Account for old versions of Pygments

[lyx.git] / src / LyX.cpp

diff --git a/src/LyX.cpp b/src/LyX.cpp
index 0f6b9b6acb45497873240cd060a5267aa4d47789..f9c3c2ddad946dfd97a9e5ef0ad7c6a5bd62205d 100644 (file)
--- a/src/LyX.cpp
+++ b/src/LyX.cpp
@@ -52,6 +52,7 @@
 #include "frontends/Application.h"
 
 #include "support/ConsoleApplication.h"
+#include "support/convert.h"
 #include "support/lassert.h"
 #include "support/debug.h"
 #include "support/environment.h"
@@ -73,6 +74,8 @@
 #include <string>
 #include <vector>
 
+#include <qglobal.h> // For QT_VERSION
+
 using namespace std;
 using namespace lyx::support;
 
@@ -121,6 +124,14 @@ RunMode run_mode = PREFERRED;
 OverwriteFiles force_overwrite = UNSPECIFIED;
 
 
+// Scale the GUI by this factor. This works whether we have a HiDpi screen
+// or not and scales everything, also fonts. Can only be changed by setting
+// the QT_SCALE_FACTOR environment variable before launching LyX and only
+// works properly with Qt 5.6 or higher.
+
+double qt_scale_factor = 1.0;
+
+
 namespace {
 
 // Filled with the command line arguments "foo" of "-sysdir foo" or
@@ -179,9 +190,14 @@ struct LyX::Impl {
 
        /// The file converters.
        Converters converters_;
-
-       // The system converters copy after reading lyxrc.defaults.
+       /// The system converters after reading lyxrc.defaults.
        Converters system_converters_;
+       
+       /// Global format information
+       Formats formats_;
+       /// The system formats after reading lyxrc.defaults.
+       Formats system_formats_;
+
 
        ///
        Movers movers_;
@@ -303,6 +319,17 @@ int LyX::exec(int & argc, char * argv[])
        // we need to parse for "-dbg" and "-help"
        easyParse(argc, argv);
 
+#if QT_VERSION >= 0x050600
+       // Check whether Qt will scale all GUI elements and accordingly
+       // set the scale factor so that to avoid blurred images and text
+       char const * const scale_factor = getenv("QT_SCALE_FACTOR");
+       if (scale_factor) {
+               qt_scale_factor = convert<double>(scale_factor);
+               if (qt_scale_factor < 1.0)
+                       qt_scale_factor = 1.0;
+       }
+#endif
+
        try {
                init_package(os::utf8_argv(0), cl_system_support, cl_user_support);
        } catch (ExceptionMessage const & message) {
@@ -367,7 +394,7 @@ int LyX::exec(int & argc, char * argv[])
                        FileName(package().temp_dir().absFileName() + "/lyxsocket")));
 
        // Start the real execution loop.
-       if (!theServer().deferredLoadingToOtherInstance())
+       if (!pimpl_->lyx_server_->deferredLoadingToOtherInstance())
                exit_status = pimpl_->application_->exec();
        else if (!pimpl_->files_to_load_.empty()) {
                vector<string>::const_iterator it = pimpl_->files_to_load_.begin();
@@ -838,7 +865,7 @@ bool LyX::init()
 #endif
 
        lyxrc.tempdir_path = package().temp_dir().absFileName();
-       lyxrc.document_path = ".";
+       lyxrc.document_path = package().document_dir().absFileName();
 
        if (lyxrc.example_path.empty()) {
                lyxrc.example_path = addPath(package().system_support().absFileName(),
@@ -916,13 +943,13 @@ bool LyX::init()
                return false;
 
        // Query the OS to know what formats are viewed natively
-       formats.setAutoOpen();
+       theFormats().setAutoOpen();
 
        // Read lyxrc.dist again to be able to override viewer auto-detection.
        readRcFile("lyxrc.dist");
 
        system_lyxrc = lyxrc;
-       system_formats = formats;
+       theSystemFormats() = theFormats();
        pimpl_->system_converters_ = pimpl_->converters_;
        pimpl_->system_movers_ = pimpl_->movers_;
        system_lcolor = lcolor;
@@ -1030,7 +1057,8 @@ bool LyX::queryUserLyXDir(bool explicit_userdir)
                        || configFileNeedsUpdate("lyxmodules.lst")
                        || configFileNeedsUpdate("textclass.lst")
                        || configFileNeedsUpdate("packages.lst")
-                       || configFileNeedsUpdate("lyxciteengines.lst");
+                       || configFileNeedsUpdate("lyxciteengines.lst")
+                       || configFileNeedsUpdate("xtemplates.lst");
        }
 
        first_start = !explicit_userdir;
@@ -1159,7 +1187,8 @@ int parse_help(string const &, string const &, string &)
                  "                  where fmt is the export format of choice. Look in\n"
                  "                  Tools->Preferences->File Handling->File Formats->Short Name\n"
                  "                  to see which parameter (which differs from the format name\n"
-                 "                  in the File->Export menu) should be passed.\n"
+                 "                  in the File->Export menu) should be passed. To export to\n"
+                 "                  the document's default output format, use 'default'.\n"
                  "                  Note that the order of -e and -x switches matters.\n"
                  "\t-E [--export-to] fmt filename\n"
                  "                  where fmt is the export format of choice (see --export),\n"
@@ -1476,17 +1505,31 @@ KeyMap & theTopLevelKeymap()
 }
 
 
+Formats & theFormats()
+{
+       LAPPERR(singleton_);
+       return singleton_->pimpl_->formats_;
+}
+
+
+Formats & theSystemFormats()
+{
+       LAPPERR(singleton_);
+       return singleton_->pimpl_->system_formats_;
+}
+
+
 Converters & theConverters()
 {
        LAPPERR(singleton_);
-       return  singleton_->pimpl_->converters_;
+       return singleton_->pimpl_->converters_;
 }
 
 
 Converters & theSystemConverters()
 {
        LAPPERR(singleton_);
-       return  singleton_->pimpl_->system_converters_;
+       return singleton_->pimpl_->system_converters_;
 }