From d0c8b8a3fc681f02464353ceba9a1c3c67d77859 Mon Sep 17 00:00:00 2001
From: Pritpal Bedi <bedipritpal@hotmail.com>
Date: Thu, 16 Feb 2012 21:28:27 +0000
Subject: [PATCH] 2012-02-16 13:26 UTC-0800 Pritpal Bedi
 (bedipritpal@hotmail.com)   * contrib/hbqt/qtgui/hbqt_hbqplaintextedit.cpp  
 * contrib/hbqt/qtgui/hbqt_hbqplaintextedit.h     * Changed: dragging
 operation starting off mouse move event        instead of mouse press event.

---
 harbour/ChangeLog                             |  6 +++
 .../hbqt/qtgui/hbqt_hbqplaintextedit.cpp      | 48 +++++++++++--------
 .../hbqt/qtgui/hbqt_hbqplaintextedit.h        |  1 +
 3 files changed, 36 insertions(+), 19 deletions(-)

diff --git a/harbour/ChangeLog b/harbour/ChangeLog
index 719ed8e136..b6dd2913dd 100644
--- a/harbour/ChangeLog
+++ b/harbour/ChangeLog
@@ -16,6 +16,12 @@
    The license applies to all entries newer than 2009-04-28.
 */
 
+2012-02-16 13:26 UTC-0800 Pritpal Bedi (bedipritpal@hotmail.com)
+  * contrib/hbqt/qtgui/hbqt_hbqplaintextedit.cpp
+  * contrib/hbqt/qtgui/hbqt_hbqplaintextedit.h
+    * Changed: dragging operation starting off mouse move event
+       instead of mouse press event.
+
 2012-02-16 19:27 UTC+0100 Viktor Szakats (harbour syenar.net)
   * INSTALL
     * minor to prev
diff --git a/harbour/contrib/hbqt/qtgui/hbqt_hbqplaintextedit.cpp b/harbour/contrib/hbqt/qtgui/hbqt_hbqplaintextedit.cpp
index 6d8825a15d..5f8081f30a 100644
--- a/harbour/contrib/hbqt/qtgui/hbqt_hbqplaintextedit.cpp
+++ b/harbour/contrib/hbqt/qtgui/hbqt_hbqplaintextedit.cpp
@@ -129,6 +129,7 @@ HBQPlainTextEdit::HBQPlainTextEdit( QWidget * parent ) : QPlainTextEdit( parent
    isCodeCompletionActive   = true;
    isCompletionTipsActive   = true;
    isInDrag                 = false;
+   dragStartPosition        = QPoint();
    
    #if 0
    QTextFrameFormat format( this->document()->rootFrame()->frameFormat() );
@@ -979,27 +980,9 @@ void HBQPlainTextEdit::mousePressEvent( QMouseEvent *event )
          
          QTextCursor c( cursorForPosition( event->pos() ) );
          int row = c.blockNumber();
-
          if( row >= rowBegins && row <= rowEnds )
          {
-            event->ignore();
-            
-            QDrag * qDrag = new QDrag( this );
-            QMimeData * qMimeData = new QMimeData();
-            hbCopy();
-            qMimeData->setText( QApplication::clipboard()->text() );
-            qDrag->setMimeData( qMimeData );
-            
-            QPixmap pmap = QPixmap::grabWidget( this->viewport(), hbGetSelectionRect() );
-            pmap.setMask( pmap.createMaskFromColor( m_selectionColor, Qt::MaskInColor ) );
-            pmap.setMask( pmap.createMaskFromColor( palette().color( QPalette::Base ), Qt::MaskInColor ) );
-            pmap.setMask( pmap.createMaskFromColor( m_currentLineColor, Qt::MaskInColor ) );
-            qDrag->setPixmap( pmap );
-            qDrag->setHotSpot( QPoint( 5,5 ) );
-            
-            qDrag->exec( Qt::MoveAction | Qt::CopyAction );
-            delete qDrag;
-            return;
+            dragStartPosition = event->pos();
          }
          else
          {   
@@ -1065,6 +1048,33 @@ void HBQPlainTextEdit::mouseMoveEvent( QMouseEvent *event )
 
    if( event->buttons() & Qt::LeftButton )
    {
+      if( ( event->pos() - dragStartPosition ).manhattanLength() < QApplication::startDragDistance() )
+      {
+         QTextCursor c( cursorForPosition( event->pos() ) );
+         int row = c.blockNumber();
+         if( row >= rowBegins && row <= rowEnds )
+         {
+            event->ignore();
+            
+            QDrag * qDrag = new QDrag( this );
+            QMimeData * qMimeData = new QMimeData();
+            hbCopy();
+            qMimeData->setText( QApplication::clipboard()->text() );
+            qDrag->setMimeData( qMimeData );
+            
+            QPixmap pmap = QPixmap::grabWidget( this->viewport(), hbGetSelectionRect() );
+            pmap.setMask( pmap.createMaskFromColor( m_selectionColor, Qt::MaskInColor ) );
+            pmap.setMask( pmap.createMaskFromColor( palette().color( QPalette::Base ), Qt::MaskInColor ) );
+            pmap.setMask( pmap.createMaskFromColor( m_currentLineColor, Qt::MaskInColor ) );
+            qDrag->setPixmap( pmap );
+            qDrag->setHotSpot( QPoint( 5,5 ) );
+            
+            qDrag->exec( Qt::MoveAction | Qt::CopyAction );
+            delete qDrag;
+            return;
+         }
+      }
+      
       if( selectionState == 1 )
       {
          selectionState = 2;
diff --git a/harbour/contrib/hbqt/qtgui/hbqt_hbqplaintextedit.h b/harbour/contrib/hbqt/qtgui/hbqt_hbqplaintextedit.h
index c1060591b9..ebab739975 100644
--- a/harbour/contrib/hbqt/qtgui/hbqt_hbqplaintextedit.h
+++ b/harbour/contrib/hbqt/qtgui/hbqt_hbqplaintextedit.h
@@ -175,6 +175,7 @@ private:
    bool           isCodeCompletionActive;
    bool           isCompletionTipsActive;
    bool           isInDrag;
+   QPoint         dragStartPosition;
    
 protected:
    bool           event( QEvent * event );