From d904227bfe0a5aea25fc24274ad86f2f886645a0 Mon Sep 17 00:00:00 2001
From: nils <nils@34ebc366-c3a9-4b3c-9f84-69acf7962910>
Date: Sat, 29 Jan 2011 20:30:59 +0000
Subject: undoable encrypt and decrypt

git-svn-id: http://cpunk.de/svn/src/gpg4usb/trunk@454 34ebc366-c3a9-4b3c-9f84-69acf7962910
---
 TODO       |  6 +++---
 gpgwin.cpp | 16 +++++++++++++---
 2 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/TODO b/TODO
index 68b6045..d3e68ea 100644
--- a/TODO
+++ b/TODO
@@ -33,14 +33,14 @@ attachments:
 	- add tab for editor options, like font-size, line-break, tab-width, line-numbers,..
 - update gpgme-library
 - clean header if quoted printable decoded
-- add quote button
+- add quote button [DONE]
 - fix overwrite file bug in file encryption [DONE]
 - add drag'n'drop features for keys [DONE]
 - add posibility to change password of key
 - check and add missing statusbar messages
 - add editorpage-method setmodified
-- tab switching tab down doesn't work right in windows
-- list keys to delete in warning dialog
+- list keys to delete in warning dialog [DONE]
+- undoable encrypt and decrypt  [DONE]
 
 Release 0.3
 - PGP-MIME, find and show inline encrypted files
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();
     }
 }
 
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