lyx_mirror/src/frontends/qt4/GuiApplication.cpp

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/**
* \file GuiApplication.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author unknown
* \author John Levon
* \author Abdelrazak Younes
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "GuiApplication.h"
#include "ColorCache.h"
#include "ColorSet.h"
#include "GuiClipboard.h"
#include "GuiImage.h"
#include "GuiKeySymbol.h"
#include "GuiSelection.h"
#include "GuiView.h"
#include "Menus.h"
#include "qt_helpers.h"
#include "Toolbars.h"
#include "frontends/alert.h"
#include "frontends/Application.h"
#include "frontends/FontLoader.h"
#include "frontends/FontMetrics.h"
#include "Buffer.h"
#include "BufferList.h"
#include "BufferView.h"
#include "Color.h"
#include "Font.h"
#include "FuncRequest.h"
#include "FuncStatus.h"
#include "Language.h"
#include "Lexer.h"
#include "LyX.h"
#include "LyXAction.h"
#include "LyXFunc.h"
#include "LyXRC.h"
#include "Session.h"
#include "version.h"
#include "support/lassert.h"
#include "support/debug.h"
#include "support/ExceptionMessage.h"
#include "support/FileName.h"
#include "support/foreach.h"
#include "support/ForkedCalls.h"
#include "support/gettext.h"
#include "support/lstrings.h"
#include "support/lyxalgo.h" // sorted
#include "support/Messages.h"
#include "support/os.h"
#include "support/Package.h"
#ifdef Q_WS_MACX
#include "support/linkback/LinkBackProxy.h"
#endif
#include <queue>
#include <QByteArray>
#include <QClipboard>
#include <QDateTime>
#include <QDir>
#include <QEventLoop>
#include <QFileOpenEvent>
#include <QFileInfo>
#include <QHash>
#include <QIcon>
#include <QImageReader>
#include <QLocale>
#include <QLibraryInfo>
#include <QList>
#include <QMacPasteboardMime>
#include <QMenuBar>
#include <QMimeData>
#include <QObject>
#include <QPixmap>
#include <QPixmapCache>
#include <QRegExp>
#include <QSessionManager>
#include <QSettings>
#include <QSocketNotifier>
#include <QSortFilterProxyModel>
#include <QStandardItemModel>
#include <QTextCodec>
#include <QTimer>
#include <QTranslator>
#include <QWidget>
#ifdef Q_WS_X11
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#undef CursorShape
#undef None
#endif
#ifdef Q_WS_WIN
#include <QWindowsMime>
#ifdef Q_CC_GNU
#include <wtypes.h>
#endif
#include <objidl.h>
#endif // Q_WS_WIN
#include <boost/bind.hpp>
#include <boost/crc.hpp>
#include <exception>
#include <vector>
using namespace std;
using namespace lyx::support;
static void initializeResources()
{
static bool initialized = false;
if (!initialized) {
Q_INIT_RESOURCE(Resources);
initialized = true;
}
}
namespace lyx {
frontend::Application * createApplication(int & argc, char * argv[])
{
#ifndef Q_WS_X11
// prune -geometry argument(s) by shifting
// the following ones 2 places down.
for (int i = 0 ; i < argc ; ++i) {
if (strcmp(argv[i], "-geometry") == 0) {
int const remove = (i+1) < argc ? 2 : 1;
argc -= remove;
for (int j = i; j < argc; ++j)
argv[j] = argv[j + remove];
--i;
}
}
#endif
return new frontend::GuiApplication(argc, argv);
}
namespace frontend {
/// Return the list of loadable formats.
vector<string> loadableImageFormats()
{
vector<string> fmts;
QList<QByteArray> qt_formats = QImageReader::supportedImageFormats();
LYXERR(Debug::GRAPHICS,
"\nThe image loader can load the following directly:\n");
if (qt_formats.empty())
LYXERR(Debug::GRAPHICS, "\nQt4 Problem: No Format available!");
for (QList<QByteArray>::const_iterator it = qt_formats.begin(); it != qt_formats.end(); ++it) {
LYXERR(Debug::GRAPHICS, (const char *) *it << ", ");
string ext = ascii_lowercase((const char *) *it);
// special case
if (ext == "jpeg")
ext = "jpg";
fmts.push_back(ext);
}
return fmts;
}
////////////////////////////////////////////////////////////////////////
//
// Icon loading support code
//
////////////////////////////////////////////////////////////////////////
namespace {
struct PngMap {
QString key;
QString value;
};
bool operator<(PngMap const & lhs, PngMap const & rhs)
{
return lhs.key < rhs.key;
}
class CompareKey {
public:
CompareKey(QString const & name) : name_(name) {}
bool operator()(PngMap const & other) const { return other.key == name_; }
private:
QString const name_;
};
// this must be sorted alphabetically
// Upper case comes before lower case
PngMap sorted_png_map[] = {
{ "Bumpeq", "bumpeq2" },
{ "Cap", "cap2" },
{ "Cup", "cup2" },
{ "Delta", "delta2" },
{ "Downarrow", "downarrow2" },
{ "Gamma", "gamma2" },
{ "Lambda", "lambda2" },
{ "Leftarrow", "leftarrow2" },
