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
  24 #include "support/gettext.h"
  25
  26 #include <QChar>
  27 #include <QPixmap>
  28 #include <QListWidgetItem>
  29 #include <QString>
  30
  31 using namespace std;
  32
  33 namespace lyx {
  34 namespace frontend {
  35
  36
  37 namespace {
  38
  39 /// name of unicode block, start and end code point
  40 struct UnicodeBlocks {
  41         char const * name;
  42         char_type start;
  43         char_type end;
  44 };
  45
  46
  47 /// all unicode blocks with start and end code point
  48 UnicodeBlocks unicode_blocks[] = {
  49         { N_("Basic Latin"), 0x0000, 0x007f },
  50         { N_("Latin-1 Supplement"), 0x0080, 0x00ff },
  51         { N_("Latin Extended-A"), 0x0100, 0x017f },
  52         { N_("Latin Extended-B"), 0x0180, 0x024f },
  53         { N_("IPA Extensions"), 0x0250, 0x02af },
  54         { N_("Spacing Modifier Letters"), 0x02b0, 0x02ff },
  55         { N_("Combining Diacritical Marks"), 0x0300, 0x036f },
  56         { N_("Greek"), 0x0370, 0x03ff },
  57         { N_("Cyrillic"), 0x0400, 0x04ff },
  58         { N_("Armenian"), 0x0530, 0x058f },
  59         { N_("Hebrew"), 0x0590, 0x05ff },
  60         { N_("Arabic"), 0x0600, 0x06ff },
  61         { N_("Devanagari"), 0x0900, 0x097f },
  62         { N_("Bengali"), 0x0980, 0x09ff },
  63         { N_("Gurmukhi"), 0x0a00, 0x0a7f },
  64         { N_("Gujarati"), 0x0a80, 0x0aff },
  65         { N_("Oriya"), 0x0b00, 0x0b7f },
  66         { N_("Tamil"), 0x0b80, 0x0bff },
  67         { N_("Telugu"), 0x0c00, 0x0c7f },
  68         { N_("Kannada"), 0x0c80, 0x0cff },
  69         { N_("Malayalam"), 0x0d00, 0x0d7f },
  70         { N_("Thai"), 0x0e00, 0x0e7f },
  71         { N_("Lao"), 0x0e80, 0x0eff },
  72         { N_("Tibetan"), 0x0f00, 0x0fbf },
  73         { N_("Georgian"), 0x10a0, 0x10ff },
  74         { N_("Hangul Jamo"), 0x1100, 0x11ff },
  75         { N_("Phonetic Extensions"), 0x1d00, 0x1d7f },
  76         { N_("Latin Extended Additional"), 0x1e00, 0x1eff },
  77         { N_("Greek Extended"), 0x1f00, 0x1fff },
  78         { N_("General Punctuation"), 0x2000, 0x206f },
  79         { N_("Superscripts and Subscripts"), 0x2070, 0x209f },
  80         { N_("Currency Symbols"), 0x20a0, 0x20cf },
  81         { N_("Combining Diacritical Marks for Symbols"), 0x20d0, 0x20ff },
  82         { N_("Letterlike Symbols"), 0x2100, 0x214f },
  83         { N_("Number Forms"), 0x2150, 0x218f },
  84         { N_("Arrows"), 0x2190, 0x21ff },
  85         { N_("Mathematical Operators"), 0x2200, 0x22ff },
  86         { N_("Miscellaneous Technical"), 0x2300, 0x23ff },
  87         { N_("Control Pictures"), 0x2400, 0x243f },
  88         { N_("Optical Character Recognition"), 0x2440, 0x245f },
  89         { N_("Enclosed Alphanumerics"), 0x2460, 0x24ff },
  90         { N_("Box Drawing"), 0x2500, 0x257f },
  91         { N_("Block Elements"), 0x2580, 0x259f },
  92         { N_("Geometric Shapes"), 0x25a0, 0x25ff },
  93         { N_("Miscellaneous Symbols"), 0x2600, 0x26ff },
  94         { N_("Dingbats"), 0x2700, 0x27bf },
  95         { N_("Miscellaneous Mathematical Symbols-A"), 0x27c0, 0x27ef },
  96         { N_("CJK Symbols and Punctuation"), 0x3000, 0x303f },
  97         { N_("Hiragana"), 0x3040, 0x309f },
  98         { N_("Katakana"), 0x30a0, 0x30ff },
  99         { N_("Bopomofo"), 0x3100, 0x312f },
 100         { N_("Hangul Compatibility Jamo"), 0x3130, 0x318f },
 101         { N_("Kanbun"), 0x3190, 0x319f },
 102         { N_("Enclosed CJK Letters and Months"), 0x3200, 0x32ff },
