110 lines
2.8 KiB
C++
110 lines
2.8 KiB
C++
/*
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* This file is a part of TTCalc - a mathematical calculator
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* and is distributed under the (new) BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2006-2008, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name Tomasz Sowa nor the names of contributors to this
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* project may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef headerfilemessages
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#define headerfilemessages
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#include <map>
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#include <windows.h>
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template<typename ProcReturnType>
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class Messages
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{
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public:
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typedef ProcReturnType (*MessageFunction)(HWND, UINT, WPARAM, LPARAM);
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typedef std::map<UINT, MessageFunction> MessageTable;
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void Associate(UINT message, MessageFunction message_function)
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{
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message_table.insert( std::make_pair(message, message_function) );
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}
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void Clear()
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{
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message_table.clear();
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}
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ProcReturnType Call(UINT key, HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam, bool * method_exists = 0)
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{
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typename MessageTable::iterator i = message_table.find(key);
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if( i == message_table.end() )
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{
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if( method_exists )
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*method_exists = false;
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return false;
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}
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if( method_exists )
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*method_exists = true;
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return i->second(hWnd, message, wParam, lParam);
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}
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bool IsMessage(UINT key)
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{
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typename MessageTable::iterator i = message_table.find(key);
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if( i == message_table.end() )
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return false;
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return true;
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}
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bool Empty() const
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{
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return message_table.empty();
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}
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private:
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MessageTable message_table;
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};
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#endif
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