (custom)
 104                 valueLE->setFocus();
 105         valueL->setEnabled(custom);
 106         unitCO->setEnabled(custom);
 107         fillPatternCO->setEnabled(!math_mode_ && selection == "hfill");
 108         fillPatternL->setEnabled(!math_mode_ && selection == "hfill");
 109         bool const no_pattern = fillPatternCO->currentIndex() == 0 || math_mode_;
 110         bool const enable_keep =
 111                 selection == "normal" || selection == "halfquad"
 112                 || (selection == "hfill" && no_pattern) || custom;
 113         keepCB->setEnabled(enable_keep);
 114         keepL->setEnabled(enable_keep);
 115         // When Non-Breaking is disabled indicate that this is a non-breaking state
 116         // by enabling the check-box
 117         if (!enable_keep)
 118                 keepCB->setCheckState(Qt::Checked);
 119 }
 120
 121
 122 void GuiHSpace::paramsToDialog(Inset const * inset)
 123 {
 124         InsetSpaceParams const params = math_mode_
 125                 ? static_cast<InsetMathSpace const *>(inset)->params()
 126                 : static_cast<InsetSpace const *>(inset)->params();
 127
 128         QString item;
 129         int pattern = 0;
 130         bool protect = false;
 131         switch (params.kind) {
 132                 case InsetSpaceParams::NORMAL:
 133                         item = "normal";
 134                         break;
 135                 case InsetSpaceParams::PROTECTED:
 136                         item = "normal";
 137                         protect = true;
 138                         break;
 139                 case InsetSpaceParams::VISIBLE:
 140                         item = "visible";
 141                         protect = true;
 142                         break;
 143                 case InsetSpaceParams::THIN:
 144                         item = "thinspace";
 145                         break;
 146                 case InsetSpaceParams::MEDIUM:
 147                         item = "medspace";
 148                         break;
 149                 case InsetSpaceParams::THICK:
 150                         item = "thickspace";
 151                         break;
 152                 case InsetSpaceParams::NEGTHIN:
 153                         item = "negthinspace";
 154                         break;
 155                 case InsetSpaceParams::NEGMEDIUM:
 156                         item = "negmedspace";
 157                         break;
 158                 case InsetSpaceParams::NEGTHICK:
 159                         item = "negthickspace";
 160                         break;
 161                 case InsetSpaceParams::ENSKIP:
 162                         item = "halfquad";
 163                         break;
 164                 case InsetSpaceParams::ENSPACE:
 165                         item = "halfquad";
 166                         protect = true;
 167                         break;
 168                 case InsetSpaceParams::QUAD:
 169                         item = "quad";
 170                         break;
 171                 case InsetSpaceParams::QQUAD:
 172                         item = "qquad";
 173                         break;
 174                 case InsetSpaceParams::HFILL:
 175                         item = "hfill";
 176                         break;
 177                 case InsetSpaceParams::HFILL_PROTECTED:
 178                         item = "hfill";
 179                         protect = true;
 180                         break;
 181                 case InsetSpaceParams::DOTFILL:
 182                         item = "hfill";
 183                         pattern = 1;
 184                         break;
 185                 case InsetSpaceParams::HRULEFILL:
 186                         item = "hfill";
 187                         pattern = 2;
 188                         break;
 189                 case InsetSpaceParams::LEFTARROWFILL:
 190                         item = "hfill";
 191                         pattern = 3;
 192                         break;
 193                 case InsetSpaceParams::RIGHTARROWFILL:
 194                         item = "hfill";
 195                         pattern = 4;
 196                         break;
 197                 case InsetSpaceParams::UPBRACEFILL:
 198                         item = "hfill";
 199                         pattern = 5;
 200                         break;
 201                 case InsetSpaceParams::DOWNBRACEFILL:
 202                         item = "hfill";
 203                         pattern = 6;
 204                         break;
 205                 case InsetSpaceParams::CUSTOM:
 206                         item = "custom";
 207                         break;
 208                 case InsetSpaceParams::CUSTOM_PROTECTED:
 209                         item = "custom";
 210                         protect = true;
 211                         break;
 212         }
 213         spacingCO->setCurrentIndex(spacingCO->findData(item));
 214         fillPatternCO->setCurrentIndex(pattern);
 215         keepCB->setChecked(protect);
 216         if (item == "halfquad") {
 217                 keepCB->setToolTip(qt_("Insert the spacing even after a line break.\n"
 218                                        "Note that a protected Half Quad will be turned into\n"
 219                                        "a vertical space if used at the beginning of a paragraph!"));
 220         } else {
 221                 keepCB->setToolTip(qt_("Insert the spacing even after a line break"));
 222         }
 223         Length::UNIT const default_unit = Length::defaultUnit();
 224         if (item == "custom") {
 225                 string length = params.length.asString();
 226                 lengthToWidgets(valueLE, unitCO, length, default_unit);
 227         } else
 228                 lengthToWidgets(valueLE, unitCO, "", default_unit);
 229
 230         enableWidgets();
