undoable encrypt and decrypt

git-svn-id: http://cpunk.de/svn/src/gpg4usb/trunk@454 34ebc366-c3a9-4b3c-9f84-69acf7962910

1 files changed, 13 insertions, 3 deletions

diff --git a/gpgwin.cpp b/gpgwin.cpp
index 3da557c..1b1fc18 100644
--- a/gpgwin.cpp
+++ b/gpgwin.cpp
@@ -479,10 +479,15 @@ void GpgWin::encrypt()
     QStringList *uidList = mKeyList->getChecked();
 
     QByteArray *tmp = new QByteArray();
-//    if (mCtx->encrypt(uidList, edit.curTextPage.toPlainText().toUtf8(), tmp)) {
     if (mCtx->encrypt(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();
     }
 }
 
@@ -516,7 +521,12 @@ void GpgWin::decrypt()
                 }
             }
         }
-        edit->curTextPage()->setPlainText(QString::fromUtf8(*decrypted));
+        // beginEditBlock and endEditBlock() let operation look like single undo/redo operation
+        QTextCursor cursor(edit->curTextPage()->document());
+        cursor.beginEditBlock();
+        edit->curTextPage()->selectAll();
+        edit->curTextPage()->insertPlainText(QString::fromUtf8(*decrypted));
+        cursor.endEditBlock();
     }
 }