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GuiRegister
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2003-02-14
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//--------------------------------------------------------------------------
//
// Copyright (c) 2002, Colin Granville
//
// 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.
//
// * The name Colin Granville may not 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.
//
//--------------------------------------------------------------------------
#ifndef GuiRegister_h
#define GuiRegister_h
#include "GuiObject.h"
enum Claim {DONT_CLAIM,CLAIM};
//*************************************************************************************
class GuiEventTarget
{
public:
virtual ~GuiEventTarget();
};
//*************************************************************************************
class GuiNullEventRegisterItem;
class GuiNullEventTarget : public GuiEventTarget
{
public:
GuiNullEventTarget();
GuiNullEventTarget(unsigned int interval);
virtual ~GuiNullEventTarget();
virtual void execute()=0;
void setInterval(unsigned int interval=0);
void destroy();
operator const void*() const {return item;}
operator void*() {return item;}
bool operator!() const {return item==0;}
private:
GuiNullEventRegisterItem* item;
friend class GuiNullEventRegisterItem;
GuiNullEventTarget(const GuiNullEventTarget&); //copying not allowed - not defined;
GuiNullEventTarget& operator=(const GuiNullEventTarget&);
};
//*************************************************************************************
class GuiToolboxRegisterItem;
class GuiToolboxEventTarget : public GuiEventTarget
{
public:
GuiToolboxEventTarget();
GuiToolboxEventTarget(const GuiObject*,int event_code);
virtual ~GuiToolboxEventTarget();
virtual Claim execute(GuiToolboxEvent&,const GuiIdBlock&)=0;
void setListener(const GuiObject*,int event_code);
void destroy();
operator const void*() const {return item;}
operator void*() {return item;}
bool operator!() const {return item==0;}
private:
GuiToolboxRegisterItem* item;
friend class GuiToolboxRegisterItem;
GuiToolboxEventTarget(const GuiToolboxEventTarget&); //copying not allowed - not defined;
GuiToolboxEventTarget& operator=(const GuiToolboxEventTarget&);
};
//*************************************************************************************
class GuiWimpRegisterItem;
class GuiWimpEventTarget : public GuiEventTarget
{
public:
GuiWimpEventTarget();
GuiWimpEventTarget(const GuiObject*,int event_code);
virtual ~GuiWimpEventTarget();
virtual Claim execute(GuiWimpPollBlock&,const GuiIdBlock&)=0;
void setListener(const GuiObject*,int event_code);
void destroy();
operator const void*() const {return item;}
operator void*() {return item;}
bool operator!() const {return item==0;}
private:
GuiWimpRegisterItem* item;
friend class GuiWimpRegisterItem;
GuiWimpEventTarget(const GuiWimpEventTarget&); //copying not allowed - not defined;
GuiWimpEventTarget& operator=(const GuiWimpEventTarget&);
};
//*************************************************************************************
class GuiMessageRegisterItem;
class GuiMessageEventTarget : public GuiEventTarget
{
public:
GuiMessageEventTarget();
GuiMessageEventTarget(int message_code);
virtual ~GuiMessageEventTarget();
virtual Claim execute(GuiWimpMessage&) = 0;
void setListener(int message_code);
void destroy();
operator const void*() const {return item;}
operator void*() {return item;}
bool operator!() const {return item==0;}
private:
GuiMessageRegisterItem* item;
friend class GuiMessageRegisterItem;
GuiMessageEventTarget(const GuiMessageEventTarget&); //copying not allowed - not defined;
GuiMessageEventTarget& operator=(const GuiMessageEventTarget&);
};
//*************************************************************************************
struct GuiRegister
{
static void initialise(GuiIdBlock& id_block);
static void poll(int *event_code=0, GuiWimpPollBlock* poll_block=0, int* poll_word=0);
static unsigned int get_null_event_time();
private:
static void dispatch(int event_code,GuiWimpPollBlock&);
};
#endif