{ "Leftrightarrow", "leftrightarrow2" },
{ "Longleftarrow", "longleftarrow2" },
{ "Longleftrightarrow", "longleftrightarrow2" },
{ "Longrightarrow", "longrightarrow2" },
{ "Omega", "omega2" },
{ "Phi", "phi2" },
{ "Pi", "pi2" },
{ "Psi", "psi2" },
{ "Rightarrow", "rightarrow2" },
{ "Sigma", "sigma2" },
{ "Subset", "subset2" },
{ "Supset", "supset2" },
{ "Theta", "theta2" },
{ "Uparrow", "uparrow2" },
{ "Updownarrow", "updownarrow2" },
{ "Upsilon", "upsilon2" },
{ "Vdash", "vdash3" },
{ "Vert", "vert2" },
{ "Xi", "xi2" },
{ "nLeftarrow", "nleftarrow2" },
{ "nLeftrightarrow", "nleftrightarrow2" },
{ "nRightarrow", "nrightarrow2" },
{ "nVDash", "nvdash3" },
{ "nvDash", "nvdash2" },
{ "textrm \\AA", "textrm_AA"},
{ "textrm \\O", "textrm_O"},
{ "vDash", "vdash2" }
};
size_t const nr_sorted_png_map = sizeof(sorted_png_map) / sizeof(PngMap);
QString findPng(QString const & name)
{
PngMap const * const begin = sorted_png_map;
PngMap const * const end = begin + nr_sorted_png_map;
LASSERT(sorted(begin, end), /**/);
PngMap const * const it = find_if(begin, end, CompareKey(name));
QString png_name;
if (it != end) {
png_name = it->value;
} else {
png_name = name;
png_name.replace('_', "underscore");
png_name.replace(' ', '_');
// This way we can have "math-delim { }" on the toolbar.
png_name.replace('(', "lparen");
png_name.replace(')', "rparen");
png_name.replace('[', "lbracket");
png_name.replace(']', "rbracket");
png_name.replace('{', "lbrace");
png_name.replace('}', "rbrace");
png_name.replace('|', "bars");
png_name.replace(',', "thinspace");
png_name.replace(':', "mediumspace");
png_name.replace(';', "thickspace");
png_name.replace('!', "negthinspace");
}
LYXERR(Debug::GUI, "findPng(" << name << ")\n"
<< "Looking for math PNG called \"" << png_name << '"');
return png_name;
}
} // namespace anon
QString iconName(FuncRequest const & f, bool unknown)
{
initializeResources();
QString name1;
QString name2;
QString path;
switch (f.action) {
case LFUN_MATH_INSERT:
if (!f.argument().empty()) {
path = "math/";
name1 = findPng(toqstr(f.argument()).mid(1));
}
break;
case LFUN_MATH_DELIM:
case LFUN_MATH_BIGDELIM:
path = "math/";
name1 = findPng(toqstr(f.argument()));
break;
case LFUN_CALL:
path = "commands/";
name1 = toqstr(f.argument());
break;
case LFUN_COMMAND_ALTERNATIVES: {
// use the first of the alternative commands
docstring firstcom;
docstring dummy = split(f.argument(), firstcom, ';');
name1 = toqstr(firstcom);
name1.replace(' ', '_');
break;
}
default:
name2 = toqstr(lyxaction.getActionName(f.action));
name1 = name2;
if (!f.argument().empty()) {
name1 = name2 + ' ' + toqstr(f.argument());
name1.replace(' ', '_');
name1.replace('\\', "backslash");
}
}
FileName fname = libFileSearch("images/" + path, name1, "png");
if (fname.exists())
return toqstr(fname.absFilename());
fname = libFileSearch("images/" + path, name2, "png");
if (fname.exists())
return toqstr(fname.absFilename());
path = ":/images/" + path;
QDir res(path);
if (!res.exists()) {
LYXERR0("Directory " << path << " not found in resource!");
return QString();
}
name1 += ".png";
if (res.exists(name1))
return path + name1;
name2 += ".png";
if (res.exists(name2))
return path + name2;
LYXERR(Debug::GUI, "Cannot find icon with filename "
<< "\"" << name1 << "\""
<< " or filename "
<< "\"" << name2 << "\""
<< " for command \""
<< lyxaction.getActionName(f.action)
<< '(' << to_utf8(f.argument()) << ")\"");
if (unknown) {
fname = libFileSearch("images/", "unknown", "png");
if (fname.exists())
return toqstr(fname.absFilename());
return QString(":/images/unknown.png");
}
return QString();
}
QPixmap getPixmap(QString const & path, QString const & name, QString const & ext)
{
QPixmap pixmap;
FileName fname = libFileSearch(path, name, ext);
QString path1 = toqstr(fname.absFilename());
QString path2 = ":/" + path + name + "." + ext;
if (pixmap.load(path1)) {
return pixmap;
}
else if (pixmap.load(path2)) {
return pixmap;
}
LYXERR0("Cannot load pixmap \""
<< path << name << '.' << ext
<< "\", please verify resource system!");
return QPixmap();
}
QIcon getIcon(FuncRequest const & f, bool unknown)
{
QString icon = iconName(f, unknown);
if (icon.isEmpty())
return QIcon();
//LYXERR(Debug::GUI, "Found icon: " << icon);
QPixmap pm;
if (!pm.load(icon)) {
LYXERR0("Cannot load icon " << icon << " please verify resource system!");
return QIcon();
}
return QIcon(pm);
}
////////////////////////////////////////////////////////////////////////
//
// LyX server support code.
