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 "qt_helpers.h"
  21 #include "QLImage.h"
  22
  23 #include "graphics/LoaderQueue.h"
  24
  25 #include "support/lstrings.h"
  26 #include "support/os.h"
  27 #include "support/package.h"
  28
  29 #include "BufferView.h"
  30 #include "lyx_main.h"
  31 #include "lyxrc.h"
  32 #include "debug.h"
  33
  34 #include <qapplication.h>
  35 #include <qclipboard.h>
  36 #include <qeventloop.h>
  37 #include <qlocale.h>
  38 #include <qpaintdevicemetrics.h>
  39 #include <qtextcodec.h>
  40 #include <qtranslator.h>
  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         QPaintDeviceMetrics pdm(&w);
  67         return int(0.5 * (pdm.logicalDpiX() + pdm.logicalDpiY()));
  68 }
  69
  70 } // namespace anon
  71
  72
  73 namespace lyx {
  74 namespace frontend {
  75
  76 GuiApplication::GuiApplication(int & argc, char ** argv)
  77         : QApplication(argc, argv), Application(argc, argv)
  78 {
  79 #ifdef Q_WS_X11
  80         // doubleClickInterval() is 400 ms on X11 witch is just too long.
  81         // On Windows and Mac OS X, the operating system's value is used.
  82         // On Microsoft Windows, calling this function sets the double
  83         // click interval for all applications. So we don't!
  84         QApplication::setDoubleClickInterval(300);
  85 #endif
  86
  87 #ifdef Q_WS_MACX
  88         AEInstallEventHandler(kCoreEventClass, kAEOpenDocuments,
  89                               NewAEEventHandlerUPP(handleOpenDocuments),
  90                               0, false);
  91 #endif
  92
  93 #if QT_VERSION >= 0x030200
  94         // install translation file for Qt built-in dialogs
  95         // These are only installed since Qt 3.2.x
  96         QTranslator qt_trans(0);
  97         if (qt_trans.load(QString("qt_") + QTextCodec::locale(),
  98                                 qInstallPathTranslations())) {
  99                 qApp->installTranslator(&qt_trans);
 100                 // even if the language calls for RtL, don't do that
 101                 qApp->setReverseLayout(false);
 102                 lyxerr[Debug::GUI]
 103                         << "Successfully installed Qt translations for locale "
 104                         << QTextCodec::locale() << std::endl;
 105         } else
 106                 lyxerr[Debug::GUI]
 107                         << "Could not find  Qt translations for locale "
 108                         << QTextCodec::locale() << std::endl;
 109 #endif
 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 Clipboard& GuiApplication::clipboard()
 141 {
 142         return clipboard_;
 143 }
 144
 145
 146 Selection& GuiApplication::selection()
 147 {
 148         return selection_;
 149 }
 150
 151
 152 int const GuiApplication::exec()
 153 {
 154         return QApplication::exec();
 155 }
 156
 157
 158 void GuiApplication::exit(int status)
 159 {
 160         QApplication::exit(status);
 161 }
 162
 163
 164 string const GuiApplication::romanFontName()
 165 {
 166         QFont font;
 167         font.setStyleHint(QFont::Serif);
 168         font.setFamily("serif");
 169
 170         return fromqstr(QFontInfo(font).family());
 171 }
 172
 173
 174 string const GuiApplication::sansFontName()
 175 {
 176         QFont font;
 177         font.setStyleHint(QFont::SansSerif);
 178         font.setFamily("sans");
 179
 180         return fromqstr(QFontInfo(font).family());
 181 }
 182
 183
 184 string const GuiApplication::typewriterFontName()
 185 {
 186         QFont font;
 187         font.setStyleHint(QFont::TypeWriter);
 188         font.setFamily("monospace");
 189
 190         return fromqstr(QFontInfo(font).family());
 191 }
 192
 193
 194 ////////////////////////////////////////////////////////////////////////
 195 // X11 specific stuff goes here...
