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 // FIXME: this is needed for now because LyXFunc is still constructed
  25 // there.
  26 #include "frontends/Application_pimpl.h"
  27
  28 #include "graphics/LoaderQueue.h"
  29
  30 #include "support/lstrings.h"
  31 #include "support/os.h"
  32 #include "support/package.h"
  33
  34 #include "lyx_main.h"
  35 #include "lyxrc.h"
  36 #include "debug.h"
  37
  38 #include <QApplication>
  39 #include <QClipboard>
  40 #include <QEventLoop>
  41 #include <QLocale>
  42 #include <QLibraryInfo>
  43 #include <QTextCodec>
  44 #include <QTranslator>
  45
  46 #ifdef Q_WS_X11
  47 #include <X11/Xlib.h>
  48 #endif
  49
  50 #include <boost/bind.hpp>
  51
  52 using lyx::support::subst;
  53
  54 using std::string;
  55 using std::endl;
  56
  57 // in QLyXKeySym.C
  58 extern void initEncodings();
  59
  60 ///////////////////////////////////////////////////////////////
  61 // You can find other X11 and MACX specific stuff
  62 // at the end of this file...
  63 ///////////////////////////////////////////////////////////////
  64
  65 namespace {
  66
  67 int getDPI()
  68 {
  69         QWidget w;
  70         return int(0.5 * (w.logicalDpiX() + w.logicalDpiY()));
  71 }
  72
  73 } // namespace anon
  74
  75
  76 namespace lyx {
  77 namespace frontend {
  78
  79 GuiApplication::GuiApplication(int & argc, char ** argv)
  80         : QApplication(argc, argv), Application(argc, argv)
  81 {
  82 #ifdef Q_WS_X11
  83         // doubleClickInterval() is 400 ms on X11 witch is just too long.
  84         // On Windows and Mac OS X, the operating system's value is used.
  85         // On Microsoft Windows, calling this function sets the double
  86         // click interval for all applications. So we don't!
  87         QApplication::setDoubleClickInterval(300);
  88 #endif
  89
  90 #ifdef Q_WS_MACX
  91         AEInstallEventHandler(kCoreEventClass, kAEOpenDocuments,
  92                               NewAEEventHandlerUPP(handleOpenDocuments),
  93                               0, false);
  94 #endif
  95
  96         // install translation file for Qt built-in dialogs
  97         // These are only installed since Qt 3.2.x
  98         QTranslator qt_trans;
  99         QString language_name = QString("qt_") + QLocale::system().name();
 100         language_name.truncate(5);
 101         if (qt_trans.load(language_name,
 102                 QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
 103         {
 104                 qApp->installTranslator(&qt_trans);
 105                 // even if the language calls for RtL, don't do that
 106                 qApp->setLayoutDirection(Qt::LeftToRight);
 107                 lyxerr[Debug::GUI]
 108                         << "Successfully installed Qt translations for locale "
 109                         << fromqstr(language_name) << std::endl;
 110         } else
 111                 lyxerr[Debug::GUI]
 112                         << "Could not find  Qt translations for locale "
 113                         << fromqstr(language_name) << std::endl;
 114
 115 /*#ifdef Q_WS_MACX
 116         // These translations are meant to break Qt/Mac menu merging
 117         // algorithm on some entries. It lists the menu names that
 118         // should not be moved to the LyX menu
 119         QTranslator aqua_trans(0);
 120         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Setting", 0,
 121                                              "do_not_merge_me"));
 122         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Config", 0,
 123                                              "do_not_merge_me"));
 124         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Options", 0,
 125                                              "do_not_merge_me"));
 126         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Setup", 0,
 127                                              "do_not_merge_me"));
 128
 129         qApp->installTranslator(&aqua_trans);
 130 #endif
 131 */
 132         using namespace lyx::graphics;
 133
 134         Image::newImage = boost::bind(&QLImage::newImage);
 135         Image::loadableFormats = boost::bind(&QLImage::loadableFormats);
 136
 137         // needs to be done before reading lyxrc
 138         lyxrc.dpi = getDPI();
 139
 140         LoaderQueue::setPriority(10,100);
 141 }
 142
 143
 144 Clipboard& GuiApplication::clipboard()
 145 {
 146         return clipboard_;
 147 }
 148
 149
 150 Selection& GuiApplication::selection()
 151 {
 152         return selection_;
 153 }
 154
 155
 156 int const GuiApplication::exec()
 157 {
 158         return QApplication::exec();
 159 }
 160
 161
 162 void GuiApplication::exit(int status)
 163 {
 164         QApplication::exit(status);
 165 }
 166
 167
 168 // FIXME: this whole method needs to be moved to Application.
 169 LyXView & GuiApplication::createView(unsigned int width,
 170                                                                           unsigned int height,
 171                                                                           int posx, int posy,
 172                                                                           bool maximize)
 173 {
 174         // this can't be done before because it needs the Languages object
 175         initEncodings();
 176
 177         int view_id = gui().newView(width, height);
 178         GuiView & view = static_cast<GuiView &> (gui().view(view_id));
 179
 180         pimpl_->lyxfunc_.reset(new LyXFunc(&view));
 181
 182         // FIXME: for now we assume that there is only one LyXView with id = 0.