 103         { N_("CJK Compatibility"), 0x3300, 0x33ff },
 104         { N_("CJK Unified Ideographs"), 0x4e00, 0x9fa5 },
 105         { N_("Hangul Syllables"), 0xac00, 0xd7a3 },
 106         { N_("High Surrogates"), 0xd800, 0xdb7f },
 107         { N_("Private Use High Surrogates"), 0xdb80, 0xdbff },
 108         { N_("Low Surrogates"), 0xdc00, 0xdfff },
 109         { N_("Private Use Area"), 0xe000, 0xf8ff },
 110         { N_("CJK Compatibility Ideographs"), 0xf900, 0xfaff },
 111         { N_("Alphabetic Presentation Forms"), 0xfb00, 0xfb4f },
 112         { N_("Arabic Presentation Forms-A"), 0xfb50, 0xfdff },
 113         { N_("Combining Half Marks"), 0xfe20, 0xfe2f },
 114         { N_("CJK Compatibility Forms"), 0xfe30, 0xfe4f },
 115         { N_("Small Form Variants"), 0xfe50, 0xfe6f },
 116         { N_("Arabic Presentation Forms-B"), 0xfe70, 0xfeff },
 117         { N_("Halfwidth and Fullwidth Forms"), 0xff00, 0xffef },
 118         { N_("Specials"), 0xfff0, 0xffff },
 119         { N_("Linear B Syllabary"), 0x10000, 0x1007f },
 120         { N_("Linear B Ideograms"), 0x10080, 0x100ff },
 121         { N_("Aegean Numbers"), 0x10100, 0x1013f },
 122         { N_("Ancient Greek Numbers"), 0x10140, 0x1018f },
 123         { N_("Old Italic"), 0x10300, 0x1032f },
 124         { N_("Gothic"), 0x10330, 0x1034f },
 125         { N_("Ugaritic"), 0x10380, 0x1039f },
 126         { N_("Old Persian"), 0x103a0, 0x103df },
 127         { N_("Deseret"), 0x10400, 0x1044f },
 128         { N_("Shavian"), 0x10450, 0x1047f },
 129         { N_("Osmanya"), 0x10480, 0x104af },
 130         { N_("Cypriot Syllabary"), 0x10800, 0x1083f },
 131         { N_("Kharoshthi"), 0x10a00, 0x10a5f },
 132         { N_("Byzantine Musical Symbols"), 0x1d000, 0x1d0ff },
 133         { N_("Musical Symbols"), 0x1d100, 0x1d1ff },
 134         { N_("Ancient Greek Musical Notation"), 0x1d200, 0x1d24f },
 135         { N_("Tai Xuan Jing Symbols"), 0x1d300, 0x1d35f },
 136         { N_("Mathematical Alphanumeric Symbols"), 0x1d400, 0x1d7ff },
 137         { N_("CJK Unified Ideographs Extension B"), 0x20000, 0x2a6d6 },
 138         { N_("CJK Compatibility Ideographs Supplement"), 0x2f800, 0x2fa1f },
 139         { N_("Tags"), 0xe0000, 0xe007f },
 140         { N_("Variation Selectors Supplement"), 0xe0100, 0xe01ef },
 141         { N_("Supplementary Private Use Area-A"), 0xf0000, 0xe01ef },
 142         { N_("Supplementary Private Use Area-B"), 0x100000, 0x10ffff }
 143 };
 144
 145 const int no_blocks = sizeof(unicode_blocks) / sizeof(UnicodeBlocks);
 146
 147
 148 QString getCodePoint(char_type c)
 149 {
 150         QString cp = QString::number(c, 16);
 151         while (cp.size() < 4)
 152                 cp.prepend('0');
 153         cp.prepend("0x");
 154         return cp;
 155 }
 156
 157 } // namespace anon
 158
 159
 160 GuiSymbols::GuiSymbols(GuiView & lv)
 161         : DialogView(lv, "symbols", qt_("Symbols")), encoding_("ascii")
 162 {
 163         setupUi(this);
 164
 165         setFocusProxy(symbolsLW);
 166
 167         symbolsLW->setViewMode(QListView::IconMode);
 168         symbolsLW->setUniformItemSizes(true);
 169         // increase the display size of the symbols a bit
 170         QFont font= symbolsLW->font();
 171         int size = font.pointSize() + 3;
 172         font.setPointSize(size);
 173         symbolsLW->setFont(font);
 174 }
 175
 176
 177 void GuiSymbols::updateView()
 178 {
 179         chosenLE->clear();
 180
 181         string new_encoding = bufferview()->cursor().getEncoding()->name();
