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 std::string;
  49 using std::endl;
  50
  51 // in QLyXKeySym.C
  52 extern void initEncodings();
  53
  54 ///////////////////////////////////////////////////////////////
  55 // You can find other X11 and MACX specific stuff
  56 // at the end of this file...
  57 ///////////////////////////////////////////////////////////////
  58
  59 namespace {
  60
  61 int getDPI()
  62 {
  63         QWidget w;
  64         return int(0.5 * (w.logicalDpiX() + w.logicalDpiY()));
  65 }
  66
  67 } // namespace anon
  68
  69
  70 namespace lyx {
  71
  72 frontend::Application * createApplication(int & argc, char * argv[])
  73 {
  74         return new frontend::GuiApplication(argc, argv);
  75 }
  76
  77
  78 namespace frontend {
  79
  80 GuiApplication * guiApp;
  81
  82
  83 GuiApplication::~GuiApplication()
  84 {
  85         socket_callbacks_.clear();
  86 }
  87
  88
  89 GuiApplication::GuiApplication(int & argc, char ** argv)
  90         : QApplication(argc, argv), Application(argc, argv)
  91 {
  92 #ifdef Q_WS_X11
  93         // doubleClickInterval() is 400 ms on X11 which is just too long.
  94         // On Windows and Mac OS X, the operating system's value is used.
  95         // On Microsoft Windows, calling this function sets the double
  96         // click interval for all applications. So we don't!
  97         QApplication::setDoubleClickInterval(300);
  98 #endif
  99
 100 #ifdef Q_WS_MACX
 101         AEInstallEventHandler(kCoreEventClass, kAEOpenDocuments,
 102                               NewAEEventHandlerUPP(handleOpenDocuments),
 103                               0, false);
 104 #endif
 105
 106         // install translation file for Qt built-in dialogs
 107         // These are only installed since Qt 3.2.x
 108         QTranslator qt_trans;
 109         QString language_name = QString("qt_") + QLocale::system().name();
 110         language_name.truncate(5);
 111         if (qt_trans.load(language_name,
 112                 QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
 113         {
 114                 qApp->installTranslator(&qt_trans);
 115                 // even if the language calls for RtL, don't do that
 116                 qApp->setLayoutDirection(Qt::LeftToRight);
 117                 lyxerr[Debug::GUI]
 118                         << "Successfully installed Qt translations for locale "
 119                         << fromqstr(language_name) << std::endl;
 120         } else
 121                 lyxerr[Debug::GUI]
 122                         << "Could not find  Qt translations for locale "
 123                         << fromqstr(language_name) << std::endl;
 124
 125 /*#ifdef Q_WS_MACX
 126         // These translations are meant to break Qt/Mac menu merging
 127         // algorithm on some entries. It lists the menu names that
 128         // should not be moved to the LyX menu
 129         QTranslator aqua_trans(0);
 130         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Setting", 0,
 131                                              "do_not_merge_me"));
 132         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Config", 0,
 133                                              "do_not_merge_me"));
 134         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Options", 0,
 135                                              "do_not_merge_me"));
 136         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Setup", 0,
 137                                              "do_not_merge_me"));
 138
 139         qApp->installTranslator(&aqua_trans);
 140 #endif
 141 */
 142         using namespace lyx::graphics;
 143
 144         Image::newImage = boost::bind(&QLImage::newImage);
 145         Image::loadableFormats = boost::bind(&QLImage::loadableFormats);
 146
 147         // needs to be done before reading lyxrc
 148         lyxrc.dpi = getDPI();
 149
 150         LoaderQueue::setPriority(10,100);
 151
 152         guiApp = this;
 153 }
 154
 155
 156 Clipboard& GuiApplication::clipboard()
 157 {
 158         return clipboard_;
 159 }
 160
 161
 162 Selection& GuiApplication::selection()
 163 {
 164         return selection_;
 165 }
 166
 167
 168 int const GuiApplication::exec()
 169 {
 170         return QApplication::exec();
 171 }
 172
 173
 174 void GuiApplication::exit(int status)
 175 {
 176         QApplication::exit(status);
 177 }
 178
 179
 180 string const GuiApplication::romanFontName()
 181 {
 182         QFont font;
 183         font.setKerning(false);
 184         font.setStyleHint(QFont::Serif);
 185         font.setFamily("serif");
 186
 187         return fromqstr(QFontInfo(font).family());
 188 }
 189
 190
 191 string const GuiApplication::sansFontName()
 192 {
 193         QFont font;
 194         font.setKerning(false);
 195         font.setStyleHint(QFont::SansSerif);
 196         font.setFamily("sans");
 197
 198         return fromqstr(QFontInfo(font).family());
 199 }
 200
 201
 202 string const GuiApplication::typewriterFontName()
 203 {
 204         QFont font;
 205         font.setKerning(false);
 206         font.setStyleHint(QFont::TypeWriter);
 207         font.setFamily("monospace");
 208
 209         return fromqstr(QFontInfo(font).family());
 210 }
 211
 212
 213 void GuiApplication::syncEvents()
 214 {
 215         // This is the ONLY place where processEvents may be called.
 216         // During screen update/ redraw, this method is disabled to
 217         // prevent keyboard events being handed to the LyX core, where
 218         // they could cause re-entrant calls to screen update.
