]> git.lyx.org Git - features.git/blobdiff - src/frontends/qt4/GuiApplication.cpp
Move Color::color enum to ColorCode.h
[features.git] / src / frontends / qt4 / GuiApplication.cpp
index 86dd43e9b308fdf4f58065d226de31dfec3c41dc..c604af671b96c0ff25d48414521e7def91dce09d 100644 (file)
@@ -1,5 +1,5 @@
 /**
- * \file qt4/GuiApplication.cpp
+ * \file GuiApplication.cpp
  * This file is part of LyX, the document processor.
  * Licence details can be found in the file COPYING.
  *
 #include "GuiApplication.h"
 
 #include "qt_helpers.h"
-#include "QLImage.h"
-#include "socket_callback.h"
+#include "GuiImage.h"
 
+#include "frontends/alert.h"
 #include "frontends/LyXView.h"
 
 #include "graphics/LoaderQueue.h"
 
+#include "support/ExceptionMessage.h"
+#include "support/FileName.h"
 #include "support/lstrings.h"
 #include "support/os.h"
 #include "support/Package.h"
 
+#include "BufferList.h"
 #include "BufferView.h"
 #include "Color.h"
 #include "debug.h"
 #include "FuncRequest.h"
+#include "gettext.h"
 #include "LyX.h"
 #include "LyXFunc.h"
 #include "LyXRC.h"
@@ -40,6 +44,9 @@
 #include <QFileOpenEvent>
 #include <QLocale>
 #include <QLibraryInfo>
+#include <QPixmapCache>
+#include <QSessionManager>
+#include <QSocketNotifier>
 #include <QTextCodec>
 #include <QTimer>
 #include <QTranslator>
 using std::string;
 using std::endl;
 
-///////////////////////////////////////////////////////////////
-// You can find other X11 specific stuff
-// at the end of this file...
-///////////////////////////////////////////////////////////////
-
-namespace {
-
-int getDPI()
-{
-       QWidget w;
-       return int(0.5 * (w.logicalDpiX() + w.logicalDpiY()));
-}
-
-} // namespace anon
-
 
 namespace lyx {
 
@@ -83,18 +75,62 @@ frontend::Application * createApplication(int & argc, char * argv[])
 
 namespace frontend {
 
-GuiApplication * guiApp;
+class SocketNotifier : public QSocketNotifier
+{
+public:
+       /// connect a connection notification from the LyXServerSocket
+       SocketNotifier(QObject * parent, int fd, Application::SocketCallback func)
+               : QSocketNotifier(fd, QSocketNotifier::Read, parent), func_(func)
+       {}
 
+public:
+       /// The callback function
+       Application::SocketCallback func_;
+};
 
-GuiApplication::~GuiApplication()
+
+////////////////////////////////////////////////////////////////////////
+// Mac specific stuff goes here...
+
+class MenuTranslator : public QTranslator
 {
-       socket_callbacks_.clear();
-}
+public:
+       MenuTranslator(QObject * parent)
+               : QTranslator(parent)
+       {}
+
+       QString translate(const char * /*context*/, 
+         const char * sourceText, 
+         const char * /*comment*/ = 0) 
+       {
+               string const s = sourceText;
+               if (s == N_("About %1") || s == N_("Preferences") 
+                               || s == N_("Reconfigure") || s == N_("Quit %1"))
+                       return qt_(s);
+               else 
+                       return QString();
+       }
+};
+
+
+///////////////////////////////////////////////////////////////
+// You can find more platform specific stuff
+// at the end of this file...
+///////////////////////////////////////////////////////////////
+
+
+using support::FileName;
+
+GuiApplication * guiApp;
 
 
 GuiApplication::GuiApplication(int & argc, char ** argv)
        : QApplication(argc, argv), Application(argc, argv)
 {
+       QCoreApplication::setOrganizationName("The LyX Community");
+       QCoreApplication::setOrganizationDomain("lyx.org");
+       QCoreApplication::setApplicationName("LyX");
+
        // Qt bug? setQuitOnLastWindowClosed(true); does not work
        setQuitOnLastWindowClosed(false);
 