 182         if (buffer().params().inputenc != "auto" &&
 183             buffer().params().inputenc != "default")
 184                 new_encoding = buffer().params().encoding().name();
 185         if (new_encoding == encoding_)
 186                 // everything up to date
 187                 return;
 188         if (!new_encoding.empty())
 189                 encoding_ = new_encoding;
 190         bool const utf8 = toqstr(encoding_).startsWith("utf8");
 191         if (utf8)
 192                 categoryFilterCB->setChecked(false);
 193         categoryFilterCB->setEnabled(!utf8);
 194         updateSymbolList();
 195 }
 196
 197
 198 void GuiSymbols::enableView(bool enable)
 199 {
 200         chosenLE->setEnabled(enable);
 201         okPB->setEnabled(enable);
 202         applyPB->setEnabled(enable);
 203 }
 204
 205
 206 void GuiSymbols::on_applyPB_clicked()
 207 {
 208         dispatchParams();
 209 }
 210
 211
 212 void GuiSymbols::on_okPB_clicked()
 213 {
 214         dispatchParams();
 215         hide();
 216 }
 217
 218
 219 void GuiSymbols::on_closePB_clicked()
 220 {
 221         hide();
 222 }
 223
 224
 225 void GuiSymbols::on_symbolsLW_itemActivated(QListWidgetItem *)
 226 {
 227         on_okPB_clicked();
 228 }
 229
 230
 231 void GuiSymbols::on_chosenLE_textChanged(QString const & text)
 232 {
 233         bool const empty_sel = text.isEmpty();
 234         okPB->setEnabled(!empty_sel);
 235         applyPB->setEnabled(!empty_sel);
 236 }
 237
 238
 239 void GuiSymbols::on_chosenLE_returnPressed()
 240 {
 241         on_okPB_clicked();
 242 }
 243
 244
 245 void GuiSymbols::on_symbolsLW_itemClicked(QListWidgetItem * item)
 246 {
 247         QString const text = item->text();
 248         if (text.isEmpty())
 249                 return;
 250         if (chosenLE->isEnabled())
 251                 chosenLE->insert(text);
 252         if (categoryFilterCB->isChecked()) {
 253                 QString const category = getBlock(text.data()->unicode());
 254                 categoryCO->setCurrentIndex(categoryCO->findText(category));
 255         }
 256 }
 257
 258
 259 void GuiSymbols::on_categoryCO_activated(QString const & text)
 260 {
 261         if (!categoryFilterCB->isChecked())
 262                 updateSymbolList(false);
 263         else if (used_blocks.find(text) != used_blocks.end())
 264                 symbolsLW->scrollToItem(used_blocks[text],
 265                         QAbstractItemView::PositionAtTop);
 266 }
 267
 268
 269 void GuiSymbols::on_categoryFilterCB_toggled(bool on)
 270 {
 271         updateSymbolList(on);
 272         if (on) {
 273                 QString const category = categoryCO->currentText();
 274                 if (used_blocks.find(category) != used_blocks.end())
 275                         symbolsLW->scrollToItem(used_blocks[category],
 276                                 QAbstractItemView::PositionAtTop);
 277         }
 278 }
 279
 280
 281 void GuiSymbols::updateSymbolList(bool update_combo)
 282 {
 283         QString category = categoryCO->currentText();
 284         bool const nocategory = category.isEmpty();
 285         char_type range_start = 0x0000;
 286         char_type range_end = 0x110000;
 287         symbolsLW->clear();
 288         if (update_combo) {
 289                 used_blocks.clear();
 290                 categoryCO->clear();
 291         }
 292         bool const show_all = categoryFilterCB->isChecked();
 293
 294         if (symbols_.empty() || update_combo) {
 295                 Encoding enc = *(encodings.getFromLyXName(encoding_));