//
////////////////////////////////////////////////////////////////////////
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_;
};
////////////////////////////////////////////////////////////////////////
//
// Mac specific stuff goes here...
//
////////////////////////////////////////////////////////////////////////
class MenuTranslator : public QTranslator
{
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();
}
};
class GlobalMenuBar : public QMenuBar
{
public:
///
GlobalMenuBar() : QMenuBar(0) {}
///
bool event(QEvent * e)
{
if (e->type() == QEvent::ShortcutOverride) {
// && activeWindow() == 0) {
QKeyEvent * ke = static_cast<QKeyEvent*>(e);
KeySymbol sym;
setKeySymbol(&sym, ke);
theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
e->accept();
return true;
}
return false;
}
};
#ifdef Q_WS_MACX
// QMacPasteboardMimeGraphics can only be compiled on Mac.
class QMacPasteboardMimeGraphics : public QMacPasteboardMime
{
public:
QMacPasteboardMimeGraphics()
: QMacPasteboardMime(MIME_QT_CONVERTOR|MIME_ALL)
{}
QString convertorName() { return "Graphics"; }
QString flavorFor(QString const & mime)
{
LYXERR(Debug::ACTION, "flavorFor " << mime);
if (mime == pdfMimeType())
return QLatin1String("com.adobe.pdf");
return QString();
}
QString mimeFor(QString flav)
{
LYXERR(Debug::ACTION, "mimeFor " << flav);
if (flav == QLatin1String("com.adobe.pdf"))
return pdfMimeType();
return QString();
}
bool canConvert(QString const & mime, QString flav)
{
return mimeFor(flav) == mime;
}
QVariant convertToMime(QString const & /*mime*/, QList<QByteArray> data,
QString /*flav*/)
{
if(data.count() > 1)
qWarning("QMacPasteboardMimeGraphics: Cannot handle multiple member data");
return data.first();
}
QList<QByteArray> convertFromMime(QString const & /*mime*/,
QVariant data, QString /*flav*/)
{
QList<QByteArray> ret;
ret.append(data.toByteArray());
return ret;
}
};
#endif
///////////////////////////////////////////////////////////////
//
// You can find more platform specific stuff at the end of this file...
//
///////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
// Windows specific stuff goes here...
#ifdef Q_WS_WIN
// QWindowsMimeMetafile can only be compiled on Windows.
static FORMATETC cfFromMime(QString const & mimetype)
{
FORMATETC formatetc;
if (mimetype == emfMimeType()) {
formatetc.cfFormat = CF_ENHMETAFILE;
formatetc.tymed = TYMED_ENHMF;
} else if (mimetype == wmfMimeType()) {
formatetc.cfFormat = CF_METAFILEPICT;
formatetc.tymed = TYMED_MFPICT;
}
formatetc.ptd = 0;
formatetc.dwAspect = DVASPECT_CONTENT;
formatetc.lindex = -1;
return formatetc;
}
class QWindowsMimeMetafile : public QWindowsMime {
public:
QWindowsMimeMetafile() {}
bool canConvertFromMime(FORMATETC const & formatetc,
QMimeData const * mimedata) const
{
return false;
}
bool canConvertToMime(QString const & mimetype,
IDataObject * pDataObj) const
{
if (mimetype != emfMimeType() && mimetype != wmfMimeType())
return false;
FORMATETC formatetc = cfFromMime(mimetype);
return pDataObj->QueryGetData(&formatetc) == S_OK;
}
bool convertFromMime(FORMATETC const & formatetc,
const QMimeData * mimedata, STGMEDIUM * pmedium) const
{
return false;
}
QVariant convertToMime(QString const & mimetype, IDataObject * pDataObj,
QVariant::Type preferredType) const
{
QByteArray data;
if (!canConvertToMime(mimetype, pDataObj))
return data;
FORMATETC formatetc = cfFromMime(mimetype);
STGMEDIUM s;
if (pDataObj->GetData(&formatetc, &s) != S_OK)
return data;
int dataSize;
if (s.tymed == TYMED_ENHMF) {
dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, 0, 0);
data.resize(dataSize);
dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, dataSize,
(LPBYTE)data.data());
} else if (s.tymed == TYMED_MFPICT) {
dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, 0, 0);
data.resize(dataSize);
dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, dataSize,
(LPBYTE)data.data());
}
data.detach();
ReleaseStgMedium(&s);
return data;
}
QVector<FORMATETC> formatsForMime(QString const & mimetype,
QMimeData const * mimedata) const
{
QVector<FORMATETC> formats;
if (mimetype == emfMimeType() || mimetype == wmfMimeType())
formats += cfFromMime(mimetype);
return formats;
}
QString mimeForFormat(FORMATETC const & formatetc) const
{
switch (formatetc.cfFormat) {
case CF_ENHMETAFILE:
return emfMimeType();
case CF_METAFILEPICT:
return wmfMimeType();
}
return QString();
}
};
#endif // Q_WS_WIN
////////////////////////////////////////////////////////////////////////
// GuiApplication::Private definition and implementation.
