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
  20 #include "graphics/LoaderQueue.h"
  21
  22 #include "support/lstrings.h"
  23 #include "support/os.h"
  24 #include "support/package.h"
  25
  26 #include "BufferView.h"
  27 #include "lyx_main.h"
  28 #include "lyxrc.h"
  29 #include "debug.h"
  30
  31 #include <QApplication>
  32 #include <QClipboard>
  33 #include <QEventLoop>
  34 #include <QLocale>
  35 #include <QLibraryInfo>
  36 #include <QTextCodec>
  37 #include <QTranslator>
  38 #include <QWidget>
  39
  40 #ifdef Q_WS_X11
  41 #include <X11/Xlib.h>
  42 #endif
  43
  44 #include <boost/bind.hpp>
  45
  46 using lyx::support::subst;
  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 namespace frontend {
  72
  73 GuiApplication::GuiApplication(int & argc, char ** argv)
  74         : QApplication(argc, argv), Application(argc, argv)
  75 {
  76 #ifdef Q_WS_X11
  77         // doubleClickInterval() is 400 ms on X11 witch is just too long.
  78         // On Windows and Mac OS X, the operating system's value is used.
  79         // On Microsoft Windows, calling this function sets the double
  80         // click interval for all applications. So we don't!
  81         QApplication::setDoubleClickInterval(300);
  82 #endif
  83
  84 #ifdef Q_WS_MACX
  85         AEInstallEventHandler(kCoreEventClass, kAEOpenDocuments,
  86                               NewAEEventHandlerUPP(handleOpenDocuments),
  87                               0, false);
  88 #endif
  89
  90         // install translation file for Qt built-in dialogs
  91         // These are only installed since Qt 3.2.x
  92         QTranslator qt_trans;
  93         QString language_name = QString("qt_") + QLocale::system().name();
  94         language_name.truncate(5);
  95         if (qt_trans.load(language_name,
  96                 QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
  97         {
  98                 qApp->installTranslator(&qt_trans);
  99                 // even if the language calls for RtL, don't do that
 100                 qApp->setLayoutDirection(Qt::LeftToRight);
 101                 lyxerr[Debug::GUI]
 102                         << "Successfully installed Qt translations for locale "
 103                         << fromqstr(language_name) << std::endl;
 104         } else
 105                 lyxerr[Debug::GUI]
 106                         << "Could not find  Qt translations for locale "
 107                         << fromqstr(language_name) << std::endl;
 108
 109 /*#ifdef Q_WS_MACX
 110         // These translations are meant to break Qt/Mac menu merging
 111         // algorithm on some entries. It lists the menu names that
 112         // should not be moved to the LyX menu
 113         QTranslator aqua_trans(0);
 114         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Setting", 0,
 115                                              "do_not_merge_me"));
 116         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Config", 0,
 117                                              "do_not_merge_me"));
 118         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Options", 0,
 119                                              "do_not_merge_me"));
 120         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Setup", 0,
 121                                              "do_not_merge_me"));
 122
 123         qApp->installTranslator(&aqua_trans);
 124 #endif
 125 */
 126         using namespace lyx::graphics;
 127
 128         Image::newImage = boost::bind(&QLImage::newImage);
 129         Image::loadableFormats = boost::bind(&QLImage::loadableFormats);
 130
 131         // needs to be done before reading lyxrc
 132         lyxrc.dpi = getDPI();
 133
 134         LoaderQueue::setPriority(10,100);
 135 }
 136
 137
 138 Clipboard& GuiApplication::clipboard()
 139 {
 140         return clipboard_;
 141 }
 142
 143
 144 Selection& GuiApplication::selection()
 145 {
 146         return selection_;
 147 }
 148
 149
 150 int const GuiApplication::exec()
 151 {
 152         return QApplication::exec();
 153 }
 154
 155
 156 void GuiApplication::exit(int status)
 157 {
 158         QApplication::exit(status);
 159 }
 160
 161
 162
 163
 164 ////////////////////////////////////////////////////////////////////////
 165 // X11 specific stuff goes here...