 231 }
 232
 233
 234 docstring GuiHSpace::dialogToParams() const
 235 {
 236         InsetSpaceParams params = math_mode_ ?
 237                 InsetSpaceParams(true) : InsetSpaceParams(false);
 238
 239         QString const item =
 240                 spacingCO->itemData(spacingCO->currentIndex()).toString();
 241
 242         if (item == "normal")
 243                 params.kind = keepCB->isChecked() ?
 244                         InsetSpaceParams::PROTECTED : InsetSpaceParams::NORMAL;
 245         else if (item == "thinspace")
 246                 params.kind = InsetSpaceParams::THIN;
 247         else if (item == "medspace")
 248                 params.kind = InsetSpaceParams::MEDIUM;
 249         else if (item == "thickspace")
 250                 params.kind = InsetSpaceParams::THICK;
 251         else if (item == "negthinspace")
 252                 params.kind = InsetSpaceParams::NEGTHIN;
 253         else if (item == "negmedspace")
 254                 params.kind = InsetSpaceParams::NEGMEDIUM;
 255         else if (item == "negthickspace")
 256                 params.kind = InsetSpaceParams::NEGTHICK;
 257         else if (item == "halfquad")
 258                 params.kind = keepCB->isChecked() ?
 259                         InsetSpaceParams::ENSPACE : InsetSpaceParams::ENSKIP;
 260         else if (item == "quad")
 261                         params.kind = InsetSpaceParams::QUAD;
 262         else if (item == "qquad")
 263                         params.kind = InsetSpaceParams::QQUAD;
 264         else if (item == "hfill") {
 265                 switch (fillPatternCO->currentIndex()) {
 266                 case 1:
 267                         params.kind = InsetSpaceParams::DOTFILL;
 268                         break;
 269                 case 2:
 270                         params.kind = InsetSpaceParams::HRULEFILL;
 271                         break;
 272                 case 3:
 273                         params.kind = InsetSpaceParams::LEFTARROWFILL;
 274                         break;
 275                 case 4:
 276                         params.kind = InsetSpaceParams::RIGHTARROWFILL;
 277                         break;
 278                 case 5:
 279                         params.kind = InsetSpaceParams::UPBRACEFILL;
 280                         break;
 281                 case 6:
 282                         params.kind = InsetSpaceParams::DOWNBRACEFILL;
 283                         break;
 284                 default:
 285                         if (keepCB->isChecked())
 286                                 params.kind = InsetSpaceParams::HFILL_PROTECTED;
 287                         else
 288                                 params.kind = InsetSpaceParams::HFILL;
 289                         break;
 290                 }
 291         } else if (item == "custom") {
 292                         params.kind = keepCB->isChecked() ?
 293                                 InsetSpaceParams::CUSTOM_PROTECTED : InsetSpaceParams::CUSTOM;
 294                         params.length = GlueLength(widgetsToLength(valueLE, unitCO));
 295         } else if (item == "visible")
 296                 params.kind = InsetSpaceParams::VISIBLE;
 297
 298         return from_ascii(InsetSpace::params2string(params));
 299 }
 300
 301
 302 bool GuiHSpace::checkWidgets(bool readonly) const
 303 {
 304         valueLE->setReadOnly(readonly);
 305         spacingCO->setEnabled(!readonly);
 306         spacingL->setEnabled(!readonly);
 307
 308         if (readonly) {
 309                 fillPatternCO->setEnabled(false);
 310                 fillPatternL->setEnabled(false);
 311                 keepCB->setEnabled(false);
 312                 keepL->setEnabled(false);
 313                 valueLE->setEnabled(false);
 314                 valueL->setEnabled(false);
 315                 unitCO->setEnabled(false);
 316         } else
 317                 enableWidgets();
 318
 319         if (!InsetParamsWidget::checkWidgets())
 320                 return false;
 321         return spacingCO->itemData(spacingCO->currentIndex()).toString() != "custom"
 322                 || !valueLE->text().isEmpty();
 323 }
 324
 325 } // namespace frontend
 326 } // namespace lyx
 327
 328
 329 #include "moc_GuiHSpace.cpp"