src/frontends/qt4/GuiSymbols.cpp

   1 /**
   2  * \file GuiSymbols.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 "GuiSymbols.h"
  14
  15 #include "GuiApplication.h"
  16 #include "GuiView.h"
  17 #include "qt_helpers.h"
  18
  19 #include "Buffer.h"
  20 #include "BufferParams.h"
  21 #include "BufferView.h"
  22 #include "Encoding.h"
  23 #include "FuncRequest.h"
  24
  25 #include "support/gettext.h"
  26
  27 #include <QChar>
  28 #include <QPixmap>
  29 #include <QListWidgetItem>
  30 #include <QString>
  31
  32 using namespace std;
  33
  34 namespace lyx {
  35 namespace frontend {
  36
  37
  38 namespace {
  39
  40 /// name of unicode block, start and end code point
  41 struct UnicodeBlocks {
  42         QString name;
  43         char_type start;
  44         char_type end;
  45 };
  46
  47
  48 /// all unicode blocks with start and end code point
  49 UnicodeBlocks unicode_blocks[] = {
  50         { N_("Basic Latin"), 0x0000, 0x007f },
  51         { N_("Latin-1 Supplement"), 0x0080, 0x00ff },
  52         { N_("Latin Extended-A"), 0x0100, 0x017f },
  53         { N_("Latin Extended-B"), 0x0180, 0x024f },
  54         { N_("IPA Extensions"), 0x0250, 0x02af },
  55         { N_("Spacing Modifier Letters"), 0x02b0, 0x02ff },
  56         { N_("Combining Diacritical Marks"), 0x0300, 0x036f },
  57         { N_("Greek"), 0x0370, 0x03ff },
  58         { N_("Cyrillic"), 0x0400, 0x04ff },
  59         { N_("Armenian"), 0x0530, 0x058f },
  60         { N_("Hebrew"), 0x0590, 0x05ff },
  61         { N_("Arabic"), 0x0600, 0x06ff },
  62         { N_("Devanagari"), 0x0900, 0x097f },
  63         { N_("Bengali"), 0x0980, 0x09ff },
  64         { N_("Gurmukhi"), 0x0a00, 0x0a7f },
  65         { N_("Gujarati"), 0x0a80, 0x0aff },
  66         { N_("Oriya"), 0x0b00, 0x0b7f },
  67         { N_("Tamil"), 0x0b80, 0x0bff },
  68         { N_("Telugu"), 0x0c00, 0x0c7f },
  69         { N_("Kannada"), 0x0c80, 0x0cff },
  70         { N_("Malayalam"), 0x0d00, 0x0d7f },
  71         { N_("Thai"), 0x0e00, 0x0e7f },
  72         { N_("Lao"), 0x0e80, 0x0eff },
  73         { N_("Tibetan"), 0x0f00, 0x0fbf },
  74         { N_("Georgian"), 0x10a0, 0x10ff },
  75         { N_("Hangul Jamo"), 0x1100, 0x11ff },
  76         { N_("Phonetic Extensions"), 0x1d00, 0x1d7f },
  77         { N_("Latin Extended Additional"), 0x1e00, 0x1eff },
  78         { N_("Greek Extended"), 0x1f00, 0x1fff },
  79         { N_("General Punctuation"), 0x2000, 0x206f },
  80         { N_("Superscripts and Subscripts"), 0x2070, 0x209f },
  81         { N_("Currency Symbols"), 0x20a0, 0x20cf },
  82         { N_("Combining Diacritical Marks for Symbols"), 0x20d0, 0x20ff },
  83         { N_("Letterlike Symbols"), 0x2100, 0x214f },
  84         { N_("Number Forms"), 0x2150, 0x218f },
  85         { N_("Arrows"), 0x2190, 0x21ff },
  86         { N_("Mathematical Operators"), 0x2200, 0x22ff },
  87         { N_("Miscellaneous Technical"), 0x2300, 0x23ff },
  88         { N_("Control Pictures"), 0x2400, 0x243f },
  89         { N_("Optical Character Recognition"), 0x2440, 0x245f },
  90         { N_("Enclosed Alphanumerics"), 0x2460, 0x24ff },
  91         { N_("Box Drawing"), 0x2500, 0x257f },
  92         { N_("Block Elements"), 0x2580, 0x259f },
  93         { N_("Geometric Shapes"), 0x25a0, 0x25ff },
  94         { N_("Miscellaneous Symbols"), 0x2600, 0x26ff },
  95         { N_("Dingbats"), 0x2700, 0x27bf },
  96         { N_("Miscellaneous Mathematical Symbols-A"), 0x27c0, 0x27ef },
  97         { N_("CJK Symbols and Punctuation"), 0x3000, 0x303f },
  98         { N_("Hiragana"), 0x3040, 0x309f },
