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