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 "graphics/LoaderQueue.h"
  22
  23 #include "support/lstrings.h"
  24 #include "support/os.h"
  25 #include "support/package.h"
  26
  27 #include "BufferView.h"
  28 #include "Color.h"
  29 #include "debug.h"
  30 #include "lyx_main.h"
  31 #include "lyxrc.h"
  32
  33 #include <QApplication>
  34 #include <QClipboard>
  35 #include <QEventLoop>
  36 #include <QLocale>
  37 #include <QLibraryInfo>
  38 #include <QTextCodec>
  39 #include <QTranslator>
  40 #include <QWidget>
  41
  42 #ifdef Q_WS_X11
  43 #include <X11/Xlib.h>
  44 #endif
  45
  46 #include <boost/bind.hpp>
  47
  48 using lyx::support::subst;
  49
  50 using std::string;
  51 using std::endl;
  52
  53 // in QLyXKeySym.C
  54 extern void initEncodings();
  55
  56 ///////////////////////////////////////////////////////////////
  57 // You can find other X11 and MACX specific stuff
  58 // at the end of this file...
  59 ///////////////////////////////////////////////////////////////
  60
  61 namespace {
  62
  63 int getDPI()
  64 {
  65         QWidget w;
  66         return int(0.5 * (w.logicalDpiX() + w.logicalDpiY()));
  67 }
  68
  69 } // namespace anon
  70
  71
  72 lyx::frontend::GuiApplication * guiApp;
  73
  74 namespace lyx {
  75
  76 lyx::frontend::Application * createApplication(int & argc, char * argv[])
  77 {
  78         // FIXME: it would be great if we could just do:
  79         //return new lyx::frontend::GuiApplication(argc, argv);
  80
  81 #if defined(Q_WS_WIN) && !defined(Q_CYGWIN_WIN)
  82         static lyx::frontend::GuiApplication app(argc, argv);
  83 #else
  84         lyx::frontend::GuiApplication app(argc, argv);
  85 #endif
  86
  87         return &app;
  88 }
  89
  90
  91 namespace frontend {
  92
  93 GuiApplication::GuiApplication(int & argc, char ** argv)
  94         : QApplication(argc, argv), Application(argc, argv)
  95 {
  96 #ifdef Q_WS_X11
  97         // doubleClickInterval() is 400 ms on X11 witch is just too long.
  98         // On Windows and Mac OS X, the operating system's value is used.
  99         // On Microsoft Windows, calling this function sets the double
 100         // click interval for all applications. So we don't!
 101         QApplication::setDoubleClickInterval(300);
 102 #endif
 103
 104 #ifdef Q_WS_MACX
 105         AEInstallEventHandler(kCoreEventClass, kAEOpenDocuments,
 106                               NewAEEventHandlerUPP(handleOpenDocuments),
 107                               0, false);
 108 #endif
 109
 110         // install translation file for Qt built-in dialogs
 111         // These are only installed since Qt 3.2.x
 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
 160 Clipboard& GuiApplication::clipboard()
 161 {
 162         return clipboard_;
 163 }
 164
 165
 166 Selection& GuiApplication::selection()
 167 {
 168         return selection_;
 169 }
 170
 171
 172 int const GuiApplication::exec()
 173 {
 174         return QApplication::exec();
 175 }
 176
 177
 178 void GuiApplication::exit(int status)
 179 {
 180         QApplication::exit(status);
 181 }
 182
 183
 184 string const GuiApplication::romanFontName()
 185 {
 186         QFont font;
 187         font.setStyleHint(QFont::Serif);
 188         font.setFamily("serif");
 189
 190         return fromqstr(QFontInfo(font).family());
 191 }
 192
 193
 194 string const GuiApplication::sansFontName()
 195 {
 196         QFont font;
 197         font.setStyleHint(QFont::SansSerif);
 198         font.setFamily("sans");
 199
 200         return fromqstr(QFontInfo(font).family());
 201 }
 202
 203
 204 string const GuiApplication::typewriterFontName()
 205 {
 206         QFont font;
 207         font.setStyleHint(QFont::TypeWriter);
 208         font.setFamily("monospace");
 209
 210         return fromqstr(QFontInfo(font).family());
 211 }
 212
 213
 214 void GuiApplication::syncEvents()
 215 {
 216         // This is the ONLY place where processEvents may be called.
 217         // During screen update/ redraw, this method is disabled to
 218         // prevent keyboard events being handed to the LyX core, where
 219         // they could cause re-entrant calls to screen update.
 220         processEvents(QEventLoop::ExcludeUserInputEvents);
 221 }
 222
 223
 224 bool GuiApplication::getRgbColor(LColor_color col,
 225                                                                  lyx::RGBColor & rgbcol)
 226 {
 227         QColor const & qcol = color_cache_.get(col);
 228         if (!qcol.isValid()) {
 229                 rgbcol.r = 0;
 230                 rgbcol.g = 0;
 231                 rgbcol.b = 0;
 232                 return false;
 233         }
 234         rgbcol.r = qcol.red();
 235         rgbcol.g = qcol.green();
 236         rgbcol.b = qcol.blue();
 237         return true;
 238 }
 239
 240
 241 string const GuiApplication::hexName(LColor_color col)
 242 {
 243         return lyx::support::ltrim(fromqstr(color_cache_.get(col).name()), "#");
 244 }
 245
 246
 247 void GuiApplication::updateColor(LColor_color)
 248 {
 249         // FIXME: Bleh, can't we just clear them all at once ?