  99         { N_("Katakana"), 0x30a0, 0x30ff },
 100         { N_("Bopomofo"), 0x3100, 0x312f },
 101         { N_("Hangul Compatibility Jamo"), 0x3130, 0x318f },
 102         { N_("Kanbun"), 0x3190, 0x319f },
 103         { N_("Enclosed CJK Letters and Months"), 0x3200, 0x32ff },
 104         { N_("CJK Compatibility"), 0x3300, 0x33ff },
 105         { N_("CJK Unified Ideographs"), 0x4e00, 0x9fa5 },
 106         { N_("Hangul Syllables"), 0xac00, 0xd7a3 },
 107         { N_("High Surrogates"), 0xd800, 0xdb7f },
 108         { N_("Private Use High Surrogates"), 0xdb80, 0xdbff },
 109         { N_("Low Surrogates"), 0xdc00, 0xdfff },
 110         { N_("Private Use Area"), 0xe000, 0xf8ff },
 111         { N_("CJK Compatibility Ideographs"), 0xf900, 0xfaff },
 112         { N_("Alphabetic Presentation Forms"), 0xfb00, 0xfb4f },
 113         { N_("Arabic Presentation Forms-A"), 0xfb50, 0xfdff },
 114         { N_("Combining Half Marks"), 0xfe20, 0xfe2f },
 115         { N_("CJK Compatibility Forms"), 0xfe30, 0xfe4f },
 116         { N_("Small Form Variants"), 0xfe50, 0xfe6f },
 117         { N_("Arabic Presentation Forms-B"), 0xfe70, 0xfeff },
 118         { N_("Halfwidth and Fullwidth Forms"), 0xff00, 0xffef },
 119         { N_("Specials"), 0xfff0, 0xffff },
 120         { N_("Linear B Syllabary"), 0x10000, 0x1007f },
 121         { N_("Linear B Ideograms"), 0x10080, 0x100ff },
 122         { N_("Aegean Numbers"), 0x10100, 0x1013f },
 123         { N_("Ancient Greek Numbers"), 0x10140, 0x1018f },
 124         { N_("Old Italic"), 0x10300, 0x1032f },
 125         { N_("Gothic"), 0x10330, 0x1034f },
 126         { N_("Ugaritic"), 0x10380, 0x1039f },
 127         { N_("Old Persian"), 0x103a0, 0x103df },
 128         { N_("Deseret"), 0x10400, 0x1044f },
 129         { N_("Shavian"), 0x10450, 0x1047f },
 130         { N_("Osmanya"), 0x10480, 0x104af },
 131         { N_("Cypriot Syllabary"), 0x10800, 0x1083f },
 132         { N_("Kharoshthi"), 0x10a00, 0x10a5f },
 133         { N_("Byzantine Musical Symbols"), 0x1d000, 0x1d0ff },
 134         { N_("Musical Symbols"), 0x1d100, 0x1d1ff },
 135         { N_("Ancient Greek Musical Notation"), 0x1d200, 0x1d24f },
 136         { N_("Tai Xuan Jing Symbols"), 0x1d300, 0x1d35f },
 137         { N_("Mathematical Alphanumeric Symbols"), 0x1d400, 0x1d7ff },
 138         { N_("CJK Unified Ideographs Extension B"), 0x20000, 0x2a6d6 },
 139         { N_("CJK Compatibility Ideographs Supplement"), 0x2f800, 0x2fa1f },
 140         { N_("Tags"), 0xe0000, 0xe007f },
 141         { N_("Variation Selectors Supplement"), 0xe0100, 0xe01ef },
 142         { N_("Supplementary Private Use Area-A"), 0xf0000, 0xe01ef },
 143         { N_("Supplementary Private Use Area-B"), 0x100000, 0x10ffff }
 144 };
 145
 146 const int no_blocks = sizeof(unicode_blocks) / sizeof(UnicodeBlocks);
 147
 148
 149 } // namespace anon
 150
 151
 152 GuiSymbols::GuiSymbols(GuiView & lv)
 153         : DialogView(lv, "symbols", qt_("Symbols")), encoding_("ascii")
 154 {
 155         setupUi(this);
 156
 157         setFocusProxy(symbolsLW);
 158
 159         symbolsLW->setViewMode(QListView::IconMode);
 160         symbolsLW->setUniformItemSizes(true);
 161         // increase the display size of the symbols a bit
 162         QFont font= symbolsLW->font();
 163         int size = font.pointSize() + 3;
 164         font.setPointSize(size);
 165         symbolsLW->setFont(font);
 166 }
 167
 168
 169 void GuiSymbols::updateView()
 170 {
 171         chosenLE->clear();
 172
 173         string new_encoding = bufferview()->cursor().getEncoding()->name();
