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         return new lyx::frontend::GuiApplication(argc, argv);
  79 }
  80
  81
  82 namespace frontend {
  83
  84 GuiApplication::GuiApplication(int & argc, char ** argv)
  85         : QApplication(argc, argv), Application(argc, argv)
  86 {
  87 #ifdef Q_WS_X11
  88         // doubleClickInterval() is 400 ms on X11 witch is just too long.
  89         // On Windows and Mac OS X, the operating system's value is used.
  90         // On Microsoft Windows, calling this function sets the double
  91         // click interval for all applications. So we don't!
  92         QApplication::setDoubleClickInterval(300);
  93 #endif
  94
  95 #ifdef Q_WS_MACX
  96         AEInstallEventHandler(kCoreEventClass, kAEOpenDocuments,
  97                               NewAEEventHandlerUPP(handleOpenDocuments),
  98                               0, false);
  99 #endif
 100
 101         // install translation file for Qt built-in dialogs
 102         // These are only installed since Qt 3.2.x
 103         QTranslator qt_trans;
 104         QString language_name = QString("qt_") + QLocale::system().name();
 105         language_name.truncate(5);
 106         if (qt_trans.load(language_name,
 107                 QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
 108         {
 109                 qApp->installTranslator(&qt_trans);
 110                 // even if the language calls for RtL, don't do that
 111                 qApp->setLayoutDirection(Qt::LeftToRight);
 112                 lyxerr[Debug::GUI]
 113                         << "Successfully installed Qt translations for locale "
 114                         << fromqstr(language_name) << std::endl;
 115         } else
 116                 lyxerr[Debug::GUI]
 117                         << "Could not find  Qt translations for locale "
 118                         << fromqstr(language_name) << std::endl;
 119
 120 /*#ifdef Q_WS_MACX
 121         // These translations are meant to break Qt/Mac menu merging
 122         // algorithm on some entries. It lists the menu names that
 123         // should not be moved to the LyX menu
 124         QTranslator aqua_trans(0);
 125         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Setting", 0,
 126                                              "do_not_merge_me"));
 127         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Config", 0,
 128                                              "do_not_merge_me"));
 129         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Options", 0,
 130                                              "do_not_merge_me"));
 131         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Setup", 0,
 132                                              "do_not_merge_me"));
 133
 134         qApp->installTranslator(&aqua_trans);
 135 #endif
 136 */
 137         using namespace lyx::graphics;
 138
 139         Image::newImage = boost::bind(&QLImage::newImage);
 140         Image::loadableFormats = boost::bind(&QLImage::loadableFormats);
 141
 142         // needs to be done before reading lyxrc
 143         lyxrc.dpi = getDPI();
 144
 145         LoaderQueue::setPriority(10,100);
 146
 147         guiApp = this;
 148 }
 149
 150
 151 Clipboard& GuiApplication::clipboard()
 152 {
 153         return clipboard_;
 154 }
 155
 156
 157 Selection& GuiApplication::selection()
 158 {
 159         return selection_;
 160 }
 161
 162
 163 int const GuiApplication::exec()
 164 {
 165         return QApplication::exec();
 166 }
 167
 168
 169 void GuiApplication::exit(int status)
 170 {
 171         QApplication::exit(status);
 172 }
 173
 174
 175 string const GuiApplication::romanFontName()
 176 {
 177         QFont font;
 178         font.setStyleHint(QFont::Serif);
 179         font.setFamily("serif");
 180
 181         return fromqstr(QFontInfo(font).family());
 182 }
 183
 184
 185 string const GuiApplication::sansFontName()
 186 {
 187         QFont font;
 188         font.setStyleHint(QFont::SansSerif);
 189         font.setFamily("sans");
 190
 191         return fromqstr(QFontInfo(font).family());
 192 }
 193
 194
 195 string const GuiApplication::typewriterFontName()
 196 {
 197         QFont font;
 198         font.setStyleHint(QFont::TypeWriter);
 199         font.setFamily("monospace");
 200
 201         return fromqstr(QFontInfo(font).family());
 202 }
 203
 204
 205 void GuiApplication::syncEvents()
 206 {
 207         // This is the ONLY place where processEvents may be called.
 208         // During screen update/ redraw, this method is disabled to
 209         // prevent keyboard events being handed to the LyX core, where
 210         // they could cause re-entrant calls to screen update.
 211         processEvents(QEventLoop::ExcludeUserInputEvents);
 212 }
 213
 214
 215 bool GuiApplication::getRgbColor(LColor_color col,
 216         lyx::RGBColor & rgbcol)
 217 {
 218         QColor const & qcol = color_cache_.get(col);
 219         if (!qcol.isValid()) {
 220                 rgbcol.r = 0;
 221                 rgbcol.g = 0;
 222                 rgbcol.b = 0;
 223                 return false;
 224         }
 225         rgbcol.r = qcol.red();
 226         rgbcol.g = qcol.green();
 227         rgbcol.b = qcol.blue();
 228         return true;
 229 }
 230
 231
 232 string const GuiApplication::hexName(LColor_color col)
 233 {
 234         return lyx::support::ltrim(fromqstr(color_cache_.get(col).name()), "#");
 235 }
 236
 237
 238 void GuiApplication::updateColor(LColor_color)
 239 {
 240         // FIXME: Bleh, can't we just clear them all at once ?
