src/frontends/qt4/GuiApplication.C

   1 /**
   2  * \file qt4/GuiApplication.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author unknown
   7  * \author John Levon
   8  * \author Abdelrazak Younes
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 #include <config.h>
  14
  15 #include "GuiApplication.h"
  16
  17 #include "qt_helpers.h"
  18 #include "QLImage.h"
  19 #include "socket_callback.h"
  20
  21 #include "frontends/LyXView.h"
  22
  23 #include "graphics/LoaderQueue.h"
  24
  25 #include "support/lstrings.h"
  26 #include "support/os.h"
  27 #include "support/package.h"
  28
  29 #include "BufferView.h"
  30 #include "Color.h"
  31 #include "debug.h"
  32 #include "funcrequest.h"
  33 #include "lyx_main.h"
  34 #include "lyxfunc.h"
  35 #include "lyxrc.h"
  36
  37 #include <QApplication>
  38 #include <QClipboard>
  39 #include <QEventLoop>
  40 #include <QLocale>
  41 #include <QLibraryInfo>
  42 #include <QTextCodec>
  43 #include <QTimer>
  44 #include <QTranslator>
  45 #include <QWidget>
  46
  47 #ifdef Q_WS_X11
  48 #include <X11/Xlib.h>
  49 #endif
  50
  51 #include <boost/bind.hpp>
  52
  53 using std::string;
  54 using std::endl;
  55
  56 // in QLyXKeySym.C
  57 extern void initEncodings();
  58
  59 ///////////////////////////////////////////////////////////////
  60 // You can find other X11 and MACX specific stuff
  61 // at the end of this file...
  62 ///////////////////////////////////////////////////////////////
  63
  64 namespace {
  65
  66 int getDPI()
  67 {
  68         QWidget w;
  69         return int(0.5 * (w.logicalDpiX() + w.logicalDpiY()));
  70 }
  71
  72 } // namespace anon
  73
  74
  75 namespace lyx {
  76
  77 frontend::Application * createApplication(int & argc, char * argv[])
  78 {
  79         return new frontend::GuiApplication(argc, argv);
  80 }
  81
  82
  83 namespace frontend {
  84
  85 GuiApplication * guiApp;
  86
  87
  88 GuiApplication::~GuiApplication()
  89 {
  90         socket_callbacks_.clear();
  91 }
  92
  93
  94 GuiApplication::GuiApplication(int & argc, char ** argv)
  95         : QApplication(argc, argv), Application(argc, argv)
  96 {
  97 #ifdef Q_WS_X11
  98         // doubleClickInterval() is 400 ms on X11 which is just too long.
  99         // On Windows and Mac OS X, the operating system's value is used.
 100         // On Microsoft Windows, calling this function sets the double
 101         // click interval for all applications. So we don't!
 102         QApplication::setDoubleClickInterval(300);
 103 #endif
 104
 105 #ifdef Q_WS_MACX
 106         AEInstallEventHandler(kCoreEventClass, kAEOpenDocuments,
 107                               NewAEEventHandlerUPP(handleOpenDocuments),
 108                               0, false);
 109 #endif
 110
 111         // install translation file for Qt built-in dialogs
 112         QTranslator qt_trans;
 113         QString language_name = QString("qt_") + QLocale::system().name();
 114         language_name.truncate(5);
 115         if (qt_trans.load(language_name,
 116                 QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
 117         {
 118                 qApp->installTranslator(&qt_trans);
 119                 // even if the language calls for RtL, don't do that
 120                 qApp->setLayoutDirection(Qt::LeftToRight);
 121                 lyxerr[Debug::GUI]
 122                         << "Successfully installed Qt translations for locale "
 123                         << fromqstr(language_name) << std::endl;
 124         } else
 125                 lyxerr[Debug::GUI]
 126                         << "Could not find  Qt translations for locale "
 127                         << fromqstr(language_name) << std::endl;
 128
 129 /*#ifdef Q_WS_MACX
 130         // These translations are meant to break Qt/Mac menu merging
 131         // algorithm on some entries. It lists the menu names that
 132         // should not be moved to the LyX menu
 133         QTranslator aqua_trans(0);
 134         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Setting", 0,
 135                                              "do_not_merge_me"));