 183         /*int workArea_id_ =*/ gui().newWorkArea(width, height, 0);
 184         //WorkArea * workArea_ = & theApp->gui().workArea(workArea_id_);
 185
 186         LyX::ref().addLyXView(&view);
 187
 188         view.init();
 189
 190         // FIXME: put this initialisation code in GuiView accessible via
 191         // a pure virtual method in LyXView.
 192
 193         // only true when the -geometry option was NOT used
 194         if (width != 0 && height != 0) {
 195                 if (posx != -1 && posy != -1) {
 196 #ifdef Q_OS_WIN32
 197                         // FIXME: use only setGeoemtry when Trolltech has
 198                         // fixed the qt4/X11 bug
 199                         view.setGeometry(posx, posy,width, height);
 200 #else
 201                         view.resize(width, height);
 202                         view.move(posx, posy);
 203 #endif
 204                 } else {
 205                         view.resize(width, height);
 206                 }
 207
 208                 if (maximize)
 209                         view.setWindowState(Qt::WindowMaximized);
 210         }
 211
 212         view.show();
 213
 214         return view;
 215 }
 216
 217
 218 ////////////////////////////////////////////////////////////////////////
 219 // X11 specific stuff goes here...
 220 #ifdef Q_WS_X11
 221 bool GuiApplication::x11EventFilter(XEvent * xev)
 222 {
 223         switch (xev->type) {
 224         case SelectionRequest:
 225                 lyxerr[Debug::GUI] << "X requested selection." << endl;
 226                 if (buffer_view_) {
 227                         lyx::docstring const sel = buffer_view_->requestSelection();
 228                         if (!sel.empty())
 229                                 selection_.put(sel);
 230                 }
 231                 break;
 232         case SelectionClear:
 233                 lyxerr[Debug::GUI] << "Lost selection." << endl;
 234                 if (buffer_view_)
 235                         buffer_view_->clearSelection();
 236                 break;
 237         }
 238         return false;
 239 }
 240 #endif
 241
 242
 243 ////////////////////////////////////////////////////////////////////////
 244 // Mac OSX specific stuff goes here...
 245
 246 #ifdef Q_WS_MACX
 247 namespace{
 248
 249 OSErr checkAppleEventForMissingParams(const AppleEvent& theAppleEvent)
 250  {
 251         DescType returnedType;
 252         Size actualSize;
 253         OSErr err = AEGetAttributePtr(&theAppleEvent, keyMissedKeywordAttr,
 254                                       typeWildCard, &returnedType, nil, 0,
 255                                       &actualSize);
 256         switch (err) {
 257         case errAEDescNotFound:
 258                 return noErr;
 259         case noErr:
 260                 return errAEEventNotHandled;
 261         default:
 262                 return err;
 263         }
 264  }
 265
 266 } // namespace
 267
 268 OSErr GuiApplication::handleOpenDocuments(const AppleEvent* inEvent,
 269                                        AppleEvent* /*reply*/, long /*refCon*/)
 270 {
 271         QString s_arg;
 272         AEDescList documentList;
 273         OSErr err = AEGetParamDesc(inEvent, keyDirectObject, typeAEList,
 274                                    &documentList);
 275         if (err != noErr)
 276                 return err;
 277
 278         err = checkAppleEventForMissingParams(*inEvent);
 279         if (err == noErr) {
 280                 long documentCount;
 281                 err = AECountItems(&documentList, &documentCount);
 282                 for (long documentIndex = 1;
 283                      err == noErr && documentIndex <= documentCount;
 284                      documentIndex++) {
 285                         DescType returnedType;
 286                         Size actualSize;
 287                         AEKeyword keyword;
 288                         FSRef ref;
 289                         char qstr_buf[1024];
 290                         err = AESizeOfNthItem(&documentList, documentIndex,
 291                                               &returnedType, &actualSize);
 292                         if (err == noErr) {
 293                                 err = AEGetNthPtr(&documentList, documentIndex,
 294                                                   typeFSRef, &keyword,
 295                                                   &returnedType, (Ptr)&ref,
 296                                                   sizeof(FSRef), &actualSize);
 297                                 if (err == noErr) {
 298                                         FSRefMakePath(&ref, (UInt8*)qstr_buf,
 299                                                       1024);
 300                                         s_arg=QString::fromUtf8(qstr_buf);
 301 //                                      buffer_view_->workAreaDispatch(
 302 //                                              FuncRequest(LFUN_FILE_OPEN,
 303 //                                                          fromqstr(s_arg)));
 304                                         break;
 305                                 }
 306                         }
 307                 } // for ...
 308         }
 309         AEDisposeDesc(&documentList);
 310
 311         return err;
 312 }
 313
 314 bool GuiApplication::macEventFilter(EventRef event)
 315 {
 316         if (GetEventClass(event) == kEventClassAppleEvent) {
 317                 EventRecord eventrec;
 318                 ConvertEventRefToEventRecord(event, &eventrec);
 319                 AEProcessAppleEvent(&eventrec);
 320
 321                 return false;
 322         }
 323         return false;
 324 }
 325
 326 #endif  // Q_WS_MACX
 327
 328 } // namespace frontend
 329 } // namespace lyx