 241         color_cache_.clear();
 242 }
 243
 244
 245 void GuiApplication::registerSocketCallback(int fd, boost::function<void()> func)
 246 {
 247         socket_callbacks_[fd] =
 248                 boost::shared_ptr<socket_callback>(new socket_callback(fd, func));
 249 }
 250
 251
 252 void GuiApplication::unregisterSocketCallback(int fd)
 253 {
 254         socket_callbacks_.erase(fd);
 255 }
 256
 257 ////////////////////////////////////////////////////////////////////////
 258 // X11 specific stuff goes here...
 259 #ifdef Q_WS_X11
 260 bool GuiApplication::x11EventFilter(XEvent * xev)
 261 {
 262         switch (xev->type) {
 263         case SelectionRequest:
 264                 lyxerr[Debug::GUI] << "X requested selection." << endl;
 265                 if (buffer_view_) {
 266                         lyx::docstring const sel = buffer_view_->requestSelection();
 267                         if (!sel.empty())
 268                                 selection_.put(sel);
 269                 }
 270                 break;
 271         case SelectionClear:
 272                 lyxerr[Debug::GUI] << "Lost selection." << endl;
 273                 if (buffer_view_)
 274                         buffer_view_->clearSelection();
 275                 break;
 276         }
 277         return false;
 278 }
 279 #endif
 280
 281
 282 ////////////////////////////////////////////////////////////////////////
 283 // Mac OSX specific stuff goes here...
 284
 285 #ifdef Q_WS_MACX
 286 namespace{
 287
 288 OSErr checkAppleEventForMissingParams(const AppleEvent& theAppleEvent)
 289  {
 290         DescType returnedType;
 291         Size actualSize;
 292         OSErr err = AEGetAttributePtr(&theAppleEvent, keyMissedKeywordAttr,
 293                                       typeWildCard, &returnedType, nil, 0,
 294                                       &actualSize);
 295         switch (err) {
 296         case errAEDescNotFound:
 297                 return noErr;
 298         case noErr:
 299                 return errAEEventNotHandled;
 300         default:
 301                 return err;
 302         }
 303  }
 304
 305 } // namespace
 306
 307 OSErr GuiApplication::handleOpenDocuments(const AppleEvent* inEvent,
 308                                        AppleEvent* /*reply*/, long /*refCon*/)
 309 {
 310         QString s_arg;
 311         AEDescList documentList;
 312         OSErr err = AEGetParamDesc(inEvent, keyDirectObject, typeAEList,
 313                                    &documentList);
 314         if (err != noErr)
 315                 return err;
 316
 317         err = checkAppleEventForMissingParams(*inEvent);
 318         if (err == noErr) {
 319                 long documentCount;
 320                 err = AECountItems(&documentList, &documentCount);
 321                 for (long documentIndex = 1;
 322                      err == noErr && documentIndex <= documentCount;
 323                      documentIndex++) {
 324                         DescType returnedType;
 325                         Size actualSize;
 326                         AEKeyword keyword;
 327                         FSRef ref;
 328                         char qstr_buf[1024];
 329                         err = AESizeOfNthItem(&documentList, documentIndex,
 330                                               &returnedType, &actualSize);
 331                         if (err == noErr) {
 332                                 err = AEGetNthPtr(&documentList, documentIndex,
 333                                                   typeFSRef, &keyword,
 334                                                   &returnedType, (Ptr)&ref,
 335                                                   sizeof(FSRef), &actualSize);
 336                                 if (err == noErr) {
 337                                         FSRefMakePath(&ref, (UInt8*)qstr_buf,
 338                                                       1024);
 339                                         s_arg=QString::fromUtf8(qstr_buf);
 340 //                                      buffer_view_->workAreaDispatch(
 341 //                                              FuncRequest(LFUN_FILE_OPEN,
 342 //                                                          fromqstr(s_arg)));
 343                                         break;
 344                                 }
 345                         }
 346                 } // for ...
 347         }
 348         AEDisposeDesc(&documentList);
 349
 350         return err;
 351 }
 352
 353 bool GuiApplication::macEventFilter(EventRef event)
 354 {
 355         if (GetEventClass(event) == kEventClassAppleEvent) {
 356                 EventRecord eventrec;
 357                 ConvertEventRefToEventRecord(event, &eventrec);
 358                 AEProcessAppleEvent(&eventrec);
 359
 360                 return false;
 361         }
 362         return false;
 363 }
 364
 365 #endif  // Q_WS_MACX
 366
 367 } // namespace frontend
 368 } // namespace lyx