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List:       kde-commits
Subject:    [zanshin] src: allow setting a due date via mousewheel
From:       Matthias Kretz <kretz () kde ! org>
Date:       2012-02-03 15:30:28
Message-ID: 20120203153028.BDFA3A60C6 () git ! kde ! org
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Git commit 3d876f8d6dbe138378026d9f3ee7a07ef0b4135a by Matthias Kretz.
Committed on 01/02/2012 at 23:51.
Pushed by mkretz into branch 'master'.

allow setting a due date via mousewheel

Setting the due date with the mouse is easier now (for me). Double-click
the cell and use the mousewheel to select the date. The mousewheel thus
does the same as the up/down cursor keys.

M  +22   -0    src/kdateedit.cpp
M  +1    -0    src/kdateedit.h

http://commits.kde.org/zanshin/3d876f8d6dbe138378026d9f3ee7a07ef0b4135a

diff --git a/src/kdateedit.cpp b/src/kdateedit.cpp
index 41f942b..440c9b5 100644
--- a/src/kdateedit.cpp
+++ b/src/kdateedit.cpp
@@ -278,6 +278,28 @@ void KDateEdit::focusOutEvent( QFocusEvent *e )
   QComboBox::focusOutEvent( e );
 }
 
+void KDateEdit::wheelEvent( QWheelEvent *e )
+{
+  if ( mReadOnly || e->delta() == 0 ) {
+    return;
+  }
+  QDate date = parseDate();
+  if ( !date.isValid() ) {
+    return;
+  }
+  // QWheelEvent::delta reports +/-120 per step on most mice, but according to the documentation some
+  // mice may send smaller deltas. We're just interested in the direction, though...
+  date = date.addDays( e->delta() > 0 ? 1 : -1 );
+  if ( assignDate( date ) ) {
+    e->accept();
+    updateView();
+    emit dateChanged( date );
+    emit dateEntered( date );
+    return;
+  }
+  QComboBox::wheelEvent( e );
+}
+
 void KDateEdit::keyPressEvent(QKeyEvent* e)
 {
   QDate date;
diff --git a/src/kdateedit.h b/src/kdateedit.h
index 7a805a5..eb337ea 100644
--- a/src/kdateedit.h
+++ b/src/kdateedit.h
@@ -116,6 +116,7 @@ class KDateEdit : public QComboBox
     virtual bool eventFilter( QObject *, QEvent * );
     virtual void mousePressEvent( QMouseEvent * );
     virtual void focusOutEvent( QFocusEvent * );
+    virtual void wheelEvent( QWheelEvent * );
     virtual void keyPressEvent( QKeyEvent * );
 
     /**
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