 174         if (buffer().params().inputenc != "auto" &&
 175             buffer().params().inputenc != "default")
 176                 new_encoding = buffer().params().encoding().name();
 177         if (new_encoding == encoding_)
 178                 // everything up to date
 179                 return;
 180         if (!new_encoding.empty())
 181                 encoding_ = new_encoding;
 182         bool const utf8 = toqstr(encoding_).startsWith("utf8");
 183         if (utf8)
 184                 categoryFilterCB->setChecked(false);
 185         categoryFilterCB->setEnabled(!utf8);
 186         updateSymbolList();
 187 }
 188
 189
 190 void GuiSymbols::enableView(bool enable)
 191 {
 192         chosenLE->setEnabled(enable);
 193         okPB->setEnabled(enable);
 194         applyPB->setEnabled(enable);
 195 }
 196
 197
 198 void GuiSymbols::on_applyPB_clicked()
 199 {
 200         dispatchParams();
 201 }
 202
 203
 204 void GuiSymbols::on_okPB_clicked()
 205 {
 206         dispatchParams();
 207         hide();
 208 }
 209
 210
 211 void GuiSymbols::on_closePB_clicked()
 212 {
 213         hide();
 214 }
 215
 216
 217 void GuiSymbols::on_symbolsLW_itemActivated(QListWidgetItem *)
 218 {
 219         on_okPB_clicked();
 220 }
 221
 222
 223 void GuiSymbols::on_chosenLE_textChanged(QString const & text)
 224 {
 225         bool const empty_sel = text.isEmpty();
 226         okPB->setEnabled(!empty_sel);
 227         applyPB->setEnabled(!empty_sel);
 228 }
 229
 230
 231 void GuiSymbols::on_chosenLE_returnPressed()
 232 {
 233         on_okPB_clicked();
 234 }
 235
 236
 237 void GuiSymbols::on_symbolsLW_itemClicked(QListWidgetItem * item)
 238 {
 239         QString const text = item->text();
 240         if (text.isEmpty())
 241                 return;
 242         if (chosenLE->isEnabled())
 243                 chosenLE->insert(text);
 244         if (categoryFilterCB->isChecked()) {
 245                 QString const category = getBlock(text.data()->unicode());
 246                 categoryCO->setCurrentIndex(categoryCO->findText(category));
 247         }
 248 }
 249
 250
 251 void GuiSymbols::on_categoryCO_activated(QString const & text)
 252 {
 253         if (!categoryFilterCB->isChecked())
 254                 updateSymbolList(false);
 255         else if (used_blocks.find(text) != used_blocks.end())
 256                 symbolsLW->scrollToItem(used_blocks[text],
 257                         QAbstractItemView::PositionAtTop);
 258 }
 259
 260
 261 void GuiSymbols::on_categoryFilterCB_toggled(bool on)
 262 {
 263         updateSymbolList(on);
 264         if (on) {
 265                 QString const category = categoryCO->currentText();
 266                 if (used_blocks.find(category) != used_blocks.end())
 267                         symbolsLW->scrollToItem(used_blocks[category],
 268                                 QAbstractItemView::PositionAtTop);
 269         }
 270 }
 271
 272
 273 void GuiSymbols::updateSymbolList(bool update_combo)
 274 {
 275         QString category = categoryCO->currentText();
 276         bool const nocategory = category.isEmpty();
 277         char_type range_start = 0x0000;
 278         char_type range_end = 0x110000;
 279         symbolsLW->clear();
 280         if (update_combo) {
 281                 used_blocks.clear();
 282                 categoryCO->clear();
 283         }
 284         bool const show_all = categoryFilterCB->isChecked();
 285
 286         if (symbols_.empty() || update_combo)
 287                 symbols_ = encodings.getFromLyXName(encoding_)->getSymbolsList();