////////////////////////////////////////////////////////////////////////
struct GuiApplication::Private
{
Private(): language_model_(0), global_menubar_(0) {}
///
QSortFilterProxyModel * language_model_;
///
GuiClipboard clipboard_;
///
GuiSelection selection_;
///
FontLoader font_loader_;
///
ColorCache color_cache_;
///
QTranslator qt_trans_;
///
QHash<int, SocketNotifier *> socket_notifiers_;
///
Menus menus_;
///
/// The global instance
Toolbars toolbars_;
/// this timer is used for any regular events one wants to
/// perform. at present it is used to check if forked processes
/// are done.
QTimer general_timer_;
/// delayed FuncRequests
std::queue<FuncRequest> func_request_queue_;
/// Multiple views container.
/**
* Warning: This must not be a smart pointer as the destruction of the
* object is handled by Qt when the view is closed
* \sa Qt::WA_DeleteOnClose attribute.
*/
QHash<int, GuiView *> views_;
/// Only used on mac.
GlobalMenuBar * global_menubar_;
#ifdef Q_WS_MACX
/// Linkback mime handler for MacOSX.
QMacPasteboardMimeGraphics mac_pasteboard_mime_;
#endif
#ifdef Q_WS_WIN
/// WMF Mime handler for Windows clipboard.
QWindowsMimeMetafile wmf_mime_;
#endif
};
GuiApplication * guiApp;
GuiApplication::~GuiApplication()
{
#ifdef Q_WS_MACX
closeAllLinkBackLinks();
#endif
delete d;
}
GuiApplication::GuiApplication(int & argc, char ** argv)
: QApplication(argc, argv), current_view_(0), d(new GuiApplication::Private)
{
QString app_name = "LyX";
QCoreApplication::setOrganizationName(app_name);
QCoreApplication::setOrganizationDomain("lyx.org");
QCoreApplication::setApplicationName(app_name + "-" + lyx_version);
// Install translator for GUI elements.
installTranslator(&d->qt_trans_);
// FIXME: quitOnLastWindowClosed is true by default. We should have a
// lyxrc setting for this in order to let the application stay resident.
// But then we need some kind of dock icon, at least on Windows.
/*
if (lyxrc.quit_on_last_window_closed)
setQuitOnLastWindowClosed(false);
*/
#ifdef Q_WS_MACX
// FIXME: Do we need a lyxrc setting for this on Mac? This behaviour
// seems to be the default case for applications like LyX.
setQuitOnLastWindowClosed(false);
// This allows to translate the strings that appear in the LyX menu.
/// A translator suitable for the entries in the LyX menu.
/// Only needed with Qt/Mac.
installTranslator(new MenuTranslator(this));
#endif
#ifdef Q_WS_X11
// doubleClickInterval() is 400 ms on X11 which is just too long.
// On Windows and Mac OS X, the operating system's value is used.
// On Microsoft Windows, calling this function sets the double
// click interval for all applications. So we don't!
QApplication::setDoubleClickInterval(300);
#endif
connect(this, SIGNAL(lastWindowClosed()), this, SLOT(onLastWindowClosed()));
// needs to be done before reading lyxrc
QWidget w;
lyxrc.dpi = (w.logicalDpiX() + w.logicalDpiY()) / 2;
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);
// Initialize RC Fonts
if (lyxrc.roman_font_name.empty())
lyxrc.roman_font_name = fromqstr(romanFontName());
if (lyxrc.sans_font_name.empty())
lyxrc.sans_font_name = fromqstr(sansFontName());
if (lyxrc.typewriter_font_name.empty())
lyxrc.typewriter_font_name = fromqstr(typewriterFontName());
d->general_timer_.setInterval(500);
connect(&d->general_timer_, SIGNAL(timeout()),
this, SLOT(handleRegularEvents()));
d->general_timer_.start();
}
GuiApplication * theGuiApp()
{
return dynamic_cast<GuiApplication *>(theApp());
}
void GuiApplication::clearSession()
{
QSettings settings;
settings.clear();
}
docstring GuiApplication::iconName(FuncRequest const & f, bool unknown)
{
return qstring_to_ucs4(lyx::frontend::iconName(f, unknown));
}
bool GuiApplication::getStatus(FuncRequest const & cmd, FuncStatus & flag) const
{
bool enable = true;
switch(cmd.action) {
case LFUN_WINDOW_CLOSE:
enable = d->views_.size() > 0;
break;
case LFUN_BUFFER_NEW:
case LFUN_BUFFER_NEW_TEMPLATE:
case LFUN_FILE_OPEN:
case LFUN_SCREEN_FONT_UPDATE:
case LFUN_SET_COLOR:
case LFUN_WINDOW_NEW:
case LFUN_LYX_QUIT:
enable = true;
break;
default:
return false;
}
if (!enable)
flag.setEnabled(false);
return true;
}
bool GuiApplication::dispatch(FuncRequest const & cmd)
{
switch (cmd.action) {
case LFUN_WINDOW_NEW:
createView(toqstr(cmd.argument()));
break;
case LFUN_WINDOW_CLOSE:
// update bookmark pit of the current buffer before window close
for (size_t i = 0; i < theSession().bookmarks().size(); ++i)
theLyXFunc().gotoBookmark(i+1, false, false);
current_view_->close();
break;
case LFUN_LYX_QUIT:
// quitting is triggered by the gui code
// (leaving the event loop).
