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         updateSymbolList();
 191 }
 192
 193
 194 void GuiSymbols::enableView(bool enable)
 195 {
 196         chosenLE->setEnabled(enable);
 197         okPB->setEnabled(enable);
 198         applyPB->setEnabled(enable);
 199 }
 200
 201
 202 void GuiSymbols::on_applyPB_clicked()
 203 {
 204         dispatchParams();
 205 }
 206
 207
 208 void GuiSymbols::on_okPB_clicked()
 209 {
 210         dispatchParams();
 211         hide();
 212 }
 213
 214
 215 void GuiSymbols::on_closePB_clicked()
 216 {
 217         hide();
 218 }
 219
 220
 221 void GuiSymbols::on_symbolsLW_itemActivated(QListWidgetItem *)
 222 {
 223         on_okPB_clicked();
 224 }
 225
 226
 227 void GuiSymbols::on_chosenLE_textChanged(QString const & text)
 228 {
 229         bool const empty_sel = text.isEmpty();
 230         okPB->setEnabled(!empty_sel);
 231         applyPB->setEnabled(!empty_sel);
 232 }
 233
 234
 235 void GuiSymbols::on_chosenLE_returnPressed()
 236 {
 237         on_okPB_clicked();
 238 }
 239
 240
 241 void GuiSymbols::on_symbolsLW_itemClicked(QListWidgetItem * item)
 242 {
 243         QString const text = item->text();
 244         if (text.isEmpty())
 245                 return;
 246         if (chosenLE->isEnabled())
 247                 chosenLE->insert(text);
 248         if (categoryFilterCB->isChecked()) {
 249                 QString const category = getBlock(text.data()->unicode());
 250                 categoryCO->setCurrentIndex(categoryCO->findText(category));
 251         }
 252 }
 253
 254
 255 void GuiSymbols::on_categoryCO_activated(QString const & text)
 256 {
 257         if (!categoryFilterCB->isChecked())
 258                 updateSymbolList(false);
 259         else if (used_blocks.find(text) != used_blocks.end())
 260                 symbolsLW->scrollToItem(used_blocks[text],
 261                         QAbstractItemView::PositionAtTop);
 262 }
 263
 264
 265 void GuiSymbols::on_categoryFilterCB_toggled(bool on)
 266 {
 267         updateSymbolList(on);
 268         if (on) {
 269                 QString const category = categoryCO->currentText();
 270                 if (used_blocks.find(category) != used_blocks.end())
 271                         symbolsLW->scrollToItem(used_blocks[category],
 272                                 QAbstractItemView::PositionAtTop);
 273         }
 274 }
 275
 276
 277 void GuiSymbols::updateSymbolList(bool update_combo)
 278 {
 279         QString category = categoryCO->currentText();
 280         bool const nocategory = category.isEmpty();
 281         char_type range_start = 0x0000;
 282         char_type range_end = 0x110000;
 283         symbolsLW->clear();
 284         if (update_combo) {
 285                 used_blocks.clear();
 286                 categoryCO->clear();
 287         }
 288         bool const show_all = categoryFilterCB->isChecked();
 289
 290         typedef set<char_type> SymbolsList;
 291         Encoding enc = *(encodings.getFromLyXName(encoding_));
 292         SymbolsList symbols = enc.getSymbolsList();
 293
 294         if (!show_all) {
 295                 for (int i = 0 ; i < no_blocks; ++i)
 296                         if (unicode_blocks[i].name == fromqstr(category)) {
 297                                 range_start = unicode_blocks[i].start;
 298                                 range_end = unicode_blocks[i].end;
 299                                 break;
 300                         }
 301         }
 302
 303         SymbolsList::const_iterator const end = symbols.end();
 304         for (SymbolsList::const_iterator it = symbols.begin(); it != end; ++it) {
 305                 char_type c = *it;
 306 #if QT_VERSION >= 0x040300
 307                 QChar::Category const cat = QChar::category(uint(c));
 308 #else
 309                 QChar const qc = uint(c);
 310                 QChar::Category const cat = qc.category();
 311 #endif
 312                 // we do not want control or space characters
 313                 if (cat == QChar::Other_Control || cat == QChar::Separator_Space)
 314                         continue;
 315                 if (!update_combo && !show_all && (c <= range_start || c >= range_end))
 316                         continue;
 317                 QListWidgetItem * lwi = new QListWidgetItem(toqstr(c));
 318                 if (show_all || c >= range_start && c <= range_end) {
 319                         lwi->setTextAlignment(Qt::AlignCenter);
 320                         lwi->setToolTip(
 321                                 qt_("Character: ") + toqstr(c) + "\n" +
 322                                 qt_("Code Point: ") + getCodePoint(c)
 323                                 );
 324                         symbolsLW->addItem(lwi);
 325                 }
 326                 if (update_combo) {
 327                         QString block = getBlock(c);
 328                         if (category.isEmpty())
 329                                 category = block;
 330                         if (used_blocks.find(block) == used_blocks.end())
 331                                 used_blocks[block] = lwi;
 332                 }
 333         }
 334
 335         if (update_combo) {
 336                 // update category combo
 337                 for (UsedBlocks::iterator it = used_blocks.begin();
 338                      it != used_blocks.end(); ++it) {
 339                         categoryCO->addItem(it->first);
 340                 }
 341         }
 342
 343         int old = categoryCO->findText(category);
 344         if (old != -1)
 345                 categoryCO->setCurrentIndex(old);
 346         // update again in case the combo has not yet been filled
 347         // on first cycle (at dialog initialization)
 348         if (nocategory && !category.isEmpty())
 349                 updateSymbolList();
 350 }
 351
 352
 353 QString const GuiSymbols::getBlock(char_type c) const
 354 {
 355         int i = 0;
 356         while (c > unicode_blocks[i].end && i < no_blocks)
 357                 ++i;
 358         if (unicode_blocks[i].name)
 359                 return toqstr(unicode_blocks[i].name);
 360         return QString();
 361 }
 362
 363
 364 void GuiSymbols::dispatchParams()
 365 {
 366         dispatch(FuncRequest(getLfun(), fromqstr(chosenLE->text())));
 367 }
 368
 369
 370 Dialog * createGuiSymbols(GuiView & lv)
 371 {
 372         return new GuiSymbols(lv);
 373 }
 374
 375
 376 } // namespace frontend
 377 } // namespace lyx
 378
 379 #include "GuiSymbols_moc.cpp"