 196 #ifdef Q_WS_X11
 197 bool GuiApplication::x11EventFilter(XEvent * xev)
 198 {
 199         switch (xev->type) {
 200         case SelectionRequest:
 201                 lyxerr[Debug::GUI] << "X requested selection." << endl;
 202                 if (buffer_view_) {
 203                         lyx::docstring const sel = buffer_view_->requestSelection();
 204                         if (!sel.empty())
 205                                 selection_.put(sel);
 206                 }
 207                 break;
 208         case SelectionClear:
 209                 lyxerr[Debug::GUI] << "Lost selection." << endl;
 210                 if (buffer_view_)
 211                         buffer_view_->clearSelection();
 212                 break;
 213         }
 214         return false;
 215 }
 216 #endif
 217
 218
 219 ////////////////////////////////////////////////////////////////////////
 220 // Mac OSX specific stuff goes here...
 221
 222 #ifdef Q_WS_MACX
 223 namespace{
 224
 225 OSErr checkAppleEventForMissingParams(const AppleEvent& theAppleEvent)
 226  {
 227         DescType returnedType;
 228         Size actualSize;
 229         OSErr err = AEGetAttributePtr(&theAppleEvent, keyMissedKeywordAttr,
 230                                       typeWildCard, &returnedType, nil, 0,
 231                                       &actualSize);
 232         switch (err) {
 233         case errAEDescNotFound:
 234                 return noErr;
 235         case noErr:
 236                 return errAEEventNotHandled;
 237         default:
 238                 return err;
 239         }
 240  }
 241
 242 } // namespace
 243
 244 OSErr GuiApplication::handleOpenDocuments(const AppleEvent* inEvent,
 245                                        AppleEvent* /*reply*/, long /*refCon*/)
 246 {
 247         QString s_arg;
 248         AEDescList documentList;
 249         OSErr err = AEGetParamDesc(inEvent, keyDirectObject, typeAEList,
 250                                    &documentList);
 251         if (err != noErr)
 252                 return err;
 253
 254         err = checkAppleEventForMissingParams(*inEvent);
 255         if (err == noErr) {
 256                 long documentCount;
 257                 err = AECountItems(&documentList, &documentCount);
 258                 for (long documentIndex = 1;
 259                      err == noErr && documentIndex <= documentCount;
 260                      documentIndex++) {
 261                         DescType returnedType;
 262                         Size actualSize;
 263                         AEKeyword keyword;
 264                         FSRef ref;
 265                         char qstr_buf[1024];
 266                         err = AESizeOfNthItem(&documentList, documentIndex,
 267                                               &returnedType, &actualSize);
 268                         if (err == noErr) {
 269                                 err = AEGetNthPtr(&documentList, documentIndex,
 270                                                   typeFSRef, &keyword,
 271                                                   &returnedType, (Ptr)&ref,
 272                                                   sizeof(FSRef), &actualSize);
 273                                 if (err == noErr) {
 274                                         FSRefMakePath(&ref, (UInt8*)qstr_buf,
 275                                                       1024);
 276                                         s_arg=QString::fromUtf8(qstr_buf);
 277 //                                      buffer_view_->workAreaDispatch(
 278 //                                              FuncRequest(LFUN_FILE_OPEN,
 279 //                                                          fromqstr(s_arg)));
 280                                         break;
 281                                 }
 282                         }
 283                 } // for ...
 284         }
 285         AEDisposeDesc(&documentList);
 286
 287         return err;
 288 }
 289
 290 bool GuiApplication::macEventFilter(EventRef event)
 291 {
 292         if (GetEventClass(event) == kEventClassAppleEvent) {
 293                 EventRecord eventrec;
 294                 ConvertEventRefToEventRecord(event, &eventrec);
 295                 AEProcessAppleEvent(&eventrec);
 296
 297                 return false;
 298         }
 299         return false;
 300 }
 301
 302 #endif  // Q_WS_MACX
 303
 304 } // namespace frontend
 305 } // namespace lyx