if (current_view_)
current_view_->message(from_utf8(N_("Exiting.")));
if (closeAllViews())
quit();
break;
case LFUN_SCREEN_FONT_UPDATE: {
// handle the screen font changes.
d->font_loader_.update();
// Backup current_view_
GuiView * view = current_view_;
// Set current_view_ to zero to forbid GuiWorkArea::redraw()
// to skip the refresh.
current_view_ = 0;
BufferList::iterator it = theBufferList().begin();
BufferList::iterator const end = theBufferList().end();
for (; it != end; ++it)
(*it)->changed();
// Restore current_view_
current_view_ = view;
break;
}
case LFUN_BUFFER_NEW:
if (d->views_.empty()
|| (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
createView(QString(), false); // keep hidden
current_view_->newDocument(to_utf8(cmd.argument()), false);
current_view_->show();
setActiveWindow(current_view_);
} else {
current_view_->newDocument(to_utf8(cmd.argument()), false);
}
break;
case LFUN_BUFFER_NEW_TEMPLATE:
if (d->views_.empty()
|| (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
createView();
current_view_->newDocument(to_utf8(cmd.argument()), true);
if (!current_view_->buffer())
current_view_->close();
} else {
current_view_->newDocument(to_utf8(cmd.argument()), true);
}
break;
case LFUN_FILE_OPEN:
if (d->views_.empty()
|| (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
string const fname = to_utf8(cmd.argument());
// We want the ui session to be saved per document and not per
// window number. The filename crc is a good enough identifier.
boost::crc_32_type crc;
crc = for_each(fname.begin(), fname.end(), crc);
createView(crc.checksum());
current_view_->openDocument(fname);
if (current_view_ && !current_view_->buffer())
current_view_->close();
} else
current_view_->openDocument(to_utf8(cmd.argument()));
break;
case LFUN_SET_COLOR: {
string lyx_name;
string const x11_name = split(to_utf8(cmd.argument()), lyx_name, ' ');
if (lyx_name.empty() || x11_name.empty()) {
current_view_->message(
_("Syntax: set-color <lyx_name> <x11_name>"));
break;
}
string const graphicsbg = lcolor.getLyXName(Color_graphicsbg);
bool const graphicsbg_changed = lyx_name == graphicsbg
&& x11_name != graphicsbg;
if (graphicsbg_changed) {
// FIXME: The graphics cache no longer has a changeDisplay method.
#if 0
graphics::GCache::get().changeDisplay(true);
#endif
}
if (!lcolor.setColor(lyx_name, x11_name)) {
current_view_->message(
bformat(_("Set-color \"%1$s\" failed "
"- color is undefined or "
"may not be redefined"),
from_utf8(lyx_name)));
break;
}
// Make sure we don't keep old colors in cache.
d->color_cache_.clear();
break;
}
default:
// Notify the caller that the action has not been dispatched.
return false;
}
// The action has been dispatched.
return true;
}
void GuiApplication::dispatchDelayed(FuncRequest const & func)
{
d->func_request_queue_.push(func);
QTimer::singleShot(0, this, SLOT(processFuncRequestQueue()));
}
void GuiApplication::resetGui()
{
// Set the language defined by the user.
setGuiLanguage();
// Read menus
if (!readUIFile(toqstr(lyxrc.ui_file)))
// Gives some error box here.
return;
if (d->global_menubar_)
d->menus_.fillMenuBar(d->global_menubar_, 0, false);
QHash<int, GuiView *>::iterator it;
for (it = d->views_.begin(); it != d->views_.end(); ++it) {
GuiView * gv = *it;
gv->setLayoutDirection(layoutDirection());
gv->resetDialogs();
}
dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
}
void GuiApplication::createView(int view_id)
{
createView(QString(), true, view_id);
}
void GuiApplication::createView(QString const & geometry_arg, bool autoShow,
int view_id)
{
// release the keyboard which might have been grabed by the global
// menubar on Mac to catch shortcuts even without any GuiView.