@@ -108,13 +144,17 @@ GuiApplication::GuiApplication(int & argc, char ** argv)
 
        // install translation file for Qt built-in dialogs
        QString language_name = QString("qt_") + QLocale::system().name();
-       language_name.truncate(5);
+       
+       // language_name can be short (e.g. qt_zh) or long (e.g. qt_zh_CN). 
+       // Short-named translator can be loaded from a long name, but not the
+       // opposite. Therefore, long name should be used without truncation.
+       // c.f. http://doc.trolltech.com/4.1/qtranslator.html#load
        if (qt_trans_.load(language_name,
                QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
        {
-               qApp->installTranslator(&qt_trans_);
+               installTranslator(&qt_trans_);
                // even if the language calls for RtL, don't do that
-               qApp->setLayoutDirection(Qt::LeftToRight);
+               setLayoutDirection(Qt::LeftToRight);
                LYXERR(Debug::GUI)
                        << "Successfully installed Qt translations for locale "
                        << fromqstr(language_name) << std::endl;
@@ -123,33 +163,49 @@ GuiApplication::GuiApplication(int & argc, char ** argv)
                        << "Could not find  Qt translations for locale "
                        << fromqstr(language_name) << std::endl;
 
+#ifdef Q_WS_MACX
+       // This allows to translate the strings that appear in the LyX menu.
+       addMenuTranslator();
+#endif
+
        using namespace lyx::graphics;
 
-       Image::newImage = boost::bind(&QLImage::newImage);
-       Image::loadableFormats = boost::bind(&QLImage::loadableFormats);
+       Image::newImage = boost::bind(&GuiImage::newImage);
+       Image::loadableFormats = boost::bind(&GuiImage::loadableFormats);
 
        // needs to be done before reading lyxrc
-       lyxrc.dpi = getDPI();
+       QWidget w;
+       lyxrc.dpi = (w.logicalDpiX() + w.logicalDpiY()) / 2;
 
        LoaderQueue::setPriority(10,100);
 
        guiApp = this;
+
+       // Set the cache to 5120 kilobytes which corresponds to screen size of
+       // 1280 by 1024 pixels with a color depth of 32 bits.
+       QPixmapCache::setCacheLimit(5120);
 }
 
 
-Clipboard& GuiApplication::clipboard()
+GuiApplication::~GuiApplication()
+{
+       socket_notifiers_.clear();
+}
+
+
+Clipboard & GuiApplication::clipboard()
 {
        return clipboard_;
 }
 
 
-Selection& GuiApplication::selection()
+Selection & GuiApplication::selection()
 {
        return selection_;
 }
 
 
-int const GuiApplication::exec()
+int GuiApplication::exec()
 {
        QTimer::singleShot(1, this, SLOT(execBatchCommands()));
        return QApplication::exec();
@@ -207,8 +263,18 @@ bool GuiApplication::event(QEvent * e)
        case QEvent::FileOpen: {
                // Open a file; this happens only on Mac OS X for now
                QFileOpenEvent * foe = static_cast<QFileOpenEvent *>(e);
-               lyx::dispatch(FuncRequest(LFUN_FILE_OPEN,
-                                         fromqstr(foe->file())));
+
+               if (!currentView() || !currentView()->view())
+                       // The application is not properly initialized yet.
+                       // So we acknowledge the event and delay the file opening
+                       // until LyX is ready.
+                       // FIXME UNICODE: FileName accept an utf8 encoded string.
+                       LyX::ref().addFileToLoad(FileName(fromqstr(foe->file())));
+               else
+                       lyx::dispatch(FuncRequest(LFUN_FILE_OPEN,
+                               qstring_to_ucs4(foe->file())));
+
+               e->accept();
                return true;
        }
        default:
@@ -219,19 +285,35 @@ bool GuiApplication::event(QEvent * e)
 