 219         processEvents(QEventLoop::ExcludeUserInputEvents);
 220 }
 221
 222
 223 bool GuiApplication::getRgbColor(LColor_color col,
 224         lyx::RGBColor & rgbcol)
 225 {
 226         QColor const & qcol = color_cache_.get(col);
 227         if (!qcol.isValid()) {
 228                 rgbcol.r = 0;
 229                 rgbcol.g = 0;
 230                 rgbcol.b = 0;
 231                 return false;
 232         }
 233         rgbcol.r = qcol.red();
 234         rgbcol.g = qcol.green();
 235         rgbcol.b = qcol.blue();
 236         return true;
 237 }
 238
 239
 240 string const GuiApplication::hexName(LColor_color col)
 241 {
 242         return lyx::support::ltrim(fromqstr(color_cache_.get(col).name()), "#");
 243 }
 244
 245
 246 void GuiApplication::updateColor(LColor_color)
 247 {
 248         // FIXME: Bleh, can't we just clear them all at once ?
 249         color_cache_.clear();
 250 }
 251
 252
 253 void GuiApplication::registerSocketCallback(int fd, boost::function<void()> func)
 254 {
 255         socket_callbacks_[fd] =
 256                 boost::shared_ptr<socket_callback>(new socket_callback(fd, func));
 257 }
 258
 259
 260 void GuiApplication::unregisterSocketCallback(int fd)
 261 {
 262         socket_callbacks_.erase(fd);
 263 }
 264
 265 ////////////////////////////////////////////////////////////////////////
 266 // X11 specific stuff goes here...
 267 #ifdef Q_WS_X11
 268 bool GuiApplication::x11EventFilter(XEvent * xev)
 269 {
 270         switch (xev->type) {
 271         case SelectionRequest:
 272                 lyxerr[Debug::GUI] << "X requested selection." << endl;
 273                 if (buffer_view_) {
 274                         lyx::docstring const sel = buffer_view_->requestSelection();
 275                         if (!sel.empty())
 276                                 selection_.put(sel);
 277                 }
 278                 break;
 279         case SelectionClear:
 280                 lyxerr[Debug::GUI] << "Lost selection." << endl;
 281                 if (buffer_view_)
 282                         buffer_view_->clearSelection();
 283                 break;
 284         }
 285         return false;
 286 }
 287 #endif
 288
 289
 290 ////////////////////////////////////////////////////////////////////////
 291 // Mac OSX specific stuff goes here...
 292
 293 #ifdef Q_WS_MACX
 294 namespace{
 295
 296 OSErr checkAppleEventForMissingParams(const AppleEvent& theAppleEvent)
 297  {
 298         DescType returnedType;
 299         Size actualSize;
 300         OSErr err = AEGetAttributePtr(&theAppleEvent, keyMissedKeywordAttr,
 301                                       typeWildCard, &returnedType, nil, 0,
 302                                       &actualSize);
 303         switch (err) {
 304         case errAEDescNotFound:
 305                 return noErr;
 306         case noErr:
 307                 return errAEEventNotHandled;
 308         default:
 309                 return err;
 310         }
 311  }
 312
 313 } // namespace
 314
 315 OSErr GuiApplication::handleOpenDocuments(const AppleEvent* inEvent,
 316                                        AppleEvent* /*reply*/, long /*refCon*/)
 317 {
 318         QString s_arg;
 319         AEDescList documentList;
 320         OSErr err = AEGetParamDesc(inEvent, keyDirectObject, typeAEList,
 321                                    &documentList);
 322         if (err != noErr)
 323                 return err;
 324
 325         err = checkAppleEventForMissingParams(*inEvent);
 326         if (err == noErr) {
 327                 long documentCount;
 328                 err = AECountItems(&documentList, &documentCount);
 329                 for (long documentIndex = 1;
 330                      err == noErr && documentIndex <= documentCount;
 331                      documentIndex++) {
 332                         DescType returnedType;
 333                         Size actualSize;
 334                         AEKeyword keyword;
 335                         FSRef ref;
 336                         char qstr_buf[1024];
 337                         err = AESizeOfNthItem(&documentList, documentIndex,
 338                                               &returnedType, &actualSize);
 339                         if (err == noErr) {
 340                                 err = AEGetNthPtr(&documentList, documentIndex,
 341                                                   typeFSRef, &keyword,
 342                                                   &returnedType, (Ptr)&ref,
 343                                                   sizeof(FSRef), &actualSize);
 344                                 if (err == noErr) {
 345                                         FSRefMakePath(&ref, (UInt8*)qstr_buf,
 346                                                       1024);
 347                                         s_arg=QString::fromUtf8(qstr_buf);
 348 //                                      buffer_view_->workAreaDispatch(
 349 //                                              FuncRequest(LFUN_FILE_OPEN,
 350 //                                                          fromqstr(s_arg)));
 351                                         break;
 352                                 }
 353                         }
 354                 } // for ...
 355         }
 356         AEDisposeDesc(&documentList);
 357
 358         return err;
 359 }
 360
 361 bool GuiApplication::macEventFilter(EventRef event)
 362 {
 363         if (GetEventClass(event) == kEventClassAppleEvent) {
 364                 EventRecord eventrec;
 365                 ConvertEventRefToEventRecord(event, &eventrec);
 366                 AEProcessAppleEvent(&eventrec);
 367
 368                 return false;
 369         }
 370         return false;
 371 }
 372
 373 #endif  // Q_WS_MACX
 374
 375 } // namespace frontend
 376 } // namespace lyx