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added webWidgets project
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Peter Schojer
285
WebWidgets/src/Table.cpp
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285
WebWidgets/src/Table.cpp
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//
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// Table.cpp
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//
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// $Id: //poco/Main/WebWidgets/src/Table.cpp#4 $
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//
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// Library: WebWidgets
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// Package: WebGUI
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// Module: Table
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//
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// Copyright (c) 2007, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#include "Poco/WebWidgets/Table.h"
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#include "Poco/WebWidgets/Visitor.h"
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#include "Poco/WebWidgets/XMLUtil.h"
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#include "Poco/Exception.h"
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#include "Poco/NumberFormatter.h"
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#include "Poco/NumberParser.h"
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#include "Poco/String.h"
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#include "Poco/DOM/Element.h"
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namespace Poco {
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namespace WebWidgets {
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const std::string Table::FACTORY_ID("table");
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const std::string Table::XML_WIDTH("width");
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const std::string Table::XML_BORDER("border");
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const std::string Table::XML_HEADER("header");
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const std::string Table::XML_BODY("body");
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const std::string Table::XML_FOOTER("footer");
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const std::string Table::VAL_COLS("cols");
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const std::string Table::VAL_ROWS("rows");
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const std::string Table::VAL_COL("col");
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const std::string Table::VAL_ROW("row");
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const std::string Table::VAL_CELL("cell");
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const std::string Table::VAL_TABLEFOOTER("footer");
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Table::Table(Poco::UInt32 numRows, Poco::UInt32 numCols, bool tableHasFooter, bool tableHasHeader, Poco::UInt32 borderStrength, Poco::UInt32 width):
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_cols(numCols),
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_border(borderStrength),
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_width(width),
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_tableHasFooter(tableHasFooter),
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_tableHasHeader(tableHasHeader),
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_table(numRows, Row(numCols, Poco::AutoPtr<Widget>())),
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_headerAttr(),
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_bodyAttr(),
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_footerAttr()
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{
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addAttribute(XML_BORDER, Poco::NumberFormatter::format(_border));
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if (_width > 0)
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addAttribute(XML_WIDTH, Poco::NumberFormatter::format(_width));
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poco_assert (_cols > 0);
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}
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Table::Table(const Poco::XML::Element* pElem):
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Panel(pElem),
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_cols(XMLUtil::getNumericAttrUnsigned<Poco::UInt32>(pElem, VAL_COLS)),
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_border(XMLUtil::getNumericAttrUnsigned<Poco::UInt32>(pElem, XML_BORDER, 0)),
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_width(XMLUtil::getNumericAttrUnsigned<Poco::UInt32>(pElem, XML_WIDTH, 0)),
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_tableHasFooter(XMLUtil::getBoolAttr(pElem, VAL_TABLEFOOTER, false)),
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_tableHasHeader(XMLUtil::getBoolAttr(pElem, XML_HEADER, true)),
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_table(),
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_headerAttr(),
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_bodyAttr(),
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_footerAttr()
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{
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Poco::UInt32 rows = 0;
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bool rowsDefined = false;
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std::string tmp = pElem->getAttribute(VAL_ROWS);
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if (!tmp.empty())
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{
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rows = Poco::NumberParser::parseUnsigned(tmp);
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_table.resize(rows, Row(_cols, Poco::AutoPtr<Widget>()));
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rowsDefined = true;
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}
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addAttribute(XML_BORDER, Poco::NumberFormatter::format(_border));
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// now parse the children of a table
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std::vector<const Poco::XML::Element*> cells = XMLUtil::getNamedElementChildren(pElem, VAL_CELL);
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std::vector<const Poco::XML::Element*>::const_iterator it = cells.begin();
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std::vector<const Poco::XML::Element*>::const_iterator itEnd = cells.end();
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Poco::UInt32 row(0);
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Poco::UInt32 col(0);
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for (; it != itEnd; ++it)
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{
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Poco::UInt32 rowAttr(row);
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tmp = (*it)->getAttribute(VAL_ROW);
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if (!tmp.empty())
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{
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rowAttr = Poco::NumberParser::parseUnsigned(tmp);
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if (rowAttr != row)
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col = 0;
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row = rowAttr;
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tmp = (*it)->getAttribute(VAL_COL);
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if (!tmp.empty())
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{
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col = Poco::NumberParser::parseUnsigned(tmp);
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}
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}
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else
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{
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// no row defined, check overflow
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tmp = (*it)->getAttribute(VAL_COL);
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if (!tmp.empty())
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{
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col = Poco::NumberParser::parseUnsigned(tmp);
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}
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else
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{
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// no column defined
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if (col == numberOfColumns())
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{
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col = 0;
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++row;
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}
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}
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}
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// createWidget
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if (!rowsDefined)
