4 files changed, 43 insertions, 6 deletions

diff --git a/src/gui/widgets/qlinecontrol.cpp b/src/gui/widgets/qlinecontrol.cpp
index 3eac64a..a1b3ff8 100644
--- a/src/gui/widgets/qlinecontrol.cpp
+++ b/src/gui/widgets/qlinecontrol.cpp
@@ -1577,6 +1577,7 @@ void QLineControl::processKeyEvent(QKeyEvent* event)
     }
 
     bool unknown = false;
+    bool visual = cursorMoveStyle() == QTextCursor::Visual;
 
     if (false) {
     }
@@ -1641,11 +1642,11 @@ void QLineControl::processKeyEvent(QKeyEvent* event)
 #endif
             moveCursor(selectionEnd(), false);
         } else {
-            cursorForward(0, layoutDirection() == Qt::LeftToRight ? 1 : -1);
+            cursorForward(0, visual ? 1 : (layoutDirection() == Qt::LeftToRight ? 1 : -1));
         }
     }
     else if (event == QKeySequence::SelectNextChar) {
-        cursorForward(1, layoutDirection() == Qt::LeftToRight ? 1 : -1);
+        cursorForward(1, visual ? 1 : (layoutDirection() == Qt::LeftToRight ? 1 : -1));
     }
     else if (event == QKeySequence::MoveToPreviousChar) {
 #if !defined(Q_WS_WIN) || defined(QT_NO_COMPLETER)
@@ -1656,11 +1657,11 @@ void QLineControl::processKeyEvent(QKeyEvent* event)
 #endif
             moveCursor(selectionStart(), false);
         } else {
-            cursorForward(0, layoutDirection() == Qt::LeftToRight ? -1 : 1);
+            cursorForward(0, visual ? -1 : (layoutDirection() == Qt::LeftToRight ? -1 : 1));
         }
     }
     else if (event == QKeySequence::SelectPreviousChar) {
-        cursorForward(1, layoutDirection() == Qt::LeftToRight ? -1 : 1);
+        cursorForward(1, visual ? -1 : (layoutDirection() == Qt::LeftToRight ? -1 : 1));
     }
     else if (event == QKeySequence::MoveToNextWord) {
         if (echoMode() == QLineEdit::Normal)
diff --git a/src/gui/widgets/qlinecontrol_p.h b/src/gui/widgets/qlinecontrol_p.h
index 3c505c8..0042f17 100644
--- a/src/gui/widgets/qlinecontrol_p.h
+++ b/src/gui/widgets/qlinecontrol_p.h
@@ -160,6 +160,8 @@ public:
     int cursorWidth() const { return m_cursorWidth; }
     void setCursorWidth(int value) { m_cursorWidth = value; }
 
+    QTextCursor::MoveStyle cursorMoveStyle() const { return m_textLayout.cursorMoveStyle(); }
+    void setCursorMoveStyle(QTextCursor::MoveStyle style) { m_textLayout.setCursorMoveStyle(style); }
 
     void moveCursor(int pos, bool mark = false);
     void cursorForward(bool mark, int steps)
@@ -167,10 +169,12 @@ public:
         int c = m_cursor;
         if (steps > 0) {
             while (steps--)
-                c = m_textLayout.nextCursorPosition(c);
+                c = cursorMoveStyle() == QTextCursor::Visual ? m_textLayout.rightCursorPosition(c)
+                                                             : m_textLayout.nextCursorPosition(c);
         } else if (steps < 0) {
             while (steps++)
-                c = m_textLayout.previousCursorPosition(c);
+                c = cursorMoveStyle() == QTextCursor::Visual ? m_textLayout.leftCursorPosition(c)
+                                                             : m_textLayout.previousCursorPosition(c);
         }
         moveCursor(c, mark);
     }
diff --git a/src/gui/widgets/qlineedit.cpp b/src/gui/widgets/qlineedit.cpp
index 07bd273..43c3f52 100644
--- a/src/gui/widgets/qlineedit.cpp
+++ b/src/gui/widgets/qlineedit.cpp
@@ -1112,6 +1112,34 @@ void QLineEdit::setDragEnabled(bool b)
 
 
 /*!
+  \property QLineEdit::cursorMoveStyle
+  \brief the movement style of cursor in this line edit
+  \since 4.8
+
+  When this property is set to QTextCursor::Visual, the line edit will use visual
+  movement style. Pressing the left arrow key will always cause the cursor to move
+  left, regardless of the text's writing direction. The same behavior applies to
+  right arrow key.
+
+  When the property is QTextCursor::Logical (the default), within a LTR text block,
+  increase cursor position when pressing left arrow key, decrease cursor position
+  when pressing the right arrow key. If the text block is right to left, the opposite
+  behavior applies.
+*/
+
+QTextCursor::MoveStyle QLineEdit::cursorMoveStyle() const
+{
+    Q_D(const QLineEdit);
+    return d->control->cursorMoveStyle();
+}
+
+void QLineEdit::setCursorMoveStyle(QTextCursor::MoveStyle style)
+{
+    Q_D(QLineEdit);
+    d->control->setCursorMoveStyle(style);
+}
+
+/*!
     \property QLineEdit::acceptableInput
     \brief whether the input satisfies the inputMask and the
     validator.
diff --git a/src/gui/widgets/qlineedit.h b/src/gui/widgets/qlineedit.h
index 636cee7..73a736c 100644
--- a/src/gui/widgets/qlineedit.h
+++ b/src/gui/widgets/qlineedit.h
@@ -43,6 +43,7 @@
 #define QLINEEDIT_H
 
 #include <QtGui/qframe.h>
+#include <QtGui/qtextcursor.h>
 #include <QtCore/qstring.h>
 #include <QtCore/qmargins.h>
 
@@ -158,6 +159,9 @@ public:
     void setDragEnabled(bool b);
     bool dragEnabled() const;
 
+    void setCursorMoveStyle(QTextCursor::MoveStyle style);
+    QTextCursor::MoveStyle cursorMoveStyle() const;
+
     QString inputMask() const;
     void setInputMask(const QString &inputMask);
     bool hasAcceptableInput() const;