 250         color_cache_.clear();
 251 }
 252
 253
 254 void GuiApplication::registerSocketCallback(int fd, boost::function<void()> func)
 255 {
 256         socket_callbacks_[fd] =
 257                 boost::shared_ptr<socket_callback>(new socket_callback(fd, func));
 258 }
 259
 260
 261 void GuiApplication::unregisterSocketCallback(int fd)
 262 {
 263         socket_callbacks_.erase(fd);
 264 }
 265
 266 ////////////////////////////////////////////////////////////////////////
 267 // X11 specific stuff goes here...
 268 #ifdef Q_WS_X11
 269 bool GuiApplication::x11EventFilter(XEvent * xev)
 270 {
 271         switch (xev->type) {
 272         case SelectionRequest:
 273                 lyxerr[Debug::GUI] << "X requested selection." << endl;
 274                 if (buffer_view_) {
 275                         lyx::docstring const sel = buffer_view_->requestSelection();
 276                         if (!sel.empty())
 277                                 selection_.put(sel);
 278                 }
 279                 break;
 280         case SelectionClear:
 281                 lyxerr[Debug::GUI] << "Lost selection." << endl;
 282                 if (buffer_view_)
 283                         buffer_view_->clearSelection();
 284                 break;
 285         }
 286         return false;
 287 }
 288 #endif
 289
 290
 291 ////////////////////////////////////////////////////////////////////////
 292 // Mac OSX specific stuff goes here...
 293
 294 #ifdef Q_WS_MACX
 295 namespace{
 296
 297 OSErr checkAppleEventForMissingParams(const AppleEvent& theAppleEvent)
 298  {
 299         DescType returnedType;
 300         Size actualSize;
 301         OSErr err = AEGetAttributePtr(&theAppleEvent, keyMissedKeywordAttr,
 302                                       typeWildCard, &returnedType, nil, 0,
 303                                       &actualSize);
 304         switch (err) {
 305         case errAEDescNotFound:
 306                 return noErr;
 307         case noErr:
 308                 return errAEEventNotHandled;
 309         default:
 310                 return err;
 311         }
 312  }
 313
 314 } // namespace
 315
 316 OSErr GuiApplication::handleOpenDocuments(const AppleEvent* inEvent,
 317                                        AppleEvent* /*reply*/, long /*refCon*/)
 318 {
 319         QString s_arg;
 320         AEDescList documentList;
 321         OSErr err = AEGetParamDesc(inEvent, keyDirectObject, typeAEList,
 322                                    &documentList);
 323         if (err != noErr)
 324                 return err;
 325
 326         err = checkAppleEventForMissingParams(*inEvent);
 327         if (err == noErr) {
 328                 long documentCount;
 329                 err = AECountItems(&documentList, &documentCount);
 330                 for (long documentIndex = 1;
 331                      err == noErr && documentIndex <= documentCount;
 332                      documentIndex++) {
 333                         DescType returnedType;
 334                         Size actualSize;
 335                         AEKeyword keyword;
 336                         FSRef ref;
 337                         char qstr_buf[1024];
 338                         err = AESizeOfNthItem(&documentList, documentIndex,
 339                                               &returnedType, &actualSize);
 340                         if (err == noErr) {
 341                                 err = AEGetNthPtr(&documentList, documentIndex,
 342                                                   typeFSRef, &keyword,
 343                                                   &returnedType, (Ptr)&ref,
 344                                                   sizeof(FSRef), &actualSize);
 345                                 if (err == noErr) {
 346                                         FSRefMakePath(&ref, (UInt8*)qstr_buf,
 347                                                       1024);
 348                                         s_arg=QString::fromUtf8(qstr_buf);
 349 //                                      buffer_view_->workAreaDispatch(
 350 //                                              FuncRequest(LFUN_FILE_OPEN,
 351 //                                                          fromqstr(s_arg)));
 352                                         break;
 353                                 }
 354                         }
 355                 } // for ...
 356         }
 357         AEDisposeDesc(&documentList);
 358
 359         return err;
 360 }
 361
 362 bool GuiApplication::macEventFilter(EventRef event)
 363 {
 364         if (GetEventClass(event) == kEventClassAppleEvent) {
 365                 EventRecord eventrec;
 366                 ConvertEventRefToEventRecord(event, &eventrec);
 367                 AEProcessAppleEvent(&eventrec);
 368
 369                 return false;
 370         }
 371         return false;
 372 }
 373
 374 #endif  // Q_WS_MACX
 375
 376 } // namespace frontend
 377 } // namespace lyx