Import new upstream release 0.42

1 files changed, 98 insertions, 0 deletions

diff --git a/src/offsetConstraint.cpp b/src/offsetConstraint.cpp
new file mode 100644
index 0000000..72c1652
--- /dev/null
+++ b/src/offsetConstraint.cpp
@@ -0,0 +1,98 @@
+/* $Id: offsetConstraint.cpp,v 1.7 2006-11-05 04:42:43 ganzhorn Exp $
+ * This file is part of lfhex.
+ * Copyright (C) 2006 Salem Ganzhorn <eyekode@yahoo.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation version 2.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#include <QLabel>
+#include <QSpinBox>
+#include <QHBoxLayout>
+
+#include <algorithm> // for min<>()
+
+#include "local.h"
+#include "offsetConstraint.hpp"
+#include "box.hpp"
+
+OffsetConstraint::OffsetConstraint( QWidget * parent )
+    : QGroupBox(parent)
+{
+  QLayout* l = new QHBoxLayout(this);
+  this->setLayout(l);
+  hbox * h = new hbox(this);
+  l->addWidget(h);
+  new QLabel("X =",h);
+  stride = new QSpinBox(h);
+  stride->setRange(1,16);
+  stride->setValue(1);
+  connect(stride,SIGNAL(valueChanged(int)),
+	  this,SLOT(setStride(int)));
+
+  h = new hbox(this);
+  l->addWidget(h);
+  new QLabel("Y =",h);
+  offset = new QSpinBox(h);
+  offset->setRange(1,16);
+  offset->setValue(1);
+
+  setSizePolicy(QSizePolicy(QSizePolicy::Expanding,QSizePolicy::Fixed));
+}
+
+// public interface
+
+int OffsetConstraint::getStride(void) const
+{
+  return stride->text().toInt();
+}
+
+int OffsetConstraint::getOffset(void) const
+{
+  return offset->text().toInt();
+}
+
+off_t OffsetConstraint::next(off_t off) const
+{
+  return( ((off-getOffset())/getStride()+1)*getStride()+getOffset() );
+}
+
+off_t OffsetConstraint::prev(off_t off) const
+{
+  return( ((off-getOffset())/getStride() - 1)*getStride()+getOffset() );
+}
+
+// public slots
+void OffsetConstraint::setOffset(int x)
+{
+  offset->setValue( min(x,getStride()-1) );
+}
+
+void OffsetConstraint::setStride(int x)
+{
+  // constrain x to (0,MAXINT)
+  if( x < 1 ) {
+    stride->setValue(1);
+    return;
+  }
+
+  // constrain offset to [0,x)
+
+  // setRange() does not seem to work as the documentation says, so
+  // we have to manually change the value
+  if( offset->text().toInt() >= x )
+    offset->setValue(x-1);
+  offset->setRange(0,x-1);
+  return;
+}
+