First check-in of NxWidgets

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4505 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 198 insertions, 0 deletions

diff --git a/NxWidgets/libnxwidgets/src/cstringiterator.cxx b/NxWidgets/libnxwidgets/src/cstringiterator.cxx
new file mode 100644
index 000000000..2327af38f
--- /dev/null
+++ b/NxWidgets/libnxwidgets/src/cstringiterator.cxx
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+/****************************************************************************
+ * NxWidgets/libnxwidgets/src/cgraphicsport.cxx
+ *
+ *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX, NxWidgets, nor the names of its contributors
+ *    me be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************
+ *
+ * Portions of this package derive from Woopsi (http://woopsi.org/) and
+ * portions are original efforts.  It is difficult to determine at this
+ * point what parts are original efforts and which parts derive from Woopsi.
+ * However, in any event, the work of  Antony Dzeryn will be acknowledged
+ * in most NxWidget files.  Thanks Antony!
+ *
+ *   Copyright (c) 2007-2011, Antony Dzeryn
+ *   All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * * Neither the names "Woopsi", "Simian Zombie" nor the
+ *   names of its contributors may be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Antony Dzeryn ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Antony Dzeryn BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+ 
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include "cnxstring.hxx"
+#include "cstringiterator.hxx"
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Method Implementations
+ ****************************************************************************/
+
+using namespace NXWidgets;
+
+/**
+ * Constructor.  Moves the iterator to the first character in the string.
+ *
+ * @param string Pointer to the string that will be iterated over.
+ */
+
+CStringIterator::CStringIterator(FAR const CNxString* string)
+{
+  m_pString      = string;
+  m_pCurrentChar = m_pString->getCharArray();
+  m_currentIndex = 0;
+}
+
+/**
+ * Moves the iterator to the first character in the string.
+ *
+ * @param Returns false if the string is empty
+ */
+
+bool CStringIterator::moveToFirst()
+{
+  int length = m_pString->getLength();
+  if (length > 0)
+    {
+      m_pCurrentChar = m_pString->getCharArray();
+      m_currentIndex = 0;
+      return true;
+    }
+
+  return false;
+}
+
+/**
+ * Moves the iterator to the last character in the string.
+ *
+ * @param Returns false if the string is empty
+ */
+
+bool CStringIterator::moveToLast(void)
+{
+  int length = m_pString->getLength();
+  if (length > 0)
+    {
+      m_pCurrentChar = m_pString->getCharArray() + length - 1; 
+      m_currentIndex = length - 1;
+      return true;
+    }
+
+  return false;
+}
+
+/**
+ * Move the iterator to the next character in the string.
+ *
+ * @return True if the iterator moved; false if not (indicates end of string).
+ */
+
+bool CStringIterator::moveToNext(void)
+{
+  if (m_currentIndex < m_pString->getLength() - 1)
+    {
+      m_pCurrentChar++;
+      m_currentIndex++;
+      return true;
+    }
+  
+  return false;
+}
+
+/**
+ * Move the iterator to the previous character in the string.
+ *
+ * @return True if the iterator moved; false if not (indicates start of string).
+ */
+
+bool CStringIterator::moveToPrevious(void)
+{
+  if (m_currentIndex > 0)
+    {
+      m_pCurrentChar--;
+      m_currentIndex--;
+      return true;
+    }
+  return false;
+}
+
+/**
+ * Move the iterator to the specified index.
+ *
+ * @param index The index to move to.
+ * @return True if the iterator moved; false if not (indicates end of string).
+ */
+
+bool CStringIterator::moveTo(int index)
+{
+  // Abort if index exceeds the size of the string
+
+  if (index < m_pString->getLength())
+    {
+      // Move to the requested position
+
+      m_pCurrentChar = m_pString->getCharArray() + index;
+      m_currentIndex = index;
+      return true;
+    }
+  return false;
+}