 288
 289         if (!show_all) {
 290                 for (int i = 0 ; i < no_blocks; ++i)
 291                         if (unicode_blocks[i].name == category) {
 292                                 range_start = unicode_blocks[i].start;
 293                                 range_end = unicode_blocks[i].end;
 294                                 break;
 295                         }
 296         }
 297
 298         static char codeName[10];
 299         static QString const strCharacter = qt_("Character: ");
 300         static QString const strCodePoint = qt_("Code Point: ");
 301
 302         SymbolsList::const_iterator const end = symbols_.end();
 303         for (SymbolsList::const_iterator it = symbols_.begin(); it != end; ++it) {
 304                 char_type c = *it;
 305                 if (!update_combo && !show_all && (c <= range_start || c >= range_end))
 306                         continue;
 307 #if QT_VERSION >= 0x040300
 308                 QChar::Category const cat = QChar::category(uint(c));
 309 #else
 310                 QChar const qc = uint(c);
 311                 QChar::Category const cat = qc.category();
 312 #endif
 313                 // we do not want control or space characters
 314                 if (cat == QChar::Other_Control || cat == QChar::Separator_Space)
 315                         continue;
 316                 QListWidgetItem * lwi = new QListWidgetItem(toqstr(c));
 317                 if (show_all || c >= range_start && c <= range_end) {
 318                         sprintf(codeName, "0x%04x", c);
 319                         lwi->setTextAlignment(Qt::AlignCenter);
 320                         lwi->setToolTip(strCharacter + toqstr(c) + '\n'
 321                                 + strCodePoint + QLatin1String(codeName));
 322                         symbolsLW->addItem(lwi);
 323                 }
 324                 if (update_combo) {
 325                         QString block = getBlock(c);
 326                         if (category.isEmpty())
 327                                 category = block;
 328                         if (used_blocks.find(block) == used_blocks.end())
 329                                 used_blocks[block] = lwi;
 330                 }
 331         }
 332
 333         if (update_combo) {
 334                 // update category combo
 335                 for (UsedBlocks::iterator it = used_blocks.begin();
 336                      it != used_blocks.end(); ++it) {
 337                         categoryCO->addItem(it->first);
 338                 }
 339         }
 340
 341         int old = categoryCO->findText(category);
 342         if (old != -1)
 343                 categoryCO->setCurrentIndex(old);
 344         // update again in case the combo has not yet been filled
 345         // on first cycle (at dialog initialization)
 346         if (nocategory && !category.isEmpty())
 347                 updateSymbolList();
 348 }
 349
 350
 351 QString GuiSymbols::getBlock(char_type c) const
 352 {
 353         int i = 0;
 354         while (c > unicode_blocks[i].end && i < no_blocks)
 355                 ++i;
 356         if (!unicode_blocks[i].name.isEmpty())
 357                 return unicode_blocks[i].name;
 358         return QString();
 359 }
 360
 361
 362 void GuiSymbols::dispatchParams()
 363 {
 364         dispatch(FuncRequest(getLfun(), fromqstr(chosenLE->text())));
 365 }
 366
 367
 368 Dialog * createGuiSymbols(GuiView & lv)
 369 {
 370         return new GuiSymbols(lv);
 371 }
 372
 373
 374 } // namespace frontend
 375 } // namespace lyx
 376
 377 #include "GuiSymbols_moc.cpp"