src/frontends/qt3/GuiApplication.C

   1 /**
   2  * \file qt3/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 "frontends/LyXView.h"
  16 #include "frontends/WorkArea.h"
  17
  18 #include "GuiApplication.h"
  19
  20 #include "QtView.h"
  21 #include "GuiWorkArea.h"
  22 #include "qt_helpers.h"
  23 #include "QLImage.h"
  24
  25 #include "BufferView.h"
  26
  27 // FIXME: this is needed for now because LyXFunc is still constructed
  28 // there.
  29 #include "frontends/Application_pimpl.h"
  30
  31 #include "graphics/LoaderQueue.h"
  32
  33 #include "support/lstrings.h"
  34 #include "support/os.h"
  35 #include "support/package.h"
  36
  37 #include "lyx_main.h"
  38 #include "lyxrc.h"
  39 #include "debug.h"
  40
  41 #include <qapplication.h>
  42 #include <qclipboard.h>
  43 #include <qeventloop.h>
  44 #include <qlocale.h>
  45 #include <qpaintdevicemetrics.h>
  46 #include <qtextcodec.h>
  47 #include <qtranslator.h>
  48
  49 #ifdef Q_WS_X11
  50 #include <X11/Xlib.h>
  51 #endif
  52
  53 #include <boost/bind.hpp>
  54
  55 using lyx::support::subst;
  56
  57 using std::string;
  58 using std::endl;
  59
  60 // in QLyXKeySym.C
  61 extern void initEncodings();
  62
  63 ///////////////////////////////////////////////////////////////
  64 // You can find other X11 and MACX specific stuff
  65 // at the end of this file...
  66 ///////////////////////////////////////////////////////////////
  67
  68 namespace {
  69
  70 int getDPI()
  71 {
  72         QWidget w;
  73         QPaintDeviceMetrics pdm(&w);
  74         return int(0.5 * (pdm.logicalDpiX() + pdm.logicalDpiY()));
  75 }
  76
  77 } // namespace anon
  78
  79
  80 namespace lyx {
  81 namespace frontend {
  82
  83 GuiApplication::GuiApplication(int & argc, char ** argv)
  84         : QApplication(argc, argv), Application(argc, argv)
  85 {
  86 #ifdef Q_WS_X11
  87         // doubleClickInterval() is 400 ms on X11 witch is just too long.
  88         // On Windows and Mac OS X, the operating system's value is used.
  89         // On Microsoft Windows, calling this function sets the double
  90         // click interval for all applications. So we don't!
  91         QApplication::setDoubleClickInterval(300);
  92 #endif
  93
  94 #ifdef Q_WS_MACX
  95         AEInstallEventHandler(kCoreEventClass, kAEOpenDocuments,
  96                               NewAEEventHandlerUPP(handleOpenDocuments),
  97                               0, false);
  98 #endif
  99
 100 #if QT_VERSION >= 0x030200
 101         // install translation file for Qt built-in dialogs
 102         // These are only installed since Qt 3.2.x
 103         QTranslator qt_trans(0);
 104         if (qt_trans.load(QString("qt_") + QTextCodec::locale(),
 105                                 qInstallPathTranslations())) {
 106                 qApp->installTranslator(&qt_trans);
 107                 // even if the language calls for RtL, don't do that
 108                 qApp->setReverseLayout(false);
 109                 lyxerr[Debug::GUI]
 110                         << "Successfully installed Qt translations for locale "
 111                         << QTextCodec::locale() << std::endl;
 112         } else
 113                 lyxerr[Debug::GUI]
 114                         << "Could not find  Qt translations for locale "
 115                         << QTextCodec::locale() << std::endl;
 116 #endif
 117
 118 #ifdef Q_WS_MACX
 119         // These translations are meant to break Qt/Mac menu merging
 120         // algorithm on some entries. It lists the menu names that
 121         // should not be moved to the LyX menu
 122         QTranslator aqua_trans(0);
 123         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Setting", 0,
 124                                              "do_not_merge_me"));
 125         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Config", 0,
 126                                              "do_not_merge_me"));
 127         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Options", 0,
 128                                              "do_not_merge_me"));
 129         aqua_trans.insert(QTranslatorMessage("QMenuBar", "Setup", 0,
 130                                              "do_not_merge_me"));
 131
 132         qApp->installTranslator(&aqua_trans);
 133 #endif
 134
 135         using namespace lyx::graphics;
 136
 137         Image::newImage = boost::bind(&QLImage::newImage);
 138         Image::loadableFormats = boost::bind(&QLImage::loadableFormats);
 139
 140         // needs to be done before reading lyxrc
 141         lyxrc.dpi = getDPI();
 142
 143         LoaderQueue::setPriority(10,100);
 144 }
 145
 146
 147 Clipboard& GuiApplication::clipboard()
 148 {
 149         return clipboard_;
 150 }
 151
 152
 153 Selection& GuiApplication::selection()
 154 {
 155         return selection_;
 156 }
 157
 158
 159 int const GuiApplication::exec()
 160 {
 161         return QApplication::exec();
 162 }
 163
 164
 165 void GuiApplication::exit(int status)
 166 {
 167         QApplication::exit(status);
 168 }
 169
 170
 171 // FIXME: this whole method needs to be moved to Application.
