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////////////////////////////////////////////////////////////////////////////////////////
//
// Nestopia - NES/Famicom emulator written in C++
//
// Copyright (C) 2003-2008 Martin Freij
//
// This file is part of Nestopia.
//
// Nestopia is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// Nestopia is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Nestopia; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
////////////////////////////////////////////////////////////////////////////////////////
#include "language/resource.h"
#include "NstApplicationException.hpp"
#include "NstObjectPod.hpp"
#include "NstCollectionVector.hpp"
#include "NstSystemKeyboard.hpp"
#include "NstSystemAccelerator.hpp"
namespace Nestopia
{
namespace System
{
struct Accelerator::CopyTable
{
enum { STACK_SIZE = 96 };
uint size;
ACCEL stack[STACK_SIZE];
Collection::Vector<ACCEL> heap;
};
void Accelerator::Clear()
{
if (handle)
{
::DestroyAcceleratorTable( handle );
handle = NULL;
}
}
uint Accelerator::Size() const
{
if (handle)
{
int size = ::CopyAcceleratorTable( handle, NULL, 0 );
if (size > 0)
return size;
}
return 0;
}
bool Accelerator::Get(Entries& entries) const
{
entries.Resize( Size() );
if (entries.Size())
{
if (::CopyAcceleratorTable( handle, entries.Ptr(), entries.Size() ) != int(entries.Size()))
throw Application::Exception( IDS_ERR_FAILED, L"CopyAcceleratorTable()" );
return true;
}
return false;
}
void Accelerator::Set(const ACCEL* const entries,const uint size)
{
NST_ASSERT( bool(entries) >= bool(size) );
Clear();
if (size)
{
Collection::Vector<ACCEL> actualEntries( size );
uint actualSize = 0;
for (uint i=0; i < size; ++i)
{
if (entries[i].fVirt && entries[i].key && entries[i].cmd)
actualEntries[actualSize++] = entries[i];
}
if (actualSize && (handle = ::CreateAcceleratorTable( actualEntries.Ptr(), actualSize )) == 0)
throw Application::Exception( IDS_ERR_FAILED, L"CreateAcceleratorTable()" );
}
}
const HeapString Accelerator::GetKeyName(const ACCEL& accel)
{
HeapString name;
if (accel.fVirt & FCONTROL)
name << Keyboard::GetName( VK_CONTROL ) << '+';
if (accel.fVirt & FALT)
name << Keyboard::GetName( VK_MENU ) << '+';
if (accel.fVirt & FSHIFT)
name << Keyboard::GetName( VK_SHIFT ) << '+';
name << Keyboard::GetName( accel.key );
return name;
}
ACCEL* Accelerator::Copy(CopyTable& table) const
{
if (handle && (table.size = Size()) != 0)
{
ACCEL* ptr;
if (table.size < CopyTable::STACK_SIZE)
{
ptr = table.stack;
}
else
{
table.heap.Resize( table.size + 1 );
ptr = table.heap.Ptr();
}
if (table.size == ::CopyAcceleratorTable( handle, ptr, table.size ))
return ptr;
}
return NULL;
}
ACCEL Accelerator::operator [] (const uint cmd) const
{
Object::Pod<ACCEL> entry;
CopyTable table;
if (const ACCEL* it = Copy( table ))
{
for (const ACCEL* const end = it + table.size; it != end; ++it)
{
if (cmd == it->cmd)
{
static_cast<ACCEL&>(entry) = *it;
break;
}
}
}
return entry;
}
}
}
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