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 "GuiView.h"
  18 #include "GuiWorkArea.h"
  19 #include "qt_helpers.h"
  20 #include "QLImage.h"
  21
  22 #include "BufferView.h"
  23
  24 #include "graphics/LoaderQueue.h"
  25
  26 #include "support/lstrings.h"
  27 #include "support/os.h"
  28 #include "support/package.h"
  29
  30 #include "lyx_main.h"
  31 #include "lyxrc.h"
  32 #include "debug.h"
  33
  34 #include <QApplication>
  35 #include <QClipboard>
  36 #include <QEventLoop>
  37 #include <QLocale>
  38 #include <QLibraryInfo>
  39 #include <QTextCodec>
  40 #include <QTranslator>
  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 namespace lyx {
  73 namespace frontend {
  74
  75 GuiApplication::GuiApplication(int & argc, char ** argv)
  76         : QApplication(argc, argv), Application(argc, argv)
  77 {
  78 #ifdef Q_WS_X11
  79         // doubleClickInterval() is 400 ms on X11 witch is just too long.
  80         // On Windows and Mac OS X, the operating system's value is used.
  81         // On Microsoft Windows, calling this function sets the double
  82         // click interval for all applications. So we don't!
  83         QApplication::setDoubleClickInterval(300);
  84 #endif
  85
  86 #ifdef Q_WS_MACX
  87         AEInstallEventHandler(kCoreEventClass, kAEOpenDocuments,
  88                               NewAEEventHandlerUPP(handleOpenDocuments),
  89                               0, false);
  90 #endif
  91
  92         // install translation file for Qt built-in dialogs
  93         // These are only installed since Qt 3.2.x
  94         QTranslator qt_trans;
  95         QString language_name = QString("qt_") + QLocale::system().name();
  96         language_name.truncate(5);
  97         if (qt_trans.load(language_name,
  98                 QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
  99         {
 100                 qApp->installTranslator(&qt_trans);
 101                 // even if the language calls for RtL, don't do that
 102                 qApp->setLayoutDirection(Qt::LeftToRight);
 103                 lyxerr[Debug::GUI]
 104                         << "Successfully installed Qt translations for locale "
 105                         << fromqstr(language_name) << std::endl;
 106         } else
 107                 lyxerr[Debug::GUI]
 108                         << "Could not find  Qt translations for locale "
 109                         << fromqstr(language_name) << std::endl;
 110
 111 /*#ifdef Q_WS_MACX
 112         // These translations are meant to break Qt/Mac menu merging
 113         // algorithm on some entries. It lists the menu names that
 114         // should not be moved to the LyX menu
 115         QTranslator aqua_trans(0);
 116         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Setting", 0,
 117                                              "do_not_merge_me"));
 118         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Config", 0,
 119                                              "do_not_merge_me"));
 120         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Options", 0,
 121                                              "do_not_merge_me"));
 122         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Setup", 0,
 123                                              "do_not_merge_me"));
 124
 125         qApp->installTranslator(&aqua_trans);
 126 #endif
 127 */
 128         using namespace lyx::graphics;
 129
 130         Image::newImage = boost::bind(&QLImage::newImage);
 131         Image::loadableFormats = boost::bind(&QLImage::loadableFormats);
 132
 133         // needs to be done before reading lyxrc
 134         lyxrc.dpi = getDPI();
 135
 136         LoaderQueue::setPriority(10,100);
 137 }
 138
 139
 140 int const GuiApplication::exec()
 141 {
 142         return QApplication::exec();
 143 }
 144
 145
 146 void GuiApplication::exit(int status)
 147 {
 148         QApplication::exit(status);
 149 }
 150
 151
 152 // FIXME: this whole method needs to be moved to Application.
 153 LyXView & GuiApplication::createView(unsigned int width,
 154                                                                           unsigned int height,
 155                                                                           int posx, int posy,
 156                                                                           bool maximize)
 157 {
 158         // this can't be done before because it needs the Languages object
 159         initEncodings();
 160
 161         int view_id = gui().newView(width, height);
 162         GuiView & view = static_cast<GuiView &> (gui().view(view_id));
 163
 164         lyxfunc_.reset(new LyXFunc(&view));
 165
 166         // FIXME: for now we assume that there is only one LyXView with id = 0.
 167         /*int workArea_id_ =*/ gui().newWorkArea(width, height, 0);
 168         //WorkArea * workArea_ = & theApp->gui().workArea(workArea_id_);
 169
 170         LyX::ref().addLyXView(&view);
 171
 172         view.init();
 173
 174         // FIXME: put this initialisation code in GuiView accessible via
 175         // a pure virtual method in LyXView.