 166 #ifdef Q_WS_X11
 167 bool GuiApplication::x11EventFilter(XEvent * xev)
 168 {
 169         switch (xev->type) {
 170         case SelectionRequest:
 171                 lyxerr[Debug::GUI] << "X requested selection." << endl;
 172                 if (buffer_view_) {
 173                         lyx::docstring const sel = buffer_view_->requestSelection();
 174                         if (!sel.empty())
 175                                 selection_.put(sel);
 176                 }
 177                 break;
 178         case SelectionClear:
 179                 lyxerr[Debug::GUI] << "Lost selection." << endl;
 180                 if (buffer_view_)
 181                         buffer_view_->clearSelection();
 182                 break;
 183         }
 184         return false;
 185 }
 186 #endif
 187
 188
 189 ////////////////////////////////////////////////////////////////////////
 190 // Mac OSX specific stuff goes here...
 191
 192 #ifdef Q_WS_MACX
 193 namespace{
 194
 195 OSErr checkAppleEventForMissingParams(const AppleEvent& theAppleEvent)
 196  {
 197         DescType returnedType;
 198         Size actualSize;
 199         OSErr err = AEGetAttributePtr(&theAppleEvent, keyMissedKeywordAttr,
 200                                       typeWildCard, &returnedType, nil, 0,
 201                                       &actualSize);
 202         switch (err) {
 203         case errAEDescNotFound:
 204                 return noErr;
 205         case noErr:
 206                 return errAEEventNotHandled;
 207         default:
 208                 return err;
 209         }
 210  }
 211
 212 } // namespace
 213
 214 OSErr GuiApplication::handleOpenDocuments(const AppleEvent* inEvent,
 215                                        AppleEvent* /*reply*/, long /*refCon*/)
 216 {
 217         QString s_arg;
 218         AEDescList documentList;
 219         OSErr err = AEGetParamDesc(inEvent, keyDirectObject, typeAEList,
 220                                    &documentList);
 221         if (err != noErr)
 222                 return err;
 223
 224         err = checkAppleEventForMissingParams(*inEvent);
 225         if (err == noErr) {
 226                 long documentCount;
 227                 err = AECountItems(&documentList, &documentCount);
 228                 for (long documentIndex = 1;
 229                      err == noErr && documentIndex <= documentCount;
 230                      documentIndex++) {
 231                         DescType returnedType;
 232                         Size actualSize;
 233                         AEKeyword keyword;
 234                         FSRef ref;
 235                         char qstr_buf[1024];
 236                         err = AESizeOfNthItem(&documentList, documentIndex,
 237                                               &returnedType, &actualSize);
 238                         if (err == noErr) {
 239                                 err = AEGetNthPtr(&documentList, documentIndex,
 240                                                   typeFSRef, &keyword,
 241                                                   &returnedType, (Ptr)&ref,
 242                                                   sizeof(FSRef), &actualSize);
 243                                 if (err == noErr) {
 244                                         FSRefMakePath(&ref, (UInt8*)qstr_buf,
 245                                                       1024);
 246                                         s_arg=QString::fromUtf8(qstr_buf);
 247 //                                      buffer_view_->workAreaDispatch(
 248 //                                              FuncRequest(LFUN_FILE_OPEN,
 249 //                                                          fromqstr(s_arg)));
 250                                         break;
 251                                 }
 252                         }
 253                 } // for ...
 254         }
 255         AEDisposeDesc(&documentList);
 256
 257         return err;
 258 }
 259
 260 bool GuiApplication::macEventFilter(EventRef event)
 261 {
 262         if (GetEventClass(event) == kEventClassAppleEvent) {
 263                 EventRecord eventrec;
 264                 ConvertEventRefToEventRecord(event, &eventrec);
 265                 AEProcessAppleEvent(&eventrec);
 266
 267                 return false;
 268         }
 269         return false;
 270 }
 271
 272 #endif  // Q_WS_MACX
 273
 274 } // namespace frontend
 275 } // namespace lyx