if (d->global_menubar_)
d->global_menubar_->releaseKeyboard();
// create new view
int id = view_id;
if (id == 0) {
while (d->views_.find(id) != d->views_.end())
id++;
}
LYXERR(Debug::GUI, "About to create new window with ID " << id);
GuiView * view = new GuiView(id);
// register view
d->views_[id] = view;
if (autoShow) {
view->show();
setActiveWindow(view);
}
if (!geometry_arg.isEmpty()) {
#ifdef Q_WS_WIN
int x, y;
int w, h;
QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
re.indexIn(geometry_arg);
w = re.cap(1).toInt();
h = re.cap(2).toInt();
x = re.cap(3).toInt();
y = re.cap(4).toInt();
view->setGeometry(x, y, w, h);
#endif
}
view->setFocus();
}
Clipboard & GuiApplication::clipboard()
{
return d->clipboard_;
}
Selection & GuiApplication::selection()
{
return d->selection_;
}
FontLoader & GuiApplication::fontLoader()
{
return d->font_loader_;
}
Toolbars const & GuiApplication::toolbars() const
{
return d->toolbars_;
}
Toolbars & GuiApplication::toolbars()
{
return d->toolbars_;
}
Menus const & GuiApplication::menus() const
{
return d->menus_;
}
Menus & GuiApplication::menus()
{
return d->menus_;
}
QList<int> GuiApplication::viewIds() const
{
return d->views_.keys();
}
ColorCache & GuiApplication::colorCache()
{
return d->color_cache_;
}
int GuiApplication::exec()
{
// asynchronously handle batch commands. This event will be in
// the event queue in front of other asynchronous events. Hence,
// we can assume in the latter that the gui is setup already.
QTimer::singleShot(0, this, SLOT(execBatchCommands()));
return QApplication::exec();
}
void GuiApplication::exit(int status)
{
QApplication::exit(status);
}
void GuiApplication::setGuiLanguage()
{
// Set the language defined by the user.
setRcGuiLanguage();
QString const default_language = toqstr(Messages::defaultLanguage());
LYXERR(Debug::LOCALE, "Tring to set default locale to: " << default_language);
QLocale const default_locale(default_language);
QLocale::setDefault(default_locale);
// install translation file for Qt built-in dialogs
QString const language_name = QString("qt_") + default_locale.name();
// 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 (!d->qt_trans_.load(language_name,
QLibraryInfo::location(QLibraryInfo::TranslationsPath))) {
LYXERR(Debug::LOCALE, "Could not find Qt translations for locale "
<< language_name);
} else {
LYXERR(Debug::LOCALE, "Successfully installed Qt translations for locale "
<< language_name);
}
switch (default_locale.language()) {
case QLocale::Arabic :
case QLocale::Hebrew :
case QLocale::Persian :
case QLocale::Urdu :
setLayoutDirection(Qt::RightToLeft);
break;
default:
setLayoutDirection(Qt::LeftToRight);
}
}
void GuiApplication::processFuncRequestQueue()
{
while (!d->func_request_queue_.empty()) {
lyx::dispatch(d->func_request_queue_.back());
d->func_request_queue_.pop();
}
}
void GuiApplication::execBatchCommands()
{
setGuiLanguage();
// Read menus
if (!readUIFile(toqstr(lyxrc.ui_file)))
// Gives some error box here.
return;
#ifdef Q_WS_MACX
// Create the global default menubar which is shown for the dialogs
// and if no GuiView is visible.
// This must be done after the session was recovered to know the "last files".
d->global_menubar_ = new GlobalMenuBar();
d->menus_.fillMenuBar(d->global_menubar_, 0, true);
#endif
lyx::execBatchCommands();
}
QAbstractItemModel * GuiApplication::languageModel()
{
if (d->language_model_)
return d->language_model_;
QStandardItemModel * lang_model = new QStandardItemModel(this);
lang_model->insertColumns(0, 1);
int current_row;
Languages::const_iterator it = languages.begin();
Languages::const_iterator end = languages.end();
for (; it != end; ++it) {
current_row = lang_model->rowCount();
lang_model->insertRows(current_row, 1);
QModelIndex item = lang_model->index(current_row, 0);
lang_model->setData(item, qt_(it->second.display()), Qt::DisplayRole);
lang_model->setData(item, toqstr(it->second.lang()), Qt::UserRole);
}
d->language_model_ = new QSortFilterProxyModel(this);
d->language_model_->setSourceModel(lang_model);
#if QT_VERSION >= 0x040300
d->language_model_->setSortLocaleAware(true);
#endif
return d->language_model_;
}
void GuiApplication::restoreGuiSession()
{
if (!lyxrc.load_session)
return;
Session & session = theSession();
vector<FileName> const & lastopened = session.lastOpened().getfiles();
// do not add to the lastfile list since these files are restored from
// last session, and should be already there (regular files), or should
// not be added at all (help files).
for_each(lastopened.begin(), lastopened.end(),
bind(&GuiView::loadDocument, current_view_, _1, false));
// clear this list to save a few bytes of RAM
session.lastOpened().clear();
}
QString const GuiApplication::romanFontName()
{
QFont font;
font.setKerning(false);
font.setStyleHint(QFont::Serif);
font.setFamily("serif");
return QFontInfo(font).family();
}
QString const GuiApplication::sansFontName()
{
QFont font;
font.setKerning(false);
font.setStyleHint(QFont::SansSerif);
font.setFamily("sans");
return QFontInfo(font).family();
}
QString const GuiApplication::typewriterFontName()
{
QFont font;
font.setKerning(false);
font.setStyleHint(QFont::TypeWriter);
font.setFamily("monospace");
return QFontInfo(font).family();
}
void GuiApplication::handleRegularEvents()
{
ForkedCallsController::handleCompletedProcesses();
}
bool GuiApplication::event(QEvent * e)
{
switch(e->type()) {
case QEvent::FileOpen: {
// Open a file; this happens only on Mac OS X for now.
