Support for the URW Garamond LaTeX fonts

[lyx.git] / src / LyXVC.cpp

diff --git a/src/LyXVC.cpp b/src/LyXVC.cpp
index 192b70b8f9c0a1f3370bcaff24ea727ed5a26c7d..244dff156d166797c314d79d5a220a6a2aa3b272 100644 (file)
--- a/src/LyXVC.cpp
+++ b/src/LyXVC.cpp
@@ -176,6 +176,8 @@ bool LyXVC::registrer()
 string LyXVC::checkIn()
 {
        LYXERR(Debug::LYXVC, "LyXVC: checkIn");
+       if (!vcs)
+               return string();
        docstring empty(_("(no log message)"));
        docstring response;
        string log;
@@ -201,6 +203,8 @@ string LyXVC::checkIn()
 
 string LyXVC::checkOut()
 {
+       if (!vcs)
+               return string();
        //RCS allows checkOut only in ReadOnly mode
        if (vcs->toggleReadOnlyEnabled() && !owner_->isReadonly())
                return string();
@@ -213,6 +217,8 @@ string LyXVC::checkOut()
 string LyXVC::repoUpdate()
 {
        LYXERR(Debug::LYXVC, "LyXVC: repoUpdate");
+       if (!vcs)
+               return string();
        return vcs->repoUpdate();
 }
 
@@ -220,6 +226,8 @@ string LyXVC::repoUpdate()
 string LyXVC::lockingToggle()
 {
        LYXERR(Debug::LYXVC, "LyXVC: toggle locking property");
+       if (!vcs)
+               return string();
        return vcs->lockingToggle();
 }
 
@@ -227,6 +235,8 @@ string LyXVC::lockingToggle()
 bool LyXVC::revert()
 {
        LYXERR(Debug::LYXVC, "LyXVC: revert");
+       if (!vcs)
+               return false;
 
        docstring const file = owner_->fileName().displayName(20);
        docstring text = bformat(_("Reverting to the stored version of the "
@@ -243,12 +253,16 @@ bool LyXVC::revert()
 
 void LyXVC::undoLast()
 {
+       if (!vcs)
+               return;
        vcs->undoLast();
 }
 
 
 void LyXVC::toggleReadOnly()
 {
+       if (!vcs)
+               return;
        if (!vcs->toggleReadOnlyEnabled())
                return;
 
@@ -277,12 +291,16 @@ bool LyXVC::inUse() const
 
 string const LyXVC::versionString() const
 {
+       if (!vcs)
+               return string();
        return vcs->versionString();
 }
 
 
 bool LyXVC::locking() const
 {
+       if (!vcs)
+               return false;
        return vcs->status() != VCS::NOLOCKING;
 }