From 182cb4efb7281a3c8f92f2ef178783562032be20 Mon Sep 17 00:00:00 2001
From: rekols <rekols@foxmail.com>
Date: Wed, 5 Dec 2018 11:36:50 +0800
Subject: [PATCH] fix: draft modify codec.

Change-Id: Ic19dafabeed5c08e9dffb25035be0ee317c0b6a6
---
 src/editwrapper.cpp       | 31 ++++++++++++++++++++++++++-----
 src/widgets/bottombar.cpp |  1 -
 2 files changed, 26 insertions(+), 6 deletions(-)

diff --git a/src/editwrapper.cpp b/src/editwrapper.cpp
index 668fd5e9..b743c823 100644
--- a/src/editwrapper.cpp
+++ b/src/editwrapper.cpp
@@ -148,14 +148,10 @@ void EditWrapper::updatePath(const QString &file)
 
 void EditWrapper::refresh()
 {
-    if (filePath().isEmpty()) {
+    if (filePath().isEmpty() || Utils::isDraftFile(filePath())) {
         return;
     }
 
-    if (Utils::isDraftFile(filePath())) {
-        saveFile();
-    }
-
     QFile file(filePath());
     int curPos = m_textEdit->textCursor().position();
     int yoffset = m_textEdit->verticalScrollBar()->value();
@@ -199,6 +195,31 @@ void EditWrapper::setTextCodec(QTextCodec *codec)
 {
     m_textCodec = codec;
 
+    QFile file(filePath());
+    int curPos = m_textEdit->textCursor().position();
+    int yoffset = m_textEdit->verticalScrollBar()->value();
+    int xoffset = m_textEdit->horizontalScrollBar()->value();
+    m_textEdit->setPlainText(QString());
+
+    if (file.open(QIODevice::ReadOnly)) {
+        QTextStream out(&file);
+        out.setCodec(codec);
+        QString content = out.readAll();
+
+        m_textEdit->setUpdatesEnabled(false);
+        m_textEdit->setPlainText(content);
+        m_textEdit->setModified(false);
+
+        QTextCursor textcur = m_textEdit->textCursor();
+        textcur.setPosition(curPos);
+        m_textEdit->setTextCursor(textcur);
+        m_textEdit->verticalScrollBar()->setValue(yoffset);
+        m_textEdit->horizontalScrollBar()->setValue(xoffset);
+        m_textEdit->setUpdatesEnabled(true);
+
+        file.close();
+    }
+
     // TODO: enforce bom for some encodings
 }
 
diff --git a/src/widgets/bottombar.cpp b/src/widgets/bottombar.cpp
index 1fa58b08..998dba9a 100644
--- a/src/widgets/bottombar.cpp
+++ b/src/widgets/bottombar.cpp
@@ -78,7 +78,6 @@ void BottomBar::handleEncodeChanged(const QString &name)
     QFontMetrics fm(m_encodeComboBox->font());
     m_encodeComboBox->setFixedWidth(fm.width(name) + 30);
     m_wrapper->setTextCodec(QTextCodec::codecForName(name.toUtf8()));
-    m_wrapper->refresh();
 }
 
 void BottomBar::paintEvent(QPaintEvent *e)