Fix crash in debug mode (MSVC) due to an assertion in Qt.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@17559 a592a061-630c-0410-9148-cb99ea01b6c8

diff --git a/src/frontends/qt4/QViewSourceDialog.C b/src/frontends/qt4/QViewSourceDialog.C
index d4ae0f641e7455143266eb1d723a9a66f79f1609..4ce778ecb578ad11b86a703cc2f37e76920f6e6e 100644 (file)
--- a/src/frontends/qt4/QViewSourceDialog.C
+++ b/src/frontends/qt4/QViewSourceDialog.C
@@ -32,7 +32,11 @@ QViewSourceDialog::QViewSourceDialog(QViewSource * form)
        connect(updatePB, SIGNAL(clicked()),
                this, SLOT(update()));
 
+       // setting a document at this point trigger an assertion in Qt
+       // so we disable the signals here:
+       form_->document()->blockSignals(true);
        viewSourceTV->setDocument(form_->document());
+       form_->document()->blockSignals(false);
        viewSourceTV->setReadOnly(true);
        ///dialog_->viewSourceTV->setAcceptRichText(false);
        // this is personal. I think source code should be in fixed-size font