//
// We do this asynchronously because on startup the batch
// commands are not executed here yet and the gui is not ready
// therefore.
QFileOpenEvent * foe = static_cast<QFileOpenEvent *>(e);
dispatchDelayed(FuncRequest(LFUN_FILE_OPEN, qstring_to_ucs4(foe->file())));
e->accept();
return true;
}
default:
return QApplication::event(e);
}
}
bool GuiApplication::notify(QObject * receiver, QEvent * event)
{
try {
return QApplication::notify(receiver, event);
}
catch (ExceptionMessage const & e) {
switch(e.type_) {
case ErrorException:
emergencyCleanup();
setQuitOnLastWindowClosed(false);
closeAllViews();
Alert::error(e.title_, e.details_);
#ifndef NDEBUG
// Properly crash in debug mode in order to get a useful backtrace.
abort();
#endif
// In release mode, try to exit gracefully.
this->exit(1);
case BufferException: {
Buffer * buf = current_view_->buffer();
docstring details = e.details_ + '\n';
details += theBufferList().emergencyWrite(buf);
theBufferList().release(buf);
details += "\n" + _("The current document was closed.");
Alert::error(e.title_, details);
return false;
}
case WarningException:
Alert::warning(e.title_, e.details_);
return false;
}
}
catch (exception const & e) {
docstring s = _("LyX has caught an exception, it will now "
"attempt to save all unsaved documents and exit."
"\n\nException: ");
s += from_ascii(e.what());
Alert::error(_("Software exception Detected"), s);
lyx_exit(1);
}
catch (...) {
docstring s = _("LyX has caught some really weird exception, it will "
"now attempt to save all unsaved documents and exit.");
Alert::error(_("Software exception Detected"), s);
lyx_exit(1);
}
return false;
}
bool GuiApplication::getRgbColor(ColorCode col, RGBColor & rgbcol)
{
QColor const & qcol = d->color_cache_.get(col);
if (!qcol.isValid()) {
rgbcol.r = 0;
rgbcol.g = 0;
rgbcol.b = 0;
return false;
}
rgbcol.r = qcol.red();
rgbcol.g = qcol.green();
rgbcol.b = qcol.blue();
return true;
}
string const GuiApplication::hexName(ColorCode col)
{
return ltrim(fromqstr(d->color_cache_.get(col).name()), "#");
}
void GuiApplication::registerSocketCallback(int fd, SocketCallback func)
{
SocketNotifier * sn = new SocketNotifier(this, fd, func);
d->socket_notifiers_[fd] = sn;
connect(sn, SIGNAL(activated(int)), this, SLOT(socketDataReceived(int)));
}
void GuiApplication::socketDataReceived(int fd)
{
d->socket_notifiers_[fd]->func_();
}
void GuiApplication::unregisterSocketCallback(int fd)
{
d->socket_notifiers_.take(fd)->setEnabled(false);
}
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 close all wiew one by one.
/// FIXME: verify if the default implementation is enough now.
if (sm.allowsInteraction() && !closeAllViews())
sm.cancel();
}
void GuiApplication::unregisterView(GuiView * gv)
{
LASSERT(d->views_[gv->id()] == gv, /**/);
d->views_.remove(gv->id());
if (current_view_ == gv) {
current_view_ = 0;
theLyXFunc().setLyXView(0);
}
}
bool GuiApplication::closeAllViews()
{
if (d->views_.empty())
return true;
QList<GuiView *> views = d->views_.values();
foreach (GuiView * view, views) {
if (!view->close())
return false;
}
d->views_.clear();
return true;
}
GuiView & GuiApplication::view(int id) const
{
LASSERT(d->views_.contains(id), /**/);
return *d->views_.value(id);
}
void GuiApplication::hideDialogs(string const & name, Inset * inset) const
{
QList<GuiView *> views = d->views_.values();
foreach (GuiView * view, views)
view->hideDialog(name, inset);
}
Buffer const * GuiApplication::updateInset(Inset const * inset) const
{
Buffer const * buffer_ = 0;
QHash<int, GuiView *>::iterator end = d->views_.end();
for (QHash<int, GuiView *>::iterator it = d->views_.begin(); it != end; ++it) {
if (Buffer const * ptr = (*it)->updateInset(inset))
buffer_ = ptr;
}
return buffer_;
}
bool GuiApplication::searchMenu(FuncRequest const & func,
docstring_list & names) const
{
return d->menus_.searchMenu(func, names);
}
bool GuiApplication::readUIFile(QString const & name, bool include)
{
enum {
ui_menuset = 1,
ui_toolbars,
ui_toolbarset,
ui_include,
ui_last
};
LexerKeyword uitags[] = {
{ "include", ui_include },
{ "menuset", ui_menuset },
{ "toolbars", ui_toolbars },
{ "toolbarset", ui_toolbarset }
};
LYXERR(Debug::INIT, "About to read " << name << "...");
