make sign undoable,change return value checkErr to int

git-svn-id: http://cpunk.de/svn/src/gpg4usb/trunk@495 34ebc366-c3a9-4b3c-9f84-69acf7962910

1 files changed, 7 insertions, 2 deletions

diff --git a/gpgwin.cpp b/gpgwin.cpp
index 5c66324..0028c38 100644
--- a/gpgwin.cpp
+++ b/gpgwin.cpp
@@ -690,9 +690,14 @@ void GpgWin::sign()
     QStringList *uidList = mKeyList->getChecked();
 
     QByteArray *tmp = new QByteArray();
-    if (mCtx->sign(uidList, edit->curTextPage()->toPlainText().toUtf8(), tmp)) {
+    if (mCtx->sign(uidList, edit->curTextPage()->toPlainText().toUtf8(), tmp)) {        
         QString *tmp2 = new QString(*tmp);
-        edit->curTextPage()->setPlainText(*tmp2);
+        // beginEditBlock and endEditBlock() let operation look like single undo/redo operation
+        QTextCursor cursor(edit->curTextPage()->document());
+        cursor.beginEditBlock();
+        edit->curTextPage()->selectAll();
+        edit->curTextPage()->insertPlainText(*tmp2);
+        cursor.endEditBlock();
     }
 }