 bool GuiApplication::notify(QObject * receiver, QEvent * event)
 {
-       bool return_value;
+       bool return_value = false;
        try {
                return_value = QApplication::notify(receiver, event);
        }
+       catch (support::ExceptionMessage  const & e) {
+               if (e.type_ == support::ErrorException) {
+                       Alert::error(e.title_, e.details_);
+                       LyX::cref().emergencyCleanup();
+                       QApplication::exit(1);
+               } else if (e.type_ == support::WarningException) {
+                       Alert::warning(e.title_, e.details_);
+                       return return_value;
+               }
+       }
        catch (std::exception  const & e) {
-               lyxerr << "Caught \"normal\" exception: " << e.what() << endl;
+               docstring s = _("LyX has caught an exception, it will now "
+                       "attemp to save all unsaved documents and exit."
+                       "\n\nException: ");
+               s += from_ascii(e.what());
+               Alert::error(_("Software exception Detected"), s);
                LyX::cref().emergencyCleanup();
-               abort();
+               QApplication::exit(1);
        }
        catch (...) {
-               lyxerr << "Caught some really weird exception..." << endl;
+               docstring s = _("LyX has caught some really weird exception, it will "
+                       "now attemp to save all unsaved documents and exit.");
+               Alert::error(_("Software exception Detected"), s);
                LyX::cref().emergencyCleanup();
-               abort();
+               QApplication::exit(1);
        }
 
        return return_value;
@@ -248,7 +330,7 @@ void GuiApplication::syncEvents()
 }
 
 
-bool GuiApplication::getRgbColor(Color_color col,
+bool GuiApplication::getRgbColor(ColorCode col,
        RGBColor & rgbcol)
 {
        QColor const & qcol = color_cache_.get(col);
@@ -265,31 +347,52 @@ bool GuiApplication::getRgbColor(Color_color col,
 }
 
 
-string const GuiApplication::hexName(Color_color col)
+string const GuiApplication::hexName(ColorCode col)
 {
-       return lyx::support::ltrim(fromqstr(color_cache_.get(col).name()), "#");
+       return support::ltrim(fromqstr(color_cache_.get(col).name()), "#");
 }
 
 
-void GuiApplication::updateColor(Color_color)
+void GuiApplication::updateColor(ColorCode)
 {
        // FIXME: Bleh, can't we just clear them all at once ?
        color_cache_.clear();
 }
 
 
-void GuiApplication::registerSocketCallback(int fd, boost::function<void()> func)
+void GuiApplication::registerSocketCallback(int fd, SocketCallback func)
 {
-       socket_callbacks_[fd] =
-               boost::shared_ptr<socket_callback>(new socket_callback(fd, func));
+       SocketNotifier * sn = new SocketNotifier(this, fd, func);
+       socket_notifiers_[fd] = sn;
+       connect(sn, SIGNAL(activated(int)), this, SLOT(socketDataReceived(int)));
+}
+
+
+void GuiApplication::socketDataReceived(int fd)
+{
+       socket_notifiers_[fd]->func_();
 }
 
 
 void GuiApplication::unregisterSocketCallback(int fd)
 {
-       socket_callbacks_.erase(fd);
+       socket_notifiers_.erase(fd);
 }
 
+
+void GuiApplication::commitData(QSessionManager & sm)
+{
+       /// The implementation is required to avoid an application exit
+       /// when session state save is triggered by session manager.
+       /// The default implementation sends a close event to all
+       /// visible top level widgets when session managment allows
+       /// interaction.
+       /// We are changing that to write all unsaved buffers...
+       if (sm.allowsInteraction() && !theBufferList().quitWriteAll())
+               sm.cancel();
+}
+
+
 ////////////////////////////////////////////////////////////////////////
 // X11 specific stuff goes here...
 #ifdef Q_WS_X11
@@ -325,6 +428,11 @@ bool GuiApplication::x11EventFilter(XEvent * xev)
 }
 #endif
 
+void GuiApplication::addMenuTranslator()
+{
+       installTranslator(new MenuTranslator(this));
+}
+
 
 } // namespace frontend
 } // namespace lyx