 296                 symbols_ = enc.getSymbolsList();
 297         }
 298
 299         if (!show_all) {
 300                 for (int i = 0 ; i < no_blocks; ++i)
 301                         if (unicode_blocks[i].name == fromqstr(category)) {
 302                                 range_start = unicode_blocks[i].start;
 303                                 range_end = unicode_blocks[i].end;
 304                                 break;
 305                         }
 306         }
 307
 308         SymbolsList::const_iterator const end = symbols_.end();
 309         for (SymbolsList::const_iterator it = symbols_.begin(); it != end; ++it) {
 310                 char_type c = *it;
 311                 if (!update_combo && !show_all && (c <= range_start || c >= range_end))
 312                         continue;
 313 #if QT_VERSION >= 0x040300
 314                 QChar::Category const cat = QChar::category(uint(c));
 315 #else
 316                 QChar const qc = uint(c);
 317                 QChar::Category const cat = qc.category();
 318 #endif
 319                 // we do not want control or space characters
 320                 if (cat == QChar::Other_Control || cat == QChar::Separator_Space)
 321                         continue;
 322                 QListWidgetItem * lwi = new QListWidgetItem(toqstr(c));
 323                 if (show_all || c >= range_start && c <= range_end) {
 324                         lwi->setTextAlignment(Qt::AlignCenter);
 325                         lwi->setToolTip(
 326                                 qt_("Character: ") + toqstr(c) + "\n" +
 327                                 qt_("Code Point: ") + getCodePoint(c)
 328                                 );
 329                         symbolsLW->addItem(lwi);
 330                 }
 331                 if (update_combo) {
 332                         QString block = getBlock(c);
 333                         if (category.isEmpty())
 334                                 category = block;
 335                         if (used_blocks.find(block) == used_blocks.end())
 336                                 used_blocks[block] = lwi;
 337                 }
 338         }
 339
 340         if (update_combo) {
 341                 // update category combo
 342                 for (UsedBlocks::iterator it = used_blocks.begin();
 343                      it != used_blocks.end(); ++it) {
 344                         categoryCO->addItem(it->first);
 345                 }
 346         }
 347
 348         int old = categoryCO->findText(category);
 349         if (old != -1)
 350                 categoryCO->setCurrentIndex(old);
 351         // update again in case the combo has not yet been filled
 352         // on first cycle (at dialog initialization)
 353         if (nocategory && !category.isEmpty())
 354                 updateSymbolList();
 355 }
 356
 357
 358 QString const GuiSymbols::getBlock(char_type c) const
 359 {
 360         int i = 0;
 361         while (c > unicode_blocks[i].end && i < no_blocks)
 362                 ++i;
 363         if (unicode_blocks[i].name)
 364                 return toqstr(unicode_blocks[i].name);
 365         return QString();
 366 }
 367
 368
 369 void GuiSymbols::dispatchParams()
 370 {
 371         dispatch(FuncRequest(getLfun(), fromqstr(chosenLE->text())));
 372 }
 373
 374
 375 Dialog * createGuiSymbols(GuiView & lv)
 376 {
 377         return new GuiSymbols(lv);
 378 }
 379
 380
 381 } // namespace frontend
 382 } // namespace lyx
 383
 384 #include "GuiSymbols_moc.cpp"