 172 LyXView & GuiApplication::createView(unsigned int width,
 173                                                                           unsigned int height,
 174                                                                           int posx, int posy,
 175                                                                           bool maximize)
 176 {
 177         // this can't be done before because it needs the Languages object
 178         initEncodings();
 179
 180         int view_id = gui().newView(width, height);
 181         QtView & view = static_cast<QtView &> (gui().view(view_id));
 182
 183         pimpl_->lyxfunc_.reset(new LyXFunc(&view));
 184
 185         // FIXME: for now we assume that there is only one LyXView with id = 0.
 186         /*int workArea_id_ =*/ gui().newWorkArea(width, height, 0);
 187         //WorkArea * workArea_ = & theApp->gui().workArea(workArea_id_);
 188
 189         LyX::ref().addLyXView(&view);
 190
 191         view.init();
 192
 193         // FIXME: put this initialisation code in GuiView accessible via
 194         // a pure virtual method in LyXView.
 195
 196         // only true when the -geometry option was NOT used
 197         if (width != 0 && height != 0) {
 198                 view.initFloatingGeometry(QRect(posx, posy, width, height));
 199                 view.resize(width, height);
 200                 if (posx != -1 && posy != -1)
 201                         view.move(posx, posy);
 202                 view.show();
 203                 if (maximize)
 204                         view.setWindowState(Qt::WindowMaximized);
 205         } else
 206                 view.show();
 207
 208         return view;
 209 }
 210
 211
 212 ////////////////////////////////////////////////////////////////////////
 213 // X11 specific stuff goes here...
 214 #ifdef Q_WS_X11
 215 bool GuiApplication::x11EventFilter(XEvent * xev)
 216 {
 217         switch (xev->type) {
 218         case SelectionRequest:
 219                 lyxerr[Debug::GUI] << "X requested selection." << endl;
 220                 if (buffer_view_) {
 221                         lyx::docstring const sel = buffer_view_->requestSelection();
 222                         if (!sel.empty())
 223                                 selection_.put(sel);
 224                 }
 225                 break;
 226         case SelectionClear:
 227                 lyxerr[Debug::GUI] << "Lost selection." << endl;
 228                 if (buffer_view_)
 229                         buffer_view_->clearSelection();
 230                 break;
 231         }
 232         return false;
 233 }
 234 #endif
 235
 236
 237 ////////////////////////////////////////////////////////////////////////
 238 // Mac OSX specific stuff goes here...
 239
 240 #ifdef Q_WS_MACX
 241 namespace{
 242
 243 OSErr checkAppleEventForMissingParams(const AppleEvent& theAppleEvent)
 244  {
 245         DescType returnedType;
 246         Size actualSize;
 247         OSErr err = AEGetAttributePtr(&theAppleEvent, keyMissedKeywordAttr,
 248                                       typeWildCard, &returnedType, nil, 0,
 249                                       &actualSize);
 250         switch (err) {
 251         case errAEDescNotFound:
 252                 return noErr;
 253         case noErr:
 254                 return errAEEventNotHandled;
 255         default:
 256                 return err;
 257         }
 258  }
 259
 260 } // namespace
 261
 262 OSErr GuiApplication::handleOpenDocuments(const AppleEvent* inEvent,
 263                                        AppleEvent* /*reply*/, long /*refCon*/)
 264 {
 265         QString s_arg;
 266         AEDescList documentList;
 267         OSErr err = AEGetParamDesc(inEvent, keyDirectObject, typeAEList,
 268                                    &documentList);
 269         if (err != noErr)
 270                 return err;
 271
 272         err = checkAppleEventForMissingParams(*inEvent);
 273         if (err == noErr) {
 274                 long documentCount;
 275                 err = AECountItems(&documentList, &documentCount);
 276                 for (long documentIndex = 1;
 277                      err == noErr && documentIndex <= documentCount;
 278                      documentIndex++) {
 279                         DescType returnedType;
 280                         Size actualSize;
 281                         AEKeyword keyword;
 282                         FSRef ref;
 283                         char qstr_buf[1024];
 284                         err = AESizeOfNthItem(&documentList, documentIndex,
 285                                               &returnedType, &actualSize);
 286                         if (err == noErr) {
 287                                 err = AEGetNthPtr(&documentList, documentIndex,
 288                                                   typeFSRef, &keyword,
 289                                                   &returnedType, (Ptr)&ref,
 290                                                   sizeof(FSRef), &actualSize);
 291                                 if (err == noErr) {
 292                                         FSRefMakePath(&ref, (UInt8*)qstr_buf,
 293                                                       1024);
 294                                         s_arg=QString::fromUtf8(qstr_buf);
 295 //                                      buffer_view_->workAreaDispatch(
 296 //                                              FuncRequest(LFUN_FILE_OPEN,
 297 //                                                          fromqstr(s_arg)));
 298                                         break;
 299                                 }
 300                         }
 301                 } // for ...
 302         }
 303         AEDisposeDesc(&documentList);
 304
 305         return err;
 306 }
 307
 308 bool GuiApplication::macEventFilter(EventRef event)
 309 {
 310         if (GetEventClass(event) == kEventClassAppleEvent) {
 311                 EventRecord eventrec;
 312                 ConvertEventRefToEventRecord(event, &eventrec);
 313                 AEProcessAppleEvent(&eventrec);
 314
 315                 return false;
 316         }
 317         return false;
 318 }
 319
 320 #endif  // Q_WS_MACX
 321
 322 } // namespace frontend
 323 } // namespace lyx