FileName ui_path;
if (include) {
ui_path = libFileSearch("ui", name, "inc");
if (ui_path.empty())
ui_path = libFileSearch("ui", changeExtension(name, "inc"));
} else {
ui_path = libFileSearch("ui", name, "ui");
}
if (ui_path.empty()) {
LYXERR(Debug::INIT, "Could not find " << name);
Alert::warning(_("Could not find UI definition file"),
bformat(_("Error while reading the configuration file\n%1$s.\n"
"Please check your installation."), qstring_to_ucs4(name)));
return false;
}
// Ensure that a file is read only once (prevents include loops)
static QStringList uifiles;
QString const uifile = toqstr(ui_path.absFilename());
if (uifiles.contains(uifile)) {
if (!include) {
// We are reading again the top uifile so reset the safeguard:
uifiles.clear();
d->menus_.reset();
d->toolbars_.reset();
} else {
LYXERR(Debug::INIT, "UI file '" << name << "' has been read already. "
<< "Is this an include loop?");
return false;
}
}
uifiles.push_back(uifile);
LYXERR(Debug::INIT, "Found " << name << " in " << ui_path);
Lexer lex(uitags);
lex.setFile(ui_path);
if (!lex.isOK()) {
lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
<< endl;
}
if (lyxerr.debugging(Debug::PARSER))
lex.printTable(lyxerr);
while (lex.isOK()) {
switch (lex.lex()) {
case ui_include: {
lex.next(true);
QString const file = toqstr(lex.getString());
if (!readUIFile(file, true))
return false;
break;
}
case ui_menuset:
d->menus_.read(lex);
break;
case ui_toolbarset:
d->toolbars_.readToolbars(lex);
break;
case ui_toolbars:
d->toolbars_.readToolbarSettings(lex);
break;
default:
if (!rtrim(lex.getString()).empty())
lex.printError("LyX::ReadUIFile: "
"Unknown menu tag: `$$Token'");
break;
}
}
if (include)
return true;
QSettings settings;
settings.beginGroup("ui_files");
bool touched = false;
for (int i = 0; i != uifiles.size(); ++i) {
QFileInfo fi(uifiles[i]);
QDateTime const date_value = fi.lastModified();
QString const name_key = QString::number(i);
if (!settings.contains(name_key)
|| settings.value(name_key).toString() != uifiles[i]
|| settings.value(name_key + "/date").toDateTime() != date_value) {
touched = true;
settings.setValue(name_key, uifiles[i]);
settings.setValue(name_key + "/date", date_value);
}
}
settings.endGroup();
if (touched)
settings.remove("views");
return true;
}
void GuiApplication::onLastWindowClosed()
{
if (d->global_menubar_)
d->global_menubar_->grabKeyboard();
}
////////////////////////////////////////////////////////////////////////
//
// X11 specific stuff goes here...
#ifdef Q_WS_X11
bool GuiApplication::x11EventFilter(XEvent * xev)
{
if (!current_view_)
return false;
switch (xev->type) {
case SelectionRequest: {
if (xev->xselectionrequest.selection != XA_PRIMARY)
break;
LYXERR(Debug::SELECTION, "X requested selection.");
BufferView * bv = current_view_->view();
if (bv) {
docstring const sel = bv->requestSelection();
if (!sel.empty())
d->selection_.put(sel);
}
break;
}
case SelectionClear: {
if (xev->xselectionclear.selection != XA_PRIMARY)
break;
LYXERR(Debug::SELECTION, "Lost selection.");
BufferView * bv = current_view_->view();
if (bv)
bv->clearSelection();
break;
}
}
return false;
}
#endif
} // namespace frontend
void hideDialogs(std::string const & name, Inset * inset)
{
if (theApp())
theApp()->hideDialogs(name, inset);
}
////////////////////////////////////////////////////////////////////
//
// Font stuff
//
////////////////////////////////////////////////////////////////////
frontend::FontLoader & theFontLoader()
{
LASSERT(frontend::guiApp, /**/);
return frontend::guiApp->fontLoader();
}
frontend::FontMetrics const & theFontMetrics(Font const & f)
{
return theFontMetrics(f.fontInfo());
}
frontend::FontMetrics const & theFontMetrics(FontInfo const & f)
{
LASSERT(frontend::guiApp, /**/);
return frontend::guiApp->fontLoader().metrics(f);
}
////////////////////////////////////////////////////////////////////
//
// Misc stuff
//
////////////////////////////////////////////////////////////////////
frontend::Clipboard & theClipboard()
{
LASSERT(frontend::guiApp, /**/);
return frontend::guiApp->clipboard();
}
frontend::Selection & theSelection()
{
LASSERT(frontend::guiApp, /**/);
return frontend::guiApp->selection();
}
} // namespace lyx
#include "moc_GuiApplication.cpp"