table performance updates+JSEvent handling changes

WebWidgets/ExtJS/src/ArrayTableSerializer.cpp

@@ -0,0 +1,127 @@
+//
+// ArrayTableSerializer.cpp
+//
+// $Id: //poco/Main/WebWidgets/src/ArrayTableSerializer.cpp#3 $
+//
+// Library: ExtJS
+// Package: Core
+// Module:  ArrayTableSerializer
+//
+// Copyright (c) 2007, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// Permission is hereby granted, free of charge, to any person or organization
+// obtaining a copy of the software and accompanying documentation covered by
+// this license (the "Software") to use, reproduce, display, distribute,
+// execute, and transmit the Software, and to prepare derivative works of the
+// Software, and to permit third-parties to whom the Software is furnished to
+// do so, all subject to the following:
+// 
+// The copyright notices in the Software and this entire statement, including
+// the above license grant, this restriction and the following disclaimer,
+// must be included in all copies of the Software, in whole or in part, and
+// all derivative works of the Software, unless such copies or derivative
+// works are solely in the form of machine-executable object code generated by
+// a source language processor.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+//
+
+
+#include "Poco/WebWidgets/ExtJS/ArrayTableSerializer.h"
+#include "Poco/WebWidgets/Table.h"
+#include "Poco/DateTime.h"
+
+
+namespace Poco {
+namespace WebWidgets {
+namespace ExtJS {
+
+
+ArrayTableSerializer::ArrayTableSerializer()
+{
+}
+
+
+ArrayTableSerializer::~ArrayTableSerializer()
+{
+}
+
+
+void ArrayTableSerializer::serialize(std::ostream& ostr, const Table* pTable, std::size_t rowBegin, std::size_t rowCntUser)
+{
+	//[
+    //    ['3m Co',71.72,0.02,0.03,'9/1 12:00am'],
+    //    ['Alcoa Inc',29.01,0.42,1.47,'9/1 12:00am']
+	//]
+	const TableModel& tm = pTable->getModel();
+	const Table::TableColumns& tc = pTable->getColumns();
+
+	poco_assert_dbg (tc.size() == tm.getColumnCount());
+
+	std::size_t colCnt = tm.getColumnCount();
+	std::size_t rowCnt = tm.getRowCount();
+	if (rowBegin < 0)
+		rowBegin = 0;
+	if ((rowCntUser > 0) && (rowBegin + rowCntUser < rowCnt))
+		rowCnt = rowBegin + rowCntUser;
+	ostr << "[";
+	for (std::size_t row = rowBegin; row < rowCnt; ++row)
+	{
+		if (row != 0)
+			ostr << ",[";
+		else
+			ostr << "[";
+		for (std::size_t col = 0; col < colCnt; ++col)
+		{
+			if (col != 0)
+				ostr << ",";
+
+			// how do we distinguish if we want to write something as text or GUIElement?
+			// Example: Checkbutton can be written as text "true"/"false" or as a CheckButton
+			// we use the Cell: if we have a Cell set -> complex Type otherwise text
+			// -> already handled by the renderer!
+			const Poco::Any& aVal = tm.getValue(row, col);
+			
+			if (aVal.empty())
+				ostr << "''";
+			else
+			{
+				//FIXME: we have no type nfo at all, assume string for everything
+				bool isString = (typeid(std::string) == aVal.type());
+				Cell::Ptr ptrCell = tc[col]->getCell();
+				if (isString)
+					ostr << "'" << RefAnyCast<std::string>(aVal) << "'";
+				else if (ptrCell)
+				{
+					//date must be written as string
+					if (typeid(Poco::DateTime) == aVal.type())
+						ostr << "'" << tc[col]->getCell()->getFormatter()->format(aVal) << "'";
+					else
+						ostr  << tc[col]->getCell()->getFormatter()->format(aVal);
+				}
+				else
+					; //FIXME: 
+			}
+		}
+		ostr << "]";
+	}
+	ostr << "]";
+}
+
+
+const std::string& ArrayTableSerializer::contentType() const
+{
+	static const std::string ct("text/javascript");
+	return ct;
+}
+
+
+
+} } } // namespace Poco::WebWidgets::ExtJS