 136         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Config", 0,
 137                                              "do_not_merge_me"));
 138         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Options", 0,
 139                                              "do_not_merge_me"));
 140         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Setup", 0,
 141                                              "do_not_merge_me"));
 142
 143         qApp->installTranslator(&aqua_trans);
 144 #endif
 145 */
 146         using namespace lyx::graphics;
 147
 148         Image::newImage = boost::bind(&QLImage::newImage);
 149         Image::loadableFormats = boost::bind(&QLImage::loadableFormats);
 150
 151         // needs to be done before reading lyxrc
 152         lyxrc.dpi = getDPI();
 153
 154         LoaderQueue::setPriority(10,100);
 155
 156         guiApp = this;
 157 }
 158
 159 Clipboard& GuiApplication::clipboard()
 160 {
 161         return clipboard_;
 162 }
 163
 164
 165 Selection& GuiApplication::selection()
 166 {
 167         return selection_;
 168 }
 169
 170
 171 int const GuiApplication::exec()
 172 {
 173         QTimer::singleShot(1, this, SLOT(execBatchCommands()));
 174         return QApplication::exec();
 175 }
 176
 177
 178 void GuiApplication::exit(int status)
 179 {
 180         QApplication::exit(status);
 181 }
 182
 183
 184 void GuiApplication::execBatchCommands()
 185 {
 186         LyX::ref().execBatchCommands();
 187 }
 188
 189
 190 string const GuiApplication::romanFontName()
 191 {
 192         QFont font;
 193         font.setKerning(false);
 194         font.setStyleHint(QFont::Serif);
 195         font.setFamily("serif");
 196
 197         return fromqstr(QFontInfo(font).family());
 198 }
 199
 200
 201 string const GuiApplication::sansFontName()
 202 {
 203         QFont font;
 204         font.setKerning(false);
 205         font.setStyleHint(QFont::SansSerif);
 206         font.setFamily("sans");
 207
 208         return fromqstr(QFontInfo(font).family());
 209 }
 210
 211
 212 string const GuiApplication::typewriterFontName()
 213 {
 214         QFont font;
 215         font.setKerning(false);
 216         font.setStyleHint(QFont::TypeWriter);
 217         font.setFamily("monospace");
 218
 219         return fromqstr(QFontInfo(font).family());
 220 }
 221
 222
 223 void GuiApplication::syncEvents()
 224 {
 225         // This is the ONLY place where processEvents may be called.
 226         // During screen update/ redraw, this method is disabled to
 227         // prevent keyboard events being handed to the LyX core, where
 228         // they could cause re-entrant calls to screen update.
 229         processEvents(QEventLoop::ExcludeUserInputEvents);
 230 }
 231
 232
 233 bool GuiApplication::getRgbColor(LColor_color col,
 234         lyx::RGBColor & rgbcol)
 235 {
 236         QColor const & qcol = color_cache_.get(col);
 237         if (!qcol.isValid()) {
 238                 rgbcol.r = 0;
 239                 rgbcol.g = 0;
 240                 rgbcol.b = 0;
 241                 return false;
 242         }
 243         rgbcol.r = qcol.red();
 244         rgbcol.g = qcol.green();
 245         rgbcol.b = qcol.blue();
 246         return true;
 247 }
 248
 249
 250 string const GuiApplication::hexName(LColor_color col)
 251 {
 252         return lyx::support::ltrim(fromqstr(color_cache_.get(col).name()), "#");
 253 }
 254
 255
 256 void GuiApplication::updateColor(LColor_color)
 257 {
 258         // FIXME: Bleh, can't we just clear them all at once ?
 259         color_cache_.clear();
 260 }
 261
 262
 263 void GuiApplication::registerSocketCallback(int fd, boost::function<void()> func)
 264 {
 265         socket_callbacks_[fd] =
 266                 boost::shared_ptr<socket_callback>(new socket_callback(fd, func));
 267 }
 268
 269
 270 void GuiApplication::unregisterSocketCallback(int fd)
 271 {
 272         socket_callbacks_.erase(fd);
 273 }
 274
 275 ////////////////////////////////////////////////////////////////////////
 276 // X11 specific stuff goes here...