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{
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// auto increment
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if (numberOfRows() <= row)
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_table.resize(row+1, Row(_cols, Poco::AutoPtr<Widget>()));
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}
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std::vector<const Poco::XML::Element*> cellChild = XMLUtil::getAllElementChildren(*it);
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if (cellChild.size() > 1)
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throw Poco::SyntaxException("A cell can only have one single child!");
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else if (cellChild.size() == 1)
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{
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Poco::AutoPtr<Widget> ptrWidget = XMLUtil::createWidget(cellChild[0], this);
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addWidget(row, col, ptrWidget);
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}
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// no content is valid
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++col;
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}
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// extract header element
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std::vector<const Poco::XML::Element*> hdr = XMLUtil::getNamedElementChildren(pElem, XML_HEADER);
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if (hdr.size() > 1)
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throw Poco::SyntaxException("A Table can only have one single header!");
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if (hdr.size() == 1)
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Widget::parseUniversalAttributes(hdr[0], _headerAttr);
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// extract body element
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hdr = XMLUtil::getNamedElementChildren(pElem, XML_BODY);
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if (hdr.size() > 1)
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throw Poco::SyntaxException("A Table can only have one single body!");
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if (hdr.size() == 1)
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Widget::parseUniversalAttributes(hdr[0], _bodyAttr);
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hdr = XMLUtil::getNamedElementChildren(pElem, XML_FOOTER);
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if (hdr.size() > 1)
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throw Poco::SyntaxException("A Table can only have one single footer!");
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if (hdr.size() == 1)
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Widget::parseUniversalAttributes(hdr[0], _footerAttr);
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}
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Table::~Table()
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{
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}
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void Table::addWidget(Poco::UInt32 row, Poco::UInt32 col, Poco::AutoPtr<Widget> ptrWidget)
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{
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if (row >= _table.size() || col >= _cols)
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throw InvalidAccessException("Setting Widget outside of table boundaries");
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_table[row][col] = ptrWidget;
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}
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Poco::AutoPtr<Widget> Table::removeWidget(Poco::UInt32 row, Poco::UInt32 col)
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{
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Poco::AutoPtr<Widget> res;
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if (row < _table.size() && col < _cols)
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res = _table[row][col];
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return res;
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}
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Poco::AutoPtr<Widget> Table::getWidget(Poco::UInt32 row, Poco::UInt32 col) const
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{
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if (row >= _table.size() || col >= _cols)
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throw InvalidAccessException("Setting Widget outside of table boundaries");
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return _table[row][col];
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}
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void Table::appendRow(const Row& aRow)
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{
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if (aRow.size() != _cols)
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throw InvalidArgumentException("Column count differs");
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_table.push_back(aRow);
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}
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void Table::accept(Visitor& v)
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{
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v.visit(*this);
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}
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Poco::AutoPtr<Widget> Table::find(const std::string& id) const
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{
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Content::const_iterator it = _table.begin();
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Content::const_iterator itEnd = _table.end();
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Poco::AutoPtr<Widget> res;
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for (; it != itEnd; ++it)
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{
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Row::const_iterator itRow = it->begin();
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Row::const_iterator itRowEnd = it->end();
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for (; itRow != itRowEnd && res.isNull(); ++itRow)
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{
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res = Widget::find(*itRow, id);
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}
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}
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return res;
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}
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Poco::AutoPtr<Widget> Table::clone() const
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{
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Poco::AutoPtr<Table> ptr = new Table(0xffffffffu, static_cast<Poco::UInt32>(_cols), _tableHasFooter, _tableHasHeader, _border, _width);
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ptr->setAttributes(getAttributes());
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ptr->_bodyAttr = _bodyAttr;
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ptr->_footerAttr = _footerAttr;
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ptr->_headerAttr = _headerAttr;
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Content& table = ptr->_table;
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Content::const_iterator it = _table.begin();
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Content::const_iterator itEnd = _table.end();
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for (; it != itEnd; ++it)
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{
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table.push_back(Row());
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Content::iterator itInRow = (--table.end());
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Row::const_iterator itRow = it->begin();
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Row::const_iterator itRowEnd = it->end();
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for (; itRow != itRowEnd; ++itRow)
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{
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if ((*itRow))
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{
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Poco::AutoPtr<Widget> ptrChild = (*itRow)->clone();
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ptrChild->setParent(ptr);
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itInRow->push_back(ptrChild);
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}
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else
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itInRow->push_back(Poco::AutoPtr<Widget>());
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}
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}
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return ptr;
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}
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} } // namespace Poco::WebWidgets
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