 176
 177         // only true when the -geometry option was NOT used
 178         if (width != 0 && height != 0) {
 179                 if (posx != -1 && posy != -1) {
 180 #ifdef Q_OS_WIN32
 181                         // FIXME: use only setGeoemtry when Trolltech has
 182                         // fixed the qt4/X11 bug
 183                         view.setGeometry(posx, posy,width, height);
 184 #else
 185                         view.resize(width, height);
 186                         view.move(posx, posy);
 187 #endif
 188                 } else {
 189                         view.resize(width, height);
 190                 }
 191
 192                 if (maximize)
 193                         view.setWindowState(Qt::WindowMaximized);
 194         }
 195
 196         view.show();
 197
 198         return view;
 199 }
 200
 201
 202 ////////////////////////////////////////////////////////////////////////
 203 // X11 specific stuff goes here...
 204 #ifdef Q_WS_X11
 205 bool GuiApplication::x11EventFilter(XEvent * xev)
 206 {
 207         switch (xev->type) {
 208         case SelectionRequest:
 209                 lyxerr[Debug::GUI] << "X requested selection." << endl;
 210                 if (buffer_view_) {
 211                         lyx::docstring const sel = buffer_view_->requestSelection();
 212                         if (!sel.empty())
 213                                 gui_.selection().put(sel);
 214                 }
 215                 break;
 216         case SelectionClear:
 217                 lyxerr[Debug::GUI] << "Lost selection." << endl;
 218                 if (buffer_view_)
 219                         buffer_view_->clearSelection();
 220                 break;
 221         }
 222         return false;
 223 }
 224 #endif
 225
 226
 227 ////////////////////////////////////////////////////////////////////////
 228 // Mac OSX specific stuff goes here...
 229
 230 #ifdef Q_WS_MACX
 231 namespace{
 232
 233 OSErr checkAppleEventForMissingParams(const AppleEvent& theAppleEvent)
 234  {
 235         DescType returnedType;
 236         Size actualSize;
 237         OSErr err = AEGetAttributePtr(&theAppleEvent, keyMissedKeywordAttr,
 238                                       typeWildCard, &returnedType, nil, 0,
 239                                       &actualSize);
 240         switch (err) {
 241         case errAEDescNotFound:
 242                 return noErr;
 243         case noErr:
 244                 return errAEEventNotHandled;
 245         default:
 246                 return err;
 247         }
 248  }
 249
 250 } // namespace
 251
 252 OSErr GuiApplication::handleOpenDocuments(const AppleEvent* inEvent,
 253                                        AppleEvent* /*reply*/, long /*refCon*/)
 254 {
 255         QString s_arg;
 256         AEDescList documentList;
 257         OSErr err = AEGetParamDesc(inEvent, keyDirectObject, typeAEList,
 258                                    &documentList);
 259         if (err != noErr)
 260                 return err;
 261
 262         err = checkAppleEventForMissingParams(*inEvent);
 263         if (err == noErr) {
 264                 long documentCount;
 265                 err = AECountItems(&documentList, &documentCount);
 266                 for (long documentIndex = 1;
 267                      err == noErr && documentIndex <= documentCount;
 268                      documentIndex++) {
 269                         DescType returnedType;
 270                         Size actualSize;
 271                         AEKeyword keyword;
 272                         FSRef ref;
 273                         char qstr_buf[1024];
 274                         err = AESizeOfNthItem(&documentList, documentIndex,
 275                                               &returnedType, &actualSize);
 276                         if (err == noErr) {
 277                                 err = AEGetNthPtr(&documentList, documentIndex,
 278                                                   typeFSRef, &keyword,
 279                                                   &returnedType, (Ptr)&ref,
 280                                                   sizeof(FSRef), &actualSize);
 281                                 if (err == noErr) {
 282                                         FSRefMakePath(&ref, (UInt8*)qstr_buf,
 283                                                       1024);
 284                                         s_arg=QString::fromUtf8(qstr_buf);
 285 //                                      buffer_view_->workAreaDispatch(
 286 //                                              FuncRequest(LFUN_FILE_OPEN,
 287 //                                                          fromqstr(s_arg)));
 288                                         break;
 289                                 }
 290                         }
 291                 } // for ...
 292         }
 293         AEDisposeDesc(&documentList);
 294
 295         return err;
 296 }
 297
 298 bool GuiApplication::macEventFilter(EventRef event)
 299 {
 300         if (GetEventClass(event) == kEventClassAppleEvent) {
 301                 EventRecord eventrec;
 302                 ConvertEventRefToEventRecord(event, &eventrec);
 303                 AEProcessAppleEvent(&eventrec);
 304
 305                 return false;
 306         }
 307         return false;
 308 }
 309
 310 #endif  // Q_WS_MACX
 311
 312 } // namespace frontend
 313 } // namespace lyx