 277 #ifdef Q_WS_X11
 278 bool GuiApplication::x11EventFilter(XEvent * xev)
 279 {
 280         BufferView * bv = currentView().view();
 281
 282         switch (xev->type) {
 283         case SelectionRequest:
 284                 lyxerr[Debug::GUI] << "X requested selection." << endl;
 285                 if (bv) {
 286                         lyx::docstring const sel = bv->requestSelection();
 287                         if (!sel.empty())
 288                                 selection_.put(sel);
 289                 }
 290                 break;
 291         case SelectionClear:
 292                 lyxerr[Debug::GUI] << "Lost selection." << endl;
 293                 if (bv)
 294                         bv->clearSelection();
 295                 break;
 296         }
 297         return false;
 298 }
 299 #endif
 300
 301
 302 ////////////////////////////////////////////////////////////////////////
 303 // Mac OSX specific stuff goes here...
 304
 305 #ifdef Q_WS_MACX
 306 namespace{
 307
 308 OSErr checkAppleEventForMissingParams(const AppleEvent& theAppleEvent)
 309  {
 310         DescType returnedType;
 311         Size actualSize;
 312         OSErr err = AEGetAttributePtr(&theAppleEvent, keyMissedKeywordAttr,
 313                                       typeWildCard, &returnedType, nil, 0,
 314                                       &actualSize);
 315         switch (err) {
 316         case errAEDescNotFound:
 317                 return noErr;
 318         case noErr:
 319                 return errAEEventNotHandled;
 320         default:
 321                 return err;
 322         }
 323  }
 324
 325 } // namespace
 326
 327 OSErr GuiApplication::handleOpenDocuments(const AppleEvent* inEvent,
 328                                        AppleEvent* /*reply*/, long /*refCon*/)
 329 {
 330         QString s_arg;
 331         AEDescList documentList;
 332         OSErr err = AEGetParamDesc(inEvent, keyDirectObject, typeAEList,
 333                                    &documentList);
 334         if (err != noErr)
 335                 return err;
 336
 337         err = checkAppleEventForMissingParams(*inEvent);
 338         if (err == noErr) {
 339                 long documentCount;
 340                 err = AECountItems(&documentList, &documentCount);
 341                 for (long documentIndex = 1;
 342                      err == noErr && documentIndex <= documentCount;
 343                      documentIndex++) {
 344                         DescType returnedType;
 345                         Size actualSize;
 346                         AEKeyword keyword;
 347                         FSRef ref;
 348                         char qstr_buf[1024];
 349                         err = AESizeOfNthItem(&documentList, documentIndex,
 350                                               &returnedType, &actualSize);
 351                         if (err == noErr) {
 352                                 err = AEGetNthPtr(&documentList, documentIndex,
 353                                                   typeFSRef, &keyword,
 354                                                   &returnedType, (Ptr)&ref,
 355                                                   sizeof(FSRef), &actualSize);
 356                                 if (err == noErr) {
 357                                         FSRefMakePath(&ref, (UInt8*)qstr_buf,
 358                                                       1024);
 359                                         s_arg=QString::fromUtf8(qstr_buf);
 360 //                                      bv->workAreaDispatch(
 361 //                                              FuncRequest(LFUN_FILE_OPEN,
 362 //                                                          fromqstr(s_arg)));
 363                                         break;
 364                                 }
 365                         }
 366                 } // for ...
 367         }
 368         AEDisposeDesc(&documentList);
 369
 370         return err;
 371 }
 372
 373 bool GuiApplication::macEventFilter(EventRef event)
 374 {
 375         if (GetEventClass(event) == kEventClassAppleEvent) {
 376                 EventRecord eventrec;
 377                 ConvertEventRefToEventRecord(event, &eventrec);
 378                 AEProcessAppleEvent(&eventrec);
 379
 380                 return false;
 381         }
 382         return false;
 383 }
 384
 385 #endif  // Q_WS_MACX
 386
 387 } // namespace frontend
 388 } // namespace lyx
 389
 390 #include "GuiApplication_moc.cpp"